FIGURE 3 Steps involved in assembling test apparatus for this experiment. FIGURE 3a Placing sand in the base of the pressure vessel FIGURE 3f Placing GT filter over ports FIGURE 3b Compaction of the sand subgrade Placing sand in the base of the pressure vessel FIGURE 3g Back saturation of sand in the collar FIGURE 3c Placement of the GCL on the subgrade FIGURE 3h Placing bladder used to apply pressure FIGURE 3d Placing 0.08 inch (2 mm) hole in wrinkled geomembrane FIGURE 3i Placing steel cover over the assembly FIGURE 3e Placing geotextile (GT) protection over GM FIGURE 3j Attaching leakage flow control panel to vessel www.GeosyntheticsMagazine.com 0620GS_p38-cv4.indd 45 45 5/20/20 10:04 PMhttp://www.GeosyntheticsMagazine.com