管の機能劣化予測式に基づく事故率曲線の検証
2020 年 25 巻 2 号 p. 25-33
詳細
2020 年 25 巻 2 号 p. 25-33
To maintain a reliable agricultural pipeline, it is necessary to predict the degradation of the pipeline's performance over the long term and to systematically implement adequate pipeline renewal. Therefore, based on the data collected and published so far for each type of pipeline (ACP, SP, DICP, VP, FRPM, RC, and PC) a standard long-term accident ratio was verified. Based on accident data and Water Technology Research Center (WaTeR) data, the accident ratios obtained by the predictive equations for pipeline lifespan defined for DCIP, SP, and VP are generally considered to be in agreement. Finally, for ACP, RC, PC, and FRPM pipes unused in water service, a standard accident ratio was established from the accident data and the correction coefficient was established by pipe type and diameter.
