
Figure 5. The depth of continuous diaphragm wall of three schemes.
Figure 6. Land subsidence contour map after foundation pit dewatering 66 days.
4 MULTI-SCHEME COMPARATIVE ANALYSIS
With the identified and verified numerical model of three-dimensional unsteady seepage and land
subsidence of groundwater, it plans to use three different containments (of which the insertion
depth is different) and dewatering well layout scheme (of which the position and pump output are
different) for simulation. The depth of continuous diaphragm wall of three schemes is shown in
Figure 5.
The water head value inside and outside the foundation pit in three schemes and