Viability assessment of terrestrial LiDAR for retaining wall monitoring

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Title: Viability assessment of terrestrial LiDAR for retaining wall monitoring
Authors: Laefer, Debra F.
Lennon, Donal
Permanent link: http://hdl.handle.net/10197/2162
Date: Mar-2008
Abstract: The decreased cost and increased processing speed for terrestrial laser scanners have made this remote sensing procedure much more attractive. The approach has two major advantages over traditional surveying: (1) a registration of the survey instrument independent of any physical benchmarks. Thus, if the entire area is experiencing subsidence, the quality of the final results will not be compromised as they will be absolute measurements, as opposed to relative ones because they are based on a global positioning registration; (2) the ability of the technologies to highlight cracks in masonry. Unfortunately, despite major advances in the equipment and software, the technology is arguably not fully ready for the task of automated retaining wall monitoring. This paper will outline the challenges that remain with respect to registration and displacement monitoring.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Publisher: American Society of Civil Engineering (ASCE)
Copyright (published version): 2008 ASCE
Keywords: Retaining wall;LiDAR;Displacement;Monitoring;Remote sensing
Subject LCSH: Optical radar
Retaining walls
Structural health monitoring
DOI: 10.1061/40971(310)31
Language: en
Status of Item: Peer reviewed
Is part of: Reddy, K.R., Khire, M. V. and Alshawabkeh, A. N. (eds.). GeoCongress 2008: Geosustainability and Geohazard Mitigation (GSP 178) : Proccedings of GeoCongress 2008, Orleans, Louisiana March 9-12, 2008
Conference Details: GeoCongress 2008 : Geosustainability and Geohazard Mitigation, March 9-12, 2008, New Orleans
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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