雅砻江流域中下游地震监测系统实现

Implementation of the Earthquake Monitoring System for the Cascade Hydropower Stations at the Mid- and Down-stream of the Yalongjiang River Basin

雅砻江流域中下游水库库坝区具备孕育水库诱发地震的条件,又是典型的高坝大库工程,应当对水库及其周围地区的地震活动进行监测。雅砻江流域中下游水库诱发地震监测系统是电站工程专用小孔径密集型地震监测系统,重点监测库坝区特别是可能诱发地震库段的地震活动情况,为提高库坝区的防震减灾能力提供科学的决策依据。系统采用了卫星、数传电台、超短波、 CDMA和有线传输方式的混合组网方式来确保数据的传输,由38个地震监测台、 5个中转站、 2个汇集站和系统监测中心组成。

It is necessary to monitor earthquakes for the reservoir and surrounding areas because the reservoir dam area of the cascade hydropower stations at the mid- and down-stream of the Yalongjiang river basin is not only capable of inducing earthquakes but also a typical high-dam with large-reservoir project. The reservoir induced earthquake monitoring system for the cascade hydropower stations at the mid- and down-stream of the Yalongjiang river basin is a dedicated small diameter dense seismic monitoring network for power station projects. The focus is to monitor the seismic activities in the reservoir dam area, particularly the sections that has the potential of inducing earthquakes,and to provide scientific basis for decision making in order to promote the emergency response of the reservoir dam area. Consisted of 38 monitoring stations,5 relay stations,2 aggregation stations and a system monitoring center,the system adopts a mixed architecture that includes satellites,digital radios, ultrashort wave,CDMA and wired system to ensure the transmission of seismic data.