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首页> 外文会议>Canadian Dam Association 3rd Annual Conference, Sep, 2000, Regina, Saskatchewan >SURVEILLANCE AND MONITORING OF ONTARIO POWER GENERATION DAMS
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SURVEILLANCE AND MONITORING OF ONTARIO POWER GENERATION DAMS

机译：安大略省发电局的监视和监控

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Ontario Power Generation Inc. (OPG) owns and operates 258 dams which are up to 100 years old and range in height from freeboard structures to 132m high. OPG carries out surveillance and monitoring of these structures utilizing visual observations combined with instrumentation monitoring using a standard array approach. In order to carry out effective surveillance and instrumentation monitoring, a program was initiated to reassess the surveillance requirements for all concrete and earthfill dams. As a result, a two-stage strategy was developed. The initial stage was a screening process which used a rating system to prioritize the dams most in need a review of the current practices in place. It was based on factors such as dam age, stability and condition, foundation characteristics, incremental consequences of failure, and operation and maintenance practices. The second stage was an assessment of site specific features. This latter process includes the identification of potential failure modes using Failure Modes and Effects Analysis so surveillance and monitoring programs can be developed to detect early warning of deficiencies which, if unattended, could lead to failure. Outcomes of these assessments could include recommendations to change surveillance practices, decommission instruments, alter monitoring frequency, establish threshold levels or install additional instrumentation. This paper discusses the two-stage process and demonstrates its benefits by providing examples on the application of the Failure Modes and Effects Analysis to improve surveillance and monitoring.
机译：安大略省电力公司（OPG）拥有并运营258个大坝，这些大坝已有100年的历史，其高度范围从干舷结构到132m高。 OPG使用视觉观察结合标准阵列方法对仪器进行监视，从而对这些结构进行监视和监视。为了进行有效的监视和仪器监视，启动了一个计划，以重新评估所有混凝土和土石坝的监视要求。结果，制定了两阶段策略。初始阶段是筛选过程，该过程使用评级系统对最需要的水坝进行优先排序，以审查当前的做法。它基于诸如坝龄，稳定性和状况，基础特性，故障的增量后果以及操作和维护惯例等因素。第二阶段是评估站点的特定功能。后一个过程包括使用“故障模式和影响分析”识别潜在的故障模式，因此可以开发监视和监视程序以检测缺陷的早期警告，如果不注意，可能会导致失败。这些评估的结果可能包括有关更改监视实践，停用仪器，更改监视频率，确定阈值级别或安装其他仪器的建议。本文讨论了两个阶段的过程，并通过举例说明“故障模式和影响分析”在改善监视和监控中的应用来证明其好处。

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