Steel Pipe Foundations for Deep Water

by Masanari Tominaga, (M.ASCE), General Mgr.; Civ. Engrg. & Constr. Materials Dept., Kawasaki Steel Corp., Tokyo, Japan,
Charles R. Heidengren, (M.ASCE), Manager; Civ. Engrg. Dept., Engrg. and Constr. Div., Kawasaki Steel Corp., Tokyo, Japan,


Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 3, Pg. 44-46


Document Type: Feature article

Abstract:

Four innovations are helping to make steel pipe piles more popular for foundations in deep water in Southeast Asia. Until recently steel was usually rejected for these applications, because of concern about corrosion. A relatively new polyethylene coating will, the authors predict, provide extraordinarily long steel-pile lifetimes and reduced cost. The second innovation is interlocked steel pipe pile, which meet a need for higher section modulus than sheet-piling could provide. Two pipe sections are each slit down one side of their length, and one edge of one is slid inside the slit in the other. Then the two-pipe assembly is grouted. The third innovation is on-site butt welding, making possible steel pipe piles as long as needed. The fourth provides an alternative to driving steel pipe piling from a workboat or barge, and consists of a rig mounted on piling already driven. The article briefly describes a recent port project in Southeast Asia using each of the four innovations. So far, the authors report, the innovations, all made by Japanese steel companies, have not been used in other parts of the world.

Subject Headings: Steel pipes | Pipe piles | Steel piles | Innovation | Steel | Pile foundations | Water pipelines

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