基于地质测量在福州地热田区域地面沉降的研究
Study on Ground Subsidence in Fuzhou Geothermal Field Based on Geological Survey
郑哲 1陈斯恺1
作者信息
摘要
以福州地热田区域为研究对象,通过水准测量、GNSS监测以及分层标监测方法,收集了该区域2021年11月18 日—2022年11月17日的地面沉降监测数据,并结合附近4孔水位监测井的数据进行分析.结果表明,研究区域整体地面沉降不明显,地热田区域地面沉降与地下水位变化呈正相关,不同深度土层沉降幅度存在差异,土层越深,沉降幅度越大,也与地下水位变化相关程度越大.
Abstract
Taking the geothermal field area of Fuzhou City as the research object,the ground subsidence monitoring datas were collected from November 18,2021 to November 17,2022 through leveling measurement,GNSS monitoring,and layered standard monitoring methods.The water level data of four nearby water level monitoring wells are analyzed.The results indicate that the overall land subsidence in the study area is not significant,and there is a positive correlation between land subsidence in the geothermal field area and changes in groundwater level.There are differences in the subsidence amplitude of soil layers at different depths.The deeper the soil layer,the greater the subsidence amplitude,and the greater the correlation with changes in groundwater level.
关键词
地热田/地面沉降/地下水/地质测量/福州区域Key words
geothermal field/ground subsidence/groundwate/geological survey/Fuzhou area引用本文复制引用
出版年
2024
NETL
NSTL
万方数据