Groove bottom-reinforced fully lined debris flow drainage groove and construction method thereof

Abstract

The invention discloses a groove bottom-reinforced fully lined debris flow drainage groove and a construction method thereof. The groove bottom-reinforced fully lined debris flow drainage groove comprises a fully lined drainage groove bottom plate and drainage groove side walls on the two sides of the bottom plate; a plurality of submerged sills which pass through along the drainage groove transversely, are connected with the drainage groove bottom plate, are distributed at intervals, and have a certain effective burial depth are arranged in the foundation and below the drainage groove; the submerged sills at the inlet and the outlet of the drainage groove are deepened submerged sills, and the submerged sills at other positions of the drainage groove are common submerged sills; and the effective burial depth of each of the deepened submerged sills is larger than that of each of the common submerged sills, and the deepened submerged sills extend to the bottom of the foundation of each of the drainage groove side walls on the two sides so as to form a triangular wedge-shaped body respectively. Compared with the prior art, the groove has the advantages of making full use of the bed-reinforcing effect of the submerged sills, reinforcing the bottom of the drainage groove in sections, avoiding danger to the entire drainage groove due to the damage of local drainage groove bottom, guaranteeing the operation safety of the drainage groove adequately, increasing small working amount and saving a large amount of engineering maintenance cost, along with low construction cost.

Description

technical field [0001] The invention relates to a mud-rock flow prevention and control technology, in particular to a fully-lined mud-rock flow drainage channel with reinforced bottom and a construction method thereof. Background technique [0002] Debris flow disaster is one of the main types of geological disasters in my country. With the development of the mountainous area economy and the deepening of the western development, the demand for debris flow engineering control is becoming more and more vigorous. The fully-lined debris flow drainage channel is the most common engineering measure for debris flow engineering control. It has been widely used in the past and will also be necessary in future debris flow engineering control. Will be heavily applied. [0003] Due to its much higher bulk density than water, debris flow has a special fluid structure containing clastic soil, so the movement of debris flow shows the characteristics of high inertia, strong transport force...

AI Technical Summary

Problems solved by technology

[0003] Due to its much higher bulk density than water, debris flow has a special fluid structure containing clastic soil, so the movement of debris flow shows the characteristics of high inertia, strong transport force, huge impact force, strong abrasive force, etc. The bottom of the lining-type debris flow drainage channel is highly abrasive and severely damaged by impact, with adverse consequences of local damage or even complete tank failure

[0004] In order to prevent the debris flow from eroding the bottom of the fully-lined debris flow drainage channel, it is usually used to increase the concrete grade and set up the old rail slide bed protection, but the cost of these measures is too high to be widely used. On the other hand, even if it is adopted These measures may also lead to the destruction of the entire guide groove due to local weak point damage.

[0005] The utility model patent with the patent number ZL 200320115126.0 titled "Debris Flow Velocity Discharge Structure" discloses the embedded pile structure. Clarify the positional relationship between the embedded pile structure and the velocity flow tank; if the embedded pile is located under the side wall of the tank, it cannot provide any protection for the bottom of the tank; if the embedded pile is located below the bottom of the tank, it cannot provide good protection. Horizontal anti-sliding force. Second, because it does not penetrate the bottom of the groove, the overall protective effect of the row guide groove is very limited under the local damage of the bottom of the groove.

Therefore, this kind of debris flow velocity drainage structure has the same phenomenon as the general full-lined trench that the local weak point may be damaged, resulting in the destruction of the entire drainage trench.

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