National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

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Analysis of Large Scale Non-Coal Underground Mining Methods.

PB234555

Publication Date	1974
Page Count	620
Abstract	The report identifies problem areas requiring research, identifies potential innovations to improve technology, and provides a basis for anticipating future needs of the large scale noncoal mining industry. It contains statistics on underground mining methods and includes information on the equipment and systems used, and costs and productivity. Particular emphasis is placed on current practices and problems, needed technological improvements, existing or potential environmental conflicts, and possible modifications that will assist in meeting projected national mineral needs. Current practices for various mining methods, including block caving, room and pillar, vein mining, in situ mining, and variations of these methods are described.
Keywords	Underground mining Mining engineering Mineral deposits Excavating equipment Rock excavation Mines(Excavations) Room and pillar mining Caving mining Ore sampling Drill core analysis Underground supporting Blasting Mine shafts Rock drilling Stope mining Rock bolts Rock mechanics Requirements Statistical data Vein mining In situ mining
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 50D - Soil & Rock Mechanics
Corporate Authors	Dravo Corp., Pittsburgh, Pa. Eastern Construction Div.; Burea of Mines, Washington, D.C.
Document Type	Technical Report
Title Note	Summary rept. 30 Jun 72-15 Jan 74.
NTIS Issue Number	197422
Contract Number	S0122059

Analysis of Large Scale Non-Coal Underground Mining Methods.

Analysis of Large Scale Non-Coal Underground Mining Methods.
PB234555

Publication Date	1974
Page Count	620
Abstract	The report identifies problem areas requiring research, identifies potential innovations to improve technology, and provides a basis for anticipating future needs of the large scale noncoal mining industry. It contains statistics on underground mining methods and includes information on the equipment and systems used, and costs and productivity. Particular emphasis is placed on current practices and problems, needed technological improvements, existing or potential environmental conflicts, and possible modifications that will assist in meeting projected national mineral needs. Current practices for various mining methods, including block caving, room and pillar, vein mining, in situ mining, and variations of these methods are described.
Keywords	Underground mining Mining engineering Mineral deposits Excavating equipment Rock excavation Mines(Excavations) Room and pillar mining Caving mining Ore sampling Drill core analysis Underground supporting Blasting Mine shafts Rock drilling Stope mining Rock bolts Rock mechanics Requirements Statistical data Vein mining In situ mining
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 50D - Soil & Rock Mechanics
Corporate Authors	Dravo Corp., Pittsburgh, Pa. Eastern Construction Div.; Burea of Mines, Washington, D.C.
Document Type	Technical Report
Title Note	Summary rept. 30 Jun 72-15 Jan 74.
NTIS Issue Number	197422
Contract Number	S0122059