大型水电站地下厂房的水力振动数值分析

Problems in establishing finite element model for dynamic analysis of underground powerhouse at present were first introduced. Then Xi Luodu hydropower station that is under construction with the biggest installed capacity in China is taken as an example. Based on model test data, typical load cases were chosen to perform dynamic analysis in time domain for the underground powerhouse excited by pressure fluctuation. Results show that amplitudes of dynamic stress, displacement and acceleration meet the suggested vibration standard.