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設計溢洪道孔口和选擇閘門类型,应当按照下面三个主要步驟来进行。第一,确定孔口的最优高度。第二,确定孔口的最优寬度。第三,最后确定最优閘門几何尺寸和梁系佈置。茲將上述三个主要步驟分述如下: 一、溢洪道孔口最优高度的确定溢洪道孔口高度的决定对整个溢洪道的造价影响是很大的。溢洪道孔口高度愈大,单寬流量就愈大,于是溢洪道長度縮短,护坦和海漫就必須
The design of spillway openings and selection of gate types should be conducted in accordance with the following three main steps. First, determine the optimum height of the orifice. Second, determine the optimum width of the orifice. Third, finally determine the optimal gate geometry and beam layout. The three main steps are as follows: First, the optimal height of the spillway orifice The decision to determine the spillway orifice height has a significant impact on the cost of the entire spillway. The larger the height of the spillway orifice, the greater the flow rate per unit width. As a result, the length of the spillway is shortened.