赵庄矿大断面回采巷道围岩稳定性控制研究

Study on Stability Control of Surrounding Rock of Large Section Stoping Roadway in Zhaozhuang Coal Mine

针对赵庄煤矿1310工作面大断面不稳定回采巷道,通过数值模拟分析了不同支护参数对于巷道围岩的影响,结果表明:支护参数相同的情况下,适当增加锚固力,支护效果较好;在同等锚固力的情况下,适当缩短支护材料长度,支护效果更佳。并据此选择了合理的支护参数,现场应用结果表明,支护设计合理,支护效果良好。

In view of the large section unstable mining roadway in zhaozhuang Coal Mine 1310 working face,the influence of different supporting parameters on surrounding rock of the roadway is analyzed through numerical simulation.The results show that:under the same supporting parameters,the support effect is better with the anchorage force appropriately increased.Under the condition of the same anchoring force,the supporting effect is better by shortening the length of supporting material appropriately.Based on this,reasonable support parameters are selected,and the results of field application show that the support design is reasonable and the support effect is good.