A kind of biological escape channel of hardened slope protection curved channel

Abstract

The invention discloses a biological escape tunnel of a hardened slope protection bent channel. The biological escape tunnel comprises a concave bank escape ladder and a convex bank escape ladder which are arranged on the two sides of the corner of the hardened slope protection bent channel. The channel section of the hardened slope protection bent channel is in an inverted trapezoidal shape. The lower end of the concave bank escape ladder and the lower end of the convex bank escape ladder are connected with the side walls of the channel. The included angle between the concave bank escape ladder and the corresponding side wall of the channel and the included angle between the convex bank escape ladder and the corresponding side wall of the channel are both acute angles. A concave bank safety platform is arranged on the concave bank escape ladder, and a convex bank safety platform is arranged on the convex bank escape ladder. The biological escape tunnel has the beneficial effects that escape chances can be provided for small animals falling into the channel, and the small animals are helped to climb out of the channel ingeniously with the help of the function of transverse circulation flow in the bent channel through the characteristic that the directions of the transverse circulation flow at the bottom and top of water flow are different. The biological escape tunnel has the beneficial effects of being low in building cost, easy to popularize and the like.

Description

technical field [0001] The invention relates to a biological escape channel of a hardened slope protection curved channel, in particular to a biological escape channel designed by utilizing the characteristics of the lateral circulation of the curved channel. Background technique [0002] At present, most of the channels in irrigation areas in my country use concrete channels. While the lining construction improves the water delivery efficiency of the channels, it also has an impact on the ecology. Due to the construction of channels all over the farmland, many small animals in the field, such as frogs, toads, snakes, etc., can easily fall into the concrete channel if they act carelessly. The lining channel has a steep slope, a smooth slope, and the bottom of the channel is too deep, so it is difficult to climb out and escape. [0003] For this reason, many scholars have done a lot of research on setting animal escape passages in straight channels. In straight channels, whe...

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Problems solved by technology

[0004] At present, there are no reports on the use of stable transverse circulation to set animal escape passages on the hard concrete slope protection of curved channel sections. The present invention proposes an animal escape passage suitable for hard concrete slope protection of curved channels in irrigation areas

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