Download or read book Residual Strength of Clay and Clay shales by Rotation Shear Tests written by Daniel P. LaGatta and published by . This book was released on 1970 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this investigation were to develop a rotation shear machine to measure the residual shear strength (constant shearing resistance at which material undergoes continuous deformation under a constant state of effective stress) of clays and clay-shales; investigate testing errors; and measure residual shear strengths of representative types of highly plastic clays and clay-shales. In the rotation shear test, torque is applied to the bottom of the specimen and two force transducers measure the couple necessary to maintain the upper half of the specimen stationary. Disc-shaped or annular specimens with thicknesses from 0.1 to 2.5 cm and outside diameters of 7.11 cm can be tested. Variations in residual shear strength were investigated for normally consolidated versus overconsolidated specimens, for specimens sheared at different rates of peripheral displacement, and for specimens prepared by several different remolding procedures. (Author Modified Abstract).
Download or read book Report on Residual Strength of Clay and Clay shales by Rotation Shear Tests written by Daniel P. La Gatta and published by . This book was released on 1970 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Properties of Clay Shales written by Frank C. Townsend and published by . This book was released on 1974 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report compares various laboratory procedures and equipment used for determining the residual strength of clay shales. The effects of testing apparatus, specimen type, normal load, and rate of displacement on the residual strength of various clay shales were evaluated by relations between residual strength and Atterberg limits, grain size, and mineralogy were examined. (Modified author abstract).
Download or read book Effects of Specimen Type on the Residual Strength of Clays and Clay Shales written by PA. Gilbert and published by . This book was released on 1976 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation was an examination of the effects of testing apparatus, specimen type and density, normal stress, and sequence of loading on the residual strength of various clays and clay shales. Annular shear and repeated direct shear tests were conducted on intact shale specimens with precut failure planes, while comparison rotational shear tests were conducted on the same shale material subjected to various degrees of remolding. Test results indicate that comparable residual strengths can be obtained, regardless of equipment type and procedure or degree of remolding. Supplemental annular shear tests on residual clay and silty sand show that precutting of the failure plane or the specimen density has no effect on the ?r' value. The residual friction angle is independent of stress history and normal load [when greater than 2 kg/cm2 (1.96 x 105 Pa)].
Download or read book The Effect of Rate of Displacement on Measuring the Residual Strength of Clays written by Daniel P. LaGatta and published by . This book was released on 1971 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotation shear tests were performed with a device developed to measure residual shear strengths of clays clay shales, on annual specimens of remolded Bearpaw shale and remolded London clay. Rates of displacement in comparative tests, are expressed in peripheral velocities of the annular specimens. (Author).
Download or read book Laboratory Shear Strength of Soil written by Ramond Nen Yong and published by ASTM International. This book was released on 1981 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Specimen Preparation for Laboratory Testing written by and published by ASTM International. This book was released on 1976 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clay and Shale Slope Instability written by William C. Haneberg and published by Geological Society of America. This book was released on 1995 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten papers address both empirical and analytical aspects of clay and shale slope instability. Among the topics discussed in detail are: limit equilibrium stability analysis, shear strength of clay and clayey colluvium, use of triaxial test data to evaluate viscoplastic slope movements, numerical modeling of pore pressure distribution in heterogeneous soils, rational analysis of rainfall and landslide movement patterns, the effects of hydrothermal alteration on slope stability, mudrock durability and stability considerations, and regional clay and shale slope stability problems in Italy.
Download or read book Study of Clay Shale Slopes Along the Panama Canal written by Don Charles Banks and published by . This book was released on 1975 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared for Office, Chief of Engineers, U.S. Army, Washington, D.C. and the Panama Canal Company
Download or read book Engineering Properties of Clay Shales written by William Heley and published by . This book was released on 1971 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Slope Stability Engineering written by J.C. Jiang and published by Routledge. This book was released on 2021-07-28 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers covers a wide range of relevant issues and aspects of slope stability engineering from both practical and scientific points of view from the Proceedings of the International Symposium on Slope Stability Engineering : Is--Shikoku'99 : Matsuyama, Shikoku, Japan, 8-11 November, 1999.
Download or read book Shear Behavior of Composite Soils written by Yanrong Li and published by CRC Press. This book was released on 2016-12-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has the purpose of developing an understanding of the factors determining and influencing the shear behavior of soils, with emphasis on composite soils, as they are the most encountered materials in geological and geotechnical engineering in mountainous areas. This objective is reached by examining the soil compressibility, structure of shear zone and its evolution, and water content of shear zone and shear mode of soils together with analyses of the influences of intrinsic properties, e.g. Atterberg limits, particle size distribution, particle shape, and testing conditions, e.g. normal stress and shearing rate. An in-depth review is presented in an approximately chronological order and covers almost all the factors that are believed to influence the mechanical behavior of soils. The equipment and test techniques for shear strength of soils are detailed. The residual shear behavior of composite soil is investigated by means of a systematic laboratory testing program using a large ring shear apparatus and an intermediate direct shear box. The Fast Fourier Transform is employed for the first time to analyze the fluctuations of measured shearstress and discovers the close relationships with both intrinsic properties of soils and testing conditions. Although the book is aimed primarily at researchers in geological and geotechnical engineering, it contains material of interest to students of geology and soil science and also should be a useful reference for practicing engineers faced with composite soils.
Download or read book Engineering Sites written by and published by Elsevier. This book was released on 2013-10-22 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in Geotechnical Engineering, Vol. 14B: Rockslides and Avalanches, 2: Engineering Sites focuses on initiatives to offer a foundation for studies of mass movement phenomena in the Western Hemisphere. The selection first takes a look at the contributions of Josef Stini to engineering, geology, and slope movement investigations, the concept of Karl Terzhagi on rockslides, and the contributions of Laurits Bjerrum to the mechanics of rockslides. Concerns cover stability of hard rock slopes, influence of geological details, relation between slide process and remedial treatment, water pressure in pores and fractures, slope creep, rockslides, and avalanches, and early warning of an impending slide. The publication then examines rock slope movements with hydroelectric power projects in Mexico, Bighorn Reservoir slides in Montana, U.S.A., rock avalanche and wave at Chungar, Peru, and wedge rockslides in Libby Dam and Lake Koocanusa in Montana. The text examines Hogarth Pit slope failure in Ontario, Canada, pit slope performance in shale in Wyoming U.S.A., Twin Buttes pit slope failure in Arizona, U.S.A., and the Prime Mine slope failure in Arizona, U.S.A. Discussions focus on stability analyses, description of slope failures, cause of failure, remedial actions, geotechnical properties of tertiary shales, and subsequent slope performance. The selection is a valuable source of data for researchers interested in rockslides and avalanches.
Download or read book Slope Stability Engineering written by Institution of Civil Engineers (Great Britain) and published by Thomas Telford. This book was released on 1991-04-15 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume draws on the experience and extensive research of an international authorship to bring together details on slope stability, causes of landslides, landslide prevention, new techniques for assessing and predicting stability, new methods for stabilising slopes and the special considerations for coastal situations.
Download or read book Earth Manual written by United States. Bureau of Reclamation and published by . This book was released on 1990 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laboratory Shear Strength of Soil written by Raymond Nen Yong and published by ASTM International. This book was released on 1981 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Memodrandum written by Waterways Experiment Station (U.S.) and published by . This book was released on 1975 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
