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Title: Mechanistic Approach for Relating Test Roller Penetration to Strength Properties of Bases and Subgrades
Accession Number: 01088453
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Theoretical formulas that relate penetration depth of a test roller to strength properties of bases and subgrades are presented. The algebraic expressions, derived using the generalized bearing capacity formula employed regularly in geotechnical practice, specifically relate angle of internal friction and soil cohesion to the penetration depth of a towed, rigid wheel with a known force (weight) applied. The existence of such a relationship has the potential to reinvent test rolling as a quality assurance tool capable of providing a continuous record of in situ soil strength measurements along a roadway. Besides supplying a means for interpretation of test roller measurements, the proposed formulas provide a method for practitioners to investigate the influence of modifying test roller characteristics (such as reducing weight or changing wheel size) and to calibrate a test roller to be particularly sensitive to certain soils. The predictions show promising agreement with results from three-dimensional numerical simulation and experimental data.
Monograph Title: Monograph Accession #: 01084478
Report/Paper Numbers: 08-1000
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Hambleton, James PaulDrescher, AndrewPagination: 15p
Publication Date: 2008
Conference:
Transportation Research Board 87th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures; Photos; References
(18)
TRT Terms: Subject Areas: Construction; Highways; I52: Construction of Pavements and Surfacings
Source Data: Transportation Research Board Annual Meeting 2008 Paper #08-1000
Files: TRIS, TRB
Created Date: Jan 29 2008 3:20PM
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