[1]李治斌,党星海,蔡明祥,等.基于PSInSAR技术的珠海市地表沉降监测与归因分析[J].自然灾害学报,2021,30(01):038-46.[doi:10.13577/j.jnd.2021.0104]
 LI Zhibin,DANG Xinghai,CAI Mingxiang,et al.Subsidence monitoring and analysis of Zhuhai based on PSInSAR technology[J].,2021,30(01):038-46.[doi:10.13577/j.jnd.2021.0104]
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基于PSInSAR技术的珠海市地表沉降监测与归因分析
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
30
期数:
2021年01期
页码:
038-46
栏目:
出版日期:
2021-02-28

文章信息/Info

Title:
Subsidence monitoring and analysis of Zhuhai based on PSInSAR technology
作者:
李治斌1 党星海1 蔡明祥2 赵健赟3 郁林1 李先怡4
1. 兰州理工大学 土木工程学院, 甘肃 兰州 730050;
2. 武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079;
3. 青海大学 地质工程系, 青海 西宁 810016;
4. 珠海欧比特宇航科技股份有限公司, 广东 珠海 519080
Author(s):
LI Zhibin1 DANG Xinghai1 CAI Mingxiang2 ZHAO Jianyun3 YU Lin1 LI Xianyi4
1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
2. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;
3. Department of Geologic Engineering, Qinghai University, Xining 810016, China;
4. Zhuhai Orbita Aerospace Science & Technology Co. Ltd., Zhuhai 519080, China
关键词:
PSInSAR沉降监测归因分析Sentinel-1A未固结软土
Keywords:
PSInSARsubsidence monitoringattribution analysisSentinel-1Aunconsolidated soft soil
分类号:
P237;X43
DOI:
10.13577/j.jnd.2021.0104
摘要:
为明确珠海市地表沉降s时序变化特征及其原因,通过PSInSAR技术对2017-2019年55景Sentinel-1A数据进行处理和分析,利用CORS站设置连续观测水准点的方法对获取的沉降结果进行验证。结果表明,该方法监测结果与水准测量成果间的相关系数R2为0.6420,RMSE为3.8114mm/y,珠海市明显沉降区域主要分布在高栏港经济区,鸡啼门河道两侧和白蕉镇,以及横琴新区,调查发现沉降原因主要是人为的填海造陆及未固结软土下沉,其中由于工程建设导致的沉降占总沉降面积的8.74%,填海造成的沉降占17.75%,由于未固结软土下沉导致的沉降占73.51%。研究结果可为珠海市的城市建设和灾害防治提供科学依据。
Abstract:
To clarify the temporal variation characteristics and causes of time-series changes of surface subsidence in Zhuhai, the data of 2017-2019 years and 55 scenes Sentinel-1A were processed and analyzed by PSInSAR technology, and the settlement results were verified by setting up continuous observation leveling points at CORS station. The results show that the correlation coefficient R2 between the monitoring results and the leveling results is 0.6420, and the RMSE is 3.8114mm/y. The remarkable settlement areas of Zhuhai are mainly distributed in Gaolan Port Economic Zone, both sides of the Jitimen River, Baijiao Town and Hengqin. It is found that the main causes of settlement was artificial land reclamation and unconsolidated soft soil subsidence. The settlement caused by the project construction accounted for 8.74% of the total settlement area, the settlement caused by reclamation made up for 17.75%, and the settlement caused by subsidence of unconsolidated soft soil occupied 73.51%. The results can provide a scientific basis for urban construction and disaster prevention in Zhuhai city.

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备注/Memo

备注/Memo:
收稿日期:2020-01-01;改回日期:2020-09-07。
基金项目:国家自然科学基金项目(51968042)
作者简介:李治斌(1995-),男,硕士研究生,主要从事SAR灾害监测评估研究.E-mail:1728700070@qq.com
通讯作者:党星海(1972-),男,教授,主要从事测绘地理信息及结构健康监测研究.E-mail:40288878@qq.com
更新日期/Last Update: 1900-01-01