In this article three dimension FEM is adopted in the stress analysis of bottom diversion outlet and notch segment of a RCC gravity dam when flowing design flood.
本文采用三维有限元法，对碾压混凝土坝底孔缺口坝段在过流情况下，顶部未到设计龄期的碾压混凝土和大型导流底孔周边的应力分布进行了分析。
Research indicates that under full load operation of the reservoir, large local tensile stress will be produced at the dam heel and the outlet and inlet of the power penstock.
研究表明，当水库满载运行时，坝踵处产生较大局部拉应力；管道进出口也出现较大局部拉应力。
Surface outlet is the main discharge channel of high arch dam. Usually many surface outlets of large size are constructed on a high arch dam; their stress conditions are quite complicated.
表孔一般是高拱坝泄洪的主要通道，具有孔口数量多、结构尺寸大、受力状态复杂的特点。
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