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Numerical Investigation of the Short-Term Mechanical Response of Buried Profiled Thermoplastic Pipes with Different Diameters to External Loads

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Listed:
  • Yongti Shan
  • Guijun Shi
  • Qunfang Hu
  • Yunhui Zhang
  • Fu Wang

Abstract

High-density polyethylene (HDPE) double-wall corrugated pipe is a flexible buried pipe widely used in municipal drainage, and its deformation is affected by the compactness of the surrounding soil. This paper uses the ABAQUS to establish a three-dimensional pipe-soil model of double-wall corrugated pipes, and the mechanical response behavior of corrugated pipes with different nominal diameters subject to external loads is studied. The results show that the strain distribution characteristics for pipes with different diameters are very similar, and the circumferential strain value at critical positions of the pipe is proportional to its nominal diameter. Under poor backfill conditions, small-diameter pipelines are more prone to damage caused by strain concentration, while large-diameter pipelines may be damaged due to local bending.

Suggested Citation

  • Yongti Shan & Guijun Shi & Qunfang Hu & Yunhui Zhang & Fu Wang, 2021. "Numerical Investigation of the Short-Term Mechanical Response of Buried Profiled Thermoplastic Pipes with Different Diameters to External Loads," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-18, May.
    • Handle: RePEc:hin:jnlmpe:8853959
    DOI: 10.1155/2021/8853959
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