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Progressive Failure Research on Foundation Surface of Concrete Gravity Dam

机译：混凝土重力坝基础面的逐步失败研究

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Concrete dam safety is one of the hot issues in dam study with the increasing of dam's scale and height. Sliding failure along foundation surface is a potential failure mode of concrete gravity dam, and this mode is relatively rare in practical engineering. Strength reduction method is used to analyze the progressive failure along foundation surface of concrete gravity dam, and the strength parameters of weak layer in the foundation surface are reduced to analyze the occurrence and development regularity of plastic zone. If the plastic zone of foundation surface is totally coalescent, the dam will slide along the foundation surface. To track this process, the failure path and the safety reserve coefficient would be determined. This result will provide certain scientific basis for anti-sliding stability analysis of concrete gravity dam.
机译：混凝土坝安全是大坝规模和高度越来越多的大坝研究的热点之一。沿基础表面滑动故障是混凝土重力坝的潜在故障模式，在实际工程中，这种模式相对罕见。强度缩减方法用于分析混凝土重力坝的基础表面沿渐进式衰竭，并且减少了基础表面弱层的强度参数，以分析塑料区的发生和发展规律性。如果基础表面的塑料区是完全束缚的，则坝将沿着基础表面滑动。要跟踪此过程，将确定故障路径和安全保留系数。该结果将为混凝土重力水坝的防滑稳定性分析提供一定的科学基础。

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