Field Experiment on Behavior of Continuous Water Main with a Miter Bend

by Nobuhisa Suzuki, Japan Assoc of Water Steel Pipe, Japan,
Hiroshi Shima, Japan Assoc of Water Steel Pipe, Japan,
Yoshiyuki Mohri, Japan Assoc of Water Steel Pipe, Japan,

Document Type: Proceeding Paper

Part of: Pipeline Design and Installation


A field experiment was conducted to investigate behaviors of a buried continuous steel water main with a 90-degree miter bend subjected to internal pressure and ground settlement. Deformations of the pipe during backfilling are also discussed. A 812.8mm (32-inch) outside diameter, 7.0mm (0.276-inch) wall thickness and 50m (164 feet) long test pipe was used for the experiment. The ground settlement effect was created by dissolving a salt layer compacted beneath the test pipe. Displacements, deformations and strains induced in the test pipe were measured and the data were compared with a nonlinear finite element solution.

Subject Headings: Pipelines | Water supply systems | Steel pipes | Soil settlement | Nonlinear finite element analysis | Pressure pipes | Buried pipes | Finite element method

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