千米深井深部地应力测量与分布规律探索
|
摘要
为得到云南某千米深井深部地应力分布规律,采用空心包体地应力测量方法,对矿山深部开采区域进行三维地应力测量。基于实测数据,分析矿区深部地应力分布,得出深部原岩应力以水平应力为主,最大主应力为64.17MPa,地应力整体属于高应力水平。最大水平主应力方向在NNW方向,与矿区所在的区域构造应力场方向呈现高度的一致性。地应力测量结果为矿山深部高应力巷道支护以及高应力灾害防控提供重要基础数据。
In order to obtain the distribution law of deep ground stress in a deep mine in Yunnan,a threedimensional in-situ stress measurement is carried out on the deep mining area of the mine by using the hollow inclusion geostress measurement method.Based on the measured data,the distribution of deep stress in the mining area is analyzed.It is concluded that the stress of the deep original rock is mainly horizontal stress,and the maximum principal stress is 64.17 MPa.The overall stress is at a high level.The direction of the maximum horizontal principal stress is in the NNW,which is highly consistent with the direction of the tectonic stress field in the region where the mine is located.The results of in-situ stress measurement provide important basic data for roadway support,disaster prevention and control in the highly-stressed area at depths.
In order to obtain the distribution law of deep ground stress in a deep mine in Yunnan,a threedimensional in-situ stress measurement is carried out on the deep mining area of the mine by using the hollow inclusion geostress measurement method.Based on the measured data,the distribution of deep stress in the mining area is analyzed.It is concluded that the stress of the deep original rock is mainly horizontal stress,and the maximum principal stress is 64.17 MPa.The overall stress is at a high level.The direction of the maximum horizontal principal stress is in the NNW,which is highly consistent with the direction of the tectonic stress field in the region where the mine is located.The results of in-situ stress measurement provide important basic data for roadway support,disaster prevention and control in the highly-stressed area at depths.
引文
[1]谢和平,高峰,鞠杨.深部岩体力学研究与探索[J].岩石力学与工程学报,2015,34(11):2162-2178.XIE Heping,GAO Feng,JU Yang.Research and development of rock mechanics in deep ground engineering[J].Chinese Journal of Rock Mechanics and Engineering,2015,34(11):2162-2178.
[2]谢和平.“深部岩体力学与开采理论”研究构想与预期成果展望[J].工程科学与技术,2017,49(2):1-16.XIE Heping.Research framework and anticipated results of deep rock mechanics and mining theory[J].Advanced Engineering Sciences,2017,49(2):1-16.
[3]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.HE Manchao,XIE Heping,PENG Suping,et al.Study on rock mechanics in deep mining engineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2803-2813.
[4]姜耀东,潘一山,姜福兴,等.我国煤炭开采中的冲击地压机理和防治[J].煤炭学报,2014,39(2):205-213.JIANG Yaodong,PAN Yishan,JIANG Fuxing,et al.State of the art review on mechanism and prevention of coal bumps in China[J].Journal of China Coal Society,2014,39(2):205-213.
[5]赵善坤,邓志刚,季文博,等.多期构造运动影响下区域地应力场特征及其对冲击地压的影响[J].采矿与安全工程学报,2019,36(2):306-314.ZHAO Shankun,DENG Zhigang,JI Wenbo,et al.Effects of multi-stage tectonic movement on regional tectonic stress characteristics and rockburst[J].Journal of China Coal Society,2019,36(2):306-314.
[6]焦满岱,刘涛.基于凯瑟效应的小厂坝矿区地应力分布规律研究[J].中国矿业,2019,28(3):161-165.JIAO Mandai,LIU Tao.Study on stress distribution law of in Xiaochangba mining area based on Kaiser effect[J].China Mining Magazine,2019,28(3):161-165
[7]韩晓玉.地应力套心解除法测量精度的校验方法研究[J].地下空间与工程学报,2019,15(1):256-261.HAN Xiaoyu.Research on calibrating method for measuring accuracy of in-situ stress by overcoring method[J].Chinese Journal of Underground Space and Engineering,2019,15(1):256-261.
[8]李远,王卓,乔兰,等.基于双温度补偿的瞬接续采型空心包体地应力测试技术研究[J].岩石力学与工程学报,2017,36(6):1479-1487.LI Yuan,WANG Zhuo,QIAO Lan,et al.Development of CSIRO cell with the compromised application of instantaneous data-logging no-power data-connection and twin temperature compensation techniques[J].Chinese Journal of Rock Mechanics and Engineering,2017,36(6):1479-1487.
[2]谢和平.“深部岩体力学与开采理论”研究构想与预期成果展望[J].工程科学与技术,2017,49(2):1-16.XIE Heping.Research framework and anticipated results of deep rock mechanics and mining theory[J].Advanced Engineering Sciences,2017,49(2):1-16.
[3]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2803-2813.HE Manchao,XIE Heping,PENG Suping,et al.Study on rock mechanics in deep mining engineering[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(16):2803-2813.
[4]姜耀东,潘一山,姜福兴,等.我国煤炭开采中的冲击地压机理和防治[J].煤炭学报,2014,39(2):205-213.JIANG Yaodong,PAN Yishan,JIANG Fuxing,et al.State of the art review on mechanism and prevention of coal bumps in China[J].Journal of China Coal Society,2014,39(2):205-213.
[5]赵善坤,邓志刚,季文博,等.多期构造运动影响下区域地应力场特征及其对冲击地压的影响[J].采矿与安全工程学报,2019,36(2):306-314.ZHAO Shankun,DENG Zhigang,JI Wenbo,et al.Effects of multi-stage tectonic movement on regional tectonic stress characteristics and rockburst[J].Journal of China Coal Society,2019,36(2):306-314.
[6]焦满岱,刘涛.基于凯瑟效应的小厂坝矿区地应力分布规律研究[J].中国矿业,2019,28(3):161-165.JIAO Mandai,LIU Tao.Study on stress distribution law of in Xiaochangba mining area based on Kaiser effect[J].China Mining Magazine,2019,28(3):161-165
[7]韩晓玉.地应力套心解除法测量精度的校验方法研究[J].地下空间与工程学报,2019,15(1):256-261.HAN Xiaoyu.Research on calibrating method for measuring accuracy of in-situ stress by overcoring method[J].Chinese Journal of Underground Space and Engineering,2019,15(1):256-261.
[8]李远,王卓,乔兰,等.基于双温度补偿的瞬接续采型空心包体地应力测试技术研究[J].岩石力学与工程学报,2017,36(6):1479-1487.LI Yuan,WANG Zhuo,QIAO Lan,et al.Development of CSIRO cell with the compromised application of instantaneous data-logging no-power data-connection and twin temperature compensation techniques[J].Chinese Journal of Rock Mechanics and Engineering,2017,36(6):1479-1487.