舒兰矿区顶底板岩层松软含水,支柱易钻底,顶板下沉量大而破碎,常沿煤壁切断、冒高小,顶压小,稳定性低。针对上述特点介绍了管理方法,如支柱穿底、控制顶板暴露面积与时间、提高支架稳定性和严密护顶,疏干等等。 Shulan Mine roof and floor rock floor soft and watery, easy to drill at the end of the pillars, roof subsidence and broken, often cut along the coal wall, risking small, small pressure, low stability. In view of the above characteristics, the management methods are introduced, such as piercing through the bottom, controlling the exposed area and time of the top plate, improving the stability of the stent, and closely protecting the top, sparsely drying and the like.