BS 1377 Part 5 1990
Consolidation test - calculations
Location
Job Ref:
BH No.
Soil Description
Sample No.
Depth
Test method
BS1377: Part 5:
1990:
Date
Machine no.
Specimen diameter
mm
Height H0
mm
Cell no.
Height of Solids Hs
:1
Area
mm2
Ring no.
Initial voids ratio eo
kPa
VOIDS RATIO
COMPRESSIBILITY
COEFFICIENT OF CONSOLIDATION
Increment no
Pressure
Cumulative
Consolidated
Voids
Incremental
mv=
H=
cv
p
Compression
height
Ratio
Height
Pressure
(dH)*(1000)
t50
1/2(H1+H2)
0.026H
0.11H
(dH - y)
H=
e=
change
change
H1
dp
t50
t50
Ho-(dH-y)
(h-Hs)/Hs
dH
dp
kPa
mm
mm
mm
kPa
m2/MN
min
mm
m2/year
m2/year
0
0
0
0
0
-
-
-
-
-
Operator
Checked
Approved
Form 5D