非均匀土中考虑桩端土体硬化效应的单桩解析算法  

AN ANALYTICAL SOLUTION FOR SINGLE PILE IN NON-HOMOGENEOUS SOIL CONSIDERING SOIL HARDENING BEHAVIOR OF PILE TIP

作　　者：杨桦[1] 杨敏[1] 周洪波[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《工业建筑》2005年第3期46-48,55,共4页Industrial Construction

摘　　要：桩侧和桩端采用不同的荷载传递函数 ,并将桩侧土体沿深度变化的剪切模量和强度进行线性拟合 ,在此基础上提出了一种非均匀土中单桩沉降的解析算法 ,推导了一系列单桩沉降解析表达式 ,计算结果可直接用于单桩分析 ,同时讨论了参数的取值问题 ,给出了简单的参数取值方法 ,计算结果与实测结果基本一致 ,证明了此方法的可行性。Using different load-transfer functions for pile shaft and pile tip, the lateral soil shear modulus and strength are linearly fitted along the depth, based on which a set of analytical equations for axially loaded single pile in non-homogenous soil is set up. The solution can be used to analyze the load-settlement behavior of single pile. A simple method to determine the calculation parameter is proposed. Comparison between the results obtained from the proposed method and the load test showed the effectiveness of this method.

关 键 词：桩端 土体 单桩沉降 单桩分析 荷载传递函数 实测结果 桩侧土 强度 取值 硬化 

分 类 号：TU473.1[建筑科学—结构工程]