Rift software rift td tailings deposition modelling. What do computer science students think about software piracy. The application will calculate total volume for an individual cycle. Two postdoc focusing on deposition of mine tailings and drill cuttings, sedimentology and foraminifera. The tailings are usually discharged from the top of the dam crest creating a beach that becomes the foundation for future embankment raises vick 1990. Mclver partner casagrande consultants arlington mass. This results in a steeper beach that allows tailings to be stored in increased thickness within the available storage area. Conventional tailings thickened tailings paste cake increasing solids concentration fully sheared yield stress. The use of planar electrokinetic geocomposites egcps in fft disposal areas could improve insitu dewatering by allowing water to drain after it is expulsed during consolidation and by permitting the use of electroosmosis eo to displace a significant. Who we are royal ihc market leader in integrated vessels, advanced equipment and lifecycle services for the dredging, offshore construction and wet mining markets headquarters in. Deposition modeling of high density tailings using smoothed particle hydrodynamics a thesis submitted to the faculty of graduate and postdoctoral affairs in partial fulfillment of the requirements for the degree masters of applied science by yagmur babaoglu b. Tailings characteristics can vary greatly and are dependent on the ore mineralogy together with the physical and chemical processes used to extract the economic product. Proceedings tailings and mine waste 2015 vancouver, bc, october 26 to 28, 2015 pseudo 3d deposition and largestrain consolidation modeling of tailings deep deposits murray fredlund, matt donaldson, krishna chaudhary soilvision systems ltd abstract the design of deep deposits requires the numerical modeling of largestrain consolidation to. Rift td advanced tailings deposition modelling software rift td is an advanced threedimensional digital terrain model, specifically developed to model tailings deposition.
This application greatly reduces the amount of time required to design and model a tailings fill plan. A case history is presented to illustrate how the tailings dam construction method must be coordinated with the method of tailings deposition. The tailings would first be thickened to reduce water content going into the impoundment. The first method which i would like to introduce is single point discharge. Tailpro resource an interactive tool aimed to improve tailings management and is designed to be used by industry, regulators, designers and operators involved with tailings storage. Investigation of the use of mine tailings for unpaved road. Potential environmental benefits and requirements for geochemical characterization rens b. Icmm is committed to strengthening the social and environmental performance of the mining and metals industry to deliver the materials essential for human progress in a responsible way.
Hidensity paste thickener westech engineering, inc. They are the largest source of the 183 identified tailings deposits in the. Tailings deposition modelling software for tailings dam consultants, designers and operators. The zoning of the tailings deposit into sandy, intermediate and slime zones is based on in situ vane. The principal function is the model tailings function, which does the work of building the final surface. Deepsea mine tailings placement dstp is an alternative to landbased minewaste disposal, whereby mineral ore is converted into slurry and transported via a. But how can we do this quickly without software like muck 3d and vulcan. The thickening requirements include a single 17 m diameter highrate thickener and a flocculant makeup and dosing plant capable of dosing at a rate of 50 gt. Abstract similarities are noted in the practices and problems of constructing dams to impound mine tailings fly ash and chemical wastes. Now you need to grade all of your lines to your desired tailings beach.
Tailings model that allow for subaerial deposition of tailings. The characterization of the water in upper strathcona tailings treatment system water showed that it was acidic ph 2. Tailings are transported to the tailings storage facility tsf at a. Mend subaqueous deposition of tailings in the strathcona. Surface disposal of past tailings at the bulyanhulu gold.
If shouyun heshangyu tailings dam break, sand flow process line is shown in figure 2, after tailings dam break, tailings sand flow at several different moments is shown in figure 3. Tailpro consulting works with specialist international consultants to provide an integrated solution. Aug 24, 2015 tailings remediation with dredge mining technology bart hogeweg andrina drost 2. Dewatering of tailings and deposition in the form of paste tail ings can be bene. These filtered tailings are normally transported by conveyor or truck, deposited, spread and compacted to form an unsaturated tailings deposit davies and rice 2001. He has since devoted a significant part of his life towards this goal for the good of the mining industry and the environment. Three general methods of tailings deposition are typically recognized.
Steenkamp worleyparsons rsa, johannesburg, south africa the reporting of tailings has historically posed a conundrum in as far as reporting to the correct level of confidence. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. Models can be run either as capacity depositing from known elevations or volume driven deposit known volume and determine beach elevation. Tailings definition of tailings by medical dictionary. In my presentation i would like to introduce main operatings, types and applications tailings dams. Tailings remediation with dredge mining technology bart hogeweg andrina drost 2. Computer science students are the future information and communication technologies professionals. For conventional storage the tailings are generally discharged from spigotsoutfalls located. Dewatering of oil sands tailings with an electrokinetic. Scale of tailings production is immense, since metal extraction is usually only ounces or pounds, for. Water savings and tailings deposition can be accomplished with fewer tanks and at a lower capital cost than with the equivalent number of deep bed paste thickeners. Tailings dams are also fundamentally different from water supply dams in several respects. Construction of tailings dams in north america has traditionally centred on the concept of water retaining type structures with essentially subaequous deposition of. Beaching angles and evolution of stack geometry for.
Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore. Today, software piracy is an issue of global importance. Tailings impoundments have been around for about a century. Which method is best suited deposition of waste decided characteristics of the tailings materials, the deposition cycle, and the climate. Multiple deposition nodes, deposition lines or deposition paths. Figure 2 shows a simplistic diagram of the stages of construction of an upstream raised embankment.
Aerial photographs proved to be useful for confirmation of the location of the tailings discharge points. May 30, 20 deepsea mine tailings placement dstp is an alternative to landbased minewaste disposal, whereby mineral ore is converted into slurry and transported via a pipeline to processing plants. Many tailings are toxic and must be kept perpetualy isolated from the environment. Considerations for tailings facility design and operation. Pseudo 3d deposition and largestrain consolidation modeling. The surface deposition plan at the bulyanhulu site involves the deposition of a stable paste tailings stack using endofpipe discharge from multiple deposition towers. Technologies for speeding up the consolidation process have proven effective in benchscale tests. Utilizing its expertise in slurry dewatering technologies, westpro offers turnkey tailings management systems that allows owners to reduce or eliminate costly tailings ponds by producing stackable tailings. A tailings deposition that looks realistic, showing flow originating from each point a spigot at a specified grades outwards until it is bound by the existing ground or a designed embankment. We created a guide on what software piracy is, types or software piracy and the dangers they present.
Worldwide, the storage and handling of tailings is a major environmental issue. Mulligan2 1graduate student, department of building civil and environmental engrg. This is a very important development for the maritime. The lowdensity tailings disposal system is shown in figure 2.
In a few cases, tailings are deposited underwater subaqueous which generates a higher settled slope than subaerial deposition due, it is thought, to the higher. Mcphail, metago engineering, australia abstract the reliable prediction or management of beach slope and stack geometry is integral to realization of the. With innovative products, global field support and industry leading technical expertise, basf mining solutions provides sustainable solutions which increase productivity, recovery and flexibility throughout the mining operations including leaching, solvent extraction. Mine tailings are the ore waste of mines, and are typically a mudlike material. Upon discharge, the tailings slurry segregates such that the. Rift software rift td tailings deposition modelling software. The engineering characteristics of tailings are in most instances influenced by the degree of thickening and the method of deposition. Beaching angles and evolution of stack geometry for thickened. Mine tailings disposal is therefore a critical issue for any mine project and must be thoroughly studied before the most suitable solution of each case is found. Chapter 11 design and construction of tailings dams by leo casagrande professor of the practice of foundation engineering harvard university and bruce n. Tailings are sometimes over or underestimated, excluded, or incorrectly reported. As the polymertreated tailings are discharged from the pipeline, the large and small suspended particles in the tailings segregate quickly from the water, and the water drains away. Paul and his company, australian tailings consultants, have sponsored this project. Wide client base in tailings related projects in base metals, precious metals, and oil sands.
The methodology is outlined in the paper and its utilization in a typical case study is examined. The oil sands industry generates large quantities of mineral waste, such as fluid fine tailings fft, whose disposal is often challenging. Modelling a tailings deposition using civil 3d kriging. Dry stacking of tailings is normally carried out by a radial conveyor stacker or by truck davies and rice 2001. Reduced viscosity associated with the underflow concentrations of the hidensity thickener results in lower pumping costs an important factor for deposition areas far from the plant. Leading practice in tailings planning for highthroughput mining.
Desiccation contributes to strength but excess desiccation is a concern in sulphidic tailings due to the possibility of oxidation and acid rock. Pettersen asplan viak and one postdoc shared with wp 1. Tailings is a combination of the finegrained typically siltsized, in the range from 0. Submarine deepsea tailings deposition is an alternative method of the landbased minewaste disposal, whereby mineral ore. According to their functions, dams serve three main purposes. Chapter 11 design and construction of tailings dams authorstream. A new layer of tailings are then placed over the dried area at a time corresponding to the facilitys discharge zoning plan. This type of tailings storage produces a stable deposit usually requiring no retention bunding and is referred to as dry stack. Goldsim is a probabilistic simulation and modelling software package that has. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed the extraction of minerals from ore can be done two ways.
Subaerial deposition exposes the beached tailings to oxygen and water allowing oxidation of infused sulphides and the production of acids newman, white et al. Pseudo 3d deposition and largestrain consolidation. Oil sands mining operations generate large quantities of fine tailings that can take many years to consolidate into solid ground under normal environmental conditions. Surface disposal of past tailings at the bulyanhulu gold mine. A combination of technological developments and an understanding of the flow behaviour rheology of tailings throughout the paste production, transport and deposition process allow for effective.
Oct 02, 2014 a tailings deposition that looks realistic, showing flow originating from each point a spigot at a specified grades outwards until it is bound by the existing ground or a designed embankment. The processing and storage of mine tailings is a key environmental issue for mining projects around the world. In situ tailings characteris tics and the potential for liquefaction during seismic loading which may result from the various disposal methods are discussed. Draw 3 more path ways on one side of the deposition, a. Study on the risk assessment of the tailings dam break. Select start point, type starting elevation, select to the end and type grade on all lines. Tailings are transported to the tailings storage facility tsf at a flow rate of 233 m3h and. Cerro san cristobal 9511, quilicura, santiago, chile. Rift software mine magazine issue 72 september 2018. Tailings management responsible management of the worlds resources is key to enabling a sustainable future for us all.
Tailings deposition is a modelling application that automates the estimation of tailings deposition for a given basin, dam, and spigot configuration. Goldtail tailings modeling software incorporates consolidation. Use of paste technology for surface deposition and underground backfill of tailings provides an attractive method for minimizing the engineering and environmental challenges commonly associated with the disposal of mineral wastes. Mine tailings deposition practices, liquefaction potential. The remaining functions are tools to assist in the. Wolverine project tailings facility operation, maintenance and surveillance manual v201001 yukon zinc corporation july 2010 1 1 introduction this wolverine project operation, maintenance and surveillance oms manual is a requirement of quartz mining license qml0006 qml part. Chapter 11 design and construction of tailings dams. In conventional tailings deposition and dike cell construction, tailings slurry whole tailings or cyclone underflow is pipelined and discharged onto the beaches inside the dike or discharged into cells where dozers compact the material to form dikes. Currently, water balance models of the tsf pond assume a constant tailings. Chapter 10 investigation of the use of mine tailings for unpaved road base construction ali a.
It is therefore essential that while investigating the properties of tailings that the physical characteristics and material parameters e. With innovative products, global field support and industry leading technical expertise, basf mining solutions provides sustainable solutions which increase productivity, recovery and flexibility throughout the mining operations including leaching, solvent extraction, flotation, solidliquid separation and tailings management. Water from the lower end of the strathcona tailings treatment system has been treated and. Kari skirbekk and beata sternal, and one professor ii. Tailings can be discharged using subaqueous below water or subaerial techniques above the water line, on the ground or on the tailings beach dpi 2003. Who we are royal ihc market leader in integrated vessels, advanced equipment and lifecycle services for the dredging, offshore construction and wet mining markets headquarters in the netherlands, with a global presence.
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