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Culvert structure, sand protection device and subgrade system

A protective device and culvert technology, which is applied in the direction of protective equipment, underwater structures, infrastructure engineering, etc., can solve the problems of ecological system degradation, ecological damage, hazards, etc., and achieve the effect of easy construction, convenient maintenance, and strong feasibility

Active Publication Date: 2019-01-25
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) Serious damage to the ecology
In extremely arid areas, the ecosystem itself is very fragile, and these damages will cause great difficulties for the self-recovery of the ecosystem, and even cause a chain reaction of ecosystem degradation.
(4) Difficulty in post-maintenance
The former will consume a lot of manpower, financial resources, and material resources, and most of the roads damaged by sand are relatively remote, and it is very difficult to clean them manually; big hazard

Method used

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  • Culvert structure, sand protection device and subgrade system
  • Culvert structure, sand protection device and subgrade system
  • Culvert structure, sand protection device and subgrade system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] see figure 1 and figure 2 , the embodiment of the present invention provides a culvert structure, which is suitable for any railway track, and is especially suitable for the sandy section of the railway in the Gobi windy area. The Gobi windy area has the characteristics of single strong wind direction and high wind speed. The technical solution of the present invention can take advantage of the characteristics of single main wind direction and high wind speed in the Gobi strong wind area, and can comprehensively adopt various sand transport and sand guiding measures. This embodiment is suitable for the case where the main wind direction is substantially perpendicular to the length direction of the track 6 . The width direction of the hole body 10 is parallel to the length direction of the track 6 .

[0054] see figure 1 , The culvert structure includes a cave body 10, the outside of the cave body 10 and / or the inside of the cave body 10 is formed with a wind guiding...

Embodiment 2

[0083] see image 3 and Figure 4 , Embodiment 2 of the present invention provides a kind of culvert structure, and its technical solution is different from the technical solution of the above-mentioned embodiment in the following aspects: In this embodiment, the cave body 10 includes two, and the support structure 14 is used to separate the two cave bodies 10 .

[0084] see image 3 , the support structure 14 has a triangular structure at the positions of the openings on the windward side and the leeward side, which is easy to guide the wind.

[0085] see image 3 , when the culvert structure includes two or more holes 10 , in each hole 10 , a row of wind guiding piles 3 can be arranged, and the wind guiding piles 3 are basically arranged along the central axis of the hole 10 .

[0086] In a double-hole or multi-hole culvert structure, the first wind guide wall 1 and the second wind guide wall 2 can only be on both sides of the width direction of the overall structure forme...

Embodiment 3

[0095] The first two embodiments are mainly suitable for sandy road sections with a single main wind direction and a relatively large or perpendicular angle with the railway in the Gobi windy area. For a road section with a single main wind direction but a small angle between the main wind direction and the railway, the culvert body can have a certain included angle with the length direction of the railway, and the length direction of the cave body 10 is consistent with the main wind direction.

[0096] see Figure 5 , in this embodiment, the central axis of the cave body 10 is parallel to the main wind direction, and the main wind direction is not perpendicular to the length direction of the track 6, but intersects obliquely. The first wind guide wall 1 , the second wind guide wall 2 , and the wind guide pile 3 described above are also applicable to the cave structure of this embodiment. The angle settings of the first wind guiding wall 1 , the second wind guiding wall 2 , a...

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Abstract

The invention discloses a culvert structure, a wind sand protection device and a roadbed system, and relates to the field of railway wind sand protection. The culvert structure, the wind sand protection device and the roadbed system are used for achieving the purposes of guiding wind sand to pass a roadbed without being stacked near the roadbed and preventing wind sand hazards. The culvert structure comprises a culvert body. The outer side and / or the interior of the culvert body forms a wind guide structure for guiding the direction of wind into the culvert body. The length direction of the culvert body is parallel to the main wind direction of the wind. According to the technical scheme, through the characteristics of heavy wind, the situation that wind sand is intercepted on one side of a railway in a traditional railway wind sand prevention method is subverted, instead, the wind sand is guided to pass a culvert and is not stacked near the roadbed, and finally the purpose of preventing the wind sand hazards is achieved.

Description

technical field [0001] The invention relates to the field of railway sand prevention and control, in particular to a culvert structure, a wind sand protection device and a roadbed system. Background technique [0002] my country has a large area of ​​Gobi desert, and the hazard of wind and sand is one of the most important factors restricting the construction of railways in Gobi desert and affecting the safety of railway traffic. Engineering sand control measures can be divided into sand-fixing measures, sand-blocking measures, sand-transporting measures and sand-guiding measures according to their functions and properties. Traditional railway sand control projects are mainly set up according to the engineering measures of "mainly blocking (sand) fixing (sand), the purpose of which is to block the wind and sand flow outside the safe range of the railway, so that the sand does not approach the roadbed, thereby reducing the wind and sand flow. hazards to the railway. These m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E01F7/02E02D3/00E01C3/00
CPCE01C3/00E01F7/02E02D3/00E02D29/045
Inventor 肖建华屈建军
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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