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本文介绍了国内某拱坝基础未加处理时的整体抗滑稳定三维小块体拼砌的地质力学模型试验研究情况。其中包括模型的设计和制作、测点布置和加荷量测,试验成果及分析等。还分析了拱坝及两坝肩山体在漫坝超水头作用下的超载能力及其破坏机理,并指出了影响该工程安全的主要因素及薄弱部位。
This paper introduces the geomechanical model test research on the anti-sliding stability of three-dimensional small blocks when an arch dam in China is not treated. Including the design and production of the model, measuring point layout and load measurement, test results and analysis. The overload capacity and failure mechanism of the arch dam and the two dam shoulders under the influence of the over-head of the overpass were analyzed. The main factors affecting the safety of the project and the weak parts were also pointed out.