A Fail-Safe Subaqueous Concrete Sewer

by Gerald G. Emerson, (M.ASCE), Engrg. Mgr.; Southern California Div., Ameron Pipe Products Group, El Monte, Calif.,

Serial Information: Civil Engineering—ASCE, 1975, Vol. 45, Issue 9, Pg. 77-78

Document Type: Feature article


Describes the design and installation of a unique, tri-gasketed 87-in. (2210 mm) diameter reinforced concrete sewer force main. The total system is approximately 14,000 ft (4,300 m) long, about 10,000 ft (3,000 m) of which was designed for burial in trench condition 65 ft (20 m) under San Diego Bay, Calif. A tri-gasket concept of design provides protection for embedded steel joint rings in sea water environments. Tri-gasket design also provides a novel and efficient means for making the pipe joint by application of negative pressure through an orifice in the area.

Subject Headings: Structural safety | Concrete | Sewers | Reinforced concrete | Pressure pipes | Trenches | Bays | Conceptual design | California | United States

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