浅析岩石强度准则与断裂韧度的关系  

The Relationship of Rock Strength Criteria and Fracture Toughness

作　　者：陈星[1] 

机构地区：[1]三峡库区地质灾害教育部重点实验室

出　　处：《灾害与防治工程》2009年第2期40-44,共5页Disaster and Control Engineering

摘　　要：通常人们很少将岩土塑性力学和断裂力学联系在一起解决问题。然而,岩石的破坏和断裂是紧密相联的,岩石强度准则的材料参数和断裂理论的断裂韧度存在特定的方程关系。本文作出了推导,并以岩石的压剪试验为例,说明该推导的合理性。Geotechnical plastic mechanics and fracture mechanics are rarely used to solve problems in the same time. But the damage and fracture of rock is closely related to each other. And the relationship between strength criterion parameters of rock and fracture toughness of fracture theory is particular. The relationship equation is deduced, and then proved by the compression and shearing experiment on rock.

关 键 词：MOHR-COULOMB DRUCKER-PRAGER HOEK-BROWN 断裂韧度 

分 类 号：TU452[建筑科学—岩土工程] TG407[建筑科学—土工工程]