论文部分内容阅读
在苏联水力发电建设总局编制的技术规范(TY-24-108-48)中,一些特殊断面引水隧洞的尺寸,均用它们同隧洞宽度一定的比值来确定.规范中拟定了五种断面型式.这些隧洞都是按照流量模数来计算的.计算时要求编制详细的流量模数K值表并绘制流量模数与隧洞充满度a=h/H的关系曲线(式中h为均匀流水深;H为隧洞断面高度).现有的方法,在根据规定的隧洞断面尺寸,来计算其过流量时比较简单.但是,反过来在根据已知流量计算断面尺寸时则很复杂.下面介绍一种稍简便的方法.无压均匀流隧洞水力计算,可按下列公式进行.
In the Technical Specification (TY-24-108-48) compiled by the Soviet Bureau of Hydroelectric Power Construction, the sizes of some special cross-section diversion tunnels are all determined by their ratio to the tunnel width. These tunnels are calculated according to the flow modulus.During the calculation, it is required to prepare a detailed flow modulus K value table and plot the relationship between the flow modulus and the tunnel fullness a = h / H (where h is the uniform flow depth; H is the height of the tunnel section.) Existing methods, based on the provisions of the tunnel section size to calculate the over-flow is relatively simple, but in turn is calculated according to the known flow section size is very complicated. A simple and easy way. Pressureless uniform flow tunnel hydraulic calculation, according to the following formula.