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Selection of excavation support schemes for super-large excavation group engineering

ZHAO Tong (Tianjin Innovative Finance Investment Co.,Ltd.,Tianjin 300450,China)  
Based on the properties of the super-large excavation group engineering of the first phase project of Yujiapu Financial District in Tianjian Binhai new area and comprehensively considering the development speed,construction period,cost,construction site layout and some other factors,the deep analysis and selection of excavation support scheme such as individual implementation and combining implementation of super-large excavation group engineering are discussed.A support scheme and construction process with balance among all aspects such as construction period,cost and construction site layout and so on is selected.It can be a good reference for the other similar super-large excavation group projects in soft soil area.
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