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Position: Home > Articles > Study on Anti-deposition Measures for Irrigation of Low-pressure Pipelines with Sandy Water Source Water Saving Irrigation 2019 (2) 107-109

含沙水源低压管道灌溉防淤措施研究

作  者：
陈文猛;钱钧;袁园;侯丽;朱燕飞;邱娅柳
单  位：
江苏省水利科学研究院
关键词：
低压管道;淤积;临界不淤流量
摘  要：
低压管道灌溉管道淤积的因素主要有水源含沙量及颗粒级配、管道流量、管径、灌溉方式与运行管理等因素。根据不同管径情况下含沙量与临界不淤流量关系研究表明,以长江水源泥沙含量0.414 kg/m3,中值粒径为0.01 mm分析,干管管径500 mm时,临界不淤流量为281 m3/h,支管管径200 mm时,临界不淤流量为40 m3/h。随着泥沙含量的增加,管道临界不淤流量增大,同时,在相同泥沙含量情况下,临界不淤流量随输水管径的增加而加大,输水管径对临界不淤流量有较大影响。
译  名：
Study on Anti-deposition Measures for Irrigation of Low-pressure Pipelines with Sandy Water Source
作  者：
CHEN Wen-meng;QIAN Jun;YUAN Yuan;HOU Li;ZHU Yan-fei;QIU Ya-liu;Hydraulic Science and Research Institute of Jiangsu Province;Nanjing Water Affairs Bureau;Nanjing Water Conservancy Planning and Design Institute Corp.Ltd.;Nanjing Water Resource Management Center;Water Bureau of Gaochun District;
单  位：
CHEN Wen-meng%QIAN Jun%YUAN Yuan%HOU Li%ZHU Yan-fei%QIU Ya-liu%Hydraulic Science and Research Institute of Jiangsu Province%Nanjing Water Affairs Bureau%Nanjing Water Conservancy Planning and Design Institute Corp.Ltd.%Nanjing Water Resource Management Center%Water Bureau of Gaochun District
关键词：
Low pressure pipeline;;siltation;;critical non-sludge flow
摘  要：
The factors of siltation of low-pressure pipeline irrigation pipelines mainly include factors such as water sediment concentration and particle gradation,pipeline flow,pipe diameter,and irrigation mode and operation management. According to the relationship between sediment concentration and critical non-sludge flow of different pipe diameters,when the sediment concentration of the Yangtze River is0.414 kg/m3,the median diameter is 0.01 mm,and the main pipe diameter is 500 mm,the critical non-sludge flow is 281 m3/h,when the diameter of the branch pipe is 200 mm,the critical non-sludge flow rate is 40 m3/h. With the increase of sediment content,the critical non-sludge flow increases. At the same time,under the same sediment content,the critical non-sludge flow increases with the increase of the pipe diameter,and the pipe diameter has a great influence on the critical non-sludge flow.

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