BS 1377 Part 6 1990
Hydraulic cell permeability test
Location
Job Ref:
BH No.
Soil Description
Sample No.
Depth
Test method
BS1377: Part 6:
1990 :
4.8.3,4.8.4
Date
Flow conditions*:vertical - upwards/downwards.Horizontal/outwards
TEST SPECIMEN
Diameter
mm
Nominal effective stree
s
v
'
kPa
Area
mm
Diaphragm pressure
p
d
kPa
Length
mm
Pressure on specimen
s
kPa
Density
p
Mg/m
3
Back pressure
p
2
kPa
Moisture Conten
t
%
Pressure differnce required
(
p
1
-
p
2
) kPa
Dry Density
p
Mg/m
3
Inlet pressure
p
1
kPa
Method of saturation
Mean effective stress
kPa
s
' =
s
- 1/2
(
p
1 -
p
2)
Final
B value
Hydraulic gradient
FLOW READINGS
Clock
Elapsed
Volume change indicator
time
Time
inlet
outlet
Test temperature
0
C
reading
difference
reading
difference
Correction
t
Q
1
Q
2
factor R
t
min
mL
mL
Remarks
0
0
0
Operator
Checked
Approved
Form 6G