Debris flow drainage groove provide with truss type energy dissipating sill

Abstract

The invention relates to a debris flow drainage groove, in particular to a debris flow drainage groove provided with a truss type energy dissipating sill. The debris flow drainage groove comprises flow constraining side walls arranged at the two sides of a channel and the truss type energy dissipating sill, the truss type energy dissipating sill is composed of multiple sill plates which are connected in a fold-line pattern, and the two ends of each sill plate are further fixedly connected with the flow constraining side walls; the lower portions of the sill plates are deeply embedded underground. By means of the debris flow guide groove provide with the truss type energy dissipating sill, the fabrication cost is saved by over 10%, and the management and maintenance for long-time running of a project are facilitated; compared with a transversely-penetrating type sill, the anti-scouring effect is better, the project is more durable, the sill is capable of adapting to drainage requirements for wide-range changes from a viscous debris flow to a mountain area flood breaking out in a drainage basin, the upstream and downstream relevance of aquatic organisms in the channel can be further maintained, and the ecological restoration of the channel is facilitated.

Description

technical field [0001] The invention relates to a debris flow drainage channel, in particular to a truss type energy dissipation rib sill debris flow drainage channel. Background technique [0002] Debris flow is a form of soil erosion that is severe enough to catastrophe. It is a rapid geological process on the surface, and it is also a multiphase heterogeneous fluid with high concentration and wide gradation. The traditional anti-scour of debris flow follows the full lining mode of water delivery channels and spillways. Due to the strong abrasiveness of debris flow, the project will be damaged quickly and the maintenance cost will be high. And in the state of constant flow, the fully-lined row channel and the transverse penetrating tooth sill block the upper and lower connections of aquatic organisms in the ditch bed, which is not conducive to the ecological restoration of the ditch bed. Contents of the invention [0003] In view of the above technical problems, the pre...

AI Technical Summary

Problems solved by technology

The traditional anti-scour of debris flow follows the full lining mode of water delivery channels and spillways. Due to the strong abrasiveness of debris flow, the project will be damaged quickly and the maintenance cost will be high.

And in the state of constant flow, the fully lined row guide groove and the transverse penetrating tooth sill block the upper and lower connections of aquatic organisms in the ditch bed, which is not conducive to the ecological restoration of the ditch bed

Images