综掘快速施工技术在底板抽放巷工程中的应用

为适应突出矿井瓦斯治理新要求、新标准，针对瓦斯治理岩巷工程量大、采掘接替关系紧张等问题，禹州枣园煤业有限公司勇于淘汰传统炮掘工艺，提出综掘快速施工，以“地质资料”匹配“机械性能”作为投入岩巷综掘机的前提，对底板抽放巷层位及综掘快速施工技术进行研究，经过实测二₁煤层底板8～15 m内岩石赋存情况及坚固性系数匹配最佳性能综掘机，确定底板抽放巷层位；高效优化各生产系统，探索正规循环作业模式，实现了岩巷单进水平190 m/月的突破，赢得充足的瓦斯治理时间。为类似煤与瓦斯突出矿井底板抽放巷工程层位确定及快速施工技术提供了借鉴。

Research and application of coordinated support technology for deep soft rock roadway in Pingdingshan No.12 Coal Mine

In order to solve the problem that the surrounding rock deformation of the roadway under the original support mode is large in the Ⅵ₁₄-31090 return airway，the concrete analysis method of the coordinated support technology of the deep soft rock roadway in the roadway is combined with the original support way of the surrounding rock of the roadway.According to the specific situation of the deformation of the surrounding rock，it is determined that the coordinated support technology is adopted for the Ⅵ₁₄-31090 return air passage of the roadway，the optimized support scheme forms the top coordination branch by adopting the top plate to make the pressure anchor cable and the two sets of anchor cables.According to the specific conditions of the surrounding rock，the coordinated support scheme of the roadway is specifically designed.After the design of the support scheme is completed，the rationality of the support scheme is verified by numerical simulation.The numerical simulation results show that the support scheme can ensure the stability of surrounding rock，after the support scheme is implemented，the deformation of surrounding rock is effectively monitored，the results show that the maximum displacement of two sides is 116 mm，and the maximum displacement of roof and floor is 72 mm，which effectively solves the problem of large deformation of surrounding rock of roadway.