BEARING MECHANISM OF PRESTRESSED HIGH STRENGTH CONCRETE PIPE PILES IN DEEP SOFT SOIL UNDER VERTICAL LOAD
The bearing mechanisms of prestressed high strength concrete (PHC) pipe piles in deep soft soil under vertical load are discussed by non-linear finite element program. The pile-soil model is axisymmetric. The piles are modeled as a linearly elastic material while the soil in the inner-field region is modeled as elastoplastic continuum material that Mohr-Coulomb criteria is used to model the soil behavior. The soil in the far-field region is modeled as elastic material and assumed to have an infinite boundary. The classical isotropic coulomb friction model is used to model the interface friction contact between pile and soil through the element-based contact. Results show that a good agreement is achieved between the numerical analysis and the field data. The classical isotropic coulomb friction model can be used to model the interactivity of the pile and the soil. Limited parametric study is performed through the finite element model. The results will help to better understand the bearing mechanism of PHC pipe piles in deep soft soil.
PHC pipe pile contact interactivity super-long pile vertical bearing mechanism
Wan-Qing Zhou Jian Cai Yi-Xi Lin Liang-Ji Huang
China Three Gorges University, Yichang 443002, P.R. China South China Univ. of Tech., Guangzhou 510060, P.R. China Zhuhai Municipal Construction Engineering Quality Supervision & Test Station, Zhuhai 519015, P.R. Ch
国际会议
广州
英文
1022-1028
2009-11-28（万方平台首次上网日期，不代表论文的发表时间）