Buckling of HDPE Liners under External Uniform Pressure
Publication: Journal of Materials in Civil Engineering
Volume 11, Issue 4
Abstract
Lining of underground pipeline networks with deformed/reformed high-density polyethylene (HDPE) liners is a trenchless technique frequently specified for rehabilitation. According to the current design practice, a liner can be structurally designed as a flexible pipe, rigid pipe, or composite pipe, depending on installation conditions. One of the most important design considerations of a confined liner is its buckling under a uniform pressure similar to that exerted by ground water seeping through the deteriorated host pipe. Because long-term testing of a lining system is both time-consuming and expensive, it becomes extremely important to establish a design criteria for long-term conditions more quickly and economically. In the reported study, over 200 short-, medium- and long-term tests were performed to examine the effects of the diameter, thickness, and deformities on the buckling characteristics of a HDPE liner pipe. Based on the findings of the study, some recommendations were proposed for the design and testing of plastic liners under short- and long-term loading conditions.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 11 • Issue 4 • November 1999
Pages: 353 - 361
History
Received: Jun 3, 1997
Published online: Nov 1, 1999
Published in print: Nov 1999
Authors
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