Buried Structural Capacity of Insituform®

by Reynold K. Watkins, Utah State Univ, Logan, UT, USA,
L. Phillip Sorrell, Utah State Univ, Logan, UT, USA,

Document Type: Proceeding Paper

Part of: Pipeline Design and Installation


In July 1988, a test was conducted at Utah State University to determine the structural support that can be provided to a failing rigid pipe system through the use of the Insituform process. The test was designed to determine the composite ring strength of the concrete/Insitupipe system. The experiment comprised two parallel test sections in the USU large soil cell. The two parallel test sections were 30 inch pipes placed in the soil cell separated by a spacing of 7.5 feet center to center. A vertical soil load was applied by 50 hydraulic cylinders attached to ten beams. Vertical diameters (deflection) of the test sections were measured after each increment of load.

Subject Headings: Vertical loads | Load tests | Soil tests | Hydraulic loads | Pipelines | Concrete pipes | Buried pipes | Composite structures

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