کتاب مهندسی شیب سنگ Rock Slope Engineering-HOEK_BRAY–4th edition
کتاب مهندسی شیب سنگ Rock Slope Engineering-HOEK_BRAY–4th edition
این کتاب در سال 2004 به قلم Duncan C. Wyllir و Christopher W. Mah نوشته شد و توسط انتشارات Spon Press منتشر گردید و از منابع ارزشمند برای مهندسین معدن و عمران به شمار میرود. این کتاب هماکنون در طوقی در دسترس است. موارد جدید موجود در این کتاب شامل آخرین تحولات در مهندسی زلزله مربوط به پایداری شیب، تجزیه و تحلیل احتمالاتی، تجزیه و تحلیل عددی، انفجار، نظارت بر حرکت شیب و روش پایدارسازی می باشد.
Readers will undoubtedly recognize the similarity of this book to Rock Slope Engineering by Dr Evert Hoek and Dr John Bray. We hope the following discussion of the origin and evolution of the current book will help to demonstrate the relationship between the two.
Rock Slope Engineering was published in three editions (1974, 1977 and 1981) by the Institute of Mining and Metallurgy in London. The original research for the book at the University of London was sponsored by the mining industry in response to a need to develop design methods for increasingly deep open pits.
The 1960s and 1970s had seen the development of a new generation of high production drills, shovels and trucks that made low grade ore deposits economical to mine, and there was a consequent significant increase in the size of open pits.
The investigation and design techniques originally developed in Rock Slope Engineering for mines were soon adopted in civil engineering
where the slopes’ heights are usually less than those in open pits, but there is a need for a high level of reliability in terms of both rock falls and overall stability.
In response to the demand for a book that clearly presents well-proven methods to design rock slopes, Hoek and Bray’s book has continued to sell steadily around the world, and has been translated into a number of languages.
In 1980, one of the authors of this book (DCW) was awarded a contract by the Federal Highway Administration (FHWA) in Washington to prepare a manual on rock slope design and construction specifically applicable to highways. At that time, I was working with Dr Hoek and he generously agreed that his manuscript of Rock Slope Engineering could be adapted for this purpose. The manual closely followed the original book, apart from chapters on slope stabilization and movement monitoring.
A second FHWA contract was awarded in 1996 as part of an eleven module series on highway geotechnical engineering, and this opportunity was taken to embark on a major updating of the manual. The manuals have been used primarily as teaching material for a series of courses sponsored by the National Highway Institute for highway engineers in the United States; to date over 40 courses have been presented.
It was realized that a limitation of the FHWA manuals was their focus on highway engineering, and that their availability was generally limited to course participants. Therefore, in 2001 it was decided that it would be worthwhile to produce another update that would cover the wider field of rock slope engineering, including civil and mining applications. In order to take this step, it was necessary to obtain the permission and co-operation of a number of organizations and individuals—Mr Jerry DiMaggio of the Federal Highway Administration, Dr G. P. Jayaprakash of the Transportation
Research Board, both in Washington, and Dr George Munfakh of Parsons Brinckerhoff Quade and Douglas (PBQD) in New York. We are most grateful for their assistance and encouragement.
Of course, the most important participant in this work has been Dr Evert Hoek who generously agreed that we could use Rock Slope Engineering as the basis for the new work. Since Dr Hoek lives in the same neighborhood, it has been possible to have a series of meetings to discuss both the overall approach and details of the contents and methods. We express our gratitude for the valuable assistance that we have received from Dr Hoek over the two years, as well as his pioneering work with Dr Bray in establishing the fundamental procedures for rock slope engineering.
Dr Lorin Lorig and Mr Pedro Varona of Itasca Corporation and Mr Alan Stewart and his colleagues at Piteau Associates Engineering have also made important contributions. Dr Lorig and Mr Varonawrote Chapter 10 on numerical analysis methods, and the personnel from Piteau wrote Chapter 15 on case studies on open pit mining. We decided these two chapters were best written by persons working in these specialist fields, and we appreciate their hard work and dedication.
One of our objectives in writing this book has been to maintain much of the original content of Rock Slope Engineering, because the basic slope design methods that were developed for the 1974 edition are still valid to this day. Our approach has been to incorporate, within the original framework, technical advances and experience in rock slope design and construction projects over the past 30 years. This has allowed us to maintain the structure of Rock Slope Engineering so that those who are familiar with Hoek and Bray can readily find their way around this book. In addition to generally updating the book, the following is a list of the major topics that have been added:
• Geological data collection—The International Society of Rock Mechanics nomenclature for structural geology is included in Chapter 3 and Appendix II.
• Rock mass strength—The 2002 version of the Hoek–Brown rock mass strength criterion is included in Chapter 4.
• Earthquakes—The effects of earthquakes on slope stability and design methods for slopes in seismic areas are described in Chapter 6.
• Probabilistic, and Load and Resistance Factor design methods—The basic principles of probabilistic and LRFD design are discussed in Chapter 1; an example of probabilistic design is included in Chapter 6.
• Numerical analysis—Chapter 10 is a new chapter describing the use of numerical analysis methods in slope design.
• Production blasting—Updated methods of designing production blasts have been added to Chapter 11, which covers in addition, blasting methods for final walls and control of damage outside the blast area.
• Slope stabilization and rock fall protection—Chapter 12 is a new chapter describing rock slope hazard assessment, slope reinforcement and rock fall protection such as ditches, fences and sheds.
• Slope movement monitoring—Surface and sub-surface movement monitoring methods, and data interpretation are described in Chapter 13.
• Case studies in civil engineering—Case studies of plane, wedge, circular and toppling failures are described in Chapter 14.
• Case studies in open pit mining—Four case studies demonstrating pit slope design in a variety of geologic environments are described in Chapter 15.