In terms of seepage characteristic in fracture network of rock mass, three dimensional seepage model in main fracture network of rock mass is constructed.

Flow in the dominant fracture system is described by a distinct medium model, while flow in the network fracture system is described by a continuous medium model, and the two models are coupled together by hydraulic head and flux.

Fractures in a rock mass can be divided into dominant fracture system and network fracture system.

Numerical simulation of grouting in space fracture network of rock mass;

3-D seepage flow model for discrete fracture network and verification experiment;

Analysis of nonlinear seepage through fracture network in rock mass;

Based on the discrete numerical model of seepage flow of initial fissure network, a new numerical analysis method, rigid-body element method, is used to carry out the coupling analysis of seepage flow field of fissure network and the stress field in fissured rock masses.

Based on the principle of isotope tracer in single well, and combing with well-theory of seepage flow, a mathematic model of two-dimension fissure network is proposed in the paper.

Analysis of joint network simulation method and REV scale;

Using experimental results of little scale,associated with joint networks,then u- tilizing sophisticated static equivalence of anisotropic deformation parameters in a large scale become an effective met.