摘要
研究了岩体的构造层次与其力学行为之间的关系。从分析可以看出,岩体的强度与岩体的构造层次之间有紧密的关系。岩体的构造层次越小,在本层次上强度越高。因此岩体的最小工作层次与外力所能达到的水平之间有直接的联系。表现在破坏块体的尺寸上,最小的破坏尺寸与所能达到的强度有直接的关系。在此基础上得到了破坏块体的尺寸与应变率,塑性变形及应力状态之间的关系。
The relationship between the structure hierarchy of rock masses and their mechanical behavior is studied. It is shown from the study that the strength of the rock masses and their hierarchy are related closely. The less the scale of the rock masses is,the more their strength is. Therefore the stress level reached in them determines the least working hierarchy of the rock masses. As to the fractured fragment size, the least fragment size of the rock masses is directly related to the strength. On this basis the relationship among the fragment size , strain rate, plastic strain and stress state of the rock masses is obtained.
出处
《世界地震工程》
CSCD
2004年第2期35-38,共4页
World Earthquake Engineering
基金
国家自然科学基金重大项目(50490270-50490275)
国家自然科学基金项目(A50179038)
关键词
岩体构造
构造层次
力学性质
应力
强度
structural hierarchy
mechanical property
stress state
strength
