近距离复合破碎顶板倒架原因探讨及处理倒架措施  

Discussion on the reasons for the collapse of the composite roof and the treatment measures

作　　者：崔广军 

机构地区：[1]西山煤电(集团)有限责任公司杜儿坪矿,山西太原030022

出　　处：《山东煤炭科技》2017年第5期1-2,4,共3页Shandong Coal Science and Technology

摘　　要：73801工作面为复合顶板,受无炭柱牵引顶板破碎、倾斜角度大,同时因为处在上部2~#煤柱下方,顶板压力明显。工作面12~30~#支架倒架严重,倒架倾斜角度45°左右。采用一般靠架方法无法解决倒架问题。通过降采高、铺网、打注锚杆锚索和注浆等一系列综合方法后,有效将支架顺利靠正。The 73801 working face is a composite roof, the roof is broken and the incline angle is large, and the roof pressure is obvious at the top of 2# coal pillar. The invertion of 12-30# supports of the working face is serious, the tilting angle is 45 ° The general closing frame method can not solve the problem. Through a series of comprehensive methods, such as decreasing the mining height, laying the nets, intalling the anchor bolt and grouting and so on. Effectively prevent the inverted frame

关 键 词：综采 复合顶板 倒架 处理 

分 类 号：TD327.2[矿业工程—矿井建设]