格尔木水平摆倾斜前兆异常的综合分析

COMPREHENSIVE ANALYSIS ON PRECURSORY ANOMALIES OF GOLMUD HORIZONTAL PENDULUM TILT

格尔木水平摆倾斜在2018年开始出现趋势性转折异常的变化,围绕此次异常变化进行深入分析,通过倾斜异常曲线的去年变分析、潮汐因子异常特征分析和相关测项的对比分析等不同方法,认为2018年1月1日出现的倾斜趋势转折异常属于异常信度较高的前兆异常。结合区域应力分布特征和区域前兆异常演化特征,发现格尔木水平摆倾斜东西分量作为一项趋势性转折异常符合异常空间分布和异常演化进程。

Golmud horizontal tilt inclinometer began to show anomalous changes in 2018.This paper has carried out in-depth analysis around the abnormal change,and removed different analysis methods such as annual change,tidal factor and comparison of related items.The study concluded that the anomaly of the tilting trend that occurred on January 1,2018 is a precursory anomaly with high abnormality.Combining the regional stress distribution characteristics and the regional precursor anomaly evolution characteristics,the results are that the EW component of Golmud horizontal tilt is a trend transition anomaly that accords with the anomalous spatial distribution and anomalous evolution process.