RT info:eu-repo/semantics/article
T1 Correlations between p-wave velocity and SPT-N for saturated and unsaturated alluvial clays using dimensional analysis
A1 Ortiz Palacio, Santiago
A1 Ibáñez García, Sergio
A1 Sancho Calderón, Diego
A1 Porres Benito, José Ángel
K1 p-wave
K1 SPT-N
K1 Dimensional analysis
K1 Ingeniería
K1 Engineering
K1 Geología
K1 Geology
AB The aim of this research is to establish practical and robust correlations between dilatational wave velocities (p-wave velocities, Vp) and the Standard Penetration Test blow count (SPT-N). Very low levels of correlation are recorded with the conventional single variable approaches, in consequence, a multivariable study is needed for higher precision. A dimensional analysis was conducted including other soil parameters that condition this physical phenomenon, such as the void ratio (e), the degree of saturation (Sr), the effective overburden pressure (σ′v), and the particle density (γs), for greater precision with Vp and SPT-N correlations. Over 100 seismic and SPT tests were performed around the coastal city of Juchitán de Zaragoza (Oaxaca), Mexico, to gather information for this research. As a result, two dimensionless indexes -DSIu (Undrained Dilatational Stiffness Index) and MDSIu (Modified Undrained Dilatational Stiffness Index)- yielded two alternative expressions between both indexes and Vp. In this way, a strong relationship between Vp and SPT-N was obtained with an adjusted coefficient of determination R2 value of 0.93.
PB Elsevier
SN 0267-7261
YR 2024
FD 2024-02
LK http://hdl.handle.net/10259/8505
UL http://hdl.handle.net/10259/8505
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 11-may-2024