Hydraulic calculation of reliability and safety parameters of the irrigation network and its hydraulic facilities

Abstract

Nowadays, more than 155.7 thousand km of irrigation networks are operated by WUA, farms and clusters. 95% of irrigation networks were built and commissioned in the 80s of the last centuries. The parameters of the irrigation canals, built in the 70-80s of the XX century, are set for irrigation of cotton and alfalfa irrigated agriculture during the growing season 170-210 days. Irrigation networks have been designed for this crop rotation scheme. Since 1993, the rotation scheme has changed to cotton-wheat. Irrigation networks began to operate continuously throughout the year after the transition of agricultural production to the cultivation of autumn cereals, which require irrigation from October to May. As a result, it has become difficult to carry out repair work on irrigation networks. In addition, irrigation networks have been designed, built and operated by adapting crops to traditional irrigation systems. In recent years, large-scale work has been carried out on the widespread implementation of water-saving technologies in agriculture.