采动影响下断层活化过程的数值模拟分析
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摘要
在RFPA2D-FLOW软件基础上,利用倾角30°、60°的断层力学模型,分别对宁东煤田2#煤采掘工作面的开挖过程进行了数值模拟,模拟出断层及断层两盘岩体受力和破坏的动态变化,分析出2#煤顶、底板岩层及断层在断层活化过程中应力特征和破坏状态的变化规律。
On the basis of RFPA2 D-FLOW software,numerical simulation of mechanical model of fault with dip 30°and 60°was carried out respectively for the mining process of No.2 coal seam heading and wining faces in Ningdong coal field,showing the dynamic changes on stress and failure of fault and cross-fault rock mass,and drawing the conclusion on the changes rule of stress characteristic and failure state in fault activation process.
On the basis of RFPA2 D-FLOW software,numerical simulation of mechanical model of fault with dip 30°and 60°was carried out respectively for the mining process of No.2 coal seam heading and wining faces in Ningdong coal field,showing the dynamic changes on stress and failure of fault and cross-fault rock mass,and drawing the conclusion on the changes rule of stress characteristic and failure state in fault activation process.
引文
[1]王钦东,戴磊,曹瑞伟.构筑安全隔水层防范断层活化突水[J].煤炭技术,2014,33(10):42-45.
[2]尹会永.潘西煤矿煤层底板突水机理及预测预报研究[D].青岛:山东科技大学,2005.
[3]许磊,魏世明.逆断层活化诱发冲击地压的危险性研究[J].煤炭技术,2015,34(1):98-101.
[4]姜耀东,王涛,赵毅鑫,等.采动影响下断层活化规律的数值模拟研究[J].中国矿业大学学报,2013,42(1):1-5.
[5]晏鄂川,唐辉明.工程岩体稳定性评价与利用[M].武汉:中国地质大学出版社,2002.
[2]尹会永.潘西煤矿煤层底板突水机理及预测预报研究[D].青岛:山东科技大学,2005.
[3]许磊,魏世明.逆断层活化诱发冲击地压的危险性研究[J].煤炭技术,2015,34(1):98-101.
[4]姜耀东,王涛,赵毅鑫,等.采动影响下断层活化规律的数值模拟研究[J].中国矿业大学学报,2013,42(1):1-5.
[5]晏鄂川,唐辉明.工程岩体稳定性评价与利用[M].武汉:中国地质大学出版社,2002.