Introduction to Permeability Testing VJ Tech Limited - Blog - Irina@vjtech.co.uk Sep 11 2020 3785 0 Company News Permeability Testing Constant Head Dam Drainage Falling Head Geotechnical Engineering LandFillSites Permiability SoilTestings There are several laboratory and in situ tests that can be done to estimate the permeability of the soil and every test has its own advantages and disadvantages. The two most common are “the constant head permeability method” and “the falling head permeability method”. Read more ...