SEDL / STP / STP883-EB / STP36350S

Toward a Unified Approach to Soil Property Characterization: In Situ Versus Laboratory

Chaney, RC
Associate professor, Department of Environmental Resource Engineering, and director, Telonicher Marine Laboratory, Humboldt State University, Arcata, CA

Demars, KR
Associate professor, University of Connecticut, Storrs, CT

Fang, H-Y
Professor and chairman of Geotechnical Engineering Division, Lehigh University, Bethlehem, PA

Pages: 15    Published: Jan 1985

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Abstract

This paper presents a review and analysis of a number of methods of correcting laboratory strength values to in-situ strengths. Methods presented are (1) utilization of an empirical correction factor, (2) use of an analytical model to extrapolate in-situ strength values from tests on disturbed laboratory samples, and (3) direct computation of strength values using residual pore-water pressures extrapolated from lab test data. Data indicate that the analytical and pore-water procedures are the most valid methodologies. The SHANSEP technique is discussed in relation to the analytical procedures.