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Consolidation Rate
(Holtz & Kovacs, An Introduction to Geotechnical Engineering, 1981)
Coefficient of volume change∆∆ ′
Figure 8.4a
(Holtz & Kovacs, An Introduction to Geotechnical Engineering, 1981)
Coefficient of compressibility∆∆ ′
Figure 8.4b
'
'v = ' zuss = w z
w– sat
v = (' + wz = sat z
SAND
CLAY
SAND
'v = ' zuss = w z
–
v = (' + wz = sat z
SAND
CLAY
SAND
p p
ue = p
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(after Lambe & Whitman, Soil Mechanics, 1969)
3.6Time (years)
2.13
Settl
emen
t (fe
et)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
(Lambe & Whitman, Soil Mechanics, 1969)
0 t1 Time
Load
1For 0 t t
v2
dr
cT t 2H
avg c1
ts U st
1For t t
v1 2
dr
cT t t 2H
avg cs U s
(after Lambe & Whitman, Soil Mechanics, 1969)
3.6Time (years)
2.13
Settl
emen
t (fe
et)
13 mo.6.5 mo. 26 mo. 39 mo.
t10