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Shearing Resistance Of Sands During Rapid Loadings
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Book Synopsis Shearing Resistance of Sands During Rapid Loadings by : Robert V. Whitman
Download or read book Shearing Resistance of Sands During Rapid Loadings written by Robert V. Whitman and published by . This book was released on 1961 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: New experimental and theoretical results concerning the behavior of saturated sands when sheared very rapidly are presented. Included are: (1) a review of previously-existing data regarding strain-rate effects in dry sands, (2) an analysis of the errors and uncertai ties which can dev lop when testing ry and saturated sands in rapid triaxial compression, (3) new data concerning a saturated, coarse sand, nd (4) a discussion of the possible implications of the sum o al of the new an old dat . (Author).
Book Synopsis The Effect of Rate of Shearing Deformation on the Shearing Resistance of a Cohesionless Soil by : H. G. Larew
Download or read book The Effect of Rate of Shearing Deformation on the Shearing Resistance of a Cohesionless Soil written by H. G. Larew and published by . This book was released on 1967 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Response of Soils to Dynamic Loadings by : Robert V. Whitman
Download or read book The Response of Soils to Dynamic Loadings written by Robert V. Whitman and published by . This book was released on 1970 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rapid Penetration into Granular Media by : Magued Iskander
Download or read book Rapid Penetration into Granular Media written by Magued Iskander and published by Elsevier. This book was released on 2015-07-10 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid Penetration into Granular Media: Visualizing the Fundamental Physics of Rapid Penetration introduces readers to the variety of methods developed to visualize, observe, and model the rapid penetration of natural and man-made projectiles into earth materials while providing seasoned practitioners with a standard reference that showcases the topic's most recent developments in research and application. There has been a flurry of recently funded research both in the U.S. and Europe on studying the behavior of projectiles in granular media. This book compiles the findings of recent research on the subject and outlines the fundamental physics of rapid earth penetration, and assembles a comprehensive collection of experimental and numerical techniques to study the problem. - Presents a comprehensive interdisciplinary review of the latest research developments in the response of granular media to impact and impulsive loading - Combines the experience of prominent researchers from different disciplines focusing on the challenges presented by impact loading of granular media - Introduces recently developed methods for visualizing the fundamental physics of rapid penetration into granular media
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1962 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Evaluation of Earth Targets for Use in Impact Effects Studies by : Louis Jean Thompson
Download or read book Preliminary Evaluation of Earth Targets for Use in Impact Effects Studies written by Louis Jean Thompson and published by . This book was released on 1964 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aerospace Nuclear Safety Program at Sandia Corporation requires an independent assessment of the safety of all nuclear power supplies used in aerospace under all conditions from factory shipment through re-entry from space. The effects of impact against any point on the earth by a nuclear power supply or its components must be evaluated as part of this assessment. This report: (1) evluates the fundamental mechanisms involved in soil impacts by cylindrical projectiles with velocities of 500-700 feet per second; (2) defines the problem of specifying impact targets which closely simulate various portions of the earth's surface; and (3) describes an analytical and experimental program intended to obtain the information needed to properly specify a simulated earth target for use in Aerospace Nuclear Safety impact tests.
Book Synopsis List of Publications of the U.S. Army Engineer Waterways Experiment Station by : U.S. Army Engineer Waterways Experiment Station
Download or read book List of Publications of the U.S. Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1976 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Saturation on Dynamic Response of Footings in Sand by : Jack K. Poplin
Download or read book Effect of Saturation on Dynamic Response of Footings in Sand written by Jack K. Poplin and published by . This book was released on 1970 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This investigation was undertaken to determine the effect of saturation of dense sand on the response of square footings to nuclear blast-type loading. Tests were conducted with footings on the surface and at a depth of burial equal to the footing width with a water table coincident with the plane of the footing. The results of these tests were compared with data from similar tests on dry sand from a preceding study. Saturation of dense sand had the effect of reducing maximum displacement. The displacements of surface footings were only about 30 percent of the displacement of footings on dry sand with equivalent soil density and loading condition, and the displacement of shallow buried footings was reduced by 50 percent. Empirical load-displacement curves developed from previous studies on dry sand were shown to be conservative when used to predict the response of footings on saturated dense sand. The primary difference in response occurred after peak reaction. The footings on saturated dense sand came to rest immediately, while footings on dry sand continued to displace for some short distance. This behavior was attributed to the development of transient negative pore pressures resulting from dilation of the sand. A similar laboratory investigation on a medium-density sand is recommended in order to determine whether or not any tendency toward liquefaction may occur at the lower end of the range of densities of interest for protective structure foundations. (Author).
Book Synopsis The Response of Soils to Dynamic Loadings by : Robert V. Whitman
Download or read book The Response of Soils to Dynamic Loadings written by Robert V. Whitman and published by . This book was released on 1962 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Publications of the U.S. Army Engineers Waterway Experiment Station by : United States. Army. Corps of Engineers
Download or read book List of Publications of the U.S. Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and published by . This book was released on with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Publications of the U.S. Army Engineer Waterways Experiment Station by : Waterways Experiment Station (U.S.)
Download or read book List of Publications of the U.S. Army Engineer Waterways Experiment Station written by Waterways Experiment Station (U.S.) and published by . This book was released on 1973 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Model Study of Dynamically Loaded Square Footings on Dry Sand by : Jack K. Poplin
Download or read book A Model Study of Dynamically Loaded Square Footings on Dry Sand written by Jack K. Poplin and published by . This book was released on 1969 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation reported herein was undertaken to develop an approach to modeling displacements of surface and shallow-buried footings on dry sand subject to high-intensity, single-pulse loads. A hypothetical shallow-bured structure with an isolated footing loaded by airblast overpressure produced by detonation of a nuclear weapon was assumed for design of load pulses on nine model footings used: footing widths of 4.5, 6.0, and 7.5 in. and depth-of-burial to footing width ratios of 0, 0.5, and 1.0. The principles of similitude were used to scale length, force, and time in the models. The models were placed in mobile test bins of uniform, fine, dry sand (90 percent relative density) and subjected to dynamic and static loading. Nondimensional load-displacement relations dependent only on depth-of-burial ratio were developed relating maximum displacement to peak dynamic load, footing width, and soil shear strength gradient. When the dynamic response of the footings in the form of reaction-displacement curves was compared with static response, an increase in initial stiffness and ultimate strength was observed for dynamic loading. However, these dynamic increases were greatest when the static shear strength was lowest, i.e. footings on the surface, and were least for footings buried at a depth equal to its width where the static overburden produced a substantial increase in shear strength. (Author).
Book Synopsis A Study of the Propagation of Stress Waves in Sand by : Robert L. McNeill
Download or read book A Study of the Propagation of Stress Waves in Sand written by Robert L. McNeill and published by . This book was released on 1965 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Also shown: (1) reflections of stress from rigid boundaries can be estimated for non-linear materials; and (2) correlation between seismic velocity and triaxial strength exists, provided there is a power-function relationship between seismic velocity and ambient stress and the material follows Coulomb's law.
Book Synopsis The Response of Soils to Dynamic Loadings by : Frederick V. Lawrence
Download or read book The Response of Soils to Dynamic Loadings written by Frederick V. Lawrence and published by . This book was released on 1963 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dilatational waves of ultrasonic frequency are produced in a laboratory specimen of soil by energizing a barium titanate crystal, and the resultant waves picked up by a second crystal. The transit time of the wave front is observed by displaying input and output signals on an oscil loscope. Wave velocity as a function of confining pressure was measured for Ottawa sand and for glass beads. The velocity varied somewhat with specimen thickness, apparently because of dis persion of very high frequency portions of the wave front. The measured velocity varied approxi mately as the 1/4 to 1/5th power of the confining pressure, and agreed very closely with the values calculated from Brandt's equations. The measured velocities were reasonably consistent with the rod and shear wave velocities reported by Richart. (Author).
Book Synopsis Rheology and Soil Mechanics / Rhéologie et Mécanique des Sols by : Julien Kravtchenko
Download or read book Rheology and Soil Mechanics / Rhéologie et Mécanique des Sols written by Julien Kravtchenko and published by Springer. This book was released on 2013-12-01 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Landslide Dynamics: ISDR-ICL Landslide Interactive Teaching Tools by : Kyoji Sassa
Download or read book Landslide Dynamics: ISDR-ICL Landslide Interactive Teaching Tools written by Kyoji Sassa and published by Springer. This book was released on 2018-01-31 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interactive book presents comprehensive information on the fundamentals of landslide types and dynamics, while also providing a set of PPT, PDF, and text tools for education and capacity development. It is the second part of a two-volume work created as the core activity of the Sendai Partnerships, the International Consortium of Landslides. The book will be regularly updated and improved over the coming years, based on responses from users and lessons learned during its application.
Book Synopsis Geotechnics of Organic Soils and Peat by : Bujang B.K. Huat
Download or read book Geotechnics of Organic Soils and Peat written by Bujang B.K. Huat and published by CRC Press. This book was released on 2014-02-18 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peat and organic soils commonly occur as extremely soft, wet, unconsolidated surficial deposits that are an integral part of wetland systems. These types of soils can give rise to geotechnical problems in the area of sampling, settlement, stability, in situ testing, stabilisation and construction. There is therefore a tendency to either avoid building on these soils, or, when this is not possible, to simply remove or replace soils, which in some instances can lead to possibly uneconomical design and construction alternatives. However, in many countries of the world, these soils cover a substantial land area and pressure on land use is resulting in ever more frequent utilisation of such marginal grounds. For the successful design, construction and performance of structures on such marginal soils, it is crucial to predict geotechnical behaviour in terms of settlement, shear strength and stability, with respect to time. This means expanding our knowledge base and calls for a reliable characterisation of their geotechnical properties and mechanical behaviour and subsequently, the devising of suitable design parameters and construction techniques for dealing with these materials. A sound scientific understanding of the nature and functions of peat and organic soils is critical to their correct and safe use, and this book contributes by offering students, researchers, engineers and academics involved with these types of soils a comprehensive overview. This book will be useful not only to those in the field of geotechnical engineering, but also to soil scientists and agriculturalists, who are involved in the development of peatlands.
