群桩在水流冲刷影响下的承载性状研究

利用三维非线性有限元程序模拟分析群桩基础在水流冲刷条件下的承载性状。采用特殊土单元法考虑水流冲刷作用,避免了传统有限元程序计算中一些复杂、繁琐的工作。通过冲刷和不冲刷两种状态下桩基承载性状的对比,分析水流冲刷后群桩基础承载性状的变化情况,得出一些有益结论,同时也说明该方法能较好地模拟桩基中水流冲刷的作用,并针对实际工程的设计计算提出部分建议和意见。

A STUDY OF LOAD-BEARING OF PILE GROUPS DUE TO CURRENT SCOUR

In this paper,three-dimensional non-linear finite element program is used to analyze the character of load-bearing of pile group due to current scour.The special soil element method,which avoids some complex work in traditional methods,is supported in this paper to consider the action of current scour.According to the comparison between pile group working with current scour and without it,we can analyze the differences between the two status and make a conclusion that this method can simulate the action effectively and accurately.At last,the authors make some conclusions and put forward their options and advices to some engineering design.