2008-07-10_REVISION - M1978143 ‎(4)‎

• Permit No: M1978143
• IBM Index Class Name: REVISION
• Doc Date: 7/10/2008
• Doc Name: Preliminary adequacy review response
• From: Environment, Inc.
• To: DRMS
• Type & Sequence: AM1
• Email Name: SSS
• Media Type: D
• Archive: No

2.6
TABLE 1 - TYPICAL SOIL AND ROCK PROPERTIES
Description Unit weight Friction Copes ion
(Saturated/dry) angle
We Malerial Zblft3 kNIM3 degrees lb/rt2 kPa
Loose sand. uniform grain size 118/90 19/14 28-34"
Dense sand, uniform grain site 130/109 21/17 32-40"
b oose sand, mixed grain size 124/99 20/16 34-40*
Dense sand, mixed grain size 135/116 21/18 38-46*
"
a ravel, uniform grain size 140/130 22/10 34-31
v and and gravel, mixed grain size 120/110 19/17 48-45"
u

' o Basalt 140/110 22/17 40-50"
c

?
Chalk
80/62
13/10
30-40"
Granite 125/110 20/17 45-50"
s,
Limestone
120/100
19/16
35-40"
Sandstone 110/80 11113 35-45*
y

.?
Shale
125/100
20/16
30-35"

Soft bentonite 80/30 13/6 7-13 200-400 10-20
Very soft organic clay 90/40 14/6 12-16 200-600 10-30
Soft, slightly organic clay 100/60 16/10 22-27 400-1000 20-50
a, Soft glacial clay 110/76 17/12 27-32 600-1500 30-70
Stiff glacial clay 130/105 10/17 30-32 1500-3000 70-150
Glacial till, mixed grain size 145/130 23/20 32-35 3000-5000 150-250
N Hard igneous rocks - 16o to 190 25 to 30 35-45 720000- 35000-
c granite, basalt, porphyry 1150000 55000
' Metamorphic rocks
160 to 180
25 to 28
30-40 400000- 20000-
800000 40000
quartrite, gneiss. slate
o Hard sedimentary rocks - 200000- 10000-
o? 150 to 180 23 to 28 35-45 600000 30000
limestone, dolomite, sandstone
Soft sedimentary rock -
110 to 150
17 to 23
25-35 20000 -
400000 1000-
20000
sandstone, coal, chalk, shale
* Higher friction angles in cohesionless materials occur at low confining or normal
stresses as discussed in Chapter 5.
** For intact rock, the unit weight of the material does not vary significantly between
saturated and dry states with the exception of materials such es porous sandstones.
U39F D