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Failure of Prestressed Concrete Embedded Cylinder Pipe

by William L. C. Knowles, MacLaren Engineers Inc, Canada,



Document Type: Proceeding Paper

Part of: Pipeline Design and Installation

Abstract:

In 1964, the Ontario Provincial Government undertook to supply water to the City of London (current population 300,000). The supply source was from Lake Huron near Grand Bend, Ontario while London is located some 30 miles (48 km) inland. The supply pipeline is 48 inches (1200 mm) in diameter. Maximum design pressure is 250 psi (1725 kPa). The pipe used was prestressed concrete pressure pipe (AWWA C-301) embedded cylinder-type having a core thickness of 5 inches (125 mm) and a 1-inch (25 mm) coating thickness over the prestressing wire. The pipeline was constructed over the period from August 1965 to July 1966 and was placed in operation in mid-1967 when the water treatment plant at Lake Huron was commissioned.

Subject Headings: Concrete cylinder pipes | Pressure pipes | Prestressing | Concrete pipes | Prestressed concrete | Failure analysis | Structural failures | Canada | Ontario | London | United Kingdom | Europe | Lake Huron | Great Lakes

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