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Feasibility of Using Large Tractor Dozers in the Surface Mining of Coal and the Reclamation of Mined Areas.

Authors
Rush-ES; Willoughby-WE
Source
NTIS: Ad/a022-852 Available for Reference At Bureau Libraries :268 pages
Link
NIOSHTIC No.
10001853
Abstract
Estimates of earthmoving efficiency and owning and operating costs were based on available data for existing smaller dozers. Currently used machines evaluated included seven tracked dozers and six wheeled dozers. The study was patterned after engineering models developed for evaluation of military ground vehicles. Three tracked and three wheeled larger dozer concepts were evaluated. Electric drive systems would supply power to electric motors at each sprocket or wheel. Other characteristics and dimensions were scaled up from existing machines. For equal operating conditions the large tractor dozer could increase earthmoving rates of currently available 500- to 700-hp dozers by an estimated 500 pct, and could reduce earthmoving costs from $0.02 to about $0.015 Per loose cubic yard moved 50 feet.
Publication Date
19750101
Document Type
CP; Final Contract Report;
Fiscal Year
1975
NTIS Accession No.
AD/A022-852
NTIS Price
A13
Identifying No.
OFR 131-76
NIOSH Division
SRC;
Source Name
NTIS: Ad/a022-852 Available for Reference At Bureau Libraries
Performing Organization
U.S. Army Engineers
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