The deformation characteristics of buried HDPE transfer lines in trenches under the effect of temperature

Today, the use of high-density polyethylene (HDPE) transfer lines is increasing day by for drinking water, wastewater, sewerage networks, rainwater drainage lines, water transport structures, and natural energy sources, etc. In this study, flexible HDPE pipes were embedded in a trench to expose them variable relative density different thermal conditions so that resulting deformation behavior could be investigated. Displacements elastic strain values crown spring line regions measured. The main aim research was determine under temperature effects within framework geotechnical principles reflect real field conditions. As result, subject vertical loading tested experiments carried out silica sandy trench, deformations increased due an increase density. maximum displacements bending moment obtained at 50°C, which condition applied. An decrease modulus elasticity.