某铁矿采空区治理技术研究
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摘要
某铁矿采用留矿法开采,生产中在井下形成了不同规模的采空区,并在采空区顶板遗留了部分高品位矿石,为了消除采空区对井下生产及地表环境设施造成的威胁,并适时回收顶板高品位矿石,本文采用相似模拟实验分析了充填散体结拱及流动特性,确定了地表充填井合理尺寸及布置参数。结合采空区存在状态,提出了地表钻孔监测与废石充填相结合的采空区治理方法;根据采空区顶板矿体分布情况,研究提出了地表台阶剥离+中深孔爆破的顶板矿体回收方法。该方法已被矿山成功应用,可为类似条件矿山的采空区治理提供借鉴。
A iron mine was mined by using the short-hole shrinkage method.In the production,various sizes of goafs were formed under the ground,and some high-grade ore was left above the goaf-roof.In order to eliminate the threat of the goaf to underground production and surface environment and facilities,and timely recovery of high-grade ore,similar laboratory experiments are used to analyze the arch and flow characteristics of the filling granular media,and to determine the reasonable size and arrangement spacing of the surface filling wells.Combining with the status of goafs,a control method of goafs is put forward,which is combined with surface drilling monitoring and waste rock filling.According to the distribution of the roof orebody,the goaf-roof orebody recovery method combined with surface step peeling and deep hole blasting is further proposed.This method has been successfully applied in the mine and can provide reference for the goaf control with similar conditions.
A iron mine was mined by using the short-hole shrinkage method.In the production,various sizes of goafs were formed under the ground,and some high-grade ore was left above the goaf-roof.In order to eliminate the threat of the goaf to underground production and surface environment and facilities,and timely recovery of high-grade ore,similar laboratory experiments are used to analyze the arch and flow characteristics of the filling granular media,and to determine the reasonable size and arrangement spacing of the surface filling wells.Combining with the status of goafs,a control method of goafs is put forward,which is combined with surface drilling monitoring and waste rock filling.According to the distribution of the roof orebody,the goaf-roof orebody recovery method combined with surface step peeling and deep hole blasting is further proposed.This method has been successfully applied in the mine and can provide reference for the goaf control with similar conditions.
引文
[1]万串串,王湖鑫,罗先伟,等.高峰矿105号矿体残矿回采与采空区治理协同技术研究[J].中国矿业,2017,26(S2):340-344.WAN Chuanchuan,WANG Huxin,LUO Xianwei,et al.Study on the collaborative technology of residual ore mining and mine void treatment of No.105orebody in Gaofeng mine[J].China Mining Magazine,2017,26(S2):340-344.
[2]林启祥,段蔚平,孙丽敏,等.全尾砂充填技术在黄山岭铅锌矿采空区治理中的应用[J].现代矿业,2017,33(8):211-213.LIN Qixiang,DUAN Weiping,SUN Limin,et al.Application of whole tailings filling technology in goaf area treatment of Huangshanling lead-zinc mine[J].Modern Mining,2017,33(8):211-213.
[3]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,2005,14(2):15-16.ZHOU Zonghong,REN Fengyu,YUAN Guoqiang.Study on treatment method of the mined area in Taochong iron mine[J].China Mining Magazine,2005,14(2):15-16.
[4]冯盼学,陈何,解联库,等.某铅锌矿采空区崩落处理与安全保障技术研究[J].中国矿业,2017,26(S1):372-377.FENG Panxue,CHEN He,XIE Lianku,et al.Study on the technologies of goaf caving and safety ensuring in a lead-zinc mine[J].China Mining Magazine,2017,26(S1):372-377.
[5]张飞,田睿,菅玉荣,等.内蒙古某多金属矿2号矿体采空区处理方案探讨[J].金属矿山,2011(7):47-50.ZHANG Fei,TIAN Rui,JIAN Yurong,et al.Discussion on the treatment scheme of mined-out area of No.2ore body of a muti-metal mine in inner mongolia[J].Metal Mine,2011(7):47-50.
[6]贾海波,任凤玉,丁航行,等.某银多金属矿采空区综合治理方法[J].金属矿山,2018(2):41-45.JIA Haibo,REN Fengyu,DING Hangxing,et al.Comprehensive treatment of a mined-out area in a ag-polymetallic deposit[J].Metal Mine,2018(2):41-45.
[7]任凤玉,刘洋,张东杰,等.萤石矿近主井采空区治理方法研究[J].矿业研究与开发,2017(11):21-25.REN Fengyu,LIU Yang,ZHANG Dongjie,et al.Discussion on the treatment schemes of goaf closing to the main shaft in fluorite mine[J].Mining Research and Development,2017(11):21-25.
[8]刘海林,张成舟,王星.低价值矿体复杂采空区群治理技术研究[J].金属矿山,2016(8):134-137.LIU Hailin,ZHANG Chengzhou,WANG Xing.Treatment technology of complex goaf group with low-value ore-body[J].Metal Mine,2016(8):134-137.
[9]申其鸿.国内某排土场岩石块度分布规律研究[J].矿业研究与开发,2016(7):63-67.SHEN Qihong.Research on the distribution of rock lumpiness from a waste dump in domestic[J].Mining Research and Development,2016(7):63-67.
[10]何荣兴,任凤玉,曹建立,等.基于RG井下电视系统的空区冒落监测[J].金属矿山,2015(8):120-124.HE Rongxing,REN Fengyu,CAO Jianli,et al.Goaf monitoring based on RG winlogger and its application[J].Metal Mine,2015(8):120-124.
[11]任凤玉,翟会超.VCR法开掘采空区充填井技术研究[J].有色金属:矿山部分,2012,64(1):45-47.REN Fengyu,ZHAI Huichao.Study on VCR method to excavate packed well of gob[J].Nonferrous Metals:Mining Section,2012,64(1):45-47.
[2]林启祥,段蔚平,孙丽敏,等.全尾砂充填技术在黄山岭铅锌矿采空区治理中的应用[J].现代矿业,2017,33(8):211-213.LIN Qixiang,DUAN Weiping,SUN Limin,et al.Application of whole tailings filling technology in goaf area treatment of Huangshanling lead-zinc mine[J].Modern Mining,2017,33(8):211-213.
[3]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,2005,14(2):15-16.ZHOU Zonghong,REN Fengyu,YUAN Guoqiang.Study on treatment method of the mined area in Taochong iron mine[J].China Mining Magazine,2005,14(2):15-16.
[4]冯盼学,陈何,解联库,等.某铅锌矿采空区崩落处理与安全保障技术研究[J].中国矿业,2017,26(S1):372-377.FENG Panxue,CHEN He,XIE Lianku,et al.Study on the technologies of goaf caving and safety ensuring in a lead-zinc mine[J].China Mining Magazine,2017,26(S1):372-377.
[5]张飞,田睿,菅玉荣,等.内蒙古某多金属矿2号矿体采空区处理方案探讨[J].金属矿山,2011(7):47-50.ZHANG Fei,TIAN Rui,JIAN Yurong,et al.Discussion on the treatment scheme of mined-out area of No.2ore body of a muti-metal mine in inner mongolia[J].Metal Mine,2011(7):47-50.
[6]贾海波,任凤玉,丁航行,等.某银多金属矿采空区综合治理方法[J].金属矿山,2018(2):41-45.JIA Haibo,REN Fengyu,DING Hangxing,et al.Comprehensive treatment of a mined-out area in a ag-polymetallic deposit[J].Metal Mine,2018(2):41-45.
[7]任凤玉,刘洋,张东杰,等.萤石矿近主井采空区治理方法研究[J].矿业研究与开发,2017(11):21-25.REN Fengyu,LIU Yang,ZHANG Dongjie,et al.Discussion on the treatment schemes of goaf closing to the main shaft in fluorite mine[J].Mining Research and Development,2017(11):21-25.
[8]刘海林,张成舟,王星.低价值矿体复杂采空区群治理技术研究[J].金属矿山,2016(8):134-137.LIU Hailin,ZHANG Chengzhou,WANG Xing.Treatment technology of complex goaf group with low-value ore-body[J].Metal Mine,2016(8):134-137.
[9]申其鸿.国内某排土场岩石块度分布规律研究[J].矿业研究与开发,2016(7):63-67.SHEN Qihong.Research on the distribution of rock lumpiness from a waste dump in domestic[J].Mining Research and Development,2016(7):63-67.
[10]何荣兴,任凤玉,曹建立,等.基于RG井下电视系统的空区冒落监测[J].金属矿山,2015(8):120-124.HE Rongxing,REN Fengyu,CAO Jianli,et al.Goaf monitoring based on RG winlogger and its application[J].Metal Mine,2015(8):120-124.
[11]任凤玉,翟会超.VCR法开掘采空区充填井技术研究[J].有色金属:矿山部分,2012,64(1):45-47.REN Fengyu,ZHAI Huichao.Study on VCR method to excavate packed well of gob[J].Nonferrous Metals:Mining Section,2012,64(1):45-47.