1. Block A-59
  2. Galveston Area
      1. PLAN OF BORINGS
      2. DESIGN STRENGTH PARAMETERS
      3. AXIAL LOAD TRANSFER DATA
      4. AXIAL LOAD TRANSFER DATA
      5. STRATIGRAPHY AND PARAMETERS FOR P-Y DATA
      6. STRESS-STRAIN CURVES
      7. STRESS-STRAIN CURVES
      8. STRESS-STRAIN CURVES

    alt
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    Appendix B contains discussions of ana
    l
    ytical
    procedures used
    in
    our
    engineering analyses. Appendix C
    contains a positioning
    report
    by
    Fugro
    Chance,
    I
    nc.,
    of
    Lafayette, Louisiana
    .
    For the purposes
    of discussion and presentation, "driven pipe
    pile"
    is
    used
    in
    this report
    to represent
    foundation piles,
    caissons and conductors,
    unless otherwise
    specified.
    2.2 FIELD AND LABORATORY
    INVESTIGATIONS
    The field investigation
    was
    performed
    on Ju
    l
    y
    4
    through 6, 2008,
    from the
    RN
    Seaprobe.
    The
    soil
    cond
    itio
    ns were
    determined
    by performing
    four exploratory borings
    ,
    two at each
    SPM location with
    one
    boring
    at
    a
    selected
    anchor
    l
    eg location, and one
    boring
    at
    the
    proposed
    PLET location. Enterprise
    Field
    Services selected
    the
    boring
    locations. These
    borings were
    drilled to
    a penetration of 131-ft
    below
    mudline.
    The water
    depths
    at
    the boring locations ranged from 123 to 125
    ft. A chronological summary
    of
    field
    operations
    is
    presented
    in
    Appendix
    A.
    2.2.1
    Exploratory Borings
    FMMG
    personnel
    drilled
    the
    so
    il
    borings with a
    OMX
    drill
    rig
    positioned over
    the
    centerwell of
    the
    RN
    Seaprobe.
    The
    vesse
    l
    was anchored at
    the
    boring
    location by
    a 4-point mooring system.
    Soil
    conditions at
    the
    site were
    exp
    lored
    by
    drilling
    a group
    of four soil borings
    to 131-ft
    penetration below the
    seafloor. The
    final
    coordinates for the boring
    locations
    are presented
    in
    Table 2-1. A plan of borings within
    Block A-59,
    of
    the
    Galveston Area is presented on
    Plate
    2-1.
    Fugro
    Chance,
    Inc.,
    of
    Lafayette, Louisiana
    ,
    conducted surveying utilizing STARFIX and
    DGPS,
    and
    performed
    a 360-degree scanning sonar survey.
    The
    positioning report, prepared by
    Fugro
    Chance,
    is
    presented
    in Appendix C.
    The
    scanning sonar
    reports
    are available from
    Fugro
    Chance
    upon
    request.
    FMMG
    Boring
    Designation
    SPM
    #1 PLET
    SPM #1 ANCHOR
    LEG#2
    SPM
    #2 PLET
    SPM #2
    ANCHOR
    LEG
    #6
    Table 2-1:
    Final
    Boring Coordinates
    (Texas South Central Zone Coordinates)
    Fugro
    Chance
    Proposed
    Boring
    Final Boring
    Boring
    Coordinates
    Coordinates
    Designation
    Core 3
    X
    =
    3,258,627
    .
    75
    ft
    X = 3,258,640
    ft
    Y =
    236,494.60 ft
    Y = 236,466
    ft
    Core
    1
    X = 3,257,224.19 ft
    X = 3,257,200
    ft
    Y = 236,057.66
    ft
    Y
    =
    236,056 ft
    Core4
    X
    =
    3,265,632.42
    ft
    X
    =
    3,265,647
    ft
    Y
    =
    240,337.08 ft
    Y = 240,318
    ft
    Core
    2
    X = 3,266,735.50
    ft
    X
    =
    3,266,
    758 ft
    Y
    =
    241,308.73
    ft
    Y
    =
    241,331
    ft
    Boring
    Termination
    Depth (ft)
    131
    131
    131
    131
    Samples were
    obtained through 5.0-in.-OD, 4.5-in.-lF drill pipe at all
    the locations. Samples
    were
    spaced at 3-ft
    intervals
    to 20-ft
    penetration,
    at 5-ft
    intervals
    to
    68-ft
    penetration,
    and at 10-ft intervals
    thereafter to the final boring
    depth at the
    SPM
    #1
    ANCHOR LEG #2
    and SPM #2
    PLET locations
    .
    Sampling
    intervals
    at
    the
    SPM
    #1 PLET location
    was completed as follows: 3-ft
    intervals to
    20-ft penetration, 5-ft
    intervals to
    66-ft
    penetration,
    and 10-ft
    intervals thereafter to the final
    boring
    depth
    .
    Sampling intervals
    at
    the SPM #2 ANCHOR
    LEG
    #6
    l
    ocation
    was
    completed as
    follows
    :
    3-ft intervals
    to
    20-ft
    penetration,
    5-ft
    I
    -
    @
    -
    R
    -
    e
    -
    po
    _
    rt
    _
    N
    _
    o
    _
    . 02
    _ _
    0
    _
    1-
    -
    6
    -
    50
    -
    5
    2-2

    alt
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    ------
    intervals to 65-ft penetration, and 10-ft intervals thereafter
    to
    the final boring depth.
    The drilling and
    sampling techniques used to complete this boring are
    exp
    lain
    ed
    in
    detail in Appendix
    A.
    Two
    wa
    ter
    depths were measured at each boring using a seafloor sensor seated in the drill
    bit.
    The
    water depth measurements are
    tabul
    ated
    in Table 2-2. The water depth measurements are intended for
    the purpose of the geotechnical
    in
    vestigation
    only, and are not corrected for tidal or other
    va
    riati
    ons
    . If
    utilized for other purposes, the
    water depth
    measurement
    should
    be adjusted
    to
    account for meteorological
    tide and datum corrections. The
    water
    depths measuring procedures are explained
    in detail in Appendix B.
    Table 2
    -
    2: Measured Water Depths
    Boring
    Water Depth
    Time and Date
    Supplemental
    Time and Date
    Designation
    (ft)
    of Measurement
    Water Depth
    of Measurement
    (ft)
    SPM #1 PLET
    123
    0240 hours
    on
    123
    0720 hours on
    July
    5,
    2008
    July
    5, 2008
    SPM
    #1 ANCHOR
    123
    1440 hours
    on
    122
    2200
    hours on
    LEG #2
    July
    4, 2008
    July 4, 2008
    SPM
    #2 PLET
    125
    1135 hours
    on
    125
    1650 hours on
    July
    5,
    2008
    July
    5, 2008
    SPM #2 ANCHOR
    124
    0220 hours
    on
    124
    0655 hours on
    LEG
    #6
    July 6, 2008
    July
    6, 2008
    2.2.2
    Field and Laboratory Tests
    The soil testing program was designed to evaluate pertinent index and engineering properties
    of
    the
    foundation soils
    .
    During the field operation,
    all samples were extruded from the sampler and classified
    by
    th
    e soil
    technician or field
    eng
    ineer
    .
    Unit weight, Torvane, pocket penetrometer, miniature vane and
    unconsolidated-undrained triaxial compression tests
    were
    performed
    in the field on selected cohesive
    samples. All
    of the samples were
    shipped
    to Fugro's Houston laboratory where Atterberg limit tests, water
    content tests, and grain-size analyses, as well
    as
    additional density tests, unconsolidated-undrained triaxial
    comp
    ression
    tests, and miniature
    vane
    tests, were performed.
    A description of relevant
    lab
    ora
    tory
    procedures
    i
    s
    provided in Appendix A.
    The strength
    and
    classification test results are presented graphically
    on the Logs of Boring and Test Results in Section
    3.
    Grain-size distribution curves from sieve-analysis and stress-strain curves from triaxial compression tests
    are presented
    in Appendix
    A.
    2.3
    GENERAL SOIL CONDITIONS
    2.3.1
    Soil Stratigraphy
    The soil
    strat
    i
    graphy
    at each of the boring locations
    disclosed
    by the field and
    laborat
    ory
    investigations
    is
    presented
    in Section 3. The soil stratigraphy is based on the classification of soil
    samples
    recovered from
    the
    boring and observations
    m
    ade
    during drilling operations. Detailed soil descriptions, for
    each location, that include
    t
    extural
    variations and inclusions are noted
    on the respective
    boring
    log
    I
    -
    @
    Report No. 0201-6505
    2-3

    alt
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    alt
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    alt
    .s
    ....
    ~
    Cl Cl
    ~
    ~
    'O
    'O
    Q)
    Q)
    ~
    e
    Q)
    a.
    ,; a.
    '-' <t
    X
    =
    3,2
    56,40
    0
    ft
    X
    =
    3,261,400ft
    X
    =
    3,266,400ft
    Y
    =
    247,000 ft
    N
    Block
    A
    -5
    9

    Back to top


    Galveston
    Area
    ~
    Y
    =
    242,000 ft
    .,,.,.
    ........
    Offshore Terminal
    /
    '
    y
    =
    237,000
    ft
    I
    SPM
    #1
    PLET \
    I
    \
    SPM
    #1
    Anch
    1
    Leg
    #2
    1
    I
    \
    1,470 ft/
    '
    /
    .....
    -
    Y
    =
    232,000 ft
    Projection:
    Texas
    South Central
    Zone
    Coordinates
    PLAN OF
    BORINGS
    SPM~Anchor Leg #6
    .,,.,.
    ........
    /
    I
    \
    I
    SPM
    #2
    PLET \
    \
    ~
    I
    \
    1,470ft~
    '
    /
    .....
    __
    Texas Offshore Port System
    Block
    A-59,
    Galveston Area

    alt
    alt
    alt
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    i,i
    1ii
    0
    -
    v
    \
    II
    \"::'
    TERMS AND
    SYMBOLS
    USED ON
    BORING
    LOG
    SOIL TYPES
    SAMPLER TYPES
    [!Sand
    mSilt
    ~Clay
    ~Gravel
    ~Debr
    i
    s
    ~Liae,
    0
    ..
    ~Th;,.
    ~'" su,
    0
    ...
    Walled
    Test
    Tube
    !ill
    Silty
    msandy
    I
    Sandy
    ~Peat or
    VI,
    Coral
    Sand
    Silt
    C
    l
    ay
    High
    l
    y
    "
    Organic
    9
    v
    9
    v
    ~Clayey
    mClayey
    mSilty
    ~p;,100
    I
    Rock
    iShell
    ~Rock
    ~No
    Sand
    Silt
    Clay
    v
    Core
    Recovery
    v
    v
    SOIL GRAIN SIZE
    U.S
    .
    STANDARD SIEVE
    6"
    3"
    3/4"
    4
    10
    40
    200
    B
    OULDERS
    COBBLES
    GRAVEL
    SAND
    SILT
    CLAY
    COARSE
    FINE
    COARSE
    MEDIUM
    FINE
    152
    76.2
    19
    .
    1
    4.76
    2.00
    0.420
    0.074
    0.002
    SOIL GRAIN SIZE IN
    MILLIMETERS
    DENSITY OF GRANULAR SOILS(
    2,3
    l
    STRENGTH OF COHESIVE SOILS(
    1
    l
    Undrained
    Shear Strength,
    Consistency
    Kips Per Sg
    Ft
    Descriptive
    *Relative
    T
    erm
    Density,%
    Very
    Soft....
    ..............................................
    less than
    0.25
    Very
    L
    oose..
    ...............................................
    less than
    15
    Soft...
    .........................................................
    0.25
    to
    0.50
    Loose...
    ...........................................................
    15
    to 35
    Firm.
    ..........................................................
    0.50
    to
    1.00
    Medium Dense.
    ................................................
    35
    to
    65
    Stiff........
    ....................................................
    1.00
    to
    2.00
    Dense..
    ...........................................................
    65
    to
    85
    Very Stiff...
    .................................................
    2.00
    to
    4
    .0
    0
    Very Dense
    ............................................
    greater than
    85
    *Estimated from sampler driving record
    Hard.
    ....................................................
    greater than
    4.00
    SOIL STRUCTURE(
    1
    l
    Slickensided..
    ........................
    Having planes of weakness that
    appear
    slick and glossy. The degree
    of slickensidedness
    depends
    upon the
    spacing
    of slickensides and the ease of breaking along these planes.
    Fissured.............
    ...................
    Containing shrinkage
    or relief
    cracks,
    often filled with fine sand
    or silt,
    usually more or
    less
    vertical.
    Pocket....
    ..............................
    Inclusion of material
    of
    different texture
    t
    hat is smaller than
    the
    diameter of the
    sample.
    Parting.
    .................................
    Inclusion less than 1/8 inch thick extending through the sample.
    Seam.......
    .............................
    Inclusion 1/8 inch to
    3 inches
    thick extending through the sample.
    L
    ayer.
    ...................................
    Inclusion
    g
    r
    eater than
    3
    i
    n
    ches thick extending through the sample.
    Laminated.........
    ....................
    Soi
    l
    sample composed
    of alternating partings
    or
    seams
    of
    different soil types
    .
    l
    nterlayered......
    .....................
    Soil sample composed of alternating layers
    of
    different
    soil
    types
    .
    Intermixed....
    .........................
    Soil
    sample
    composed
    of
    pockets of different so
    i
    l types and layered or laminated
    structure
    is not
    evident.
    Calcareous
    ............................
    REFERENCES:
    (1)
    ASTM D
    2488
    (2)
    ASCE
    Manual
    56 (1976)
    (3)
    ASTM D
    2049
    Having appreciable quantities
    of
    carbonate.
    I
    nformation
    on each boring
    log
    is a compi
    l
    ation of subsurface conditions and soil or rock
    classifications obtained from the field as
    well
    as from
    laboratory
    testing of samp
    l
    es.
    Strata
    have been
    i
    n
    te
    r
    preted
    by
    commonly accepted
    procedures.
    The stratum lines on the log may
    be t
    r
    ansitiona
    l
    and
    approximate in
    nature.
    Water level measurements
    refer
    on
    l
    y
    to those observed
    at
    the times and
    p
    l
    aces indicated in
    the
    text, and may
    vary
    with time, geologic
    condition
    or construction activ
    i
    ty.
    I
    -
    @
    Report No.
    0201-6505
    PLATE
    2-2

    alt
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    +
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    C.INC. Si:
    1
    04
    §
    LI
    NE
    S::!103
    >,.,._
    §
    0
    ,,
    Report
    No. 0201-6505
    -
    \~
    --
    ----
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    "'
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    no
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    ..
    -+
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    -
    -
    -
    '
    "'
    '"'
    =
    "'
    '"'
    "'
    "'
    '
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    -
    '"'
    SPM #2
    Anchor Leg #6
    i
    1
    (J)
    .
    .....
    '
    "
    "
    "
    ...
    ,,.
    "'
    ...
    "'
    "
    '
    SPM#2
    PLET
    ...
    ~
    l!
    ~
    '
    "
    ~
    0
    -+
    --
    f+
    +
    e
    -i---
    =
    '"'
    '"'
    =
    .,.,
    ,
    ..
    ..,
    -
    Offshore
    Terminal
    =
    '"'
    ll
    l!
    ~
    ~
    ~
    §
    ""
    "
    "
    -
    '"
    ""
    ""
    ..
    ""
    ..
    "
    "
    ........
    SPM#1 Anchor Leg #2
    @
    -t
    ""
    ""'
    ""'
    ~
    .........
    ll
    ...
    '"'
    -
    +
    '
    "
    ~
    ""
    '"
    .
    --
    ~~
    @
    SPM #1 PLET
    -
    ""
    '"'
    ...
    '
    "'
    ""'
    ..,
    '"'
    ..,
    l!
    ij
    l
    I
    +
    +
    ..
    "'
    ........
    "'
    "'
    ...
    l!
    ~
    !
    ~
    '"'
    '"'
    '"'
    ~.
    '"'
    '
    "'
    '
    "'
    '
    "'
    --
    !!
    "
    '--
    ~
    "'
    "'
    ~
    ""
    "'
    11,
    ,.
    '"
    ;
    ~
    ~;
    "'
    MAP OF
    SOIL BORINGS
    AND SUBBOTTOM
    PROFILE LINES
    Texas Offshore Port System
    Block
    A
    -
    59, Galveston Area
    t
    ""'
    !I
    ....
    §
    -
    =
    f+
    A
    "'
    .
    no
    no
    "'+
    '"
    7!
    1)
    '"
    ,
    ..
    '+
    ll
    !!
    ~
    "'
    '"'
    ""
    ""
    '
    "
    .......
    ~
    ~
    ~
    +
    +
    "'
    '
    "'
    "'
    ..,
    ll
    ~
    ~
    '
    "
    ,
    ..
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    ..
    +
    '"'
    ..,
    ..,
    ""'
    ll
    ~
    ~
    +
    .........
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    -
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    PLATE
    2-3

    alt
    alt
    -------
    3.2 SPM #1 ANCHOR LEG #2 LOCATION
    3
    .
    2.1
    I
    ntroduction
    The
    field
    investigation
    at the location
    designated
    as
    SPM #1
    ANCHOR
    LEG #2 was
    performed
    on
    July
    4, 2008. So
    i
    l sampling was performed
    to
    131-ft penetration at
    Te
    xas
    South Central Zone Coordinates
    X
    =
    3,257,200
    ft
    and
    Y
    =
    236,056
    ft
    .
    The measured
    water
    depth ranged from
    122
    to 123 ft.
    3.2
    .
    2 Soil
    Stratigraphy
    The
    soil stratigraphy
    disclosed by the
    field and laboratory investigations is presented on
    the
    boring
    log,
    Plate 3
    -
    12.
    The
    soil stratigraphy
    is
    based
    on
    the
    classification
    of soil samples
    recovered from the
    boring and observations made during
    drill
    in
    g operations
    .
    A
    generalized summary
    of the major
    soil strata is
    tabulated below.
    Penetration, ft
    Stratum
    From
    To
    Description
    0
    2
    Very
    so
    ft
    sandy
    silty
    clay
    II
    2
    15
    M
    edi
    um
    dense fine sand
    111
    15
    30
    L
    oose sandy silt to silty
    fine sand
    interlayered with
    sa
    ndy
    silty clay
    IV
    30
    131
    Firm
    to very stiff clay
    Detail
    ed
    soil
    descriptions that
    include
    textural
    variations and
    inclu
    s
    ion
    s
    are
    noted on
    the
    boring log.
    A key to the terms and symbols
    used
    on
    the boring
    log is present
    ed
    on Pl
    a
    te
    2-2
    .
    The Roman
    numera
    l
    repre
    senti
    n
    g
    each
    stratum
    is also shown on the
    boring
    log and on
    rele
    vant
    p
    la
    t
    es.
    The
    variation in soil
    stratigraphy across
    this
    site
    is indicated
    in
    a
    comparison (integration) of the
    geophysical
    and geotechnical
    soil information
    presented
    on
    Plate
    3-13.
    3.2
    .
    2.1 Interpretation of Soi
    l
    Propert
    i
    es
    The
    shear strength and
    submerged unit weight profiles
    shown on
    Plates 3
    -
    14 and
    3-15,
    respectively,
    best represent
    the assemb
    l
    ed test
    results
    plotted on
    the
    boring log.
    These
    profiles
    were used
    in the
    engineering
    analyses
    .
    3
    .
    2.3
    Pile Design
    I
    nformation
    The pile
    design
    information
    developed for this study includes ult
    i
    mate axial capacities, axial
    load-
    pile movemen
    t
    data
    ,
    and
    lateral
    soil
    resistance-pile def
    l
    ection
    (p-y)
    characteristics.
    The analyt
    ic
    al
    methods
    used to
    develop
    this information are presented briefly
    in
    Section 2.5 and
    in more det
    a
    il
    in
    Appendix B
    .
    3
    .
    2.3
    .
    1 Axial Pile Design
    U
    l
    timate Axia
    l
    Capacity. The
    unit skin
    friction
    and
    unit
    end
    bearing va
    l
    ues
    plotted on Plates
    3-16
    and 3-17,
    respectively
    ,
    was calculated using
    th
    e
    AP! RP 2A methods described
    in Appendix
    B. These
    values were
    used to calculate
    the ultimate axial compressive and
    tens
    i
    l
    e capacities
    for 42-in
    .-dia
    meter pipe
    piles, driven
    to
    final penetration at the boring location
    .
    Capacity
    curves
    for dr
    iv
    en
    pipe piles
    (conductors,
    caissons
    and
    foundation
    piles) are presented on Plate
    3-18.
    API
    RP 2A
    recommends
    that
    pile penetr
    a
    tions be se
    l
    ected using appropriate factors
    of
    safety
    or
    pi
    l
    e
    resistance
    factors
    .
    These factors are discussed
    in
    Section
    2.5.1 of
    this report.
    Report No.
    020
    1-
    6505
    -
    fln
    -
    3-4
    -------

    alt
    alt
    Axial Load Transfer Data.
    Axial
    load-pile
    movement analyses are usually performed using a
    computer solution based on methods developed by Reese (1964) or Matlock, et
    al. (1976)
    .
    Plates
    3
    -
    19 and
    3-20 present the
    results
    as side
    load-side
    movement (t-z) and tip load-tip movement (Q-z) data
    for
    42-in.-
    diameter driven
    pip
    e
    piles
    ,
    respectively. The
    Q-z data should be used for foundation piles and neglected for
    caissons and conductor design
    .
    In developing the axial
    load
    transfer data in the cohesive soils, a post-peak
    adhesion ratio of 0.90 was utilized
    .
    3.2.3.2 Lateral Pile Design Data
    The soil resistance-pile deflection (p-y) characteristics of the soils at
    the
    boring
    location
    were
    developed for individual 42-in.-diameter driven pipe
    piles.
    These data may
    be used
    in lateral load
    analyses
    of driven piles, conductors and caissons.
    The
    p-y data for cyclic
    loading
    were developed
    to
    100-ft
    penetration using procedures that have been outlined
    in API
    RP 2A and briefly explained in Appendix B.
    The stratigraphy and parameters used to develop
    the
    p-y data are presented on Plate 3-21
    .
    The
    p-y data
    for 42-in.-diameter driven pipe piles are presented on
    Plate
    3-22.
    P-y
    values presented at 100-ft penetration
    may be used for lateral load analyses at greater depths.
    I
    Report No. 0201-6505
    -
    f&
    ---
    3-5

    alt
    alt
    alt
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    0
    10
    20
    30
    40
    5
    0
    60
    70
    80
    90
    10
    0
    110
    120
    130
    140
    150
    160
    1
    7
    0
    180
    1
    9
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    200
    Checkea t:ly:
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    .
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    :
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    A
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    :
    Date:
    X
    =
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    5
    7
    ,
    2
    0
    0'
    I
    DEN
    TI
    FICAT
    I
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    T
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    ,
    [%]
    Y= 236,056'
    BLO
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    20
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    0
    6
    0
    8
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    D SH
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    H
    CO
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    s
    South Cent
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    a
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    Zone Coordinat
    e
    s
    SUBMERGED UNIT W
    E
    I
    G
    HT
    ,
    [k
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    -
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    '
    0.03
    0
    .
    0
    4
    0
    .
    05
    0.06
    0
    .
    5
    1.0
    1.5
    2.0
    I
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    D
    Y SI
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    ~
    WOH
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    I
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    I
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    FI
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    SAND
    15
    D
    0
    .
    :
    I
    1
    Note
    :
    See PLA
    T
    E 3-
    1
    2
    b for deta
    il
    ed soi
    l
    I
    25
    D
    II
    .:
    :::
    -
    ..
    stratigraph
    y
    to
    4
    0
    -
    11 penetratio
    n
    .
    1
    5
    -
    -
    -
    ~
    10
    <
    .
    1
    115
    .
    0'l
    15
    0
    L
    OOS
    E
    O
    LI
    V
    E
    GRAY SAN
    D
    Y S
    IL
    T TO
    6
    II
    .
    D
    S
    ILT
    Y FIN
    E
    SAND
    I
    NTERLAYERED W
    ITH
    SAND
    Y
    SI
    LT
    Y C
    L
    AY
    8
    -
    -
    -
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    1
    ...
    - -
    -
    111
    1
    :-
    :
    -:
    20
    ..
    ..
    6
    0
    ..
    ...
    ..
    ..
    ..
    .
    _
    .
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    1
    3
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    0
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    \
    7
    -
    -
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    A
    ~
    .
    F
    I
    RM TO VERY ST
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    .
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    _
    _
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    _
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    I
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    -
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    40
    I
    -
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    i
    th sa
    n
    d p
    o
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    ,
    43' to 78'
    5
    ~
    -
    w
    i
    t
    h
    sand partin
    g
    s
    ,
    43
    '
    to 6
    8
    '
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    _
    __
    ..Jl
    ••
    _Q_
    +
    0
    -
    w
    i
    th sand
    s
    ea
    m
    s a
    t
    44'
    I
    -with
    a
    fe
    w
    shell fragm
    e
    nt
    s
    ,
    48' t
    o
    55
    '
    8
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    n
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    -~
    ,..
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    -
    y
    T
    50
    I
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    t
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    w
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    t 67'
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    .
    ~
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    m
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    n
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    o 97'
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    [j§l
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    ii
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    -
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    S
    H
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    ~-
    >--
    "=G
    --
    ---
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    -+----
    -
    130
    -
    140
    -
    1
    50
    -
    16
    0
    -
    170
    -
    180
    1--
    1
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    SAM
    P
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    I
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    STRENGTH
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    Number
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    d a
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    roxim
    a
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    y 5
    ft
    t
    o
    prod
    u
    ce a
    ...
    S
    OLU
    B
    I
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    IN HC
    L,
    [
    %
    ]
    ® POCKET
    PE
    NET
    R
    OM
    ETE
    R
    (P
    P)
    maximu
    m
    o
    f
    24 in.
    o
    f
    p
    e
    ne
    tra
    tio
    n o
    f a
    2.25
    -
    in
    .-
    OO,
    2.
    125
    -
    in
    .
    -
    lD
    thin-
    wa
    lled tub
    e
    P
    E
    R
    C
    E
    N
    T
    P
    ASS
    I
    NG
    -
    200
    S
    I
    EVE,
    [
    %
    )
    $
    TO
    RV
    AN
    E (TV)
    s
    a
    mp
    le
    r
    .
    "
    PU
    SH
    " deno
    te
    s
    a
    3.0
    0-
    in
    .
    -
    O
    D
    ,
    2
    .
    8
    3
    -
    i
    n
    .
    -
    l
    D thi
    n-wal
    led tube sa
    mp
    ler was
    W
    ATE
    R CONTENT
    (W)
    ,
    [%
    ]
    <l> REMOTE
    V
    ANE
    (
    R
    V)
    a
    d
    v
    a
    n
    c
    e
    d
    24
    i
    n
    .
    with the we
    ig
    ht
    o
    f t
    he
    drill s
    tri
    ng
    . 'WO
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    e
    n
    o
    t
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    2
    .
    50
    -i
    n
    .-
    OD,
    D
    S
    UBMERGE
    D UN
    IT
    W
    E
    IG
    HT
    (
    S
    UW)
    MI
    NIA
    T
    U
    RE V
    A
    NE (M
    V)
    (~ RE
    S
    I
    DUAL (
    MV
    r
    es
    )
    V
    A
    L
    U
    E
    )
    2
    .1
    25
    -
    i
    n.
    -
    l
    D
    l
    i
    n
    er
    s
    am
    plerwas
    a
    d
    v
    an
    ced
    24 i
    n
    .
    wit
    h
    the w
    e
    i
    g
    ht o
    f
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    m
    er
    .
    A
    UNC
    O
    NS
    O
    LI
    DA
    T
    E
    D
    UND
    RA
    I
    NED TRIA
    X
    IA
    L
    (
    UU
    )
    PLA
    S
    T
    IC LIM
    IT
    (P
    L
    )
    LIQ
    U
    I
    D LIM
    I
    T
    (L
    L)
    +--------
    ---
    ---
    --
    ------
    +
    (Open s
    ym
    bo
    l
    s
    indicat
    e
    r
    e
    m
    olde
    d
    (
    r
    )
    tes
    ts)
    LOG OF BOR
    I
    NG AND TEST RES
    UL
    TS
    T
    e
    xas Off
    s
    hore
    P
    ort System, SPM #1 Ancho
    r
    Leg #2
    B
    l
    ock A
    -
    59,
    G
    a
    l
    veston Area

    alt
    alt
    alt
    alt
    alt
    I
    @
    :::0
    (1)
    "O
    0
    ;::i.
    z
    ?
    0
    N
    .....
    0
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    u,
    0
    u,
    !;:;'
    Q)
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    co
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    0
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    co
    c
    0
    ~
    a>
    c
    ~
    Q)
    a..
    0
    X
    =
    3,257
    ,
    200'
    Y
    =
    236,056'
    :
    hecke
    Approved
    By:
    Texas
    South Centra
    l
    Zone
    Coordinates
    SEAFLOOR AT EL. -
    123'
    I
    ~
    lJ
    VERY SOFT OLIVE GRAY
    SANDY
    ~
    SILTYCLAY
    .....
    l -with
    shell
    fraaments
    BLOW
    COUNT
    WOH
    15
    IDENTIFICAT
    I
    ON TESTS,[%]
    20
    40
    60
    80
    '
    SUBMERGED
    UNIT
    WEIGHT,
    [kcf]
    0
    .
    03
    0.04
    0.05
    0.06
    +--
    a
    By:
    1i
    --
    ,
    UNDRAINED
    SHEAR
    STRENGTH
    [ksf]
    0
    .
    2
    0.4
    0.6
    0.8
    .('-.
    I
    I
    -
    5~
    ...
    1
    MEDIUM DENSE OLIVE
    GRAY
    FINE SAND
    -w
    ith
    a
    few
    shell
    fragments
    and
    mica, 3' to
    10'
    -
    -
    -
    10
    15
    20
    .....
    1
    -with
    a few clay
    seams
    at
    7'
    II
    ...
    ••
    .
    .
    -with
    a
    few
    clay pockets
    at 9'
    ...
    1
    -w
    ith
    shell
    fragments at
    13'
    I.
    .ll
    ~.
    L-
    ~-
    Ill
    115.0')
    LOOSE
    OLIVE
    GRAY SANDY SILT TO
    SILTY
    FINE
    SAND INTERLAYERED WITH
    SANDY SilTY CLAY
    -with
    a few shell fragments to
    20'
    -with a
    few clay pockets to 16'
    -with clay pockets and
    shell fragme
    nts
    at
    24'
    25
    15
    15
    6
    6
    D
    D
    ..
    D
    D
    --
    -
    D
    25
    L-
    30
    ,____
    .t
    t..
    130
    .0')
    FIRM TO VERY STIFF
    OLIVE
    GRAY
    CLAY
    -with
    a few shell fragments,
    33'
    to
    40'
    -with sand
    pockets and part
    i
    ngs
    and a
    few
    sand
    7
    .-
    -
    D
    6
    seams at 34'
    ,
    35
    1-W
    I
    .....
    40
    I
    -w
    ith
    many sand pockets and partings at 39
    '
    7
    0
    ,b
    I.A.
    ~
    '--~~~~~~~~~~--~~~~~.._~~---41-~---4~
    ....~~-19.-.~~~
    ....
    ~~~.-.~~---11-~~~
    .....
    ~~~.;;;;;;~~~'--~---------~~---1
    SAMPLING TECHNIQUES
    Number
    of blows of a
    175-lb weight
    (hamme
    r
    ) dropped approximately
    5 ft to produce a
    maximum
    of
    24 in.
    of
    penetration
    of a 2.25-in
    .
    -OD, 2.125-in.-lD thin-walled tube
    sampler.
    "
    PUSH" denotes
    a
    3.00-in.-OD,
    2.83-in
    .-
    l
    D thin-walled tube sampler
    was
    advanced
    24
    in. with
    the weight of the
    drtll
    strtng
    .
    'WOH"
    denotes a 2
    .
    50-in
    .-O
    D,
    2.125~n.-lD liner sampler was
    advanced
    24
    in.
    with the
    weight
    of the hammer.
    CLASSIFICATION TESTS
    STRENGT
    H
    TESTS
    -
    T
    SOLUBILITY
    IN
    HCL,
    [%]
    ®
    POCKET
    PENETROMETER (PP)
    PERCENT
    PASSING .200 S
    IE
    VE,
    [%]
    $
    TORVANE
    (TV)
    e
    WATER CONTENT
    CW)
    ,
    [%]
    <!>
    REMOTE VANE (RV)
    D
    SUBMERGED UN
    I
    T
    WEIGHT (SU\N)
    +
    MINIATURE VANE (MV) (~
    RESIDUAL
    (MVres)
    VALUE)
    A
    UNCONSOLIDATED
    UNDRAIN
    E
    D
    TR
    I
    AXIAL (UU)
    PLASTIC
    LIMI
    T
    (PL)
    LIQUID LIMIT
    (LL)
    +----------------------+
    (O
    pen
    sy
    m
    bo
    l
    s
    indicate
    remolded
    (r)
    tests)
    LOG
    OF
    BORING
    AND
    TEST RESULTS
    Texas
    Offshore Port System, SPM #1 Anchor
    Leg
    #2
    .
    Block A-59, Galveston Area
    0
    5
    10
    15
    20
    25
    30
    35
    40
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    ....
    -
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    0
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    -
    ~
    Q)
    c
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    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    alt
    s
    Offset:
    ~
    ~
    ~
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    .1
    0
    0.1
    1
    D.!2
    Y
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    ?t
    }
    ----------
    L.IG~CUM
    ft
    iU..J
    .+
    (D
    Report No. 0201-6505
    -~9----
    STRENGTH
    T
    ESTS
    '
    ~
    POCKET fa'HC.TROMETiR
    (!11)
    '{, 'i'ORVAffi (TV)
    ~
    Ri:tJOTE. ....ANE
    f
    P.\J)
    +
    t.1!NtAT
    U
    RE
    \)J...~E
    (MVj
    t&
    rii:!.IDUAI..
    l
    l.l\'t
    ,,u}
    ;,~DC
    }
    A UNCONSOL!OA.j;O
    ~
    JNC-?,A:N~C
    lll/AIC
    ~
    l-.l
    {
    UiJ)
    ~TION"TUTS,.[11,j
    :::::.11-
    ~
    --'r-~-~'i-
    ~-i'--
    ~--'r-
    ~
    ----t1
    SUBhD'Cil:D
    UNrt
    lltOQKf
    .
    l"d)
    -
    +
    ----
    -+
    -4
    .....
    +
    ---.
    0
    0
    0
    0
    0
    0
    .... ----- ---+
    c
    .......
    0
    0
    ..
    0
    ••
    0
    ••
    .....
    GEOPHYSICAL
    AND
    GEOTECHNICAL INTEGRATION
    Te
    x
    as Offshore Port S
    ys
    tem
    ,
    SPM
    #1 Anchor
    Leg
    #2
    Block A-59, Gal
    v
    eston
    Area
    18500
    Portion
    of
    Subbottom Profiler
    Line
    2003
    N
    .050
    .060
    .Q70
    .080
    .
    0
    90
    .10
    0
    .
    1
    10
    .120
    PLA
    T
    E 3-13

    alt
    alt
    alt
    alt
    alt
    alt
    1
    3
    N
    0
    .
    0
    I
    -
    .
    0
    (fa
    ~
    Cl
    I
    i
    2
    0
    I
    ;..:.
    ID
    §
    !!!
    Cl
    I
    4
    0
    ~
    ........
    Q)
    ~
    1--
    0
    0
    ..::::
    ro
    60
    Q)
    Cl)
    3::
    0
    Q)
    Ill
    c
    8
    0
    0
    :.::;
    .....
    I-
    Q)
    ro
    c
    Q)
    a..
    1
    00
    lli
    ]~
    ~~
    Clo
    "'
    ~
    Cl
    .hl
    ..
    Cl
    ~
    12
    0
    ~
    t
    &
    ;..:.
    ;..:.
    ID
    ID
    'O
    "
    QI
    ~
    >
    0
    e
    1
    4
    0
    .,
    a.
    .c a.
    (.)
    <>::
    Repo
    rt
    No
    .
    0201-6505
    -
    @
    -
    S
    h
    ear Stre
    ng
    t
    h
    Pro
    fil
    e,
    [k
    sf]
    0
    .
    5
    1.0
    1
    .
    5
    2
    .
    0
    2.5
    ------
    5°, N
    q
    = 2
    0
    .
    0,
    fm
    x
    = 1.7 ksf,
    q
    max
    100 ksf
    II
    --
    -
    --
    -
    -- -
    --
    -
    clay pro
    fil
    e
    4>
    = 20°,
    6
    = 15°, f
    m
    = 1
    .
    0 ksf (see no
    e2)
    I
    ll
    \
    -
    \
    -
    -
    - ---
    N
    otes:
    1. Roman numerals refer to
    t
    he
    st
    r
    atig
    r
    ap
    h
    y as
    described
    in the text and on the bor
    i
    ng
    l
    og.
    2
    .
    Clay p
    r
    ofile
    in this layer is used for end
    bearing compu
    t
    ation
    .
    -
    -
    ---
    -----
    - -
    ----
    -----
    DES
    I
    GN STRENGTH PARAMETERS
    Texas
    O
    ffs
    hore
    P
    o
    rt Syste
    m
    , SPM #
    1
    Anch
    o
    r Leg #2
    Block A
    -
    59, Ga
    l
    vest
    on
    Area
    P
    LATE 3-14

    alt
    alt
    alt
    alt
    alt
    Submerged Un
    i
    t Weight, [kcf]
    0.00
    0
    0.02
    0
    .
    04
    0.06
    0
    .
    08
    0.10
    ~
    I
    I
    ~
    I
    O
    J
    ~
    I
    :.::::;'
    Q)
    ~
    .....
    ~
    0
    0
    20
    40
    60
    Q)
    (J)
    3:
    0
    Q)
    Q'.l
    5
    80
    :.::::;
    ......
    ctl
    -
    Q)
    c
    Q)
    a..
    100
    120
    140
    ----
    ,____
    ___
    ---L
    ~---
    _ __j_ _
    _
    II
    -
    --
    -
    +------
    ---
    ----
    Ill
    ----
    ----
    -
    '
    -
    ------
    ----
    I
    Note
    :
    Roman numerals refer to the stratigraphy as
    described in th
    e
    text and
    on
    the boring
    log
    .
    l
    \
    )
    IV
    I
    .,_ _____
    ------
    ____
    \__
    ------ ------
    DES
    I
    GN SUBMERGED UNIT WEIGHT
    Texas Offshore Port System, SPM
    #1 Anchor Leg #2
    B
    l
    ock A
    -
    59, Galveston Area
    I
    Report No. 0201-6
    5
    05
    -
    @
    --
    PLATE 3-15

    alt
    alt
    alt
    I
    tP
    _e_
    -
    ~
    'tP
    .;
    iii
    0
    I
    ~
    I
    t
    ~
    I
    0
    I-
    ~~
    --;;;--
    ~~
    M
    "'
    ~
    0
    0
    J
    t
    ~
    l's:.
    ;.:.
    m
    >,
    m
    .,,
    -0
    (I)
    Q)
    >
    .><
    e
    u
    Q)
    0.
    .c
    a.
    (.)
    <(
    ~
    Q)
    Q)
    ..,._.
    .......
    L..-
    0
    0
    ..::
    ctl
    Q)
    CJ)
    ;:
    0
    co
    Q)
    c:
    0
    :.:::::
    ctl
    .....
    L..
    Q)
    c:
    Q)
    a..
    Un
    i
    t Skin Friction,
    [ksf]
    0.0
    0.5
    1.0
    1.5
    2
    .
    0
    2.5
    o~
    -------,-------...,..------~--------.,..----,---
    -
    -.
    Notes:
    1.
    Roman
    nur11e
    r
    als refer to
    the
    stratigraphy as
    described
    in
    the text and on the
    boring log
    .
    2
    .
    Tension
    and
    compression curves co
    i
    ncide.
    II
    Ill
    140----
    ----------
    --
    ....-.
    --
    ----......i
    ------
    --.......------
    ...
    UNIT
    SKIN FRICTION
    API RP 2A (2000) Method
    Texas
    Offshore Port System, SPM
    #1 Anchor
    Leg #2
    Block
    A-59, Galveston Area
    I
    Report No
    .
    0201-6505
    -@-
    -
    PLATE
    3-16

    alt
    alt
    alt
    alt
    I
    ,;/J
    «::>
    --
    ;s
    !
    'fJS
    iii
    1ii
    0
    l
    ~
    !
    t
    c:
    ~
    0
    [
    -
    ~
    Q)
    ~
    .._;-
    I
    0
    0
    q::
    ctl
    Q)
    (f)
    3::
    0
    a3
    Cl'.l
    c
    0
    :.;::;
    ctl
    .....
    '-
    Q)
    c
    Q)
    a..
    d,
    ~~
    ~~
    ()<,
    ~
    iii
    ~
    0
    1ii
    0
    "'
    VI
    ..._
    ..j
    Q
    ~
    i
    >,
    ;,:,
    m
    m
    'C
    'C
    Q)
    1.1
    >
    0
    [
    Q)
    .c:
    0.
    (.)
    <(
    0
    0
    20
    40
    60
    80
    100
    120
    140
    Unit
    End Bearing,
    [ksf]
    5
    10
    15
    20
    II
    '
    ------
    Ill
    --
    -----
    Notes:
    1.
    Roman
    numerals
    refer
    to
    the stratigraphy as
    described in
    the text and
    on the
    boring
    log.
    2.
    Dashed
    l
    ine
    rep
    resents
    equivalent unit end
    bearing avai
    l
    ab
    l
    e
    from frictiona
    l
    res
    istance
    of
    so
    i
    l plug
    ins
    i
    de the
    indica
    t
    ed
    pile
    size.
    3
    .
    End
    bearing component
    is
    neg
    l
    ected
    f
    or
    caissons
    and
    conductors.
    -----
    ------
    -----
    -----
    UNIT
    END
    BEARING
    API RP
    2A
    (2000) Method
    Texas
    Offshore Port System
    ,
    SPM #1 Anchor Leg #2
    Block
    A-59, Galveston Area
    !
    -@
    Report No
    .
    0201
    -6505
    ___
    25
    PLATE
    3-17

    alt
    alt
    alt
    alt
    ~
    ~
    ~
    iii
    .;
    0
    I
    ~
    I
    ;,.:,
    [D
    0
    ~
    l
    1
    -
    !
    ~~
    --
    ~~
    6o
    ~
    .;
    iii
    .;
    iii
    0
    0
    V)
    ~
    l
    ~i
    ;,.:,
    ;,.:,
    [D
    [D
    "O
    "O
    Q)
    Q)
    ....-,
    -
    (1)
    ..._.
    ~
    ......
    ~
    0
    0
    ii=
    m
    (1)
    (/)
    ~
    0
    ai
    co
    c
    :.;::::;
    m
    ......
    0
    -
    (1)
    c
    (1)
    a..
    U
    l
    t
    i
    mate Axial Capacity, [kips]
    500
    1000
    1500
    2000
    Note:
    Roman numerals
    r
    efer to the
    stratigraphy as
    described in
    the
    text
    and
    on the boring
    l
    og.
    \
    \
    2500
    II
    Ill
    e
    .x
    u
    Q)
    a.
    .c a.
    140._
    ________________________________........_______.
    0
    4:
    ULTIMATE AXIAL CAPACITY
    AP
    I
    RP
    2A (2000) Method
    42-in
    .
    -Diameter
    Driven Pipe Piles
    Texas Offshore Port System, SPM
    #1 Anchor Leg #2
    Block A-59, Ga
    l
    veston Area
    I
    Report
    No. 0201-6505
    -
    @
    ---
    PLATE
    3-18

    alt
    alt
    alt
    alt
    alt
    .S!
    ..
    0
    ~
    1~
    ~1
    [
    !
    ~
    (
    a,
    "-\
    ~
    >,
    >,
    m
    m
    "O
    "O
    .,
    ~
    K
    .,
    u
    s:
    a.
    u
    <(
    PENETRATION
    BELOW
    CURVE POINTS
    MUDLINE
    (fe
    et)
    1
    2
    3
    4
    5
    0
    .
    0
    t
    0
    .
    00
    0
    .
    00
    0
    .
    00
    0
    .
    00
    0
    .
    00
    z
    0
    .
    00
    0
    .
    07
    0
    .
    13
    0
    .
    24
    0.34
    1
    .
    0
    t
    0
    .
    00
    0
    .
    03
    0
    .
    04
    0
    .
    06
    0
    .
    08
    z
    0
    .
    00
    0
    .
    07
    0
    .
    13
    0
    .
    24
    0
    .
    34
    2
    .
    0
    t
    0.00
    0
    .
    03
    0
    .
    05
    0.08
    0
    .
    09
    z
    0
    .
    00
    0
    .
    07
    0
    .
    13
    0
    .
    24
    0
    .3
    4
    2.0
    t
    0
    .
    00
    0
    .
    04
    0
    .
    04
    z
    0.00
    0
    .
    10
    42
    .
    00
    15
    .
    0
    t
    0
    .
    00
    0
    .
    33
    0
    .
    33
    z
    0.00
    0
    .
    10
    42.00
    15
    .
    0
    t
    0.00
    0
    .
    19
    0
    .
    19
    z
    0
    .
    00
    0
    .
    10
    42
    .
    00
    30
    .
    0
    t
    0
    .
    00
    0.37
    0
    .
    37
    z
    0
    .
    00
    0.10
    42
    .
    00
    30
    .
    0
    t
    0
    .
    00
    0
    .
    15
    0.26
    0.38
    0.46
    z
    0
    .
    00
    0
    .
    07
    0.13
    0
    .
    24
    0.34
    77.0
    t
    0
    .
    00
    0
    .
    33
    0.56
    0
    .
    84
    1
    .
    00
    z
    0
    .0
    0
    0
    .
    07
    0
    .
    13
    0.24
    0.34
    89
    .
    0
    t
    0
    .
    00
    0
    .
    38
    0
    .
    63
    0
    .
    95
    1
    .
    14
    z
    0
    .
    00
    0.07
    0.13
    0
    .
    24
    0.34
    97
    .
    0
    t
    0
    .
    00
    0.41
    0.69
    1
    .
    03
    1
    .
    24
    z
    0
    .0
    0
    0
    .
    07
    0
    .
    13
    0
    .
    24
    0
    .
    34
    100
    .
    0
    t
    0.00
    0.42
    0
    .
    71
    1.06
    1.27
    z
    0
    .
    00
    0.07
    0.13
    0
    .
    24
    0.34
    131
    .
    0
    t
    0
    .
    00
    0
    .
    55
    0
    .
    91
    1.37
    1.65
    z
    0
    .
    00
    0.07
    0.13
    0.24
    0
    .
    34
    Notes
    :
    1
    .
    "t"
    is
    mobilized
    soil-p
    ile
    adhesion, [ksf).
    2.
    "z"
    is a
    xi
    a
    l
    pile d
    i
    splacement, [in
    .
    ]
    .
    3. Data for
    tension
    and compression coincide.
    AXIAL
    LOAD TRANSFER DATA
    (T-Z DATA)
    API RP 2A (2000) Method
    42-in.-Diameter Driven Pipe
    Piles
    6
    0
    .
    00
    0
    .
    42
    0
    .
    08
    0.42
    0
    .
    10
    0.42
    0
    .
    5
    1
    0.42
    1
    .
    11
    0.42
    1
    .
    27
    0.42
    1.37
    0.42
    1.41
    0.42
    1
    .
    83
    0.42
    I
    Report No
    .
    0201-6505
    -
    l
    'IP
    Texas
    Offshore
    Port
    System, SPM
    #1
    Anchor Leg
    #2
    Block A-59,
    Galveston
    Area
    7
    8
    0
    .
    00
    0
    .
    00
    0
    .
    84
    42
    .
    00
    0.08
    0
    .
    08
    0
    .
    84
    42
    .
    00
    0.09
    0
    .09
    0
    .
    84
    42
    .
    00
    0.46
    0.46
    0
    .
    84
    4
    2.00
    1
    .
    00
    1
    .
    00
    0.84
    42
    .
    00
    1.14
    1
    .
    14
    0.84
    42
    .
    00
    1.24
    1
    .
    24
    0
    .
    84
    42
    .
    00
    1
    .
    27
    1
    .
    27
    0.84
    42
    .
    00
    1.65
    1
    .
    65
    0
    .
    84
    42
    .
    00
    PLATE
    3
    -
    19

    alt
    alt
    alt
    alt
    alt
    I
    ~
    I
    t
    ~
    1
    0
    ;.:.
    ;.:.
    m
    m
    'O
    'O
    ....
    >
    .><
    0
    0
    a.
    .c
    QJ
    c.
    ()
    .,:
    PENETRATION
    BELOW
    CURVE POINTS
    MUDLINE
    (feet)
    1
    2
    3
    4
    5
    6
    30.0
    Q
    0
    13
    26
    39
    47
    52
    z
    0.00
    0.08
    0
    .
    55
    1.76
    3
    .
    07
    4
    .
    20
    13
    1
    .0
    Q
    0
    43
    87
    130
    156
    173
    z
    0.00
    0
    .
    08
    0.55
    1.76
    3.07
    4.20
    Notes: 1
    .
    "Q"
    is mobilized end bearing capacity,
    [kips]
    .
    2.
    "
    z"
    is axial tip displacement,
    [in
    .].
    AXIAL LOAD TRANSFER DATA
    (Q-Z DATA)
    API RP
    2A (2000) Method
    42-in.-Diameter Driven Pipe Piles
    Texas Offshore Port System, SPM
    #1 Anchor Leg
    #2
    Block A
    -5
    9, Galveston Area
    Report No.
    0201-6505
    -r<.F6
    -
    -
    7
    52
    42.00
    173
    42
    .
    00
    PLATE 3-20

    alt
    alt
    alt
    alt
    alt
    I
    ~
    I
    ~
    .
    ~
    l
    !
    I
    ~
    I
    f
    l
    (
    -
    0
    Local Scour
    Loose sandy silt to silty fine sand
    interlayered with sandy silty clay
    Firm to ve stiff clay
    Notes:
    r
    Penetration
    o
    ~-----------~
    2
    '
    ---------
    Scour to 5'
    5'
    -
    -
    -
    -
    -
    -
    -
    -
    -
    k
    =40
    pci
    15'
    ---------
    k
    =
    10
    pci
    30'
    ---------
    E
    50
    = 2.0 % at 30'
    decreasing linearly to
    E50 =1
    .
    0
    % at
    100'
    100'
    -
    -
    -
    -
    -
    -
    -
    -
    -
    1. E:
    50
    is axial strain at half of peak deviator stress for cohesive soils.
    2. Soil strength parameters are shown on Plate 3-14
    .
    3
    .
    Submerged unit weight profile is shown on Plate 3-15.
    4.
    k is the modulus of horizontal subgrade reaction for granular soils.
    STRATIGRAPHY AND PARAMETERS FOR P-Y DATA
    Texas Offshore Port System, SPM
    #1 Anchor Leg #2
    Block A-59, Galveston Area
    _
    (lJ!l
    eport No
    .
    0201-6505
    ---------------- ----
    PLATE 3-21

    alt
    alt
    alt
    alt
    alt
    0
    ~
    I
    ~
    1
    i
    ~
    r
    !
    l
    0
    PENETRATION
    BELOW
    MU DUNE
    (feet)
    1
    0.0
    p
    0
    y
    0
    .
    00
    5.0
    p
    0
    y
    0
    .
    00
    9
    .
    0
    p
    0
    y
    0
    .
    00
    12.0
    p
    0
    y
    0.00
    15
    .
    0
    p
    0
    y
    0.00
    15.0
    p
    0
    y
    0
    .
    00
    19
    .
    0
    p
    0
    y
    0.00
    23.0
    p
    0
    y
    0.00
    30.0
    p
    0
    y
    0
    .
    00
    30
    .
    0
    p
    0
    y
    0.00
    100.0
    p
    0
    (and below)
    y
    0
    .
    00
    Notes: 1
    .
    "p" is so
    i
    l resistance, [lb/in.].
    2
    .
    'Y'
    is lateral deflection, [in.]
    .
    CURVE POINTS
    2
    3
    4
    5
    0
    42.00
    0
    42
    .
    00
    164
    273
    361
    454
    0
    .
    06
    0.11
    0.15
    0.23
    404
    674
    890
    1119
    0.08
    0.15
    0.22
    0
    .3
    2
    745
    1242
    1640
    2062
    0
    .
    11
    0
    .
    19
    0
    .
    28
    0.42
    329
    549
    724
    911
    0.19
    0
    .
    34
    0.49
    0
    .
    74
    499
    831
    1097
    1380
    0.23
    0.40
    0.58
    0
    .
    8.7
    690
    1150
    1518
    1909
    .
    0.26
    0.46
    0.66
    0
    .
    99
    1098
    1830
    2415
    3038
    0.31
    0
    .
    56
    0
    .
    81
    1
    .
    21
    236
    362
    535
    787
    0
    .
    06
    0
    .
    21
    0
    .
    63
    2
    .
    10
    618
    948
    1401
    2061
    0.03
    0.10
    0.31
    1.05
    P-Y DATA
    (CYCLIC LOADING)
    API RP
    2A (2000) Method
    42-in
    .
    -Diameter Driven Pipe Piles
    6
    519
    0.35
    1281
    0.50
    2360
    0.64
    1042
    1.13
    1579
    1
    .
    34
    2185
    1
    .
    53
    3477
    1
    .
    86
    1134
    6.30
    2967
    3
    .
    15
    Texas Offshore Port System, SPM #1 Anchor Leg #2
    Block A
    -
    59, Galveston Area
    !
    Report No
    .
    0201-6505
    -
    @
    --
    7
    8
    541
    547
    0.51
    42
    .
    00
    1334
    1348
    0
    .
    72
    42
    .
    00
    2459
    2484
    0
    .
    93
    42
    .
    00
    1086
    1097
    1
    .
    64
    42
    .
    00
    1646
    1662
    1.93
    42.00
    2277
    2300
    2.21
    42.00
    3623
    3660
    2.69
    42.00
    1134
    42.00
    2967
    42.00
    PLATE
    3-22

    alt
    alt
    !
    ~
    Date
    1
    ~
    July 4, 2008
    ts-'
    l
    l
    ~
    f
    ~
    ~
    l
    ~
    ~
    ~
    ~
    'i
    ~
    I
    Report
    No. 0201-6505
    -
    @
    --
    -
    ---
    Time
    From
    T
    o
    Desc
    ri
    ption of Activities
    ****
    0950
    Arrive
    in Block A-59, Galveston Area, SPM #1
    Anchor Leg #2 location onboard the vesse
    l
    RIV
    Seaprobe.
    0950
    1200
    Wait on weather. (Seas: 6 ft, Winds:
    45
    mph
    gusts.)
    ****
    1130
    Conduct pre-sh
    i
    ft safety meeting.
    1200
    1340
    Set 4-pt anchor spread.
    ****
    1245
    Conduct task change safety meeting.
    1
    340
    1400
    Rig up to drill and
    samp
    l
    e.
    ****
    1400
    Estimate water depth
    of 118 ft with vessel's echo
    sounder and 122
    ft using wireline techn
    i
    que.
    1400
    1420
    R
    un
    sca
    n
    ning sonar
    1420
    1440
    Run drill pipe to mudline
    .
    ****
    1440
    Measure water depth of 123 ft with the bottom
    sensor/p
    i
    pe ta
    ll
    y and 122.3 ft
    with
    pressu
    r
    e
    transducer.
    1440
    2130
    Dr
    il
    l and sample. Boring te
    r
    minated at 131-ft
    penetration
    .
    2
    1
    30
    2200
    Pu
    ll
    drill p
    i
    pe above mudline and reposition vessel.
    ****
    2200
    Measure supplemental water depth o
    f
    122
    ft
    w
    i
    th
    the bottom sensor/pipe tally and 120.5 ft with
    pressure transducer
    .
    2200
    2225
    Pu
    ll
    dri
    ll
    pipe to deck and secure equipment for
    trave
    l.
    2225
    2340
    Pu
    ll
    anchors.
    2340
    ****
    Depart
    l
    ocation.
    .
    SUMMARY OF FIELD OPERATIONS
    Texas Offshore Port Sys
    t
    em, SPM
    #1
    Anchor Leg #2
    Block A-59, Ga
    l
    veston Area
    PLATE
    A-2

    alt
    alt
    alt
    I
    @
    :;o
    (1)
    "O
    0
    ;:i.
    z
    ?
    0
    IV
    .....
    0
    6,
    01
    0
    u,
    Checked By:
    ;ftJ
    Approved By: ~-.
    Summary of Test Results
    Date
    :
    '//5-/oJ-
    Date:
    ihh
    Job No
    .
    :
    Bo
    ring:
    Block
    :
    A
    rea
    :
    Identification Tests
    S
    trengt
    h
    E
    s
    timate
    Miniatu
    r
    e V
    a
    ne Tests
    Passing
    (ksf)
    (ksf)
    Li
    quid
    P
    l
    astic
    Moisture
    Submerged
    No
    .
    S•mp
    l
    e
    D
    e
    pth
    Liquidity
    Limit
    limit
    Content
    Unit Weigh
    t
    20
    0
    No
    .
    (ft)
    I
    n
    dex
    (
    %
    )
    (
    '!.
    )
    r/,)
    (pcf)
    Sieve
    Penet
    r
    ometer
    Torvane
    Undisturbed
    Remolded
    Residual
    1
    0.30
    2
    0.80
    58
    0
    .
    24
    3
    1.30
    28
    58
    24
    0.25
    0
    .1
    7
    3
    1.30
    27
    0.07
    3
    1.30
    2
    .
    01
    22
    18
    26
    4
    5.00
    23
    58
    5
    5
    8
    .
    00
    22
    58
    5
    6
    10.00
    24
    49
    16
    7
    14
    .
    00
    25
    6
    1
    4
    8
    15
    .
    50
    46
    56
    20
    9
    19
    .
    00
    56
    1
    0
    20
    .
    00
    33
    52
    10
    20.00
    1.46
    25
    18
    29
    11
    24.00
    59
    12
    25
    .
    00
    35
    66
    13
    29.00
    14
    29.50
    36
    52
    15
    30.00
    0
    .
    09
    15
    30.00
    4.7
    5
    23
    1
    9
    39
    57
    0.42
    0.42
    16
    34
    .
    00
    0.60
    17
    3
    4
    .
    50
    42
    51
    18
    35.00
    .
    93
    43
    13
    41
    0.40
    0.46
    NOT
    ES
    :
    TY
    PE
    O
    FTE
    S
    T
    TY
    PE
    O
    F F
    AILUR
    E
    U
    - Unconfined Com
    pr
    es
    s
    ion
    A- Bulge
    UU- U
    n
    conso
    lid
    a
    t
    e
    d-
    Und
    r
    ai
    n
    ed Triaxia
    l
    B
    -
    Sing
    l
    e Shear Plane
    CU
    -
    Co
    n
    solidated-Undrained Triaxial
    C - Mu
    l
    tiple Shear Pla
    n
    e
    D
    -
    Vertical F
    r
    act
    ur
    e
    Drawn By:
    f"'=
    c'
    I
    Date:
    '7/S-
    IP.S
    0201
    -6
    505-1
    05-Se
    p
    -2008
    0fer. #5)
    Texas Offsho
    r
    e Port System
    .
    SPM
    #1 Anchor Leg #2
    A-59
    Galves
    t
    on
    Compressi
    o
    n Tests
    Moisture
    Confining
    Undi
    s
    turbed
    Remolded
    t,o
    Submerged
    F:ailunt
    Type
    Content
    Pressure
    Strength
    St~ngth
    Strain
    Unit Weight
    Strai
    n
    T
    y
    p
    e
    of
    Test
    ,
    ~.
    ,
    (psi)
    (ksf)
    (ks!)
    ('!.
    )
    (pcf)
    (
    '
    !.
    )
    Failure
    u
    u
    33
    120
    0.47
    2.4
    51
    14
    A
    Plus Sig
    n
    s [+
    ]
    de
    n
    ote tests w
    h
    ich exceeded the
    ca
    p
    aci
    t
    y
    of the meas
    ur
    ing device
    .
    NP= Non Plas
    t
    ic Material

    alt
    alt
    I
    @
    :;o
    CD
    't:l
    0
    ::1-
    z
    ~
    0
    N
    0
    -
    Cl)
    01
    0
    01
    Checke
    d B
    y: J'9{,J
    A
    p
    proved By:
    ~
    ....
    Summary of Test Results
    Da
    t
    e:
    9/s-;'cJJY
    Da
    t
    e:
    ~
    #;'/-
    J
    ob N
    o
    .
    :
    B
    o
    rin
    g
    :
    Bl
    o
    ck
    :
    A
    r
    ea
    :
    Id
    enti
    fic
    ation Te
    s
    ts
    S
    trength
    Es
    tim
    a
    te
    Min
    i
    ature
    Va
    ne
    T
    es
    ts
    Passing
    (ksf)
    (ksf)
    Liquid
    Plasti
    c
    Moisture
    Submerged
    No.
    Sample
    Depth
    Liquidity
    Limit
    Li
    m
    it
    C
    ontent
    U
    nit Weight
    200
    N
    o.
    (II)
    I
    n
    dex
    ('/,)
    (%
    )
    ('
    /,
    )
    (pcf)
    S
    i
    eve
    Pe
    n
    etrome
    t
    er
    Torva
    n
    e
    U
    n
    disturbed
    Remolded
    Residual
    1
    9
    39.00
    0.48
    20
    39
    .
    50
    2
    0
    39.50
    0
    .
    20
    21
    40.00
    1.07
    36
    14
    37
    0.70
    0.71
    22
    44
    .
    00
    0.98
    23
    44
    .
    50
    37
    0
    .
    27
    23
    44
    .
    50
    46
    5
    0
    2
    4
    45
    .
    00
    .67
    63
    15
    47
    0
    .
    94
    1.
    1
    4
    25
    49.00
    1
    .00
    2
    6
    49
    .
    50
    26
    49
    .
    50
    0.31
    27
    50.00
    .60
    59
    15
    41
    0.94
    1.37
    28
    54
    .0
    0
    1.00
    29
    54
    .
    50
    4
    1
    45
    29
    54.50
    48
    0.26
    3
    0
    55.00
    .77
    55
    15
    46
    1.00
    1.42
    31
    59
    .
    00
    1
    .
    30
    32
    59.50
    0.32
    3
    2
    59.50
    3
    3
    60.00
    .
    5
    8
    67
    1
    6
    45
    1.30
    1.
    53
    34
    63
    .
    50
    45
    35
    64.00
    4
    6
    1
    .
    98
    NOTE
    S:
    TY
    P
    E
    OF
    TE
    S
    T
    TYP
    E
    O
    F
    FAI
    L
    U
    RE
    U
    -
    U
    n
    co
    nfin
    ed Compression
    A
    - Bul
    ge
    UU
    -
    Uncons
    o
    lidat
    e
    d
    -U
    ndrai
    n
    ed T
    r
    iaxial
    B
    -
    Si
    n
    g
    l
    e Shea
    r Pl
    ane
    CU- Co
    n
    solidated
    -
    Undrained
    T
    riaxial
    C - M
    ult
    iple Shea
    r
    Pla
    n
    e
    D
    - Ve
    rt
    ical
    F
    rac
    t
    ure
    Dr
    aw
    n B
    y:
    "'1(;,,.,,
    .,,/
    Date:
    q/:,
    /t:JF
    0201-6505-1
    0
    5
    -Se
    p
    -
    2
    0
    0
    8
    0/er. #5)
    T
    exas Offshore Port Syste
    m
    , S
    P
    M #
    1
    A
    n
    chor
    L
    eg #2
    A-59
    Ga
    l
    v
    e
    ston
    Co
    m
    p
    ression Tests
    Moisture
    Confining
    Undisb.lrbed
    Remo1ded
    e,.
    Submerge
    d
    Fai
    l
    ure
    T
    ype
    Content
    P
    ressure
    Strength
    Strength
    Stra
    in
    Unit Weight
    Strai
    n
    T
    ype
    of
    T
    est
    (
    '
    !,)
    (psi
    )
    (ks!)
    (ksf)
    (
    Y,J
    (
    p
    ct)
    (
    '/,)
    Failure
    uu
    37
    120
    0.42
    2.3
    47
    17
    A
    uu
    43
    120
    0.86
    2.0
    47
    7
    A
    uu
    46
    120
    0.50
    1.8
    46
    12
    A
    uu
    42
    120
    0.90
    0.5
    4
    6
    3
    AC
    uu
    46
    1
    1
    9
    1.
    00
    1.
    2
    48
    4
    c
    I
    P
    lus Sig
    n
    s [+]
    d
    e
    no
    te tests
    w
    hi
    c
    h
    exceeded the
    capac
    it
    y
    of t
    h
    e
    m
    easuring dev
    i
    ce.
    N
    P
    =
    Non Plast
    i
    c Mate
    ri
    a
    l
    ~
    if
    I

    alt
    alt
    alt
    J-
    0.