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An Abrasive Water Jet Rock Drill.

Authors
Savanick-GA; Krawza-WG
Source
Proc 4th U S Water Jet Conf Berkeley California 1987 Aug; :129-132
Link
NIOSHTIC No.
10006086
Abstract
This paper describes an abrasive water jet drill incorporating a collimator, jet deflectors, and an unpressurized swivel. The drill, which utilizes only commonly used pumps, hoses, fittings, and sandblasting abrasives, can drill hard rock such as 73,000 psi compressive strength quartzite with 10,000 psi water pressure. Holes can be collared at any angle or chambered, and drilling can be done through fractured material such as rubble or loose rock in gob areas of mines. Also, because the water jet drill does not physically make contact with the rock, it can be built of lighter materials than conventional drills.
Publication Date
19870801
Document Type
OP;
Fiscal Year
1987
NTIS Accession No.
NTIS Price
Identifying No.
OP 6-88
Source Name
Proc. 4th U.S. Water Jet Conf, Berkeley, California, Aug. 26-28, 1987. ASME, New York, 1987, PP. 129-132
State
CA; NY;
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