• Underground mining

    refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds. In contrast soft rock mining refers to excavation of softer minerals such as salt, coal, or oil sands.....

  • Construction of dams

    Among the ancient underground tunnels there to meet the needs of irrigation and drainage, as well as the development of modern civilization recommends the creation and evolution of these types of structures. Today, we have several categories of underground structures, if one refers to its embodiment as the cavity, so that if one refers to as their object the tunnel communication pipe and that galleries a secondary goal in large structures such as highway or dam, with the need to improve the technical means digging helped develop the realization of tunnels with sections and longer lengths..

  • tunnel

    A tunnel is an underground gallery giving passage to a communication channel (railway, canal, road, footpath). Tunnels are related to their construction major hydraulic structures underground, such as aqueducts, sewers and outfalls for either the supply or the drainage of the major centers and some lines set up in conjunction with dams and hydro-electric plants....

  • Surface mining

    is a method of mining used to extract minerals and metals which are near the surface of the Earth. There are three basic types of surface mining: open pit mining, strip mining, and quarry mining. These methods are much more economical than underground mining, yet they can have a more significant impact on the surrounding environment unless efforts are taken to reclaim the land....

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    النجاح لا يحتاج الى كثير من العلم و لكنه يحتاج الى الحكمة.

  • What is the Qoran?

    What are your idea about Islam and Qoran?

UCIL to resume Mining operations at Jaduguda Mine

The Uranium Corporation of India Limited (UCIL) is planning to resume work at its Jaduguda mines early next year. 

In a meeting held on December 27, the UCIL board passed a resolution for "taking the matter of resumption at the highest levels early next year". 

"UCIL expects to resolve all pending issues, related to resumption of mining at Jaduguda, by the end of this year," UCIL spokesperson Stanley Hembrem said, adding that all hopes are pinned on 2017. 

Mining work at Jaduguda has been under suspension since September 2014, following directives from the Union mines ministry that called for halting mining work that was being carried under deemed extension. 

The central PSU has since been pursuing the state forest and environment department to get the green signal to resume work.

Hembrem further confirmed that documents pertaining to mining resumption are presently in the possession of the central agencies, after the state forest department completed the work on its part.

Jaduguda mine situated about 50km from the district headquarters, which has huge deposits of uranium, is nearly 3,000 feet deep and produced 800 tonnes of ore before its closure.

"It is true that Jaduguda has a rich deposit of ore but we need to make sure we make up for the production loss," Hembrem said.

The mines located in the vicinity of UCIL are Turamdih, Bhatin, Narwa, Musabani, Ichra, Bandurang, Bagjata and Mohuldih (the only mine located in adjoining Seraikela).

Caterpillar Plans to Sell Underground-Mining Equipment Lines


Caterpillar Inc. is retreating from the slumping coal industry, saying it plans to put its equipment lines for underground mines up for sale and lay off workers.

The Peoria, Ill., company said Thursday it will cut the workforce at its Houston, Pa., plant by about 155 jobs and will consider closing the plant if a buyer can’t be found. The plant produces a variety of coal-harvesting equipment and hauling vehicles and gear used in underground mines.

About 40 jobs also will be cut from a mining-equipment plant in Denison, Texas, where drills are made for underground mines. Caterpillar said it will stop taking orders for the for coal-mining equipment made at the Houston and Denison plants but will continue to support equipment already in use.

Demand for coal in the U.S. has fallen sharply in recent years as stricter environmental standards and low prices for natural gas make coal less attractive to burn in domestic power-generating plants. Caterpillar acquired the underground equipment lines as part of its $8 billion-plus purchase in 2011 of mining equipment company Bucyrus International.

“Caterpillar remains committed to an extensive mining-product portfolio,” said Denise Johnson, president of the mining-equipment business. “We firmly believe mining is an attractive long-term industry. At the same time, we continue to manage through the longest down-cycle in our history.”

Caterpillar is expected to log its fourth-straight year of lower sales in 2016. The mining-equipment business has been among the company’s weakest units recently amid slumping prices for mined commodities and reduced investments in mine expansions and new equipment. Caterpillar’s mining unit lost $163 million in the second quarter as sales dropped 29% during the quarter from a year earlier.

Caterpillar also announced it will revamp its plant in Winston-Salem, N.C. The plant has been producing powertrain components for giant trucks used in surface mines. But slumping demand for the trucks has left the Winston-Salem plant, as well as a plant in Decatur, Ill., where the trucks are assembled, severely underused in recent years.

The company said it will move the component assembly work to Decatur and repurpose the Winston-Salem plant for warehousing, machining or fabrication operations for its railroad-equipment business, Progress Rail. The Winston-Salem plant was opened in 2011 as part of a push by Caterpillar to expand production capacity, particularly for big mining trucks. But demand for the trucks began dropping shortly after the plant opened.

Newmont Mining Selling Indonasian Mine for $1.3 Billion

An aerial view of Bitu Hijau Open pit Copper and Gold mine.

U.S. gold producer Newmont Mining Corp. said Thursday that it would sell its 48.5% economic interest in the operator of the Batu Hijau copper and gold mine in Indonesia to local company PT Amman Mineral Internasional for $1.3 billion.

The announcement came as Indonesian-listed oil and gas company PT Medco Energi Internasional Tbk said it had acquired a controlling stake in PT Amman for $2.6 billion.

A group of Indonesian investors led by Medco had earlier expressed interest in purchasing as much as 76% of the mine operator, PT Newmont Nusa Tenggara. Medco said Thursday that it would join forces with an investment firm led by banker Agus Projosasmito and receive funding for the purchase from Indonesia’s three largest state-owned banks.

Japan’s Sumitomo Corp., Newmont’s partner in Newmont Nusa Tenggara, has also agreed to sell its ownership stake to PT Amman.

Newmont said the sale of its stake at “fair value aligned with its strategic priorities to lower debt, fund highest margin projects and create value for shareholders.”

“Our goal is to build a portfolio of long-life, low-cost assets with the technical, social and political risks we are well-equipped to manage,” Newmont Chief Executive Gary Goldberg said in a conference call to discuss the transaction, noting that earlier divestments have lowered risk.

The sale will involve a closing payment of $920 million and contingent payments of up to $403 million, Newmont said. Globally, Newmont has gained $1.9 billion from sales of noncore assets since 2013.

The latest deal, which is expected to close in the third quarter, comes as miners world-wide are re-evaluating their assets, having been hit by a slump in commodities prices. In early June, mining giant BHP Billiton Ltd. agreed to sell its 75% interest in Indonesia’s IndoMet Coal to local producer PT Alam Tri Abadi, in a move to pursue other growth options that BHP said were more attractive for future investment.

Colorado-based Newmont and Sumitomo operate the Batu Hijau copper and gold mine on the island of Sumbawa in Western Indonesia.

The mine—one of Indonesia’s largest copper deposits—has been a largely profitable venture for Newmont since it started commercial operations there in 2000.

Keeping production up, however, will require a hefty investment in the next phase of development at a time when Newmont has been hit by increasingly burdensome regulation and uncertainty about the future of its operating contract.

Jorge Beristain, a metals and mining analyst at Deutsche Bank, estimated that around $1.6 billion is needed for the next stage of expansion.

The company said its debt burden would “improve significantly” without Batu Hijau.

Some analysts had earlier said Newmont’s efforts to sell off its stake also suggests concerns about the long-term outlook for the Indonesian mining industry.

Vast deposits of copper, nickel and coal have lured foreign miners to Indonesia for decades and mining has contributed greatly to economic growth in the country. But growing nationalism and the desire among some officials to grab back control of the country’s natural resources has raised risks.

Rules issued in recent years have pushed foreign miners to divest majority stakes, pay higher taxes and royalties and invest in processing unrefined ores. By law, miners are also required to eventually shift from long-term contracts of work to a licensing system. Analysts and miners say the rules make little sense at a time when miners globally are re-evaluating their investments and Indonesia is trying to draw in more foreign capital.


After the rule banning the export of unrefined ores took effect, Newmont ceased exports and later declared force majeure on existing contracts. To receive an export permit—a biannual process—the U.S. Company has had to show it is making progress on refining or stop its shipments. Delays in shipments in 2015 caused Newmont’s fourth-quarter revenue to fall 10% from a year earlier.

BHP Billiton and SaskPower Establish Carbon Capture and Storage Knowledge Centre


BHP Billiton and Saskatchewan-based electricity provider SaskPower have signed an agreement to establish the BHP Billiton SaskPower Carbon Capture Knowledge Centre to help advance Carbon Capture and Storage (CCS) as a means of managing greenhouse gas emissions.

BHP Billiton will contribute C$4 million per year for five years to fund the Knowledge Centre, which will operate as a Not-For-Profit Canadian Corporation in Regina, Saskatchewan.

BHP Billiton Chief Commercial Officer, Dean Dalla Valle, said accelerating the development and deployment of low-emissions technologies was vital in addressing the challenges posed by climate change.

“By enhancing global access to the data, information and lessons learned from SaskPower’s unique Boundary Dam facility – the first power project to successfully integrate CCS – we aim to stimulate broader deployment of the technology,” Mr Dalla Valle said.

Boundary DAM is the world’s first commercial scale carbon capture and storage process on a coal fired power plant.

SaskPower President and CEO Mike Marsh said he was pleased to be able to partner with BHP Billiton through the Knowledge Centre.

“Talks between our two companies began at a United Nations climate change conference in Peru in late 2014. Just over one year later, we are celebrating a ground-breaking Knowledge Centre that will offer the world a vehicle to advance the technology and commercial viability of CCS,” Mr Marsh said.

In welcoming the agreement Premier of Saskatchewan Brad Wall said Saskatchewan continued to be a pioneer in carbon capture and storage technology.

“SaskPower’s partnership with BHP Billiton will allow us to share the benefits of CCS with the world while continuing to reduce carbon emissions here at home,” Premier Wall said.

Under the agreement, BHP Billiton and SaskPower will each appoint two directors to the Board of the Knowledge Centre and another three independent directors will be appointed collectively.

It is intended that the Knowledge Centre will help inform a range of interested parties, including governments, universities, industry and research organizations, on practical considerations in the development and use of CCS.  It will be staffed by people with appropriate knowledge of CCS and Boundary Dam, either seconded from SaskPower or employed directly by the Knowledge Centre.


Credits: BHP Billiton

Alcoa Mining celebrates one billion tonnes of Bauxite production

President Alcoa Mining Garret Dixon (left) and Huntly mine’s Jim Blacklock celebrating the one billionth milestone with mining employees. Jim is Alcoa’s longest serving mining employee, having worked for the company for 44 years.

Alcoa’s workforce is celebrating an historic milestone after achieving one billion tonnes of bauxite mined, following 53 years of operation in Western Australia.

President Alcoa Mining Garret Dixon saluted the hard work and tireless efforts of past and present employees who have worked across its mining operations at Jarrahdale, Huntly and Willowdale.

“We’re very proud of this achievement and also our decades-long, internationally recognised land rehabilitation program – one of the most critical parts of the mining process which sees jarrah forest ecosystems restored,” said Mr Dixon.

Mr Dixon said Alcoa had built a world-class integrated mining, refining and smelting system in Australia with a strong sustainability record.

“In Australia, our bauxite is used to produce alumina to supply approximately eight per cent of world alumina demand and we make alumina as low as one third of the greenhouse footprint per tonne of product of some of our Asian competitors,” he said.

Alcoa’s value-add refining and smelting businesses in Australia meant the company has made a significant economic and social contribution. Adding to this, the mining business will realise the opportunity to export bauxite into new markets in 2016.

“Alcoa injects billions of dollars each year into Peel and South-West communities, the State and the nation. In Western Australia alone, we employ approximately 4,000 people and inject more than $2.2 billion per annum in local procurement and payroll. We also invest millions of dollars and thousands of volunteering hours each year into local community groups and projects.”

“We thank all our local communities, suppliers, contractors and government stakeholders for their support.”

The company celebrated its success with past and present employees, key stakeholders and the Hon Nigel Hallett MLC, representing Premier Barnett, at a special event in Mandurah on Thursday. Huntly mine’s Jim Blacklock, Alcoa’s longest serving mining employee, also joined the celebrations.

“Since joining the company in December 1971 (44 years ago), I’ve seen huge change,” said Mr Blacklock.

“The automation of processes and the volume of production are what impress me the most. But by far it is the people who have given me the greatest enjoyment; they’re brilliant,” he said.

Alcoa named a mining road after Jim Blacklock in recognition of his commitment to the company. Other long-serving employees have had roads named in their honour too, with Alcoa’s first WA Manager of Mines, Jim Langford, having the popular Langford Park, located at Alcoa’s rehabilitated Jarrahdale mine site, named after him. Langford Park opened in 1975 and is a popular family picnic spot with mountain bike and bridle trails.



Credits: Alcoa

Luxembourg aims to be a global leader in asteroid mining

Artist’s impression of an asteroid near Earth.
Luxembourg has declared its intention to blaze a trail in asteroid mining in the hope that it will reap lucrative returns.

The small country’s government said on Wednesday it would invest in space mining companies and establish a legal framework to assure those engaging in the activity that they can keep the fruit of their toils.

The 1967 outer space treaty appeared to designate space as public property, meaning no one could claim sovereignty over asteroids. But companies have recently challenged that interpretation, and in November Barack Obama signed a law enabling US citizens to obtain their own asteroids, mine them and keep what they find.
Now Luxembourg has staked its claim, hoping it can become a European hub for the futurist activity. Its declared aims are to stimulate economic growth on Earth and offer new horizons in space exploration.

The country’s deputy prime minister, Étienne Schneider, said: “Our aim is to open access to a wealth of previously unexplored mineral resources, on lifeless rocks hurtling through space, without damaging natural habitats.

“We will support the long-term economic development of new, innovative activities in the space and satellite industries as a key high-tech sector for Luxembourg. At first, our aim is to carry out research in this area, which at a later stage can lead to more concrete activities in space.”

Asteroids vary in their composition, but some are rich in platinum-group materials and other highly valued metals.

Luxembourg, with a population of just over 540,000, punches above its weight in the space sector as home to the satellite operator SES.

Two US companies, Deep Space Industries and Planetary Resources, are in a race to be the first to commercially mine an asteroid. They both welcomed Luxembourg’s announcement.

Jean-Jacques Dordain, former director general of the European Space Agency (ESA) and adviser to Luxembourg’s government on the project, said: “This initiative is a clear demonstration that Europeans are innovative and able to take risks when the stakes are high.

“While futuristic, the project is based on solid grounds, ie technical prowess that already exists in Europe and around the world.”

Credits: The Guardian

The biggest issues facing Africa's largest mining gathering – Indaba 2016


On Monday more than 7,000 delegates from 100 countries and territories across six continents will descend on Cape Town for the biggest mining gathering on the planet in one of arguably the toughest years in the history of African mining.

The continent is facing economic uncertainty, doubts over mining legislation and regulation, power cuts and looming strikes. Even the optimists, that is the government of South Africa, admit there could be as many as 32,000 jobs under threat in the country’s mines.

This would be a severe blow to an industry, that despite several setbacks in the last five years, is still top dog in Africa employing 400,000 people. Pay talks are expected in the platinum industry later this year, with the dominant union AMCU, that could lead to a strike costing billions and thousands of jobs. The union led a five-month strike in platinum two years ago.

AMCU will make its debut at this year’s indaba and is likely to arrive with characteristic uncompromising views on mining that could unsettle one or two foreign investors. 

“We feel it is not ok for corporations to come into our country make decisions about what is happening in our country and then leave,” says Manzini Zungu, the spokesman for AMCU.  

One of the highlights of this year’s gathering is that South Africa’s new mining minister Mosebenzi Zwane will open proceedings and give the mining world a hint of how his government plans to stem the flow of capital out.

For years a pall of gloom has formed over the Mining Indaba in Cape Town with analysts and industry insiders tutting about how pessimistic foreign investors are and how there are more supply companies and fewer mining companies every year.

“The problem is South Africa is sending out messages that it is closed for business,” one delegate and former mine boss said to me in Cape Town last year.

Infrastructure is also a worry. From  Zambia to Mpumalanga mines are suffering power cuts and a lack of roads, water and rails.

On the other side of the coin, infrastructure, along with the support for new mining projects, is the focus of the Mining Indaba with the aim of prising billions out of foreign investors.

The organizers are upbeat even if the mining industry is not. They claim billions of dollars in investment have been channelled in to African mining, through the indaba, creating 5,000 jobs since 2007.It claims 2,300 international companies will have delegates at this year’s gathering.

The Johannesburg Stock Exchange, clearly caught up in the sustained enthusiasm of the organizers, will be there in force in the hope of recruiting new listings. Of the 391 companies listed on the JSE, 68 are from metals mining and resources. The fact that the JSE wants more, at the very least, is a vote of confidence for a very battered industry that has seen billions in value of resources companies wiped off the board in the last few years.

When the talking starts in Cape Town there are likely to be more than a few sparks. One of the first speakers on Monday will be the former Nigerian Reserve Bank governor Lamido Sanusi, the man whose unflinching stance against corruption and his own government in 2011 earned him Forbes Africa Person of the Year award. The Emir of Kano, who rarely minces his words, will speak as chairman of Black Rhino Group , an energy infrastructure company with investments across Africa.

Other vociferous mining bigwigs expected as speakers will be Ben Magara, the CEO of Lonmin, Mark Cutifani, the CEO of Anglo American, Tom Albanese, the head of Vendanta Group, Robert Friedland, the founder of Ivanhoe Resources and Mark Bristow, the CEO of Randgold Resources.

There will be plenty of talk at the Mining Indaba, in Cape Town’s vast International Trade Centre, but talk can be cheap. If mining is to remain a major industry on this continent serious investment and hard work is needed this year.

More than 20 years ago the Mining Indaba was launched in one room at a Cape Town hotel. The industry must be careful not to allow the industry to shrink back into one hotel room in 20 years’ time.

Credits: Chris Bishop, CNBCAfrica