Abstract
AbstractHigh-density polyethylene (HDPE) pipes are widely used throughout the world due to their significant advantages. Most of the previous studies have focused on the behavior of the pipe-soil system under live loading and the development of theories and design methods. However, studies on the effect of construction on the response of HDPE pipes buried in fine-grained soils have not been well understood. In this study, a full-scale field test was conducted to investigate the earth pressure and deflection of three profile-wall corrugated HDPE pipes during installation in fine-grained soils. Pipes with diameters of 300 and 600 mm were buried in trenches with a width of 2.0 m. The test results demonstrate that the pipes deformed into a vertical ellipse before the backfilling reached the top of the pipe level and then gradually rerounded afterwards. The measured vertical earth pressure above the top of the pipe was lower than the overburden stress and pressure calculated using the Marston load theory, whic...
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