In this study,taking Huailai seismic station as an example, the joint fixed-point deformation observation results and PS-In-SAR technique monitoring results are used to study the group anomaly mechanism of the fixed-point deformation observation instrument from November 2017 to March 2018. The results show that the center of ground subsidence near the Huailai seismic station is located at the pumping well in Yihebu village; the starting time of ground subsidence and the occurrence of group observation anomalies of the fixed-point deformation observation instruments are same as the time of extracting groundwater from the heating pumping well in Yihe-bu village during the heating period. In summary, it is believed that during the heating period, the pumping activity of the pumping well used for heating in Yihebu village resulted in group observation anomalies in the fixed-point deformation observation instruments at Huailai seismic station; at the same time, this technology can be widely applied to the study of anomaly mechanism observed by fixed-point deformation instruments.
关键词
PS-InSAR/怀来地震台/定点形变/群体异常/抽水
Key words
PS-InSAR/Huailai seismic station/fix point deformation/group anomalies/pumping