Using the test data as calculating parameters,the composite foundation unit method was adopted that one cell was separated from the whole composite foundation as a research object.

Study on bolted discontinuous rock mass by composite element method;

Optimization design of drainage holes based on orthogonal experiments and composite element method;

Unconfined seepage analysis with composite element method;

Based on the variation principle,the composite element method(CEM) is studied for seepage analysis considering discontinuous surfaces and drainage holes.

In seepage analysis using the composite element method(CEM),the drainage holes are regarded as a kind of material with high permeability coefficient and are treated as“air sub-elements”contained in the conventional rock(soil) element,which is called“composite element”.

A composite element algorithm for temperature field of discontinuous rock masses is implemented based on the principle of composite element method(CEM) and the implicit expression of unsteady temperature field.

Overloading failure simulation for Baozhusi gravity dam by improved composite element method;

Study on numerical simulation of drainage hole of seepage field in underground engineering with implicit composite element method;