BEARING CAPACITY OF FLEXIBLE PAVEMENTS SUBJECT TO FROST ACTION
THE BEARING CAPACITY OF FLEXIBLE PAVEMENTS IS REDUCED CONSIDERABLY DURING THE SPRING BREAKUP PERIOD PARTLY BY REDUCTION IN RELATIVE DENSITY OF THE SUBGRADE MATERIAL AS A RESULT OF FROST ACTION, PARTLY BY THE SATURATION OF THE SOIL CAUSED BY THAWING AND PARTLY BY EXCESS PORE PRESSURE RESULTING FROM THE INCOMPLETE RECONSOLIDATION OF THE SUBGRADE. A METHOD HAS BEEN DEVELOPED BY WHICH THE ULTIMATE BEARING CAPACITY OF FLEXIBLE PAVEMENTS CAN BE EVALUATED. THIS METHOD IS BASED ON THE ASSUMPTION THAT THE SUBGRADE SOILS ARE FULLY SATURATED AND THAT THE WHEEL LOADS CAUSING FAILURE ARE APPLIED SO RAPIDLY THAT NO CHANGE IN WATER CONTENT TAKES PLACE DURING LOADING. THE CALCULATED ULTIMATE BEARING CAPACITY HAS BEEN COMPARED TO THAT DETERMINED BY A METHOD PROPOSED BY LINELL. GOOD AGREEMENT WAS FOUND BETWEEN THE TWO METHODS. /AUTHOR/
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Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Broms, Bengt B
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Discussers:
- Benkelman, A C
- Publication Date: 1963
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 166-180
- Monograph Title: Stresses in soils and layered systems
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Serial:
- Highway Research Record
- Issue Number: 39
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Bearing capacity; Calculation; Consolidation; Development; Evaluation; Flexible pavements; Frost action; Saturated soils; Subgrade (Pavements)
- Uncontrolled Terms: Computation; Reconsolidation
- Old TRIS Terms: Bearing capacities
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 00206192
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Dec 12 1994 12:00AM