为了解决急倾斜“三软”煤层综放开采支架顶空、煤壁片帮、底板滑移、挤架倒架等技术难题,以杜家村煤矿1201工作面为例,通过研究工作面切眼的合理布设、工作面围岩的稳定性控制及配套设备与施工工艺的合理选择等,得出有效控制急倾斜“三软”煤层综放开采工作面稳定性的措施,取得了急倾斜“三软”煤层综放开采的成功,具有显著的经济、社会效益。
To solve the difficulty of top-coal and coal wall falling ,bottom slipping ,supports toppling and biting of the “three soft” steeply inclined seam fully-mechanized mining working face ,with the engineering background of Du jiacun 1201 working face ,the study such as the location control of open-off-cut ,the stability of surrounding rock control ,corollary equipment and construction technology are did . Through the above study ,we get the effective measures to control the stability of working face .The measures finally make successfully mining in 1201working face ,and we receive good society and economy benefits .