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U形渠道已在我省大量应用。做好U形渠道的量水设施是搞好灌区经营管理,提高经济效益,实行按方收费的重要环节,也直接关系着千家万户的切身利益。本文就如何做好U形渠道直壁槽式量水堰施工作一介绍。 U形渠道直壁槽式量水堰是陕西机械学院水利水电科研所、省水利水保厅、三原县清惠渠管理局共同试验研究的,有弓底形和三角底形两种形式,它不改变原渠底比降,和U形渠连接自然,省工省料。测流精度高。并已制成“量水手册”,易被群众掌握。已由省水利厅主持进行了鉴定。一、量水堰结构尺寸的确定 U形渠道直壁槽式量水堰是由两端过渡段、喉遭段和上、下游水尺组成.各部结构尺寸为: 1、两端过渡段均为椭圆曲线,其方程为:
U-shaped channels have been widely used in our province. Doing a good job of U-shaped channel of water facilities is to improve irrigation management, improve economic efficiency, the implementation of an important part of the charges, but also directly related to the vital interests of millions of households. This article on how to do U-shaped channel straight wall trough type weir construction for an introduction. U-shaped channel straight wall trough type weir is joint experimental study of Shaanxi Institute of Water Resources and Hydropower Research, Institute of Water Resources and Water Conservation, and Qinghui Channel Administration of Sanyuan County. It has two forms, bow bottom and delta bottom. Change the original ratio at the end of the canal, and U-shaped canal connected to nature, saving labor and material. High precision flow measurement. And has been made “volume of water”, easily grasp by the masses. Has been the provincial Water Resources Department presided over the identification. First, the size of the weir to determine the size U-shaped channel straight wall trough weir is composed of two ends of the transitional section, the throat was the upper and lower water level rulers composition of each structure size: 1, both ends of the transitional section are Elliptic curve, the equation is: