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FALLS DAM STONEY GATE OPERABILITY

机译：FALLS DAM STONEY门的可操作性

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摘要

Falls Dam is one of the four dams which comprise the Yadkin Project. The Yadkin Division of Alcoa Power Generating Inc. (APGI) owns and operates the Project. The dam and powerhouse were completed in 1919. The dam includes an integral powerhouse and intake, ten Stoney gates, two Tainter gates and a non-overflow gravity section.rnIn August 1994, Stoney gate 4 became stuck during closure and eventually dropped resulting in a failure of the gate's lifting mechanisms. In August 2004, the binding of Stoney gate 1 resulted in modifications to the gate side rollers.rnIn December 2008 and June 2009, there were failures of the lifting mechanisms at two other Stoney gates. As a result of the December 2008 incident, APGI initiated a detailed field inspection and testing program to evaluate the lifting mechanisms for the Stoney gates.rnThis paper discusses the history of Stoney gate operational problems, results of the field inspection and testing program including, laboratory test results, potential failure mechanism(s) and root cause(s), repair plans, and operational issues. The issues presented in the paper are important to understand the future inspection and testing needs for this type of gate to ensure continuous and safe operation of the spillway facilities.
机译：瀑布水坝是组成Yadkin项目的四座水坝之一。美国铝业公司（APGI）的Yadkin部门拥有并运营该项目。大坝和发电站于1919年完成。大坝包括一个完整的发电站和进水口，十个斯通尼闸门，两个塔因特闸门和一个非溢流重力段。1994年8月，斯通尼4号闸门在关闭时卡住，最终掉落，门的举升机构故障。 2004年8月，对Stoney闸1的绑定导致对闸侧滚子的修改。rn在2008年12月和2009年6月，另外两个Stoney闸的提升机构出现故障。由于2008年12月的事件，APGI启动了详细的现场检查和测试计划，以评估Stoney闸门的举升机制。测试结果，潜在的故障机制和根本原因，维修计划以及操作问题。本文中提出的问题对于理解此类闸门的未来检查和测试需求非常重要，以确保溢洪道设施的连续和安全运行。

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