Rock bolts find diverse applications across various industries, contributing to the stability and safety of underground structures. Common applications include: Mining operations Rock bolts are a fundamental component of ground support in underground mining, particularly in hard rock environments. Widely used in room-and-pillar and longwall mining methods, these anchors stabilize walls and roofs by securing […]
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Common rock bolt installation methods
Mining Doc
The three most popular methods for installing rock bolts are grout or resin anchoring, mechanical anchoring, and anchoring. Depending on the site’s geology and structural needs, each approach has unique benefits. Mechanical anchoring In applications involving rock reinforcement, mechanical anchoring, also referred to as point anchoring, is a popular installation technique that offers instant support. […]
Niger to nationalise Somair uranium venture operated by France's Orano
Mining Doc
Niger’s government announced plans to nationalise the Somair uranium joint venture operated by French nuclear fuels company Orano, according to a statement read out on national television in the West African nation on Thursday. The decision is an escalation of a dispute between the Niger government and the French company, following a deterioration of relations […]
Rio Tinto IOC invests $800,000 to expand childcare offering at Lil Snowflakes daycare
Mining Doc
Rio Tinto’s Iron Ore Company of Canada (IOC) is investing $800,000 over two years to support the expansion of the Lil Snowflakes daycare in Wabush. The expansion will increase the daycare’s capacity to an estimated 116 spaces, including 86 full-time spots, with 50 spaces designated for IOC employees. These designated spaces will help support local […]
Gold prices holds steady, platinum scales over 10-year high.
Mining Doc
Gold prices held steady as investors kept an eye on the conflict between Israel and Iran, while platinum scaled its highest level since September 2014 on speculative buying. Spot gold was steady at $3,369.79 an ounce at 0955 GMT. U.S. gold futures fell 0.6% to $3,387.30. “We’re not expecting that gold prices will fall back […]
What are the limitations of using conveyor belts underground?
Mining Doc
Belt conveyors are widely used in the mining industry, both in open-cast and underground mines. They offer advantages such as rapid transport of blasted heaps from the depths to the surface, and many others. However, their use in underground mines has a number of drawbacks. Let’s explore some of them. Fire hazards Underground conveyor belts, […]
Purpose of a ventilation-on-demand (VoD) system
Mining Doc
According to Ammar Ali, Ex Engineer Intern at Freeport Indonesia with expertise in Mine Ventilation DMLZ-PB4, the VOD concept is one of the energy-saving principles in underground mine ventilation systems (can be applied to all commodities). VOD is the ability to provide air intake into underground mines to areas that need it, in other words […]
The factors that determine the final pit design in open-pit mining
Mining Doc
The final pit design in open-pit mining is a complex optimization process influenced by geological, economic, geotechnical, operational, and environmental factors. These elements collectively determine the pit’s boundaries, slope stability, profitability, and long-term viability. Below are the key determinants: Geological and resource characteristics Deposit geometry and mineralization: the ore body’s shape, depth, grade distribution, and […]
Pushbacks in mining: definition and uses
Mining Doc
Simply put, pushbacks are a sequence of controllable stages that can be exploited with the mining equipment currently in use and that can satisfy operational and geotechnical mining constraints. In the design and optimisation of open pit mines, pushbacks are extremely important. Since the underlying set of pushbacks serves as the basis for production scheduling, […]
The difference between interramp slope and overall slope angle
Mining Doc
In open-pit mining, the inter-ramp angle refers to the angle of the slope between two consecutive ramps or haul roads, encompassing multiple benches. The overall slope angle (OSA) is the angle measured from the toe of the pit wall to the crest of the highest point, encompassing all benches, ramps, and haul roads within the open pit […]