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拉西瓦水电站是狭窄河谷所建高坝的典型,泄洪水流能量大与下游河谷狭窄,消能水垫体积小的矛盾十分突出,构成了该电站泄洪消能问题中的主要矛盾。本文从挑流消能的原理入手,对拉西瓦水电站泄洪消能问题做了初步的分析和探讨;并结合水工模型试验指出,中、深孔采用窄缝式消能工,可能是解决拉西瓦水电站泄洪消能问题的一个重要途径。
Laxiwa Hydropower Station is a typical dam built in narrow valleys. The contradiction between the large flood discharge current and the narrow downstream valleys and the small volume of dissipating water mats constitutes the main contradiction in the issue of flood discharge and energy dissipation. This paper starts with the principle of energy dissipation by pick-flow and makes a preliminary analysis and discussion on the flood discharge and energy dissipation of Laxiwa Hydropower Station. Combined with the hydraulic model test, it is pointed out that the use of narrow-slot energy dissipaters in middle and deep holes may be a solution An Important Way to Relieve Flood and Energy Dissipation of Laxiwa Hydropower Station.