Download or read book Comparison of Field Vane and Laboratory Undrained Shear Strength in Soft Sensitive Clays written by CC. Ladd and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the paper is to compare, at two different sites, the field vane strength with the undrained shear strength measured in laboratory on intact clay specimens cut from block samples. The laboratory tests included triaxial compression, triaxial extension, and direct simple shear tests on specimens anisotropically reconsolidated to the in-situ stresses. The laboratory undrained shear strength was determined on averaged stress strain curves built from the three types of laboratory tests in order to account for strain compatibility. At both sites, the undrained shear strengths obtained by the field vane and by the laboratory tests are nearly identical. The comparison is discussed in terms of field vane correction.

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 The Comparison Between Field And Laboratory Vane Shear Test for Kuantan Soft Clay Soil written by Mohd Tarzizi Mohamed and published by . This book was released on 2008 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Undrained Shear Strength Profiles for Soft Clays at Six Sites in Texas written by David A. Varathungarajan and published by . This book was released on 2009 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparison of Soil Shear Strengths as Determined with Field and Laboratory Vane Shear Apparatus written by E. B. Hall and published by . This book was released on 1966 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing use of the field vane shear apparatus3,4 has been noted during the past several years. Even with the many limitations it possesses, a defined degree of reliability has been attached to this method of determining the undrained shear strength of fine-grain plastic soils.

Download or read book Comparison of Field Vane Results with Other In Situ Test Results written by RG. Campanella and published by . This book was released on 1988 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Undrained shear strength results from field vane shear tests are compared with those obtained from flat plate dilatometer, screw plate, pressuremeter, and piezocone tests at several sites in the lower mainland near Vancouver, British Columbia, Canada. The sites include deltaic deposits of soft organic soils, clay silts, and moderately to highly sensitive clays. The sites consist primarily of normally consolidated soils, but results in overconsolidated soils are also included. The test procedures and methods of interpretation are briefly described for each in-situ test type in addition to a discussion of the results.

Download or read book Vane Shear Behavior of Soft Bangkok Clay written by TH. Seah and published by . This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field vane shear test is one of the most common in situ tests to obtain the undrained shear strength of soft clay. Uncoupling of the torque generated by the soil resistance along the vertical and horizontal planes of the vane has been done by conducting conventional direct shear test and newly developed vertical direct shear test on the soil. From the shear stress-displacement relationship of the direct shear tests, simple analysis is performed to simulate the field vane behavior at various depths. The results of the simulation agree well with those obtained from the field vane tests on soft Bangkok clay. The conventional method of computing the undrained shear strength of the field vane shear based on the maximum torque is close to the equivalent average value from the shear box tests. A special laboratory triaxial vane apparatus was also used to study the shearing behavior of the soft clay with the capability of Ko-consolidating the sample before conducting the vane shear test. The results of the triaxial vane tests were also compared with the predictions. The predicted torque values are lower than the experimental data for the same angle of rotation.

Download or read book Factors Affecting the Measurements and Interpretation of the Vane Strength in Soft Sensitive Clays written by A. Leblanc and published by . This book was released on 1988 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vane tests have been carried out in the field and in the laboratory to investigate some factors affecting the measurements and interpretation of the test, specially the disturbance caused by the insertion of the vane into the clay and the time and shear velocity effects on the strength. Strength rotation curves and failure diagrams have been investigated in the laboratory. The results have shown that the insertion of the vane produces disturbance and generates pore pressure so that the vane strength measured is reduced while time effect leads to an increase in shear strength. Study of the failure diagram shows that the actual shear surface is larger than the cylindrical surface defined by the diameter of the blades.

Download or read book Comparison of In Situ Vane Cone Penetrometer and Laboratory Test Results for Gulf of Mexico Deepwater Clays written by RJ. Ebelhar and published by . This book was released on 1988 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Site investigations were recently performed offshore at three prospective plat-form sites in water depths between 400 and 500 m in the Gulf of Mexico. Soil conditions at the sites generally range from very soft clays near the seafloor to very stiff clays at 120- to 150-m penetration. Analyses of stress history indicate the soils at these locations are generally normally consolidated. Laboratory tests were performed on recovered specimens to deter-mine the undrained shear strength. Standard laboratory miniature vane shear tests and unconsolidated-undrained triaxial tests were performed in addition to consolidated-undrained tests using stress history and normalized soil engineering properties (SHANSEP) procedures. Tests performed in the field included in-situ vane and cone penetrometer. Cone factors Nk were computed using in-situ vane shear strengths as the reference strength.

Download or read book Geotechnical Abstracts written by and published by . This book was released on 1992 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vane Shear and Cone Penetrtion Resistance Testing of In situ Soils written by and published by ASTM International. This book was released on with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shear Strength Determination of Soft Clayey Soil by Field and Laboratory Methods written by E. B. Hall and published by . This book was released on 1964 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Corps of Engineers has prepared a basic report of investigation for proposed underwater barriers in the San Francisco Bay area. In completing this study, it has been necessary to obtain soil design constants and to develop methods of analyses. This paper deals with the comparison of field vane-shear results and shear-strength constants as developed in the laboratory. The tests were conducted on soft bay mud that had been overlain for several years with a large displacement type fill.

Download or read book Soil Mechanics and Geotechnical Engineering written by D.L. Shah and published by CRC Press. This book was released on 2003-01-01 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dealing with the fundamentals and general principles of soil mechanics and geotechnical engineering, this text also examines the design methodology of shallow / deep foundations, including machine foundations. In addition to this, the volume explores earthen embankments and retaining structures, including an investigation into ground improvement techniques, such as geotextiles, reinforced earth, and more

Download or read book Soil Mechanics in Engineering Practice written by Karl Terzaghi and published by John Wiley & Sons. This book was released on 1996-02-07 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one of the best-known and most respected books in geotechnical engineering. In its third edition, it presents both theoretical and practical knowledge of soil mechanics in engineering. It features expanded coverage of vibration problems, mechanics of drainage, passive earth pressure, and consolidation.

Download or read book History of Progress written by W. Allen Marr and published by ASCE Publications. This book was released on 2003-01-01 with total page 2392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sponsored by the Geo-Institute of ASCE This collection of 78 historical papers provides a wide view of the rich body of literature that documents the development of fundamental concepts geotechnical engineering and their application to practical problems. From the highly theoretical to the elegantly practical, the papers in this one-of-a-kind collection are significant for their contributions to the geotechnical engineering literature. Among the writings of more than 60 geotechnical engineering pioneers are several by Karl Terzaghi, widely known as the father of soil mechanics, R.R. Proctor, Arthur Casagrande, and Ralph Peck. Many of these papers contain information as useful today as when they were first written. Others provide great insight into the origins and development of the field and the thought processes of its leaders.

Download or read book On the Sensitivity of Soft Clay Obtained by the Field Vane Test written by Yan-Bin Gao and published by . This book was released on 2015 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field vane test (FVT) is used more widely today in traditional site investigations to investigate the sensitivity of soft clay and even likely to replace the unconfined compression test (UCT). In this paper, the strengths and sensitivities of Shanghai soft clays obtained by an FVT and a UCT from a traditional site investigation and that obtained by the laboratory vane test (LVT) and the UCT on block samples were compared in detail. It was found that the FVT obtains higher strengths but lower sensitivity. This phenomenon was also observed in other soft clays. The unreliability of sensitivity determination by the FVT seems to increase with the liquid index and sensitivity of soil. The vane remolding method used in the FVT was found to be the major factor that causes these problems and cannot remold soil completely using the recommended number of vane rotations.

Download or read book Reliability and Statistics in Geotechnical Engineering written by Gregory B. Baecher and published by John Wiley & Sons. This book was released on 2005-08-19 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Risk and reliability analysis is an area of growing importance in geotechnical engineering, where many variables have to be considered. Statistics, reliability modeling and engineering judgement are employed together to develop risk and decision analyses for civil engineering systems. The resulting engineering models are used to make probabilistic predictions, which are applied to geotechnical problems. Reliability & Statistics in Geotechnical Engineering comprehensively covers the subject of risk and reliability in both practical and research terms * Includes extensive use of case studies * Presents topics not covered elsewhere--spatial variability and stochastic properties of geological materials * No comparable texts available Practicing engineers will find this an essential resource as will graduates in geotechnical engineering programmes.