Research on the Supporting Design and Application of Deep Foundation Pits with Pile-Wall Integration and the Topdown Construction Method in the Complex Environment
There are often quite a large scale of old buildings and dense municipal pipe network around deep pits in old urban areas,and they are very sensitive to deformation,which has a very high requirement for deformation control of deep pit support structure during excavation.In view of the complex environment around the deep pit,the support structure design scheme of pile-wall integration and topdown construction method is adopted.The in-fluence of deep pit excavation on the surrounding buildings and roads is analyzed by using Lizhengsoftware and PLAXIS finite element software.The analysis results show that the support structure scheme can effectively protect the building and road pipeline around the deep pit.
Complex environmentDeep foundation pitPile-wall integrationTopdown construction method
NETL
NSTL
万方数据
维普
