Eighth International Conference on Case Histories in Geotechnical Engineering
Applicability of Mobile Photogrammetry to Measure Facing Displacement of Reinforced Soil Walls
Publication: Geo-Congress 2019: Earth Retaining Structures and Geosynthetics (GSP 306)
ABSTRACT
Management of the earth structures is important to ensure proper functioning of roads. Given that Japan is home to many earth structures, the basic premise of earth structure management is to prevent traffic hazards by conducting regular inspections. New inspection methods are required to reduce the use of human resources involved in earth structure management. This article discusses the applicability of mobile photogrammetry to the inspection of reinforced soil walls. A photogrammetry tool was fixed to a vehicle to measure the surface geometry of the target. The test wall was an 8.0-m high geogrid reinforced soil wall. Mobile photogrammetry data were validated by comparing the measurements obtained using the proposed method and a classical total station. The results of the mobile photogrammetry field test showed that when the speed of the mobile photogrammetry vehicle was 0 or 30 km/h, measurement errors decreased with increase in the number of pictures used in the analysis. Mobile photogrammetry results using six pictures were less affected by vehicle speed. These results support the use of the proposed system in future inspections of earth structures.
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REFERENCES
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Information & Authors
Information
Published In
Geo-Congress 2019: Earth Retaining Structures and Geosynthetics (GSP 306)
Pages: 277 - 283
Editors: Christopher L. Meehan, Ph.D., University of Delaware, Sanjeev Kumar, Ph.D., Southern Illinois University Carbondale, Miguel A. Pando, Ph.D., University of North Carolina Charlotte, and Joseph T. Coe, Ph.D., Temple University
ISBN (Online): 978-0-7844-8208-7
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Mar 21, 2019
ASCE Technical Topics:
- Business management
- Construction engineering
- Construction management
- Continuum mechanics
- Design (by type)
- Displacement (mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomatics
- Geomechanics
- Geotechnical engineering
- Inspection
- Personnel management
- Photogrammetry
- Practice and Profession
- Soil dynamics
- Soil mechanics
- Soil stabilization
- Soil structures
- Solid mechanics
- Structural design
- Structural engineering
- Structural mechanics
- Structural members
- Structural systems
- Structure reinforcement
- Structures (by type)
- Surveying methods
- Walls
Authors
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