区域地下水变化对GNSS基准站的形变影响研究  

Study on the Influence of Regional Groundwater Variation on the Deformation of GNSS Base Station

作　　者：邓晓景 檀继猛[1] 韩宝刚[1] 邵士成[1] 陈法超 DENG Xiaojing;TAN Jimeng;HAN Baogang;SHAO Shicheng;CHEN Fachao(Jinan Geotechnical Investigation and Surveying Institute,Jinan 250101,China)

机构地区：[1]济南市勘察测绘研究院,山东济南250101

出　　处：《城市勘测》2024年第6期100-103,109,共5页Urban Geotechnical Investigation & Surveying

摘　　要：GNSS基准站时间序列数据受到区域地下水变化因素的影响会存在周期项和趋势项,本文通过分析地下水的水位变化规律,与基准站时间序列数据进行对比分析,计算得出地下水变化对基准站形变的影响大小,研究结果表明:地下水水位变化对基准站的形变影响主要体现为垂直方向的形变,地下水水位变化对基准站的垂向位移存在较大影响,其中,HEZE基准站为5.7 mm/m,LICH基准站为23.0 mm/m;地下水水位变化对GNSS基准站的水平位移影响较小,呈现弱相关状态。该研究为地下水变化影响GNSS基准站形变规律提供了参考依据。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 groundwater 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.

关 键 词：周期项 趋势项 地下水变化 基准站形变 

分 类 号：P228[天文地球—大地测量学与测量工程] P641.74[天文地球—测绘科学与技术]