Anti-Seismic Numerical Analysis of Water Intake Structure of Pakistan Karachi K-2/K-3 Nuclear Power Plant

Abstract

Based on the actual conditions of Pakistan Karachi K2/K3 Nuclear Power Plant (NPP), the special topic of seismic numerical simulation calculation and anti-seismic numerical analysis of water intake structure are introduced. Firstly, the project profile of K2/K3 NPP is briefly presented, including the preliminary design, the soil conditions of site, and the purpose and contents of the proposed special topics. Then, the physical and mechanical qualities of the foundation are introduced. Next, the method for calculating the designed ground motion parameters of engineering site are proposed and parts of results are listed which meet the provisions of standard and can be used as an input data for the anti-seismic analysis. Finally, anti-seismic analysis of water intake gate shaft, water intake tunnel, and diversion dike and bank revetment of water intake channel is described, respectively. Through the numerical analysis, it can be concluded that the design scheme put forward in the design can adopt appropriate reinforcement measures and the marine structure is stable under SL2 earthquake loading.