Civil and Environmental Engineering Commons^™

Impacts Of Pit Excavation On Foundation Piles In Deep Silty Soil By Centrifugal Model Tests, Guo-Hui Wang, Wen-Hua Chen, Qing-Ke Nie, Jun-Hong Chen, Hui-Hong Fan, Chuan Zhang

Rock and Soil Mechanics

The foundation pit excavation of a power plant located along the Yangtze River in Jiangsu province is selected to study the interaction mechanism between piles and soils during excavation of foundation pits in deep silty soft soil. Thus an indoor centrifugal model test with the similarity ratio of 1:50 is designed. The influence of foundation pit excavation on existing pile and surrounding soil in deep silty soft soil are analyzed from different aspects including the pile strain, pile displacement, pile top displacement, surface settlement and soil deformation influence range, pile bending moment and pore water pressure. Results from the centrifugal …