锡林浩特萤石矿竖井保安矿柱优化方法
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摘要
锡林浩特萤石矿原设计采用65°岩移角圈定保安矿柱,随着采矿不断向深部发展,发现越来越多的矿石资源位于保安矿柱圈定范围内,导致可采矿量大大降低,严重影响矿山的正常生产。为解决这一问题,在对地表塌陷范围与准确塌落角测确的基础上,研究提出了利用临界散体柱作用机理来优化保安矿柱的新思路,有效解决了传统保安矿柱的过度圈定问题,避免了矿产资源的不必要浪费。现场应用中,释放矿量约5.1万t,经济效益显著。该保安矿柱优化方法可为类似条件的矿山提供借鉴。
Xilinhaote fluorite mine was originally designed to use a 65° rock transfer angle to delineate security pillars.As mining continues to deepen,more and more ore resources are found within the delineation of the security pillars,resulting in a significant reduction in mining capacity,and seriously affecting the normal production of the mine.In order to solve this problem,on the basis of measuring the collapse range and accurately measuring the collapse angle,a new idea of using the mechanism of the critical bulk solid column to optimize the security pillars was proposed,this effectively solved the problem of excessive delineation of traditional security pillars,and avoided unnecessary waste of mineral resources.On-site application,the release of ore is about 51 thousand tons,with significant economic benefits.The security pillar optimization method can provide reference for mines with similar conditions.
Xilinhaote fluorite mine was originally designed to use a 65° rock transfer angle to delineate security pillars.As mining continues to deepen,more and more ore resources are found within the delineation of the security pillars,resulting in a significant reduction in mining capacity,and seriously affecting the normal production of the mine.In order to solve this problem,on the basis of measuring the collapse range and accurately measuring the collapse angle,a new idea of using the mechanism of the critical bulk solid column to optimize the security pillars was proposed,this effectively solved the problem of excessive delineation of traditional security pillars,and avoided unnecessary waste of mineral resources.On-site application,the release of ore is about 51 thousand tons,with significant economic benefits.The security pillar optimization method can provide reference for mines with similar conditions.
引文
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[2]杨福军,高海川.高效浅孔留矿法的研究与探索[J].金属矿山,2007(6):84-86.YANG Fujun,GAO Haichuan.Research and exploration of high efficiency short-hole shrinkage method[J].Metal Mine,2007(6):84-86.
[3]张洪训,刘溪鸽,关凯,等.新城金矿竖井保安矿柱的三维圈定与模拟回采[J].金属矿山,2017(3):19-24.ZHANG Hongxun,LIU Xige,GUAN Kai,et al.3D delineation of the shaft safety pillar of Xincheng gold mine and its numerical excavation[J].Metal Mine,2017(3):19-24.
[4]宋卫东,陈志海,郭廖武,等.程潮铁矿保安矿柱控制开采相似模拟实验研究[J].矿业研究与开发,2009(4):1-4.SONG Weidong,CHEN Zhihai,GUO Liaowu,et al.Study on control mining of safety pillar by similarity simulation experiment in Chengchao iron mine[J].Mining Research and Development,2009(4):1-4.
[5]袁海平,王继伦,赵奎,等.采空区形态对地表塌陷分布影响研究[J].金属矿山,2011(11):25-28.YUAN Haiping,WANG Jilun,ZHAO Kui,et al.Study on the goaf form influence on distribution of surface subsidence[J].Metal Mine,2011(11):25-28.
[6]欧阳振华,蔡美峰,李长洪,等.北洺河铁矿地表塌陷机理研究[J].矿业研究与开发,2005,25(1):21-23.OUYANG Zhenhua,CAI Meifeng,LI Changhong,et al.Study on the mechanism of ground collapse in Beiminghe iron mine[J].Mining Research and Development,2005,25(1):21-23.
[7]黄平路,陈从新.厚覆盖层矿山地下开采地表塌陷机制分析[J].岩土力学,2010,31(S1):357-362.HUANG Pinglu,CHEN Congxin.Analysis of mechanism of surface subsidence caused by underground mining with thick overburden[J].Rock and Soil Mechanics,2010,31(S1):357-362.
[8]吉学文,解联库,于世波.塌陷空区治理及稳定性分析[J].中国矿业,2015,24(11):113-117.JI Xuewen,XIE Lianku,YU Shibo.Control and stability analysis of subsided mined-out area[J].China Mining Magazine,2015,24(11):113-117.
[9]宋德林,任凤玉,祁建东,等.西石门铁矿北区斜井保安矿柱圈定优化[J].金属矿山,2016(4):13-15.SONG Delin,REN Fengyu,QI Jiandong,et al.Delineation optimization of incline shaft safety pillar for north mining area of Xishimen iron[J].Metal Mine,2016(4):13-15.
[10]郑建明,任凤玉,唐烈先.西石门铁矿散体临界深度预测与地表陷落范围控制[J].采矿与安全工程学报,2014,31(4):631-634.ZHENG Jianming,REN Fengyu,TANG Liexian.Critical depth prediction and surface subsidence range controlling based on Xishimen mine[J].Journal of Mining&Safety Engineering,2014,31(4):631-634.
[11]李海英,任凤玉,陈晓云,等.深部开采陷落范围的预测与控制方法[J].东北大学学报:自然科学版,2012,33(11):1624-1627.LI Haiying,REN Fengyu,CHEN Xiaoyun,et al.The method for surface subsidence predicting and controlling the range of during deep ore-body mining[J].Journal of Northeastern University:Natural Science,2012,33(11):1624-1627.
[12]任凤玉,张东杰,李海英,等.露天地下协同采矿充填方法[J].金属矿山,2015(3):28-31.REN Fengyu,ZHANG Dongjie,LI Haiying,et al.An approach of open-pit and underground cooperative mining and filling[J].Metal Mine,2015(3):28-31.