ABNORMAL TRACKING ANALYSIS OF FENGYANG VOLU-METRIC STRAIN DATA IN CHUZHOU CITY
The body strain component of the TJ-2 volumetric borehole strain gauge at the Feng Yang seismic station started to change in an accelerated downward direction from 23 March 2023.After a detailed investiga-tion of the various disturbing factors and environmental changes,the analysis concludes that the construction of the fluid observation well reaming next to the deformation well of the station is the main disturbing source of the accelerated downward change of the body strain.After tracking and analysing the body strain data of Fengyang Seismic Station for one year since the completion of the construction of the fluid well in June 2023,it is be-lieved that the data affected by the drilling of the well have gradually returned to normal.
Fengyang seismic station of Chuzhou CityVolumetric borehole strain gaugeAnomaly tracking