Intensive flood irrigation channel

Abstract

An intensive flood irrigation channel, comprising an inner water-limiting dam wall (1) and an outer dam wall (3). The inner water-limiting dam wall (1) and the outer dam wall (3) are arranged in parallel. A channel (12) is found between the inner water-limiting dam wall (1) and the outer dam wall (3). The elevation of the channel (12) is lower than the minimum water level of a present section of riverbed. An outer dam wall water-limiting counterfort (2) is provided at a downstream extremity of the outer dam wall (3). A settled sand and flood discharging drain (4) is provided on the outer dam wall water-limiting counterfort (2). An overflow volume-adjustment sectional apron (13) is provided on the outside of the outer dam wall water-limiting counterfort (2). A settled sand and flood discharging drain gravitational apron (8) is provided on the outside of the settled sand and flood discharging drain (4). A channel gate (11) is provided downstream to the settled sand and flood discharging drain (4). A water supply inlet (5) is provided on the inner water-limiting dam wall (1) downstream to the channel gate (11). A water supply inlet pull-type apron (10) is provided on the inside of the water supply inlet (5). A water outlet (6) is provided downstream to the water supply inlet (5). A left-right pulling gate (7) is provided at the water outlet (6).

Description

technical field [0001] The invention belongs to the technical field of farmland water conservancy, in particular to an intensive flood irrigation channel. Background technique [0002] Since the invention of cement, there has been a development in promoting the construction of the river rolling dam hub project, which has solved the problem of stable supporting water intake for flood silting and farmland irrigation. However, due to the influence of river bends and tributary confluence in hilly areas, the unit area of ​​available land on both sides of the river is cut into small pieces, and each piece of land on both sides of the river can achieve the purpose of silting, irrigation and water supply. The short-distance or intensive construction of horizontal rolling dams in the river channel is not only financially unbearable, but also in the event of a catastrophic flood, the entire line is bound to flood into the river channel water level, endangering the safety of the river ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an intensive flood irrigation channel in order to solve the problems of high cost of traditional mortar rolling dams, inability to obtain local materials and not allowing intensive construction in river courses

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