Erosive effects of water chemistry of cracked rocks are studied under different chemical solutions and the same velocity.

Based on the results of uniaxial compressive test un- der different chemical solutions and velocity,the effect of strength and deformation and main modes of crack coa- lescence are analyzed according to Uniaxial compressive stress-strain curves for different cracked rocks under chemical corrosion.

Study on the coupling effect of the unsteady seepage in rock fractures with the rock deformation by using DDA (discontinuous deformation analysis) method;

Image enhancement for rock fractures based on fractional differential

Considering the different levels of normal stress,the relationship between shear stress and shear deformation of rock fracture is built firstly.

A digital image-based (DIB) numerical method is used in two-dimensional coupled multiphysics analysis of fractured rock masses by actually taking into account the heterogeneous spatial distribution of rock structures—main fractures, minor fractures and intact rock.

The heterogeneity of fractured rock masses has been simulated via statistical tools or random distribution packages in most numerical simulations.

Using the specified triaxial loading equipment corresponding to the CT machine, the comparison of real-time computerized tomography testing of damage failure mechanism of cracked rock in cold region under successive triaxial loading and unloading has been accomplished .

The recognition of rock fractures is very important in many real rock engineering applications.