Geomechanics and Geotechnics of Particulate Media

Geomechanics and Geotechnics of Particulate Media PDF

Author: Masayuki Hyodo

Publisher: CRC Press

Published: 2017-12-14

Total Pages: 538

ISBN-13: 1351377108

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Microscopic re-examination of geomaterials consisting of aggregates can shed light on macroscopic behaviour, including compressibility, anisotropy, yielding, creep, cyclic liquefaction and shear rupture. As a result of this process of examination, new methods of material characterization emerge, leading to a greater degree of accuracy in the specification of new constitutive models with physically-meaningful parameters. The impetus behind this development is an increasing awareness on sustainability, leading to the more efficient use of recycled materials for geotechnical applications. The characteristics of recycled materials, such as compressibility and self-hardening, may differ significantly from those of natural materials, and it is crucial that evaluation is made from a specifically particulate perspective.

Particulate Discrete Element Modelling

Particulate Discrete Element Modelling PDF

Author: Catherine O'Sullivan

Publisher: CRC Press

Published: 2011-04-06

Total Pages: 574

ISBN-13: 1482266490

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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

Soils and Waves

Soils and Waves PDF

Author: J. Carlos Santamarina

Publisher:

Published: 2001

Total Pages: 520

ISBN-13:

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J. Carlos Santamarina, Georgia Institute of Technology, USA in collaboration with Katherine A. Klein, University of Toronto, Canada; Moheb A. Fam, Cairo University, Egypt Soils are unique materials. Analogous to all other particulate materials, their properties depend on environmental parameters, such as confinement and fluid characteristics. While their behavior is complex, simple micromechanical analyses at the particle level provide unparalleled insight. Furthermore, elastic and electromagnetic waves can be effectively used to gain complementary information about the particulate medium, leading to unique possibilities for studies in engineering and science, including field applications for site assessment and process monitoring. This book is divided into five parts. The first part dwells on the problem of scale and includes a general introduction to materials. In the second part, the behavior of particulate materials is reviewed, with emphasis on the microscale interpretation of macroscale behavior. Fundamental differences between fine and coarse particulate materials are highlighted. The third and fourth parts center on the propagation of mechanical and electromagnetic waves in particulate materials, addressing phenomena such as stiffness, polarization and losses. These two units include laboratory techniques to measure the elastic and electromagnetic spectral response of particulate materials, and an extensive compilation of experimental data. Finally, the fifth part applies elastic and electromagnetic waves to monitoring process in soils. Emphasis is placed on clear, simple analyses and explanations of complex physical phenomena, making this book ideal for self-study. Furthermore, no other book provides such an in-depth description of soils and their behavior and the interaction of elastic and electromagnetic waves and particulate materials (including material data and experimental methods). Thus, this is an invaluable reference for postgraduates, research scientists and practitioners in geotechnical, civil and environmental engineering, as well as scientists in related areas such as physics, geophysics and materials science.

Geotechnical Fundamentals for Addressing New World Challenges

Geotechnical Fundamentals for Addressing New World Challenges PDF

Author: Ning Lu

Publisher: Springer

Published: 2019-05-24

Total Pages: 361

ISBN-13: 303006249X

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This single-volume thoroughly summarizes advances in the past several decades and emerging challenges in fundamental research in geotechnical engineering. These fundamental research frontiers are critically reviewed and described in details in lights of four grand challenges our society faces: climate adaptation, urban sustainability, energy and material resources, and global water resources. The specific areas critically reviewed, carefully examined, and envisioned are: sensing and measurement, soil properties and their physics roots, multiscale and multiphysics processes in soil, geochemical processes for resilient and sustainable geosystems, biological processes in geotechnics, unsaturated soil mechanics, coupled flow processes in soil, thermal processes in geotechnical engineering, and rock mechanics in the 21st century.

Geomechanics and Geotechnics

Geomechanics and Geotechnics PDF

Author: Mingjing Jiang

Publisher:

Published: 2011

Total Pages: 0

ISBN-13: 9780415612975

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Soils are composed of grains but they are generally treated as continua in the classical framework of geomechanics. Their macroscopic response under loading, such as their non-linearity, yielding and anisotropy, is controlled by their micro-structure, the characteristics of the grains and the disposition of contacts between them. There have been rapid advances in technology both to investigate the microscopic properties of soils, and to simulate their granular behaviour explicitly through Discrete Element Method (DEM). DEM was originally used to ...

Fundamentals of Soil Behavior

Fundamentals of Soil Behavior PDF

Author: James K. Mitchell

Publisher: John Wiley & Sons

Published: 2005-05-25

Total Pages: 606

ISBN-13:

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The improved, new edition of the classic book on the physical properties of soil Fundamentals of Soil Behavior, Third Edition is the thoroughly updated, expanded, and revised edition of this highly distinguished publication in geotechnical engineering. Filled with useful tables and graphs illustrating correlations among composition, classification, state, and static and dynamic properties, this Third Edition continues the tradition of providing the latest information on the physical properties of soil and the fundamentals of its behavior over time. Students and busy professionals will connect with this new edition's timesaving, streamlined format and its greater emphasis on practical exercise problems involving advanced concepts of soil behavior. Other must-read features of this Third Edition include: New, expanded material on micro-mechanical behavior at the particulate level and its influences on engineering properties at the macro-scale A new chapter on time effects on soil deformation at different stress and strain levels New coverage of such important topics as environmental geotechnics, biological influences on soil behavior, soil fracturing, the effects of time, and geochemical problems Sets of questions and problems at the end of each chapter, a feature not available in prior editions Fundamentals of Soil Behavior, Third Edition is an essential text for graduate students and researchers as well as a peerless reference for geotechnical, environmental, and civil engineers and geologists.

Geotechnical Modelling

Geotechnical Modelling PDF

Author: David Muir Wood

Publisher: CRC Press

Published: 2017-12-21

Total Pages: 504

ISBN-13: 1351990047

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Modelling forms an implicit part of all engineering design but many engineers engage in modelling without consciously considering the nature, validity and consequences of the supporting assumptions. Derived from courses given to postgraduate and final year undergraduate MEng students, this book presents some of the models that form a part of the typical undergraduate geotechnical curriculum and describes some of the aspects of soil behaviour which contribute to the challenge of geotechnical modelling. Assuming a familiarity with basic soil mechanics and traditional methods of geotechnical design, this book is a valuable tool for students of geotechnical and structural and civil engineering as well as also being useful to practising engineers involved in the specification of numerical or physical geotechnical modelling.

Recent Advances in Geotechnical Research

Recent Advances in Geotechnical Research PDF

Author: Wei Wu

Publisher: Springer

Published: 2018-06-01

Total Pages: 236

ISBN-13: 3319896717

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This book provides a snapshot of the research activities of the Institute of Geotechnical Engineering, University of Natural Resources and Life Sciences in Vienna, Austria. The topics are broad ranged including: · Centrifuge model testing · Constitutive model · Granular physics · Numerical simulation · Soil bioengineering The topics reflect our geotechnical research in a changing world. Traditional topics in foundation engineering are fading out and new topics are emerging. The European Commission is gratefully acknowledged for funding the following projects within its program FP7 and Horizon2020: MUMOLADE (Multiscale modelling of landslide and debris flow), REVENUES (Reinforced Vegetation Numerical Evaluation of Slopes) and GEORAMP (Geohazards - Risk Assessment, Mitigation and Prevention).