同济大学学报（自然科学版）2024，Vol.52Issue(7)：1058-1067,10.DOI:10.11908/j.issn.0253-374x.22352
浅层就地固化桩土刚性复合地基沉降计算新方法
New Calculation Method of Shallow In-Situ Solidification Technology Combined with Pile-Soil Rigid Composite Foundation
摘要
Abstract
Considering the shortcomings of settlement calculation research on shallow in-situ solidification combined with pile-soil rigid composite foundation,and the limitation of settlement calculation method in current specifications under similar working conditions,this paper analyzes the settlement mechanism of shallow in-situ solidification combined with pile-soil rigid composite foundation,studies the sharing proportion of pile end stress under the soil arching effect,analyzes the settlement influence of the additional stress in the negative friction area above the equal settlement surface,and proposes a novel settlement calculation method for the shallow in-situ solidification combined with pile-soil rigid composite foundation.The numerical simulation and engineering practice,indicate that the shallow in-situ solidified soil technology can strengthen the soil arching effect,enhance the pile foundation transfer effect,and effectively reduce the overall settlement of the composite foundation.The settlement calculation method proposed in this paper is accurate and reliable.关键词
就地固化/桩土复合地基/沉降计算/土拱效应/桩身等沉面Key words
in-situ solidification/pile-soil composite foundation/settlement calculation/soil arching effect/equal-settlement level of piles分类
交通工程引用本文复制引用
袁胜强,潘春辉,栗关裔..浅层就地固化桩土刚性复合地基沉降计算新方法[J].同济大学学报（自然科学版）,2024,52(7):1058-1067,10.基金项目
上海市交通委科研项目,课题编号JT2018-KY-001 （）
