Download or read book In Situ Vane Shear Testing at Sea written by B. McClelland and published by . This book was released on 1988 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-situ vane shear testing to measure undrained shear strength in the offshore environment has experienced increased use and significant equipment improvements over the last decade. These changes arose from (1) the offshore petroleum industry's need to improve the quality of foundation site investigations for their structures, (2) technological advancements in mechanical and electrical systems, and (3) recognition by the geotechnical profession of the benefits of acquiring vane shear testing data for better interpretation of cohesive soil strength properties. This paper provides insight into the current international practice of in-situ vane shear testing by presenting results of a questionnaire to international experts. The paper also describes the historical developments that led to the current state of practice. A review of field vane deployment and important operational details is presented along with an appraisal of the applications of vane shear testing for foundation design purposes. The paper also presents various case studies demonstrating how vane shear testing data proved beneficial for offshore foundation design. Finally, the paper summarizes the author's opinions relative to the current state of the art of offshore vane shear testing and includes comments on possible future developments and applications.
Download or read book Vane Shear Strength Testing in Soils written by Adrian F. Richards and published by ASTM International. This book was released on 1988 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objectives of the symposium were to review the state of knowledge of the vane shear test (VST) and to provide the latest information on test theory, methods, and interpretation for the purpose of improved standardization of the field and laboratory vane tests."--Overview.
Download or read book Evaluation of Offshore In Situ Vane Test Results written by Jt Hoope and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An evaluation is presented of results from about 450 tests obtained with an offshore in-situ vane during geotechnical investigations in the North Sea and off the west coast of India. The soils tested are normally consolidated and included silts and clays with differing carbonate contents. The strength values of the in-situ vane are compared with strength results from triaxial tests, laboratory vane, and Torvane tests. These data are also correlated with in-situ test results obtained with the piezocone penetrometer. The in-situ vane shear strength data show a small scatter, and good agreement was found with unconsolidated undrained (UU) triaxial test results. The rate of post peak reduction in soil strength, measured on the vane shear strength-rotation curve, appears to depend on plasticity. Based on this study it is recommended that the vane be rotated to a minimum of 40° for very plastic clays to approximately 150° for clays with low plasticity, to determine post-peak strength behavior with great accuracy. It is suggested that the undrained shear strength values determined with the in-situ vane may be of greater value than other undrained shear strength measurements for axial pile design purposes. This study also yielded encouraging estimates of the coefficient of lateral stress at rest K0 based on in-situ vane and triaxial test data.
Download or read book Strength Testing of Marine Sediments written by Ronald C. Chaney and published by ASTM International. This book was released on 1985 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Philadelphia, PA : ASTM, 1985.
Download or read book A Comparison of In Situ and Laboratory Vane Shear Measurements written by A. L. Inderbitzen and published by . This book was released on 1970 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-situ (in place) vane shear measurements and penetration tests were made to depths of 133 cm into the sea floor sediment by use of a vane shear device. These tests were made in the San Diego Trough off San Diego, California, at a water depth of 1,240 meters. The bottom consisted of silty clay material which was uniform throughout the test area. Sediment cores were obtained 60 to 90 cm from five of the six in-situ test sites. Vane shear measurements were made in the laboratory on the core samples at the same depths as the in-situ tests and results compared. Results of the study indicate that the vane shear strengths determined by in-situ tests are consistently higher than the laboratory test values. (Author).
Download or read book Our Seabed Frontier written by National Research Council and published by National Academies Press. This book was released on 1989-02-01 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The establishment of the U.S. Exclusive Economic Zone (EEZ) in 1983 "for the purpose of exploring, exploiting, conserving, and managing natural resources" presents the nation with an opportunity and a challenge to wisely use its diverse resources. Besides living resources such as fisheries, this vast region contains extensive and potentially valuable mineral and energy resources, and is used for various other purposesâ€"such as waste disposal, pipelines, cables, and military uses. This book assesses the state of knowledge of seafloor properties and processes as they relate to future utilization of the U.S. EEZ seabed.
Download or read book In Situ Testing Methods in Geotechnical Engineering written by Alan J. Lutenegger and published by CRC Press. This book was released on 2021-05-03 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Situ Testing Methods in Geotechnical Engineering covers the field of applied geotechnical engineering related to the use of in situ testing of soils to determine soil properties and parameters for geotechnical design. It provides an overview of the practical aspects of the most routine and common test methods, as well as test methods that engineers may wish to include on specific projects. It is suited for a graduate-level course on field testing of soils and will also aid practicing engineers. Test procedures for determining in situ lateral stress, strength, and stiffness properties of soils are examined, as is the determination of stress history and rate of consolidation. Readers will be introduced to various approaches to geotechnical design of shallow and deep foundations using in situ tests. Importantly, the text discusses the potential advantages and disadvantages of using in situ tests.
Download or read book The Effect of Varying the Parameters of Vane Shear Tests of Marine Sediments written by James Charles Singler and published by . This book was released on 1971 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The consequences resulting from varying the parameters of the vane shear test (used to determine the shear strength of marine sediments) were investigated. Experiment showed that larger ratios of container diameter to vane diameter yield more accurate shear strengths. It was also shown that the four-bladed vane produced the best results. Finally, rates of rotation of one and two revolutions per hour were found to give accurate values of shear strength, while higher rates of rotation proved to be unsatisfactory. (Author).
Download or read book Initial Reports of the Deep Sea Drilling Project written by Scripps Institution of Oceanography and published by . This book was released on 1969 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seafloor Processes and Geotechnology written by Ronald Chaney and published by CRC Press. This book was released on 2015-11-04 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal resource for civil engineers working with offshore structures, pipelines, dredging, and coastal erosion, Seafloor Processes and Geotechnology bridges the gap between the standard soil mechanics curriculum of civil engineering and published material on marine geotechnology. Utilizing organized information on sediments and foundations for ma
Download or read book Deepwater Foundations and Pipeline Geomechanics written by William O. McCarron and published by J. Ross Publishing. This book was released on 2011-09-15 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practicing engineers in the offshore and reservoir engineering industry will find this timely volume filled with practical advice and expert information on current oil field development from oil exploration to production.
Download or read book Geotechnical Engineering of Ocean Waste Disposal written by K. R. Demars and published by ASTM International. This book was released on 1990 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints Essa Institute for Oceanography written by and published by . This book was released on 1966 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of GeoShanghai 2018 International Conference Fundamentals of Soil Behaviours written by Annan Zhou and published by Springer. This book was released on 2018-05-10 with total page 1026 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second volume of the proceedings of the 4th GeoShanghai International Conference that was held on May 27 - 30, 2018. The book, entitled “Fundamentals of Soil Behaviours”, presents the recent advances and technology in the understanding and modelling of fundamentals of soil’s behaviours. The subject of this book covers a wide range of topics related to soil behaviours in geotechnical engineering, geoenvironmental engineering and transportation engineering. The state-of-the-art theories, methodologies and findings in the related topics are included. This book may benefit researchers and scientists from the academic fields of soil and rock mechanics, geotechnical engineering, geoenvironmental engineering, transportation engineering, geology, mining and energy, as well as practical engineers from industry. Each of the papers included in this book received at least two positive peer reviews. The editors would like to express their sincerest appreciation to all of the anonymous reviewers all over the world, for their diligent work.
Download or read book Marine Research 1973 written by United States. National Oceanic and Atmospheric Administration and published by . This book was released on 1973 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Offshore Site Investigation written by Society for Underwater Technology (SUT) and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: c. P. Wroth, Oxford University, UK I am grateful to the Organising Committee that were covered on the first day. First, we for the invitation to attempt to sum up the had Dr Riemersma talking about positioning proceedings. Summing up is not really the requirements, and it seemed to me to be an appropriate phrase - it is a difficult job to unhappy reflection on human frailty that he do justice in a summary to the amount of was concentrating so much on the errors in material that has been presented over the the system and on the human factors that two days of the conference. Clearly, each led to trouble, emphasizing that the techni paper merits further individual attention in ques are vastly superior to the ability of the order to reflect on its content. What I am human beings who used them. Then, Dr going to say must necessarily be an unbal Palmer talked about a fascinating case his anced critique, because we are considering a tory of the Ocean Thermal Power Project; whole range of knowledge and experience in this was of particular interest because most a wide diversity of topics, and my comments of the other stories we heard were not so are bound to be biased by my own interests. specific and not about such a novel project.
Download or read book Civil Engineering Structures on Soft and Sensitive swelling Soils written by and published by . This book was released on 1993 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
