摘要
为解决发耳二矿地质力学参数匮乏困境,对发耳二矿102回风石门、118运输石门及119运输石门使用水力水压致裂法开展地应力测试,确定了该矿测点附近的地应力场分布规律。经测试所得规律中,主应力大小分布规律为σ_(H)>σ_(v)>σ_(h),最大水平主应力与垂直应力比值σH/σv的结果介于1.23~1.25,表明该区域最大水平主应力与垂直应力差异不大,发耳二矿的地应力大小与整个贵州矿区的构造应力场相比,属于中等应力区。这些测试数据可为未来矿井支护设计的优化提供重要参考。
In order to solve the shortage of geomechanical parameters in Faer No.2 Coal Mine,the measurement of geostress was carried out by hydraulic fracturing method in 102 return,118 transport and 119 transport stone gates of Faer No.2 Coal Mine.Among the laws tested,the main stress size distribution law is σ_(H)>σ_(v)>σ_(h),and the maximum horizontal main stress and vertical stress ratioσH/σv is between 1.23 and 1.25,indicating that the maximum vertical main stress and the vertical stress are not different in this region,compared with the structural stress field of the whole mining area in Guizhou,the stress field of Faer NO.2 Coal Mine belongs to medium stress area.These test data can provide important references for future optimization of mine support design.
作者
何金全
马振乾
王会
He Jinquan;Ma Zhenqian;Wang Hui(Guizhou Panjiang Hengpu Coal Industry Co.,Ltd.,Liupanshui 553000,China;School of Mining,Guizhou University,Guiyang 550025,China)
出处
《当代化工研究》
2025年第13期28-30,共3页
Modern Chemical Research
基金
贵州省科技厅项目(黔科合成果-LH〔2024〕重大024)。
关键词
水压致裂
地应力场
分布规律
应力大小
water pressure fracturing
stress field
distribution law
stress magnitude
