Novel Approach in Pipe Condition Scoring
Novel Approach in Pipe Condition Scoring
复制标题
管道状况评分的新方法
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
N. Attoh
中科院分区：
文献类型：
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作者：
Mary Cate Opila;N. Attoh
下水道和水管基础设施管理的一个主要挑战是确定管道资产的结构状况评分。用于确定管道状况的方法应该是相关的、可重复的和经过验证的。此外，为了适合在风险分析模型中使用，选择代表结构条件的尺度应该是线性的。本文开发的方法使先前开发的管道统计故障模型能够转化为单个管道的平均故障时间 (MTF)。通过使用贴现的经济概念，MTF 可用于对管道的结构状况进行评分，为基于风险的资产管理模型提供适当的结构状况评分。与以前开发的模型相比，这种确定结构状况评分的方法具有多个优点：结果可以轻松解释和验证，并且所得比例是线性的。此外，该系统还可以针对具有不同级别的可用数据的管道实施，例如针对有或没有检查结果的管道。
A major challenge in sewer and water pipe infrastructure management is determining structural condition scores for pipe assets. The methodology used to determine the condition of pipes should be relevant, repeatable, and validated. Additionally, to be appropriate for use in risk-analysis models, the scale selected to represent the structural condition should be linear. The methodology developed in this paper enables previously developed pipe statistical failure models to be translated into a mean time to failure (MTF) for individual pipes. By using the economic concept of discounting, the MTF is then used to score the structural condition of the pipe, providing an appropriate structural condition score for use in risk-based asset management models. This methodology for determining the structural condition score has several advantages over previously developed models: the results can be easily interpreted and validated, and the resulting scale is linear. Additionally, the system can be implemented for pipes with differing levels of available data, such as for pipes with and without inspection results.