Shaft mining or shaft sinking is the action of excavating a mine shaft from the top down, where there is initially no access to the bottom. [1] Shallow shafts, typically sunk for civil engineering projects, differ …

Jun 30, 2024 · Shaft sinking is a fundamental and intricate process in the mining industry, essential for establishing vertical or inclined pathways to access underground mineral deposits.

Over the past decade there has been a lot of successful innovation in shaft sinking, applying developments in automation and unmanned operation to reduce costs and increase rates of drilling.

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The team was able to boast the sinking of both shafts without a lost-time accident being recorded in either of the shaft barrels. The shaft system was designed to produce 3 million tonnes of run-of-mine …

The development of dynamite and pneumatic drills led to sinking methods that are still in use for the majority of shafts. These are usually rectangular with two or more hoisting compartments and …

Feb 17, 2021 · It describes the trona deposit, formations penetrated by the No. 3 shaft, and methods of breaking and loading the rock and placing concrete shaft lining while sinking it.

This method uses hydraulic jacking rams from the surface pressing rings downwards as continuous excavation occurs from the middle of the shaft. The caisson technique is a preferred method for …

Sinking a shaft is challenging and crucial for mining, and our dedicated experts can tackle any ground project safely and efficiently. We work with clients to meet schedules, and we do it with an industry …

Our engineering teams continuously strive to bring new benchmark sinking applications to the forefront throughout the world. Recent developments focus on making our systems safer, more productive …