李家壕煤矿11208工作面切眼加强支护的研究

Research of 11208 Working Face Cut Eye Supporting in Lijiahao Coal Mine

根据李家壕煤矿2-2中煤11208工作面切眼加强支护研究的需要,在工作面切眼布置位移观测点,对切眼顶板位移情况进行实时观测。根据各个测点位置顶板变化情况,分析了切眼顶板下沉位置及下沉量,准确把握顶板变化情况,从而制定适合11208工作面切眼顶板支护的具体方案,为本矿大断面顶板支护提供了实践经验。

According to Lijiahao coal mine 2-2central level coal 11208 working face to support the needs of the working face arrangement of the displacement observation points,real-time observation of the cut roof displacement.Each measuring point roof changes the location of the cut eye roof sinking and sinking an accurate grasp of the roof changes,so as to formulate suitable for 11208 working face of the eye to the roof support specific programs,oriented to mine large cross section roof support care provides practical experience.