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文成县百丈沶一级水电站的泄洪建筑物,是典型的复杂泄洪系统,由泄洪闸、泄洪渠、泄洪隧洞、隧洞出口渠道等四部分组成,其位置在距主坝轴线约2.5km的上游左岸,这样复杂的泄洪系统水力运算一般要迭代两次以上才能得到满意结果。近期进行的该站大坝第一次安全定期检查,对其水力运算又进行了复核,取得准确的水库水位与泄流量关系曲线,并与水工模型试验成果对比(表1),获得满意结果。本文根据计算步骤先后次序撰写,可供类似泄洪系统的水力运算时参考。
Wencheng Baizhang 沶 a hydropower station flood discharge buildings, is a typical complex flood discharge system, by the flood discharge, flood discharge canal, flood discharge tunnel, tunnel exit channels and other four parts, its location in the main dam about 2.5km upstream left bank , So complex flood discharge system hydraulic operations generally need to iterate more than twice in order to get satisfactory results. The recently conducted regular safety inspection of the dam at the station for the first time carried out a review of its hydraulic calculation to obtain an accurate curve of the relationship between reservoir water level and discharge and comparison with the hydraulic model test results (Table 1) to obtain satisfactory results . This article is written according to the order of calculation steps, for similar hydraulic operation of flood discharge system reference.