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首页> 外文会议>Forth International Symposium on Roller Compacted Concrete (RCC) Dams; Nov 17-19, 2003; Madrid, Spain >Design and prototype test of stepped overflow surface at Dachaoshan hydropower station in China
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Design and prototype test of stepped overflow surface at Dachaoshan hydropower station in China

机译：中国大朝山水电站阶梯溢流面设计与原型试验。

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The dam of Dachaoshan hydropower station is a RCC gravity one with five crest overflowing orifices, which have a unit discharge of 222 m~3/s.m at the check flood level. By entire and local model tests, crest overflowing orifices adopted the technology of combined energy dissipator of flaring gate pier, stepped overflow surface and flip bucket. In June, 2002, the prototype observation was carried out to verify the design and operating conditions when the reservoir reached the normal water level (design flood level). The test results illustrated the characteristics of flow at high water head and large unit discharge. In February 2003, the comprehensive inspections to the structure was done, which reflected that the combined energy dissipator was in good condition after a flood season.
机译：大朝山水电站大坝为碾压混凝土重力坝，有五个顶溢孔，在止水洪水位，单位流量为222 m〜3 / s.m。通过整体和局部模型试验，波峰溢流孔采用了扩口闸墩，阶梯式溢流面和翻转铲斗的组合消能技术。 2002年6月，进行了原型观测，以验证水库达到正常水位（设计洪水位）时的设计和运行条件。测试结果说明了在高水头和大单位流量下的流动特性。 2003年2月，对该结构进行了全面检查，反映出组合式消能器在汛期后状况良好。

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