1. Estimate overburden (total) and effective stresses at the base of the well with three soil layers. The water table starts at the boundary of layer 1 and layer 2 (implies that layers 2 and 3 are saturated layers). What is the maximum injection pressure that can be used to avoid failure? Soil properties Depth (m) Void ratio Specific gravity of solids, Gs Layer 1 4 0.4 2.62 Layer 2 (Below Layer 1) 3 0.75 2.73 Layer 3 (Below Layer 2) 5 0.6 2.68