数值模拟软件在煤层巷道支护方案决策中的应用

摘要

基于经验的煤层底板巷道支护设计方法, 达不到理想的支护效果. 为提高支护效果, 应用FLAC3D数值分析软件计算地下巷道围岩结构的应力应变情况,分析结构稳定性和应力、位移变形情况,选取最优的锚杆和锚网支护方案,确保达到最优的锚固效果,提高支护效率.%Based on the experience of coal floor roadway support design method, to reach the ideal supporting effect. In order to improve the supporting effect, FLAC 3D numerical analysis software to calculate the stress and strain of roadway surrounding rock of underground struc-ture, analysis of structural stability and stress and displacement deformation, selecting the optimal anchor rod and anchor net support plan, ensure to achieve the optimal effect of anchorage, improve the efficiency of supporting.