大型水电站地下厂房应重视抗震研究

Seismic damage of underground hydropower house in the past were first introduced. Then based on viscous-spring boundary theory and equivalent seismic load method, Xiao Wan hydropower house excited by vertical shear wave was taken as an example to perform seismic analysis in time domain. As responses such as displacement, velocity, acceleration and stress of underground powerhouse are different in amplitude and wave shape compared with those of ground powerhouse, it is necessary and significant to conduct seismic research for large scale underground hydropower house.