气候变化领域集成服务门户(CCPortal): Monitoring Differential Subsidence along the Beijing-Tianjin Intercity Railway with Multiband SAR Data

CCPortal

DOI	10.3390/ijerph16224453
	Monitoring Differential Subsidence along the Beijing-Tianjin Intercity Railway with Multiband SAR Data
	Shi, Min; Chen, Beibei; Gong, Huili; Li, Xiaojuan; Chen, Wenfeng; Gao, Mingliang; Zhou, Chaofan; Lei, Kunchao
通讯作者	Chen, BB (通讯作者)
发表日期	2019
ISSN	1661-7827
EISSN	1660-4601
卷号	16 期号:22
英文摘要	High-speed railways have strict standards of infrastructure deformation and post-construction settlement. The interferometric synthetic aperture radar (InSAR) has the ability to detect ground deformation with a high accuracy and wide coverage and is becoming a useful tool for monitoring railway health. In this study, we analyzed the Beijing-Tianjin Intercity Railway (BTIR) track using InSAR time-series analysis with different data sets. First, by using RADARSAT-2 images, we examined the areas along the BTIR with significant subsidence. Then, we characterized these areas by means of X-band TerraSAR-X data. We adopted the expectation (Ex) and entropy (En) method, combined with GIS spatial analysis, to analyze the ground settlement differences on both sides of the railway. The results show that the area with the most severe differential settlement occurs between 12 and 20 km along the railway and within 120 to 20 m on both sides of the Chaoyang-Tongzhou section (CTS). Thereafter, we analyzed the reasons for the large difference in this area by considering different factors, e.g., regional land subsidence, groundwater level changes, and the dynamic load. In addition, we studied the impact of regional subsidence on the safe operation of the BTIR. The results show that the maximum different settlement along the BTIR is within the safe range, according to the high-speed railway design standard between 2010 and 2015. This study aims to provide technical support for assessing the impact of subsidence on the safety of railway operations.
关键词	INSAR TIME-SERIES LAND SUBSIDENCE DEFORMATION INTERFEROMETRY URBANIZATION DISPLACEMENT SCATTERERS PLAIN
英文关键词	high-speed railway; subsidence; different settlement; InSAR
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS记录号	WOS:000502057400150
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259443
推荐引用方式 GB/T 7714	Shi, Min,Chen, Beibei,Gong, Huili,et al. Monitoring Differential Subsidence along the Beijing-Tianjin Intercity Railway with Multiband SAR Data[J]. 中国科学院青藏高原研究所,2019,16(22).
APA	Shi, Min.,Chen, Beibei.,Gong, Huili.,Li, Xiaojuan.,Chen, Wenfeng.,...&Lei, Kunchao.(2019).Monitoring Differential Subsidence along the Beijing-Tianjin Intercity Railway with Multiband SAR Data.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(22).
MLA	Shi, Min,et al."Monitoring Differential Subsidence along the Beijing-Tianjin Intercity Railway with Multiband SAR Data".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.22(2019).