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首页> 外文会议>Canadian Dam Association 3rd Annual Conference, Sep, 2000, Regina, Saskatchewan >GARDINER DAM - THREE DECADES OF PERFORMANCE MONITORING
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GARDINER DAM - THREE DECADES OF PERFORMANCE MONITORING

机译：GARDINER DAM-进行十三个绩效监控

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Gardiner Dam is part of a multi-purpose water management project located on the South Saskatchewan River in Saskatchewan, Canada. The dam is founded on a heavily over-consolidated clay shale that significantly influenced the design, construction and performance of the dam. Although extensive pre-design site investigation and evaluation were undertaken, the strength characteristics of the over-consolidated clay shale became evident only after excavations and embankment construction commenced. An extensive monitoring program was undertaken to assess the foundation performance as construction progressed and subsequently during the post-construction period. This paper describes the instrumentation installed in the foundations and principal embankments during the construction and post-construction periods and presents the monitoring results. A variety of geotechnical instruments such as inclinometers, piezometers, alignment pins and settlement/rebound gauges were installed during construction and subsequent 30 years of operation and maintenance. The foundation at the central section of the dam moved approximately two metres downstream during the 10 years of construction and one metre during the 30 year post-construction period. Foundation settlement of similar magnitudes occurred during the same time period. The dam moves downstream during the annual reservoir filling. The annual deformation has decreased to less that 10 mm over the years. A maximum rate of reservoir rise operation rule was lifted in 1984 as a result of the declining annual movements. The successful completion and subsequent operation of Gardiner Dam clearly demonstrate the significance of a thorough and well-planned instrumentation program for a large dam with difficult and unprecedented foundation problems.
机译：Gardiner大坝是位于加拿大萨斯喀彻温省南萨斯喀彻温省河上的多功能水管理项目的一部分。该水坝建立在严重固结的泥页岩上，对页岩的设计，施工和性能产生了重大影响。尽管进行了大量的设计前现场调查和评估，但过固结的泥页岩的强度特征只有在开挖和筑堤施工开始后才变得明显。进行了广泛的监测计划，以评估随着施工进度以及随后在施工后阶段的基础性能。本文介绍了在施工和施工后安装在基础和主要路堤中的仪器，并介绍了监测结果。在施工期间以及随后的30年运行和维护中，安装了各种岩土工程仪器，例如测斜仪，测压仪，对准销和沉降/回弹仪。大坝中央部分的地基在建设10年期间向下游移动了约2米，在建设后30年期间向下游移动了1米。在相同时期内发生了类似规模的地基沉降。在每年的水库注水期间，大坝向下游移动。多年来，年变形量已减少到小于10毫米。由于年度运动的减少，1984年取消了水库上升操作规则的最高速率。 Gardiner大坝的成功完成和随后的运行清楚地表明，对于有困难和前所未有的地基问题的大型水坝，全面而精心计划的仪器仪表程序的重要性。

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