软土地基沉降蠕变-固结有限元分析及应用  

Creep-consolidation finite element analysis of soft ground settlement and its engineering application

作　　者：于芳[1] 赵维炳[2] 李荣强 

机构地区：[1]河海大学土木工程学院,江苏南京210098 [2]南京水利科学研究院岩土所,江苏南京210024 [3]深圳市建设局,广东深圳518026

出　　处：《河海大学学报（自然科学版）》2006年第2期180-184,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金资助项目(50279021)

摘　　要：对软土蠕变-固结特性、计算模型、模型数值求解法进行研究,采用改进的Merchant模型和参数确定方法,编制非线性黏-弹性固结模型有限元计算程序.利用该程序对深港西部通道一线口岸软土地基沉降计算进行蠕变-固结有限元分析.计算结果与实际观测资料比较吻合.The characteristics of creep-consolidation in soft ground, as well as its computational model and numerical method were syste,natically studied. By use of the improved Merchant model and method for parameter calculation, finite element program for nonlinear elastic-cohesive consolidation model was complied and applied to soft ground settlement calculation and analysis for Shenzhen-Hongkong western artery road. The calculated result is found to be close to the measured data.

关 键 词：蠕变 有限元分析 地基沉降 本构关系 改进的Merchant模型 

分 类 号：TU447[建筑科学—岩土工程]