Computer-assisted mine design procedures for longwall mining



Publisher: U.S. Department of the Interior, Bureau of Mines in Pgh. [i.e. Pittsburgh] Pa

Written in English
Published: Pages: 38 Downloads: 723
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Subjects:

  • Longwall mining -- Data processing.

Edition Notes

Bibliography: p. 33-36.

Statementby N.P. Kripakov ... [et al.].
SeriesReport of investigations ;, 9172, Report of investigations (United States. Bureau of Mines) ;, 9172.
ContributionsKripakov, Nicholas P.
Classifications
LC ClassificationsTN23 .U43 no. 9172, TN275 .U43 no. 9172
The Physical Object
Paginationii, 38 p. :
Number of Pages38
ID Numbers
Open LibraryOL2493490M
LC Control Number87600435

A computer-assisted continuous mining machine has been tested by the U.S. Bureau of Mines in an underground coal mine in Pennsylvania. Competition from Other Fuels, Electricity Generating Technologies Total U.S. demand for coal is affected largely by the number of coal-burning plants operated by electric utilities. Develop new or improved designs for vehicle structural members, engines, transmissions, or other vehicle systems, using computer-assisted design technology. Direct building, modification, or testing of vehicle or components. Biochemical Engineers Develop usable, tangible products, using knowledge of biology, chemistry, or engineering. Operate machinery--such as longwall shears, plows, and cutting machines--to cut or channel along the face or seams of coal mines, stone quarries, or other mining surfaces to facilitate blasting, separating, or removing minerals or materials from mines or from the earth's surface. If a ropewill break under a load of lbs., and it is carrying a load of lbs., its factor of safety is divided by which equals3.[mining-1] Fall - A mass of roof rock or coal which has fallen in anypart of a mine.[mining-1] Fan, auxiliary - A small, portable fan used to supplementthe ventilation of an individual working place.

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Computer-assisted mine design procedures for longwall mining (OCoLC) Online version: Computer-assisted mine design procedures for longwall mining (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Nicholas P Kripakov; United States.

Bureau of Mines. COMPUTER-ASSISTED MINE DESIGN PROCEDURES FOR LONGWALL MINING By N. Kripakoy,1 L A. Beckett,1 D. Donato,1 and J. Durr2 ABSTRACT The Bureau of Mines has developed a unique new mine design procedure to determine the changing static load distributions imposed on under­ ground support structures during the mining cycle.

Computer-assisted Mine Design Procedures for Longwall Mining. The displacement-discontinuity program calculates expected loadings for mine structures affected by the mining cycle and/or overlying or underlying seams. Pseudoelastic finite-element analysis using a yield-factor approach determines the stability of coal pillars by simulating.

@article{osti_, title = {Application of numerical simulation using a progressive failure approach to underground-coal-mine stability analysis}, author = {Ash, N.F.}, abstractNote = {Stability in underground coal mines is of major concern to the coal industry due to its effect on both safety and productivity.

Consequently, this can have a great influence on the design of. Mining, Longwall; Longwall method of mining; Filed under: Longwall mining. Longwall gate road roof instability and methods of control in the lower Kittanning Coalbed of Central Pennsylvania /, by Eric R.

Bauer, E. Krupa, and Jeffrey M. Listak (page images at HathiTrust) Experimental longwall mining in a Pennsylvania anthracite mine (in two.

Computer-assisted mine design procedures for longwall mining. Published Date: Series: "The Bureau of Mines has developed a unique new mine design procedure to detemine the changing static load distributions imposed on underground support structures during the mining cycle.

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