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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 9.5-millimetre (3 ⁄ 8 in) thick boiler plate with a diameter of 910 ...
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".
The shafts of the three concessions established in the mid-19th century. The Ronchamp colliery shafts (French, Les puits des houillères de Ronchamp) are a series of collieries undertaken by the various mining companies in the Ronchamp coalfield between the early 19th and mid-20th centuries at Ronchamp, Champagney, and Magny-Danigon, in the Haute-Saône département of France.
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.
Relatives of miners and community members wait near an opening to the mine shaft for artisanal miners underground to resurface in Stilfontein on November 13, 2024. - Emmanuel Croset/AFP/Getty Images
The Saint-Charles shaft (or No. 8 shaft) is one of the main collieries of the Ronchamp coal mine. It is located in Ronchamp , Haute-Saône , in eastern France. In the second half of the nineteenth century, this shaft made it possible to mine large coal seams, contributing to the company's golden age.
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