论文部分内容阅读
地铁施工的基坑较深,而基坑降水必定引起周边环境的沉降。本文通过采用粘弹性元原理、稳定状态渗流原理并结合随机介质理法,推导出基坑降水引起的地表沉降的计算公式,再通过叠加原理,最终推导出开挖和降水分别引起的地表沉降公式。本文推导的方法在计算基坑课开挖和降水引起的地表沉降中具有一定的有效性。
Subway construction of deep foundation pit, and foundation pit precipitation will inevitably lead to the settlement of the surrounding environment. In this paper, by using viscoelastic element principle, steady state seepage principle and random medium method, the formula of surface settlement induced by foundation pit dewatering is deduced. Then, by superposition principle, the surface settlement formula induced by excavation and precipitation is derived. The method deduced in this paper has some validity in calculating the ground subsidence caused by excavation and precipitation in excavation.