The Appiication And Research Of Underground Continuous Wall In Qiushui Square Subway Station Foundation Pit In Nanchang

Underground continuous wall in foundation pit supporting wall retaining structure has a wide application in our country. The construction of method for the wall has little vibration, low noise. The wall has well stiffness, good anti-seepage performance, less disturbance on the surrounding foundation, high efficiency, short time limit, reliable quality, and no reducing underground water level, so leading to have the very good economic and social benefits. This paper systemally introduces the calculation method of underground continuous wall, according to the actual situation of the underground continuous wall of foundation pit supporting engineering in Nanchang, using MIDAS/GTS software to numerical simulation analysis construction stage of Qiushui square subway station deep foundation pit supporting engineering, discussing the displacement regularity of surrounding soil and wall. Comparing the measured data with the numerical simulation results and the calculation results of Lizheng software, getting some valuable conclusions, including Numerical simulation analysis result is the foundation pit excavation surface uplift and excavation depth is approximate linear relationship; in the process of deep foundation pit excavation, the soil horizontal displacement show the maximum value appeared in the near of the third passage,so it should be paid attention to the size of the supporting structure and the protection, and so on. The paper provide the reference for Nanchang subway design and construction for later.