摘要
基于黄陵一号井805工作面地质条件,通过制定锚杆(索)联合支护方案和工业性试验监测,分析在综采工作面超前支承压力作用下,回采巷道围岩应力及顶板离层变化,说明805工作面两条回采巷道在回采期间受采动压力影响下围岩得到有效控制,表明锚杆(索)联合支护方案合理,能够有效地降低采动压力影响下回采巷道围岩收敛变形,满足安全回采需要。
Based on the geological conditions of No.805 working face in Huangling No.1 coal mine,by analyzing the variation of surrounding rock stress and roof separation layer under the action of advanced support pressure in fully mechanized mining face,the bolt(cable)combined support scheme is proposed.The industrial test shows that the surrounding rock of two mining roadways in No.805 working face is effectively controlled under the influence of mining pressure.The research shows that the bolt(cable)combined support scheme can effectively reduce the convergence deformation of mining roadway under the influence of mining pressure,and meet the needs of safety mining.
作者
袁亚文
YUAN Ya-wen(Shaanxi Shanmei Huangling Mining Co. ,Ltd. ,Yan’an 727307,China)
出处
《陕西煤炭》
2020年第5期40-43,共4页
Shaanxi Coal
关键词
采动压力
复合主动支护
围岩稳定
mining pressure
composite active support
surrounding rock stability