Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cavity Expansion Theory and the Cone Penetration Test in Unsaturated Sands
Cavity expansion theory has long been used to interpret cone penetration test results in saturated soils. The pressure required to expand a spherical cavity approaches a limiting value at large strains, and this limiting value is thought to be related to cone penetration resistance. However, there is very little experience in interpreting the cone penetration test in unsaturated soils using cavity expansion theory. Practitioners often use correlations developed for saturated soils which may lead to non-conservative misrepresentations in estimated soil parameters. This paper gathers the results of cone penetration tests in two unsaturated quartz sands and highlights the similarities between spherical cavity limit pressure and cone penetration resistance. In some cases the effects of suction causes both the cone penetration resistance and cavity limit pressure to be doubled. The contribution of suction to effective stress is back-calculated using these results.
Cavity Expansion Theory and the Cone Penetration Test in Unsaturated Sands
Cavity expansion theory has long been used to interpret cone penetration test results in saturated soils. The pressure required to expand a spherical cavity approaches a limiting value at large strains, and this limiting value is thought to be related to cone penetration resistance. However, there is very little experience in interpreting the cone penetration test in unsaturated soils using cavity expansion theory. Practitioners often use correlations developed for saturated soils which may lead to non-conservative misrepresentations in estimated soil parameters. This paper gathers the results of cone penetration tests in two unsaturated quartz sands and highlights the similarities between spherical cavity limit pressure and cone penetration resistance. In some cases the effects of suction causes both the cone penetration resistance and cavity limit pressure to be doubled. The contribution of suction to effective stress is back-calculated using these results.
Cavity Expansion Theory and the Cone Penetration Test in Unsaturated Sands
Russell, A. R. (Autor:in) / Khalili, N. (Autor:in)
Fourth International Conference on Unsaturated Soils ; 2006 ; Carefree, Arizona, United States
Unsaturated Soils 2006 ; 2546-2557
17.03.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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