Data report; Strength characteristics of sediments from IODP Expedition 308, Sites U1322 and U1324

Online Access: Get full text
doi: 10.2204/iodp.proc.308.210.2009
Author(s): Dugan, Brandon; Germaine, John T.
Integrated Ocean Drillign Program, Expedition 308 Scientists, College Station, TX
Author Affiliation(s): Primary:
Rice University, Department of Earth Science, Houston, TX, United States
Other:
Albert-Ludwigs-Universität Freiburg, Federal Republic of Germany
University of California-Santa Cruz, United States
Lamont-Doherty Earth Observatory, United States
Kyoto University, Japan
University of Tokyo, Japan
Rice University, United States
Lulea University of Technology, Sweden
Universität Bremen, Federal Republic of Germany
Southampton Oceanography Centre, United Kingdom
University of Virginia, United States
Universidad de Granada, Spain
Nanjing University, Japan
Tongji University, China
Japan Agency for Marine-Earth Science and Technology, Japan
Shell International Exploration and Production, United States
University of Leicester, United Kingdom
Florida State University, United States
University of Tsukuba, Japan
Hokkaido University, Japan
Universitat de Barcelona, Spain
Shizuoka University, Japan
Vrije Universiteit Amsterdam, Netherlands
Massachusetts Institute of Technology, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Gulf of Mexico hydrogeology; Expedition 308 of the riserless drilling platform from Mobile, Alabama, to Balboa, Panama; Sites U1319-U1324, 30 May-8 July 2005
Volume Author(s): Flemings, Peter B.; Behrmann, Jan H.; John, Cédric M.; Iturrino, Gerardo J.; Aizawa, Yasutaka; Nguyen Thi Thanh Binh; De Silva, Neil; Dugan, Brandon; Edeskar, Tommy M.; Franke, Christine; Gay, Aurélien; Gilhooly, William Patrick, III; Gutierrez-Pastor, Julia; Jiang Shao Yong; Li Qianyu; Long, Hui; Moore, J. Casey; Nunoura, Takuro; Pirmez, Carlos; Reichow, Marc; Sawyer, Derek E.; Schneider, Julia; Shumnyk, Anatoliy V.; Suzuki, Takahiro; Takano, Yoshinori; Urgeles, Roger; Yamamoto, Yuzuru; Zampetti, Valentina
Source: Proceedings of the Integrated Ocean Drilling Program; Gulf of Mexico hydrogeology; Expedition 308 of the riserless drilling platform from Mobile, Alabama, to Balboa, Panama; Sites U1319-U1324, 30 May-8 July 2005, Peter B. Flemings, Jan H. Behrmann, Cédric M. John, Gerardo J. Iturrino, Yasutaka Aizawa, Nguyen Thi Thanh Binh, Neil De Silva, Brandon Dugan, Tommy M. Edeskar, Christine Franke, Aurélien Gay, William Patrick Gilhooly, III, Julia Gutierrez-Pastor, Jiang Shao Yong, Li Qianyu, Hui Long, J. Casey Moore, Takuro Nunoura, Carlos Pirmez, Marc Reichow, Derek E. Sawyer, Julia Schneider, Anatoliy V. Shumnyk, Takahiro Suzuki, Yoshinori Takano, Roger Urgeles, Yuzuru Yamamoto and Valentina Zampetti; Integrated Ocean Drillign Program, Expedition 308 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program, Vol.308. Publisher: IODP Management International, Washington, DC, United States. ISSN: 1930-1014
Note: In English. 8 refs.; illus., incl. 6 tables, sketch map
Summary: Triaxial strength experiments completed on specimens from Integrated Ocean Drilling Program Expedition 308 Sites U1322 and U1324 document internal friction angles from 17° to 29° and normalized undrained shear strength from 0.21 to 0.36 at maximum shear. Just prior to undrained shearing, lateral stress ratios for these triaxial specimens range from 0.50 to 0.73. In general, internal friction angle and normalized undrained shear strength decrease with increasing vertical consolidation stress. Lateral stress ratio does not vary systematically with vertical consolidation stress. All 18 specimens in this study were collected with the advanced piston corer (APC). Specimens from Site U1322 were from 27.3-72.9 meters below seafloor (mbsf), and those from Site U1324 were from 89.1-304 mbsf. For each specimen we completed a Ko-consolidated undrained triaxial test to provide data on the stress-strain behavior, undrained shear strength, internal friction angle, and secant modulus. Undrained shearing for each specimen was conducted at a vertical consolidation stress exceeding the hydrostatic vertical effective stress for that specimen.
Year of Publication: 2009
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 30 Engineering Geology; Atlantic Ocean; Boreholes; Consolidation; Cores; Expedition 308; Experimental studies; Friction angles; Gulf of Mexico; IODP Site U1322; IODP Site U1324; Integrated Ocean Drilling Program; Laboratory studies; Marine sediments; Mechanical properties; North Atlantic; Northern Gulf of Mexico; Sediments; Shear strength; Soil mechanics; Strain; Stress; Triaxial tests; Ursa Basin
Coordinates: N280600 N280600 W0890100 W0890200
N280500 N280500 W0890800 W0890800
Record ID: 2009041017
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.