摘要
为对新集一矿进行地应力测量,在前期勘探时,采用水压致裂法对该矿区典型位置S-5号孔和S-9号孔的地应力场进行测试。测试结果表明:该矿区应力场以水平应力为主,具有明显的构造应力特征,且最大、最小和垂直主应力均随深度的增加而增加。实测该矿区最大水平主应力为13.95～25.23 MPa,方向近于NE向,最小水平主应力为12.16～21.17 MPa。通过对比分析测试结果与淮南矿区的区域地质构造地应力场是基本吻合的。
In order to have a ground stress measurement in Xinji No.1 Mine,during the initial geological exploration period,the hydraulic fracturing method was applied to measure the ground stress fields of the typical located No.S-5 borehole and No.S-9 borehole in the mine.The analysis and study on the measured results showed that the stress fields in the mine were mainly in horizontal with the obvious tectonic stress features.The max,min and vertical main stress would be increased with the mine depth increased.The max horizontal main stress measured in the mine was 13.95～25.23 MPa and the direction of the stress was close to NE.The min horizontal main stress was 12.16～21.17 MPa.In comparison with the analysis,the measured results and the regional geological tectonic ground stress field in the Huainan Mining Area were basically fitted to each other.
出处
《煤炭科学技术》
CAS
北大核心
2010年第8期15-17,21,共4页
Coal Science and Technology
基金
国家自然科学基金(青年基金)资助项目(40702054)
教育部博士点基金(新教师基金)资助项目(20070290528)
关键词
水压致裂法
地应力测量
构造应力
新集矿区
hydraulic fracturing method
ground stress
tectonic stress
Xinji Mining Area
