Mine shafts are vertical or near-vertical tunnels, which are "sunk" as a means of accessing an underground ore body, during the development of an underground mine. The shape (in plan view), dimensions and depth of mine shafts vary greatly in response to the specific needs of the mine they are part of and the geology they are sunk through.

The diagram depicts a cross section of three different kinds of mines, along with structural elements of the underground shaft and slope mines. The shaft mine has compartments for a skip hoist, elevators called cages, and service facilities such as ventilation ducts.

The figures depict steel and concrete headgears, wooden headgears, sheave wheels, mining skips, and a sketch illustrating the layout of a headgear, hoist house and mine shaft. Taken together, the figures provide visual examples of the structures and machinery used to access underground mine shafts.

Shaft mining is a form of underground mining where shafts are pushed vertically from top to bottom to excavate the ores and minerals. It is also called shaft sinking. It is best suited for concentrated minerals such as iron, coal, etc. which can …

Shaft = Vertical or almost vertical opening used for access to the mine for removal of mineral, ventilation or pumping water etc; coloured yellow in the diagram.

2022年12月19日 · Shaft mining is an excavation method used to access an underground ore body from the top down. The term "shaft" refers to the vertical tunnels sunk underground for mining and engineering projects. When the opening starts on the surface, the resulting tunnel is …

Download scientific diagram | Underground mining plant main components related to the shaft and hoist. from publication: Fault tree analysis and risk mitigation strategies for mine hoists |...

A rectangular shaft sunk in recent years is the main shaft at Mochia Magra Mines, Zawar, Rajasthan (Hindustan Zinc Limited). It is of 5.2 m x 3.8 m in cross-section, vertical, 321 m deep from