Types of Underground Mining and Their Applications
Views: 9413 Get Science & Technology
Subject :GEOLOGY Course :ENERGY RESOURCES AND MINERAL EXPLORATIONS Keyword : SWAYAMPRABHA
The Australian Centre for Geomechanics has developed this safety training DVD for underground metalliferous mine workers. To purchase this product or find out more information, visit http://www.acg.uwa.edu.au/shop#trainprods Overview All underground mine workers will be exposed to drilling and blasting processes. The aim of this new DVD is to provide workers with the critical knowledge on drilling and blasting to aid appreciation of the importance of these mining processes and their related hazards. The DVD features an introduction to the rock breaking process in mining, followed by a section on how to handle, store and transport explosive products. The third part of the DVD covers development drilling and blasting practices; and the fourth part discusses production drilling and blasting. Target Audience Underground mine workers - the need to identify the potential hazards of working near or with explosives, and the protocols of re-entering a working area after blasting. Workers responsible for development and production drilling and blasting activities. This DVD will review drilling and blasting fundamental concepts that are critical to achieving optimal rock breaking outcomes. All industry stakeholders - those keen to learn more about drilling and blasting in underground mines. Project Sponsors: Barrick Gold of Australia; BHP Billiton Olympic Dam; Dyno Nobel Asia Pacific; Gold Fields Australasia; Newmont Asia Pacific; Orica Mining Services; Xstrata Zinc.
Views: 414335 Australian Centre for Geomechanics
Longitudinal longhole retreat is a branch of the generic mining method known as sublevel stoping and often requires the development of a rise or slot prior to production blasting. Easy Slot eliminates thee need for raise bore or burn cut blast to create the rise or slot. Easy Slot is less expensive quicker to install and provides a bigger slot thus a better production blast.
Views: 2846 ERG Sales
Canada and global mining industry This is one of a series of videos I edited for Vale. The producer I worked for travelled to many locations around the world. Shots were taken in the air, on the ground, deep underground, and on water, during summer and winter.
Views: 33845 FluidDigitalPro
Explosives Underground: Mining & Demolition Safety 🌟SPECIAL OFFERS: ► Free 30 day Audible Trial & Get 2 Free Audiobooks: https://amzn.to/2Iu08SE ...OR: 🌟 try Audiobooks.com 🎧for FREE! : http://affiliates.audiobooks.com/tracking/scripts/click.php?a_aid=5b8c26085f4b8
Views: 151183 Bright Enlightenment
Continuous mining and tunneling makes your project more efficient and easier to schedule. Mobile Miner from Epiroc is a powerful mechanical rock excavation machine, fully customizable to your specific needs. Some of the main benefits are increased safety, easier scheduling, less dilution, better tunnel quality, and higher productivity. Read more about Mobile Miner on epiroc.com: https://www.epiroc.com/en-us/products/mechanical-rock-excavation
Views: 4113 Epiroc
Raise Climber Mining Conditions This type of mining is best suited to tabular narrow vein ore bodies with enough dip for gravity ore flow. There is often considerably less waste development with raise mining than with regular open stoping. A narrow vein ore body has less ore to soak up waste development costs, making the raise mining method an obvious choice. It is better if the ore body is continuous over several hundred feet vertically. Experience has shown that raises from 75 to 150 metres length are the most economical. The method works best if the ore boundaries can be interpolated between adjacent raises. This allows the drill planning to be done before the production drill is set up in the raise. This is less important in sulphides, where the driller can tell if the bit is in ore by the colour of the cuttings. Raise Climber Mining Method Details The raise climber mining method will generally be comprised of the following steps: Development Bottom Sill: Access and haulage: These drifts are driven from the shaft or established mining areas to the new ore zone. The drifts are commonly sized to accommodate the large scooptrams used for production mucking and are often driven with jumbos. Drawpoints and Climber Nest: Drawpoints can be driven from either footwall or hangingwall, depending on how the ore zone is accessed. The climber nests are always in the hangingwall. The climbers require about 4.3 metres (14') width, 2.7 metres (9') of height and 12 metres (39') of length with extra added on for "Alicabs" and/or for low angle raises. The nest will be slashed out of the drawpoint backs if development is from the hangingwall side. Top Sill Access: These drifts are also driven from the shaft or existing development but, unless there is another lift, they often need only be large enough for the movement of supplies. Raises Raise Development: Raises must be driven big enough that a 2.4 metre (8') drill can be rotated within them, or about 2.7 x 2.7 metres (9' x 9') horizontally. Raise Rehabilitation: After the raise is driven it often must be rehabilitated, subject to ground conditions, for the safety of production crews. Hangingwall Support: Where required, the stope hangingwall can be supported with deformed strand resin-grouted cable bolts in a regular pattern along the raise. This is very cost effective as the raise is centred in the stope, which concentrates the support where it is needed most. Production Drilling: Drill holes extend to just less than half way to the next raise and are oriented slightly down from horizontal. The down dip helps the toes break to the stope wall. Hole diameters are often fairly small to avoid hangingwall / footwall damage in narrow veins. Loading & Blasting: The holes are most often mechanically loaded with either ANFO or an emulsion explosive. The blasts are timed to slash down, with the footwall holes often the last to fire. It is safest to take a few rings per blast, so that miss-holes or other blasting problems are accessible for correction. Mucking Swell: It is often best to leave ore in the stopes while blasting because of the support it gives. The broken ore often compacts slightly, resulting an effective swell of about one third its unbroken volume. Final Mucking: This step is done once the stope is completely blasted.
Views: 2860 Suresh Dangi
This is a short version of the 30 minute DVD. The DVD is dedicated to those in the hard rock mining industry. It shows a wide variety of excellent mining photographs including some very old historical photos as well, along with some awesome hard hitting rock and roll.
Views: 4135 EddiesShorts
Raise boring was developed to meet underground mining demands, but new applications continue to arise due to its inherent safety benefits and other advantages over conventional drilling and blasting. Raise boring can be used for a variety of mining applications, from ore shafts to shafts for ventilation, water or cable installations. The raise boring method enables construction of circular mechanized shafts between two mine levels without the use of explosives. A borer is set up on the upper level and drills a narrow pilot hole, typically between 23 and 35 centimeters, to accommodate a drill string. A reamer head is then attached to the drill from the lower level and raised back towards the machine. Sandvik raise boring heads optimize the performance of the boring machine through high penetration rates, great stability, low vibration and low torque demands. Together with the company's high-performance pilot bits, they enable shafts and holes from 0.66 to 6.0 meters in diameter to be bored to depths of up to 1,000 meters — quickly, economically and safely.
Views: 4736 Sandvik Mining and Rock Technology
Pics I have scanned from my photos which have turned out quite well I thought. From when I worked underground 1968 - 1981. The first part is Windarra nickel mine, 212 miles north of Kalgoorlie Western Australia. This was a trackless decline with some pretty big gear, 35 ton Wigmore Caterpillar trucks which were a modified 631 scraper with a tipping body, and 3-boom Gardner Denver pneumatic jumbos. They had open stopes with longholes drilled with GD Airtracs and some bar-and-arm machines. From memory I think one of the big stope blasts was 100,000 tons. The mine closed in the early '80s and was gutted. There were a few deaths down there, all rockfalls, all on my shift, so R.I.P. to those guys. The second part is Lake View & Star gold mine, on Kalgoorlie-Boulder's Golden Mile. I worked there as a machine miner on airlegs doing shrink stoping and intermediate driving (drifting). We worked by ourselves with no partner which was the practise then. We used Holman's Silver 3s and Silver 900 airleg machines (jacklegs). Mucking out inter drives we used air or electric 2-drum scrapers into a raise. We used AN60 dynamite primers with ANFO and electric detonators or sometimes safety fuse. This was a "traditional" mine with rail drives leading to a vertical shaft about 3000' deep from memory. The mines on the Golden Mile no longer exist because they have been swallowed up by the Super Pit.
Views: 46593 gm16v149
This is the first opportunity we've had for underground access. We were given permission to enter the mine by the landowner; he also said it was safe to enter. I'm inclined to agree, so long as one sticks to the main haulage level (documentation indicates that this is Level 4). The inclined shaft we found is clearly marked "bad air", which makes sense. It connects with workings accessed by the Traylor Shaft, which is an exhaust airway with beaucoup hydrogen sulfide coming out. Intake airflow is notable when entering or exiting Juanita; the portal is clearly an intake airway. The manway along the inclined shaft also didn't seen terribly stable. Given as we have no idea how deep the shaft went, and it appeared to have bad air, descent was quickly ruled out. We were a bit suspicious of the back the whole time through the main haulage tunnel. It was heavily-jointed, and small fragments seem to come off from time to time. Overall integrity seemed acceptable- I think that the arched design of the back binds this junk together and makes it stable. The complete lack of timbering outside of the stopes is notable. UPDATE: I've done some research, and the inclined shaft seems to be safe to enter during cooler months based on how natural-ventilation systems work. If proper ropes and anchors can be acquired, we'll be descending it this next spring.
Views: 897 Headframe Hunters
Support us on Patreon: https://www.patreon.com/desert_dog_exploring I want to bring you quality footage and exposition of even more remote mines and mining camps. I hope I'm producing something here of sufficient quality to be worthwhile to you all. If not, your comments and suggestions for improvement are always welcome! -------------------------- Prologue - The Rant -------------------------- Do not do purposefully stupid things in mines. If you want to go up/down ladders with a rope, DO IT PROPERLY. In this video you'll see a really dumb, dangerous, and deadly way of securing a rope for an assisted descent. The physics were analyzed by our very own Engineer, and for the past 20 years, I've learned to trust him. In short, someone picked the WORST way to rig their mess. If you're going to use ropes for ascent/descent, PLEASE use proper ropes. In this video you'll see a cheap Home Depot/Lowes rope, with a dodgy knot These ropes are not rated for life safety use, they stretch a LOT, and the core is just crappy nylon. Honestly, you'd have been safer with genuine paracord for a line, and a proper rock bolt for an anchor. Not optimal, but better than the death trap someone left behind! End-O-Rant --------------------- As we wander through Nevada, Drunk Mike and I keep our eyes peeled. Despite comprehensive lists of abandoned mines, we sometimes miss things in our research. The headframe of the Thompson Mine looms in the distance, though it blends in well unless you're paying attention. We, along with The Engineer, stopped at the Thompson Mine for a look. I ended up with over an hour of footage, so this exploration is going to be split into at least 2 parts, possibly 3. This also marks the first use of the DJI Mavic Pro to capture surface footage of a mine, as well as use of the drone to do a "what's over the hill" recon. Overall, it's a very useful piece of equipment and will factor into our future explorations, as you'll soon see. In this segment we see some of the winzes, the main haulage shaft up to the headframe (more on that in part 2), and numerous drifts and crosscuts. The most impressive part of this mine was the enormous amount of cut-and-fill stoping. The use of raw logs for timbering of these stopes bears witness to the age of the mine - it began as a going concern in the 1880's, finally closing up in the 40's. Some work has been done between WWII and the modern day, but not enough to change the overall character of this place. Come along as we take a determined, but humorous, look at the Thompson Mine! As always, thank you for watching. Also, as this channel grows towards 1000 subscribers, stay alert for the 1000th subscriber giveaway!
Views: 1213 DesertDog Exploring
http://www.cdc.gov/niosh/mining/works/coversheet1835.html “Rock Falls - Preventing Rock Fall Injuries in Underground Mines” is a close companion to the video Miner Mike Saves the Day! or Ground Support... It's Important!. Rock Falls teaches the importance of proper roof scaling in underground mining to avoid injury and improve work conditions. The video breaks down scaling methods in five easy steps.
Views: 753 NIOSH
Mine Safety and Health Administration Scaling DVD585 (Was VC836) - 1996 Scaling, the taking down of loose material from the roof, face and rib in hard rock mining. This videotape will remind you of some of the safety procedures and common sense practices to use during scaling.
Views: 13378 PublicResourceOrg
This is where I work now, a gold mine somewhere in Nevada, My job Ore Control. Today we are surveying in the raise timber, you may notice the numbers on the timber. Climbing up the ladder is the apex stope I will save that for another day. I will post some more video of mining,drilling, long-holes, mucking, timber setting, crushing and shipping later on.
Views: 347 gartronica
On Monday, June 22, 2009, Gov. Mike Rounds and Mr. T. Denny Sanford dedicated the Sanford Underground Science and Engineering Laboratory at Homestake during an unusual ceremony 4,850 feet underground in a former gold mine. The ceremony was in a large tunnel -- 14 feet wide by 14 feet tall -- that connects the Ross and Yates shafts on the 4,850-foot level of Homestake. The guests wore hardhats and mine lamps, but the tunnel (a "drift" in mine parlance) was lit, the temperature was 70 degrees and there was a steady breeze thanks to a large exhaust fan on the surface. The "ribbon cutting" was done in the style of hard-rock mining. Former Homestake gold miners Bill Heisinger and Alvin Burns used a traditional "jackleg" drill to punch holes into the wall of a tunnel. Then Gov. Rounds and Mr. Sanford lifted into place a plaque dedicating the Sanford Underground Laboratory at Homestake.
Views: 3430 Sanford Underground Research Facility
The annual Mine Managers Day celebrations at the University of Witwatersrand by School of Mining Engineering.
Views: 20 Alex Nghilifilwa Elias
Not only does the Vertical Miner dig regular ore deposits, but it does wonders on meteor impact craters and the ores they bring! ==================================================== Links To Check Out: ☆ My Twitter ☆ https://twitter.com/SilverbladeDagg ☆ My Patreon ☆ https://www.patreon.com/SilverbladeDagger ☆ Space Engineers On Steam ☆ http://store.steampowered.com/app/244850/ ===================================================== Check Out My Friends: ☆ Haladmer ☆ https://www.youtube.com/user/Haladmer ☆ Sharky ☆ https://www.youtube.com/channel/UCFGC0WKuWxjkSBCe8AFHZPw ☆ SmooreMC85 ☆ https://www.youtube.com/user/SmooreMC85 ☆ Grandma Shirley ☆ https://www.youtube.com/channel/UCzkY7wa8Ksxv4M5NyUYgTmA ☆ Games4Kickz ☆ https://www.youtube.com/user/Games4Kickz ☆ Midnight Designer ☆ https://www.youtube.com/user/MidnightDesigner ☆ LynVoyager59 ☆ https://www.youtube.com/channel/UChia_rAKL2z3BgYm7H0gitg ☆ xxsydcharlie ☆ https://www.youtube.com/user/xxsydcharlie ☆ TomGirlGamer ☆ https://www.youtube.com/channel/UCdufXgzMdU9FcANeJRkJpag
Views: 170 Silverblade Dagger
What is TRADITIONAL MINING? What does TRADITIONAL MINING mean? TRADITION MINING meaning - TRADITIONAL MINING definition - TRADITIONAL MINING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Traditional mining, also known as old-school mining, is a mining method involving the use of simple manual tools, such as shovels, pickaxes, hammers, chisels and pans. It is done in both surface and underground environments. Until the early 1900s, traditional mining was widely used throughout the world. It is still a used mining method in some countries, including Colombia and Peru in South America and Niger in Africa. In traditional surface and underground mining, hammers and chisels with pickaxes and shovels are used. Minecarts are used to move ore and other materials in the process of mining. Pans are used for placer mining operations, such as gold panning. The traditional method of cracking rock was fire-setting, which involved heating the rock with fire to expand it. Once the rock was heated by fire it was quenched with water to break it. Fire-setting was one of the most effective rock breaking methods until 1867 when Alfred Nobel invented dynamite. Traditional mining operations have created some of the largest handmade features on Earth, such as the Big Hole open pit mine in South Africa, which is claimed to be the largest hole on Earth excavated by hand.
Views: 248 The Audiopedia
This shows a controlled blast from an underground mine stope through to the Opencut.
Views: 41 Moz 42