Recorded seismic response of Yele Dam during "5.12" Wenchuan Earthquake

A disastrous M8.0 earthquake happened in Wenchuan,Sichuan Province at 14:28 on May 12,2008.The Yele Dam site was shocked strongly at an epicentral distance of about 258 kilometers.The monitoring station on the dam obtained comparatively complete records of "5.12" Wenchuan Earthquake.Based on the earthquake records of Yele Dam,its seismic response were analyzed by use of the time history method and the spectral analysis method.Combined with the analysis of monitored data of other earthquakes,the effects of the Wenchuan Earthquake on Yele Dam was studied.It was concluded that Yele Dam remained in normal working state after the great Earthquake.Moreover,through the contrastive analysis of dynamic response between "5.12 " Wenchuan earthquake and the previous ones,some distinct seismic response laws of Yele Dam were acquired,and they were closely associated with its peculiar geological condition.