The Application Of The Analysis Of Fractrue Development In Jointed Rock

In order to learn the phase of fractured rock masses microscopic damage evolution under fissure water pressure, this paper uses the method of numerical analysis to study the macroscopic mechanical behavior and fracture mechanism.In this paper, we will develop the fissure water analytical procedures which are based on FLAC3D, and it will also expand the research areas of FLAC3D software. This program can simulate and analyze the crack initiation, expansion and through evolution, and it can also study the fissure water from analysis of stress state to analysis of failure process.This paper will carry out the following research works:Firstly, it presents a description of fissure water model and a kind of numerical simulation related to rock masses fracture under fissure water pressure. It also shows a secondary development of FLAC3D program and a fissure water program.Secondly, it simulates the failure process of homogeneous specimen with existing fractures under fissure water pressure and the results are agree with the previous experiments. By analysis the extended state of specimens under different fissure water pressure, stress and strain, peak strength, it makes the study of fractured rock mass damage process more in-depth.Lastly, it studies the slope rock excavation process under fissure water pressure in a fractured rock mass and analyzes the influence of different fissure water pressure and overload coefficient. According to the results, the stability of the slope rock is studied.