Plastic Pipes Conference Association # 2023 Lake Buena Vista
Joe Babcanec, P.E., Issam Khoury, Ph.D, P.E., Shad Sargand,
The use of corrugated HDPE and PP pipe for gravity flow storm sewers is a growing trend throughout the United States. Many of these drainage pipes are buried in shallow cover conditions under roads with heavy traffic. It is well established that thermoplastic pipe installations under shallow cover respond differently to loads than those under deep cover. In shallow cover conditions the pipe experiences greater stresses, due to more load. The selection of backfill material and level of compaction have a greater impact on the performance of pipes under shallow cover. A comprehensive study is being initiated at the Accelerated Pavement Load Facility at Ohio University. This study is an investigation of the response of the pipe systems under shallow cover under heavy loads at 5 mph. Factors being examined for influence on pipe response and performance include backfill type, level of compaction, pipe material, pipe diameter, cyclic loading, and temperature. Instrumentation used includes strain gauges on pipe and pavement, soil pressure cells, string potentiometers, and thermocouples.
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