深层掏土纠偏法在桩基上多层建筑中的应用研究  

Study on application of deviation rectification of building with pile foundation

作　　者：朱方敏[1] 茜平一[2] 解家毕[3] 徐晗[4] 

机构地区：[1]武汉大学土木建筑工程学院 [2]广东水利电力职业技术学院,广州510635 [3]中国水利水电科学研究院,北京100038 [4]长江科学院土工研究所,武汉430010

出　　处：《岩土力学》2006年第9期1617-1621,1627,共6页Rock and Soil Mechanics

摘　　要：以某栋房屋的倾斜和纠偏为例,采用多高层建筑上部结构-桩基础-地基共同作用分析方法,探讨了深厚软弱地基上大面积地面堆载作用下桩基础建筑物的倾斜、变形形态及桩侧摩阻力的分布情况;了解了桩基础的变形形态及桩端土沉降的成因,进而对掏土纠偏法在桩基础纠偏中的适用性进行研究,为进一步的工程措施提供有效的依据。The deviation and the deviation rectification of a building with pile foundation are studied. The interaction analysis model of superstructure, pile foundation and ground is adopted. The deviation and displacement of building and the distribution of friction around piles are discussed when over loading is put on the ground with deep and thick flabby soil layer. The cause of deviation and subsidence of building is researched; and the applicability of excavating deviation rectification applied to pile foundation is studied. Based on these studies, the effective suggestion is offered for the further engineering measures.

关 键 词：掏土纠偏法 桩基础 有限元分析 共同作用分析 

分 类 号：TU431[建筑科学—岩土工程]