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单桩与带承台单桩荷载传递特性的比较试验
引用本文:楼晓明,房卫祥,费培芸,叶文勇. 单桩与带承台单桩荷载传递特性的比较试验[J]. 岩土力学, 2005, 26(9): 1399-1402
作者姓名:楼晓明  房卫祥  费培芸  叶文勇
作者单位:1. 同济大学 地下建筑与工程系,上海 200092;2. 上海第一市政工程公司,上海 200083
摘    要:对单桩和带承台单桩进行静载试验比较,桩身与承台下传感器得到了如下荷载传递特性:桩顶荷载分担比随总荷载增加而减小,承台使上部桩身轴力分布平缓,桩侧摩阻力受到削弱,摩阻力传递函数出现软化现象,但同时下部摩阻力发挥得到增强,而桩顶刚度变化不大。这些成果对于桩与承台共同作用特性研究具有重要参考价值。

关 键 词:单桩  承台  静载试验  荷载传递特性  
文章编号:1000-7598-(2005)09-1399-04
收稿时间:2004-08-24
修稿时间:2004-08-242004-12-17

Comparative testing on characteristic of load transfer between single pile and single pile with cap
LOU Xiao-ming,FANG Wei-xiang,FEI Pei-yun,YE Wen-yong. Comparative testing on characteristic of load transfer between single pile and single pile with cap[J]. Rock and Soil Mechanics, 2005, 26(9): 1399-1402
Authors:LOU Xiao-ming  FANG Wei-xiang  FEI Pei-yun  YE Wen-yong
Affiliation:1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Shanghai No.1 Municipal engineering company, Shanghai 200083, China
Abstract:Load transfer tests of single pile and single pile with cap are conducted. The main characteristics of load transfer are as follows:the load on pile top is decreased while the total load increased. The cap on pile top makes distribution of axial force gently, frictional resistance decreased, and transfer function softened at upper pile shaft; meanwhile, frictional resistance at the rest increased; rigidity of pile top is changed a little.
Keywords:single pile  cap  static load test  characteristic of load transfer
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