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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 greatly in execution method from deep shafts, typically sunk for mining projects.
To achieve the first goal, five steam pumps with a total capacity of 79.29 m 3 /min were used – three drainage machines at the drainage shafts: Schmidt I [75] [76] (sinking began in 1855, [74] drainage machine put into use in 1858, [77] in 1859 riveted pipes made of 3 ⁄ 8-inch (9.5 mm) thick boiler plate with a diameter of 36 inches (910 mm ...
Shaft sinking was the most dangerous and most difficult form of mining in ancient Rome. Due to its high cost, it was only used to collect the most valuable metals in Roman society. This technique involved digging tunnels underground, allowing workers to extract the ore.
The Magny shaft is one of the main shafts of the Ronchamp colliery, located in the commune of Magny-Danigon, in the French department of Haute-Saône and the Bourgogne-Franche-Comté region. With a depth of 694 meters, it was the deepest mine shaft in France when it was commissioned in 1878.
The drilling of the shafts began in October 1783. 72 miners were involved in the work. After 9 months of intensive work, on July 16, 1784, rich lead and silver ore deposit was found at a depth of 18 m in "Rudolfina" shaft. Two days later a similar discovery was made in the shafts "Łyszczonek" and "Opal".
Using traditional shaft-sinking techniques and the labour of mining friends Alf Molyneux and Jimmy Crooks, the shaft was sunk to a depth of 20 feet (6.1 m) and lined with brick. The work had been undertaken without planning permission, and, when the council eventually found out what was happening, they insisted he apply for planning permission ...
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Headframe of the #1 Shaft at Oyuu Tolgoi. A steel headframe is less expensive than a concrete headframe; the tallest steel headframe measures 87 m. [4] Steel headframes are more adaptable to modifications (making any construction errors easier to remedy), and are considerably lighter, requiring less substantial foundations.