文章基本信息

标题：High resolution earth imaging for transport corridor slope stability risk analysis
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作者：M. Lim ; J. P. Mills ; S. L. Barr 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-1/W51
出版社：Copernicus Publications
摘要：Transport networks are fundamental to economic growth and prosperity, facilitating the nationwide transfer of goods, services and people. Many of the road and railway networks in the UK, and throughout the world, are built on ageing earthwork structures and hence are susceptible to disruption from land instability. This paper describes the use of remotely sensed datasets to analyse the risk of future failures in transport corridor earthworks. High resolution imaging systems such as light detection and ranging (lidar), photogrammetric and multispectral surveys now offer the potential for increasingly detailed earth surface information to be collected. Remotely sensed height and reflectance measurements can be used to provide quantitative records of critical slope characteristics. Although the ability to determine slope variations at a network scale will provide a valuable new tool in asset management, its development requires an extension of conventional error assessments, beyond analysis of the raw dataset to an investigation of the ability to accurately model the desired parameters for slope instability. The results of a preliminary investigation into the performance of the derived slope models are presented and the implications for both earthwork assessments and remote sensing applications for slope studies in general are discussed
关键词：Earthworks; Error Assessment; High Resolution; Monitoring; Slope Stability