Irrigation and Melioration


The article justifies the necessity for the development of mobile water measuring weirsfor farmlands, a new structure of mobile weir with rectangular opening has been proposed, disadvatages of stationary water measuring weirs for temporary irrigation channels and advantages of mobile water measuring weirs is justified. Also a description of structure of mobile water measuring weir with rectangular opening is given along with schematic picture and a table for determining discharges for such weirs. Method and example for determining the sizes of weir elements, example for calculation of the amount of material needed for its individual fabrication and weir installation order has been described and conclusions are given at the end.

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1. Қишлоқ хўжалигида ислоҳотларни чуқурлаштиришда сувдан фойдаланувчилар уюшмасининг ўрни (Ш.Р.Хамраев тахрири остида). Тошкент, Талқин, 2009, 295 б. 2. Штеренлихт Д.В. Гидравлика. М., Энергоиздат, 1984, 640 с. 3. Практические занятия по сельскохозяйственной гидротехнической мелиорации. (под. ред. проф. Ф.М.Рахимбаева). Ташкент, “Меҳнат”, 1991, 390 с. 4. Железняков Г.В. Теоретические основы гидрометрии. Гидрометиздат. Л., 1968, 291 с.



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