盐岩的压缩试验研究与损伤模型模拟  

EXPERIMENTAL STUDY ON SALT ROCK UNDER COMPRESSION AND DAMAGE MODEL SIMULATION

作　　者：吴文[1,2] 杨春和[1] 

机构地区：[1]中国科学院岩土力学重点实验室 [2]Institute for Waste Disposal and Geomechanics,Technical University of Clausthal,Clausthal-Zellerfeld 38678,Germany

出　　处：《岩石力学与工程学报》2006年第z2期3709-3713,共5页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金项目(50274065);中国科学院武汉岩土力学研究所领域前沿基础性研究基金资助项目(Q110205)

摘　　要：基于C.S.Desai提出的扰动态概念,对围压0～25MPa范围内盐岩在三轴压缩下的应力-应变关系进行初步模拟分析。在此模拟过程中,材料的完整态采用ZWT模型进行描述,完全扰动态则采用Mohr-Coulomb摩擦力的表述形式。由此研究模型中相关系数与围压的关系。研究结果表明:此模型能够较好地应用于盐岩三轴压缩过程的模拟分析。盐岩的三轴损伤模型的计算结果与试验结果吻合较好。On the disturbed state concept proposed by C.S.Desai,a preliminary model analysis is conducted to investigate the deformation processes of salt rock under triaxial compression with confining pressures ranging from 0 MPa to 25 MPa.In this modelt,he ZWT model proposed by Tang Z P is applied to describe the behavior of material at the intact state,while a Mohr-Coulomb equation is used to describe material at the failure state.Corresponding relationships of parameters in the model are also presented.The results show that the simulation results agree well with the experimental results.

关 键 词：岩石力学 盐岩 压缩试验 损伤模型 扰动态概念 

分 类 号：TU45[建筑科学—岩土工程]