Arch dam is a beautiful engineering structure, it has good mechanical properties, it is widely used in water conservancy engineering, in order to have a clear understanding for mechanical characteristics of arch dam structure. Using the finite element method for concrete arch dam of shuangchong reservoir gives simulation analysis,and the arch stress, deformation distribution in the course of construction and operation.The results show that a reasonable for concrete arch structure of shuangchong reservoir to meet the design requirements.Research for the design and construction of concrete single curved arch structures provide some reference. The results showed that, concrete single curved arch dam of Shuangchong reservoir is reasonable and feasible, arch dam's maximum tensile stress value appear junction of arch dam and bedrock, most of the stress values are smaller, stress and displacement values can meet engineering requirements.
Bifurcated pipe belongs to complex spatial structure, and when it bears the inner and the external water pressure, the bifurcation structure enters in complex stress state. Dongjiang Hydropower Station is located upstream of the Xiangjiang River tributary in the southeastern territory of Zixing, Hunan province and it is a large hydropower projects with comprehensive benefits such as a power generation, flood control, navigation, and industrial and agricultural water using and so on. In this paper, using the finite element method of reinforced concrete bifurcation structure of Dongjiang hydropower station analyzes the stress so that the analysis results play a vital role in providing strong theoretical evidence for the operation if it is safe. The results prove that the surrounding rock are binding on the bifurcation pipe so that fork tubes can significantly reduce stress and have a positive impact on the safety for the bifurcation pipe.
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