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. Their practical implementation is then illustrated by two case studies of open pit mines. All covid19 related research articles, book chapters and information is free to access and available for anyone to read. Open pit geotechnics slope stability, mine design, domain. Offer pdf guidelines for open pit slope design john. Ming yan, department of earth sciences, simon fraser university, burnaby, b. Optimum design of open pit mines article pdf available.
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. Geotechnical considerations open pit audit guide page 2 of 28 introduction this document was reformatted in november 2015. 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. Pdf assessment of the influence of the slope stability. Stability analysis and design of open pit mine slope in. Open pit mine planning and design, third edition mining. The traditional methodology in consulting practice for analyzing pit slope stability is through the use of limit equilibrium 2d slices through various sections of interest in the pit.
Open pit slope depressurization using horizontal drains. 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. 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. 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. It provides guidance and essential information for mining and civil engineers, geotechnical engineers, engineering geologists and hydrogeologists. Offer pdf guidelines for open pit slope design john read.
Get your kindle here, or download a free kindle reading app. A technique for assessing ultimate openpit mine limits in. 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. 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. I m always looking for deals and working the angles. In all cases in open pit mining practice more than 40% of slope instability risks depend on groundwater conditions in the slope. 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 slope ability process involves slope stability analysis for intact rock, rock masses, and also waste or spoiled material. Fundamentals of slope design 2 fundamentals of slope design e. 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. Mar 23, 2014 guidelines for open pit slope design is a comprehensive account of the open pit slope design process. In addition, the work can be used as a practical reference by professionals. Guidelines for open pit slope design semantic scholar. The slope ability process involves slope stability analysis for. Fundamentals of slope design keynote address at slope. 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.
Dec 19, 2009 guidelines for open pit slope design is a comprehensive account of the open pit slope design process. Stability and movements of openpit lignite mines in. 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. 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. 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. 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. As such, they can provide a significant challenge for the slope designer. Open pit slope depressurization using horizontal drains a. Analysis of a slope failure in an open pit mine using tslope. Mar 23, 2016 felix baumgartner world record supersonic skydive, complete footage, unaltered capture, hd duration. Implications for open pit slope design doug stead, department of earth sciences, simon fraser university, burnaby, bc. Pdf guidelines for open pit slope design download full. 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.
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 newsouth. Open pit slope stability and ground support seminar metalliferous and coal mining. Mine water risk in open pit slope stability springerlink. Reactivation of research into factors affecting the design and stability of large rock slopes. National technical university of athens, greece agioutantis z. 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. Monitoring methods for pit slopes and other management procedures will be discussed. Participants will be encouraged to present a short max 30 min. 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. Pit design overall slope of a pit depends on several factors of the pit slope. Csiro publishing guidelines for open pit slope design series.
Rajo sur a challenging project, and a clear example of openpit mining in difficult ground conditions. Kinematic and limit equilibrium analysis are looked at in. Zhiqiang yang 1, 2, qian gao 1, maohui li 1, guangcun zhang 1 1. The maximum height of pit walls is currently about 150 meters with the current mine plan extending this distance to 400 meters. 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. This will enable the delegates to conveniently access the latest in best practice, with respect to pit slope investigations, design, implementation and performance. Jul 26, 2016 the aspects of risk associated with pit slope design and excavation will be presented. Geological and geomechanical approach article pdf available in procedia engineering 46. Pit slope article about pit slope by the free dictionary. Guidelines and considerations for open pit design deswik.
Guidelines for open pit slope design civil engineering. Jeff price has over 26 years experience in consulting engineering and research for civil and mining projects. Stability analysis and design of open pit mine slope in china. 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. 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. Slope stability 2020 2020 international symposium on slope. 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. Davide elmo, department of earth sciences, simon fraser university, burnaby, b. Guidelines for evaluating water in pit slope stability. The analysis provided clients with an analysis of increased rigor and allowed a rationale for design of open pit slopes.
Guidelines for open pit slope design john read, peter. The book, which is entitled guidelines for open pit slope design 1. Pit slope optimisation at jwaneng diamond mine, botswana news. Tslope allows the user to set up a number of slope cases based on the slope model and material parameters density, shear strength. 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. Debi prasad tripathy department of mining engineering national institute of technology rourkela769008. Pdf slope design and implementation in open pit mines. Srk examines slope stability of jwaneng open pit diamond mine for expansion. The management of the slopes in an open pit mine depends, amongst other things, upon the assessment of the stability of these slopes. Photograph of pit area involved with slope failure. Click here to contact us about performing open pit 3d slope stability analysis. Felix baumgartner world record supersonic skydive, complete footage, unaltered capture, hd duration.
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. Key laboratory of high efficient mining and safety of metal mine ministry of education, university of science and technology beijing, 83,beijing china. Guidelines for open pit slope design is a comprehensive account of the open pit slope design process. Open pit slope design rock mechanics and engineering volume 3. Guidelines for open pit slope design by read, john ebook. The project is funded by mining companies, who represent a majority of the worlds diamond and base metals.
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 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. 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 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. Guidelines for open pit slope design in weak rocks.
Guidelines for open pit slope design in weak rocks martin, derek, stacey, peter on. Canmet pit slope manual canmet pit slope manual on computers running microsoft windows with flash player 11. 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. In 1996 a slope failure occurred at the round hill open pit mine, operated by macraes mining company ltd. The paper also briefly discusses various warning signs of slope instability, introduces the most common slope monitoring methods, describes the. Stability assessment and slope design at sandsloot open. Outstanding textbook designed for courses in surface mine design, open pit design, geological excavation engineering and in advanced open pit mine pla. Open pit slope design and implementation canadian mining. This course presents an overview of the process for the design and management of slopes in open pit mines. In indian mining conditions, slope design guidelines were not yet formulated for different.
At batu hijau, from a geotechnical perspective, the slope design philosophy and. Guidelines for open pit slope design hardcover dec 19 2009. 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. Open pit slope stability and ground support seminar. 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. 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. A technique for assessing ultimate openpit mine limits in a changing economic environment. A risk consequence approach to open pit slope design. Guidelines for open pit slope design download free pdf. 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. Analysis of a slope failure in an open pit mine using. 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.
Both books were commissioned under the large open pit lop project, which is sponsored by major mining companies. Stability analysis and design of openpit mine slope in china. Guidelines for open pit slope design 1st edition john. Weak rocks encountered in open pit mines cover a wide variety of materials, with properties ranging between soil and rock.
If you dont already have adobes pdf reader, you can download it free. The publisher has supplied this book in encrypted form, which means that you need to install free. Its at this phase that the open slope designs comes in. Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. 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. Comprehensive design charts for the footing on slope problem. University of technology concerning large scale slope stability in open pit mining. Guidelines for open pit slope design read, john, stacey, peter on amazon.
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