Hydraulic Property Estimation Using Piezocone Results

• Published in: Journal of geotechnical and geoenvironmental engineering Vol. 136; no. 3; pp. 456 - 463
• Main Authors: Song, C. R, Pulijala, S
• Format: Journal Article
• Language: English
• Published: Reston, VA American Society of Civil Engineers 01.03.2010
• Subjects: Applied sciences; Buildings. Public works; Computation methods. Tables. Charts; Exact sciences and technology; Geotechnics; Soil investigations. Testing; Stabilization. Consolidation; Structural analysis. Stresses; TECHNICAL PAPERS; Cone penetration tests; Coefficient of consolidation; Elastoplasticity; Soil test; Penetration test; Numerical simulation; Piezocone; Hydraulic conductivity; Soil consolidation; Hydraulic properties
• ISSN: 1090-0241; 1943-5606
• DOI: 10.1061/(ASCE)1090-0241(2010)136:3(456)

Governing underground water flow, hydraulic properties such as hydraulic conductivity or coefficient of consolidation are major geotechnical parameters. Determination of hydraulic properties, however, is traditionally time consuming and expensive. This research proposes an easy and economical way of determining the hydraulic properties of soils through piezocone penetration tests. Pore pressure responses of soils from piezocone penetration tests are numerically analyzed herein by the coupled theory of mixtures, which is based on the large strain elastoplasticity. Using the numerical results, the effects of input parameters are evaluated. Simple equations are also derived for a faster estimation of the hydraulic conductivity or the coefficient of consolidation of soils. The hydraulic properties predicted by these derived equations agree reasonably with the measured results.