ZHANG Yi-ping, YU Ya-nan, ZHOU Hong-wei. Study on causes of post-construction settlement of DJM pile composite foundation at bridge approaches[J]. 2006, 27(7期 刊出日).
ZHANG Yi-ping, YU Ya-nan, ZHOU Hong-wei. Study on causes of post-construction settlement of DJM pile composite foundation at bridge approaches[J]. 2006, 27(7期 刊出日).DOI:
In order to study the causes of post-construction settlement of deep-jet-mixed(DJM) pile composite foundation at bridge approaches
the settlement is analyzed and back-analyzed by Biot’s consolidation FEM. The soil constitutive model is the Duncan-Chang nonlinear elastic model in finite element analysis; and Duncan-Chang nonlinear elastic model and Merchant viscoelastic model are used in finite element back-analysis. The computation results show that the traffic load and soil creep are the main causes induced the post-construction settlement of DJM pile composite foundation. The traffic load is the main cause at early period