CN202450406U - Permeable-wall ventilating duct and fragment stone composite road bed - Google Patents
Permeable-wall ventilating duct and fragment stone composite road bed Download PDFInfo
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- CN202450406U CN202450406U CN 201120560271 CN201120560271U CN202450406U CN 202450406 U CN202450406 U CN 202450406U CN 201120560271 CN201120560271 CN 201120560271 CN 201120560271 U CN201120560271 U CN 201120560271U CN 202450406 U CN202450406 U CN 202450406U
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- road bed
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- shiver stone
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Abstract
The utility model relates to a permeable-wall ventilating duct and fragment stone composite road bed. An integral road bed of an expressway cannot meet the requirement of a design index due to enlarged heat absorption area of a wide pavement and frozen soil protection realized by a single thermal probe road bed independently. The permeable-wall ventilating duct and fragment stone composite road bed is provided with a pavement structural layer; a fragment stone layer is arranged below the pavement structural layer; the fragment stone layer is internally provided with ventilating ducts vertical to the road bed direction; the nozzles of the ventilating ducts lead to the outside of the fragment stone layer; the walls of the ventilating ducts are provided with open pores; and the distance between every two ventilating ducts is 2m. A ventilating duct road bed structure adopted by the utility model can be used in complex geological environments such as high temperature and frozen soil with high ice content and can be used for remarkably reducing the temperature of underlied ever-frozen soil, improving the convection effect in a fragment stone road bed and protecting an ever-frozen soil structure.
Description
Technical field
The utility model belongs to the traffic engineering technical field, is specifically related to a kind of transparent wall vent pipe shiver stone combined type roadbed.
Background technology
The district builds high-grade highway at ever-frozen ground; The engineering problem that is caused will be more complicated than low-grade highway, be the speedway of characteristic with the wide cut road surface especially, and will be more strong to the thermal agitation of roadbed; Early-stage Study shows; The wide cut flexible pavement is very remarkable to the influence of frozen earth roadbed heat stability, and especially annual mean heat flow in bottom surface significantly increases than common road, and the hot-fluid that increases mainly concentrates on the centre of embankment bottom surface; And produce " heat build-up effect ", cause the degeneration process of ever-frozen ground to be accelerated.Existing frozen earth roadbed engineering measure at present all is to be directed against low-grade highway roadbed (below the 10m) in a narrow margin; Processing to speedway wide cut roadbed (21.5m or 24.5m) does not also have the corresponding engineering measure at present, and since traditional single engineering measure when concrete the use, great majority all have stronger ageing; Or main warm season work; Or can play a positive role at cold season, at protection frozen soil and when administering subgrade defect, have certain limitation.
When route during through ever-frozen ground district ice-rich permafrost, full freezing dirt road section, at Class II highway and speedway separated subgrade, sheet piece stone roadbed is to adopt engineering measure the most widely.But at speedway monolithic roadbed, because the heat absorption on wide cut road surface strengthens, the width of sheet piece stone roadbed increases simultaneously, has a strong impact on the scope and the intensity of its convective cooling, adopts this measure can not satisfy the requirement of design objective separately.According to the early-stage Study achievement; The air chimney roadbed is a kind of positive cooling road structure; Can be used for complicated geological environments such as high temperature, hight-ice-content permafrost, can significantly reduce the temperature of the ever-frozen ground that underlies, show the good result that it initiatively protects the strong convection of ever-frozen ground.
Summary of the invention
The purpose of the utility model provides a kind of transparent wall vent pipe shiver stone combined type roadbed that utilizes air chimney to strengthen convection effects in the shiver stone roadbed, protection ever-frozen ground structure.
The technical scheme that the utility model adopted is:
A kind of transparent wall vent pipe shiver stone combined type roadbed is provided with road surface structare layer, it is characterized in that:
Described road surface structare layer below is provided with the shiver stone layer, and shiver stone is provided with the air chimney vertical with road-trend layer by layer, and it is outside that the mouth of pipe of air chimney leads to the shiver stone layer;
The tube wall of described air chimney is provided with perforate.
The shiver stone particle diameter of described shiver stone layer is 15～30cm, and floor height is 1.2 m or 1.5m.
Described air chimney adopts the prefabricated reinforced concrete pipe, caliber 40cm, and the aperture of the perforate on its tube wall is 5cm, pitch of holes 5～8cm;
The tube pitch of described air chimney is 2m.
The utlity model has following advantage:
The air pipeline based structures that adopts in the utility model; Can be used for complicated geological environments such as high temperature, hight-ice-content permafrost; Can significantly reduce the temperature of the ever-frozen ground that underlies; Strengthen the convection effects in the shiver stone roadbed, the transparent wall vent pipe shiver stone combined type roadbed of protection ever-frozen ground structure is to remedy the deficiency that the shiver stone roadbed is used at the wide cut roadbed.
Simultaneously,, air chimney is designed to wall construction, has air chimney roadbed strong convection and the wide two-fold advantage of shiver stone roadbed influence basin, can satisfy the construction requirements of ever-frozen ground district speedway wide cut roadbed for strengthening the strong convection effect of air chimney.
Description of drawings
Fig. 1 is the utility model sketch map.
Among the figure, 1-guardrail, 2-road surface structare layer, 3-central authorities separating belt, 4-shiver stone layer, 5-air chimney.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is carried out detailed explanation.
The described a kind of transparent wall vent pipe shiver stone combined type roadbed of the utility model is provided with between road surface structare layer 2, two tracks of two-way traffic central separating belt 3 is set, and the both sides, track are provided with guardrail 1.Road surface structare layer 2 belows are provided with shiver stone layer 4, and the shiver stone particle diameter of shiver stone layer 4 is 15～30cm, and floor height is 1.2 m or 1.5m, and general ice-rich permafrost district adopts 1.2 m, and full ice permafrost region adopts 1.5m.Be provided with the air chimney vertical with road-trend 5 in 4 layers on the shiver stone layer, the mouth of pipe of air chimney 5 leads to shiver stone layer 4 outside, and air chimney 5 adopts prefabricated reinforced concrete pipes, caliber 40cm, the 20cm apart from the face of land; Be to strengthen the convection intensity of shiver stone roadbed, lay the circular hole of 4 row aperture 5cm, pitch of holes 5～8cm, different lines dislocation cloth hole in the latter half of ventilation tube coupling; The tube pitch of air chimney 5 is 2m.Frozen soil complicated geological condition highway section can closely be arranged air chimney, forms the continuous type air chimney.
Claims (3)
1. a transparent wall vent pipe shiver stone combined type roadbed is provided with road surface structare layer (2), it is characterized in that:
Described road surface structare layer (2) below is provided with shiver stone layer (4), is provided with the air chimney vertical with road-trend (5) in shiver stone layer (4) layer, and the mouth of pipe of air chimney (5) leads to shiver stone layer (4) outside;
The tube wall of described air chimney (5) is provided with perforate.
2. a kind of transparent wall vent pipe shiver stone combined type roadbed according to claim 1 is characterized in that:
The shiver stone particle diameter of described shiver stone layer (4) is 15～30cm, and floor height is 1.2 m or 1.5m.
3. a kind of transparent wall vent pipe shiver stone combined type roadbed according to claim 1 and 2 is characterized in that:
Described air chimney (5) adopts the prefabricated reinforced concrete pipe, caliber 40cm, and the aperture of the perforate on its tube wall is 5cm, pitch of holes 5～8cm;
The tube pitch of described air chimney (5) is 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120560271 CN202450406U (en) | 2011-12-29 | 2011-12-29 | Permeable-wall ventilating duct and fragment stone composite road bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120560271 CN202450406U (en) | 2011-12-29 | 2011-12-29 | Permeable-wall ventilating duct and fragment stone composite road bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202450406U true CN202450406U (en) | 2012-09-26 |
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ID=46866278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120560271 Expired - Fee Related CN202450406U (en) | 2011-12-29 | 2011-12-29 | Permeable-wall ventilating duct and fragment stone composite road bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202450406U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485354A (en) * | 2013-10-17 | 2014-01-01 | 兰州理工大学 | Frame-aeration cooling anchor pipe structure for keeping frozen soil slope stable and construction method |
| CN104452508A (en) * | 2014-12-12 | 2015-03-25 | 中交第一公路勘察设计研究院有限公司 | Large-scale frozen roadbed cooling structure capable of strengthening convective cooling efficiency of rock blocks |
| CN106676988A (en) * | 2016-12-29 | 2017-05-17 | 中交第公路勘察设计研究院有限公司 | Construction method for permeable wall type ventiduct roadbed |
| CN106676987A (en) * | 2016-12-29 | 2017-05-17 | 中交第公路勘察设计研究院有限公司 | Construction method for rubble stone-ventilating board composite roadbed of expressway at permafrost area |
| CN107201700A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | Clip automatic control ventilation pipe foundation between one kind ventilation plumber block stone |
| CN107201708A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | A kind of compound cold-storage roadbed suitable for permafrost region road engineering |
| CN107201705A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | A kind of method for promoting ventilation pipe foundation ventilation efficiency |
| CN108118571A (en) * | 2018-01-26 | 2018-06-05 | 四川农业大学 | Suitable for the direct drawing-in type active aeration-cooling device of subgrade in permafrost soil zone |
-
2011
- 2011-12-29 CN CN 201120560271 patent/CN202450406U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485354A (en) * | 2013-10-17 | 2014-01-01 | 兰州理工大学 | Frame-aeration cooling anchor pipe structure for keeping frozen soil slope stable and construction method |
| CN104452508A (en) * | 2014-12-12 | 2015-03-25 | 中交第一公路勘察设计研究院有限公司 | Large-scale frozen roadbed cooling structure capable of strengthening convective cooling efficiency of rock blocks |
| CN107201700A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | Clip automatic control ventilation pipe foundation between one kind ventilation plumber block stone |
| CN107201708A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | A kind of compound cold-storage roadbed suitable for permafrost region road engineering |
| CN107201705A (en) * | 2016-03-17 | 2017-09-26 | 中国科学院寒区旱区环境与工程研究所 | A kind of method for promoting ventilation pipe foundation ventilation efficiency |
| CN106676988A (en) * | 2016-12-29 | 2017-05-17 | 中交第公路勘察设计研究院有限公司 | Construction method for permeable wall type ventiduct roadbed |
| CN106676987A (en) * | 2016-12-29 | 2017-05-17 | 中交第公路勘察设计研究院有限公司 | Construction method for rubble stone-ventilating board composite roadbed of expressway at permafrost area |
| CN108118571A (en) * | 2018-01-26 | 2018-06-05 | 四川农业大学 | Suitable for the direct drawing-in type active aeration-cooling device of subgrade in permafrost soil zone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |