The mining method selected is determined by the size, shape, orientation and type of orebody to be mined. The wider section, that may be either the vein or the waste, is resued and mucked before slashing the narrow section. Beyond airleg mining narrow vein mining in the 21st. In narrow vein mining it is often not possible to limit stope width to the vein width when utilising blasting for rock breakage. Therefore, when narrower areas are encountered in these sectors, the mining method generally used to recover these stopes is the longhole retreat method. Companies must come to terms with this if they are to have a successful knowledge management program.
Feb 17, 2016 in this short 10 minute webinar, cath pitman, amc senior geologist, discusses the importance of understanding the risks associated with the modelling and est. The pickaxe of vein mining is an item in the tools category. How would one detach vein miner from the sneak function. Some pits operate at a rate of more than 100,000 tpd. A1226 september 1998 with 1,362 reads how we measure reads. In summary, there are three dominant techniques worldwide for mining gentlydipping narrow vein. Design and application of an efficient mining method for. Australasian institute of mining and metallurgy ausimm. Strategies for minimising and predicting dilution in narrow. Hand held mining techniques shrinkage stoping, leading stoping and cut and fill have the advantage that they can be selective. In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock.
The conference brought together those involved in narrow vein mining, including. Narrow vein and reef 2008 steve konieczki hollister project. The mining rate is greater than 20,000 tonnes per day tpd but is usually much greater. System analysis and simulation of narrow vein mining method with underground preconcentration mario morin, andrew bamber, malcolm scoble department of mining engineering. Waste rock dilution in stoping of steeply dipping narrowvein. The research encompassed both stope design and narrow vein longhole blasting. Usually, the development is done two years in advance of the production schedule. Telling me that you are using it a pack is ok, but dont make it a question. Parameters considered include orebody characteristics, ore mineralogy, grade, metal value, mining rate and cost.
Narrowvein modelling and mineral resource estimation. The future of narrow vein mining depends upon skilled professionals and on developing practical and innovative methods for orebody definition, mining and. Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens or in certain skarn environments. Narrow veins are major sources of many commodities, including gold, silver, tin, tungsten, coal, uranium and sometimes copper, lead and zinc. Mining your companys knowledge is necessary, but it is difficult to know how rich the seam is because a core characteristic of knowledge is that it is embedded, hidden from view. The origin of the phrase may stem from either mining or anatomy. Vein miner about a mod to help mine veins of ores by mining blocks of the same type in a chain reaction, giving you the blocks at the end.
A new empirical design approach has been developed for estimating unplanned dilution from open stope hangingwalls and footwalls. A 5mtpayload slp5 lhd, one of four lowprofi le machines for hardrock mining from ghh fahrzeuge. The basic, uncomplicated design provides easy maintenance and very economical operation. Minimizing dilution in open stope mining with a focus on. Gold quartz veins in a hardrock gold mine, stoping and mucking mbmm duration.
For better support for mods, use veinminer mod support. Reefs are en echelonstyle narrowvein systems dipping from 25 to 70 west or 70 to 90 east. Narrow vein mining conference 2008 the ausimm publications. For open space filling to take effect, the confining pressure is generally considered to be below 0. A number of mines overseas are introducing mechanization into steep narrow vein mining, obtaining the increased productivity which this brings, but maintaining. The actual mining parameters and existing mechanized equipment make profitability difficult to achieve. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. Mining this narrow style of mineralization can be considered as relatively high risk, not only due to the high cost of exploration and mining per unit of metal, but also to the frequently limited size of the resource. The mining industry is continually looking for ways to automate and mechanize its operations. I found the phrase open up a vein of fury in the article of todays washington post as shown below. Costerfield a narrowvein case study ausimm bulletin.
Southern african institute of mining and metallurgy, 2006. Working from a geological block model, the tool automates the process of generating sectional slices through the ore body. It is an open stoping method and is very similar to sublevel open stoping, longitudinal longhole retreat, and blast hole stoping. Sponsors of the 2nd amira blasting and reinforcement technology project expressed concern about the applicability of empirical stability charts to narrowvein stope design and dilution prediction. One of these new additions, the muki micro jumbo, successfully completed its first project in october confirming its gamechanging capability for narrow vein mining projects. Most vein modelling and mineral resource estimation methods for narrow vein deposits uses three dimensional 3d block grade estimation, based on kriging and inverse distance weighting. Federal and provincial funding will offset the technical and financial risks of developing and optimizing a narrow vein mining system for use in steeplydipping narrow gold veins. Veins mined by these methods typically range from 0. When you break ore with this pickaxe, connected ore blocks are broken as well, even if they are of a different type. The operational challenges of narrow vein mining include controlling overbreak as the veins being mined are only 300 mm wide.
The wider section, that may be either the vein or the waste, is resued. This is a great way to quickly break the ores you find. This web site presents the results of a research project on narrow vein mining lead by natural resources canada from 1999 to 2005. System analysis and simulation of narrow vein mining method. The methods allow continued sampling of the face, control of hanging wall. In the case of a typical 500,000 tonne per annum narrowvein mine, over mining a 0. Pdf narrow vein mining at charters towers, queensland, by. It is clear that the future of narrowvein mines depends on the development of.
Dilution, narrowvein stoping, underground mining, electronic. Costerfield has developed methods and modified equipment to suit extraction of these veins. If they dont have it installed, then of course it will not work. Conventional narrow vein mining, utilising hand held methods, is expensive and requires specialised miners who are becoming a rarity. In this short 10 minute webinar, cath pitman, amc senior geologist, discusses the importance of understanding the risks associated with the modelling and est. Check with the admin and see if they have veinminer installed on the server. In addition, most modelling packages require the assumption of a constant dip and dip direction for the whole vein. Ground control safety for deep vein mines keywords. Ask and dont receive if you ask for permission to use this mod in any pack, you are not allowed to use it in any pack for 1 month. Narrow vein mining conference 2012 perth, australia 26 27 march 2012 editor.
The theme for the ausimm narrow vein mining conference 2012 was working smarter through technical collaboration. This is a great way to quickly break the ores you find and continue down the line at a much faster pace. Apr 10, 2017 in 2016, pybar acquired a number of unique rigs providing a strong competitive edge in the market. Ive tried reassigning sneak and vein miner to various keys, but it seems the vein miner in the control panel is strictly ancillary to the one attached to sneak. Narrowvein modelling and mineral resource estimation amc. Narrow vein mining at charters towers, queensland, by longhole open stoping conference paper pdf available october 2008 with 385 reads how we measure reads. Choice of method welcome to the narrowvein mining project. The orebody can be narrow vein such as a gold mine in the witwatersrand, the orebody can be massive similar to the olympic dam mine, south australia, or cadiaridgeway mine, new south wales. Asd quickly generates detailed stope shapes that are traditionally designed manually. Anaconda mining targets narrow vein mining with new research project innovation 26 june 2017. Citigold corporation operates the warrior gold miine at charters towers, northern queensland, mining narrow quartz veins 0. Moxham sandvik lonmin platinum since the early 1970s research has been ongoing to develop a costeffective way of continuously mining the narrow reef, hard rock, typical of south african gold and platinum mines.
Geologic conditions and events ground control ground falls this page is archived for historical purposes and is no longer being maintained or updated. For narrowvein mining, the company offers lhds with 3, 4. To address these concerns, a number of parameters identified as having a. Mining of narrow steeply dipping veins geotechnical mining. On top of that, i cant vein mine stone with a pickaxe at all. The extreme stresses associated with mining at greater depthsoften a mile beneath the surfacecan lead to mininginduced seismic events that endanger the workforce and damage ground support, underground entries, and mining equipment. Invein grades are generally around 30 per cent antimony and 50 gt gold and, with planned dilution, average 35 per cent antimony and 812 gt gold. Beyond airleg mining narrow vein mining in the 21st century p l mccarthy 1 abstract higher commodity prices and environmental considerations will make selective narrow vein mining more attractive in future. Oct 12, 2016 narrow vein mining engineering and mining journal, oct 12, 2016. Anaconda mining partners in innovative narrow vein mining. System analysis and simulation of narrow vein mining. Jones, md, msph, naval health clinic, quantico, virginia peter j.
The hydraulic flow involved is usually due to hydrothermal circulation veins are classically thought of as being the result of growth of crystals on the walls of planar fractures in. Anaconda mining targets narrowvein mining with new research project innovation 26 june 2017. Narrow vein mining engineering and mining journal, oct 12, 2016. Strategies for minimising and predicting dilution in. Klondex mines ltd specialises in narrow vein gold and silver deposits. The new years day suicide bombing of a church that killed 21 people has opened up a vein of fury among egypts christians, built up over years of what they call government failure to address persistent discrimination and violence against their community. Abstract the application of underground preconcentration technology to narrow vein mining has the potential to change the. Find, read and cite all the research you need on researchgate. Narrow vein mining conference ballarat, vic, 14 15 october 2008 3 strategies for minimising and predicting dilution in narrow vein mines the narrow vein dilution method1. So i try to press one tap, as if to turn it on it and chop it still doesnt work, tried to press it again. Transverse longhole stoping is a bulk mining method in which the long axis of the. Typical vein orientation is shown in figure 2 srk consulting, 2015. In 2016, pybar acquired a number of unique rigs providing a strong competitive edge in the market. Pdf narrow vein mining at charters towers, queensland.
Open pit mining mining methods 5 open pit mines are used to exploit low grade, shallow ore bodies. Pdf the nature of dilution in narrow vein mining operations. The important factors which affect the cost and appropriateness of each method include. Narrow vein and reef 2008 steve konieczki hollister. The pickaxe of vein mining can be crafted in an enhanced crafting table. This presents a great challenge for narrowvein operations. Australasian institute of mining and metallurgy ausimm pod publ. Can be optionally be installed in the client for hotkey support can have personal settings that can be remembered using the client part of the mod actually uses the tool to mine. The mining method mostly used is a transverse primary and secondary longhole method. Position 1 is favoured because in a dipping vein, the hanging wall is more apt to move into any mining operations than the. Mining is the process of extracting minerals like gold, silver, copper, nickel and uranium metallic and salt, potash, coal and oil nonmetallic formations that concentrate naturally in the earth. Pickaxe of vein mining thebusybiscuitslimefun4 wiki github. A mod to help mine veins of ores by mining blocks of the same type in a chain reaction, giving you the blocks at the end. I am the admin, and yes it is installed on the server, and the server config also says enabled for keybind.
The mining method must be varied for different specific deposits. Proceedings of a meeting held 2627 march 2012, perth, australia. Pickaxe of vein mining thebusybiscuitslimefun4 wiki. Other methods, such as vein mining by horizontal drilling from a raise platform are currently being tried in australia. Here you will find, for each mine visited, the information collected on mining methods, challenges and innovative solutions, complete with documents, photos, plans and sketches. It is an unenchanted diamond pickaxe which can mine entire ore veins at once. If your download doesnt start automatically, click here. This thesis presents the results of three years of research which focused on minimizing dilution in open stope mining. Pdf citigold corporation operates the warrior gold miine at charters towers, northern queensland, mining narrow quartz veins 0. Productivity improvements have involved developing a stoping method and equipment to suit 1. Together with hazemag, mine master and mts perforator, ghh fahrzeuge is part of the schmidt, kranz groups mining alliance.
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