CN205999735U - A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure - Google Patents
A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure Download PDFInfo
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- CN205999735U CN205999735U CN201620840187.0U CN201620840187U CN205999735U CN 205999735 U CN205999735 U CN 205999735U CN 201620840187 U CN201620840187 U CN 201620840187U CN 205999735 U CN205999735 U CN 205999735U
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Abstract
The utility model is related to a kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure.Vertical temperature adjusting measure based on tradition ventilation pipe, tile stone material is extremely difficult to expect cooling-down effect.The utility model in top surface making bed course and the road surface structare layer successively from bottom to top of roadbed, on the top surface of roadbed, the both sides of road surface structare layer assemble ventilation block along road direction, add tile stone between ventilation block and road surface structare layer.The structure regulating target directs at frozen soil highway subgrade heat sink, and under solar radiation effect, when pavement temperature starts to raise, tile stone material starts and road surface structare layer heat convection, and heat is laterally derived, and under the drainage of building block air vent, imports air.Structural material wide material sources, inexpensive, simple structure, cooling effectiveness are high, and have extremely strong adaptability to the effect of this area's Frozen-thawed cycled, and can use cooperatively with the vertical regulation measure of tradition, strengthen subgrade in permafrost soil zone temperature adjusting effect.
Description
Technical field
The utility model is related to transport development technical field, and in particular to a kind of Permafrost Area freeze thawing resistance heat accumulation laterally expands
Dissipate ventilation curb structure.
Background technology
Permafrost Area dark-coloured pavement heat absorption problem, the emphasis of area's road engineering research of always trembling with fear.Existing research money
Material shows：High altitudes and cold area, the build of road change hot revenue and expenditure state along the line, and blacktop bottom temperature is far above day
So earth's surface, about 8-14 DEG C of the temperature difference, are recepted the caloric than natural earth's surface increase about 18% after building dark-coloured pavement along the line.Black asphalt pavement
Lasting heat-absorbing action causes the roadbed permafrost that underlies constantly to heat up, melt, and frozen soil upper limit constantly declines, and then generates
The roadbed damage in permafrost regions such as sedimentation, wave, frost boiling, especially in high temperature, hight-ice-content permafrost section, Disease Characters particularly show
Write, serious reduction this area road passage capability, endanger highway operation safety.
In order to safeguard permafrost area embankment stability, the angle of regulation and control of lowering the temperature from roadbed, domestic and international researcher
With porous media materials such as tile stone, ventilation ducts as cooling material, it is proposed that various temperature regulation measure, and Qinghai-Tibet Railway,
Highway and national highway G214 line are tested.For example：Lai Yuanming, Zhang Mingyi etc. are based on porous medium theory, system research piece
Block stone material cooling mechanism, it is proposed that multiple laying structure forms of piece block-stone embankment, and achievement in research is applied to green grass or young crops
Railway entity project is hidden, achieves good effect；Li Ning, Li Guoyu et al. propose ventilation pipe foundation, by pre-buried pipe of cement
Cold air is introduced roadbed by road, and then reduces roadbed temperature effect, is continued in research, by installing in concrete duct behind
Temperature control insulated door, it is achieved that under the conditions of different outside air temperatures, ventilation duct is automatically turned on and closing, to a certain degree alleviates summer heat
Amount enters the problem of roadbed；Liu Wei, Jiang Yexue people etc. propose a kind of ventilation block structure with holes, and are applied to roadbed body
Interior, on the one hand strengthen subgrade stiffness, on the other hand, using hole draught effect, regulation subgrade temperature, but due to divulging information in building block
Hole only 10-15cm, compared to 10m fabric width second grade highway, or even the highway of 26m fabric width, too small aperture, expection can be reached
Ventilation effect, need long-term observation data verification.Additionally, above-mentioned roadbed temperature regulation measure, is all to act on roadbed
Body, and for the road surface structare layer temperature adjusting of solar radiation is directly absorbed, but rarely have research to be related to；It is oriented to from regulation and control hot-fluid
Analysis, all measures are all vertical temperature adjustings, that is, prevent heat from being propagated downwards, be but seldom related to horizontal heat conduction, accumulation of heat scheme.
With China's Regional Economy in Western sustainable development, this area is more highlighted to advanced road demand, high-grade
Under the operating mode that road fabric width nearly doubles, the vertical temperature adjusting measure based on tradition ventilation pipe, tile stone material is difficult
Expected cooling-down effect is reached, should be aided in using other measures.
Content of the invention
The purpose of this utility model is to provide a kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure, leads to
Ventilation block aperture is crossed, heat is discharged curb, reduce black asphalt pavement heat absorption, regulate and control frozen earth roadbed temperature, protect under which
The ever-frozen ground in portion.
The technical scheme adopted by the utility model is：
A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure, it is characterised in that：
In top surface making bed course and the road surface structare layer successively from bottom to top of roadbed, under road surface structare layer includes from bottom to top
Basic unit, upper basic unit, cutting optimal and upper layer, bed course are embedded in roadbed top surface；
On the top surface of roadbed, the both sides of road surface structare layer assemble ventilation block, ventilation block and road along road direction
Add tile stone between the structure sheaf of face.
Ventilation block top surface is flushed with road surface structare layer top surface, ventilation block inner vertical, outside and the roadbed side slope gradient
Unanimously；
Ventilation block is assembled using inorganic binder as bonding agent.
Tile stone particle diameter is 20cm-40cm, and porosity controls between 20%-40%, piles up thickness and be not less than 50cm.
The utility model has advantages below：
1st, the utility model directly acts on road surface structare layer and carries out temperature adjusting, and goal of regulation and control directs at frozen earth roadbed heat absorption
Source, regulation and control efficiency are highly efficient；The horizontal conductive structure, can be used cooperatively with the vertical thermal resistance regulation measure of tradition, improve for many years
Permafrost region temperature adjusting effect；
2nd, the moisture content in the special curb structure, can discharge along ventilation block aperture, and tile stone material is in more drying
Under environment, there is stronger adaptability to the effect of Permafrost Area Frozen-thawed cycled.
3rd, simple structure, main material tile stone, to draw materials conveniently, low cost, ventilation block are prefabrication, and intensity is high, whole
Body is good, and unified installation is assembled, and construction technology is easy, practical, with preferable application prospect.
Description of the drawings
Fig. 1 is curb transversary schematic diagram.
Fig. 2 is ventilation block structural representation.
Fig. 3 is curb vertical structure schematic diagram.
In figure, 1- upper layer；2- cutting optimal；The upper basic unit of 3-；4- goes to a grassroots level；5- bed course；6- roadbed；7- ventilation block；8-
Tile stone.
Specific embodiment
The utility model is described in detail with reference to specific embodiment.
A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure that the utility model is related to, in roadbed 6
Top surface making bed course 5 and road surface structare layer successively from bottom to top, road surface structare layer includes 4, the upper basic unit that goes to a grassroots level from bottom to top
3rd, cutting optimal 2 and upper layer 1, bed course 5 are embedded in 6 top surface of roadbed.On the top surface of roadbed 6, the both sides Yan Dao of road surface structare layer
Road direction assembles ventilation block 7, adds tile stone 8 between ventilation block 7 and road surface structare layer.
7 top surface of ventilation block is flushed with road surface structare layer top surface, 7 inner vertical of ventilation block, outside and 6 Slope of roadbed
Degree is consistent.Ventilation block 7 is assembled using inorganic binder as bonding agent.
8 particle diameter of tile stone is 20cm-40cm, and porosity controls between 20%-40%, piles up thickness and be not less than 50cm.
The abundant bonding pad block-stone embankment of the utility model and the advantage of ventilation pipe foundation, and this is applied to frozen soil curb,
Using tile stone, ventilation block is the special ventilation curb structure of main material, is on the one hand made using block stone, ventilation block convection current
With directly acting on road surface structare layer, regulate and control its temperature, on the other hand, road surface is flowed to the moisture content of curb, piece block stone layer along logical
Wind building block aperture excludes, and improves curb freezing-thawing resistance by acting on road surface structare layer heat convection, road surface is absorbed too
Positive radiations heat energy is derived and is stored in tile stone material, and eventually through ventilation block aperture, heat is discharged curb, is reduced
Black asphalt pavement absorbs heat, and roadbed temperature is frozen in regulation and control, protects the ever-frozen ground of its underpart.Additionally, the moisture content in curb, also can be by
Ventilation block is discharged, and tile masonry is a kind of typical bulk material, in the dry state Frozen-thawed cycled effect is had extremely strong
Adaptability.
For ensureing convection effects, tile stone material particle diameter is advisable with 20-40cm, and laying depth is not lower than 50cm；For
It is easy to curb structure heat moisture content to discharge, ventilation block aperture should be connection, is guarantee curb structural stability, ventilation block
Should carry out grouting construction with inorganic binders such as cement, lime as binding agent, to resist the lateral pressure from block stone material；Should
Curb structure is continuously arranged along road surface running vehicle direction, to ensure its temperature adjusting effect.
Under solar radiation effect, when road surface temperature starts to raise, tile stone material is acted on by heat convection, by road
In the structure sheaf of face, heat imports itself, and discharges heat by ventilation block aperture, adjusts pavement temperature purpose to reach；Come
From the moisture content that road surface is collected, can be excluded by ventilation block aperture, it is ensured that the structure is improved structure and resists in more drying regime
Freeze thawing ability.
During construction：
（1）Subgrade construction is finished, and before constructing road foundation, is started laying ventilation block 7 in 4 edges of going to a grassroots level and is constructed,
, at side slope, longitudinal direction is along the continuous making of direction of traffic for the horizontal making of roadbed.
（2）Ventilation block 7 is with inorganic binders such as cement mortar, lime mortars as binding agent, it is ensured that with sufficient intensity,
In work progress, building block ventilation duct insertion is should ensure that, enable heat, moisture content in block stone smoothly to derive curb.
（3）After the completion of ventilation block construction, 4, the upper basic unit 3 that carries out going to a grassroots level, cutting optimal 2, upper layer 1 are constructed.
（4）After pavement construction is finished, start gap between structure sheaf and ventilation block and pile up tile stone 8, tile stone grain
Footpath is advisable with 20cm-40cm.
（5）After tile clitter is built, 3 tons of -5 tons of baby rollers can be adopted, not opening under Vibration Condition carries out voltage stabilizing construction, but
Construction operation need to be carried out after ventilation block grouts construction 7 days.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion that technical solutions of the utility model are taken, are claim institute of the present utility model
Cover.
Claims (3)
1. a kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation is divulged information curb structure, it is characterised in that：
In roadbed（6）Top surface making bed course successively from bottom to top（5）And road surface structare layer, road surface structare layer includes from bottom to top
Go to a grassroots level（4）, upper basic unit（3）, cutting optimal（2）And upper layer（1）, bed course（5）Embedded roadbed（6）Top surface；
In roadbed（6）Top surface on, the both sides of road surface structare layer assemble ventilation block along road direction（7）, ventilation block（7）
Add tile stone between road surface structare layer（8）.
2. a kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation according to claim 1 is divulged information curb structure, its feature
It is：
Ventilation block（7）Top surface is flushed with road surface structare layer top surface, ventilation block（7）Inner vertical, outside and roadbed（6）Side slope
The gradient is consistent；
Ventilation block（7）Assemble using inorganic binder as bonding agent.
3. a kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation according to claim 1 is divulged information curb structure, its feature
It is：
Tile stone（8）Particle diameter is 20cm-40cm, and porosity controls between 20%-40%, piles up thickness and be not less than 50cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620840187.0U CN205999735U (en) | 2016-08-05 | 2016-08-05 | A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure |
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| CN201620840187.0U CN205999735U (en) | 2016-08-05 | 2016-08-05 | A kind of Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087636A (en) * | 2016-08-05 | 2016-11-09 | 中交第公路勘察设计研究院有限公司 | Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure |
| CN109577149A (en) * | 2018-12-03 | 2019-04-05 | 周峻宇 | A kind of kerbstone Paving Techniques and paver |
| CN112342858A (en) * | 2020-10-27 | 2021-02-09 | 东南大学 | Permafrost region precast hollow slab base pavement structure |
-
2016
- 2016-08-05 CN CN201620840187.0U patent/CN205999735U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087636A (en) * | 2016-08-05 | 2016-11-09 | 中交第公路勘察设计研究院有限公司 | Permafrost Area freeze thawing resistance heat accumulation horizontal proliferation ventilation curb structure |
| CN109577149A (en) * | 2018-12-03 | 2019-04-05 | 周峻宇 | A kind of kerbstone Paving Techniques and paver |
| CN109577149B (en) * | 2018-12-03 | 2021-01-26 | 滁州市宏图建设有限公司 | Curb paver |
| CN112342858A (en) * | 2020-10-27 | 2021-02-09 | 东南大学 | Permafrost region precast hollow slab base pavement structure |
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