长短桩复合地基应力及沉降规律数值分析  

Numerical analysis of stress and deformation law of long-short piles of composite foundation

作　　者：王瑞芳[1,2] 皮菊华[3] 

机构地区：[1]武汉科技大学土木系,湖北武汉430071 [2]武汉大学土木建筑工程学院,湖北武汉430072 [3]湖北省鄂州大学建工系,湖北鄂州430060

出　　处：《四川建筑科学研究》2011年第2期133-136,共4页Sichuan Building Science

摘　　要：通过大型有限元ABAQUS软件,进行三维弹性有限元的数值分析。以9根长桩、4根短桩复合地基为例,研究了在竖向荷载下长短桩复合地基中承台—垫层—桩—土的共同作用特性,对长短桩复合地基的桩体荷载传递规律、桩土应力比、沉降及其影响因素进行了系统的分析,得出了相应的结论。Presents nine long piles and four short piles composite foundation by using of ABAQUS FEM program,characteristics of co-action among pile cap-padding layer-pile-earth in compostion foundation of pile cluster under vertical loading are studied with three dimensional finite element method;and load transmission characteristics and pile-soil stress ratio,settlement and their influence factors in composite foundation are systematically analysed,corresponding conclusions are drawn.

关 键 词：长短桩复合地基 桩土应力比 沉降 ABAQUS有限元 

分 类 号：TU473[建筑科学—结构工程]