摘要
在充分考虑岩土介质的各向异性和流变特性基础上 ,建立了层状地基横观各向同性粘弹性位移反分析模型 ;结合上海典型深基坑工程 ,利用遗传算法 ,进行深基坑横观各向同性粘弹性动态施工反演分析 ,利用反演得到的每层岩土介质的弹性模量、粘性系数 ,预测相继施工阶段的结构和土体变形、内力 ,从而为工程的信息化、施工反馈设计提供了新的技术手段 ,同时促进了位移反分析的发展。
In order to reasonably simulate the anisotropy and creep of rock and soil, the models of transversely isotropic visco elasticity in back analysis with staged construction are established for layered rock and soil. In the typical deep excavation of Shanghai, this model is adopted with the genetic algorithm. The parameters back calculated such as elastic modulus and creep coefficients are used to predict deformation and internal force of structure in the next stages, so this provides a new methods for feedback design and informationalized construction and is helpful to the development of back analysis.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2002年第1期89-92,共4页
Chinese Journal of Geotechnical Engineering
关键词
动态施工
位移反分析
深基坑
粘弹性
遗传算法
staged construction
back analysis
deep excavation
transversely isotropic
visco elasticity
genetic algorithm
