摘要
扩底桩在当前工业建筑中得到了越来越广泛的应用。本文对扩底桩承载性能进行了分析研究。结果表明,扩底桩的桩端承载力(kPa)比同直径的直径桩的桩端承载力(kPa)要小;沉降量同扩底端直径有关,在相同荷载作用下,扩底端直径越大,沉降量也越大;随着D/d的增大,荷载传递到桩端的比例逐渐增大,但并不是成比例增大,其增大的比例越来越小;对扩底桩桩端阻力发展分三种状态分别进行了研究,从而对扩底桩桩端承载性状有了更加清晰的认识。
Today the belled pile is used more and more widely in industry buildings.This paper makes a study on vertical bearing behavior of belled piles.The result shows that the end resistance of belled piles（kPa） is less than the end resistance of shaft piles when diameters are the same;the settlement is based on the belled diameter,the settlement increases along with the belled diameter＇s increasing;and the proportion of load passing to the end increases when the numerical value of D/d increases,but it is nonlinear;focusing on the end resistance of belled piles,we would have a clear recognition about the vertical bearing behavior of belled piles according to the study of the end resistance of belled piles with three conditions.
出处
《建筑科学》
北大核心
2012年第1期74-77,共4页
Building Science
关键词
扩底桩
竖向承载性能
桩侧阻
桩端阻
belled pile
vertical bearing property
side resistance
end resistance
