岩土材料基本力学特性与屈服准则体系  

Basic Mechanics Characteristics and Yield Criterion System of Geomaterials

作　　者：郑颖人[1] 高红[2] 

机构地区：[1]中国人民解放军后勤工程学院土木工程系,重庆400041 [2]中国科学院岩土力学研究所岩土力学重点实验室,湖北武汉430071

出　　处：《建筑科学与工程学报》2007年第2期1-5,共5页Journal of Architecture and Civil Engineering

摘　　要：比较了岩土材料与金属材料特性及其力学性质差异,认为岩土材料属于多相体的摩擦型材料,存在内摩擦性质,并对岩土材料在弹性状态及极限状态下的摩擦特性进行了分析。详细介绍了高红-郑颖人岩土材料三剪能量屈服准则,给出了其在各种特殊情况下的具体形式,并与Mohr-Coulomb准则进行了比较,提出了三剪能量与三剪应力状态下的Drucker-Prager准则。最后总结了各国常用的应力与应变屈服准则及能量屈服准则,并对其进行了分析比较。After comparing the difference of material properties and the induced difference of mechanics characteristics between metals and geomaterials, it was concluded that geomaterials were frictional materials with multiphase and had frictional properties. The frictional characteristics of geomaterials in elastic state and limit state were analyzed respectively. The triple shear energy yield criterions of geomaterials of Gao Hong and Zheng Ying-ren were introduced in detail, and the formulations in some special conditions were presented and compared with the Mohr-Coulomb criterion, then the triple shear energy and the triple shear Drucker- Prager criterion were put forward. At last, the commonly used stress and strain yield criterions as well as energy yield criterion were summarized and compared in every country.

关 键 词：摩擦特性 三剪 能量 屈服准则 岩土材料 

分 类 号：TU411.7[建筑科学—岩土工程]