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Mine management: Author: Hall, Robert Dawson, 1872- [from old catalog] Software used: Internet Archive: Conversion program: Recoded by LuraDocument PDF v2.68: Encrypted: no: Page size: 668 x 1063 pts: Version of PDF format: 1.5
Upload file; Search. Search. Appearance. ... Download as PDF; Printable version; In other projects ... (explosive mass) Blast AT Mine: 2a – Mine Explosion pressure ...
Rock blasting in Finland. Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction. The result of rock blasting is often known as a rock cut.
The Army's MMPV executive summary states: "The Medium Mine Protected Vehicle (MMPV) is a blast protected, wheeled vehicle platform that will operate in explosive hazardous environments to support emerging Future Engineer Force (FEF) Clearance Companies in route and area clearance operations, Explosive Hazards Teams in explosive hazards ...
However, this can be extracted at a later stage (see retreat mining). [10] Blast mining or conventional mining, is an older practice that uses explosives such as dynamite to break up the coal seam, after which the coal is gathered and loaded onto shuttle cars or conveyors for removal to a central loading area. This process consists of a series ...
An electrical blasting cap for triggering the mine was inserted through a small hole in the side. Internally the mine consisted of a layer of 12-ounce (340 g) of C-3 explosive (the forerunner of C-4 explosive) in front of which was laid an array of 0.25-inch (6.4 mm) steel cubes
The Oklahoma Legislature abolished the State Mining Board and replaced it with the Oklahoma Mining Commission in 1985. The Commission is a nine-member board that serves as the governing body of the Department and is responsible for approving the Department's budget, establishing policy and appointing the Director of the Department.
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.