露天边帮下紧邻尾矿库采空区地表充填治理方法
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摘要
针对采空区废石充填常规处理方法难度大、费用高、安全性差等问题,结合排山楼金矿条件,研究了控制诱导冒落协同地表充填塌陷坑的采空区充填治理方法,包括采用RG井下电视监测评估空区冒落进程,从地表钻井充填保护露天坑尾矿库,崩落矿柱诱导空区冒透地表,地表充填塌陷坑恢复地貌,客土造田与恢复地表使用功能等方法.该方法用于排山楼金矿,使大型活动空区得到安全高效充填治理,取得了良好的技术经济效果.理论分析与实践表明,露天边帮下紧邻尾矿库的倾斜矿体采空区控制诱导冒落协同地表充填的治理方法,可减小采空区废石充填治理的难度,实现大型采空区安全高效治理.
Aimed at solving high cost,poor safety and extreme difficulty caused by conventional mined-out area treatment by waste rock filling,innovative mined-out area treatment method was studied by inducing and controlling caving as well as surface collapse pit filling, used in Paishanlou gold mine. The innovative methods including using of RG underground television monitoring and evaluation on mined-out area caving process,drilling from the surface protecting the open pit tailings reservoir,blasting ore pillar and inducing the emit through earth' s surface,recovering landform by filling collapse pit from the surface and land forming by alien earth and recovery surface function. The application of this innovative method in Paishanlou gold mine enables safe and efficient filling treatment of large-scale active mined-out area,and achieve good economical and technical results. Both theoretical analysis and practice shows that,for open-pit slope adjacent to the tailings reservoir of inclined ore body mined-out area,using controlled induced caving and surface filling method will reduce the difficulty of mined-out area waste rock filling treatment,and ensured safe and efficient treatment of large-scale mined-out area.
Aimed at solving high cost,poor safety and extreme difficulty caused by conventional mined-out area treatment by waste rock filling,innovative mined-out area treatment method was studied by inducing and controlling caving as well as surface collapse pit filling, used in Paishanlou gold mine. The innovative methods including using of RG underground television monitoring and evaluation on mined-out area caving process,drilling from the surface protecting the open pit tailings reservoir,blasting ore pillar and inducing the emit through earth' s surface,recovering landform by filling collapse pit from the surface and land forming by alien earth and recovery surface function. The application of this innovative method in Paishanlou gold mine enables safe and efficient filling treatment of large-scale active mined-out area,and achieve good economical and technical results. Both theoretical analysis and practice shows that,for open-pit slope adjacent to the tailings reservoir of inclined ore body mined-out area,using controlled induced caving and surface filling method will reduce the difficulty of mined-out area waste rock filling treatment,and ensured safe and efficient treatment of large-scale mined-out area.
引文
[1]Luo Z Q,Xie C Y,Zhou J M,et al.Numerical analysis of stability for mined-out area in multi-field coupling[J].Central South University,2015(22):669-675.
[2]周宗红,任凤玉,袁国强.桃冲铁矿采空区处理方法研究[J].中国矿业,2005(2):17-18.(Zhou Zong-hong,Ren Feng-yu,Yuan Guo-qiang.Study on treatment method of the mined area in Taochong iron mine[J].China Mining Magazine,2005(2):17-18.)
[3]李俊平,肖旭峰,冯长根.采空区处理方法研究进展[J].中国安全科学学报,2012,22(3):48-54.(Li Jun-ping,Xiao Xu-feng,Feng Chang-gen.Progress in developing methods for dealing w ith forsaken stope[J].China Safety Science Journal,2012,22(3):48-54.)
[4]Lai X P,Xie M W,Ren F H,et al.Quantitative analysis of biotechnical reinforcement for a steep slope consisting of composite coal-gangue-soil medium adjacent to a mined-out area[J].Journal of University of Science and Technology Beijing,2005,12(6):489-494.
[5]Lai X P,Wang L H,Cai M F.Couple analyzing the acoustic emission characters from hard composite rock fracture[J].Journal of University of Science and Technology Beijing,2004,11(2):97-100.
[6]Cai M F,Hao S H,Ji H G.Regularity and prediction of ground pressure in Haigou gold mine[J].Journal of University of Science and Technology Beijing,2008,15(5):521-527.
[7]Zhang B Y,Bai H B,Zhang K.Seepage characteristics of collapse column fillings[J].International Journal of Mining Science and Technology,2016,26(2):333-338.
[8]Robin O,Craig D,Rusty M.Void fill techniques for stabilizing roof conditions during longw all recovery[J].International Journal of Mining Science and Technology,2016,26(1):119-122.
[9]Narrei S,Osanloo M.Optimum cut-off grade’s calculation in open pit mines w ith regard to reducing the undesirable environmental impacts[J].International Journal of Mining,2015,29(3):226-242.
[10]Huertas J I,Huertas M E,Cervantes G,et al.Assessment of the natural sources of particulate matter on the opencast mines air quality[J].Science of the Total Environment,2014,493(3):1047-1055.
[11]Yavuz M,Altay B L.Reclamation project selection using fuzzy decision-making methods[J].Environmental Earth Sciences,2015,73(10):6167-6179.
[2]周宗红,任凤玉,袁国强.桃冲铁矿采空区处理方法研究[J].中国矿业,2005(2):17-18.(Zhou Zong-hong,Ren Feng-yu,Yuan Guo-qiang.Study on treatment method of the mined area in Taochong iron mine[J].China Mining Magazine,2005(2):17-18.)
[3]李俊平,肖旭峰,冯长根.采空区处理方法研究进展[J].中国安全科学学报,2012,22(3):48-54.(Li Jun-ping,Xiao Xu-feng,Feng Chang-gen.Progress in developing methods for dealing w ith forsaken stope[J].China Safety Science Journal,2012,22(3):48-54.)
[4]Lai X P,Xie M W,Ren F H,et al.Quantitative analysis of biotechnical reinforcement for a steep slope consisting of composite coal-gangue-soil medium adjacent to a mined-out area[J].Journal of University of Science and Technology Beijing,2005,12(6):489-494.
[5]Lai X P,Wang L H,Cai M F.Couple analyzing the acoustic emission characters from hard composite rock fracture[J].Journal of University of Science and Technology Beijing,2004,11(2):97-100.
[6]Cai M F,Hao S H,Ji H G.Regularity and prediction of ground pressure in Haigou gold mine[J].Journal of University of Science and Technology Beijing,2008,15(5):521-527.
[7]Zhang B Y,Bai H B,Zhang K.Seepage characteristics of collapse column fillings[J].International Journal of Mining Science and Technology,2016,26(2):333-338.
[8]Robin O,Craig D,Rusty M.Void fill techniques for stabilizing roof conditions during longw all recovery[J].International Journal of Mining Science and Technology,2016,26(1):119-122.
[9]Narrei S,Osanloo M.Optimum cut-off grade’s calculation in open pit mines w ith regard to reducing the undesirable environmental impacts[J].International Journal of Mining,2015,29(3):226-242.
[10]Huertas J I,Huertas M E,Cervantes G,et al.Assessment of the natural sources of particulate matter on the opencast mines air quality[J].Science of the Total Environment,2014,493(3):1047-1055.
[11]Yavuz M,Altay B L.Reclamation project selection using fuzzy decision-making methods[J].Environmental Earth Sciences,2015,73(10):6167-6179.