循环荷载下斜桩基础受力特性研究

Study on the Mechanical Characteristics of Inclined pile Foundation under Cyclic Loads

针对遭受风、波流等水平循环荷载作用的斜桩基础问题,进行水平循环荷载下斜桩群桩受力特性模型试验。试验结果表明:桩-土水平割线模量随循环次数的增加而增大,随循环位移幅值的增加而减小,斜桩桩-土水平割线模量大于竖直桩,随斜度的增加而增大。

In order to solve the problem of inclined pile foundation subjected to horizontal cyclic loads such as wind,wave and current,model tests on mechanical characteristics of inclined pile groups under horizontal cyclic load are carried out.The test results show that the horizontal secant modulus of pile-soil increases with the increase of cycle times and decreases with the increase of cyclic displacement amplitude.The horizontal secant modulus of inclined pile is larger than that of vertical pile,and increases with the increase of slope.