A culvert entrance flood control and guiding slag wall and flood control and guiding structure

Abstract

The utility model provides a kind of culvert entrance flood control and prevent flood and guide slag wall and flood control and prevent flood and guide structure, including slag wall wall body, drainage gap and barrier structure;The slag wall wall body is integrally the concrete pouring body of bottom wide, top narrow;The drainage gap is the gap distributed on the slag wall wall body transversely;The barrier structure is the barrier metal piece or barrier construction piece connected in the gap transversely.This scheme has the advantages that both can handle river ditch water flow unobstructed, prevent siltation congestion, and can resist mud-rock flow.

Description

Technical Field

[0001] This utility model relates to the field of culvert flood control and drainage technology, specifically, to a culvert inlet flood control and drainage retaining wall and a flood control and drainage structure. Background Technology

[0002] The vegetation along the mountain roads in western Sichuan is underdeveloped, and the surface is exposed weakly weathered bedrock, which is metamorphic sandstone and sandy slate. It is extremely easy to collapse when exposed to water, and the gullies are covered with colluvial gravel and soil.

[0003] Due to the impact of heavy rainfall, occasional small mudslides occur in the gullies, which can easily cause culvert blockages and mudslides to overflow onto the road surface, posing certain safety hazards to traffic.

[0004] The existing retaining wall structures at general construction sites are usually retaining walls to prevent the landslide of soil and rocks from mountains or slopes, which are inconsistent with the flood control and drainage requirements of culverts. Currently, no supporting flood control and drainage retaining structures that prevent siltation and ensure smooth drainage have been found in the gullies at the entrances of existing culverts on mountain roads. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a flood control and drainage retaining wall at the inlet of a culvert that can both ensure smooth water flow in rivers and ditches and prevent siltation and blockage, as well as resist debris flows.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a culvert inlet flood control and drainage retaining wall, including a retaining wall body, a drainage gap and a retaining structure; The retaining wall is a concrete casting that is wider at the bottom and narrower at the top. The drainage gaps are horizontally distributed gaps on the slag retaining wall. The barrier structure is a barrier metal component or barrier structure that is laterally connected to the gap.

[0007] Preferably, the concrete used for the retaining wall is C20 concrete.

[0008] Preferably, the overall height of the slag retaining wall is ≥3m.

[0009] Preferably, the top of the drainage gap extends through the top of the retaining wall body, so that the retaining wall body forms several horizontally independent retaining dams.

[0010] Preferably, the width of the drainage gap is ≤1m, and the distance between two adjacent drainage gaps is ≥2m.

[0011] Preferably, the barrier structure is an I-beam embedded at both ends in the wall body of the slag retaining wall.

[0012] Preferably, the spacing between the I-beams located in the same drainage gap is ≥50cm.

[0013] Preferably, the bottom of the retaining wall is provided with an integral concrete foundation, and the concrete foundation extends at least 30cm beyond the bottom of the retaining wall.

[0014] Preferably, the I-beam has a specification of I20a.

[0015] A flood control and drainage structure for a culvert inlet includes a culvert, a gully, and a slag retaining wall for the flood control and drainage at the culvert inlet. The distance between the slag retaining wall and the culvert opening is ≥2m.

[0016] Preferably, both ends of the retaining wall extend to the gully wall and connect with the gully wall.

[0017] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model sets up a retaining wall in front of the culvert inlet, with drainage gaps and barrier structures in the retaining wall. This can not only discharge the ditch water, but also intercept large-volume stones, dead branches and other alluvial materials. Thus, it achieves the comprehensive effect of not only ensuring smooth flow of river and ditch water and preventing siltation and blockage, but also resisting debris flow.

[0018] In summary, this utility model addresses the issue of debris flow gullies within existing highway culvert inlets in high mountain and canyon areas. Starting from the fundamentals of gully water treatment and siltation prevention, and combining the principles of debris flow control (comprehensive prevention technologies such as blocking, drainage, and stabilization), it designs a retaining wall scheme that integrates gully water treatment and debris flow prevention. This structure has significant advantages in preventing siltation and other unique benefits. It can selectively intercept large pieces (or, when necessary, larger particles) of solid matter in the debris flow, while allowing fine particles to continue to be discharged downstream with the water flow, thereby mitigating siltation and blockage at the drainage culvert inlet. This ensures unobstructed drainage from the culvert and facilitates timely dredging and maintenance. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of a flood control and slag-retaining wall at the inlet of a culvert according to this utility model.

[0020] Figure 2 This is an end view of a flood control and slag-retaining wall at the inlet of a culvert according to this utility model.

[0021] In the diagram: 1. The wall body of the slag retaining wall; 2. The drainage gap; 3. The retaining structure; 4. The gully. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0023] like Figure 1 and Figure 2 As shown, a flood control and drainage retaining wall at the inlet of a culvert includes a retaining wall body 1, a drainage gap 2, and a retaining structure 3.

[0024] The retaining wall 1 is a concrete casting body that is wider at the bottom and narrower at the top. The concrete is C20 concrete. A concrete foundation is set at the bottom. The front and rear sides extend at least 30cm beyond the retaining wall body. The height of the retaining wall 1 is at least 3m.

[0025] The drainage gap 2 is a gap that is distributed laterally on the slag retaining wall 1. The top of the drainage gap penetrates through the top of the slag retaining wall, so that the slag retaining wall forms several horizontally independent retaining dams.

[0026] In this embodiment, the width of the drainage gap 2 is ≤1m, and the distance between two adjacent drainage gaps is ≥2m to facilitate drainage.

[0027] The retaining structure 3 is a retaining metal component or retaining structure that is horizontally connected to the gap. In this embodiment, I-beams with a specification of I20a are selected. The two ends of the I-beams are buried at least 50cm deep in the retaining wall. The spacing between the I-beams in the same drainage gap 2 is ≥50cm to block large boulders, dead branches and other alluvial deposits that can easily cause culvert blockage. The retaining wall is connected to the gully wall on both sides. During the flood season, patrols should be strengthened and the debris flow deposits behind the wall should be cleaned up in a timely manner.

[0028] In practical applications, it is implemented as a flood control and drainage structure at the inlet of a culvert, including the culvert, the gully 4, and the flood control and drainage retaining wall at the inlet of the culvert.

[0029] The distance between the slag retaining wall and the culvert opening is ≥2m, and both ends of the slag retaining wall extend to the gully wall and connect with the gully wall.

[0030] This solution can effectively address the blockage of culverts caused by small debris flows and the treatment of debris flows that overflow onto roads. It also has advantages such as efficient construction and structural safety.

[0031] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A flood control and slag-removing retaining wall at the inlet of a culvert, characterized in that: This includes the retaining wall body, drainage gaps, and barrier structure; The retaining wall is a concrete casting that is wider at the bottom and narrower at the top. The drainage gaps are horizontally distributed gaps on the slag retaining wall. The barrier structure is a barrier metal component or barrier structure that is laterally connected to the gap.

2. The culvert inlet flood control and slag discharge retaining wall according to claim 1, characterized in that: The concrete used for the retaining wall is C20 concrete.

3. The culvert inlet flood control and slag discharge retaining wall according to claim 1 or 2, characterized in that: The overall height of the slag retaining wall is ≥3m.

4. The culvert inlet flood control and slag discharge retaining wall according to claim 1, characterized in that: The top of the drainage gap extends through the top of the retaining wall, so that the retaining wall forms several horizontally independent retaining dams.

5. The culvert inlet flood control and slag discharge retaining wall according to claim 4, characterized in that: The width of the drainage gap is ≤1m, and the distance between two adjacent drainage gaps is ≥2m.

6. The culvert inlet flood control and slag discharge retaining wall according to claim 1 or 4, characterized in that: The barrier structure consists of I-beams embedded at both ends in the slag retaining wall; the spacing between the I-beams located in the same drainage gap is ≥50cm.

7. The culvert inlet flood control and slag discharge retaining wall according to claim 1, characterized in that: The bottom of the retaining wall is provided with an integral concrete foundation, which extends at least 30cm beyond the bottom of the retaining wall.

8. The culvert inlet flood control and slag discharge retaining wall according to claim 1, characterized in that: The I-beam has a specification of I20a.

9. A flood control and drainage structure for a culvert inlet, characterized in that: Includes culverts, gullies, and the flood control and drainage retaining wall at the culvert inlet as described in any one of claims 1-8; The distance between the slag retaining wall and the culvert opening is ≥2m.

10. The culvert inlet flood control and drainage structure according to claim 9, characterized in that: The two ends of the retaining wall extend to the gully wall and connect with the gully wall.

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