THE COOPER UNION
Albert Nerken School of Engineering
SOIL MECHANICS LABORATORY
Experiment No. 7 - Variable Head Permeability Test
Name:

Date:

Group No.:
Members:

Location: Depth: Horizon:
Boring: Elevation: Agronomic Name:
Geological Region: Sample:
Description:

Table 1 [Data Sheet (A)]: Sample Preparation Data

Determination Number: 1 2 3
Area of Permeameter, A (cm2):
Length of Sample, L (cm):
Total Volume of Sample, Vt (cm3):
Weight of Permeameter & Sample (g):
Weight of Permeameter (g):
Weight of Soil Sample, Wt (g):
Water Content, w (%):
Specific Gravity, Gs:
Dry Unit Weight (pcf):
Void Ratio, e:
Porosity, n (%):


Table 2 [Data Sheet (B)]: Run Data

Determination Number:

Diameter of Standpipe, d, (cm): Area of Standpipe, a, (cm2):
Run Number Initial Standpipe Reading, h0 (cm) Final Standpipe Reading, h1 (cm) h0/h1 Elapsed Time, tT (sec) Temperature, T (:C) Elapsed Time, t20 (sec) ln(h0/h1)
1
2
3
4
5
6
7
8