滥泥坪铜矿三维地应力测量及巷道布置优化研究
谢也真,曹平,陈昊然

Three-dimensional In-situ Stress Measurement and Optimization of Roadway Layout in Lanniping Copper Mine
Yezhen XIE,Ping CAO,Haoran CHEN
图5 巷道开挖水平断面应力分布图
注:σn为巷道水平方向的帮部应力;σHσh分别为最大和最小主应力
Fig.5 Horizontal section distribution diagram of stress while drilling gateways