摘要
采用自平衡试验方法,结合天水市经济开发区一号大桥工程,进行了3根钻孔灌注桩承载力现场试验(桩径1.2m,桩长分别为35,47,35m).在对测试数据进行整理和分析的基础上,对基桩的承载特性及桩侧阻的发挥特征进行研究,获取了必要的技术数据,验证了设计参数,可为该地区类似工程的基桩设计提供可靠参数.结果还表明:在桩基静载试验中,自平衡测试法是一种有效、方便的测试方法,测试取得很好的工程效果,可以在类似工程中推广使用.
According to the project of No.1 bridge in Tianshui economic clevelopment zone,the bearing capacity test for 3 bored piles（diameter is 1.2 m,length is 35 m,47 m and 35 m,respectively） is carried out by using self-balanced method.On the basis of collecting and analyzing the test data,the bearing behavior of foundation pile and pile side resistance features are studied to obtain the necessary technical data,verify the design parameter and provide reliable parameters for pile design of the similar project in this area.The result indicates that the self-balanced method is an effective and simplified testing method in pile foundation static test,and it has attained excellent engineering effect and can be used widely in the similar project.
出处
《兰州交通大学学报》
CAS
2012年第1期52-56,共5页
Journal of Lanzhou Jiaotong University
关键词
自平衡法
基桩
承载力
侧摩阻
self-balanced method
foundation pile
bearing capacity
frictional resistance
