Abstract
Dam damaged is one of common forms about lifeline engineering after earthquake raids. Based on the analysis of the seismic damaged conditions of 825 dams in Mianyang City, this paper establishes a dam’s seismic vulnerability matrix that suite for the Chinese specification. Compares the Mianyang city’s earth-rock dam seismic vulnerability matrix with the ATC-13’s that based on Delphi method, the vulnerability of dams in the Wenchuan earthquake is quite different with ATC-13’s, earth-rock dams of Mianyang City appear to be more vulnerable during earthquake. Base on date of seismic vulnerability matrix in Mianyang city, vulnerability curves are established. The vulnerability curves that fitted by beta function can be used to predict Chinese earth-rock dam’ seismic damage.
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