在地下工程中,如何考虑岩体初始应力的影响,是工程上很关心的问题。地下工程是在天然岩体中挖空成一定的几何形状并承受设计荷载的地下结构,它的围岩稳定性取决于被挖空的具有天然内预应力(初始应力,也叫地应力)的岩体中重分布应力对岩体地质因素的平衡条件,因此,岩体初始应力状况对地下工程围岩稳定性具有重要 In underground engineering, how to consider the influence of initial stress of rock mass is a problem that is very concerned about in engineering. Underground engineering is a subsurface structure that is hollowed out into a geometric shape and under design loads in a natural rock mass. Its stability depends on the nature of the excavated natural internal prestress (initial stress, also called in-situ stress) Therefore, the initial stress of rock mass is important to the stability of surrounding rock in underground engineering