大断面复合顶板回采巷道联合支护技术在曹村煤矿的应用

Application of Combined Supporting in Caocun Coalmine Compound Roof Roadway with Large Section

基于曹村煤矿巷道大断面复合顶板的特殊条件,通过理论分析、数值模拟计算进行不同巷道支护参数对围岩控制效果的系统研究,最终确定出合理的支护参数。现场工业性试验表明,掘进和回采期间巷道围岩变形较小,巷道围岩控制效果较好,保证了生产期间巷道的稳定。

Based on Compound Roof Roadway with Large Section of Caocun coalmine, by theoretical analysis, numerical simulation for different control effect of surrounding rock of roadway support parameters on the system research, finally determined reasonable supporting parameters. Field industrial test shows that during excavation and mining roadway surrounding deformation is small, the control effect of roadway surrounding rock is better, ensure the sta- bility of the roadway during the production.