Application of Limit Equilibrium Method to Stability Analysis of Jinping I High Arch Dam Abutment on 3d Multi-Grid Method

Abstract:

Based on nonlinear finite element analysis, three-dimensional elastoplastic numerical simulation of Jinping I high arch dam is developed. By using the method of multiply mesh, the stress result of FEM is transferred to any sliding surface (flat or curved), and the safety factors of sliding blocks are computed. The elastic-plastic calculation results indicate that the stress and displacement distributions are basically symmetrical to the river valley. The minimal safety factor of the left abutment under the basic condition is 4.88(larger than 3.5), which appears in the 1740m elevation in the temperature drop condition. However, the minimal safety factor of the right abutment under the basic condition is 3.41(less than 3.5), appearing in the 1710m elevation in the temperature rise condition, which means the necessity of the reinforcement measures to the right abutment.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 499-506
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.499
• Online since: September 2013
• Authors: Jing Wei Li, Chen Chen, Wei Wei
• Keywords: Hydraulic Engineering, Jinping I High Arch Dam, Rigid Body Limit Equilibrium Method

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