岩石失稳破裂的能量原理分析  

Analysis of Energy Principles in Rock Destabilization and Fracture

作　　者：赵忠虎[1] 鲁睿[2] 张国庆[3] 

机构地区：[1]四川大学 [2]北京市建筑工程研究院 [3]郑州铁路局科研所

出　　处：《金属矿山》2006年第10期17-20,37,共5页Metal Mine

基　　金：国家自然科学基金资助项目(50579042)

摘　　要：岩石是一种含有初始微缺陷的天然工程材料,其内部结构和变形过程十分复杂,通过分析指出如果用能量的观点研究岩石的破坏问题,就有可能发现岩石破坏的物理机理。基于这一思路,认为岩石在变形初期阶段具有能量耗散的特点,用耗散结构理论研究这一过程;受力超过峰值点,岩石发生突然破坏,瞬间释放出大量的能量,这一过程可以用灾变理论进行研究。最后指出了岩石能量原理需要研究的主要内容。Rock is a kind of natural engineering material with genetic defects and very complex internal structure and deformation process. It is pointed out in the paper through analysis that if the rock failure is studied from the viewpoint of energy, its physical mechanism may be discovered. Following this train of thought, the authors consider that the initial de- formation period of rock is characterized by energy dissipation, which can be studied by dissipative structure theory. When the stress is over its peak value point, the rock will be suddenly destroyed and release a large amount of energy, a process that ean be analyzed using the catastrophe theory. Finally, the main contents in the research of rock energy principles are suggested.

关 键 词：岩石 能量耗散 能量释放 耗散结构 灾变理论 

分 类 号：TU452[建筑科学—岩土工程]