A Coupled One-Dimensional Numerical Simulation of the Land Subsidence Process in a Multilayer Aquifer System due to Hydraulic Head Variation in the Pumped Layer

Figure 4

Distributions of pressure head and soil displacement in confined aquifer I during different stages.

(a) Stage I

(b) Stage I

(c) Stage II

(d) Stage II

(e) Stage III

(f) Stage III