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本文针对功果桥水电站的现场实际情况,就强震观测系统在功果桥水电站中的应用,从强震监测台阵布设的技术和方法做了详细阐述,包括强震系统的设计、强震台阵的构成、仪器的性能指标以及数据采集分析等。通过分析可知,功果桥水电站强震观测系统可以在强震发生后短时间内获取强震动加速度记录,迅速记录地震波,从而得出坝体不同部位的地震反应过程。借此强震动记录,可以研究大坝结构对地震动的影响、确定地震动衰减规律,为震后判定大坝建筑物的安全性和修复提供基础性技术数据。同时,可以积累丰富的大坝强震数据,为同类大坝的抗震设计和相关地震工程发展积累基础资料。
In this paper, according to the actual situation of the Gongguoqiao Hydropower Station, the application of the strong earthquake observation system in the Gongguoqiao Hydropower Station is elaborated from the techniques and methods of the strong earthquake monitoring array deployment, including the design of strong earthquake system, strong earthquake Array formation, the performance of the instrument as well as data acquisition and analysis. Through the analysis, it can be seen that the strong observation system of the Gongguoqiao Hydropower Station can obtain the records of strong vibration accelerations in a short time after the strong earthquakes and quickly record the seismic waves to obtain the seismic responses of different parts of the dam. With this strong seismic record, the influence of dam structure on ground motion can be studied, the law of attenuation of ground motion can be determined, and the basic technical data can be provided for judging the safety and repair of dam buildings after the earthquake. At the same time, abundant dam strong earthquake data can be accumulated to accumulate basic data for the seismic design of similar dams and the related seismic engineering development.