Study On Construction Technology And Deformation Of Foundation Pit Of Hang Hai Road Station Of Zhengzhou

With the increasing of the urban population and the number of vehicles, shortage of urban space and traffic congestion is getting worse. Developing urban underground space can effectively solve this problem.In this process,deep foundation pits continue to emerge.At the same time, they may cause some problems columns, such as pit instability, buildings tilt, cracking, etc. It causes serious losses to the country and the people.Making a study on construction technique and transformation regulation research of the subway stations’ deep foundation pit is essential.In this paper,combined with deep foundation pit of Zhengzhou metro line no. 2Hang Hai road station, it focuses on the difficult problems of deep foundation pit construction.Combined with the specific situation of the project, it developed construction methods and monitoring programs, providing technical reference for information construction of similar deep excavations. And using the software Midas-GTS, which is a three-dimensional finite element numerical analysis, made a3 d modeling analysis for the whole process of deep excavation.It Focuses on the analysis of the deep excavation process, the horizontal displacement of the supporting structure, the bottom of the pit surface uplift and subsidence deformation excavation around the law. And the calculated results were compared with experimental data, and the results are simulate.Providing effective technical support for the future developing of deep foundation pit construction.