细观破裂演化诱致岩体失稳机理及规律的研究

The unstable phenomena of rock engineering, such as landslide, rockbursts and earthquake, are usual natural geological disaster and mechanical failure process with many common patterns. In the research, the whole process of rock fracture has been studied from.mecro-fracture to macro-fracture by using renormalization group and fractal heories, combining the macro-fracture of rock mass and mecro-fracture of rock. Specially, the critical mechanical behavior of rock unstable failure has also been studied. The evolution of rock mecro-fracture was.simulated numerically in order to provide theoretical foundation for forecasting and controlling natural geological disasters.

通过建立耗散结构理论的岩石细观破裂演化方程，研究岩石细观破裂在外界荷载作用下从无序状态演化至有序状态全过程，探索细观破裂演变至岩体宏观失稳破裂与稳定破裂的内在机理和前兆规律。通过数值模拟岩石破裂过程及利用工业CT、声发射定位仪监测岩石细观过程以验证理论结果，从而为预测和控制岩爆、滑坡乃至地震等地质灾害提供一条新途径。.