摘要
提出了土体本构模型的确定方法及其参数的获取途径。通过分析与推导，表明对于采用三元件模型等描述材料性态的线性粘弹性模型，可通过采用与时问序列相对应的综合弹性模量Ｅｔｉ代替线弹性模量，将其简化为弹性问题的分析，由此建立了基坑变形预测的计算模型。同时依据提出的计算模型所进行的分析，获得了支护方案的优化设计和坑周环境保护措施。
A method is proposed to define the constitutive model for soil and its parameters. Through the analysis and derivation, it is shown that the linear visco-elastic model, for example, the three-elements model, can be simplified as elastic model with substituting synthetic elastic module corresponding to time for linear elastic module. From this, the calculation model of deformation forecast for foundation pit is set up. According to the analysis with proposed model, the optimum design for retaining plan and measures for the environmental protection around foundation pit are obtained.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2001年第4期555-559,共5页
Chinese Journal of Rock Mechanics and Engineering
基金
湖南省科技攻关基金(97JFY20306)资助项目。
关键词
基坑
变形预测
环境保护
本构模型
弹性模量
Deformation
Elasticity
Environmental protection
Foundations
Model structures
Viscoelasticity
