基于PS-InSAR和SBAS-InSAR技术的延安新区地面沉降监测研究  

Land Subsidence Monitoring Research of Yan’an New Area Based on PS-InSAR and SBAS-InSAR

作　　者：王鹏[1] 高雅萍[1] 蒋亚楠 尚嘉宁 WANG Peng;GAO Yaping;JIANG Yanan;SHANG Jianing(School of Earth Science,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学地球科学学院,成都610059

出　　处：《河南科学》2020年第11期1806-1813,共8页Henan Science

基　　金：四川省科技计划(2020YJ0362,2020YFS0353)。

摘　　要：基于2019年3月—2020年3月共33景Sentinel-1A数据,采用PS-InSAR和SBAS-InSAR时序处理方法获取延安新区地面沉降信息,并分析导致地面不均匀沉降的原因.研究结果表明:①研究区大部分区域比较稳定,平均形变速率集中在-10~10 mm/a;地面沉降主要位于行知南路(尚品尊邸小区)-遵义大街-瑞金街-子长路-轩辕大道-志丹路-东方红大道-中环大道-上海东路-肤施大道(尚品尊邸小区)、延州大道、延安市交警支队新城大队东侧.②地面沉降受黄土湿陷性和压缩性、高填方体、城市扩张、人类活动、交通循环载荷、集中使用地下水等因素影响.Based on the Sentinel-1A data of 33 scenes from March 2019 to March 2020,the PS-InSAR and SBAS-InSAR time-series processing method was used to obtain land subsidence information in Yan’an New Area and the causes of deformation was analyzed.The research shows that:①Most areas are relatively stable,and the average deformation rate is concentrated at-10-10 mm/a.The ground subsidence is mainly located at Xingzhi South Road(Shangpinzundi District)-Zunyi Street-Ruijin Street-Zichang Road-Xuanyuan Avenue-Zhidan Road-Dongfanghong Avenue-Zhonghuan Avenue-Shanghai East Road-Fushi Avenue(Shangpinzundi Community),Yanzhou Avenue and East of Xincheng Brigade of Traffic Police Detachment of Yan’an City.②Land subsidence is affected by the collapsibility and compressibility of loess,high fill,urban expansion,human activities,traffic cyclic load,concentrated use of groundwater and other factors.

关 键 词：Sentinel-1A 延安新区 PS-INSAR SBAS-InSAR 地面沉降 

分 类 号：P237[天文地球—摄影测量与遥感]