【摘要】 在丘陵地区进行地下工程开挖将破坏坡体原有的稳定性,并形成新的平衡体系。应用随机介质理论,找出地下开挖影响区域内不同空间位置上的附加形变应力场大小及其随工程开挖的演变规律,再结合边坡稳定性的极限平衡分析理论与方法,将两种作用的效应叠加起来,推导出边坡稳定性的综合评价方法,在此基础上,通过改变地下工程的开挖宽度与深度,探讨其对斜坡体稳定性的影响特点,并总结其变化规律。更多还原

【Abstract】 In hills region, a new equilibrium system will formed after the original stability of slop body was collapsed by excavation works of underground engineering. By use of the random medium theory, the additional deformation stress field of any space position in the influence area of excavation works and its evolvement rule can be found out. The two action effects can be superposed with limit equilibrium analysis theory and method of slop stability will be derivated. On this basis, the influenced features and its evolvement rule of slop stability by changing the width and depth of the underground engineering was discussed.更多还原