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Predictive equations of shear wave velocity for Bay of Campeche sand

Meyer, V. (ed.), Frontiers in Offshore Geotechnics III: proceedings of the Third International Symposium on Frontiers in Offshore Geotechnics (ISFOG 2015), Oslo, Norway, 10-12 June 2015, CRC Press, Boca Raton, pp. 1115-1120.

10 Jun 2015
Taboada, V.M., Roque, D.C., Nabor, P.B., Carrión, S.D.R., Hernández Duron, J.M. and Gan, K.C.
DOI: 10.1201/b18442-166

A database with in-situ measurements of VS and cone tip resistance (qc), and basic soil properties of sand has been established from fifteen offshore geotechnical investigations performed in the Bay of Campeche. Values of VS were obtained from P-S logging. The database was tailored to develop empirical correlations for VS and Gmax based on qc (or relative density), void ratio and effective stress, using linear regression analyses. To evaluate the accuracy of the correlations, a comparison was made between VS computed from three recommended empirical correlations, and in-situ measurements of VS at an independent site.The predictions of VS fall in a rather narrow band, 15 percent lower and higher than the in-situ measurements of VS, concluding that these equations provide a useful approach to estimating VS for use in ground response analyses at sites where time-constraints and finite resources prevent the feasibility to make in-situ VS measurements.


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