Study on the Influence of Regional Groundwater Variation on the Deformation of GNSS Base Station
The GNSS reference station time series data are affected by regional groundwater change factors,and there will be periodic terms and trend terms.This paper analyzes the groundwater level change rule and makes a comparative analysis with the time series data of the reference station,and calculated the influence of groundwater change on the deformation of the reference station.The research results indicate that the influence of groundwater level changes on the deformation of reference stations is mainly reflected in vertical deformation,and ground-water level changes have a significant impact on the vertical displacement of reference stations.Among them,the HEZE reference station is 5.7mm/m,and the LICH reference station is 23.0mm/m;The impact of groundwater level changes on the horizontal displacement of GNSS reference stations is relatively small,showing a weakly correlated state.This study provides a reference basis for the influence of groundwater changes on the deformation patterns of GNSS reference stations.
periodic termtrend itemgroundwater changereference station deformation
万方数据
维普
