Geotechnical Influence on the Acoustic Properties of Marine Sediments of the Santos Basin, Brazil

被引：19

作者：

Neto, Arthur Ayres ^{[1
]}

Teixeira Mendes, Joana De Noronha ^{[1
]}

Goncalves De Souza, Juliana Maria ^{[1
]}

Redusino, Miguel, Jr. ^{[1
]}

Bastos Pontes, Rodrigo Leandro ^{[1
]}

机构：

[1] Univ Fed Fluminense, Dept Geol, BR-24210346 Niteroi, RJ, Brazil

来源：

MARINE GEORESOURCES & GEOTECHNOLOGY | 2013年 / 31卷 / 02期

关键词：

geotechnics; marine geophysics; sediments; WAVE VELOCITIES; COMPRESSIONAL-WAVE; SEA-FLOOR; POROSITY; SHEAR; LITHOLOGY; GRAVITY;

D O I：

10.1080/1064119X.2012.669815

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

There are several problems associated with core location and sediment deformation during the coring procedure. Geophysical investigation of the seafloor using acoustic systems, such as high-resolution seismic and single-beam sediment classification, provides a very cost-effective evaluation on the distribution of sedimentary environments. The present study investigates the relationship between acoustic impedance and geotechnical properties of shallow marine sediments from the Santos Basin, Brazil. A total of eight cores from different geological settings were collected and measurements of P-wave velocity (Vp), gamma density, mean grain size, void ratio, water content and shear strength were conducted. The results show that, despite different trends according to the sedimentary environment, the acoustic impedance correlates very well with all geotechnical parameters analyzed.

引用

页码：125 / 136

页数：12

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