辛置煤矿坚硬顶板下巷道围岩控制技术研究与应用

Research and Application of Roadway Surrounding Rock Control Technology under Hard Roof in Xinzhi Coal Mine

为充分发挥坚硬顶板承载能力,实现坚硬顶板下巷道围岩的稳定控制,以辛置煤矿2-216工作面运输巷顶板赋存基本顶岩层K8中细砂岩为工程背景,提出了以充分发挥坚硬顶板岩层承载能力、高强度及时主动控制、支护参数合理优化为核心的坚硬顶板下巷道围岩控制思路。基于此,开发了坚硬顶板下巷道围岩控制技术。现场应用后,实现了2-216工作面运输巷围岩的稳定控制。

In order to give full play to the bearing capacity of the hard roof and realize the stability control of the surrounding rock of the roadway under the hard roof,taking the K8 medium fine sandstone of the basic roof rock in the roof of the transportation roadway of the 2-216 working face of Xinzhi Coal Mine as the engineering background,this paper puts forward the control idea of roadway surrounding rock under hard roof,which is based on giving full play to the bearing capacity of hard roof strata,timely active control of high strength and reasonable optimization of support parameters.Based on this,the surrounding rock control technology of roadway under hard roof is developed.After field application,the stability control of the surrounding rock of the transportation roadway in the 2-216 working face is realized.