岩体应力状态对煤矿开采影响分析

针对吕家坨井田深部开采的矿山压力问题，在区域地质构造分析的基础上，采用空芯包体测量方法，对吕家挖井田进行了地应力测量。结果表明：吕家坟矿地应力场属于水平应力场，井田内存在着较大的水平构造应力。测量成果为井下工程设计、稳定性分析、巷道合理布局和锚杆支护设计提供了依据，并为进一步研究井田岩体应力状态和应力场的区域预测奠定了基础。

Analysis of the Effect of Well Body Stress on Coal -mining

In the light of the pressure existing in the coal-mining deep underground in Lu well field, based on the analysis in the regional geological structure, the empty core body measuring method is adopted to measure the crust stress in this field. The result is that the crust stress is a kind of level stress field and also there exists large level structural stress in it. This measurement offers basis for engineering design and stability analysis, rational tunnel arrangement and props in the pit, and lays foundation for further study on well body stress state and regional prediction for stress field.