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Construction and Technical Characteristics of the Thermodrill for Under Water Operation
水中熱削孔機の構造と特性
1973
Journal of the Mining and Metallurgical Institute of Japan
水中熱削孔機の構造と特性
Preserved Fulltext
The piercing holes in the sea bed is a first stage operation on the ocean development, this creates technical difficulties, however, as many boring machines used on land are not efficient for under water operation. The authors built a special jet piercing machine or thermodrill which could operate under water efficiently. . The thermodrill operates with oxygen gas and kerosene. The piercing holes at the bottom of the sea requires high pressure of the jet stream, more than 10kg/cm2. This paper
doi:10.2473/shigentosozai1953.89.1020_89
fatcat:4c4vmodfmjaitd7zoe6abfxaoa