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坝肩稳定是拱坝建设中的一个重要的问题,实践中已有因坝肩的山岩失稳而导致工程失事的例子。由于两岸山体多属非均质非弹性非连续的三维实体,目前采用数值分析法尚有不少困难之处,因此通过模型试验来审查拱坝坝肩的稳定性,早已为工程界所重视。本文主要介绍我们对湖南天福庙拱坝所进行的一次坝肩抗滑稳定整体结构模型试验的情况。该双曲拱坝的最大坝高为59.1米,坝顶轴线弧长为180米,最大中心角为100°,最小中
Dam abutment stability is an important issue in the construction of arch dam. In practice, there have been some examples of engineering failures caused by the instability of the rock mass at the abutment. Due to the non-homogeneous, non-elastic and non-continuous three-dimensional bodies of mountains on both sides of the Strait, there are still many difficulties in using numerical analysis at present. Therefore, it is long ago that the stability of arch dam abutments has been examined through model tests. This article mainly introduces the situation of a model test of anti-sliding stability of a dam abutment for the Tianfumiao arch dam in Hunan Province. The maximum dam height of the double-curvature arch dam is 59.1 meters, the arc length of the crest axis is 180 meters, the maximum center angle is 100 °, the minimum