摘要
针对深埋厚煤层孤岛煤柱回收过程中巷道围岩变形不均匀、维护效果差等现状,以回收3102孤岛煤柱为工程背景,采用混凝土、承载煤柱和锚杆三者互相耦合共同支撑上覆岩层。详细介绍了防冲护巷方法的施工工艺。
Aiming at the situation of mining buried deep in thick coal seam isolated island pillar with the roadway uneven deform and poor support effects,took recycling 3102 isolated island pillar as engineering background,using concrete, loading coal pillar and bolt coupled with each other common support overburden. Introduces the impingement construction technology of roadway protection method.
出处
《煤炭技术》
CAS
北大核心
2016年第10期61-62,共2页
Coal Technology
关键词
孤岛工作面
煤柱
防冲护巷
isolated island mining face
coal pillar
impingement roadway protection
