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淮北矿业(集团)有限责任公司信湖煤矿位于涡阳县西南,信湖煤矿工业广场内设计主井、副井和风井3个井筒,采用立井开拓方式。根据技术要求,本次工业性试验选择中央水泵房及中央变电所200m巷道作为地面预注浆加固对象,该段巷道底板深度999m,其中:水泵房净断面高度5.95m、宽度5.90m,荒断面高度6.85m、宽度6.80m,断面尺寸较大;变电所净断面高度3.50m、宽
Huaibei Mining (Group) Co., Ltd. Xinhu Coal Mine is located in the southwest of Guoyang County, Xinhu Coal Mine Industrial Plaza design of the main shaft, auxiliary shaft and shaft 3 boreholes, the use of vertical well development. According to the technical requirements, this industrial test chooses the 200m roadway of the central pump house and the central substation as the ground pre-grouting reinforcement object. The floor depth of this roadway is 999m, of which, the net section height of the pump house is 5.95m and the width is 5.90m Section height 6.85m, width 6.80m, section size larger; Substation net section height 3.50m, width