Discontinuous Deformation Analysis in Rock Mechanics Practice
Discontinuous Deformation Analysis in Rock Mechanics Practice

Author: Yossef H. Hatzor

Publisher: CRC Press

Published: 2017-07-20

Total Pages: 449

ISBN-13: 1317416929

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The numerical, discrete element, Discontinuous Deformation Analysis (DDA) method was developed by Dr. Gen-hua Shi while he was working at the University of California, Berkeley, under the supervision of Prof. Richard E. Goodman in the late 1980s. Two-dimensional DDA was published in 1993 and three-dimensional DDA in 2001. Since its publication DDA has been verified, validated and applied in numerous studies worldwide and is now considered a powerful and robust method to address both static and dynamic engineering problems in discontinuous rock masses. In this book Yossef H. Hatzor and Guowei Ma, co-chairs of the International Society for Rock Mechanics (ISRM) Commission on DDA, join Dr. Shi in authoring a monograph that presents the state of the art in DDA research. A comprehensive discussion of DDA development since its publication is provided in Chapter 1, followed by concise reviews of 2D and 3D DDA in chapters 2 and 3. Procedures to select geological and numerical input parameters for DDA are discussed in Chapter 4, and DDA validation and verification is presented in Chapter 5. Applications of DDA in underground and rock slope engineering projects are discussed in chapters 6 and 7. In Chapter 8 the novel contact theory recently developed by Dr. Shi is published in its complete form, for the first time. This book is published within the framework of the ISRM Book Series and is the contribution of the ISRM DDA Commission to the international rock mechanics community.

Development and Application of Discontinuous Modelling for Rock Engineering
Development and Application of Discontinuous Modelling for Rock Engineering

Author: Ming Lu

Publisher: CRC Press

Published: 2021-07-28

Total Pages: 272

ISBN-13: 1000443876

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The thirty papers published in this book represent the latest developments in Discontinuous Deformation Analysis (DDA). The Numerical Manifold Method (NMM) and other numerical methods and their applications are also covered, as are the theoretical contributions of 3D DDA, modelling and visualization of 3D joint systems, and high-order NMM. Applications of these advances include the stability of underground works, rock slopes and boreholes.

Discontinuity Analysis for Rock Engineering
Discontinuity Analysis for Rock Engineering

Author: S.D. Priest

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 490

ISBN-13: 9401114986

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Engineers wishing to build structures on or in rock use the discipline known as rock mechanics. This discipline emerged as a subject in its own right about thirty five years ago, and has developed rapidly ever since. However, rock mechanics is still based to a large extent on analytical techniques that were originally formulated for the mechanical design of structures made from man made materials. The single most important distinction between man-made materials and the natural material rock is that rock contains fractures, of many kinds on many scales; and because the fractures - of whatever kin- represent breaks in the mechanical continuum, they are collectively termed 'discontinuities' . An understanding of the mechanical influence of these discontinuities is essential to all rock engineers. Most of the world is made of rock, and most of the rock near the surface is fractured. The fractures dominate the rock mass geometry, deformation modulus, strength, failure behaviour, permeability, and even the local magnitudes and directions of the in situ stress field. Clearly, an understanding of the presence and mechanics of the discontinuities, both singly and in the rock mass context, is therefore of paramount importance to civil, mining and petroleum engineers. Bearing this in mind, it is surprising that until now there has been no book dedicated specifically to the subject of discontinuity analysis in rock engineering.

The Combined Finite-Discrete Element Method
The Combined Finite-Discrete Element Method

Author: Antonio A. Munjiza

Publisher: John Wiley & Sons

Published: 2004-04-21

Total Pages: 348

ISBN-13: 0470020172

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The combined finite discrete element method is a relatively new computational tool aimed at problems involving static and / or dynamic behaviour of systems involving a large number of solid deformable bodies. Such problems include fragmentation using explosives (e.g rock blasting), impacts, demolition (collapsing buildings), blast loads, digging and loading processes, and powder technology. The combined finite-discrete element method - a natural extension of both discrete and finite element methods - allows researchers to model problems involving the deformability of either one solid body, a large number of bodies, or a solid body which fragments (e.g. in rock blasting applications a more or less intact rock mass is transformed into a pile of solid rock fragments of different sizes, which interact with each other). The topic is gaining in importance, and is at the forefront of some of the current efforts in computational modeling of the failure of solids. * Accompanying source codes plus input and output files available on the Internet * Important applications such as mining engineering, rock blasting and petroleum engineering * Includes practical examples of applications areas Essential reading for postgraduates, researchers and software engineers working in mechanical engineering.

Rock Mechanics Based on an Anisotropic Jointed Rock Model (AJRM)
Rock Mechanics Based on an Anisotropic Jointed Rock Model (AJRM)

Author: Walter Wittke

Publisher: John Wiley & Sons

Published: 2014-04-07

Total Pages: 865

ISBN-13: 3433604290

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Dieses Buch konzentriert sich auf die Grundlagen der Felsmechanik als Basis für den sicheren und wirtschaftlichen Entwurf und Bau von Tunneln, Dämmen und Böschungen in geklüftetem und anisotropem Fels. Es ist in vier Hauptteile gegliedert: Grundlagen und Modelle Berechnungs- und Entwurfsmethoden Erkundungen, Versuche, Messung und Beobachtung Anwendungen und Fallbeispiele. Die felsmechanischen Modelle berücksichtigen den Einfluss von Trennflächen auf das Spannungs-Dehnungs-Verhalten und die Durchlässigkeit von geklüftetem Fels. Dieses Buch ist für: Bau- und Bergbauingenieure Geologen Studenten aus den entsprechenden Bereichen

Engineering Rock Mass Classification
Engineering Rock Mass Classification

Author: R K Goel

Publisher: Elsevier

Published: 2011-08-09

Total Pages: 382

ISBN-13: 0123858798

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Rock mass classification methods are commonly used at the preliminary design stages of a construction project when there is very little information. It forms the bases for design and estimation of the required amount and type of rock support and groundwater control measures. Encompassing nearly all aspects of rock mass classifications in detail, Civil Engineering Rock Mass Classification: Tunnelling, Foundations and Landsides provides construction engineers and managers with extensive practical knowledge which is time-tested in the projects in Himalaya and other parts of the world in complex geological conditions. Rock mass classification is an essential element of feasibility studies for any near surface construction project prior to any excavation or disturbances made to earth. Written by an author team with over 50 years of experience in some of the most difficult mining regions of the world, Civil Engineering Rock Mass Classification: Tunnelling, Foundations and Landsides provides construction engineers, construction managers and mining engineers with the tools and methods to gather geotechnical data, either from rock cuts, drifts or core, and process the information for subsequent analysis. The goal is to use effective mapping techniques to obtain data can be used as input for any of the established rock classification systems. The book covers all of the commonly used classification methods including: Barton's Q and Q' systems, Bieniawski's RMR, Laubscher's MRMR and Hoek's and GSI systems. With this book in hand, engineers will be able to gather geotechnical data, either from rock cuts, drifts or core, and process the information for subsequent analysis. Rich with international case studies and worked out equations, the focus of the book is on the practical gathering information for purposes of analysis and design. - Identify the most significant parameters influencing the behaviour of a rock mass - Divide a particular rock mass formulation into groups of similar behaviour, rock mass classes of varying quality - Provide a basis of understanding the characteristics of each rock mass class - Relate the experience of rock conditions at one site to the conditions and experience encountered at others - Derive quantitative data and guidelines for engineering design - Provide common basis for communication between engineers and geologists

Geologic Fracture Mechanics
Geologic Fracture Mechanics

Author: Richard A. Schultz

Publisher: Cambridge University Press

Published: 2019-08-08

Total Pages: 611

ISBN-13: 1107189993

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Introduction to geologic fracture mechanics covering geologic structural discontinuities from theoretical and field-based perspectives.

Harmonising Rock Engineering and the Environment
Harmonising Rock Engineering and the Environment

Author: Qihu Qian

Publisher: CRC Press

Published: 2011-09-14

Total Pages: 818

ISBN-13: 0203135253

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Harmonising Rock Mechanics and the Environment comprises the proceedings (invited and contributed papers) of the 12th ISRM International Congress on Rock Mechanics (Beijing, China, 18-21 October 2011). The contributions cover the entire scope of rock mechanics and rock engineering, with an emphasis on the critical role of both disciplines in sustai