Stress And Stability Analysis Of Naen Hyperbolic Arch Dam

Geological condition of Naen reservoir dam site is extremely complicated.Although the project belongs to gradeâ…¢, "Arched concrete dam DesignStandard" of our country indicates that regarding gradeâ… ,â…¡project, or the quitecomplex situation's arch dam (for example, arch dam is equipped with big hole,ground condition is complex and so on), we should carry on the, finite elementmethod computation or the structural model experiment to wok out the stressand stability.The ANSYS software is used to analyze this project. According to theprovided terrain, geology, temperature climate and arch dam arrangement data,the spatial geometry model is established, carrying out the model'sThree-dimensional finite element analyses. The thesis chooses single curvatureand double curvature arch dam of Naen carrying out comparison. The stressscatter, resist smoothly stability of dam foundation, and displacement of the damare calculated in many lode cases.According to the result, stresses and maximum displacements of archcoronary girder of single curvature arch dam are bigger than double curvaturearch dam. And on the account of stability, the underside of single curvature archdam can not meet requirement of stability. According to the calculation, wechoose double curvature arch dam, and we analyze the gallery's stress of doublecurvature arch dam. That conclusion of double curvature arch dam's design is rational.The stress and stability being under construction has been analyzed briefly. But it hasn't been solved completely. Our later work is analyzing dam body stress and resisting smoothly stability in the time being under construction, rather than checking stress analyses in the studying work time. It is very important to the relevant theory.The finite element analysis result has provided the basis to make the further optimization for this project. As to similar projects, it also has very big reference value.