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本文介绍了丹江口深孔体型及消能的试验研究与原型应用。在体型方面,为适应高水头的水流特性,取消闸门槽,并将事故检修门设置于进口前缘,弧形工作门位于出口。管道系一种无门槽的流线化的有压进水口和陡坡明流泄槽的新型式。实践证明,运用可靠,水流特性较好,其优点是避免立轴璇涡,起到防止空蚀破坏的作用。出口消能采用挑流,使下游冲刷坑远离坝脚,确保大坝的安全。经多年实际应用和原型观测,模型及原型在各方面均获得较好的验证。
This article describes the Danjiangkou deep hole shape and energy dissipation experiments and prototype applications. In body shape, in order to adapt to the high water flow characteristics, the gate slot is canceled, and the accident inspection door is set at the front edge of the entrance. The arc work gate is located at the exit. The pipeline is a new type of un-slotted, streamlined pressurized flow inlet and steep slope clear flow drain. Practice has proved that the use of reliable, better water flow, the advantage is to avoid the vertical axis Xuan vortex, played to prevent cavitation damage. Exit energy dissipation using pick-flow, so that the downstream scour pit away from the dam feet, to ensure the safety of the dam. After many years of practical application and prototype observation, the model and the prototype have obtained good verification in all aspects.