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通过200多次水力模型试验,本文对目前铁路圆形涵洞设计中所采用的无压与半有压流态判别式、涵内压缩断面水深h_c与临界水深h_k之比、流速系数φ_c等提出了修改意见;对圆形涵管水力计算提出了简便方法。
Through more than 200 hydraulic model tests, this paper presents the pressure-free and semi-pressure discriminant used in the design of circular culverts, the ratio of the depth h_c to the critical depth h_k and the velocity coefficient φ_c Modify opinions; proposed a simple method of hydraulic calculation of circular culvert.