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Analysis on Environmental Impact of Deep Excavation in Shenzhen, China
A 30-m-deep foundation pit is excavated into 10-m-thick weathered granite strata in Shenzhen, China. The upper ground over weathered granite is a 20-m strata composed of loose sandy soil and clayey soil with high water content. To evaluate the impact on the surroundings caused by the excavation of the pit, a numerical simulation is performed by finite element method (FEM). Taking account of the interaction of excavation process, retaining structures and soil, simulation is conducted for the process of progressive excavation, support system assembling, and disassembling. Simulation results agree well with measured values and meet the requirements of construction criterion. The FEM model offers an available analysis method for the deformation prediction and design of similar ultra-deep excavation in Shenzhen.
Analysis on Environmental Impact of Deep Excavation in Shenzhen, China
A 30-m-deep foundation pit is excavated into 10-m-thick weathered granite strata in Shenzhen, China. The upper ground over weathered granite is a 20-m strata composed of loose sandy soil and clayey soil with high water content. To evaluate the impact on the surroundings caused by the excavation of the pit, a numerical simulation is performed by finite element method (FEM). Taking account of the interaction of excavation process, retaining structures and soil, simulation is conducted for the process of progressive excavation, support system assembling, and disassembling. Simulation results agree well with measured values and meet the requirements of construction criterion. The FEM model offers an available analysis method for the deformation prediction and design of similar ultra-deep excavation in Shenzhen.
Analysis on Environmental Impact of Deep Excavation in Shenzhen, China
Li, Hui (author) / Shen, Shui-Long (author) / Hou, Dong-Wei (author) / Wu, Shuang-Wu (author)
Geo-Shanghai 2014 ; 2014 ; Shanghai, China
Tunneling and Underground Construction ; 283-292
2014-05-05
Conference paper
Electronic Resource
English
Analysis on Environmental Impact of Deep Excavation in Shenzhen, China
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