Soil and rock properties in a young volcanic deposit on the Island of Hawaii / H. G. Brandes in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 6 (Juin 2011)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 597-610 Titre : Soil and rock properties in a young volcanic deposit on the Island of Hawaii Type de document : texte imprimé Auteurs : H. G. Brandes, Auteur ; I. N. Robertson, Auteur ; G. P. Johnson, Auteur Année de publication : 2011 Article en page(s) : pp. 597-610 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Volcanic soil Saprolite Seismic velocity Vesicular basalt Rock strength Mineralogy Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Deeply weathered lava flows of oceanic basalt reflect the mode and sequence of volcanic deposition, parent mineralogy, and postdepositional erosional and weathering processes. In turn, these are controlled by geology, geography, and climate. One particular site on the Island of Hawaii has been the focus of study to gain a better understanding of complex residual soil deposits, particularly in connection with a need to characterize seismic strong-motion propagation through decomposed surface soil and rock sequences. Materials at the site range from fully weathered volcanic soils, sometimes with unusual mineralogy and plasticity properties, to saprolite, weathered rock, vesicular basalt, and hard rock. Seismic surveys were conducted to investigate the distribution of these materials at the study site. Laboratory tests focused on saprolite and vesicular rock as two materials that are seldom reported on and that remain poorly characterized, at least with regard to conditions found in Hawaii. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p597_s1?isAuthorized=no [article] Soil and rock properties in a young volcanic deposit on the Island of Hawaii [texte imprimé] / H. G. Brandes, Auteur ; I. N. Robertson, Auteur ; G. P. Johnson, Auteur . - 2011 . - pp. 597-610. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 6 (Juin 2011) . - pp. 597-610 Mots-clés : Volcanic soil Saprolite Seismic velocity Vesicular basalt Rock strength Mineralogy Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Deeply weathered lava flows of oceanic basalt reflect the mode and sequence of volcanic deposition, parent mineralogy, and postdepositional erosional and weathering processes. In turn, these are controlled by geology, geography, and climate. One particular site on the Island of Hawaii has been the focus of study to gain a better understanding of complex residual soil deposits, particularly in connection with a need to characterize seismic strong-motion propagation through decomposed surface soil and rock sequences. Materials at the site range from fully weathered volcanic soils, sometimes with unusual mineralogy and plasticity properties, to saprolite, weathered rock, vesicular basalt, and hard rock. Seismic surveys were conducted to investigate the distribution of these materials at the study site. Laboratory tests focused on saprolite and vesicular rock as two materials that are seldom reported on and that remain poorly characterized, at least with regard to conditions found in Hawaii. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i6/p597_s1?isAuthorized=no

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