摘要
初始地应力是地下工程围岩稳定与支护结构设计的一个基本参数．在山东唐口煤矿井下回风石门、西翼辅助运输石门不同构造部位的三个测点采用空心包体应力解除法进行了现场应力实测工作．测点的埋深达1024-1030m．文章详细介绍了三维地应力及其主应力的计算原理，并根据矿区实测地应力资料，分析了矿井地应力大小、方向变化和分布特征，进而获得了该矿区地应力的定性及定量资料，还初步分析了地应力对巷道稳定性的影响，为巷道的支护结构设计工作提供可靠依据．
In-situ stress is a basic parameter to the stability of surrounding rocks and supporting structure of underground projects. Stress measurement was carried out at Tangkou Coal Mine of Shangdong province at three different structural positions, each as deep as 1024-1030 m, in the ventilated and the west assistance conveyance stone door by hollow inclusion measuring method. This paper provides a detailed introduction of the calculation of the 3D in situ stresses and principal stresses, and with reference to the measured stress data analyzes the strength of in- situ stresses, changes of directions and distribution characteristics, and further obtains set data about in-situ stresses in the mine area. This paper also gives a primary analysis of the effect of in-situ stresses on the stability of roadways, which provides reliable reference for the design of supporting structure.
出处
《徐州工程学院学报》
2006年第9期41-46,共6页
Journal of Xuzhou Istitute of Technology
关键词
深井
地应力测量
分布特征
围岩稳定性
deep mine
in situ stress measurement
distribution characteristics
the stability of roadway
