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Safe mining operations through technological advancement. Moshood Onifade, ... Amtenge Penda Shivute, in Process Safety and Environmental Protection, 2023. 3.1 Drilling and blasting. Drilling and blasting in mining are conducted for rock fragmentation to allow easier material handling for comminution. Despite the relevance of rock fragmentation in …
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2021 marks a significant milestone for the Khoemacau copper and silver project in Botswana – production start-up. While it represents the introduction of a new, large-scale and fully mechanised operation in the country, the long-term vision is to double production, at the very least, JOHAN FERREIRA, CEO at Khoemacau Copper Mining …
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The method of induced blasting, may it be from surface or underground, has become a proven approach during depillaring operations in blasting gallery, longwall mining and mechanised mining with ...
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revitalising mining research, development and innovation in South Africa to ensure the sustainability of the industry. This is achieved through the South African Mining Extraction, Research, Development and Innovation (SAMERDI) strategy. The strategy comprises six research programmes: 1. Longevity of Current Mining; 2. Mechanised Mining Systems; 3.
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Mechanised mining methods have gone on apace outside of the hard rock, narrow-reef scenario. ... In the absence of drilling and blasting, there is no seismic shake-up.
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French Lorraine iron ore accounts for 94% of the total production, while 58 mines in Lorraine are mined by the room-and-pillar method. In the United States, the method is used by 65 percent of ...
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Emerging trends in drilling and blasting technology: concerns and commitments Pijush Pal Roy 1 Received: 27 October 2020 /Accepted: 11 March 2021 # Saudi Society for Geosciences 2021 Abstract In conventional blasting when explosive is detonated, it releases huge amount of effective and non-effective energies that can
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Shaft sinking by drilling is widely used in mining, construction and coal industry. Measuring the shaft borehole accurately, is of great importance to the quality in …
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Drilling and blasting are widely . ... For many years, effective mechanical excavation methods were sought that would allow the development of a mining machine and a mechanised longwall complex ...
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Mechanised Drill and Blast (MDB) "Mining safely and effectively, with zero exposure" The Mechanised Drill & Blast programme is targeted at providing sustainable mechanised solutions to the gold and platinum mining industries by introducing disruptive technologies to facilitate zero harm and achieve financially sound underground mining operations …
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The realistic environment includes ventilation systems, support structures and blasting systems. "Learners are taken through the full value chain of mechanised mining activities, from the waiting places, entry exam and safe declaration to the installation of support and cleaning of blasted rock," Pretorius says.
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We changed to a mechanised method, combining inverse box holes with drop raising. "This new mechanised method entails drilling the ore pass from the bottom of the rock upwards at an angle using an automatic drilling machine. This minimises the number of people physically involved in the drilling and blasting of the ore passes."
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Newcrest test drill and blast technology in New South Wales. Australia-based Newcrest Mining's Cadia Valley underground mine in New South Wales was the site of a 30-day trial for new drill and blast systems from MacLean Engineering and Orica in June 2020.. The trial provided the opportunity to test new technology from MacLean's …
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intensive conventional mining method of drilling with hand-held jackhammers, and cleaning stope panels and gullies with scraper winches. This method has been labour ... mines (and others), introduced mechanised mining methods with much success. However, few gold or platinum mines have been able to make a 1-m wide stoping width viable by …
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Bomi Drilling & Blasting (Pty) is more than just a company. It is a passion project, a legacy, and a testament to the power of hard work and determination. As a black-owned enterprise, Bomi is committed to creating a better future for all South Africans. ... With a combined wealth of experience in the mining and explosive professions, our ...
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Conventional shaft sinking by drilling and blasting was for many years the most hazardous of all mining operations. New techniques and technical developments have now made shaft construction work much safer and more efficient. Yet there is still room for further improvement. This paper describes the current state of the art and the …
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PDF | On Jan 1, 2000, Özgür SATICI published Drilling and blasting as a tunnel excavation method | Find, read and cite all the research you need on ResearchGate
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Drilling can be done from the surface or from the drift in the underground mine. A drill bit studded with small diamonds cuts a cylindrical core that is captured in the string of tubes that follows the bit. The core is retrieved and analysed to find out what is in the rock. ... Up-hole drilling and blasting leaves a rough rock surface for the ...
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The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal.
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Larry Mirabelli, senior manager at Buckley Powder Co., teamed with Bill Hissem, senior mining engineer at Construction, to deliver a presentation on drilling and blasting at the 2015 Quarry Academy hosted by Dyno Nobel and .. Mirabelli, who has more than 40 years of experience in explosives technology between …
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Improving Productivity in Pillar Blasting – HZL, Sindesar Khurd Mine (pdf 582 ... Safe and efficient bulk explosives supply Explosive product optimisation Contour blasting Drill and blast ... improvements in safety and productivity in explosives charging at the development face can be achieved with our mechanised development charging system ...
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Jimeno CL, Jimeno EL, Carcedo FJA. Drilling and Blasting of Rocks. Balkema, Rotterdam;... Bilgin N, Copur H, Balci C. Mechanical excavation in mining and civil industries. CRC press;... Ferreira PH. Mechanised mine development utilising rock cutting and boring through raise and blind boring techniques.... O. Su et al.
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In order to investigate the dynamic response and rock mass damage characteristics of cavities with different shapes under blasting loads, this paper, through …
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Read this article to learn about the blasting techniques adopted in underground and opencast mines. Blasting Techniques Adopted in Underground Mines: Drilling Patterns in Stone: Drilling patterns, also called shot-hole patterns, are named after the type of cut holes used and the principal patterns are: (1) Pyramid cut or cone cut (2) Wedge cut (3) …
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A position paper by the Minerals Council of SA, entitled People-Centred Modernisation in Mining, says mechanised drilling and blasting could extend the life of a low-grade mine with a four-year ...
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Automation and digitalisation of the drill and blast process are also key ® parts of MAXAM's R&D focus. . The company is currently engaged in the Spain-based TUÑEL. investigation project, which looks to address the competitiveness of the . drilling and blasting cycle in mining and underground works, "through the
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The Research Group focuses on the R&D works in two specific areas,safe and economical rock excavation techniques for mining and civil engineering construction projects with minimum disturbance to surrounding environments and development of new cost-effective explosives and blasting accessories for the Indian mining industries.
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The most common safety concerns and undesirable side effects in case of rock breakage by blasting are ground vibrations, flyrock, noise and air/dust pollution. Vibration, noise …
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Drilling, Charging, Blasting Productivity. ... mine operators need to become more skillful at mining thin, steep, deep and undulating seams productively and without sacing coal quality. ... improvements in safety and productivity in explosives charging at the development face can be achieved with our mechanised development charging system ...
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The conventional cut-and-fill method presented below represents a mine with steeply dipping veins that are 3.5 metres in width and 1,900 metres along strike. Access to the mine is via an 863-metre shaft. Haulage to the shaft is via rail. Stoping includes drilling and blasting with jackleg drills, slushing to ore chutes and sand filling.
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