Short-Term Lateral Response of a Buried Modular Polymer Stormwater Collection Structure to Compaction and Overburden Pressure
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 143, Issue 9
Abstract
Results from full-scale physical experiments are reported to identify and quantify short-term lateral response around the perimeter of a modular polymer stormwater collection structure during backfilling and under applied vertical pressures equivalent to the maximum and maximum-factored burial depths. The physical simulation was such that lateral stresses developed in the side fill for stiff native trench conditions and the particular soil, compaction, and resulting lateral displacements of the side panels (i.e., soil-structure-compaction interaction). Two types of coarse-grained soil, two types of compaction, and two structure heights were examined. Tensile strains in edge PVC columns were induced by lateral bending from soil placement and lateral earth pressures. Of the conditions examined, rammer-compacted 19-mm poorly graded gravel resulted in the largest short-term edge column tensions (0.4%); however, even these values were 4.5 times smaller than the measured short-term PVC rupture strains.
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Acknowledgments
The physical experiments were funded by Brentwood Industries. The new insights into the soil-structure-compaction interaction and short-term PVC response were funded by the Natural Sciences and Engineering Research Council of Canada. The experimental facility was developed with funds from the Canada Foundation for Innovation and the Ontario Innovation Trust. The assistance of Mr. G. Boyd in conducting the physical experiments is gratefully acknowledged.
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©2017 American Society of Civil Engineers.
History
Received: Nov 29, 2016
Accepted: Apr 11, 2017
Published online: Jul 5, 2017
Published in print: Sep 1, 2017
Discussion open until: Dec 5, 2017
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