采空区地表沉降影响因素的研究
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摘要
为了研究采空区的采深、采宽、采厚和上覆岩性与采空区地表沉降之间的关系,以及其各自对地表沉降影响的主次顺序。将采空区地表沉降的4个主要影响因素定量的分为4个等级,运用正交实验的方法结合有限元软件ANSYS对其进行数值模拟计算,计算出各模拟工况下的采空区地表沉降。且为了验证正交实验工况下各因素对于地表沉降影响的准确性,还运用控制变量法设计了工况对其进行验证。对于采空区的地表沉降而言,各主要影响因素的主次顺序为:采宽、采厚、采深、上覆岩性,且两种实验方法计算结果一致,表明正交实验法的准确性。对采空区地表的利用与处理和矿区的安全与防治具有一定的指导意义。
The effects of factors including mining depth,width,thickness,and overlying rock properties on goaf surface settlements and their influence degrees are studied in this paper.Each of the 4 main factors is quantitatively divided into four grades.The orthogonal experiment method is applied,and numerical simulation using finite element software ANSYS is performed to calculate the settlements under each working condition.In order to verify the accuracy of the various factors' influence on the settlement,the control variates method is also introduced to develop the working condition.The study results indicate that the influencing factors on the settlements,in the order of greatest to least,are mining width,thickness,depth and overlying rock properties.The results from orthogonal experiment method and control variates method are consistent,indicating that the orthogonal experimental method is accurate.This study provides not only guidance on goaf utilization and treatment but also the mining area safety and prevention.
The effects of factors including mining depth,width,thickness,and overlying rock properties on goaf surface settlements and their influence degrees are studied in this paper.Each of the 4 main factors is quantitatively divided into four grades.The orthogonal experiment method is applied,and numerical simulation using finite element software ANSYS is performed to calculate the settlements under each working condition.In order to verify the accuracy of the various factors' influence on the settlement,the control variates method is also introduced to develop the working condition.The study results indicate that the influencing factors on the settlements,in the order of greatest to least,are mining width,thickness,depth and overlying rock properties.The results from orthogonal experiment method and control variates method are consistent,indicating that the orthogonal experimental method is accurate.This study provides not only guidance on goaf utilization and treatment but also the mining area safety and prevention.
引文
[1]邓岁伟,冯锐,赵铭久.基于ANSYS的采空区稳定性数值模拟分析[J].采矿技术,2018,18(1):34-37Deng Suiwei,Feng Rui,Zhao Mingjiu.Numerical Simulation Analysis of Goaf Stability Based on ANSYS[J].Mining Technology,2018,18(1):34-37
[2]康彦.采空区地表变形规律及地基稳定性评价[J].煤矿开采,2018,23(2):65-67Kang Yan.Surface Base Stability Evaluation and Goaf Surface Deformation Law[J].Coal Mining Technology,2018,23(2):65-67
[3]张洋,李占金,李示波.等.某矿采空区数值模拟研究与稳定性分析[J].矿业研究与开发,2013,33(4):59-61Zhang Yang,Li Zhanjin,Li Shibo,et al.Numerical Simulation and Stability Analysis of a Mine Goaf[J].Mining Research and Development,2013,33(4):59-61
[4]王新民,王长军,张钦礼,等.基于ANSYS程序下的采场稳定性分析[J].金属矿山,2008(8):17-20+25Wang Xinmin,Wang Changjun,Zhang Qinli,et al.ANSYSBased stability Analysis of Scope[J].Metal Mine,2008(8):17-20+25
[5]张世良.基于实测数据的地表沉降预测优化研究[J].煤矿开采,2017,22(4):70-74Zhang Shiliang.Study of Surface Subsidence Prediction Optimization Based on Practical Data[J].Coal Mining Technology,2017,22(4):70-74
[6]柴静静.采空区地质特点及稳定性有限元分析[J].煤炭与化工,2017,40(9):66-68Chai Jingjing.Finite element analysis of geological features and stability of coal mine goaf[J].Coal and Chemical Industry,2017,40(9):66-68
[7]赵付万,徐世光,黄建国,等.数值模拟在采空区对地表稳定性影响分析中的应用[J].矿产与地质,2017,31(4):820-825Zhao Fuwan,Xu Shiguang,Huang Jianguo,et al. Application of numerical simulation on the analysis of the influence of miningout area to the surface stability[J].Mineral Resources and Geology,2017,31(4):820-825
[8]陈赞成,侯克鹏,杨八九.某矿采空区稳定性三维有限元数值模拟[J].有色金属,2010,62(3):142-145Chen Wei,Hou Kepeng,Yang Bajiu.3D finite element numerical simulation on Gob stability of some mine[J].Nonferrous Metals,2010,62(3):142-145
[9]张德鹏.有限元数值模拟分析采空区地基稳定性[J].山西建筑,2015,41(19):74-76Zhang Depeng.On goaf foundation stability with finite element numeric simulation analysis[J].SHANXI Architecture,2015,41(19):74-76
[10]孙超,薄景山,刘红帅.采空区地表沉降影响因素研究[J].吉林大学学报(地球科学版),2009,39(3):498-502Sun Chao,Biao Jingshan,Liu Hongshuai.Study on Influencing Factors of Ground Settlement over Mined-Out Area[J].Journal of Jilin University(Earth Science Edition),2009,39(3):498-502
[11]容宇.采空区三维建模及稳定性数值模拟研究[J].采矿技术,2018,18(6):31-34Rong Yu.Three-dimensional modeling of goaf and numerical simulation of stability[J].Mining Technology,2018,18(6):31-34
[12]王金喜,李彦恒,孙利辉.采空区地表移动变形预计研究[J].矿业安全与环保,2013,40(5):5-7+11Wang Jinxi,Li Yanheng,Sun Lihui.Predictive Study on Surface Movement and Deformation in Mined-out Area[J].Mining Safety&Environmental Protection,2013,40(5):5-7+11
[13]张海波,宋卫东.基于FLAC3D数值模拟的采空区稳定性分析[J].黄金,2013,34(3):31-34Zhang Haibo,Song Weidong.Analysis on the stability of mined cavity based on FLAC 3D numerical simulation[J].Gold,2013,34(3):31-34
[14]陈雨.基于ANSYS的大兴井田采空区地基稳定性分析与治理方法研究[D].辽宁工程技术大学,2008Chen Yu.The stability analysis of Daxing Minded-out area foudation and treatment researce based on ANSYS[D].Liaoning Technology University,2008
[15]万战胜.公路下伏采空区地表变形及处治范围研究[D].长安大学,2011Wan Zhansheng.Research on surface deformation and treatment Range of highway Mined-oout Area[D].Chang'an University,2011
[2]康彦.采空区地表变形规律及地基稳定性评价[J].煤矿开采,2018,23(2):65-67Kang Yan.Surface Base Stability Evaluation and Goaf Surface Deformation Law[J].Coal Mining Technology,2018,23(2):65-67
[3]张洋,李占金,李示波.等.某矿采空区数值模拟研究与稳定性分析[J].矿业研究与开发,2013,33(4):59-61Zhang Yang,Li Zhanjin,Li Shibo,et al.Numerical Simulation and Stability Analysis of a Mine Goaf[J].Mining Research and Development,2013,33(4):59-61
[4]王新民,王长军,张钦礼,等.基于ANSYS程序下的采场稳定性分析[J].金属矿山,2008(8):17-20+25Wang Xinmin,Wang Changjun,Zhang Qinli,et al.ANSYSBased stability Analysis of Scope[J].Metal Mine,2008(8):17-20+25
[5]张世良.基于实测数据的地表沉降预测优化研究[J].煤矿开采,2017,22(4):70-74Zhang Shiliang.Study of Surface Subsidence Prediction Optimization Based on Practical Data[J].Coal Mining Technology,2017,22(4):70-74
[6]柴静静.采空区地质特点及稳定性有限元分析[J].煤炭与化工,2017,40(9):66-68Chai Jingjing.Finite element analysis of geological features and stability of coal mine goaf[J].Coal and Chemical Industry,2017,40(9):66-68
[7]赵付万,徐世光,黄建国,等.数值模拟在采空区对地表稳定性影响分析中的应用[J].矿产与地质,2017,31(4):820-825Zhao Fuwan,Xu Shiguang,Huang Jianguo,et al. Application of numerical simulation on the analysis of the influence of miningout area to the surface stability[J].Mineral Resources and Geology,2017,31(4):820-825
[8]陈赞成,侯克鹏,杨八九.某矿采空区稳定性三维有限元数值模拟[J].有色金属,2010,62(3):142-145Chen Wei,Hou Kepeng,Yang Bajiu.3D finite element numerical simulation on Gob stability of some mine[J].Nonferrous Metals,2010,62(3):142-145
[9]张德鹏.有限元数值模拟分析采空区地基稳定性[J].山西建筑,2015,41(19):74-76Zhang Depeng.On goaf foundation stability with finite element numeric simulation analysis[J].SHANXI Architecture,2015,41(19):74-76
[10]孙超,薄景山,刘红帅.采空区地表沉降影响因素研究[J].吉林大学学报(地球科学版),2009,39(3):498-502Sun Chao,Biao Jingshan,Liu Hongshuai.Study on Influencing Factors of Ground Settlement over Mined-Out Area[J].Journal of Jilin University(Earth Science Edition),2009,39(3):498-502
[11]容宇.采空区三维建模及稳定性数值模拟研究[J].采矿技术,2018,18(6):31-34Rong Yu.Three-dimensional modeling of goaf and numerical simulation of stability[J].Mining Technology,2018,18(6):31-34
[12]王金喜,李彦恒,孙利辉.采空区地表移动变形预计研究[J].矿业安全与环保,2013,40(5):5-7+11Wang Jinxi,Li Yanheng,Sun Lihui.Predictive Study on Surface Movement and Deformation in Mined-out Area[J].Mining Safety&Environmental Protection,2013,40(5):5-7+11
[13]张海波,宋卫东.基于FLAC3D数值模拟的采空区稳定性分析[J].黄金,2013,34(3):31-34Zhang Haibo,Song Weidong.Analysis on the stability of mined cavity based on FLAC 3D numerical simulation[J].Gold,2013,34(3):31-34
[14]陈雨.基于ANSYS的大兴井田采空区地基稳定性分析与治理方法研究[D].辽宁工程技术大学,2008Chen Yu.The stability analysis of Daxing Minded-out area foudation and treatment researce based on ANSYS[D].Liaoning Technology University,2008
[15]万战胜.公路下伏采空区地表变形及处治范围研究[D].长安大学,2011Wan Zhansheng.Research on surface deformation and treatment Range of highway Mined-oout Area[D].Chang'an University,2011