Module 1 : Site Exploration and Geotechnical Investigation
Lecture 5 : Geophysical Exploration [ Section 5.2 : Water table location, Pumping –in test, Common soil tests ]
   
  Pumping –in test

The pumping –in tests are carried out to determine the field permeability.

The two tests that fall in this category are :  

Constant head test :

This test is applicable for coarse-grained soils.

for this case k = Q / ( 5.5 rH), where, r = internal radius pipe, Q = inflow rate.

 
 

Fig.1.22 Constant Head test

 
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