双重扰动影响下大断面巷道变形分析与支护优化

Deformation analysis and support optimization of large cross-section roadway under the influence of double-disturbance

介绍了通过现场工程地质研究、数值模拟分析,优化了羊场湾煤矿120203大采高大断面巷道风巷超前段支护工艺,分析了优化后的支护效果,结果表明优化后的支护工艺较好的减缓了巷道变形,控制了巷道顶板内部围岩的裂隙发育。

By the site engineering geological research and numerical simulation, the paper optimized the support technology of the large cross-section roadways in Yangchangwan Coal Mine and analyzed the support effect. The result shows that the optimized support tech-nology can slow down the roadway deformation and control the crack development in the roadway roof strata.