基于有限差分的直接顶稳定性影响因素的数值模拟分析

基于有限差分计算方法,利用flac2d有限差分数值模拟软件,在不考虑节理间距的情况下对不同结构参数和不同力学参数的直接顶垮落过程进行数值模拟；分析直接顶力学参教、结构参数与直接顶稳定性的数值关系；并得出了直接顶的力学参数和结构参数对直接顶稳定性的影响结果,为制定岩层控制措施,支架选型及支护参数以及直接顶的稳定性分类提供一定的理论依据.

Numerical Simulation Analysis of Influence Factors of Direct Roof Stability Based on Finite Difference Calculation Method

Based on the finite difference method of computation, Flac2d finite difference numerical simulation software is used to simulate the process of different structural parameters and different mechanical parameters of direct roof collapse without joint spacings. The numerical re- lations among mechanical parameters, direct roof structure parameters and the stability direct roof are analyzed. Results of the direct roof sta- bility under changes of mechanical parameters and direct structural parameters are gotten as certain theoretical basis for formulate measures to control the rock supporting parameters and stent type and classification of direct roof stability.