The results show that vertical stress is equal to overburdenstress at shallow level. Maximum principal stress is sub horizontal stress in the NE direction.
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。
2
The Overburden of tunnel construction is increasing recently. Rocks in the depths have high strength and high stress condition.
隧道工程开挖深度有逐渐增加的趋势,深部岩石具高强度及高应力环境。
3
Abstract: Mining stress appears singularity under the influence of faults of hard thick overburden.