摘要
连云港位于"一带一路"的交汇处,沿海开发建设导致地表载荷和地质环境发生重大变化。针对出现的地面沉降问题,基于多主影像相干目标小基线技术,利用2017年1月至2018年12月25期Radarsat-2超宽精细模式SAR影像数据,对连云港市进行地表沉降监测。基于监测结果进一步深入剖析徐圩港区东、西防波堤的沉降影响状况及研究区地面沉降诱发因素。结果表明区域沉降最严重位置位于连云港徐圩港区,最大沉降速率达251.7 mm/a。徐圩港区东、西防波堤皆出现较为明显的沉降。
Lianyungang is located at the intersection of"the Belt and Road".Coastal development and construction have caused major changes in surface load and geological environment.Aiming at the problem of land subsidence,we carried out the land subsidence monitoring in the Lianyungang by multi-image coherent targets small baselines InSAR technology and 25 scenes Radarsat-2 extra fine mode SAR images from January 2017 to December 2018.Based on the monitoring results,we further analyzed the deformation effect of the east and west breakwaters in Xuwei Port area,and the inducing factors of land subsidence.The results show that the Xuwei Port of Lianyungang is the most serious subsidence region,of which maximum subsidence rate reaches 251.7 mm/a,and the east and west breakwaters in Xuwei Port area have obvious subsidence.
出处
《地理空间信息》
2021年第10期55-59,I0002,共6页
Geospatial Information
基金
江苏省自然资源科技项目(2020039)。
