水库地震台网及大坝强震系统在水电工程安全监测中的作用探讨

Exploring the Roles of the Seismic Network for Reservoirs and Strong Earthquake System for Dams in Safety Monitoring of the Hydropower Engineering

近10年来,因新修订或出台的法律法规强制要求,越来越多的大型水电工程中增设了水库地震台网及大坝强震监测系统。本文以贵州境内的水库地震台网及大坝强震系统记录到的典型事件为例,通过对库区地震事件定位、地震性质分析、滑坡事件监测、大坝对库区小震的放大效应进行分析,探讨了水库地震台网及大坝强震系统在水电站工程安全监测中的作用。

In recent 10 years,the seismic networks for reservoirs and strong earthquake systems for dams are added in more and more large hydropower projects due to the mandatory requirements of the newly revised or introduced laws and regulations.This article takes the typical events recorded by the seismic networks for reservoirs and strong earthquake systems for dams in Guizhou Province as an example,to explore the roles of the reservoir seismic network and dam strong earthquake system in safety monitoring of the hydropower engineering by the event positioning of the earthquakes in reservoir areas,analysis of seismic properties,monitoring of landside events,analysis of small earthquakes’amplification effect on the dam.