Rock Mechanics in Hydroengineering

Rock Mechanics in Hydroengineering
Author: K. Thiel
Publisher: Elsevier
Total Pages: 421
Release: 2014-02-04
Genre: Science
ISBN: 0444596968

This book has been designed to provide a fundamental knowledge of the geological structure and properties of rocks and rock masses. It sets out laboratory and field methods for examining these media, presents physical and mechanical models used in their description, and reviews geotechnical classifications, discussing their use in solving various engineering tasks. Three basic problems of rock mechanics are discussed, namely, the distribution of stresses, the criteria and mechanisms of failure in rocks and rock masses, and the hydraulics of water flow in rock masses, together with effects associated with this flow. Attention is also paid to methods for solving basic engineering problems related to the behaviour of the bedrock on which various hydrostructures have been founded, are planned to be founded, or are in the process of being constructed.A prominent feature of the book is its methodical approach. It offers a sympathetic survey of the problems involved and enables the reader to select, according to the adopted criteria, an appropriate method for the solution of the engineering problem at hand by following the ready-to-use procedure included. In addition, numerous drawings, abundant tabulated data, and an extensive bibliography, permits the reader to gain a deeper knowledge of the problems under consideration.The book will be of interest to those concerned with hydrotechnical projects, lecturers and students in higher technical schools, and researchers investigating the problems of rock mechanics.

Rock Mechanics on a Geological Base

Rock Mechanics on a Geological Base
Author: R. Pusch
Publisher: Elsevier
Total Pages: 519
Release: 1995-04-07
Genre: Science
ISBN: 008054066X

Until a few years ago, hydropower, road tunneling and mining were the main fields interested in rock mechanics. Now, however, rock mechanics is becoming increasingly important in many more branches - the most significant globally being the disposal of hazardous, especially radiaoctive, waste in deeply located repositories. This has raised a number of new aspects on the mechanical behaviour of large rock masses hosting repositories and of smaller rock elements forming the nearfield of tunnels and boreholes with waste containers. The geological background and above all rock structure form the basis of this book. The structural scheme proposed is referred to explain the scale-dependent behaviour of rock. Thus, the reason for differences in strength and strain properties of different types and volumes of rocks is shown in a very clear fasion, using simple material models and very basic numerical models.The author's academic background in both geology and soil and rock mechanics and his long experience in practical design and construction work has led to an unusually pedagogic way of dealing with the subject. The book is intended for use by consultants in engineering geology and waste disposal and by students of these subjects. However, engineers and geologists with a limited background in stress/strain and fracture theory and computer-based calculation methods will also find the book attractive.

Coupled Thermo-Hydro-Mechanical Processes of Fractured Media

Coupled Thermo-Hydro-Mechanical Processes of Fractured Media
Author: O. Stephanson
Publisher: Elsevier
Total Pages: 597
Release: 1997-02-10
Genre: Science
ISBN: 0080542859

This work brings together the results, information and data that emerged from an international cooperative project, DECOVALEX, 1992-1995. This project was concerned with the mathematical and experimental studies of coupled thermo(T) -hydro(H) -mechanical(M) processes in fractured media related to radioactive waste disposal. The book presents, for the first time, the systematic formulation of mathematical models of the coupled T-H-M processes of fractured media, their validation against theoretical bench-mark tests, and experimental studies at both laboratory and field scales. It also presents, for the first time, a comprehensive analysis of continuum, and discrete approaches to the study of the problems of (as well as a complete description of), the computer codes applied to the studies. The first two chapters provide a conceptual introduction to the coupled T-H-M processes in fractured media and the DECOVALEX project. The next seven chapters give a state-of-the-art survey of the constitutive models of rock fractures and formulation of coupled T-H-M phenomena with continuum and discontinuum approaches, and associated numerical methods. A study on the three generic Bench-Mark Test problems and six Test Case problems of laboratory and field experiments are reported in chapters 10 to 18. Chapter 19 contains lessons learned during the project. The research contained in this book will be valuable for designers, practising engineers and national waste management officials who are concerned with planning, design and performance, and safety assessments of radioactive waste repositories. Researchers and postgraduate students working in this field will also find the book of particular relevance.

Rock and Soil Mechanics

Rock and Soil Mechanics
Author: W. Derski
Publisher: Elsevier
Total Pages: 739
Release: 2012-12-02
Genre: Technology & Engineering
ISBN: 0444596984

Although theoretical in character, this book provides a useful source of information for those dealing with practical problems relating to rock and soil mechanics - a discipline which, in the view of the authors, attempts to apply the theory of continuum to the mechanical investigation of rock and soil media. The book is in two separate parts. The first part, embodying the first three chapters, is devoted to a description of the media of interest. Chapter 1 introduces the main argument and discusses the essence of the discipline and its links with other branches of science which are concerned, on the one hand, with technical mechanics and, on the other, with the properties, origins, and formation of rock and soil strata under natural field conditions. Chapter 2 describes mechanical models of bodies useful for the purpose of the discourse and defines the concept of the limit shear resistance of soils and rocks. Chapter 3 gives the actual properties of soils and rocks determined from experiments in laboratories and in situ. Several tests used in geotechnical engineering are described and interconnections between the physical state of rocks and soils and their rheological parameters are considered.The second part of the book considers the applications of various theories which were either first developed for descriptive purposes in continuum mechanics and then adopted in soil and rock mechanics, or were specially developed for the latter discipline. Chapter 4 discusses the application of the theory of linear viscoelasticity in solving problems of stable behaviour of rocks and soils. Chapter 5 covers the use of the groundwater flow theory as applied to several problems connected with water movement in an undeformable soil or rock skeleton. Chapter 6 is a natural expansion of the arguments put forward in the previous chapter. Here the movement of water is regarded as the cause of deformation of the rock or soil skeleton and the consolidation theory developed on this basis is presented in a novel formulation. Some new engineering solutions are also reported. The seventh chapter is devoted to the limit state theory as applied to the study of the mechanical behaviour of soils and rocks. It presents some new solutions and methods which include both static and kinematic aspects of the problem, and some original effective methods for investigating media of limited cohesion. The final chapter gives a systematic account of the mechanics of highly dispersed soils, commonly called clays.

Fundamentals of Discrete Element Methods for Rock Engineering: Theory and Applications

Fundamentals of Discrete Element Methods for Rock Engineering: Theory and Applications
Author: Lanru Jing
Publisher: Elsevier
Total Pages: 563
Release: 2007-07-18
Genre: Science
ISBN: 0080551858

This book presents some fundamental concepts behind the basic theories and tools of discrete element methods (DEM), its historical development, and its wide scope of applications in geology, geophysics and rock engineering. Unlike almost all books available on the general subject of DEM, this book includes coverage of both explicit and implicit DEM approaches, namely the Distinct Element Methods and Discontinuous Deformation Analysis (DDA) for both rigid and deformable blocks and particle systems, and also the Discrete Fracture Network (DFN) approach for fluid flow and solute transport simulations. The latter is actually also a discrete approach of importance for rock mechanics and rock engineering. In addition, brief introductions to some alternative approaches are also provided, such as percolation theory and Cosserat micromechanics equivalence to particle systems, which often appear hand-in-hand with the DEM in the literature. Fundamentals of the particle mechanics approach using DEM for granular media is also presented.· Presents the fundamental concepts of the discrete models for fractured rocks, including constitutive models of rock fractures and rock masses for stress, deformation and fluid flow· Provides a comprehensive presentation on discrete element methods, including distinct elements, discontinuous deformation analysis, discrete fracture networks, particle mechanics and Cosserat representation of granular media· Features constitutive models of rock fractures and fracture system characterization methods detaiing their significant impacts on the performance and uncertainty of the DEM models

Waste Disposal in Rock

Waste Disposal in Rock
Author: R. Pusch
Publisher: Newnes
Total Pages: 511
Release: 2013-10-22
Genre: Technology & Engineering
ISBN: 044460037X

This is an overview of all the important issues involved in selecting suitable sites, design and construction methods for preparing repositories for hazardous waste in crystalline rock. Most of the examples used refer to radioactive waste - this is a reflection of the experience of the author in this field as well as his belief that the same techniques could be used for isolation of radioactive and other hazardous waste. The focus is on the preparation and performance of multibarrier sytems of rock, waste containers and sealing components in a long-term perspective. Examples are provided from large-scale field experiments conducted in the international Stripa Project (a project to develop and test techniques for isolating highly radioactive waste). This monograph should be of particular interest to environmental geologists, structural geologists and civil engineers.

Limit Analysis in Soil Mechanics

Limit Analysis in Soil Mechanics
Author: W.F. Chen
Publisher: Elsevier
Total Pages: 492
Release: 2012-12-02
Genre: Science
ISBN: 0444598359

During the last ten years, our understanding of the perfect plasticity and the associated flow rule assumption on which limit analysis is based has increased considerably. Many extensions and advances have been made in applications of limit analysis to the area of soil dynamics, in particular, to earthquake-induced slope failure and landslide problems and to earthquake-induced lateral earth pressures on rigid retaining structures. The purpose of the book therefore is in part to discuss the validity of the upper bound work (or energy) method of limit analysis in a form that can be appreciated by a practicing soil engineer, and in part to provide a compact and up-to-date summary of recent advances in the applications of limit analysis to earthquake-induced stability problems in soil mechanics.

Principles of Testing Soils, Rocks and Concrete

Principles of Testing Soils, Rocks and Concrete
Author: T.S. Nagaraj
Publisher: Elsevier
Total Pages: 725
Release: 1993-01-13
Genre: Technology & Engineering
ISBN: 0444599134

Soils, rocks and concrete are the principal materials a civil engineer encounters in practice. This book deals with the material analogies, their implications in property characterization, giving attention to similar as well as dissimilar methods in respect of each of these three materials. It provides an integrated, systematic approach for realistic assessment of engineering properties of soils, rocks and concrete. Geotechnical engineers, civil engineers and materials scientists will be interested in this volume.