Deterministic-Empirical Backcalculation of LWD Deflection Basins
A new method of calculating layered-elastic moduli from Light Weight Deflectometer (LWD) deflection basins is introduced. The suggested procedure is called “Deterministic-Empirical Backcalculation” since it utilizes closed-form solutions to calculate at least two modulus values, or stiffnesses, from LWD load-deflection data on a point-by-point basis. At least three deflection readings are required at appropriate distances from the LWD loading plate, depending on the structure tested and the diameter (200 or 300 mm) of the plate. Background technical information is provided on the theory behind and the development of the Deterministic-Empirical Backcalculation (acronym—DEB) methodology.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9780415871990
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Supplemental Notes:
- Abstract reprinted with permission of Taylor & Francis.
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Corporate Authors:
CRC Press/Balkema
P.O. Box 447
2300 AK Leiden, Netherlands -
Authors:
- Stubstad, Richard N
- Korsgaard, H C
- Pedersen, J P
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Conference:
- Bearing Capacity of Roads, Railways and Airfields. 8th International Conference (BCR2A'09)
- Location: Champaign IL, United States
- Date: 2009-6-29 to 2009-7-2
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Web
- Edition: e-book ISBN 9780203865286
- Features: Figures; References; Tables;
- Pagination: pp 689-694
- Monograph Title: Bearing Capacity of Roads, Railways and Airfields. Proceedings of the 8th International BCR2A'09 Conference
Subject/Index Terms
- TRT Terms: Backcalculation; Falling weight deflectometers; Load tests; Mathematical models; Modulus of elasticity; Pavements; Stiffness
- Uncontrolled Terms: Light weight deflectometers
- Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01343263
- Record Type: Publication
- ISBN: 9780415871990
- Files: TRIS
- Created Date: Jun 28 2011 3:07PM