罗汉桥水电站对超宽频带地震计记录资料的影响分析

Research on the Influence of Hydropower Station on Seismic Data of Ultra-wideband Seismometer

采用成都地震监测中心站的超宽频带地震计JCZ-1T记录的测震资料进行研究时发现,资料中存在2~4Hz干扰以及固定时段的低频长周期波动。本研究围绕台站附近的罗汉桥水电站进行多方位移动观测,并在低频长周期波动时段内利用实地调查情况与波形实时形态进行对比分析。结果显示:2~4 Hz干扰以及低频长周期波动均与罗汉桥水电站存在直接关联。

When using the seismic data recorded by the ultra-wideband seismometer JCZ-1 T from the Chengdu Earthquake Monitoring Center Station,we found that a 2~4 Hz interference is existed in the data,which is accompanied by a low frequency long-period fluctuation during a fixed time period.This paper focused on multi-directional mobile observations at the Luohanqiao Hydropower Station near the seismic station,and analyzed the real-time waveforms with field surveys during low-frequency and long-period fluctuations.The research results show that the 2~4 Hz interference and low frequency long-period fluctuation are directly related to the Luohanqiao Hydropower Station.