Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

New type of boring machines lead to high-speed coal mine development.

Authors
Crocker-TJ; Corwine-J
Source
Coal Age 1975 Jul; 80(8):106-111
NIOSHTIC No.
10001761
Abstract
In coal mine development, large numbers of entries have to be driven and shafts sunk to meet ventilation requirements and provide access for men and materials. Conventional methods of shaft and entry development are slow, inefficient, dangerous, and as a consequence, expensive. The Bureau of Mines has embarked on a high-speed coal mine development program with three specific goals: (1) to reduce entry development time by 50 pct with a corresponding cost reduction of 25 pct, (2) to reduce mine shaft construction time by a factor of four with direct cost savings of 15 pct, and (3) to encourage the coal industry to use the technology developed under the program.
Keywords
Mining-industry; Underground-mining; Mine-shafts
CODEN
COLAA7
Publication Date
19750701
Document Type
OP; Journal Article
Fiscal Year
1975
NTIS Accession No.
NTIS Price
Identifying No.
OP 75-75
Issue of Publication
8
ISSN
0009-9910
Source Name
Coal Age
TOP