CN108316081A - A kind of temperature and humidity control system for frozen ground regions road structure - Google Patents
A kind of temperature and humidity control system for frozen ground regions road structure Download PDFInfo
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- CN108316081A CN108316081A CN201810372940.1A CN201810372940A CN108316081A CN 108316081 A CN108316081 A CN 108316081A CN 201810372940 A CN201810372940 A CN 201810372940A CN 108316081 A CN108316081 A CN 108316081A
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- roadbed
- temperature
- heating
- draining board
- water draining
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of temperature and humidity control system for frozen ground regions road structure, including it is set to the thermal insulation layer of the waterproof and water drainage system of roadbed lower part, heating device and roadbed top in the middle part of roadbed；The waterproof and water drainage system includes the substrate composite water draining board for being set to roadbed bottom, and gutter is respectively equipped in the substrate composite water draining board both sides, is freezed at line equipped with herringbone composite water draining board above substrate composite water draining board.The present invention gives full play to the efficient heat-conductive characteristic that heating wire efficiently generates heat with heating tube, be conducive to the evaporation of liquid water in subgrade soils, in conjunction with waterproof/drainage structure and can be the solar cell that heating device is powered for a long time, ensure that subgrade soils are chronically at low-water-content state, freezing soil is prevented, the deformation of roadbed is effectively inhibited.
Description
Technical field
The invention belongs to cyopedology fields, and in particular to a kind of humiture for frozen ground regions road structure
Control system.
Background technology
In High-cold regions highway, railway construction, often there are frost zones for foundation of road bed, since frost zone is special
Physical property, under unfreezing, to roadbed damage even deform, the operation of highway, railway is caused huge
Security risk.Especially west Sichuan plateau belongs to subfrigid zone monsoon climatic region on climate characteristic and the friendship of plateau continental climate is rubbed
Area has a moderate climate mostly cold, also more rainfalls, in rainy season set, can accumulate a large amount of moisture in roadbed, after Withdrawal quickly into
Enter freezing period, at this moment wants to prevent frost heave that from needing very more heats, and then timely exhaust or evaporate inside roadbed
Moisture seems extremely important, it is necessary to adopt an effective measure and solve the disaster that this area's frozen soil freeze thawing generates.
The patent of invention of CN201010217612.8 provides a kind of roadbed knot of prevention frozen ground regions road disease
Structure, tunneling boring is laid with one layer of composite water drain-proof plate within the scope of foundation soil original ground roadbed bottom width when roadbed filling, multiple
It closes and fills lower embankment filled soil on drainable waterproofing plate to the deep absolute altitude of road maximum jelly, be laid with maximum depths of freezing along roadbed tunneling boring again and answer
Drainable waterproofing plate is closed, continues to fill embankment base soil to design embankment absolute altitude, roadbed top surface tunneling boring is laid with three-dimensional soil on roadbed
Work grid freezes depths, embankment bottom original ground tunneling boring laying composite water drain-proof plate, in roadbed top surface along roadbed in road maximum
Cross-sectional direction be laid with solid geogrid, the lower substrate composite water drain-proof plate being laid between embankment filled soil and foundation soil it is compound
Geomembrane is upward, and it is downward to consider water geotextiles.It reduces roadbed humidity, improve roadbed overall stiffness, reduce frost zone
Regional the Frost Hazard of Road.But the invention only reduces roadbed humidity, can not control temperature, still have jelly under unfreezing
Evil generates.
CN201710813729.4 invention provide it is a kind of prevention seasonal frozen ground subgrade frost heave disaster heating system and
Its installation method, heating system include heating device, temperature control device and for electric installation, and heating device is mounted in roadbed；Heating
Device includes hot pin, heating tube, and heating wire is disposed in heating tube, and heating tube is mounted on the lower end of hot pin, and heating wire is looped around
The evaporator section of the hot pin；In roadbed and the condensation segment of hot pin and/or heating tube are equipped with temperature measuring equipment, and temperature is surveyed
Amount device is connect with temperature control device；Temperature control device is also respectively connected with heating wire and for electric installation, is used for heating wire for electric installation
Power supply.The efficient heat-conductive characteristic for giving full play to hot pin heats hot pin evaporator section using heating wire fever so that working medium is evaporated
And exchange heat in condensation segment and the soil body, soil temperature is improved, freezing soil is prevented.But the invention does not account for summer photovoltaic
Power supply is superfluous, and winter insufficient influence, and does not mention influence of the moisture to roadbed, and summer hot pin condensation segment is stopped, should
Device is stopped.
Thus, however it remains there is multigelation in frost zone, can not be chronically at relatively stable physical state
Problem.
Invention content
The object of the present invention is to provide a kind of temperature and humidity control system for frozen ground regions road structure, controls
With the generation for eliminating roadbed seasonality freeze injury, it is ensured that subgrade stability effectively inhibits the deformation of roadbed.
The technical solution adopted by the present invention is that：
A kind of temperature and humidity control system for frozen ground regions road structure, including it is set to the anti-of roadbed lower part
The thermal insulation layer of heating device and roadbed top in the middle part of drainage system, roadbed；The waterproof and water drainage system includes being set to roadbed bottom
The substrate composite water draining board in portion is equipped with gutter, above substrate composite water draining board in the substrate composite water draining board side
Freeze to be equipped with herringbone composite water draining board at line.
Further, the three V dimensional steel wire rack of the herringbone composite water draining board upward, composite geo-membrane downward, herringbone
The ratio of slope on slope is 3%；The composite geo-membrane of the substrate composite water draining board have waterproof function, direction upward, three-dimensional earthwork
Core is downward.
Further, the heating device and roadbed side are connected for electric installation and temperature and humidity controller, described warm and humid
Degree controller is connected by signal wire with for electric installation；Heating device is made of heating wire and heating tube, for electric installation by the sun
Energy battery pack, solar controller, accumulator, DC load composition, the temperature and humidity controller are existed by signal wire and setting
Temperature Humidity Sensor in roadbed is connected, and according to the temperature and humidity value that Temperature Humidity Sensor returns, whether control heating device
Electrified regulation is to adjust temperature and humidity.
Further, the heating wire is made of Nanoalloy material, and heating tube is coating steel pipe, the heating wire
Spiral surrounding is on the inside of heating tube, to improve heating effect.
Further, the thermal insulation layer is made of polystyrene foam plastics, and thick 0.05m is set to the road under road surface
In bed.
A kind of installation method of temperature and humidity control system for frozen ground regions road structure, including following step
Suddenly：
(1) it is laid with guarded drainage composite plate：It is laid with substrate composite water draining board in roadbed bottom, by its answering with water proof ability
Close geomembrane upward, three V dimensional steel wire rack downward, freeze to be laid with herringbone at line above substrate composite water draining board, in roadbed multiple
Drain bar is closed, downward, three V dimensional steel wire rack is upward for composite geo-membrane；
(2) Temperature Humidity Sensor is buried：On each embedded one group of Temperature Humidity Sensor of longitudinal upper 1/4 and 3/4 depth of roadbed, edge
Road direction of advance, the distance between adjacent Temperature Humidity Sensor are 15~25m；
(3) it is laid with heating device：It is laid with horizontal heating tube and cable in 1/2 depth of roadbed, heating tube uses back-shaped pipe
Road is arranged, and the distance between adjacent heating tube is 2~2.5m, and heating wire is prefabricated in heating tube；
(4) it is laid with thermal insulation layer：The polystyrol plastic foam plate of 0.05m thickness is laid at 0.35m below roadbed top surface, is made
For heat-insulating heat-preserving material；
(5) stringer and wiring：It is arranged on roadbed side for electric installation and temperature and humidity controller, later, passes through cable
It will be connected with temperature and humidity controller for electric installation, then temperature and humidity controller be connected by cable with the heating tube of heating device；
Meanwhile temperature and humidity controller is connected with heating device and Temperature Humidity Sensor by signal transmssion line respectively again.
Beneficial effects of the present invention：
The present invention gives full play to the efficient heat-conductive characteristic that heating wire efficiently generates heat with heating tube, is conducive to liquid water in subgrade soils
Evaporation, in conjunction with waterproof/drainage structure and can for a long time be heating device power solar cell, ensure subgrade soils locate for a long time
In low-water-content state, freezing soil is prevented, the deformation of roadbed is effectively inhibited.
It is embodied in：(1) heating wire of the invention instant heating temperature under the conditions of DC low-voltage reaches as high as 360
DEG C, it is not easy to break, can soak；Heating wire resistance value is uniform, more than myriametre maintains uniform resistance value；It can be in safe voltage 7-
It generates heat under 24v, solar panels voltage can be matched；The heating wire produced using nanotechnology is economized on electricity than existing heating wire
90%.(2) in the thermal insulation layer of roadbed top setting, effectively heating temperature can be kept not escape.(3) by being laid in roadbed bottom
Substrate composite water draining board, when temperature reduces frozen ground regions roadbed in winter, freeze water (including freezable liquid water is gentle
State freeze water) it is migrated from foundation soil to the lower roadbed direction of temperature under temperature gradient effect, at this point, substrate composite water draining board
Composite geo-membrane can effectively separate water translocation channel, prevent foundation soil moisture from entering roadbed, ground herein is road
Hypobasal is connected the interlayer of natural earth, and the moisture by being migrated upwards in ground can gather and by high water guide under composite geo-membrane
The three V dimensional steel wire rack infiltration of rate is discharged in the gutter of roadbed both sides；And by the way that herringbone composite water draining board is arranged,
In subgrade soils freezing process, composite geo-membrane can effectively prevent migrating in the upward embankment of lower embankment moisture and roadbed；Simultaneously most
The moisture that big jelly depths is gathered can reduce roadbed from the timely and effective discharge of three V dimensional steel wire rack of herringbone composite water drain-proof plate
Humidity.
Description of the drawings
Fig. 1 is cross-sectional configuration schematic diagram of the present invention；
Fig. 2 is heating device structure chart；
In figure：1. road surface, 2. roadbeds, 3. thermal insulation layers, 4. roadbeds, 5. Temperature Humidity Sensors, 6. heating devices, 7. herringbones
Composite water draining board, 8. substrate composite water draining boards, 9. signal wires, 10. temperature and humidity controllers, 11. for electric installation, 12. gutters,
13. heating wire, 14. heating tubes.
Specific implementation mode
As shown in Figure 1, a kind of temperature and humidity control system for frozen ground regions road structure, including it is set to road
The thermal insulation layer 3 of heating device 6 and roadbed top in the middle part of the waterproof and water drainage system of 4 lower part of base, roadbed；
The waterproof and water drainage system includes the substrate composite water draining board 8 for being set to 4 bottom of roadbed, in the substrate composite water draining board
8 sides are equipped with gutter 12, freeze at line equipped with herringbone composite water draining board 7 above substrate composite water draining board 8；It is described
Upward, downward, the ratio of slope on herringbone slope is 3% to composite geo-membrane to the three V dimensional steel wire rack of herringbone composite water draining board 7；The base
The composite geo-membrane of bottom composite water draining board 8 has waterproof function, and upward, three V dimensional steel wire rack is downward in direction.
The heating device 6 is connected with 4 side of roadbed for electric installation 11 and temperature and humidity controller 10, the humiture control
Device 10 processed is connected by signal wire 9 with for electric installation 11；Heating device 6 is made of heating wire 13 and heating tube 14, the fever
Silk 13 is made of Nanoalloy material, and heating tube 14 is coating steel pipe, and 13 spiral surrounding of the heating wire is in heating tube 14
Inside, to improve heating effect.
It is described to be made of solar battery group, solar controller, accumulator, DC load for electric installation 11；The temperature
Humidity controller 10 is connected by signal wire 9 with the Temperature Humidity Sensor 5 being arranged in roadbed 4, when Temperature Humidity Sensor 5 returns
Temperature when being higher than 20% less than 2 DEG C of setting value or humidity value, that is, water content, it is logical that temperature and humidity controller 10 controls heating device 6
Electrical heating is to adjust temperature and humidity.
The thermal insulation layer 3 is made of polystyrene foam plastics, thick 0.05m, is set in the roadbed 2 under road surface 1.
A kind of installation method of temperature and humidity control system for frozen ground regions road structure, including following step
Suddenly：
(1) it is laid with guarded drainage composite plate：It is laid with substrate composite water draining board 8 in 4 bottom of roadbed, by it with water proof ability
Composite geo-membrane upward, three V dimensional steel wire rack downward, freeze above substrate composite water draining board 8, in roadbed at line be laid with herringbone
Shape composite water draining board 7, downward, three V dimensional steel wire rack is upward for composite geo-membrane；
(2) Temperature Humidity Sensor is buried：In each embedded one group of Temperature Humidity Sensor 5 of longitudinal upper 1/4 and 3/4 depth of roadbed 4,
Along road direction of advance, the distance between adjacent Temperature Humidity Sensor 5 is 15~25m；
(3) it is laid with heating device：It is laid with horizontal heating tube 14 and cable in 1/2 depth of roadbed, heating tube is using back-shaped
Pipeline is arranged, and the distance between adjacent heating tube is 2~2.5m, and heating wire 13 is prefabricated in heating tube；
(4) it is laid with thermal insulation layer：The polystyrol plastic foam plate of 0.05m thickness is laid at 0.35m below roadbed top surface, is made
For heat-insulating heat-preserving material；
(5) stringer and wiring：It is assumed in roadbed side for electric installation 11 and temperature and humidity controller 10, later, leads to
It crosses cable for electric installation to be connected with temperature and humidity controller, then temperature and humidity controller 10 is connected by cable with heating device 6；
Meanwhile temperature and humidity controller is connected with heating device and Temperature Humidity Sensor by signal transmssion line respectively again.
Laboratory test show to be more than 0 degree when ambient temperature and can be to provide abundance in roadbed make-up water when (make-up water two
Kind available sources are respectively underground water and rain infiltration), moisture content and temperature are positively correlated；It is more than 0 degree in ambient temperature on the contrary
And when partition make-up water, temperature more high-moisture percentage reduces faster；Therefore use guarded drainage composite plate separate underground water supply with
And in roadbed when moisture excess can timely and effective exclusion and the heating system by being arranged in roadbed with mode of heating evaporable water,
The moisture content of roadbed can be kept to be kept low for a long time, it is most important to stablizing for permafrost region roadbed.
Claims (6)
1. a kind of temperature and humidity control system for frozen ground regions road structure, which is characterized in that including being set to road
The thermal insulation layer (3) of heating device (6) and roadbed top in the middle part of the waterproof and water drainage system of base (4) lower part, roadbed；The guarded drainage system
System includes the substrate composite water draining board (8) for being set to roadbed (4) bottom, and draining is equipped in substrate composite water draining board (8) side
Gutter (12) freezes at line above substrate composite water draining board (8) equipped with herringbone composite water draining board (7).
2. a kind of temperature and humidity control system for frozen ground regions road structure as described in claim 1, feature
Be, the three V dimensional steel wire rack of the herringbone composite water draining board (7) upward, composite geo-membrane downward, the ratio of slope on herringbone slope
It is 3%；The composite geo-membrane of the substrate composite water draining board (8) have waterproof function, direction upward, three V dimensional steel wire rack court
Under.
3. a kind of temperature and humidity control system for frozen ground regions road structure as described in claim 1, feature
It is, the heating device (6) is connected with roadbed (4) side for electric installation (11) and temperature and humidity controller (10), the temperature
Humidity controller (10) is connected by signal wire (9) with for electric installation (11)；Heating device (6) is by heating wire (13) and heating tube
(14) it forms, is made of solar battery group, solar controller, accumulator, DC load for electric installation (11), it is described warm and humid
Degree controller (10) is connected by signal wire (9) with the Temperature Humidity Sensor (5) being arranged in roadbed (4).
4. a kind of temperature and humidity control system for frozen ground regions road structure as claimed in claim 3, feature
It is, the heating wire (13) is made of Nanoalloy material, and heating tube (14) is coating steel pipe, the heating wire (13)
Spiral surrounding is on the inside of heating tube (14), to improve heating effect.
5. a kind of temperature and humidity control system for frozen ground regions road structure as described in claim 1, feature
It is, the thermal insulation layer (3) is made of polystyrene foam plastics, thick 0.05m, the roadbed (2) being set under road surface (1)
In.
6. a kind of installation side of temperature and humidity control system for frozen ground regions road structure as described in claim 1
Method, which is characterized in that include the following steps：
(1) it is laid with guarded drainage composite plate：It is laid with substrate composite water draining board (8) in roadbed (4) bottom, by it with water proof ability
Composite geo-membrane upward, three V dimensional steel wire rack downward, freeze to be laid with people at line above the substrate composite water draining board (8), in roadbed
Font composite water draining board (7), downward, three V dimensional steel wire rack is upward for composite geo-membrane；
(2) Temperature Humidity Sensor is buried：In roadbed (4) longitudinal direction, upper 1/4 and 3/4 depth is each buries one group of Temperature Humidity Sensor (5),
Along road direction of advance, the distance between adjacent Temperature Humidity Sensor is 15~25m；
(3) it is laid with heating device：It is laid with horizontal heating tube (14) and cable in 1/2 depth of roadbed, heating tube uses back-shaped pipe
Road is arranged, and the distance between adjacent heating tube is 2~2.5m, and heating wire (13) is prefabricated in heating tube；
(4) it is laid with thermal insulation layer：Below roadbed top surface at 0.35m be laid with 0.05m thickness polystyrol plastic foam plate, as every
Hot thermal insulation material；
(5) stringer and wiring：It is arranged on roadbed side for electric installation (11) and temperature and humidity controller, later, passes through cable
It will be connected with temperature and humidity controller (10) for electric installation (11), then temperature and humidity controller (10) passed through into cable and heating device
(6) heating tube is connected；Meanwhile temperature and humidity controller again by signal transmssion line respectively with heating device and temperature and humidity sensing
Device is connected.
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| CN201810372940.1A CN108316081A (en) | 2018-04-24 | 2018-04-24 | A kind of temperature and humidity control system for frozen ground regions road structure |
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| CN201810372940.1A CN108316081A (en) | 2018-04-24 | 2018-04-24 | A kind of temperature and humidity control system for frozen ground regions road structure |
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| CN108316081A true CN108316081A (en) | 2018-07-24 |
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| CN201810372940.1A Pending CN108316081A (en) | 2018-04-24 | 2018-04-24 | A kind of temperature and humidity control system for frozen ground regions road structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108519477A (en) * | 2018-04-24 | 2018-09-11 | 西南科技大学 | A kind of frozen ground regions roadbed model pilot system |
| CN108867224A (en) * | 2018-09-27 | 2018-11-23 | 江西省地质工程(集团)公司 | A kind of expressway highway subgrade and its construction method |
| CN109577122A (en) * | 2018-12-07 | 2019-04-05 | 哈尔滨工业大学 | A kind of vertical drainage road structure based on electro-osmosis method |
| CN110273341A (en) * | 2019-07-19 | 2019-09-24 | 西南交通大学 | A kind of frozen ground regions heating road structure and its construction method |
| CN112923584A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Light-focusing type anti-freezing expansion heat-collecting device and roadbed thereof |
| CN112923583A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Aerodynamic circulating heating device and roadbed thereof |
| CN113047105A (en) * | 2021-03-25 | 2021-06-29 | 中国科学院西北生态环境资源研究院 | Integrated anti-freezing and anti-expansion heat collecting device and roadbed thereof |
| CN113983234A (en) * | 2021-11-23 | 2022-01-28 | 中国科学院西北生态环境资源研究院 | Device and method for preventing and treating frost heaving of pipe foundation soil of buried cold natural gas pipeline in discontinuous permafrost region |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108519477A (en) * | 2018-04-24 | 2018-09-11 | 西南科技大学 | A kind of frozen ground regions roadbed model pilot system |
| CN108519477B (en) * | 2018-04-24 | 2023-10-13 | 西南科技大学 | Seasonal frozen soil area roadbed model test system |
| CN108867224A (en) * | 2018-09-27 | 2018-11-23 | 江西省地质工程(集团)公司 | A kind of expressway highway subgrade and its construction method |
| CN109577122A (en) * | 2018-12-07 | 2019-04-05 | 哈尔滨工业大学 | A kind of vertical drainage road structure based on electro-osmosis method |
| CN110273341A (en) * | 2019-07-19 | 2019-09-24 | 西南交通大学 | A kind of frozen ground regions heating road structure and its construction method |
| CN112923584A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Light-focusing type anti-freezing expansion heat-collecting device and roadbed thereof |
| CN112923583A (en) * | 2021-03-25 | 2021-06-08 | 中国科学院西北生态环境资源研究院 | Aerodynamic circulating heating device and roadbed thereof |
| CN113047105A (en) * | 2021-03-25 | 2021-06-29 | 中国科学院西北生态环境资源研究院 | Integrated anti-freezing and anti-expansion heat collecting device and roadbed thereof |
| CN112923583B (en) * | 2021-03-25 | 2021-12-14 | 中国科学院西北生态环境资源研究院 | Aerodynamic circulating heating device and roadbed thereof |
| CN112923584B (en) * | 2021-03-25 | 2022-03-04 | 中国科学院西北生态环境资源研究院 | Light-focusing type anti-freezing expansion heat-collecting device and roadbed thereof |
| CN113983234A (en) * | 2021-11-23 | 2022-01-28 | 中国科学院西北生态环境资源研究院 | Device and method for preventing and treating frost heaving of pipe foundation soil of buried cold natural gas pipeline in discontinuous permafrost region |
| CN113983234B (en) * | 2021-11-23 | 2023-08-18 | 中国科学院西北生态环境资源研究院 | Device and method for preventing and controlling frost heave of pipe base soil of buried cold transmission natural gas pipeline in discontinuous permafrost region |
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