· LBNL GENERAL PURPOSE LAB CENTRAL PLANT Berkeley, California ... LL - Liquid Limit (%) (ASTM D...
Transcript of · LBNL GENERAL PURPOSE LAB CENTRAL PLANT Berkeley, California ... LL - Liquid Limit (%) (ASTM D...
PROJECT NO. DATEFIGURE
ALAN KROPP& ASSOCIATES
Geotechnical
Consultants
KEY TO EXPLORATORY BORING LOGS
22335-12C May 2010
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SILTS AND CLAYSSAND GRAVEL
COBBLES BOULDERSFINE MEDIUM COARSE FINE COARSE
200 40 10 4 3/4" 3" 12"U. S. STANDARD SERIES SIEVE CLEAR SQUARE SIEVE OPENINGS
GRAIN SIZES
GROUPSYMBOL
SECONDARY DIVISIONS
GROUP NAMECRITERIA *GW
GP
GM
GC
SW
SP
SM
SC
CL
ML
OL
CH
MH
OH
PT
PRIMARY DIVISIONS
CLEAN GRAVELSLESS THAN5% FINES
GRAVELS WITHFINES - MORE
THAN 12% FINES
CLEAN SANDSLESS THAN5% FINES
SANDS WITHFINES - MORE
THAN 12% FINES
INORGANIC
ORGANIC
INORGANIC
ORGANIC
CO
AR
SE
-GR
AIN
ED
SO
ILS
MO
RE
TH
AN
50%
RE
TA
INE
D O
N N
O.2
00 S
IEV
E
FIN
E-G
RA
INE
D S
OIL
S50
% O
R M
OR
E P
AS
SE
S T
HE
NO
.200
SIE
VE
Well-graded gravel
Poorly-graded gravel
Silty gravel
Clayey gravel
Well-graded sand
Poorly-graded sand
Silty sand
Clayey sand
Lean clay
Silt
Fat clay
Elastic silt
Peat
Organic Clay & Organic Silt
Organic Clay & Organic Silt
Cu ≥ 4 AND 1 ≤ Cc ≤ 3 A
Cu < 4 AND/OR 1 > Cc > 3
FINES CLASSIFY AS ML OR MH
FINES CLASSIFY AS CL OR CH
Cu ≥ 6 AND 1 ≤ Cc ≤ 3
Cu < 6 AND/OR 1 > Cc > 3
FINES CLASSIFY AS ML OR MH
FINES CLASSIFY AS CL OR CH
PI > 7 AND PLOTS ON OR ABOVE "A" LINE
PI < 4 OR PLOTS BELOW "A" LINE
LIQUID LIMIT - OVEN DRIED
LIQUID LIMIT - NOT DRIED< 0.75
PI PLOTS ON OR ABOVE "A" LINE
PI PLOTS BELOW "A" LINE
PRIMARILY ORGANIC MATTER, DARKIN COLOR, AND ORGANIC ODOR
LIQUID LIMIT - OVEN DRIED
LIQUID LIMIT - NOT DRIED< 0.75
REFERENCE: Unified Soil Classification System (ASTM D 2487-06)
SOIL CLASSIFICATION CHART
A – Cu = D60/D100 & Cc = (D30)2 / (D10 x D60)
SYMBOLS
Bag Sample
Standard PenetrationTest Split Spoon(2-inch O.D.)
Modified CaliforniaSampler(3-inch O.D.)
Thin-walled SamplerTube (either Pitcher orShelby) (3-inch O.D.)
Rock Core
Groundwater Level
ABBREVIATIONS
INDEX TESTS
LL - Liquid Limit (%) (ASTM D 4318-05)
PI - Plasticity Index (%) (ASTM D 4318-05)
-200 - Passing No. 200 Sieve (%) (ASTM D 1140-00)
STRENGTH TESTS
PP - Field Pocket Penetrometer test of unconfined compressive strength (tsf)
TV - Field Torvane test of shear strength (psf)
UC - Laboratory unconfined compressive strength (psf) (ASTM D 2166-06)
TXUU - Laboratory unconsolidated, undrained triaxial test of undrained shear strength (psf)
(ASTM D 2850-03a)
MISCELLANEOUS
ATOD - At time of drilling
psf/tsf - pounds per square foot / tons per square foot
psi - pounds per square inch (indicates relative force required to advance Shelby tube sampler)
* Criteria may be done on visual basis, not necessarily based on lab testing
GRAVELSMORE THAN 50% OFCOARSE FRACTION
RETAINED ON NO.4 SIEVE
SANDS50% OR MORE OF
COARSE FRACTIONPASSES NO. 4 SIEVE
SILTS AND CLAYSLIQUID LIMIT LESS
THAN 50%
SILTS AND CLAYSLIQUID LIMIT 50%
OR MORE
HIGHLY ORGANIC SOILS
CONSOLIDATION OF SEDIMENTARY ROCKS; usually determined from unweathered samples. Largely dependent on cementation.
U = unconsolidated P = poorly consolidated M = moderately consolidated W = well consolidated
BEDDING OF SEDIMENTARY ROCK
Splitting PropertyMassiveBlockySlabbyFlaggyShaly or platyPapery
ThicknessGreater than 4.0 feet2.0 to 4.0 feet0.2 to 2.0 feet0.05 to 0.2 feet0.01 to 0.05 feetLess than 0.01 feet
StratificationVery thick-beddedThick-beddedThin-beddedVery thin-beddedLaminatedThinly laminated
FRACTURING
IntensityVery little fracturedOccasionally fracturedModerately fracturedClosely fracturedIntensely fracturedCrushed
HARDNESS
1. Soft - Reserved for plastic material alone.2. Low Hardness - Can be gouged deeply or carved easily by a knife blade.3. Moderately Hard - Can be readily scratched by a knife blade; scratch leaves a heavy trace of dust and is readily visible after the powder has been blown away.4. Hard - Can be scratched by a knife blade with difficulty; scratch produces little powder and is often faintly visible.5. Very Hard - Cannot be scratched by a knife blade; leaves a metallic streak
STRENGTH
1. Plastic - Very low strength.2. Friable - Crumbles easily by rubbing with fingers.3. Weak - An unfractured specimen of such material will crumble under light hammer blows.4. Moderately Strong - Specimen will withstand a few heavy hammer blows before breaking.5. Strong -Specimen will withstand a few heavy ringing hammer blows and will yield with difficulty only dust and small flying fragments.6. Very Strong -Specimen will resist heavy ringing hammer blows and will yield with difficulty only dust and small flying fragments.
WEATHERING - the physical and chemical disintegration and decomposition of rocks and minerals bynatural processes such as oxidation, reduction, hydration, solution, carbonation, and freezing and thawing.
D. Deep - Moderate to complete mineral decomposition; extensive disintegration; deep and thorough discoloration; many fractures, all extensively coated or filled with oxides, carbonates and/or clay or silt.M. Moderate - Slight change or partial decomposition of minerals; little disintegration; cementation little to unaffected. Moderate to occasionally intense discoloration. Moderately coated fractures.L. Little - No megascopic decomposition of minerals; little or no effect on normal cementation. Slight and intermittent, or localized discoloration. Few stains on fracture surfaces.F. Fresh - Unaffected by weathering agents. No disintegration or discoloration. Fractures usually less numerous than joints.
Size of Pieces in FeetGreater than 4.0 feet1.0 to 4.0 feet0.5 to 1.0 feet0.1 to 0.5 feet0.05 to 0.1 feetLess than 0.05 feet
ALAN KROPP& ASSOCIATES
Geotechnical
ConsultantsPROJECT NO. DATE
FIGURE 32335-12C May 2010
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
PHYSICAL PROPERTIES CRITERIA FOR ROCK DESCRIPTIONS
Looking Northwest toward Buildings 41 and 4 (in distance)
Looking Southeast toward Building 28 (in distance)
18.4
10.5
14.5
PP = 1.75 tsfLL = 77PI = 56
-200 = 81%
LOGGED BY: DI
DATE DRILLED: 4/16/10BORING DIAMETER: 4 inches
DRILL RIG: B-24, Solid Flight Auger SURFACE ELEVATION: 917.5 feet (see notes)
DEPTH TO GROUNDWATER: 31 feet (see notes)
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EXPLORATORY BORING LOG
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1 of 3 BORING AKA-52335-12CPROJECT NO.
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SHEETDATEMay 2010A
KA
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RIN
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233
5-12
C B
OR
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LO
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5 A
ND
6.G
PJ
AK
A_T
EM
PLA
TE
.GD
T
5/5/
10
[27]
30
[50/6"]
50/6"
23
CLAY, Lean - with silt and sand, dry tomoist
CLAY, Fat - with silt, trace coarse sand,dry to moist
VOLCANICS - deeply weathered, friableto weak, soft to low hardness, with angularfragments of weathered andesite
-plastic to friable
Dark Gray
Dark ReddishBrown to DarkBrown
Reddish Brown toGrayish Brown
Reddish Brownwith some VeryDark Gray
Mottled ReddishBrown, GrayishBrown and VeryDark Gray
Stiff
Very Stiff
CL
CH
BEDROCK
14.5
9.1
(3 days afterdrilling)
(ATOD)
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23
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26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
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2 of 3 BORING AKA-52335-12CPROJECT NO.
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SHEETDATEMay 2010A
KA
BO
RIN
G L
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5-12
C B
OR
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LO
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5 A
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6.G
PJ
AK
A_T
EM
PLA
TE
.GD
T
5/5/
10
41
50/3"
40
31
VOLCANICS - deeply weathered, friableto weak, low hardness, with angularfragments of weathered andesite
-23' harder drilling
-no recovery in sample barrel
-29' drilling is smoother
SILTSTONE - deeply weathered, friable,low hardness
Bottom of boring at 41.5 feet.
Reddish Brownwith some VeryDark Gray
Gray
BEDROCK
BEDROCK
NOTES:
1. Groundwater was encountered at approximately 38 feet at the time of drilling and was at a depth of about 31 feet 3 days afterdrilling was complete. (See report for discussion.)
2. Stratification lines represent the approximate boundaries between material types and the transitions may be gradual.
3. Penetration resistance values (blow counts) enclosed in brackets ([ ]) were recorded with a 3.0-inch O.D. Modified Californiasampler; these are not standard penetration resistance values.
4. Boring location levations were surveyed by LBNL subcontractor.
5. Approximate unconfined compressive strength values were recorded in the field using a pocket penetrometer. These values areshown on the logs and are preceded by the symbol "PP".
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EXPLORATORY BORING LOG
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(%
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3 of 3 BORING AKA-52335-12CPROJECT NO.
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SHEETDATEMay 2010A
KA
BO
RIN
G L
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233
5-12
C B
OR
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LO
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5 A
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6.G
PJ
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A_T
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.GD
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5/5/
10
26.1
16.8
15.5
89
103
PP = 2.5 tsfLL = 65PI = 46
-200 = 76%
LOGGED BY: DI
DATE DRILLED: 4/16/10BORING DIAMETER: 4 inches
DRILL RIG: B-24, Solid Flight Auger SURFACE ELEVATION: 925 feet (see notes)
DEPTH TO GROUNDWATER: (see notes)
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1 of 2 BORING AKA-62335-12CPROJECT NO.
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SHEETDATEMay 2010A
KA
BO
RIN
G L
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233
5-12
C B
OR
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LO
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5 A
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6.G
PJ
AK
A_T
EM
PLA
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.GD
T
5/5/
10
[23]
[39]
[67]
CLAY, Lean - with silt and sand (fine tocoarse grained), dry to moist
CLAY, Fat - with silt, trace coarse sand,dry to moist
VOLCANICS - deeply weathered, friable,soft to low hardness, with angularfragments of weathered andesite
Dark Gray to DarkReddish Brown
Dark ReddishBrown
Reddish Brown toDark Gray
Reddish Brownwith some Brownand YellowishBrown
Dark ReddishBrown with someGray and VeryDark Gray
Stiff
Stiff to Very Stiff
CL
CH
BEDROCK
17.8
13.7
NOTES:
1. No groundwater was encountered at the time of drilling and the boring was backfilled immediately after drilling. (See report fordiscussion.)
2. Stratification lines represent the approximate boundaries between material types and the transitions may be gradual.
3. Penetration resistance values (blow counts) enclosed in brackets ([ ]) were recorded with a 3.0-inch O.D. Modified Californiasampler; these are not standard penetration resistance values.
4. Boring location levations were surveyed by LBNL subcontractor.
5. Approximate unconfined compressive strength values were recorded in the field using a pocket penetrometer. These values areshown on the logs and are preceded by the symbol "PP".
SA
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RB
LO
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EXPLORATORY BORING LOG
SA
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33
34
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(%
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2 of 2 BORING AKA-62335-12CPROJECT NO.
LBNL GENERAL PURPOSE LAB CENTRAL PLANTBerkeley, California
SHEETDATEMay 2010A
KA
BO
RIN
G L
OG
233
5-12
C B
OR
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LO
GS
5 A
ND
6.G
PJ
AK
A_T
EM
PLA
TE
.GD
T
5/5/
10
[90]
41
50/6"
VOLCANICS - deeply weathered, friable,low hardness, with angular fragments ofweathered andesite
-friable to weak
Bottom of boring at 34.0 feet.
Mottled Gray,Olive Gray andReddish Brown
Mottled Gray andReddish Brown
BEDROCK
FILL
LOGGED BY: SS
DATE DRILLED: 5/19/09BORING DIAMETER: 4 7/8 inches
DRILL RIG: Fraste Multidrill XL, Rotary Wash SURFACE ELEVATION: 929.9 (see notes)
DEPTH TO GROUNDWATER: (see notes)
SA
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EXPLORATORY BORING LOG
SA
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1 of 5 BORING AKA-22335-12PROJECT NO.
LBNL B25 AREA PROJECTBerkeley, California
SHEETDATEMay 2009A
KA
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RIN
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OG
233
5-12
LB
NL
B25
AR
EA
AK
A 2
.GP
J A
KA
_TE
MP
LAT
E.G
DT
4/
1/1
0
[30]/3"
[50]/3"
[50]/4.5"
Asphalt Concrete - 2-inchesGRAVEL, Poorly Graded - sandy, wellcompacted, no plasticity, dry (RoadAggregate Base)
VOLCANICS - Rhyolite, moderatelyweathered, weak, breaks into indiscernablerubble during drilling, dry
Light Brown
Yellowish Brown
Medium Dense GP
BEDROCK
SA
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EXPLORATORY BORING LOG
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22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
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2 of 5 BORING AKA-22335-12PROJECT NO.
LBNL B25 AREA PROJECTBerkeley, California
SHEETDATEMay 2009A
KA
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233
5-12
LB
NL
B25
AR
EA
AK
A 2
.GP
J A
KA
_TE
MP
LAT
E.G
DT
4/
1/1
0
[50]/3"
83
75
-Andesite, moderately weathered, weak
-Rhyolite, with mineralization, hard,fractured, with weak granular weatheredrock matrix
Yellowish Brown
Grayish Greenwith Red
BEDROCK
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EXPLORATORY BORING LOG
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43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
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3 of 5 BORING AKA-22335-12PROJECT NO.
LBNL B25 AREA PROJECTBerkeley, California
SHEETDATEMay 2009A
KA
BO
RIN
G L
OG
233
5-12
LB
NL
B25
AR
EA
AK
A 2
.GP
J A
KA
_TE
MP
LAT
E.G
DT
4/
1/1
0
50/4.5"
72
50/5"
50/5"
50/4.5"
-clay lined fractures mixed with volcanicrock blocks, not continuous, brownish withmanganese staining
-Andesite, volcanics, very fine grained(Basalt?)
-Rhyolite, with mineralization, volcanics(Basalt?)
Grayish Greenwith Red
Greenish Brown
BEDROCK
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EXPLORATORY BORING LOG
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t)
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
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IST
UR
EC
ON
TE
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(%
)
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4 of 5 BORING AKA-22335-12PROJECT NO.
LBNL B25 AREA PROJECTBerkeley, California
SHEETDATEMay 2009A
KA
BO
RIN
G L
OG
233
5-12
LB
NL
B25
AR
EA
AK
A 2
.GP
J A
KA
_TE
MP
LAT
E.G
DT
4/
1/1
0
50/4.5"
50/3.5"
68
-hard, heavily weathered volcanics(Basalt?)
-0.2 to 0.1 foot pieces of subangular clastsof fractured volcanic Basalt from 72.5 to 74feet
-weathered with iron oxide zones alongfractures, no continuous clay seams,fractured Basalt 0.2 to 0.3 foot diameter,moist to wet
-becomes more competent with depth,larger fracturing blocks, no thick or laterallycontinuous clay seams
-Andesite, tuffacious in spots, flecks ofBasalt, deeply weathered, quartz veins,Rhyolite, larger clasts than above
-more competent, fine grained
Greenish Brown
Black
Dark GrayishBrown withReddish Overtone
BEDROCK
NOTES:
1. Groundwater levels were obscured due to rotary was drilling method (See report for discussion).
2. Stratification lines represent the approximate boundaries between material types and the transitions may be gradual.
3. Penetration resistance values (blow counts) enclosed in brackets ([ ]) were recorded with a 3.0-inch O.D. Modified Californiasampler; these are not standard penetration resistance values.
4. Elevations were determined from survey performed by LBNL subcontractor.
SA
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EXPLORATORY BORING LOG
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89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
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5 of 5 BORING AKA-22335-12PROJECT NO.
LBNL B25 AREA PROJECTBerkeley, California
SHEETDATEMay 2009A
KA
BO
RIN
G L
OG
233
5-12
LB
NL
B25
AR
EA
AK
A 2
.GP
J A
KA
_TE
MP
LAT
E.G
DT
4/
1/1
0
-becomes fractured and brecciated, smallerclasts
-deeply weathered
SILTSTONE/CLAYSTONE - with volcanicgravels
SILTSTONE - little weathering, weak,slightly fractured
-competent and hard
-massive
CLAYSTONE - friable to weak,moderately fractured along planes, someharder clasts of calcite
Bottom of boring at 106.2 feet.
Dark GrayishBrown withReddish Overtone
Reddish Brown
Dark Bluish Gray
Greenish Gray
Bluish Gray
BEDROCK
BEDROCK
BEDROCK
BEDROCK