In the light of the pressure existing in the coal-mining deep underground in Lu well field, based on the analyses 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 ……
Key words well body stress crust stress coal-mining
regional geology