基于同相叠加方法的定点形变观测降雨影响与异常识别

Analysis of rainfall influence characteristics and anomaly identification based on fixed-point deformation observation based on in-phase superposition method

利用同相位叠加方法,对常熟地震台洞体应变仪、水管倾斜仪、垂直摆倾斜仪观测数据中的转折图像及其对应时段的降雨数据进行叠加,分析形变观测降雨影响变化模式特征,在此基础上,将垂直摆在降雨时段出现的几次异常转折数据同相叠加,识别发现异常与降雨影响无关,应为地壳构造活动的应力变化所致。

Based on the in-phase superposition method,the transition images in the Changshu Seismic Station body strain gauge,water pipe tilt meter,and vertical pendulum observation data and the rainfall data in the corresponding time period are superimposed,and the characteristics of the change pattern of the deformation observation rainfall are analyzed.Several anomalous turning data that appear vertically during the rainfall period are superimposed in phase,and it is found that it has nothing to do with the impact of rainfall and should be affected by the stress change of the crustal tectonic activity.