CN205399114U - Natural convection ventilation pipe frozen soil roadbed structure - Google Patents
Natural convection ventilation pipe frozen soil roadbed structure Download PDFInfo
- Publication number
- CN205399114U CN205399114U CN201620105822.0U CN201620105822U CN205399114U CN 205399114 U CN205399114 U CN 205399114U CN 201620105822 U CN201620105822 U CN 201620105822U CN 205399114 U CN205399114 U CN 205399114U
- Authority
- CN
- China
- Prior art keywords
- uprise
- short
- pipe
- long
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model provides a natural convection ventilation pipe frozen soil roadbed structure, includes road bed, long uprise, pipe chute, short uprise and rain -proof snow cap, long uprise is placed in the schattenseite of road bed, and short uprise is placed in the tailo of road bed, long uprise passes through the pipe chute with short uprise and is connected, the pipe chute is greater than 25o with the ground angle, long uprise is equipped with rain -proof snow cap with short uprise outer end. The utility model discloses utilize long uprise and short intervascular pressure differential of standing upright, force the cold air to flow in the pipe chute, reach the cryogenic purpose of road bed. The utility model discloses can the at utmost save cold energy collection in winter in the ventilation pipe, have the important function to the stability of keeping the frozen soil basis.
Description
Technical field
This utility model relates to Permafrost Area road structure, specifically a kind of frozen earth roadbed structure of natural convection ventilation pipe.
Background technology
In Permafrost Area, owing to the strong endothermic effect of highway black asphalt pavement makes the degeneration of bottom ever-frozen ground more violent.Roadbed heat is melted subsidence problems and is also solved very well so far.Along with the progressively enforcement of " national expressway network planning ", wherein about 30% will be travelling through Frozen Area, 2% pass through Permafrost Area, particularly Qinghai-Tibet highway will be travelling through the Permafrost Area that China is the most wide.The increase of express highway pavement width and the increase of heat absorption capacity, engineering difficulty strengthens.Current block Gravel road base, heat pipe roadbed and composite road bed all to there is difficulty of construction big, construction quality is difficult to ensure that the deficiency high with cost.Existing ventilation pipe foundation works also with the principle of forced ventilation.The ventilation pipe foundation utilizing forced ventilation principle can be influenced by hot blast in summer and brings the adverse effect of heat into, causes the temperature difference in roadbed to strengthen, and subgrade stability is unfavorable.
Therefore, the relatively low road structure of a kind of easy construction, cost is researched and developed the stability maintaining Permafrost Area roadbed is significant.
Utility model content
In view of above-mentioned, the purpose of this utility model is in that to provide the air pipeline based structures of a kind of free convection, in order to maintain stablizing of Permafrost Area roadbed.
Realize the purpose of this utility model be the technical scheme is that
A kind of frozen earth roadbed structure of natural convection ventilation pipe, including roadbed, long upright pipe, inclined tube, short upright pipe and rain and snow cap, long upright pipe is positioned over the Schattenseite of roadbed, and short upright pipe is positioned over the tailo of roadbed；Long upright pipe is connected by inclined tube with short upright pipe.
Above-mentioned inclined tube and ground-angle are more than 25o.
Above-mentioned length is uprightly managed and is provided with rain and snow cap with short upright pipe outer end.
Above-mentioned rain and snow cap is possible to prevent rain, snow to enter in pipe.
Operation principle of the present utility model is:
Pressure differential between long upright pipe and short upright pipe, forces cold air at oblique Bottomhole pressure, reaches the purpose to roadbed refrigeration.
Advantage of the present utility model and generation provide the benefit that:
1, this utility model can avoid the problem that height laid by conventional forced ventilation pipe.Namely tradition ventilation pipeline base must overhead certain altitude；Operation principle of the present utility model is different from other ventilation pipe foundation, it is possible to ground proximity is laid.
2, this utility model roadbed both sides mouth of pipe is upward, and has rain and snow sunshade to keep off, it is possible to prevent drift-sand, rainwater from entering in pipe, and conventional flat opening ventilation pipe foundation has the unfavorable factor poured into by drift-sand blocking and excess surface water.
3, cold energy in winter can be at utmost collected and stored in basis by this utility model, has important function to maintaining stablizing of frozen soil basis.
4, this utility model adopts ventilation duct segmentation, and construction can be made convenient.
Accompanying drawing explanation
Fig. 1 is frozen earth roadbed cross-sectional view of the present utility model.
In figure: the short upright pipe of the upright pipe of 1-length 1,2-inclined tube 2,3-, 3-Roadbed Soil 4,5-rain and snow cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described further:
As it is shown in figure 1, a kind of frozen earth roadbed structure of natural convection ventilation pipe, including roadbed 4, long upright pipe 1, inclined tube 2, short upright pipe 3 and rain and snow cap 5, the upright pipe 1 of described length is positioned over the Schattenseite of roadbed 4, and described short upright pipe 3 is positioned over the tailo of roadbed 4；The upright pipe of described length 1 is connected by inclined tube 2 with short upright pipe 3；The upright pipe of described length 1 and short upright pipe 3 outer end are provided with rain and snow cap 5.
Angle between inclined tube 2 and ground is more than 25o.
Claims (2)
1. the frozen earth roadbed structure of natural convection ventilation pipe, including roadbed (4), long upright pipe (1), inclined tube (2), short upright pipe (3) and rain and snow cap (5), it is characterized in that: described length is uprightly managed (1) and is positioned over the Schattenseite of roadbed (4), and described short upright pipe (3) is positioned over the tailo of roadbed (4)；Described length is uprightly managed (1) and is connected by inclined tube (2) with short upright pipe (3).
2. a kind of frozen earth roadbed structure of natural convection ventilation pipe as claimed in claim 1, it is characterised in that: described length uprightly manages (1) and short upright pipe (3) outer end is provided with rain and snow cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105822.0U CN205399114U (en) | 2016-02-03 | 2016-02-03 | Natural convection ventilation pipe frozen soil roadbed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105822.0U CN205399114U (en) | 2016-02-03 | 2016-02-03 | Natural convection ventilation pipe frozen soil roadbed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205399114U true CN205399114U (en) | 2016-07-27 |
Family
ID=56451036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620105822.0U Expired - Fee Related CN205399114U (en) | 2016-02-03 | 2016-02-03 | Natural convection ventilation pipe frozen soil roadbed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205399114U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034756A (en) * | 2016-02-03 | 2017-08-11 | 中国科学院寒区旱区环境与工程研究所 | A kind of frozen earth roadbed structure of natural convection ventilation pipe |
| CN108316080A (en) * | 2017-01-17 | 2018-07-24 | 内蒙古大学 | Subgrade in permafrost soil zone actively cools down ventilation duct |
| CN110777592A (en) * | 2019-11-06 | 2020-02-11 | 中铁第一勘察设计院集团有限公司 | Low embankment ventilation pipe roadbed structure in plateau permafrost region |
| US11987937B1 (en) * | 2023-01-17 | 2024-05-21 | Northwest Institute Of Eco-Environment And Resources, Chinese Academy Of Sciences | Airflow-enhanced embankment ventilation structure, composite embankment structure, and construction method thereof |
-
2016
- 2016-02-03 CN CN201620105822.0U patent/CN205399114U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107034756A (en) * | 2016-02-03 | 2017-08-11 | 中国科学院寒区旱区环境与工程研究所 | A kind of frozen earth roadbed structure of natural convection ventilation pipe |
| CN108316080A (en) * | 2017-01-17 | 2018-07-24 | 内蒙古大学 | Subgrade in permafrost soil zone actively cools down ventilation duct |
| CN110777592A (en) * | 2019-11-06 | 2020-02-11 | 中铁第一勘察设计院集团有限公司 | Low embankment ventilation pipe roadbed structure in plateau permafrost region |
| US11987937B1 (en) * | 2023-01-17 | 2024-05-21 | Northwest Institute Of Eco-Environment And Resources, Chinese Academy Of Sciences | Airflow-enhanced embankment ventilation structure, composite embankment structure, and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205399114U (en) | Natural convection ventilation pipe frozen soil roadbed structure | |
| CN207512532U (en) | A kind of sponge-type road drainage structure | |
| CN103388294B (en) | Inverted T shape ventilation wide cut road structure | |
| CN107034756A (en) | A kind of frozen earth roadbed structure of natural convection ventilation pipe | |
| CN101586351A (en) | The air chimney of using in the engineering of Han Qu area | |
| CN101307586A (en) | Broken stone slope protector and air-duct composite roadbed | |
| CN2835328Y (en) | Frozen soil subgrade comprising ventilation concrete slab and block crushed stone | |
| CN203429522U (en) | Wide frozen earth roadbed structure | |
| CN2846476Y (en) | Block (crushed) stone quenching road bed | |
| CN204039866U (en) | A kind of embed-type permeable flush curb of porous asphalt pavement roadside drainage | |
| CN205999735U (en) | A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure | |
| CN201195817Y (en) | Convection current-ventilation combined subgrade | |
| CN205557220U (en) | Wind amasss husky berm frozen soil roadbed structure | |
| CN205382375U (en) | Permanent seal cooling bituminous pavement structure suitable for longitudinal gradient highway section of growing up | |
| CN106087636A (en) | Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure | |
| CN216947683U (en) | Frozen soil roadbed structure | |
| CN207003157U (en) | A kind of roadbed material of energy saving and environment friendly highway | |
| CN205420938U (en) | Hollow tube refrigeration roadbed structure | |
| CN201420272Y (en) | Combined-type vent pipe used in cold region engineering | |
| CN207793797U (en) | A kind of football pitch chinampa with plumbing function | |
| CN215164249U (en) | Composite roadbed with grooved ventilating duct and stone layer for cooling | |
| CN203429591U (en) | Ground surface deicing device | |
| CN105545340A (en) | Automatic wind catching and ventilating system at top of urban highway tunnel | |
| CN202466346U (en) | Cryolithozone road composite roadbed structure | |
| CN1230592C (en) | Heat absorption thermal insulation compound apparatus for controlling salivary ice of road building |
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: 20160727 Termination date: 20180203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |