Influence of Backfill Compaction on Mechanical Characteristics of High-Density Polyethylene Double-Wall Corrugated Pipelines

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Properties</td><td class="align_center">HDPE corrugated pipes</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Modulus of elasticity (MPa)</td><td class="align_center">800</td></tr><tr><td class="align_left">Density</td><td class="align_center">950</td></tr><tr><td class="align_left">Poisson’s ratio</td><td class="align_center">0.4</td></tr><tr><td class="align_left">Idealized exterior wall thickness (mm)</td><td class="align_center">3</td></tr><tr><td class="align_left">Idealized interior wall thickness (mm)</td><td class="align_center">2</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Idealized thickness of pipe walls for numerical simulation.</div>

Mathematical Problems in Engineering

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Table 4

Table 4: Influence of Backfill Compaction on Mechanical Characteristics of High-Density Polyethylene Double-Wall Corrugated Pipelines 