摘要
在砂槽模型试验、离心模型试验及有限元计算分析的基础上,研究了高桩码头桩基对岸坡侧向变形的遮帘效应,桩基在岸坡侧向变形作用下的应力和位移特征,以及桩土相互作用机理。
In the engineering practice, piles can be classified into active piles and passive piles according to the interaction between pile and soil.The active piles transmit load actively onto the surrounding soil,and the passive piles bear passively the action of deformation and displacement of soil.In the bank slope under the pier, some deformation and displacement are unavoidably induced due to dredging on its toe and backfilling on its top, which will exert an undesirable effect on the pile foundation of the pier. This is a typical problem of the interaction between the passive piles and soil, and has been scarcely studied at home and abroad.In this paper, model tests conducted by the authors to study this problem are briefly described, and some preliminary results are presented and compared with those obtained from the centrifuge model tests and numerical analyses.
