数值分析方法在混凝土坝安全评估中的应用综述

当前我国是世界水电建设的中心，面临的许多混凝土高坝安全评估问题均为世界级难题，数值分析是当前混凝土高坝安全评估的主要手段。本文从混凝土材料的本构关系、数值分析方法的进展、有限元方法在混凝土坝安全评估中的应用3个层次对研究现状进行了简要的总结和评述，讨论了混凝土断裂力学本构模型和损伤力学本构模型的研究进展，比较了连续数值方法和非连续数值方法在混凝土坝安全评估中的优劣势，最后对混凝土坝安全评估的研究方向进行了展望。

A review of numerical analysis methods used in safety assessment on concrete dams

Today, China has become the centre of hydropower project construction in the world. The Chinese dam engineers are facing more and more safety evaluation problems in high dam construct ion, many of them are in world-class. Numerical analysis is the primary approach for safety assessment of concrete dams. The paper presents a brief review on the current research status from the perspect ives of the constitutive relations of concrete, numerical analysis methods and the application of f inite element method in safety assessment of concrete dams. Discussion on progress of studies on concrete fracture mechanics models and concrete damage mechanics models is also given. Continuous numerical methods applied in safety assessment of concrete dams are compared with non-continuous numerical methods. Finally, the direction of future research on safety assessment of concrete dams is prospected.