BS 1377 Part 6 1990
Hydraulic cell consolidation test : calculations
Location
Job Ref:
BH No.
Soil Description
Sample No.
Depth
Test method
BS1377: Part 6: 1990 :
3.5,3.6,3.7,3.8*
Date
Drainage conditions
Pore pressure measurement location
Cell no.
Loading conditions
Pressure system no.
Specimen diameter
Dmm
m
v
calculated from change in height/volume*
Initial height
Ho mm
c
v
calculated from pore pressure dissipation
Factor for coeffient
of consolidation
Initial Voids ratio
eo
Initial time plot
*
square root time plot
spcial power curve plot
Stage
Effective
Cumulative
Consolidation
Voids ratio
Voids
Incremental
Coef-
Time
Time
Consolidation
no.
stress kPa
compression
height
change
ratio
change
ficient
height
Value
Incre-ment
cumu-lative
Incre-ment
height
volume
s
'
ds
'
D
H
H
D
V
d
e
e
d
H
d
V
mv
t
50
/t
90
H
c
v
mm
mm
cm
3
mm
mm
3
m
2
/MN
min
mm
m
2
/year
Operator
Checked
Approved
Form 6D