摘要
四川省华蓥煤矿水田坝矿井＋５００ｍ水平开采的Ｋ１煤层为急倾斜中厚煤层，采用伪斜柔性掩护支架分上、下区段同时开采。本文研究了采用该方法时工作面的前后支承压力的显现规律及巷道顶底板和两帮变形规律，由此得出上下区段同时开采的合理错距和巷道支护的选择。
Abstract Kr coal seam, in +500m level of Shuitianba shaft, Huaying Colliery,Sichuan, is steep and medium thick. It is divided into upper sublevel andlower sublevel. Both are mined at the same time with false-inclined flexibleshield mining method. The paper studies the distribution of front and rearabutment pressure, and the deformation rules between roof and floor andbetween two sides of roadway. From this, the rational stagger distancebetween two sublevels and proper roadway support method are derived underthe condition the two sublevels are mined in the meantime.
出处
《矿山压力与顶板管理》
1998年第3期39-43,共5页
Ground Pressure and Strata Control
