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The Settlement Characteristic of Underground Urban Complex in Shanghai 被引量:4

The Settlement Characteristic of Underground Urban Complex in Shanghai
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摘要 The effects of excavation unloading, construction reloading and underground water on basal heave of excavation projects were presented and analyzed based on the measurement results of an underground urban complex which was located in Shanghai. The effects on water pressure and building settlements were analyzed as well. The numerical analyses by finite element method (FEM) were conducted. It showed that the soil under the excavation base continued to heave during the following certain construction stage. It also found that the bearing capacity of uplift piles which supported the buildings affected the structure quality significantly. The conclusions can be applied in future projects. The effects of excavation unloading, construction reloading and underground water on basal heave of excavation projects were presented and analyzed based on the measurement results of an underground urban complex which was located in Shanghai. The effects on water pressure and building settlements were analyzed as well. The numerical analyses by finite element method (FEM) were conducted. It showed that the soil under the excavation base continued to heave during the following certain construction stage. It also found that the bearing capacity of uplift piles which supported the buildings affected the structure quality significantly. The conclusions can be applied in future projects.
出处 《Journal of Shanghai Jiaotong university(Science)》 EI 2009年第3期365-370,共6页 上海交通大学学报(英文版)
基金 the National Natural Science Foundation of China (No. 50679041)
关键词 underground urban complex excavation settlement characteristic basal heave 地下城市 沉降特征 上海 复合 开挖卸荷 开挖工程 有限元法 数值分析
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