Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Calculation method for equivalent drainage cross section area of reverse slope or flat slope drainage pipeline and drainage pipeline
The invention provides a method for calculating the equivalent drainage cross-sectional area of a reverse-slope or flat-slope drainage pipeline and the drainage pipeline, and the method comprises the following steps: S100, obtaining the radius R, the reverse-slope height difference delta h, the ramp height difference iL and the sandwich angle n of the drainage pipeline, the delta h is the difference value obtained by subtracting the inner bottom height of the upstream pipe from the inner bottom height of the downstream pipe of the drainage pipeline, and the delta h is the difference value obtained by subtracting the inner bottom height of the upstream pipe from the inner bottom height of the downstream pipe of the drainage pipeline; iL is a difference value obtained by subtracting a downstream dead water surface height from an upstream dead water surface height of the drainage pipeline, and n is a sandwich angle of a chord length where an upstream dead water surface of the drainage pipeline is located; s200, calculating to obtain an invalid lower chord area S of the drainage pipeline without drainage capacity; s300, the equivalent drainage pipe radius R'under the full pipe flow condition is obtained through calculation, and then the drainage capacity of the drainage pipe is calculated. The method for calculating the equivalent drainage cross section area of the reverse slope or flat slope drainage pipeline is simple, rapid and accurate.
本发明提供一种逆坡或平坡排水管道的当量排水截面面积的计算方法及排水管道，计算方法包括如下步骤：S100，取得排水管道的半径R、逆坡高差Δh、坡道高差iL以及夹心角n，其中Δh为排水管道的下游的管内底高度减去上游的管内底高度的差值，iL为排水管道的上游的死水面高度减去下游的死水面高度的差值，n为排水管道的上游处死水面所在弦长的夹心角；S200，计算得到排水管道的无排水能力的无效下弦面积S；S300，计算得到满管流的情况下的当量排水管半径R’，进而计算其排水能力。本发明的逆坡或平坡排水管道的当量排水截面面积的计算方法简单、快捷、精准。
Calculation method for equivalent drainage cross section area of reverse slope or flat slope drainage pipeline and drainage pipeline
The invention provides a method for calculating the equivalent drainage cross-sectional area of a reverse-slope or flat-slope drainage pipeline and the drainage pipeline, and the method comprises the following steps: S100, obtaining the radius R, the reverse-slope height difference delta h, the ramp height difference iL and the sandwich angle n of the drainage pipeline, the delta h is the difference value obtained by subtracting the inner bottom height of the upstream pipe from the inner bottom height of the downstream pipe of the drainage pipeline, and the delta h is the difference value obtained by subtracting the inner bottom height of the upstream pipe from the inner bottom height of the downstream pipe of the drainage pipeline; iL is a difference value obtained by subtracting a downstream dead water surface height from an upstream dead water surface height of the drainage pipeline, and n is a sandwich angle of a chord length where an upstream dead water surface of the drainage pipeline is located; s200, calculating to obtain an invalid lower chord area S of the drainage pipeline without drainage capacity; s300, the equivalent drainage pipe radius R'under the full pipe flow condition is obtained through calculation, and then the drainage capacity of the drainage pipe is calculated. The method for calculating the equivalent drainage cross section area of the reverse slope or flat slope drainage pipeline is simple, rapid and accurate.
本发明提供一种逆坡或平坡排水管道的当量排水截面面积的计算方法及排水管道，计算方法包括如下步骤：S100，取得排水管道的半径R、逆坡高差Δh、坡道高差iL以及夹心角n，其中Δh为排水管道的下游的管内底高度减去上游的管内底高度的差值，iL为排水管道的上游的死水面高度减去下游的死水面高度的差值，n为排水管道的上游处死水面所在弦长的夹心角；S200，计算得到排水管道的无排水能力的无效下弦面积S；S300，计算得到满管流的情况下的当量排水管半径R’，进而计算其排水能力。本发明的逆坡或平坡排水管道的当量排水截面面积的计算方法简单、快捷、精准。
Calculation method for equivalent drainage cross section area of reverse slope or flat slope drainage pipeline and drainage pipeline
逆坡或平坡排水管道的当量排水截面面积的计算方法及排水管道
HUANG XIAOJIA (Autor:in)
24.10.2023
Patent
Elektronische Ressource
Chinesisch
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