工程地质学报Issue(6)：1052-1057,6.DOI:10.13544/j.cnki.jeg.2014.06.006
考虑初始结构性影响的吹填软土应力应变关系
STRESS-STRAIN RELATIONSHIP OF SOFT DREDGER FILL WITH ORIGINAL STRUCTURE
摘要
Abstract
Normal sedimentary soil generally has the characteristics of original structures.Up to now,the most soil constitutive models are developed and built up based on the non-structure soils.If they are directly used to describe stress-strain relations of structure soils,a great difference can be produced between the measured value and the calculated value.This paper is based on the modified Cambridge model.The stress-strain relationship is established considering the influence of original structure property of the structural soft dredger fill.Compared with the modified Cambridge model,the new model only increases the number of parameters.They can be obtained through the conventional triaxial test.The types of parameters are unchanged.The triaxial compression test are conducted of the structural dredger fill which are treated by vacuum preloading method in Tianjin Binhai new area.Compared with the test value and the simulation value,the new model can consider the effect of original structural impact.关键词
吹填软土/初始结构性/修正剑桥模型/结构屈服应力/应力应变关系Key words
Soft dredger fill/Original structure/Modified Cambridge model/Structure yield stress/Stress-strain relationship分类
天文与地球科学引用本文复制引用
杨爱武,张兆杰,孔令伟..考虑初始结构性影响的吹填软土应力应变关系[J].工程地质学报,2014,(6):1052-1057,6.基金项目
国家自然科学基金项目（51179186，41372291）和天津市科技发展计划项目（06YFSZSF04000）资助． （）
