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Surface and Underground Coal Mine Equipment Population, 1982.

Authors
Pojar-MG
Source
MISSING :25 pages
Link
NIOSHTIC No.
10005248
Abstract
This Bureau of Mines report estimates the population of the principal types of machinery in use by the coal mining industry during 1982 in surface and underground mines. Estimates were arrived at using 1976 coal equipment population estimates as baseline data with modifications made for new mine development, expansion, and closure occurring during 1976-82. Estimates were broken down into 3 regions that included all 26 coal-producing states. Modifications made to the baseline data were computed using (1) actual equipment information when available and (2) equipment information hypothesized from representative generic mine models, which were predicated on mine size and mine method. Roughly half of the equipment fleet at new or expanding coal operations was known; the remainder was hypothesized. The mine models used to generate equipment information are included in this report, along with the hypothesized equipment use data. The equations and various factors used to determine the equipment adjustments for mine closings, new mine openings, and small coal mine operations are also identified.
Publication Date
19860101
Document Type
IH; Information Circular;
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Identifying No.
IC 9078
NIOSH Division
TCRC;
Source Name
MISSING
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