刚性桩复合地基研究进展与若干问题探讨  

Research progress and some discussion on rigid pile composite-foundation

作　　者：刘蕊[1] 杨德健[1] 罗浩[2] 国晔 

机构地区：[1]天津城市建设学院土木工程系,天津300384 [2]天津城市建设学院市政与环境工程系,天津300384 [3]天津市南开区绿化工程管理所,天津300193

出　　处：《天津城市建设学院学报》2005年第2期90-94,共5页Journal of Tianjin Institute of Urban Construction

摘　　要：介绍了刚性桩复合地基的研究现状,说明了该种复合地基的承载机理,给出了不同垫层厚度、垫层模量、不同桩长、桩间距、桩间土模量及桩端土模量对桩土应力比和沉降影响的变化规律,并指出了一些参数的取值问题及其它有待进一步研究的问题.Some research circumstances about rigid pile composite-foundation are introduced, and the bearing mechanism of the composite-foundation is pointed out.The varying regularity of the stress ratio and the settlement under all sorts of influence factors are studied.The influence factors include the cushion thickness,cushion modulus,pile length,pile spacing,and modulus of soil between piles.The problem which design parameters should be selected within rational range and problems which need further research are presented.

关 键 词：刚性桩复合地基 桩土应力比 荷载分担比 

分 类 号：TU472[建筑科学—结构工程]