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鉴于淋溪河水电站溢洪道原设计方案的种种缺陷,基于弗劳德准则,采用1∶60的模型比尺,通过设置表孔和深孔出口体型,研究了不同体型参数下泄流能力和水流对水垫塘底板的冲击压力。试验结果表明,优化后的底板冲击压力由14.50kPa降至11.44kPa,脉压均方根由95.67kPa降至45.55kPa,同时水垫塘长度由269.5m减小至169.5m,仍满足泄洪消能要求。研究成果可为同类工程提供参考。
In view of the defects of the original spillway design scheme of Lixihe Hydropower Station, based on the Froude criterion, the model scale of 1:60 was adopted. By setting the exit form of the hole and the deep hole, the discharge capacity and water flow under different size parameters Plunge floor impact pressure. The experimental results show that the optimized impact pressure of bottom plate decreases from 14.50 kPa to 11.44 kPa, the root mean square of pulse pressure drops from 95.67 kPa to 45.55 kPa, and the length of plunge pool decreases from 269.5 m to 169.5 m. . The research results can provide reference for similar projects.