岩石破坏全过程中的能量变化分析  

Analysis on Energy Transformation for Rock in the Whole Process of Deformation and Fracture

作　　者：赵忠虎[1] 鲁睿[2] 张国庆[3] 

机构地区：[1]四川大学水利水电学院,四川成都市610065 [2]北京市建筑工程研究院,北京100039 [3]郑州铁路局科研所,河南郑州450052

出　　处：《矿业研究与开发》2006年第5期8-11,共4页Mining Research and Development

基　　金：国家自然科学基金项目(50579042)

摘　　要：分析了用能量的方法研究岩石破坏问题的合理性,指出能量是岩石破坏的原动力,从能量的角度进行研究,就有可能发现岩石破坏的机理。进而详细分析了岩石变形破坏过程中,各种耗散能和释放能的种类、大小、以及对岩石破坏所起的不同作用,并分别从宏观和微观的角度研究了在不同的变形阶段中,岩石能量耗散与释放问题。作者认为能量耗散导致岩石强度的降低,而能量释放造成岩石的灾变破坏,从能量耗散与释放的观点研究岩石的破坏,可以避免分析复杂的变形过程,有利于简化问题,找到岩石破坏的真正原因,为实际工程提供参考。The authors analyze the rationality to study the problem of rocks destruction with energy methods, and indicate that energy is the basic power to cause rock failure. Therefore, from the point of energy, the failure mechanism of rocks may be discovered. After expounding the relationship about the energy dissipation and energy release, authors anatomize the types, magnitude and functions of the diversified dissipated energy and released energy in the process of deformation and fracture, and study the problem of energy dissipation and energy release in the each deformation phase from the point of macroscopic view and microscopic view. In this paper, it is considered that energy dissipation could lead to the strength reduction and energy release could eanse the catastrophic failure to rocks. Also, from the viewpoint of energy dissipation and energy release to study the failure of rock can avoid analyzing the complexity deformation proceas of rock, so that is helpful to simplify the problem about studying rock deformation and failure. Consequently, it could found the true reason of rocks failure and offer the reference to the engineering practice.

关 键 词：岩石 变形 破坏 能量耗散 能量释放 

分 类 号：TU452[建筑科学—岩土工程] O346.5[建筑科学—土工工程]