论岩石、混凝土离散-接触-断裂分析
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摘要
阐述岩石、混凝土材料与结构的力学特征;综述当今岩石、混凝土离散–接触–断裂分析模型与数值方法;同时,对这一领域的前沿科学技术问题提出作者的见解;应用离散–接触–断裂分析模型,研究高坝与地基安全稳定问题,并给出若干工程实例;最后,展望岩石、混凝土力学未来的前景,指出构建连续–非连续介质统一数值模型,以研究细观损伤到宏观破坏失稳全过程机制是其主要发展方向。
Mechanical characteristics of rock,concrete materials and structures are described.State-of-the-art numerical modeling and methods for analysis of rock and concrete structures are summarized.The scientific and technological frontier issues are reviewed;and case studies of employing discrete-contact-fracture analysis models for safety evaluation of high dams and foundations are accomplished.Finally,it is pointed out that the prospect of development for rock and concrete is to construct a unified numerical model of combining continua and discrete media.Thus,analysis of rock and concrete starting from damage initiation in meso-scale(even micro-scale) to complete process of rupture in macro-scale can be performed.
Mechanical characteristics of rock,concrete materials and structures are described.State-of-the-art numerical modeling and methods for analysis of rock and concrete structures are summarized.The scientific and technological frontier issues are reviewed;and case studies of employing discrete-contact-fracture analysis models for safety evaluation of high dams and foundations are accomplished.Finally,it is pointed out that the prospect of development for rock and concrete is to construct a unified numerical model of combining continua and discrete media.Thus,analysis of rock and concrete starting from damage initiation in meso-scale(even micro-scale) to complete process of rupture in macro-scale can be performed.
引文
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