基于SBAS-InSAR技术的武汉地区地面沉降监测与分析

Monitoring and Analysis of Land Subsidence in Wuhan Based on SBAS-INSAR Technology

利用SBAS-InSAR技术反演出武汉地区的形变时间序列,对其中3个沉降量较大区域进行重点分析,总结出研究区监测范围内的地表形变规律。结合相关资料,对研究区地面沉降影响因素进行了初步讨论。研究结果表明:随着社会发展,影响武汉地区地面沉降的主要因素是过度开采地下水,其中东西湖区与大量开采矿产资源密切相关,金银湖地区与周围城市建设工程有关,月湖地区与周围工业化发展有关,降雨量对研究区的地面沉降也有所影响。应加强研究区地面沉降监测,规范开采等措施来缓解地面沉降的发展趋势。

The SBAS-INSAR technology was used to invert the deformation time series in Wuhan area,and the surface deformation law in the monitoring range of the study area was summarized by focusing on the analysis of three areas with large subsidence.Combined with relevant data,the influencing factors of land subsidence in the study area are preliminarily discussed.The results show that along with the social development,the main factors influencing the ground subsidence in wuhan is excessive exploitation of groundwater,the dongxihu closely associated with a large number of mining mineral resources,gold and silver lake area with the surrounding urban construction engineering,moon lake area with the development of industrialization,rainfall is somewhat effect on land subsidence in the study area.We should strengthen the monitoring of land subsidence and standardize mining to alleviate the development trend of land subsidence.