广东省大宝山矿采空区处理充填工艺技术研究

n super large goaf near to 2# inclined shaft, ranging from 500m to 610m level, is a dangerous factor to shaft station and future mining activity in Copper Branch of DaBaoShan Mineral Limited Company, GuangDong. The spatial distribution of the goaf is learned thoroughly, based on detailed field investigation and data analyses in the mine. Two kinds of treatment methods, namely waste rock filling technology and crude tailings fill technology, are proposed according to the specific mining conditions. The main physical and mechanical properties are measured and mechanism of the filling body is discussed in this paper. It is theoretically confirmed that goaf could be treated effectively by waste rock filling technology and crude tailings fill technology. The result is helpful to remove the hidden danger from goaf, to protect environment, and to accomplish the sustainable development of the mine.