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Development of an Impact Rock Breaker Shaft Sinking System.

Authors
Phillips-SHE
Source
MISSING :87 pages
Link
NIOSHTIC No.
10002293
Abstract
The primary objective of this project was to demonstrate the feasibility of using a mechanical impact rock breaker to increase shaft sinking rates, reduce costs, and improve the safety and working conditions for shaft sinking. The specific objective was to improve the shaft sinking equipment developed during the initial phase of the project and to further develop it for sustained underground use. This report outlines the modifications that were made to the prototype rectangular shaft sinking equipment that was originally tested at Magma Copper Company's 3A shaft at San Manuel, Arizona.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
OFR 20-82
NIOSH Division
SRC;
Source Name
MISSING
State
AZ;
Performing Organization
Cement Company of America, Inc.
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