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本文简述了在现有垂直形变资料(精度为10~(-3)～10~(-6))分析中,应用理论公式、回归分析等,排除其受“热形变”、地下水、干旱、降雨和气温干扰的方法;着重探讨了用稳定可靠的基岩点作依据、借辅助观测量建立近似数学模型等分析方法,排除长线水准资料中土层点下沉干扰、地温和断层无震蠕动对台站水准,以及地表水位变化对面倾斜的干扰问题。用两倍噪声水平作噪声限来鉴定余差中的信息、捕捉地震前兆,取得了一定的效果。
In this paper, we briefly describe the application of the theoretical formula and regression analysis to the analysis of the existing vertical deformation data (accuracy 10 ~ (-3) ~ 10 ~ (-6)), excluding the “hot deformation”, groundwater, Rainfall and temperature. The paper focuses on the basis of stable and reliable bedrock points and the establishment of approximate mathematical model by the aid of observational methods to eliminate the subsidence of soil layer in long-term leveling data, On the station level, as well as the surface water level changes across the tilt interference problems. With twice the noise level as the noise limit to identify the information in the residual, to capture the earthquake precursor, and achieved some results.