in situ rock stress international symposium on in situ rock stress trondheim norway19 21 june 2006 balkema proceedings and monographs in engineering water and earth sciences

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In Situ Rock Stress

Author : Ming Lu
ISBN : 9781439833650
Genre : Technology & Engineering
File Size : 51. 42 MB
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Understanding the stress state in the earth’s crust is crucial for engineers working in rock, particularly with regard to underground construction. Experience shows that an adequately high horizontal in-situ stress has a positive effect in stabilizing large span rock caverns close to the ground surface. On the other hand, high stresses resulting from large overburden, for example, may cause spalling and rock burst, threatening the integrity of the construction. The location, orientation and support design of underground structures takes into account the magnitude and orientation of in-situ rock stresses, considering such factors as gravity, topography, tectonics, residual stress, pore pressure change and geological structures. An accurate knowledge of in-situ rock stress can only be obtained by physical measurement, and over the last few years there has been substantial development in techniques and in interpretation of the results. The papers in this volume will be of particular interest to those working in tunnelling and mining and in petroleum exploration and production.

Clean Coal Technologies For Power Generation

Author : P. Jayarama Reddy
ISBN : 9781138000209
Genre : Science
File Size : 35. 64 MB
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This book discusses clean coal technology (CCT), the latest generation of coal technology that controls pollutants and performs with improved generating efficiency. CCT involves processes that effectively control emissions and result in highly efficient combustion without significantly contributing to global warming. Basic principles, operational aspects, current status, on-going developments and future directions are covered. The recent concept of viewing carbon dioxide as a commodity, and implementing CCUS (carbon capture, utilization and storage) instead of CCS for deriving several benefits is also discussed, as is the implementation of CCT in countries with large coal reserves and that utilize large quantities of coal for their energy supply. These countries are also the foremost CO2 emitters globally and their energy policies are crucial to international efforts to combat global warming. This work will be beneficial for students and professionals in the fields of fuel, mechanical, chemical and environmental engineering and Clean Tech. Includes foreword by Professor Yiannis Levendis, College of Engineering Distinguished Professor, Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, USA.

Introduction To Rock Mechanics

Author : Richard E. Goodman
ISBN : 0471617180
Genre : Electronic books
File Size : 79. 25 MB
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This book introduces a new approach to rock mechanics called block theory, which formalizes procedures for selecting proper shapes and orientations for excavations in hard jointed rock. The text applies block theory to rock slopes and underground excavations, and covers the Q theory of rock classification, the empirical criterion of joint shear strength, rock bolting, properties of weak rocks, statistical frequency of jointing, an empirical criterion of rock strength, and design of underground supports. This edition contains many new problems with worked-out solutions.

Rock Engineering Design

Author : Xia-Ting Feng
ISBN : 9780203093375
Genre : Technology & Engineering
File Size : 80. 55 MB
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Given the recent advances in site investigation techniques, computing, access to information and monitoring, plus the current emphasis on safety, accountability and sustainability, this book introduces an up-to-date methodology for the design of all types of rock engineering projects, whether surface or underground. Guidance is provided on the nature of the modeling to support design and the information required for design; also included is a procedure for technical auditing of the modeling and design together with the related protocol sheets. Written by two eminent authors, clearly structured and containing many illustrations, this volume is intended for consulting engineers, contractors, researchers, lecturers and students working on rock engineering projects.

Seismicity In Mines

Author : G. Gibowicz
ISBN : 9783034892704
Genre : Science
File Size : 31. 26 MB
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Recent seismological research has focused on processes other than pure shear failure (double-couple) as an alternative mechanism for some types of seismic events. This has been stimulated by what appears to be anomalous focal mecha nisms observed for several earthquakes of possible volcanic nature in the 1980 Mammoth Lakes, California sequence (JULIAN and SIPKIN, 1985; SIPKIN, 1986). Although studies have concentrated on earthquakes associated with magmatic processes, possible non-double-couple seismic failure has been observed, but not widely known, in cases of mine seismicity in the past three decades. Such cases have occurred on a world-wide basis; however, no cases until now have been observed in the United States. The existence of non-double-couple failure in mine seismicity has been controversial as it has been for tectonic/volcanic earthquakes. Several of the benchmark studies of mine seismicity in the deep South African gold mines have resulted in the belief that no fundamental distinction in the source mechanism exists between tectonic earthquakes and rock bursts (MCGARR, 1984); both types of events are the result of pure shear failure. However, the reported cases of implo sional focal mechanisms for mine seismicity continue to increase in number and prolong the controversy. During the summer of 1984, a three-dimensional, high resolution micro earthquake network was operated by Woodward-Clyde Consultants (WCC) in the vicinity of two coal mines beneath Gentry Mountain in the eastern Wasatch Plateau of central Utah.

Geotechnical Risk In Rock Tunnels

Author : António Campos e Matos
ISBN : 020396358X
Genre : Technology & Engineering
File Size : 25. 66 MB
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Tunnels have a high degree of risk that needs to be assessed and managed. Underground works intersect and interact with natural materials, incorporating their characteristics as structural components of their own stability. For this reason geotechnical risk analyses are implemented at all phases of tunnel construction, from design through to post-construction maintenance. Analysis of geotechnical risk involves a group of studies which lead to the identification and evaluation of the potential probability of error and the consequences of its occurrence. This volume considers construction and safety, financing and control, and exploration and maintenance. Eminent specialists discuss risk assessment and management, based both on advanced theoretical concepts and on practical experience. The book is of interest to a wide range of professionals involved in planning, construction and management of tunnels: entrepreneurs, designers, consultants and contractors.

Mcgraw Hill S Engineering Companion

Author : Ejup Ganic
ISBN : 0071378367
Genre : Technology & Engineering
File Size : 38. 21 MB
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This single reference of reliable, ready-to-apply solutions to hundreds of engineering problems covers all major engineering fields and contains tons of tables, formulas, diagrams, figures and worked-out problems.

Cities Of The Future

Author : Vladimir Novotny
ISBN : 9781843391364
Genre : Science
File Size : 66. 45 MB
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This book is developed from and includes the presentations of leading international experts and scholars in the 12-14 July, 2006 Wingspread Workshop. With urban waters as a focal point, this book will explore the links between urban water quality and hydrology, and the broader concepts of green cities and smart growth. It also addresses legal and social barriers to urban ecological sustainability and proposes practical ways to overcome those barriers. Cities of the Future features chapters containing visionary concepts on how to ensure that cities and their water resources become ecologically sustainable and are able to provide clean water for all beneficial uses. The book links North American and Worldwide experience and approaches. The book is primarily a professional reference aimed at a wide interdisciplinary audience, including universities, consultants, environmental advocacy groups and legal environmental professionals.

Water

Author : Unesco
ISBN : 9789231040061
Genre : Science
File Size : 68. 18 MB
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This illustrated report sets out a global review of the state of the world's freshwater resources, based on the collective work of 24 United Nations agencies, following on from the conclusions of the first UN World Water Development Report 'Water for People, Water for Life' published in 2003 (ISBN 9231038818). This second edition discusses progress towards the water-related targets of the UN Millennium Development Goals and examines a range of key issues including population growth and increasing urbanisation, changing ecosystems, food production, health, industry and energy, as well as risk management, valuing and paying for water and increasing knowledge and capacity. It contains 16 case studies which consider key challenges in water resource management and makes a number of recommendations to guide future action and encourage sustainable use, productivity and management of our increasingly scarce freshwater resources.

Rock Mechanics For Resources Energy And Environment

Author : Marek Kwasniewski
ISBN : 9781482229073
Genre : Technology & Engineering
File Size : 50. 72 MB
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This book contains the Proceedings of EUROCK 2013 – The 2013 ISRM International Symposium, which was held on 23-26 September 2013 in Wrocław, Poland. The Symposium was organized by the ISRM National Group POLAND and the Institute of Geotechnics and Hydrotechnics of the Wrocław Institute of Technology. The focus of the Symposium was on recent developments in the field of rock mechanics with an emphasis on the application of rock mechanics to the extraction of natural resources, securing energy supplies and protecting of the environment surrounding rock that is subjected to engineering activities. The main topics, which were covered in the 150 papers (including six keynote papers) that make up this book are: rock mass characterization, laboratory and in-situ testing, constitutive models and numerical modeling, mathematical modeling of THM processes in rocks, mine design and ground control, underground storage and waste disposal, slope and open pit stability, dynamic phenomena in rock masses, design methodology in rock engineering, mechanical breakage of rocks, rock tunnel excavation and support, petroleum rock mechanics and geological CO2 sequestration. The book also includes the 2013 ISRM Franklin Lecture by A. Goricki on the engineering aspects of geotechnical tunnel design. The book will be of interest and value to rock mechanics researchers as well as to professionals who are involved in the various branches of rock engineering.

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