岩石Ⅰ型断裂韧度测试技术和理论研究综述  

A review of test technique and theory of modeⅠ rock fracture toughness

作　　者：张盛[1] 李小军[1] 李大伟[1] 

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454003

出　　处：《河南理工大学学报（自然科学版）》2009年第1期33-38,共6页Journal of Henan Polytechnic University（Natural Science）

基　　金：河南省基础与前沿技术研究计划项目(072300440100);河南理工大学博士点基金资助项目(B2008-66648270)

摘　　要：岩石断裂韧度是用来表示岩石抵抗裂纹起裂和扩展能力的参数,它的测试比一般的强度测试存在更大的困难.介绍了Ⅰ型静态断裂韧度测试技术以及研究现状与进展,并提出一些关于测试方法的建议.指出圆盘试件在进行岩石断裂韧度的测试时,具有体积较小,加载方便,以及可以进一步实现Ⅰ型和Ⅱ型复合型加载的优点,不断发展和完善采用圆盘试件进行岩石断裂韧度的测试技术不仅是一项有意义而且十分迫切的工作.Rock fracture toughness is a parameter which can denote the resistance capacity of crack initiation and expansion, and there are more difficulties in its test than usual strength test. In this paper, the current and progress of test method in mode I of static fracture toughness was introduced, and some advices were given. Disc specimen has lots of advantages, such as smaller volume, easily loaded, and carried out mixed mode I and II fracture experiments, etc. It is a meaningful and very urgent work to develop and improve the test technology of rock fracture toughness with disc specimens.

关 键 词：岩石 断裂韧度 圆盘试件 测试方法 

分 类 号：TU458[建筑科学—岩土工程]