Appendix B Geotechnical Laboratory Test Results€¦ · · 2016-11-17Appendix B Geotechnical Laboratory Test Results . Appendix B Geotechnical Laboratory Test Results X: ... Report:

Appendix B

Geotechnical Laboratory Test Results

Appendix B Geotechnical Laboratory Test Results

X:\X_WATER\SAN CLEMENTE DAM REMOVAL - 26816781\GEOTECHNICAL\GDR REPORT\FINAL_GDR MAY 2010.DOC\13-MAY-10\\ B-1

This appendix presents the results of rock and soil laboratory testing completed as part of the geotechnical investigations. A summary of the results of the laboratory tests completed in the borings is presented in Table B-1. Results of the laboratory tests are also presented on the individual boring logs at the corresponding sample locations in Appendix A.

B.1 ROCK CORE TESTING The recovered rock core samples were visually classified and evaluated with respect to rock type and strength according to the classification criteria in Appendix A. The laboratory program for the rock samples from core borings consisted of unconfined compression tests. The URS Pleasant Hill performed the unconfined compression testing.

B.1.1 Unconfined Compression Strength Unconfined compression strength (UCS) testing was conducted to assess rock strength. The testing was performed on 4 samples obtained from borings CB-1 and CB-2. The testing was performed in general accordance with ASTM D2938, and all samples were prepared in accordance with ASTM D4543. At the time of testing, the bulk density of each core sample for unconfined compression test was measured. Stress-strain measurements were also plotted for the UCS tests completed by URS. Results of the UCS tests are presented in Table B-1.

B.2 SOIL TESTING Laboratory tests were performed on soil samples collected from the rotary wash borings and test pits. The materials encountered in the field were visually classified and evaluated with respect to consistency, moisture content, plasticity, and grain size distribution. The samples were returned to URS’ laboratory for further examination and testing. The visual classifications were then confirmed by performing moisture content, gradation analyses and evaluating the plasticity characteristics of representative samples of the soils. Results of laboratory testing are shown at the corresponding sample locations on the boring logs (Appendices A).

B.2.1 Moisture Content Moisture content determinations were performed on soils encountered in the borings. These tests were conducted in accordance with ASTM D2216. The results of the individual tests are presented in the corresponding logs in Appendices A, at the respective locations of the samples and on Table B-1 in this Appendix.

B.2.2 Atterberg Limits Liquid limits (LL) and plastic limits (PL) were measured on one sample using the procedure in ASTM D4318. This sample was non-plastic. The results of these tests are presented on the corresponding log in Appendices A and in Table B-1.

Appendix B Geotechnical Laboratory Test Results

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B.2.3 Gradation Analyses Gradation analyses were performed on samples to evaluate the percentages of gravels, sands, and/or fines (minus No. 200 sieve). The tests were performed in accordance with the procedure in ASTM D422, and the results are presented in Figures B-1 through B-6 for the borings. In addition, hydrometer tests were performed on 6 samples to determine the percentage of silt and clay. The results of the sieves are presented in Table B-1.

Results of the gradation analyses completed on the test pits are shown following the Figure B-6.

B.2.4 Corrosion Analyses Corrosion testing was performed by CERCO Analytical in Concord, CA on soil samples from the two test pits. The samples were tested for redox potential, pH, resistivity (100 percent saturation), sulfides, chlorides, and sulfates. The corrosion test results are presented following the gradation analyses for the test pits in this appendix.

6

RW-2

55 38 7

RW-3 1 4-5.5

477.0

SP

52.5-54

92 2

RW-3 3 14-15.5 515.5 SP 0

525.5

34-35.5

38

24-25.5 505.5 SP 1 94 5

GP-GM

7

RW-3

495.5 OL 0 33 67 13

RW-2 11

RW-2

0

92.8 41.6

RW-3 9-3 40-40.5 490.0 SM

96

43.5

36.5-37

64 36 5

RW-3 11 49-50.5 480.5

CB-1

93.5

29-30.5

5

4 19-20.5 510.5 SP 3 94 3

PT

6

493.5

500.5 SP 2 95 4

RW-3 8-3

4

RW-3

151.5

5

165.2 7991

CB-2 R14 48-48.6 542.0

[Rock]

1.0

547.0

1479

RW-1 2 9-10.5 520.5 SP 1 96

[Rock]

35-35.9

R34 108.3-109 511.7 [Rock] 0.1 163.1 13802

0.3

R10

3

555.0 [Rock] 0.3 168.7 1475

CB-2 R13 43-43.8

CB-2

79

42 50 7

RW-2 1 4-5.5 525.5

3

19

51-52.3

2

RW-2 2 9-10.5 520.5 SP 0 95

SW

495.5

58

14-15.5 515.5 SM 0 83 16

RW-1

SP-SM

34-35.5

478.5

OL 0 29 71 15

RW-1 10

RW-1

7

PL

RW-5

In SituWater

Content,%

Sand,%

SUMMARY OF SOIL AND ROCK LABORATORY DATA

USCSGroupSymbol

Atterberg Limits

PIGravel,%

SP

49-50.5 480.5 ML 0 26 74

< 5µ,%

In SituDry UnitWeight,

pcf

San Clemente Dam RemovalMonterey County, California26816781.00130

Sample Information

16

Rep

ort S

OIL

_1_P

OR

TRA

IT_M

U_U

C;

OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

BoringNumber

UnconfinedCompressiveStrength ofRock, psi

< #200,%

Elevation,feet MSL

11

Depth,feet

Sheet 1 of 1

Sieve and Hydrometer

SampleNumber

TABLE B-1

LL

500.5

10

510.5 SP 2 95 3

RW-4

4

29-30.5

RW-4

SP-SM 2 93 5

RW-4 10-2 46-46.5 484.0

6

RW-4

4

RW-4 1 4-5.5 525.5 SP 3

19-20.5

2

70.6

3 14-15.5 515.5 SM 0 55 45 7

95

95

1 96 2

RW-5 5 24-25.5 505.5

OL

0

14-15.5

5

RW-5 7 34-35.5 495.5 SP-SM 0 89

SP

4-5.5

NOTE: The laboratory tests were performed in general accordance with the following standards:Water Content - ASTM Test Method D2216Dry Unit Weight - ASTM Test Method D2937Particle Size Distribution Analysis by Mechanical Sieving and Hydrometer - ASTM Test Method D422Atterberg Limits - ASTM Test Method D4318Unconfined Compressive Strength of Rock - ASTM Test Method D2938

0 25 75 13 NP NP NP

SP

1

515.5

525.5 SP 10 87 2

RW-5 3

46.1

RW-5

MH or OH

PLASTICITY CHART

PLA

STIC

ITY

IND

EX, P

I

"A" LINE

LIQUID LIMIT, LL

ML or OL

60

CL-ML

CL or OL

110

CH or OH

80

0

10

20

30

40

50

80

70

1000 10 20 30 40 50

26816781.00130

70 90

60

SampleNumber LLDepth

(feet)Test

Symbol PLBoringNumber

RW-4 46-46.5 46.1 Organic Silt with Sand (OL)

Monterey County, CaliforniaSan Clemente Dam Removal

Figure B-1Rep

ort:

ATT

ER

BE

RG

_PLO

T_8

PTS

HW

C;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-04

Classification

NPNPNP

WaterContent (%) PI

10-2

3/44

PER

CEN

T R

ETA

INED

90

0.01

80

100

0.0010.1110100

60

50

70

0

10

20

30

40

ClassificationSampleNumber

BoringNumber

Depth(feet) %G %S %F

3

0

0

42

19

96

83

29

79

16

71

7

2

50

Symbol

Rep

ort:

SIE

VE

_5_C

UR

VE

S_O

AK

_GS

F;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-02

Well-Graded Sand with Gravel (SW)

0

10

20

30

40

50

60

70

80

90

10 200

HYDROMETER

8

SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS

1.5 3/8 50

Figure B-2

3

SILT OR CLAY

1

PER

CEN

T PA

SSIN

G

San Clemente Dam Removal

4

GRAVEL SAND

fine

2

PARTICLE SIZE (mm)

U.S. STANDARD

6

medium

RW-2

coarse

9-10.5

14-15.5

34-35.5

51-52.3

4-5.5

RW-1

RW-1

RW-1

2

3

7

10

1

Poorly Graded Sand (SP)

Silty Sand (SM)

Organic Silt with Sand (OL)

Poorly Graded Sand with Silt and Gravel (SP-SM)

RW-1

301

26816781.00130Monterey County, California

100

100

fine

16

PARTICLE SIZEDISTRIBUTION CURVES

BO

ULD

ERS

12

CO

BB

LES

coarse

4100

0.1

PER

CEN

T R

ETA

INED

3/4

0.01110100

80

70

0.001

90

0

10

20

30

40

50

60

SampleNumber

BoringNumber

Depth(feet) %G %S %FSymbol

51

0

55

6

95

94

33

38

5

67

7

2

Rep

ort:

SIE

VE

_5_C

UR

VE

S_O

AK

_GS

F;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-03

92

Classification


3/82 200

HYDROMETER

80

10

20

30

40

50

60

70

80

90

SIEVE OPENING IN INCHES50

Figure B-3

3

SILT OR CLAYcoarse

0

U.S. STANDARD SIEVE NUMBERS


4

GRAVEL SAND

medium

1

PARTICLE SIZE (mm)

U.S. STANDARD

6 1.5

fine

2

10

24-25.5

34-35.5

52.5-54

4-5.5

RW-2

RW-2

RW-2

RW-3

5

7

11

1



Sandy Organic Silt (OL)

Poorly Graded Gravel with Silt and Sand (GP-GM)

PER

CEN

T PA

SSIN

G

RW-2



100

100

fine coarse

9-10.5

30

BO

ULD

ERS

12

CO

BB

LES

16

4100

0.1

PER

CEN

T R

ETA

INED

3/4

0.01110100

80

70

0.001

90

0

10

20

30

40

50

60

SampleNumber

BoringNumber

Depth(feet) %G %S %FSymbol

33

2

0

38

96

94

95

64

4

4

36

4

Rep

ort:

SIE

VE

_5_C

UR

VE

S_O

AK

_GS

F;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-03

58

Classification

Poorly Graded Sand with Gravel (SP)

3/82 200

HYDROMETER

80

10

20

30

40

50

60

70

80

90


Figure B-4

3

SILT OR CLAYcoarse

0



4

GRAVEL SAND

medium

1

PARTICLE SIZE (mm)

U.S. STANDARD

6 1.5

fine

3

10

19-20.5

29-30.5

40-40.5

49-50.5

RW-3

RW-3

RW-3

RW-3

4

6

9-3

11




Silty Sand (SM)

PER

CEN

T PA

SSIN

G

RW-3



100

100

fine coarse

14-15.5

30

BO

ULD

ERS

12

CO

BB

LES

16

50

40

30

20

0

60

PER

CEN

T R

ETA

INED

10

100 10 1 0.1 0.01 0.001

4

70

3/4100

90

80

PER

CEN

T PA

SSIN

G

ClassificationSampleNumber

BoringNumber

Depth(feet) %G %S %F

2

0

2

2

0

95

55

95

25

45

3

5

75

93

Symbol

Rep

ort:

SIE

VE

_5_C

UR

VE

S_O

AK

_GS

F;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-04

Organic Silt with Sand (OL)

0

10

20

30

40

50

60

70

80

90

10 200

HYDROMETER

8

SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS

1.5 3/8 50

Figure B-5

3

SILT OR CLAY

3


4

GRAVEL SAND

fine

2

PARTICLE SIZE (mm)

U.S. STANDARD

6

medium

RW-4

coarse

4-5.5

14-15.5

19-20.5

29-30.5

46-46.5

RW-4

RW-4

RW-4

1

3

4

6

10-2


Silty Sand (SM)


Poorly Graded Sand with Silt (SP-SM)

RW-4

301


100

100

fine

16


BO

ULD

ERS

12

CO

BB

LES

coarse

3/44

1

PER

CEN

T R

ETA

INED

0.0010.110100

80

0.01

100

0

10

20

30

40

50

60

70


90

SampleNumber

BoringNumber

Depth(feet)

10

%G %S %FSymbol

2

PER

CEN

T PA

SSIN

G

0

0

0

87

96

95

89

2

5

11

74

Rep

ort:

SIE

VE

_5_C

UR

VE

S_O

AK

_GS

F;

File

: OA

K_S

CLE

MD

AM

.GP

J;

11/2

1/20

08

RW

-05

26

Classification

200

HYDROMETER

8


1

3/8


Figure B-6

3

SILT OR CLAYcoarse

100

10

20

30

40

50

60

70

80

90

PARTICLE SIZE (mm)

4

GRAVEL SAND

medium fine

U.S. STANDARD

6 1.5

26816781.00130

1

2

14-15.5

24-25.5

34-35.5

49-50.5

RW-5

RW-5

RW-5

RW-5

3

5

7

10




Poorly Graded Sand with Silt (SP-SM)

Silt with Sand (ML)

RW-5

PARTICLE SIZEDISTRIBUTION CURVESMonterey County, California

100

100

fine coarse

4-5.5

301

BO

ULD

ERS

12

CO

BB

LES

16

Documents

Appendix B Geotechnical Laboratory Test Results€¦ · · 2016-11-17Appendix B Geotechnical Laboratory Test Results . Appendix B Geotechnical Laboratory Test Results X: ... Report: