井筒式地下连续墙基础竖向承载特性试验研究

Test on vertical bearing behavior of shaft diaphragm wall foundation

摘要: 井筒式地下连续墙基础是一种较为新颖的深基础形式。为研究其竖向承载特性,在国内首次采用自平衡法对黄土地区某桥梁的井筒式地下连续墙基础进行了现场静载试验。通过对试验数据分析,得出了地下连续墙基础的竖向承载力、侧摩阻力及端阻力的发挥特性。试验和分析结果为工程设计提供了重要依据。

Abstract: The diaphragm wall foundation is a new kind of foundation.To study vertical bearing behavior of the foundation,a shaft diaphragm wall foundation of bridge in loess area was tested for bearing capacity by use of the self-balanced method.The method was used for the first time in China.By analyzing test data,the vertical bearing capacity,lateral friction and tip resistance of the diaphragm wall foundation were studied.The test data and results were very important to design.