粗糠田煤矿井筒表土段可伸缩刚性支架支护实践  

Support Practice of Telescopic Rigid Bracket in the Rockshaft Surface Soil Section of Cukangtian Coal Mine

作　　者：王振东 胡胜利 Wang Zhendong;Hu Shengi(Guizhou Guoyuan Mining Industry Development Co.,Ltd.,Guizhou Guiyang 550000)

机构地区：[1]贵州国源矿业开发有限公司,贵州贵阳550000

出　　处：《山东煤炭科技》2023年第9期226-228,共3页Shandong Coal Science and Technology

摘　　要：粗糠田煤矿井筒表土段位于第四系地层,施工进度慢、施工工艺复杂,采用U29型可伸缩支架替代原砌碹支护设计中的配筋,喷射厚300mm混凝土层与之黏结形成巷道永久支护,缩短了矿井工期。The surface soil section of the rockshaft of Cukangtian Coal Mine is located in the Quaternary strata,with slow construction progress and complex construction process.The U29 type expandable brackets are used to replace the reinforcing bars of the original arching support design,and a 300 mm thick concrete layer is sprayed to bond with it to form permanent support for the roadway,shortening the mine construction period.

关 键 词：U型支架 井筒 支护 

分 类 号：TD352.3[矿业工程—矿井建设]