In order to study the importance of foundation pit excavation sequence in the construction of adjacent railway foundation pits,control the impact of foundation pit construction on the railway,and protect the safety of railway operations,this paper relies on the foundation pit of an underground garage adjacent to a high-speed railway bridge and simulated and analyzed two different excavation methods of a long foundation pit by the finite element software called Midas gts,and compared them with actual monitoring data to verify the rationality of the numerical simulation.The results show that the segmented excavation of the long foundation pit plays an important role in controlling the deformation of the adjacent railway,reducing the vertical,cross-bridge and along-bridge displacements to varying degrees.
关键词
分段开挖/邻近铁路/数值模拟/控制变形
Key words
segmented excavation/adjacent railway/numerical simulation/deformation control
维普
万方数据