Pit siope manual, aiapter 9 waste embankmentsu8 costes, d. Mr attew is a mining industry veteran who has dedicated 25 years to the mining sector. Olympic dam expansion project tailings storage facility design report p 7 of 105 1 introduction 1. Tailings management is an important component in the design and operation of mining projects. Chapter 11 design and construction of tailings dams. Committee on large dams uscold, denver, colorado, isbn 188457503x, 1994, 82 pages compilation and analysis of 185 tailings dam incidents. It is essential that each specific dam has its own design process and one important factor is the estimated quantity of tailings to be disposed. Recovery of gold from the mouteh gold mine tailings dam article pdf available in journal of the southern african institute of mining and metallurgy 1097. It is aimed at people who work within the mining community, at officials who rcgulate the industry and at other stakeholders, such as those who live in the vicinity. In the gold industry, for example, only a few hundredths of an ounce of gold may be produced. Abm resources nl draft environmental impact statement page 287 of 330 chapter 10 tailings and waste rock management twin bonanza 1 gold mine 10.
Tailings storage facility governance policy evolution mining. Inpit tailings storage at granites gold mine, nt 61 6. The design height of the largest tailings dam at present is 260 m. In addition, numerical simulation has proved to be a useful tool for the analysis of the seepage, deformation, seismic response, as well as the assessment of stability of tailing dams. There is no ideal tailings dam design because each environment. In 2016, the international council on mining and metals icmm. Postmount polley tailings dam safety in transboundary british columbia. Design, and analysis of tailings dams bitech publishers ltd.
A compilation comprising many more tailings dam failures can be found here. Differences between waterretention dams and tailing dams. Interactive design of a large tailings dam to achieve mine waste management objectives sanne brinkman, knight piesold ltd. Manual on tailings danis and dumps 1983 and bulletin no. Abstract similarities are noted in the practices and problems of constructing dams to impound mine tailings fly ash and chemical wastes. Design and evaluation of tailings dams august 1994 u. Operational tailings management for successful closure. Tailings sand dams are a special type of hydraulic fill dam for containing fine mine waste tailings, whose construction dates back to at least the middle of the 19th century.
New gold has implemented a comprehensive tailings management approach focused on identifying and minimizing. The design of dams constructed mainly from tailings. Environmental and safety incidents concerning tailings dams at mines. Operation, supervision and maintenance manual for each tailings. The procedure usually adopted in such cases is to separate the tailing into coarse sand and fines in a classifier, and to use the coarse product to build up the wall. Unlike water retaining dams, where the dam wall is usually constructed from concrete or some combination of engineered rock fill and soil, most tailings storage facilities are built using designs that partially depend on the tailings themselves for support, a design feature not available to water supply reservoir dams chambers 2012. Mar 11, 2018 in the case of newcrest mining limiteds cadia mine, tailings are what is left over once the gold and copper has been extracted and processed.
It describes the preferred structure of the design report for tailings storage facilities tsfs that should be submitted to the department of mines and petroleum dmp in accordance with section 4 of the mining proposal guidelines as required by the mining act 1978and the tailings storage facilities in western australia code of practice. Types of mine tailings gravity process tailings flotation process tailings leach process tailings includes but not limited to tailings from copper, gold. The particular design of these retaining structures is unique to a particular environment and mining operation. Tailings management plan tsf design overview and donlin gold project tailings characteristics. Central thickened discharge at sunrise dam gold mine, wa 55 case study. Sep 07, 2017 best practices for tailings dam design. Design, construction and management of tailings storage facilities for surface disposal in china.
Results of a survey for the years 19801996 by mining journal research services. The site was owned by 6666 mineral industry joint stock company, and the previous operator was the bong mieu gold mining limited company. Some authors attribute the first use of this type of dam to the heyday of gold mining in california, usa, but it is possible that their origin is even older. Vick, john wiley sons external link, new york, 1983, 369 p. Design and evaluation of tailings dams epa web archive. Us fema federal guidelines for dam safety hazard potential classification system for. The purpose of this booklet is to enhance understanding of tailings management and to demonstrate how the mining industry is managing rhe risks associated with tailings disposal. Mclver partner casagrande consultants arlington mass. Inmarsats mining innovation director, joe carr outlines the challenges faced by global mine tailings management, before introducing inmarsats new remote tailings dam monitoring solution.
Chapter 11 design and construction of tailings dams by leo casagrande professor of the practice of foundation engineering harvard university and bruce n. Most of the cyanide remains in the solution or the slurries after the cyanidation process. Safe tailings dams constructions european commission. The objective of tailings management is to ensure robust processes are in place to ensure safe, longterm storage of mine tailings. Postmount polley tailings dam safety in transboundary. Design, construction, operation and the effect of fines. Appendix f1 tailings storage facility design report. Pdf design, construction and management of tailings storage. Chapter 11 design and construction of tailings dams authorstream. Zhenan gold mine, shanxi gold upstream 2006 17 killed. Tailings disposal, tailings management, tailings dam failures, environmental hazards, china tailings.
A brief history of the south african gold mining industry is given with emphasis on. Xiangfen tailings pond, shanxi province iron upstream 2008 277 killed. Ore tailings are generated, and waste residues are discharged after useful components. Environmental protection agency office of solid waste. To achieve real cost benefits, it is necessary to integrate the design of process plant with that of tailings disposal while giving consideration to all design aspects, from site. Planning, design, and analysis of tailings dams, by steven g. Jason most recently served as the chief financial officer at goldcorp inc.
Future of mining australia 2019 the future of tailings. The tailings storage facility tsf consists of the main tailings storage. Tailings are a byproduct from the mining industry when the minerals are extracted from the ore. Based on lessons learned from the investigations of the recent mount polley and fundao tailings dam failures in british columbia, canada and minas gerais, brazil respectively, government agencies, regulatory bodies and industry are improving how tailings dams are designed, built and maintained. The projects, red chris, schaft creek, ksm, and galore creek, are all.
A priority for a reasonable and responsible mining organization must be to proactively isolate the tailings so as to forestall them from entering groundwaters, rivers, lakes and the wind. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. Numerical simulation of seepage and stability of tailings dams. When considering the design of a tailings storage facility there are many parameters which impact on the optimum site selected and the storage and tailings discharge methods used ritcey 1989. The casino project is a proposed coppergoldmolybdenum mine in the southwest yukon. Pdf, stresses that tailings dams for largescale mining operations. Best practices for tailings dam design klohn crippen berger. A tailings storage facility tsf is a structure made up of one or more dams built for the purposes of storing the uneconomical ore ground up rock, sand and silt and water from the milling process.
The purpose of this report is to evaluate current state of nevada gold cyanide mill tailings facility design, operation, and closure regulations, compare them to the uranium mill tailings design and operating regulations promulgated at 40 code of federal regulations cfr 192, and compare each to methods used at three gold. A tailings dam is typically an earthfill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. The integrity of tailings dams is dependent on both good design. Tailing disposal methods and tailings dam construction design. A primer on the manmade structures built to hold toxic mining waste in perpetuity. Two basic techniques for constructing tailings dams will be covered in this report 1 the use of mill tailings themselves as the construction medium and 2 the use of borrow material to construct the retaining structure and impound the tailings. Tailings are the waste materials left over after separating the valuable metals or minerals from an ore. The release was from a tailings dam breach, which was sealed with sand bags two days later. An upstream tailings design begins with the construction of a starter dam. Pdf recovery of gold from the mouteh gold mine tailings dam. At the same time, a vast quantity of mine tailings, as the waste. Construction progresses such that the crest of the dam moves upstream to the starter. Tailings are discharged behind the dam and form a tailings beach as water drains, allowing the tailings to harden and form a foundation for the next lift.
The karamken gold tailings dam in russias far east crashed in. Includes but not limited to tailings from copper, gold, iron lead rare. Includes but not limited to tailings from copper, gold. In the case of newcrest mining limiteds cadia mine, tailings are what is left over once the gold and copper has been extracted and processed. A case study of a gold mine tailings dam has been used to apply the.
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