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金属矿床开采中,充填采矿法(水砂或胶结充填)的应用越来越广。充填工艺要求采取多种措施,以防止充填料和从充填体中排放出来的水渗进坑道。目前采用的唯一方法是砌筑挡墙。挡墙有木制的,混凝土的和钢筋混凝土的,厚由几十厘米至3米以上。砌筑挡墙的采矿坑道是以凿岩爆破法掘进的,因此坑壁很不平整。在构筑挡墙之前,通常要清理坑道的顶、底板和两壁;而
In the mining of metal deposits, the application of filling mining method (water sand or cemented filling) is more and more widely used. The filling process requires a number of measures to prevent the filling material and the water discharged from the filling material from entering the tunnel. The only method currently used is masonry retaining wall. Retaining wall with wood, concrete and reinforced concrete, the thickness of dozens of centimeters to 3 meters. Masonry retaining wall mining tunnel is boring blasting method, so the pit wall is not smooth. Before constructing the retaining wall, it is common to clean the top, bottom and walls of the tunnel