冻结岩石静动态力学性质研究进展

Developments on Static and Dynamic Properties of Frozen Rock

高寒高海拔地区的各类重要基础设施在社会发展中扮演着重要角色,也是连通内地与偏远地区经济发展的生命线与补给线,未来战争中,其安全防护需考虑不同环境下的冻结岩石防护介质抗爆炸毁伤作用,研究寒区冻结岩石工程对于高原高海拔地区工程建设和重要设施防护具有重大意义。梳理了近几十年来国内外在冻结岩石静动态力学特性方面所取得的研究成果,主要从强度特性和变形特性两个方面进行了总结,重点分析了静动态力学性质受孔隙冰的影响机制,并提出对冻结岩石在耦合效应下破坏理论的讨论与展望,以期为寒区工程建设及其防护提供科学支撑。

The infrastructures in the cold and high-altitude regions play an important role in the social development,which are also the life and supply lines that connecting the economic development of the inland and remote areas.In the future potential wars,the safe protection of the frozen rock protection media under different environments should be considered.The study of the frozen rock engineering in cold regions is of the great significance to the engineering construction and the protection of important facilities in high altitude areas on the plateau.In this paper,the research results on the static and dynamic mechanical properties of the frozen rock at home and abroad in recent decades are summarized,mainly from the aspects of strength characteristics and deformation characteristics.The mechanism of the influence of the static and dynamic mechanical properties on the porosity ice is emphatically analyzed,and the discussion and prospect of the failure theory of frozen rock under the coupling effect are put forward,so as to provide scientific support for the engineering construction and protection in cold regions.