巨大复杂群采空区稳定性数值模拟及治理措施研究
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摘要
在详细调查了矿山巨大复杂群采空区分布状况的基础上,建立了与其赋存状态相近的三维数值模型,运用FLAC3D软件进行数值模拟计算并获得结果。根据应力、位移和塑性区的分布规律,对采空区的稳定性进行了深入的分析研究,揭示了稳定性较差采空区的成因并明确了存在安全隐患的区域,由此提出了合理规划充填顺序、加固原生矿柱、增加人工矿柱和建立三维实时监测网的综合治理措施,保障了矿山的安全生产。
Based on the survey of the huge complicated goaf group distribution in the mining area,a three-dimensional numerical model which had similar shape with goaf group was established.The FLAC3 Dsoftware was used for numerical simulation calculation and the results were obtained.According to the distribution law of the stress,displacement and plastic area,the stability of goaf was studied in detail,the causes of poor stability for goaf were revealed and the potential safety hazard areas were determined.Thus the comprehensive treatment measures were proposed including the reasonable planning of the filling sequence,the reinforcement of the original pillars,the new increase of artificial pillars and the establishment of 3Dreal-time detection system,so as to ensure the mine safety production.
Based on the survey of the huge complicated goaf group distribution in the mining area,a three-dimensional numerical model which had similar shape with goaf group was established.The FLAC3 Dsoftware was used for numerical simulation calculation and the results were obtained.According to the distribution law of the stress,displacement and plastic area,the stability of goaf was studied in detail,the causes of poor stability for goaf were revealed and the potential safety hazard areas were determined.Thus the comprehensive treatment measures were proposed including the reasonable planning of the filling sequence,the reinforcement of the original pillars,the new increase of artificial pillars and the establishment of 3Dreal-time detection system,so as to ensure the mine safety production.
引文
[1]潘懿,唐绍辉,黄英华.群采空区及其诱发高陡边坡地质灾害综合治理技术研究[J].矿业研究与开发,2014,34(4):92-94.
[2]沈慧明,许振华,朱利平,等.残矿回采顺序优化与复杂采空区稳定性的有限元模拟研究[J].中国矿业,2011,20(1):78-81.
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[7]张宝,李向东,周益龙,等.复杂采空区群处理及隐患资源回收综合技术[J].矿业研究与开发,2014,34(4):16-20.
[8]赵树果,苏东良,李占金,等.某铁矿采空区的治理及治理效果分析[J].矿业研究与开发,2015,35(9):53-55.
[9]张培根.良山铁矿井下采空区地压管理探索[J].江西冶金.2014,34(3):42-44.
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[2]沈慧明,许振华,朱利平,等.残矿回采顺序优化与复杂采空区稳定性的有限元模拟研究[J].中国矿业,2011,20(1):78-81.
[3]ITASCA Consulting Group.Inc.USER'S GUIDE[M].Min neapolis,Minnesota:1999.
[4]ITASCA Consulting Group.Inc.THEORY AND BACK GROUND[M].Minneapolis,Mi-nnesota:1999.
[5]陈育民,徐鼎平.FLAC/FLAC3D基础与工程实例[M].北京:中国水利水电出版社,2009.
[6]Brady B H G,Brown E T.地下采矿岩石力学[M].佘诗刚,朱万成,赵文,等译.北京:科学出版社,2011.
[7]张宝,李向东,周益龙,等.复杂采空区群处理及隐患资源回收综合技术[J].矿业研究与开发,2014,34(4):16-20.
[8]赵树果,苏东良,李占金,等.某铁矿采空区的治理及治理效果分析[J].矿业研究与开发,2015,35(9):53-55.
[9]张培根.良山铁矿井下采空区地压管理探索[J].江西冶金.2014,34(3):42-44.
[10]张五兴,宋嘉栋,谷新建.三道庄矿区采空区处理方案优化[J].矿业研究与开发,2011,31(4):78-79.