摘要
根据分形理论，系统地研究了在三轴压缩条件下三峡坝基岩石破裂系和破损物的分形结构。结果表明，在三轴压缩条件下，岩石脆性破裂的破裂系和岩石破损物的粒度分布均有很好的统计自相似性。在不同的围压和应变率下，岩石脆性破裂的分维值各不相同，体现了岩石脆性断裂机制的差异性。
In this paper, the fractal structures of fracture system and fractured substance of dam foundation rock of the Three Gorges Project under triaxial compression are systematically studied based on fractal theory. The results show that the fracture system and granulometric distribution of the fractured substance in brittle fracture of rock under triaxial compression are highly self similar in statistics. The fractal dimensions of brittle fracture of rock are related to test conditions such as confining pressure and strain rate, and this reflects the difference of brittle fractured mechanism of rock. Fractal dimension can be taken as a quantitative parameter to describe brittle fracture of rock and has an important significance in theory and engineering practice.
出处
《岩土力学》
EI
CAS
CSCD
1999年第3期24-28,共5页
Rock and Soil Mechanics
基金
中国博士后科学基金
关键词
三峡工程
三轴压缩
分维
岩石破裂
粒度分布
fractal , the Three Gogres Project , triaxial compression , fractal dimension , rock fracture , granulometric distribution
