针对黄泥顶板复合支护的分析

Analysis on Composite Support of Yellow Mud Roof

15101工作面顶板为黄泥夹裹碎石的镶嵌型碎石层,针对此种顶板,煤矿积极采用顺槽补打锚杆和锚索、注水泥浆、预注化学浆和超前带压拉架的方式对顶板进行加固。经加固,顶板形态基本符合正常回采工作的要求。

The roof of 15101 working face was inlaid gravel layer with yellow mud and crushed stone.In view of this kind of roof,the coal mine actively adopted the ways of drilling bolt and anchor cable in the groove,water injection slurry,pre-injection chemical slurry and advanced tension frame with pressure to reinforce the roof.After reinforcement,the roof shape basically meets the requirements of normal mining work.