岩土工程学报2012，Vol.34Issue(12)：2345-2349,5.
基于大比例静力模型试验的高强度桩复合地基加筋垫层分析
Analysis of reinforced cushions in high-strength concrete pile composite foundation based on large-scale static model tests
Phu-doanh Bui 1罗强 1张良 1陈虎 1黄晶1
作者信息
- 1. 西南交通大学土木工程学院,四川成都610031
- 折叠
摘要
Abstract
To study the mechanism of reinforced cushions and the method for calculating bar tensions, four groups of large-scale static model tests are carried out by means of a self-designed equipment system to control the differential settlement between piles and soil. The bar tensions in the reinforced cushions under different loading levels are tested. The variation rules of magnitude and distribution of tensions with the increasing loadings are analyzed. The test results show that the bare tension gradually increases with the increase of settlement differences between pile top and soil between piles, and that the maximum one occurs at pile top. With the coverage expanding of the pile cap, the bar tension in the soil between slowly decreases, and that at the pile top sharply changes, following a rule of increasing at the beginning and decreasing at the end of the settlement process. The failure mode of reinforced cushions is represented by the fracture of bar strip along the pile cap.关键词
高强度桩复合地基/大比例静力模型/加筋垫层/筋带拉力Key words
high-strength concrete pile composite foundation/large-scale static model test/reinforced cushion/bar tension分类
交通工程引用本文复制引用
Phu-doanh Bui,罗强,张良,陈虎,黄晶..基于大比例静力模型试验的高强度桩复合地基加筋垫层分析[J].岩土工程学报,2012,34(12):2345-2349,5.
