矿山地下开采诱发地表沉陷的数值模拟
Numerical Simulation of Surface Subsidence Induced by Underground Mining
-
摘要: 在对五道羊岔矿区岩体宏观结构调查及室内岩石力学试验的基础上,采用FLAC有限差分法对矿区开采诱发的地表沉陷变形进行了数值模拟研究,得出矿区5个采区在不同采矿技术参数下的围岩移动及地表变形的规律。基于数值模拟结果,确定了5个采区在开采完成后的地表沉陷边界,并估算了各采区的地表塌陷体积。Abstract: Based on in-situ investigation of rock mass macrostructure and indoor rock mechanical experiments in Wudaoyangcha Mining Area, the surface subsidence deformation induced by mining in mining area is studied by FLAC finite-difference method. Based on simulation results, the characteristics of surface deformation and rock mass movement in five sub-mining areas under different mining techniques were obtained. According to the analysis and determination of subsidence threshold, subsidence boundary of the five sub-mining areas is delineated, and the corresponding subsidence volume is calculated as well.
-
-
[1] 陈元非,王磊,查剑锋.矿山开采沉陷预计与分析[J].煤矿安全,2017,48(1):99-106. [2] 王军保,刘新荣,刘小军.开采沉陷动态预测模型[J].煤炭学报,2015,40(3):516-521. [3] 崔希民,邓喀中.煤矿开采沉陷预计理论与方法研究评述[J].煤炭科学技术,2017,45(1):160-169. [4] 刘宝琛,戴华阳.概率积分法的又来与研究进展[J].煤矿开采,2016,21(2):1-3. [5] 朱晓峻,郭广礼,方齐.概率积分法预计参数反演方法研究进展[J].金属矿山,2015,44(4):173-177. [6] 秦世界,张和生,李国栋.基于FLAC3D的煤矿开采沉陷预计及与概率积分法的对比分析[J].煤炭工程,2014,46(6):96-102. [7] 范玮刚,冯光明,韩晓东,等.浅埋薄煤层超高水充填开采地表移动规律[J].能源技术与管理,2010(5):19. [8] 刘剑,郝兵元,黄辉.大采宽工作面开采沉陷规律的FLAC3D模拟研究[J].煤炭技术,2014,33(11):132. [9] 刘康,轩大洋.长壁全部充填与条带充填开采沉陷控制效果对比[J].煤矿安全,2013,44(11):60-63. [10] 张文泉,刘海林,赵凯.厚松散层薄基岩条带开采地表沉陷影响因素研究[J].采矿与安全工程学报,2016, 33(6):1065-1071. [11] 刘玉成.煤层开采地表移动过程的FLAC3D模拟研究[J].煤炭科学技术,2012,40(5):93-95. [12] 李想,吕玲芝,谢晓斌.FLAC3D在圈定地表移动带中的应用[J].有色金属科学与工程,2011(4):76.
计量
- 文章访问数: 155
- HTML全文浏览量: 0
- PDF下载量: 0