摘要
岩体具有复杂的内部结构层次.在不同的结构层次上岩体的变形与破坏的时间及结构尺度之间存在着紧密的联系,这种联系表现为在一定的结构级别上结构块的破坏时间与该级别上块体的尺度成正比.基于这种时间及空间尺度之间的联系,现就岩体不同结构层次上破坏的能量关系进行了研究.首次推导出在不同结构层次上破坏的等功密度原则和等能量流原则.Yu.Petrov等得到的等功率原则仅仅是本文得到的结果的特例.这些原则可以作为研究岩体在不同层次上变形与破坏的工具.
Rock mass has complex structural hierarchy, At different scale levels there exists close relation between temporal and structural scales of deformation and fracture of geo-blocks, Such a relation lies in that the fracture time is proportional to the size of blocks at this level. Based on this temporal-spatial relation the energy relations of fracture at different scale levels are studied in the present paper. The principle of equal density of work and principle of equal energy flow are derived by the authors of the present paper at the first time. The principle of equal power derived by Yu. Petrov et al is a particular case of the result of the present paper. These principles can serve as a tool for the study of deformation and fracture of rock mass at different levels.
出处
《北京建筑工程学院学报》
2007年第4期1-4,共4页
Journal of Beijing Institute of Civil Engineering and Architecture
基金
国家自然科学基金重大项目(50490275)
关键词
结构层次
破坏
等功密度原则
等能量流原则
structural hierarchy
fracture
principle of equal density of work
principle of equal energy flow
