A kind of debris flow airfoil guide groove structure

Abstract

The invention discloses a debris flow wing drainage guide groove structure. The structure comprises a bottom surface of a drainage guide groove and a side wall of the drainage guide groove, an outletsection of the drainage guide groove is curved and bent upwards, and the upward bending angle theta is an acute angle, so that mudstone fluid in the outlet section is horizontally or obliquely thrown;a wing pier is oppositely disposed at the curved outlet section, the wing pier includes a top surface, a bottom surface, a head, a first side surface and a second side surface, the head of the wing pier is located at the downstream of the drainage guide groove, the first side surface is parallel to the side wall of the drainage guide groove, the oppositely disposed wing pier forms V-shaped beam flow space through the second side surface, and the debris flow forms a vortex in the head region of the wing pier. The structure can effectively reduce the abrasion effect of the debris flow on the concrete material of the drainage guide structure, and eliminate the accumulation and embedding of the mudstone fluid at the outlet portion of the drainage guide groove.

Description

technical field [0001] The invention belongs to the technical field of special equipment for road maintenance in mountainous areas, and relates to a debris flow airfoil guide groove structure. Background technique [0002] Mountain torrents and mudslide disasters occur frequently in my country. About 1.8 million kilometers of trunk roads are located in high-incidence areas of mudslides. The disasters caused by roads and mudslides are widespread and severe. In 2010 alone, the direct economic loss reached 87 billion yuan, which seriously affected the transportation capacity, transportation safety and flood relief. Rescue, as soon as possible to improve the level of flood disaster mitigation technology has become a national demand. Since the founding of New China, my country has attached great importance to the problem of debris flow disaster reduction. "Limited interception, focusing on drainage, and combining guide and drainage" is the basic principle for controlling highway d...

AI Technical Summary

Problems solved by technology

A large number of engineering practices have shown that since debris flow is a high-speed mixed fluid rich in rocks, it has a strong abrasive effect on the drainage channel of concrete structures. Generally, after 5-8 times of debris flow abrasion, the steel bars will be exposed, shortening the drainage channel. service life of the structure

In addition, debris fluids are easy to accumulate at the outlet of the drainage channel, causing subsequent debris fluids to backfill and silt roads or even block rivers, resulting in secondary geological disasters

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