Chow Tai Fook Center In Tianjin Binhai Deep Excavation Project Structural Stability

With the rapid development of urban construction, more and more high-rise buildings, foundation pit is also more and more deep, so choosing economic, practical foundation pit supporting scheme as to ensure the construction quality and safety is very important link. Foundation pit engineering including design, construction and foundation pit supporting system of earthwork excavation, is a comprehensive very strong system engineering, has a strong regional and very strong individuality, inherit the earth pressure and its bolting system has stronger time-space effect. Tall buildings have sprung up, increasing of deep foundation pit excavation depth, excavation area is becoming more and more big.Engineering for many years, because of the excavation support’s mistake, instability and failure of foundation pit, causing great economic losses of thering is no lack of the number; For foundation pit supporting design structure is unreasonable, make project cost unnecessarily increase is inevitable, so targeted formulate optimization(safe, reliable and economic) of the foundation pit excavation supporting structure design, to ensure the construction of basement, avoid caused by excavation adjacent to the ground, building, content, and the deformation and failure of surrounding municipal facilities.Belongs to hidden underground excavation engineering, how to guarantee the quality and safety under the premise of minimizing engineering cost, is the construction sector’s concerns. Study of deep foundation pit retaining structure deformation rule and structure stability has important engineering value.