High-Pressure Water Jets for Undersea Rock Excavation

[+] Author and Article Information
W. C. Cooley

Bethesda, Md.

L. L. Clipp

Exotech Incorporated, Rockville, Md.

J. Eng. Ind 92(2), 281-287 (May 01, 1970) (7 pages) doi:10.1115/1.3427730 History: Received July 02, 1969; Online July 15, 2010


The paper reviews past research on pulsed high-pressure water jets and their application to breaking rock. Experiments are reported showing the input energy per unit volume required to fracture various types of rock as a function of the pertinent variables. The stagnation pressure of the liquid jets was varied from 50,000 to 5 million psi. The theories of jet penetration through water and rock are compared with experimental results. The feasibility and potential advantages of using pulsed water jet equipment for ocean-floor excavation are discussed.

Copyright © 1970 by ASME
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