大理石地下开采顶板合理厚度研究
|
摘要
亿隆大理石石材矿山需在一定厚度的安全矿柱及风化层下进行地下石材开采,然而安全矿柱过厚会导致资源浪费,反之不能保证矿山生产安全。根据亿隆石材矿山的矿体特征,利用理论计算及FLAC3D软件分析了不同空区跨度下的安全矿柱合理厚度。经综合分析与研究,得到了不同空区跨度与顶板合理厚度的关系。基于亿隆石材矿山的最大开采跨度36m,同时考虑4.5m的风化层,推荐矿山留设28.5m的顶板合理厚度。
Yilong marble stone mines should be mined under certain thickness of safety pillars and weathering layer.However,the security pillar is too thick that will lead to the waste of resources,on the contrary,the safety of mine production cant be ensured.According to the characteristics of the ore bodies in Yilong stone mine,the reasonable thickness of safe pillar under different span of goaf was analyzed by theoretical calculation and FLAC3 Dsoftware.Through comprehensive analysis,the relationship between the various span of the empty area and the reasonable thickness of the roof was obtained.Based on the largest mining span is 36 min the mine and the thickness of weathering layer is 4.5 m,the reasonable thickness of roof in Yilong mine is recommended as 28.5 m.
Yilong marble stone mines should be mined under certain thickness of safety pillars and weathering layer.However,the security pillar is too thick that will lead to the waste of resources,on the contrary,the safety of mine production cant be ensured.According to the characteristics of the ore bodies in Yilong stone mine,the reasonable thickness of safe pillar under different span of goaf was analyzed by theoretical calculation and FLAC3 Dsoftware.Through comprehensive analysis,the relationship between the various span of the empty area and the reasonable thickness of the roof was obtained.Based on the largest mining span is 36 min the mine and the thickness of weathering layer is 4.5 m,the reasonable thickness of roof in Yilong mine is recommended as 28.5 m.
引文
[1]张兴,郭琳琳.经济新常态下矿山环境保护的制度供给策略[J].中国矿业,2017,26(1):13-16.ZHANG Xing,GUO Linlin.System supply strategy for mine environmental protection under the new normal economy[J].China Mining Magazine,2017,26(1):13-16.
[2]崔玉宁.地下开采在北京市汇源隆大理石厂的研究应用[J].中国矿业,2014,23(S1):169-171.CUI Yuning.Research and application of underground mining in Beijing Huiyuan Long Marble Plant[J].China Mining Magazine,2014,23(S1):169-171.
[3]林杭,曹平,李江腾,等.采空区临界安全顶板预测的厚度折减法[J].煤炭学报,2009,34(1):53-57.LIN Hang,CAO Ping,LI Jiangteng,et al.Thickness reduction method for predicting critical safety roof of goaf[J].Journal of China Coal Society,2009,34(1):53-57.
[4]徐长佑.露天转地下开采[M].武汉:武汉工业大学出版社,1990.
[5]吴伟东.地下采空区安全隔层厚度数值模拟分析[J].地下空间与工程学报,2006,2(3):449-452.WU Weidong.Numerical simulation and analysis of the thickness of safety barrier in underground goaf[J].Journal of Underground Space and Engineering,2006,2(3):449-452.
[6]林超,胡福祥.高陡边坡下露天地下联合开采隔离顶柱合理厚度的研究[J].金属矿山,2012(1):51-54.LIN Chao,HU Fuxiang.Study on the reasonable thickness of isolated roof pillar in open pit and underground combined mining under high and steep slope[J].Metal Mine,2012(1):51-54.
[7] SINGH G S P,SINGH U K,MURTHY V M S R.Applications of numerical modelling for strata control in mines[J].Geotechnical&Geological Engineering,2010,28(4):513-524.
[8] COGGAN J,GAO F,STEAD D,et al.Numerical modelling of the effects of weak immediate roof lithology on coal mine roadway stability[J].International Journal of Coal Geology,2012,90-91(1):100-109.
[9]陆广,罗周全,刘晓明,等.露天转地下开采隔层厚度安全分析[J].采矿与安全工程学报,2011,28(1):132-137.LU Guang,LUO Zhouquan,LIU Xiaoming,et al.Safety analysis of thickness of open-pit to underground mining separation[J].Journal of Mining and Safety Engineering,2011,28(1):132-137.
[10]张敏思,朱万成,侯召松,等.空区顶板安全厚度和临界跨度确定的数值模拟[J].采矿与安全工程学报,2012,29(4):543-548.ZHANG Minsi,ZHU Wancheng,HOU Zhaosong,et al.Numerical simulation of safe thickness and critical span of empty roof[J].Journal of Mining and Safety Engineering,2012,29(4):543-548.
[11]周宗红,侯克鹏,任凤玉.跑马坪铅锌矿采空区稳定性分析及控制方法[J].采矿与安全工程学报,2013,30(6):863-867.ZHOU Zonghong,HOU Kepeng,REN Fengyu.Paomaping lead-zinc mine goaf stability analysis and control methods[J].Journal of Mining and Safety Engineering,2013,30(6):863-867.
[12]岩小明,李夕兵,李地元,等.露天开采地下矿室隔离层安全厚度的确定[J].地下空间与工程学报,2006,2(4):666-671.YAN Xiaoming,LI Xibing,LI Diyuan,et al.Determination of safe thickness of isolation layer in underground chamber of open pit mining[J].Journal of Underground Space and Engineering,2006,2(4):666-671.
[13] WU R,XU J H,LI C,et al.Stress distribution of mine roof with the boundary element method[J].Engineering Analysis with Boundary Elements,2015,50:39-46.
[14]重庆市建设委员会.工程地质勘查规范:DBJ 50-043-2005[S].2005.
[15]刘培慧.基于应力边界法厚大矿体采场结构参数数值模拟优化研究[D]:长沙:中南大学,2009.
[16]张钦礼,陈秋松,胡威,等.露天转地下采矿隔离层研究[J].科技导报,2013,31(11):33-37.ZHANG Qinli,CHEN Qiusong,HU Wei,et al.Study on the isolation layer of open-pit to underground mining[J].Science and Technology Report,2013,31(11):33-37.
[2]崔玉宁.地下开采在北京市汇源隆大理石厂的研究应用[J].中国矿业,2014,23(S1):169-171.CUI Yuning.Research and application of underground mining in Beijing Huiyuan Long Marble Plant[J].China Mining Magazine,2014,23(S1):169-171.
[3]林杭,曹平,李江腾,等.采空区临界安全顶板预测的厚度折减法[J].煤炭学报,2009,34(1):53-57.LIN Hang,CAO Ping,LI Jiangteng,et al.Thickness reduction method for predicting critical safety roof of goaf[J].Journal of China Coal Society,2009,34(1):53-57.
[4]徐长佑.露天转地下开采[M].武汉:武汉工业大学出版社,1990.
[5]吴伟东.地下采空区安全隔层厚度数值模拟分析[J].地下空间与工程学报,2006,2(3):449-452.WU Weidong.Numerical simulation and analysis of the thickness of safety barrier in underground goaf[J].Journal of Underground Space and Engineering,2006,2(3):449-452.
[6]林超,胡福祥.高陡边坡下露天地下联合开采隔离顶柱合理厚度的研究[J].金属矿山,2012(1):51-54.LIN Chao,HU Fuxiang.Study on the reasonable thickness of isolated roof pillar in open pit and underground combined mining under high and steep slope[J].Metal Mine,2012(1):51-54.
[7] SINGH G S P,SINGH U K,MURTHY V M S R.Applications of numerical modelling for strata control in mines[J].Geotechnical&Geological Engineering,2010,28(4):513-524.
[8] COGGAN J,GAO F,STEAD D,et al.Numerical modelling of the effects of weak immediate roof lithology on coal mine roadway stability[J].International Journal of Coal Geology,2012,90-91(1):100-109.
[9]陆广,罗周全,刘晓明,等.露天转地下开采隔层厚度安全分析[J].采矿与安全工程学报,2011,28(1):132-137.LU Guang,LUO Zhouquan,LIU Xiaoming,et al.Safety analysis of thickness of open-pit to underground mining separation[J].Journal of Mining and Safety Engineering,2011,28(1):132-137.
[10]张敏思,朱万成,侯召松,等.空区顶板安全厚度和临界跨度确定的数值模拟[J].采矿与安全工程学报,2012,29(4):543-548.ZHANG Minsi,ZHU Wancheng,HOU Zhaosong,et al.Numerical simulation of safe thickness and critical span of empty roof[J].Journal of Mining and Safety Engineering,2012,29(4):543-548.
[11]周宗红,侯克鹏,任凤玉.跑马坪铅锌矿采空区稳定性分析及控制方法[J].采矿与安全工程学报,2013,30(6):863-867.ZHOU Zonghong,HOU Kepeng,REN Fengyu.Paomaping lead-zinc mine goaf stability analysis and control methods[J].Journal of Mining and Safety Engineering,2013,30(6):863-867.
[12]岩小明,李夕兵,李地元,等.露天开采地下矿室隔离层安全厚度的确定[J].地下空间与工程学报,2006,2(4):666-671.YAN Xiaoming,LI Xibing,LI Diyuan,et al.Determination of safe thickness of isolation layer in underground chamber of open pit mining[J].Journal of Underground Space and Engineering,2006,2(4):666-671.
[13] WU R,XU J H,LI C,et al.Stress distribution of mine roof with the boundary element method[J].Engineering Analysis with Boundary Elements,2015,50:39-46.
[14]重庆市建设委员会.工程地质勘查规范:DBJ 50-043-2005[S].2005.
[15]刘培慧.基于应力边界法厚大矿体采场结构参数数值模拟优化研究[D]:长沙:中南大学,2009.
[16]张钦礼,陈秋松,胡威,等.露天转地下采矿隔离层研究[J].科技导报,2013,31(11):33-37.ZHANG Qinli,CHEN Qiusong,HU Wei,et al.Study on the isolation layer of open-pit to underground mining[J].Science and Technology Report,2013,31(11):33-37.