柔性桩复合地基有效桩长的改进算法  

Improved algorithm for effective length of deformable pile in compound foundation

作　　者：杨鹏志[1] 周亦涛[1] 孙文君[1] 张丽军[1] 李义唐 

机构地区：[1]河北工程技术高等专科学校,河北沧州061001 [2]济南军区建筑设计院,山东济南250002

出　　处：《兰州理工大学学报》2014年第4期120-123,共4页Journal of Lanzhou University of Technology

摘　　要：合理利用Cooke剪切变形传递模型,基于桩土的变形协调,对路堤荷载和刚性基础下柔性桩复合地基的有效桩长理论计算公式进行改进.得到的有效桩长理论值与试验值非常吻合,且计算公式简单易记,对以后的路堤荷载下或刚性基础下柔性桩复合地基的设计有一定的参考价值.By means of reasonable use of Cooke＇s transfer model of shearing deformation, the theoretical computation formula of effective length of deformable pile in compound foundation under embankment and rigid foundation is improved base on pile-soil displacement coordination. The theoretical value of effective length is excellently consistent with its observed one during the test. The improved formula is simple and easy to be memorized, and has certain reference value in the future for designing deformable pile in compound foundation under embankment load and rigid foundation.

关 键 词：柔性桩复合地基 柔性桩 有效桩长 桩侧摩阻力 

分 类 号：TU470.3[建筑科学—结构工程] TU473.1[建筑科学—土工工程]