关键词: 基桩, 渠坡, 模型试验, 水平荷载, 承载机制

Abstract:

In the construction of Middle Route of the South-to-North Water Transfer canal project, bearing structure of traffic bridge and connection bridge are mainly on the two side of canal slope. During the operation load expecially horizontal load will be transfered to the pile on the canal slope by the role of pier and cap, which can produce separation of pile and soil and cause uneven settlement in some deep range, on one hand can fracture the combine of foundation and layer structure of canal slope; and on the other hand affect the anti-seepage effect of canal slope. In order to take effective control measures, the deformation mechanism of pile on canal slope should be masterd. In this paper physical model test which is a link of research is designed to study the horizontal bearing mechanism of pile on canal slope; and the result shows that the anti-deformation performance of pile on canal slope is weaker than that of pile on horizontal subgrade; and horizontal bearing capacity of pile on canal slope is lower than that of pile on horizontal subgrade.

Key words: pile, canal slope, model test, horizontal load, bearing mechanism