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首页> 外文期刊>The international journal on hydropower & dams >Total dissolved gas assessment at the Ruskin dam
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Total dissolved gas assessment at the Ruskin dam

机译：拉斯金水坝的总溶解气评估

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As part of on-going seismic upgrades, the Ruskin spillway will be converted from a seven-bay spillway to arnfive-bay configuration. Studies were conducted to evaluate the performance of the re-configured spillway,rnincluding an assessment of the total gas pressures (TGP) downstream of the spillway and examination ofrnoperational and structural changes that could be implemented to reduce TGP.rnThe Ruskin generating station is on the Stave river, approximately 65 km east of Vancouver, Canada. The project was completed in 1930, and comprises Hayward Lake reservoir (Ruskin dam reservoir), Ruskin powerhouse and Ruskin dam. Hayward Lake reservoir has a negligible contributing watershed and its water supply comes almost entirely from water discharged from the Stave Falls generating station approximately 5.6 km upstream. The Ruskin powerhouse contains three 35 MW Francis turbines, and Ruskin dam is a concrete gravity dam.rnThe existing spillway consists of seven radial-gated overflow crest spillway bays, numbered in sequence from 1 to 7, starting from the right side of the dam (looking downstream). The existing ogee crest is at el. 34.98 m and the existing roadway over the spillway has a deck at el. 45.75 m. Concrete benches and training walls line both sides of the downstream banks of the spillway, following the contours of the natural channel banks. In addition to providing erosion protection to the banks, these benches redirect discharge into the main channel, especially when the outside gates are used. While the individual benches on either bank vary both in plan form geometry and elevation, there are several larger benches on each bank (see photograph). Most notably, a 27 m-long by 12 m-wide bench set at el. 6.8 m is located along the right bank, downstream of Bays 2 and 3. A slightly smaller, 19 m long by 8 m wide, bench set at el. -6.2 m is located along the left bank, downstream of Bays 5 and 6. The spillway chute terminates with a concrete apron set at el. -10.13 m, which is downstream of Bays 4 and 5 and connects the lowest benches on either bank.
机译：作为正在进行的地震升级的一部分，Ruskin溢洪道将从七湾溢洪道转换为arnfive湾配置。进行了研究以评估重新配置的溢洪道的性能，包括评估溢洪道下游的总气体压力（TGP）并检查可以实施以减少三峡工程总吨位的运行和结构变化。梯级河，加拿大温哥华以东约65公里。该项目于1930年完成，包括海沃德湖水库（鲁斯金水库），鲁斯金发电站和鲁斯金水坝。海沃德湖水库的分水岭微不足道，其供水几乎完全来自上游约5.6公里的梯级瀑布发电站排出的水。拉斯金发电站包含3台35 MW的弗朗西斯水轮机，拉斯金大坝是混凝土重力坝。rn现有的溢洪道由七个径向闸门溢流顶溢洪道海湾组成，从大坝的右侧开始依次编号为1到7，向下游看）。现有的ogee峰位于el。 34.98 m，溢洪道上的现有巷道在el处有一个甲板。 45.75百万沿着天然河道的轮廓，混凝土台和训练墙排在溢洪道下游河岸的两侧。除了为堤岸提供防腐蚀保护外，这些工作台还可以将排放物重定向到主通道，尤其是在使用外闸的情况下。虽然任一岸上的各个长凳在平面形状和高度上都各不相同，但每岸上都有几个较大的长凳（见图）。最值得注意的是，位于el的27m长x 12m宽的长凳。 6.8 m位于2号湾和3号湾下游的右岸。稍稍长一点，长19 m，宽8 m，位于el处。 -6.2 m位于左岸，在5号湾和6号湾的下游。溢洪道斜槽终止于在el处设置的混凝土围裙。 -10.13 m，在4号和5号海湾的下游，连接任一岸的最低台阶。

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    B. Hughes; W. D. Clohan; Z. Micovic;

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    Northwest Hydraulic Consultants, 30 Gostick Place, North Vancouver, BC, Canada;

    Northwest Hydraulic Consultants, 30 Gostick Place, North Vancouver, BC, Canada;

    British Columbia Hydro and Power Authority, Canada BC Hydro Engineering, 6911 Southpoint Drive (B02), Burnaby, BC. V3N 4X8 Canada;

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