Satellite Imaging of Earthquake Geotechnical Highway Damage

Recent major earthquakes around the world have highlighted the complexity of assessing geotechnical damage and thus additional hazards immediately after the earthquake due to the scale of these events as well as factors such as the challenging topography in the earthquake region and the decrease in mobility due to impacted infrastructure. This is particularly important given that in many cases, even after the primary earthquake, significant new hazards are created due to secondary effects such as "quake lakes", tsunami and seasonal rainfall and these can produce additional catastrophic events. This paper will use a number of cases to show how pre/post remotely sensed information from satellite imagery can be utilized and evaluated to provide rapid assessment of continuing hazard for highway infrastructure. A number of new geographic information system (GIS) based analysis tools have been adapted or developed to facilitate these studies by allowing automated extraction of geometric information. In particular, delineation of two dimensional slope profiles from digital elevation models (DEM) along highways is presented.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 3041-3049
  • Monograph Title: GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering

Subject/Index Terms

Filing Info

  • Accession Number: 01530411
  • Record Type: Publication
  • ISBN: 9780784412121
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 2:06PM