This article reminds the principles of slope design in open pit mines, and presents techniques and tools available to address the successive stages of slope design. Guidelines for open pit slope design in weak rocks martin, derek, stacey, peter on. Mar 23, 2014 guidelines for open pit slope design is a comprehensive account of the open pit slope design process. Open pit slope depressurization using horizontal drains a. This will enable the delegates to conveniently access the latest in best practice, with respect to pit slope investigations, design, implementation and performance. Pdf slope design and implementation in open pit mines. The research project is aimed at increasing the knowledge regarding large scale slope stability and to develop a design methodology for large scale open pit slopes, with special application to the aitik mine in. Guidelines for open pit slope design in weak rocks newsouth. Guidelines for open pit slope design in weak rocks is a companion to guidelines for open pit slope design, which was published in 2009 and dealt primarily with strong rocks. Guidelines for open pit slope design is a comprehensive account of the open pit slope design process. The slope design has the main objective to enable a safe and economic design for benches, ramps, interramps, pit walls, and the overall slope scale. Comprehensive design charts for the footing on slope problem. The slope ability process involves slope stability analysis for intact rock, rock masses, and also waste or spoiled material. Stability and movements of openpit lignite mines in.
Key laboratory of high efficient mining and safety of metal mine ministry of education, university of science and technology beijing, 83,beijing china. The analysis provided clients with an analysis of increased rigor and allowed a rationale for design of open pit slopes. In addition to the studies conducted for the smooth foundation case, used for creating the design charts, analysis into the case of a rough soilfooting interface was conducted. Geological and geomechanical approach article pdf available in procedia engineering 46. Guidelines and considerations for open pit design deswik. I m always looking for deals and working the angles. The inclination of any pit wall composed of stacks of benches is limited by the overall quality and structural complexity of the rock mass in which the slope is situated. Its at this phase that the open slope designs comes in. In addition, the work can be used as a practical reference by professionals. Guidelines for open pit slope design in weak rocks is a companion to guidelines for open pit slope design 2009, which dealt primarily with strong rocks. Fundamentals of slope design 2 fundamentals of slope design e. The purpose of this paper to discuss some of this research and to present potential new technologies for slope monitoring and design.
Rajo sur a challenging project, and a clear example of openpit mining in difficult ground conditions. Csiro publishing guidelines for open pit slope design series. It provides guidance to practitioners involved in the design and implementation of open pit slopes, particularly geotechnical engineers, mining engineers, geologists, and other personnel. Fundamentals of slope design keynote address at slope. Pdf guidelines for open pit slope design download full. Created as an outcome of the large open pit lop project, an international research and technology transfer project on the stability of rock slopes in open pit mines, this book provides an uptodate compendium of knowledge of the slope design processes that should be. Mine water risk in open pit slope stability springerlink. The paper also briefly discusses various warning signs of slope instability, introduces the most common slope monitoring methods, describes the. This course presents an overview of the process for the design and management of slopes in open pit mines. All covid19 related research articles, book chapters and information is free to access and available for anyone to read. A technique for assessing ultimate openpit mine limits in. These examples increase the value of the design charts to practicing engineers greatly. Jeff price has over 26 years experience in consulting engineering and research for civil and mining projects.
Guidelines for open pit slope design pdf guidelines for open pit slope design is an outcome of the large open pit lop project, an international research and guidelines for open pit slope design gbv. Slope stability 2020 2020 international symposium on slope. Pdf assessment of the influence of the slope stability. Davide elmo, department of earth sciences, simon fraser university, burnaby, b. Pit design overall slope of a pit depends on several factors of the pit slope. Design of stable slope for opencast mines a thesis submitted in partial fulfillment of the requirements for the degree of bachelor of technology in mining engineering by bisleshana brahma prakash under the guidance of dr. Open pit geotechnics slope stability, mine design, domain. Guidelines for open pit slope design in weak rocks. It provides guidance and essential information for mining and civil engineers, geotechnical engineers, engineering geologists and hydrogeologists. Analyses of a deep wall in an open pit mine in the peruvian andes are used to compare limit equilibrium methods slide with distinct element methods udec when the stability is controlled by rock mass strength. Attention has been drawn to the need to understand the failure mechanisms of slopes on this site and the need to determine acceptable risk of mining at the designed pit slopes.
Ming yan, department of earth sciences, simon fraser university, burnaby, b. Stability analysis and design of openpit mine slope in china. The maximum height of pit walls is currently about 150 meters with the current mine plan extending this distance to 400 meters. Open pit slope design and implementation canadian mining. Slope configurations at sandsloot open pit have evolved as more geotechnical data have become available and variations in slope design have been applied to accommodate kinematic failure mechanisms. Offer pdf guidelines for open pit slope design john. Guidelines for open pit slope design series the books in the guidelines for open pit slope design series were created as an outcome of the large open pit mine slope stability project, an international research and technology transfer project on rock slope stability in open pit mines. For a bench stack angle that satisfies the stability criteria, various combinations of bench height, bench face angle and berm width can be used in the slope design. Stability analysis and design of open pit mine slope in. For these materials, the mass strength can be the primary control in the design of the pit slopes, although structures can also play an important role. Geotechnical considerations open pit audit guide page 2 of 28 introduction this document was reformatted in november 2015.
Guidelines for open pit slope design civil engineering. Photograph of pit area involved with slope failure. Open pit design as with many large, relatively low grade mineral deposits the economic returns are potentially great, but relatively minor adjustments in specific variables e. Monitoring methods for pit slopes and other management procedures will be discussed. The failure as shown in figure 1, involved three benches at an intermediate slope that was being pushed back towards the final high wall location. Guidelines for open pit slope design mining engineers world. Created as an outcome of the large open pit lop project, an international research and technology transfer project on the stability of rock slopes in open pit mines, this book provides an uptodate compendium of knowledge of the slope design processes that should be followed and the.
The book, which is entitled guidelines for open pit slope design 1. National technical university of athens, greece agioutantis z. Pdf on jun 15, 2014, sina amoushahi and others published assessment of the influence of the slope stability conditions of an inactive open pit mine on the design of a nearby highway find, read. Guidelines for open pit slope design read, john, stacey, peter on amazon. Implications for open pit slope design doug stead, department of earth sciences, simon fraser university, burnaby, bc. The management of the slopes in an open pit mine depends, amongst other things, upon the assessment of the stability of these slopes. Guidelines for evaluating water in pit slope stability offers slope design practitioners with a road map that that will help them decide how to investigate and treat water pressures in pit slopes. Their practical implementation is then illustrated by two case studies of open pit mines. Blasting design and implementation, including casting spoil design loadout design equipment design and selection long wall, continuous haulage, and continuous miners firefighting systems reclamation design cut short and longterm pit excavation designs volume balancing pit slope stability. Created as an outcome of the large open pit project, this book provides an upto date compendium of knowledge of the slope design processes that should be. A technique for assessing ultimate openpit mine limits in a changing economic environment. Stability assessment and slope design at sandsloot open.
University of technology concerning large scale slope stability in open pit mining. Pdf on jun 15, 2014, sina amoushahi and others published assessment of the influence of the slope stability conditions of an inactive openpit mine on the design of a nearby highway find, read. Improved pit slope walls as a result of a detailed geotechnical study completed by genivar and a new mine design developed by roscoe postle associates in 20 resulted in a 7 per cent decrease in total waste by 114,000 tonnes, thus reducing the stripping ratio from 8. Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. Guidelines for open pit slope design semantic scholar. Guidelines for evaluating water in pit slope stability. Analysis of a slope failure in an open pit mine using. His expertise includes feasibility design for open pit mines and infrastructure, tailings scoping and prefeasibility studies, and numerical modelling for slope depressurisation and open pit and underground stability for projects in australasia, eurasia south america and africa. As such, they can provide a significant challenge for the slope designer. Open pit mine planning and design is an excellent textbook for courses in surface mine design, open pit design, geological and excavation engineering, and in advanced open pit mine planning and design. Guidelines for open pit slope design 1st edition john. Both books were commissioned under the large open pit lop project, which is sponsored by major mining companies. Starting with a description of the information required to support a slope design and the methods of data collection, it progresses to the design procedures for bench configurations, interramp slopes and overall slopes, including the analytical procedures commonly in use. Guidelines for open pit slope design by read, john ebook.
In indian mining conditions, slope design guidelines were not yet formulated for different. Guidelines for open pit slope design download free pdf. The research project is aimed at increasing the knowledge regarding large scale slope stability and to develop a design methodology for large scale open pit slopes, with special application to the aitik mine in northern sweden. Kinematic and limit equilibrium analysis are looked at in. Created as an outcome of the large open pit lop project, an international research and technology transfer project on rock slope stability in open pit mines, this book provides an uptodate compendium of knowledge of the slope design processes that should be followed and the tools that are. Pit slope optimisation at jwaneng diamond mine, botswana news.
If you dont already have adobes pdf reader, you can download it free. Outstanding textbook designed for courses in surface mine design, open pit design, geological excavation engineering and in advanced open pit mine pla. Zhiqiang yang 1, 2, qian gao 1, maohui li 1, guangcun zhang 1 1. Get your kindle here, or download a free kindle reading app. In 1996 a slope failure occurred at the round hill open pit mine, operated by macraes mining company ltd. The slope ability process involves slope stability analysis for. Open pit slope stability and ground support seminar metalliferous and coal mining. Open pit mine planning and design, third edition mining. Design the slope to a fos or pof criterion commonly used by geotechnical engineers provide the resulting slope angles to the mine planners for their design and economic calculations apply monitoring procedures to a risk consequence approach to open pit slope design by p. Open pit slope stability and ground support seminar.
The publisher has supplied this book in encrypted form, which means that you need to install free. Open pit slope depressurization using horizontal drains. Participants will be encouraged to present a short max 30 min. Canmet pit slope manual canmet pit slope manual on computers running microsoft windows with flash player 11.
Felix baumgartner world record supersonic skydive, complete footage, unaltered capture, hd duration. At this time no material changes were made to the content of the guide, which was originally published in september 2009 under the title guide to open pit geotechnical considerations hif audit 2009. Analysis of a slope failure in an open pit mine using tslope. Guidelines for open pit slope design john read, peter. Open pit slope design rock mechanics and engineering volume 3. Jul 26, 2016 the aspects of risk associated with pit slope design and excavation will be presented. Stability analysis and design of open pit mine slope in china. The large number of illustrative examples and case studies, together with the exercises and the reference lists at the end pdf of each chapter, provide the student with all the material needed to study effectively the theory and application methods of open pit mine planning and design. Reactivation of research into factors affecting the design and stability of large rock slopes. Srk examines slope stability of jwaneng open pit diamond mine for expansion. For the open pit slope, we created a 3d slope case using the composite topographic surface, and the composite failure surface as discussed in section 4. The focus of mine executives on safety has undoubtedly in part facilitated the recent long overdue revitalization of research into the design and stability of large pit slopes, the requirement for which has been recognized for many years by practitioners.
Tslope allows the user to set up a number of slope cases based on the slope model and material parameters density, shear strength. Offer pdf guidelines for open pit slope design john read. Optimum design of open pit mines article pdf available. Water pressure due to groundwater presence has a great influence on the open pit slope stability and for that reason the risk of slope instability is dependent on water level in the slope. Weak rocks encountered in open pit mines cover a wide variety of materials, with properties ranging between soil and rock. Created as an outcome of the large open pit lop project, an international research and technology transfer project on the stability of rock slopes in open pit mines, this book provides an uptodate compendium of knowledge of the slope design processes that should be followed and the tools. Pit slope article about pit slope by the free dictionary. Guidelines for open pit slope design hardcover dec 19 2009. In all cases in open pit mining practice more than 40% of slope instability risks depend on groundwater conditions in the slope. A risk consequence approach to open pit slope design.
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