厚层灰岩顶板回采巷道支护参数优化数值模拟分析

Numerical Simulation Analysis on Support Parameters Optimization of Mining Roadway with Thick Limestone Roof

为了优化回采巷道支护参数,降低支护成本,分析了煤层及顶底板的岩石力学参数,对巷道支护方案进行优化。通过数值模拟软件对相邻工作面和本工作面采动应力作用下回采巷道围岩变形破坏特征进行模拟分析。优化支护参数后,回采巷道围岩变形控制效果较好,能够满足安全生产使用要求。

In order to optimize the support parameters of mining roadway and reduce the support cost,the rock mechanics parameters of coal seam and roof and floor are analyzed,and the support scheme of roadway is optimized.The deformation and failure characteristics of surrounding rock of mining roadway under the action of mining stress of adjacent working face and this working face are simulated and analyzed by numerical simulation software.It is considered that the deformation control effect of surrounding rock is better after optimizing the support parameters,which can meet the requirements of safe production and use.