Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Prediction of Long-Term behavior of polyethylene pipe buried underground

지중매설 폴리에틸렌 관의 장기거동 예측

  • Lee, Jae-Ho (Department of Civil Engineering, Hongik University) ;
  • Kim, Bin (Department of Civil Engineering, Hongik University) ;
  • Yoon, Soo-Hyun (Department of Civil Engineering, Hongik University) ;
  • Kim, Eung-Ho (Department of Civil Engineering, Hongik University)
  • 이재호 (홍익대학교 토목공학과) ;
  • 김빈 (홍익대학교 토목공학과) ;
  • 윤수현 (홍익대학교 토목공학과) ;
  • 김응호 (홍익대학교 토목공학과)
  • Received : 2016.10.07
  • Accepted : 2017.01.24
  • Published : 2017.02.28
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Abstract

Most of existing buried pipes are composed of reinforced concrete. Reinforced concrete pipes have many problems such as aging, corrosion, leaking, etc. The polyethylene (PE) pipes have advantages to solve these problems. The plastic pipes buried underground are classified into a flexible pipe. National standard that has limited the long-term vertical deformation of the pipe to 5% for flexible pipes including PE pipe. This study presents a prediction for the long-term behavior of the polyethylene pipe based on ASTM D 5365. This prediction method is presented to estimate by using the statistical method from the initial deflection measurement data. We predict the behavior of long-term performance on the double-wall pipe and multi-wall pipe. As a result, it was found that the PE pipe will be sound enough more than 50 years if the compaction of soil around the pipe is more than 95% of the standard soil compaction density.

Keywords

References

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