Damage evaluation and protection method of resin pipe for gas conduit subjected to impact load

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)


Medium-density polyethylene pipe has been widely introduced to low-pressure gas pipes because of its high flexibility and corrosion resistance. However, many third-party damages due to the impact of heavy equipment have been reported during the construction every year, thus, to prevent the third-party damage, materials such as high-density polyethylene and polyamide have been considered as the new gas pipe candidates. However, their impact resistance capacity under the third-party attack has not been clarified. In this study, static and impact loading experiments were conducted to compare load resistance capacities. As a result, it was revealed that the high-density polyethylene pipe and the polyamide pipe had higher static load capacity and impact resistance than the medium-density polyethylene pipe. By comparing the absorbed energy of the static test and the impact test and calculating the pseudo absorbed energy of the impact test, the evaluation formula judging the safer side of whether the penetration occurred was proposed. Furthermore, as one of the methods to protect the gas pipe, the protective effect of winding a sheet made of reinforced fiber and non-woven fabric was clarified.

ジャーナルInternational Journal of Protective Structures
出版ステータス出版済み - 12月 1 2020

!!!All Science Journal Classification (ASJC) codes

  • 建築および建設
  • 安全性、リスク、信頼性、品質管理
  • 材料力学


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