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RESEARCH PAPERS: Ocean Engineering

Characteristics of Digging Depth With Air-Bubble Water Jet

[+] Author and Article Information
M. Ohnishi, T. Miyamoto, R. Arioka

Outside Plant Development Division, Ibaraki Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Tokai, Ibaraki, Japan

J. Energy Resour. Technol 106(4), 533-538 (Dec 01, 1984) (6 pages) doi:10.1115/1.3231119 History: Received July 15, 1983; Revised December 13, 1983; Online October 22, 2009

Abstract

For burying submarine cables under a seabed by a water jet cable burier, it is important to improve digging depth of water jet. This paper discusses digging properties with air-bubble water jet, and clarifies the relation between digging depth and water jet parameters such as traverse speed of nozzle V n (m/s), air content ratio C , and jet momentum per unit time M (N). It is found from experiment results that the digging depth H* (m) is represented by

H* = (1 + 0.26C0.65) (10.31 − 4.54Vn)
   M0.44×10−2.

Copyright © 1984 by ASME
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