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用喷射混凝土封闭工作面是工作面预注浆时构筑止浆墙方法的改进,本文以铜官山铜矿工作面预注浆为例,阐述了喷射混凝土封闭工作面的施工方法,并与常规构筑混凝土止浆墙相比较,作了概略的技术经济分析。
In the case of pre-grouting at Tongguanshan copper mine face, the construction method of closed concrete face with shotcrete is expounded and compared with conventional Constructed concrete wall compared to the wall, made a rough technical and economic analysis.