Road Construction Earthwork Volume Calculation Using Three-Dimensional Laser Scanning
Terrestrial laser-scanning (TLS) technology can be used to create a detailed model before and after construction to determine earthwork quantities. Cost-effective implementation of this technology requires that field operations are planned to efficiently acquire sufficient scan data and that data processing is able to filter out off-terrain points to provide an accurate bare earth model. This research developed a workflow for using TLS on road projects and created a customized computer program with a graphical user interface. Scans taken before and after construction were planned using the best available terrain model. Point cloud data were converted to station/offset coordinates for viewing cross-sections and generating the surface. An algorithm was developed, based on the finite element method, to create a surface through the lowest scan points. This surface was converted to a Triangulated Irregular Network (TIN) file, and earthwork quantities were calculated by comparing the TIN of the original terrain to that of the finished project.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/07339453
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Supplemental Notes:
- Copyright © 2012 American Society of Civil Engineers
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Authors:
- Slattery, Kerry T
- Slattery, Dianne K
- Peterson, James P
- Publication Date: 2012-5-1
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References;
- Pagination: pp 96-99
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Serial:
- Journal of Surveying Engineering
- Volume: 138
- Issue Number: 2
- Publisher: American Society of Civil Engineers
- ISSN: 0733-9453
- Serial URL: http://ascelibrary.org/journal/jsued2
Subject/Index Terms
- TRT Terms: Earthwork; Laser radar; Mapping; Road construction; Surveying; Topography
- Subject Areas: Construction; Design; Geotechnology; I51: Earthworks and Soil Drainage; I52: Construction of Pavements and Surfacings;
Filing Info
- Accession Number: 01371609
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: May 31 2012 11:32AM