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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 ...
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.
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 Hottinguer coal mine was one of the main collieries of the Épinac coal mine.The buildings, raised between 1872 and 1876, housed a revolutionary atmospheric extraction system: a piston moving in a 558 m-high tube, machined in Le Creusot (an original technique by engineer Zulma Blanchet), rather than by traditional cables, which at the time were unable to descend to such depths (over 600 m ...
Shortly before, in 1982, an open-air museum had been set up on the surface site: that closed in 1996. The current visitor mine museum opened to 170m in 2007 and to the full 320m in 2008. [2] Technically the early mine had to contend with sand and the Saara tectonic fault. The first shaft, the 1856 Barbara shaft was abandoned at 30m.
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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.