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

Bureau of Mines introduces new hardrock cutting concept.

Authors
Schmidt-RL; Morrell-RJ; Larson-DA
Source
Skillings' Min Rev 1987 Nov; 76(45):4-10
NIOSHTIC No.
10005911
Abstract
This paper describes an investigation to determine a means to mechanically extract hard rock that would be more efficient and better lend itself to modern remote control methods than the currently favored drill-blast technique. Various existing equipment such as tunnel boring machines, roadheaders, continuous coal miners, raise borers, impactors, saws, ripper cutters, and rotary drills were compared, and it was found that only ripper cutting could fragment hard rock economically enough to compete with drill- blasting.
Publication Date
19871101
Document Type
OP; Journal Article
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
OP 121-87
Issue of Publication
45
ISSN
0037-6329
NIOSH Division
TCRC
Source Name
Skillings' Mining Review
State
MN
TOP