Effects of Nonaqueous Phase Liquids Pollution on the Permeability and Microstructure of In-Filed and Laboratory Soaked Contaminated Clay Soils

Figure 6

Improved rigid wall permeability test device and operation steps. (a) Sample chamber. (b) Set up rubber membrane. (c) Place the soil sample chamber on the base. (d) Adjust the confining pressure to place the soil sample to be tested. (e) Tighten the bolts around the top cover. (f) Open the top cover vent valve for venting. (g) Conduct a permeability test.

(a)

(b)

(c)

(d)

(e)

(f)

(g)