本幻灯片概述了大直径管道故障总成本的分析。首先估算每年美国管道故障的总数，并给出总成本=直接成本+社会成本的等式。数据分析显示:170万美元 是每次休息的平均总成本吗 （算术平均值）； $500,000 （几何平均数）；和 6000至850万美元 （每次休息的总成本范围）。演示文稿概述了如何使用产品的几何平均成本 一次重大故障50万美元， 你可以主动: 更换约1700英尺的24英寸干管； 滑线约2000英尺（24英寸）干管； 使用以下工具检查约8英里长的混凝土管道: 远场涡流/传输耦合 （RFEC/TC）技术；和 对设备进行价值1万美元的维护 50个大型管道阀门。建议包括:针对城市地区的大型干线和 考虑未来的路由/馈送选项； 检查这些区域的阀门； 针对对电力供应至关重要的大型干线 维持系统压力；和 针对特定的主管道进行检查， 更新，或具有 记录了国家失败的历史。

This slide presentation outlines an analysis of the total costs of large diameter pipe failures. It begins by estimating the total number of U.S. pipe failures per year, and presents the equation of Total Cost = Direct Costs + Societal Costs. Analysis of the data showed: $1,700,000 Was the Average Total Cost Per Break (The Arithmetic Mean); $500,000 (The Geometric Mean); and, $6,000 to $8.5 Million (The Range of Total Cost Per Break). The presentation outlines how using the Geometric Mean Cost of $500,000 for one large main failure, you could proactively: replace about 1,700 feet of 24-inch main; Slip Line about 2,000 feet of 24-inch main; inspect about 8 miles of concrete pipe using Remote Field Eddy Current / Transfer Coupling (RFEC /TC) Technology; and, perform $10k worth of maintenance on 50 large line valves. Recommendations include: Target Large Mains in Urban Areas and Consider Future Routing/Feed Options; Review the Valves in These Areas; Target Large Mains Which are Critical to Maintaining System Pressure; and, Target Specific Mains for Inspection, Renewal, or Replacement That Have a Documented National History of Failure.