巨型构筑物地基中软弱夹层物理力学参数的反演分析  

Inversion on Physic-mechanical Parameters for Weak Sandwich of Giant Building Foundation

作　　者：张怀文[1] 

机构地区：[1]中航勘察设计研究院,北京100086

出　　处：《岩土工程技术》1998年第2期29-32,共4页Geotechnical Engineering Technique

摘　　要：以大坝为参照物，对巨型建（构）筑物地基中软弱夹层的物理力学参数E、μ、c、进行反演分析，通过建立两个目标函数，合理模拟大坝及基岩软弱夹层的弹－塑性蓄水加载过程，基于罚函数、复合形法等优化手段，对在工程中能否利用反分析法得到合理的E、μ、c。The physical and mechanical parameters E, μ,c, for weak sandwich of giant building foundation are inverted based on a great dam. The elastic-plastic loading process to store water for weak sandwich between a dam and its bedrock is reasonably simulated through establishing objective function. It may be better proved that E,μ,c, obtained by inversion can or can't be used in a project according to optimization of penalty function and composite deformation method.

关 键 词：目标函数 巨型构筑物 软弱夹层 地基 物理力学 

分 类 号：TU431[建筑科学—岩土工程] TV223.1[建筑科学—土工工程]