【摘要】 在实测地应力的基础上 ,对测量结果进行了分析。结果表明 :显德汪煤矿垂直应力近似等于上覆岩层的自重应力 ,最大主应力为北东方向 ,且为近水平压应力。研究结果与华北地区地应力场总体变化规律相类似更多还原

【Abstract】 Based on measure the three dimensional in situ stress, the results of measurement is analyzed. The results show that vertical stress is equal to overburden stress at shallow level. Maximum principal stress is sub horizontal stress in the NE direction. The study results accord with the general regularity of the stress field in North China.更多还原