Download or read book Compaction of Soils Granulates and Powders written by W. Fellin and published by CRC Press. This book was released on 2000-03-02 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interdisciplinary volume comprises papers from several fields related to compaction. Topics include: soil compaction for pavements and roads; deep soil compaction by vibration, impact and underground explosion; compaction control; and compaction processes in engineering.
Download or read book Compaction of Soils Granulates and Powders written by W. Fellin and published by CRC Press. This book was released on 2000-01-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This interdisciplinary volume comprises papers from several fields related to compaction. Topics include: soil compaction for pavements and roads; deep soil compaction by vibration, impact and underground explosion; compaction control; and compaction processes in engineering.
Download or read book Powder and Grains 2001 written by Y. Kishino and published by CRC Press. This book was released on 2020-12-17 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics discussed in this text range from quasi-static problems to dynamic problems, and are divided into 15 groups, such as: cohesion/cracking; wave propagation; and quasi-static behaviour. Each group contains theoretical, experimental and computational approaches by researchers.
Download or read book Dynamic Response of Granular and Porous Materials under Large and Catastrophic Deformations written by Kolumban Hutter and published by Springer Science & Business Media. This book was released on 2013-02-26 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: A "Sonderforschungsbereich" (SFB) is a programme of the "Deutsche For schungsgemeinschaft" to financially support a concentrated research effort of a number of scientists located principally at one University, Research La boratory or a number of these situated in close proximity to one another so that active interaction among individual scientists is easily possible. Such SFB are devoted to a topic, in our case "Deformation and Failure in Metallic and Granular M aterialK' , and financing is based on a peer reviewed proposal for three (now four) years with the intention of several prolongations after evaluation of intermediate progress and continuation reports. An SFB is terminated in general by a formal workshop, in which the state of the art of the achieved results is presented in oral or I and poster communications to which also guests are invited with whom the individual project investigators may have collaborated. Moreover, a research report in book form is produced in which a number of articles from these lectures are selected and collected, which present those research results that withstood a rigorous reviewing pro cess (with generally two or three referees). The theme deformation and failure of materials is presented here in two volumes of the Lecture Notes in Applied and Computational Mechanics by Springer Verlag, and the present volume is devoted to granular and porous continua. The complementary volume (Lecture Notes in Applied and Com putational Mechanics, vol. 10, Eds. K. HUTTER & H.
Download or read book Barodesy and its Application for Clay written by Gertraud Medicus and published by Logos Verlag Berlin GmbH. This book was released on 2015-08-28 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Barodesy is a constitutive model for granular materials. It is based on proportional strain and stress paths and the asymptotic behaviour of soil. In this work, an existing relation for proportional strain paths and proportional stress paths is further developed. A modification of barodesy to model clay behaviour is introduced. Common concepts of soil mechanics, such as critical states, barotropy and pyknotropy are comprised.
Download or read book Applications and developments of Barodesy written by Fabian Schranz and published by Logos Verlag Berlin GmbH. This book was released on 2019-04-01 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Barodesy is a constitutive model for granular materials such as sand and clay. It is based on the asymptotic behaviour of granular media at a constant deformation rate. In this work the existing sand version of Barodesy is improved. For this purpose, the underlying scalar equations are simplified using different concepts from soil mechanics. The improved version is also compared with laboratory tests and different elastoplastic and hypoplastic constitutive relations. Also the stability of slopes and advanced stress paths such as the rotation of the princple stresses are investigated with these models.
Download or read book Development of Soft Particle Code SPARC written by Chien-Hsun Chen and published by Logos Verlag Berlin GmbH. This book was released on 2015-08-31 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work aims at developing a numerical simulation method, Soft PARticle Code (SPARC). The term textit soft emphasizes that no boundaries between particles are defined and every particle possesses a support consisting of a set of adjacent particles. The polynomial interpolation/approximation method is utilized for the evaluation of spatial derivatives using the information carried by particles in supports. The system of equations consisting of spatial derivatives is solved using an iterative nonlinear solver and the computation of the Jacobian matrix is parallelized. The simulations of laboratory tests have been carried out to show the applications and limitations of the current version of SPARC. In addition to the simulations, laboratory (zig-zag) model tests using fine sand were carried out, in which the cyclic tilt of a retaining wall induces a peculiar motion in the backfill (sand), with closed trajectories (eddies).
Download or read book Ground Improvement by Deep Vibratory Methods written by Klaus Kirsch and published by CRC Press. This book was released on 2016-08-05 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibro compaction and vibro stone columns are the two dynamic methods of soil improvement most commonly used worldwide. These methods have been developed over almost eighty years and are now of unrivalled importance as modern foundation measures. Vibro compaction works on granular soils by densification, and vibro stone columns are used to displace and reinforce fine-grained and cohesive soils by introducing inert material. This second edition includes also a chapter on vibro concrete columns constructed with almost identical depth vibrators. These small diameter concrete piles are increasingly used as ground improvement methods for moderately loaded large spread foundations, although the original soil characteristics are only marginally improved. This practical guide for professional geotechnical engineers and graduate students systematically covers the theoretical basis and design principles behind the methods, the equipment used during their execution, and state of the art procedures for quality assurance and data acquisition. All the chapters are updated in line with recent developments and improvements in the methods and equipment. Fresh case studies from around the world illustrate the wide range of possible applications. The book concludes with variations to methods, evaluates the economic and environmental benefits of the methods, and gives contractual guidance. The Open Access version of this book, available at http://www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license
Download or read book Cyclic Behaviour of Soils and Liquefaction Phenomena written by Th. Triantafyllidis and published by CRC Press. This book was released on 2004-07-01 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference brought together specialists in cyclic soil behaviour in order to discuss important results and new ideas in the field, and to share expertise in design of various problems involving cyclic or dynamic behaviour of soils. This book covers a variety of topics: * Theory and analysis, including constitutive relations of soil under cyclic loading, post-seismic stability analysis of soil/structure, dynamic stability of structures, liquefaction analysis of marine structures due to cyclic loading, and more * Cyclic and dynamic laboratory and model testing, centrifuge testing and in-situ testing. * Numerical analysis, including computer methods * Design of industrial applications and marine structures, installation methods of piles, vibrocompaction, densification of ballast in railway structures, case studies of earthquakes and post-liquefaction observations.
Download or read book On the Face Stability of Shallow Tunnels in Sand written by Ansgar Kirsch and published by Logos Verlag Berlin GmbH. This book was released on 2009 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various models have been proposed for the prediction of the necessary support pressure at the face of a shallow tunnel. To assess their quality, the collapse of a tunnel face was modelled with small scale model tests at single gravity. The evolution of the failure mechanism and the development of the support force at the face in dry sand were investigated. The observed displacement patterns show a negligible influence of overburden on the extent and evolution of the failure zone. The latter is significantly influenced, though, by the initial density of the sand: in dense sand a chimney-wedge-type collapse mechanism developed, which propagated towards the soil surface. Initially loose sand did not show any development of a discrete collapse mechanism. The necessary support force was neither influenced by the overburden nor the initial density. A comparison with quantitative predictions by several theoretical models showed that the measured necessary support pressure is overestimated by most of the models. Only those by Vermeer/Ruse and Leca/Dormieux were able to predict the necessary support pressure on a 95 % confidence level. A three-dimensional finite element investigation of face stability served to assess the ability of two constitutive models, an elastoplastic Mohr-Coulomb and a hypoplastic model, to predict the necessary support pressure and the displacements at the tunnel face. The simulation of the small scale experiments revealed that the observed necessary support pressure and incremental displacements were predicted sufficiently well with both constitutive models.
Download or read book Geotechnical Engineering written by Jean-Louis Briaud and published by John Wiley & Sons. This book was released on 2013-10-02 with total page 1783 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a leader on the subject, Introduction to Geotechnical Engineering is first introductory geotechnical engineering textbook to cover both saturated and unsaturated soil mechanics. Destined to become the next leading text in the field, this book presents a new approach to teaching the subject, based on fundamentals of unsaturated soils, and extending the description of applications of soil mechanics to a wide variety of topics. This groundbreaking work features a number of topics typically left out of undergraduate geotechnical courses.
Download or read book NUMGE 2002 written by Philippe Mestat and published by Presses des Ponts. This book was released on 2002 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scaling and Disordered Systems written by Fereydoon Family and published by World Scientific. This book was released on 2002-05-30 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of the fractal and scaling properties of disordered systems has recently become a focus of great interest in research. Disordered or amorphous materials, like glasses, polymers, gels, colloids, ceramic superconductors and random alloys or magnets, do not have a homogeneous microscopic structure. The microscopic environment varies randomly from site to site in the system and this randomness adds to the complexity and the richness of the properties of these materials. A particularly challenging aspect of random systems is their dynamical behavior. Relaxation in disordered systems generally follows an unusual time-dependent trajectory. Applications of scaling and fractal concepts in disordered systems have become a broad area of interdisciplinary research, involving studies of the physics, chemistry, mathematics, biology and engineering aspects of random systems. This book is intended for specialists as well as graduate and postdoctoral students working in condensed-matter or statistical physics. It provides state-of-the-art information on the latest developments in this important and timely topic. The book is divided into three parts: Part I deals with critical phenomena, Part II is devoted to discussion of slow dynamics and Part III involves the application of scaling concepts to random systems. The effects of disorder at the mesoscopic scale as well as the latest results on the dynamical properties of disordered systems are presented. In particular, recent developments in static and dynamic scaling theories and applications of fractal concepts to disordered systems are discussed. Contents:Fractal Dimensions and Corrections to Scaling for Critical Potts Clusters (A Aharony & J Asikainen)Scaling and Finite-Size Effects for the Critical Backbone (M Barthelem et al.)Percolation and Critical Phenomena of an Attractive Micellar System (F Mallamace et al.)Critical Fluctuations in the Breakdown of Disordered Systems (A Petri)Compaction of Granular Matter: A Short Review, and the Random Tetris Model (A Barrat & V Loreto)Why Conductivity Decreases with Pressure in Ion-Doped Polymers (J T Bendler et al.)Lack of Equilibration in a Model for Continuously Supercooled Liquids (F Corberi & A Coniglio)Vortex Matter out of Equilibrium (M Nicodemi)Scaling in the Atmosphere: On Global Laws of Persistence and Tests of Climate Models (A Bunde & S Havlin)Nonlinear Relaxation in Population Dynamics (M A Cirone et al.)Scaling in Cosmic Structures (L Pietronero et al.)Effect of Damage on the Roughness of Planar Cracks: The Case of the Random Fuse Model (S Zapperi et al.)and other papers Readership: Specialists as well as graduate and postdoctoral students in condensed-matter and statistical physics. Keywords:Disordered Systems;Critical Phenomena;Slow Dynamics;Scaling Concepts;Dynamical Properties;Fractal Concepts;Condensed Matter Physics;Statistical Physics;Fractals;Renormalization Group;Phase Transitions;Growth Phenomena;Scaling Phenomena;Collective Behavior;Materials Physics;Dynamical Phenomena
Download or read book Particulate Discrete Element Modelling written by Catherine O'Sullivan and published by CRC Press. This book was released on 2011-04-06 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first single work on DEM providing the information to get started with this powerful numerical modelling approach. Provides the basic details of the numerical method and the approaches used to interpret the results of DEM simulations. It will be of use to professionals, researchers and higher level students, with a theoretical overview of DEM as well as practical guidance.Selected Contents: 1.Introduction 2.Use of DEM in Geomechanics 3.Calculation of Contact Forces 4.Particle Motion 5.Particle Types 6.Boundary Conditions 7.Initial Geometry and Specimen Generation 8.Time Integration and Discrete Element Modelling 9.DEM Interpretation: A Continuum Perspective 10.Postprocessing: Graphical Interpretation of DEM Simulations 11.Basic Statisti
Download or read book Geotechnical Engineering Handbook Procedures written by Ulrich Smoltczyk and published by John Wiley & Sons. This book was released on 2003-03-14 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 2 of the Handbook covers the geotechnical procedures used in manufacturing anchors and piles as well as for improving or underpinning foundations, securing existing constructions, controlling ground water, excavating rocks and earth works. It also treats such specialist areas as the use of geotextiles and seeding.
Download or read book Bearing Capacity Of Roads Volume 2 written by A. Gomes Correia and published by CRC Press. This book was released on 2020-12-18 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the sixth conference on bearing capacity of roads and airfield held in Lisbon, Portugal. It covers the following topics: bearing capacity policies, concepts, costs and condition surveys; analysis and modelling; design and environmental effects; and asphalt mixtures.
Download or read book Ground Improvement Second Edition written by Michael P. Moseley and published by CRC Press. This book was released on 2004-02-03 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing need to redevelop land in urban areas has led to major development in the field of ground improvement, a process that is continuing and expanding. Vibratory deep compaction and grouting techniques have also been increasingly applied to solving the problems of urban development, whether from tunnelling, excavation, building renovation or bearing capacity improvement and settlement reduction. The second edition of this well established book continues to provide an international overview of the major techniques in use. Comprehensively updated in line with recent developments, each chapter is written by an acknowledged expert in the field. Ground Improvements is written for geotechnical and civil engineers, and for contractors working in grouting, ground improvement, piling and environmental engineering.
