Plastic Pipes Conference Association # 2023 Lake Buena Vista
Shad Sargand, Issam Khoury, John Kurdziel
One solution in development for managing runoff water is the buried stormwater drainage retention tank or “crate”. The crate is typically a rectangular box structure made of thermoplastic components (flat panels and columns) assembled in a modular form. The function of the top panel is to transfer the load to the columns. This load can be due to live and dead load, backfill, etc.
The structural performance of the drainage system has generally been limited to laboratory experiments consisting of placing a concrete block on top of a panel placed on the columns. In the field, the panels will potentially experience local buckling or excessive tension, experiencing failure modes not considered in these tests.
A unique apparatus was constructed to test a drainage system module with a load that includes a layer of granular material between the module and the concrete weight. This experimental setup more realistically replicates actual field conditions than those currently under consideration for international specifications [ISO 4981, 2023].
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