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以Poulous弹性理论法为基础,假定桩、土之间位移协调,计入深基坑开挖过程中土体隆起对地下连续墙、中间支承桩上抬的影响,考虑逆作法施工过程中地下连续墙—中间支承桩—地下室楼板—上部结构共同作用。并对某大厦逆作过程的结构进行了计算,将理论计算结果与现场实测结果进行了比较分析,说明理论计算方法的可行性。
Based on the Poulous theory of elasticity, assuming that the displacement between piles and soil is coordinated, the effect of soil bulge on the uplifting of diaphragm wall and intermediate support piles during excavation of deep foundation pits is taken into account. Considering the underground continuous Wall - Intermediate supporting pile - Basement floor - Superstructure interaction. The structure of a building was calculated and the theoretical calculation results were compared with the field test results to show the feasibility of the theoretical calculation method.