高温岩石细观裂纹演化机制研究进展  

Research progress on the microcrack evolution mechanism of high-temperature rock

作　　者：高经纬 蒋迪 范立峰 GAO Jingwei;JIANG Di;FAN Lifeng(Advanced Nuclear Energy Technology Research Institute,China Nuclear Power Engineering Co.,Ltd.,100840 Beijing,China;College of Architecture and Civil Engineering,Beijing University of Technology,100124 Beijing,China)

机构地区：[1]中国核电工程有限公司先进核能技术研究院,北京100840 [2]北京工业大学建筑工程学院,北京100124

出　　处：《应用力学学报》2025年第2期264-285,共22页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目(No.12172019);北京市杰出青年基金资助项目(No.JQ20039)。

摘　　要：为了深入理解高温岩石细观裂纹演化机制,通过分析,从缓慢加热冷却作用效应、热冲击作用效应、应力作用效应和高温-应力共同作用效应4个角度系统地总结了岩石细观裂纹演化机制研究进展,阐述了高温岩石细观裂纹演化规律,梳理了声发射监测技术、超声波技术、压汞技术、核磁共振技术、光学显微镜、扫描电子显微镜以及CT扫描系统等先进试验技术在细观裂纹演化机制研究中的应用。指出现有研究存在的局限性,缺乏多物理场-多相介质耦合作用下细观结构变化的研究,缺乏细观结构参数与宏观物理力学参数建立定量关系的研究,从多技术联合监测和建立宏细观定量关系两方面展望了高温岩石细观裂纹演化问题的研究趋势。The microcrack evolution mechanism of high-temperature rock has received widespread study.However,the systematic summary is still lacking.The research progress of the microcrack evolution mechanism of high-temperature rock is systematically summarized from four perspectives,including slow heating and cooling effect,thermal shock effect,stress effect,and the combined effects of high-temperature and stress.The evolution of microcracks in high-temperature rock is described in detail.The application of advanced experimental techniques into the study of microcrack evolution mechanism was introduced,including acoustic emission(AE),ultrasound wave,mercury intrusion technology,nuclear magnetic resonance(NMR)technology,optical microscope,scanning electron microscope(SEM)and computer tomography(CT)scanning technology.The limitations of existing research are pointed out,including the lack of research on microstructural changes under the coupling effects of multiple physical fields and multiphase media,and the lack of research on establishing quantitative relationships between microstructural parameters and macroscopic physical and mechanical parameters.The research trend of microcracking properties in high-temperature rocks is described from two aspects,including the multi technology joint monitoring and the establishment of macro-micro quantitative relationships.

关 键 词：岩石 高温 热冲击 高温-应力作用 细观裂纹 

分 类 号：TU45[建筑科学—岩土工程]