Based on the results of underground observations and model tests of simulated materials of immediate roof, it is expounded that fragmented roof belongs in cataclastic rock mass,and its caving characteristics is clarified in this paper too.

Research progress of experimental study on seepage characteristic of fractured rock masses;

Study on Grouting Diffusion Regularity of Fractured Rock Masses Based on Fractal Theory;

Study on the equivalent thermal conductivity coefficient of fractured rock masses

A study on conceptual models of fluid flow in fractured rock;

Review on determination of hydraulic conductivity of fractured rocks;

Using stochastic continuum model to simulate hydro-mechanical processes in deformed fractured rock during tunnel excavation;