GEOTECHNICAL CORE DRILLING, SOIL SAMPLING, AND LABORATORY TESTING
USACE, Galveston District W912HY‐13‐D‐0001
Government & Industry in Harmony with the Environment
1.0
Introduction
Task Order DY08, Core Drilling, Soil Sampling, and Laboratory Testing for the Port Arthur
Resident Office Shoreline Stabilization project, Port Arthur, Texas, was awarded to Quaternary
Resource Investigations, LLC (QRI) on November 19, 2013 (Notice to Proceed (NTP) received on
November 29, 2013). The primary purpose of this Task Order was to obtain geotechnical
information for shoreline stabilization at the Port Arthur Resident Office, Jefferson County,
Texas. A total of 5 borings, numbered 13‐1001 through 13‐1005, were drilled to depths of 80
and 100 feet as shown on
Table 1
below.
2.0
Borings
Below is a table summarizing the 5 borings drilled under Task Order DY08. The table includes
Boring Number, Investigation Feature, Depth (ft), and a description of unusual subsurface
conditions or difficulties in drilling that were encountered (if any). Boring Summary Sheets and
Field boring logs (
Appendix A
) should be referenced for information concerning each boring.
Table 1
Boring
Investigation Feature
Depth (ft)
Conditions / Difficulties Encountered
13‐1001
East Bank SNWW PARO
100
See boring log
13‐1002
East Bank SNWW PARO
80
See boring log
13‐1003
East Bank SNWW PARO
100
See boring log
13‐1004
East Bank SNWW PARO
80
See boring log
13‐1005
East Bank SNWW PARO
100
See boring log
Final gINT Boring Logs are included in
(
Appendix B
).
3.0
Test data
As per the Table of Required Services, test assignments were provided by the USACE POC as
listed in Table 2. All tests were performed by QRI’s contract laboratory, Terracon Consultants,
Inc., on portions of the samples that were considered representative of the predominant
material composition of the overall sample. The laboratory recorded on the final summary
sheets the results of unit dry weight tests, moisture content tests, and visual classifications
incidental to performing unconfined compression tests, triaxial tests (including UU and CU
tests), and other tests. Results of moisture content testing and visual classifications incidental
to performing moisture content, unit dry weight, Atterberg limits, and sieve analyses, were also
included on the final test summary sheets provided by the laboratory. A complete set of
BORING ID:
BORING TYPE:
DEPTH:
ELEVATION:
X (US SURVEY FT):
3574785.97
Y (US SURVEY FT):
13898080.74
DEPTH TO WATER:
11.8'
7.63'
PORT ARTHUR RESIDENT OFFICE
BORING SUMMARY SHEET
13-1004
Continuous Sampling
80'
4
7.6315'
4
4
4
3/8 4 10 40 100 200 gravel sand silt clay
sieve 200
C Wc γdC Wc γd C φ Wc C φ c̕ φ̕Wc γd
ft tsf tsf bl/ft % % % %%%%%% % % % % % %pcfksf % pcf ksf%pcf ksf
º
% ksf
º
ksf
º
%pcf
SUMMARY TABLE OF LABORATORY TEST DATA
Project Name: Port Arthur Resident Office
Client: QRI
Terracon Project # : 92135321
Boring
Depth
Field Tests
Atterberg Limits
Grain Size Analysis
USCS
Symbol
PP
TV
SPTn
LL
PL
Symbol
Symbol
Symbol
Symbol
Wc
γd
Strenght Tests
Soil Particle Content
Unconfined Compression
UU Triaxial Test
Direct Shear
CU Triaxial Test
PI
% by weight passing sieve
0-2
2.4
24
2-4
2.4
23
4-6
1.7
33
6-8
1.5
49 21 28
100100 95
0 5
95 CL
37
8-10
1.6
28
10-12
0.75 2.6
53 17 36
100 100
95
0 5
95 CH
31 92
0.36 31 92
CH**
12-14
2.2
23
109
14-16
2.4
62
23
39
CH*
27
100
2.07
27
100
CH**
16-18
2.75
26
95
18-20
2.9
24
20-22
3.75
36 17 19 10099 99 99
87
1 12
87 CL
23
22-24
2.2
20
108
24-26
0
29
26-28
‐
43
100
8
0
92
8
SP-SM*
24
28-30
1.75
11
29
30-32
1.75
54 21 33
100 100 100
99
0 1
99 CH
30 93
0.89 30 93
CL**
32-34
2.1
35
90
34-36
1.7
31
36-38
1.7
40 18 22
100 98
0 2
98 CL
38
38-40
1.5
36
40-42
1.4
37
42-44
1.0
50
20
30
100
100
100
100
0
0
100
CH
38
87
1.15
38
87
CH**
44-46
1.6
40
46-48
1.9
48
48-50
1.8
55
50-52
1.1
94
27
67
CH*
50
71
0.91
50
71
CH**
52-54
1.6
44
13-B1004
54-56
1.9
56
56-58
2.0
53
58-60
1.7
37
60-62
1.6
57
21
36
CH*
33
87
1.01
33
87
CH**
62-64
1.75
50
64-66
1.75
96
29
67
CH*
56
66-68
1.7
47
68-70
1.9
45
70-72
1.8
93 27 66
100 99
0 1
99 CH
53
72-74
2.0
55
74-76
2.0
46
76-78
2.2
53
78-80
1.7
81
25
56
CH*
48
72
1.07
48
72
CH**
4
Moisture/Density Determinations- ASTMD
2937
l:>roject Name: Port Arthur Resident Office - USACE
Boring No.
Depth (ft)
Diameter (mm)
Height(mm}
Sample Wt.(g)
Tare No.
Wet
Wt.
+ Tare
D
Wt.+ Tare
Tare
Wt. (g)
Dry Soil Wt. (g
%Moisture
Dry Unit
Wt. (
pcf)
Discri tion
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