CN110486038A - A kind of the heat self-balancing system and its construction method of tunnel in cold area freeze injury prevention and control - Google Patents
A kind of the heat self-balancing system and its construction method of tunnel in cold area freeze injury prevention and control Download PDFInfo
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- CN110486038A CN110486038A CN201910835258.6A CN201910835258A CN110486038A CN 110486038 A CN110486038 A CN 110486038A CN 201910835258 A CN201910835258 A CN 201910835258A CN 110486038 A CN110486038 A CN 110486038A
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- 230000009746 freeze damage Effects 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims description 10
- 239000004567 concrete Substances 0.000 claims description 9
- 230000005641 tunneling Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 239000011147 inorganic material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of heat self-balancing system of tunnel in cold area freeze injury prevention and control and its construction methods, the system successively includes preliminary bracing structure and splash guard and secondary liner structure from outside to inside, several anchor poles, super heat-conductive pipe and heat-collecting device are provided in preliminary bracing structure outward, super heat-conductive pipe is connected by threeway or duplex fitting, adjacent three-way connection is connected by super heat-conductive pipe, and super heat conduction material is filled in super heat-conductive pipe, three-way connection and duplex fitting.The present invention increases heat self-balancing system on the basis of tunnel structure, and super heat conduction material is filled in super heat-conductive pipe, three-way connection and duplex fitting, the heat in high-temperature tunnel area is allowed to be oriented to the freeze injury Chang Faqu of the low temperature such as tunnel portal, both the heat dissipation problem in high-temperature tunnel area had been solved, solve the problems, such as the freeze injury of tunnel low-temperature space again, and moderate cost, apply it is simple, easy to maintain.
Description
Technical field
The invention belongs to tunneling technique fields, and in particular to a kind of heat self-balancing system of tunnel in cold area freeze injury prevention and control
And its construction method.
Background technique
China has a vast territory, and different regions climate difference is larger, and frozen ground regions coverage area is wide.And it is cold low
Frozen-thawed cycled under temperature causes the Tunnel Engineering in these areas to be easy to happen different degrees of freeze injury.In Tunnel Engineering, construction
Or load reason may cause inside concrete structure especially surface and nearby generate contraction fissure or load Crack.Once all
Crevice water or pore water in country rock soil gradually invade these cracks of lining cutting, and freezing and expansion under low temperature in winter, cause to split
Further expansion is stitched, is just easy to happen Lining cracks, infiltration, vault hang ice and the freeze injuries such as icy on road.In addition, freeze injury exists often
Portal Section occurs, and buried depth biggish position in the middle part of tunnel, and leads to because of underground heat that lining cutting, temperature is excessively high in tunnel, needs to spend
Take a large amount of human and material resources to radiate.
Currently, for this phenomenon of tunnel in cold area freeze injury control measure there are mainly two types of, one is pass through the heat such as cable
Source is embedded in tunnel-liner to carry out active heating to tunnel-liner surface, although this method is simple directly, is needed
A large amount of electric power and maintenance cost are wanted, while also having the security risk that fire occurs；It is another then be by lining cutting decorative layer
Interior placement insulating layer is kept the temperature, and this method belongs to passive heat preservation, ineffective and with high costs.It is larger for buried depth
Tunnel construction sections cooling measure mainly pass through axial flow blower air flowing caused to carry out active heat removal, this method also needs greatly
The electric power and maintenance cost of amount, and air conduction is poor, causes this method heat dissipation effect also not ideal enough.So when be badly in need of
A kind of moderate cost applies facility simple, easy to maintain, can effectively be radiated to high-temperature region and to low-temperature space into
Row heat temperature raising.
Summary of the invention
In view of the above deficiencies, the present invention provides the heat self-balancing system and its construction party of a kind of tunnel in cold area freeze injury prevention and control
Method increases heat self-balancing system on the basis of tunnel structure, and heat superconducting material is filled in three-way connection and duplex fitting
Material allows the heat in high-temperature tunnel area to be oriented to the freeze injury Chang Faqu of the low temperature such as tunnel portal, had both solved the heat dissipation in high-temperature tunnel area
Problem, and solve the problems, such as the freeze injury of tunnel low-temperature space, and moderate cost, apply it is simple, easy to maintain.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is: providing a kind of cold area's tunnel
The heat self-balancing system of road freeze injury prevention and control successively includes preliminary bracing structure and splash guard and secondary lining knot from outside to inside
Structure is provided with several anchor poles, super heat-conductive pipe and heat-collecting device in preliminary bracing structure outward, and super heat-conductive pipe lower end is provided with three
Pass joint, in the early stage between supporting construction and splash guard and secondary liner structure, super heat-conductive pipe lower end is all provided with for three-way connection setting
It is equipped with three-way connection, adjacent three-way connection is connected by super heat-conductive pipe with duplex fitting, and super heat-conductive pipe, duplex fitting and three connect
It is filled with super heat conduction material in head, is provided with heat liberation board between preliminary bracing structure and splash guard.
Further, heat-collecting device diameter is greater than super heat-conductive pipe diameter.
Further, the contact area of heat-collecting device and country rock needs as big as possible.Heat-collecting device should be using thermal conductivity is good, Yi Jia
The material of work, including but not limited to stainless steel, steel alloy etc..
Further, common heat superconducting inorganic material should be selected inside three-way connection and duplex fitting, and the material is led
Hot property should be high as much as possible.Depending on engineering concrete condition, when conditions permit, the three-way connection of high temperature section and duplex fitting are guaranteeing
In the case that the indexs such as its thermal conductivity, corrosion resistance, heat resistance, rigidity reach requirement, common PVC material can be used, with drop
Low cost improves economy.
Further, the heat liberation board of low-temperature zone should and heat distribution uniform combined type preferable using uniform in material, thermal conductivity
Heat release version can also be used steel wire etc. and replaced depending on concrete condition.
Further, the three-way connection of the three-way connection and super heat-conductive pipe and tunnel cross-section of tunnel longitudinal direction, super heat-conductive pipe and double
Pass joint is connected as an entirety.
Further, the thermal coefficient of super heat conduction material is greater than 1.2 × 107W/(m·K)。
Further, three-way connection and the pipe diameter of duplex fitting, required inorganic material amount should regard the high and low temperature section temperature difference in tunnel
Depending on, the temperature difference is bigger, and diameter is bigger, material requested is more.
Further, the pipeline of high temperature section tunnel cross-section should be placed in preliminary bracing structure and splash guard and secondary liner structure it
Between, there are gap (i.e. pipeline have thermal conductivity poor air) as far as possible for surrounding, to guarantee the heat of high temperature section as far as possible
It is transmitted to low-temperature zone to low-loss；The pipeline of low-temperature zone tunnel cross-section is also placed in preliminary bracing structure and splash guard, secondary lining
Between.
Further, it is contemplated that tunnel longitudinal direction and part tunnel cross-section size are larger, if directlying adopt super heat-conductive pipe will lead to
Its length is too long, is not easy to the transport and installation of pipeline.Therefore spliced between longitudinal super heat-conductive pipe using duplex fitting.
The construction method in above-mentioned heat-conducting type pin-connected panel tunnel, successively the following steps are included:
(1) three-way connection, duplex fitting, super heat-conductive pipe and the superconduction embedded with heat-collecting device for the respective shapes that are prefabricated in the factory
Heat pipe, and pre-filled super heat conduction material inside it；
(2) tunneling applies the preliminary bracings structure such as gunite concrete, anchor pole, then be laid with low-temperature zone at pipeline with
And heat liberation board, carry out the construction of tunnel heat release section (section is easily sent out in freeze injury)；
(3) changeover portion near divisional plane is longitudinally laid with the super heat-conductive pipe filled with super heat conduction material along tunnel, bilateral connects
Head and three-way connection；
(4) at construction to high temperature section when, preliminary bracing structure is applied, is then punched in supporting construction in the early stage, built-in end
Portion is embedded with the super heat-conductive pipe of heat-collecting device, reconnects other super heat-conductive pipes and three-way connection, until by entire tunnel contour
Pipeline connection it is integral；
(5) three-way connection longitudinal at abutment wall connect with longitudinal super heat-conductive pipe, then longitudinal super heat-conductive pipe is used pair
Pass joint splicing；
(6) at high temperature section after the completion of pipeline connection, before the processes such as low-temperature zone splash guard and secondary liner structure apply, from
Heat liberation board is connected on longitudinal super heat-conductive pipe by abutment wall two sides, and the heat liberation board of tunnel cross-section is applied completion, forms one
Whole (heat liberation board can also construct simultaneously with pipeline at high temperature section).
Further, in conjunction with concrete engineering situation, low temperature segment pipe can be first applied, then applies high temperature segment pipe.
Further, the geothermal energy for making full use of buried section of tunnel is allowed to voluntarily conduct in the form of hot superconduction low to hole
Temperature section, to prevent the generation of freeze injury.
Further, super heat-conductive pipe and three-way connection shape, position are consistent with tunnel excavation section configuration.
In conclusion the invention has the following advantages that
1, the heat that high temperature section is accumulated by underground heat among tunnel, is transferred in duplex fitting by heat-collecting device first
Super heat conduction material, play the role of cooling down to high temperature section country rock and tunnel structure.Due to heat from high temperature to passing at low temperature
It passs, and the fabulous (thermal coefficient 1.2 × 10 of super heat conduction material thermal conductivity7W/ (mK) or more), thermal resistance it is almost nil, therefore high temperature section
Heat received by super heat conduction material is transmitted to the super heat conduction material of low-temperature zone rapidly, and heat will heat heat liberation board, Jin Erjia
Hot preliminary bracing and secondary lining.By this series of heat transfer, it is finally reached cooling to high-temperature region and to hole etc.
The effect of the heating of low-temperature space.
2, the heat in high temperature section country rock refers to super heat conduction material by heat-collecting device transmitting, super heat conduction material by heat along
Pipeline is transmitted to after low-temperature zone and can continue to absorb heat, and looping back and forth like this can be such that the heat in high temperature section country rock reduces, is warm
Degree reduces；
3, since tunnel interlude (high temperature section) and tunnel portal segment section (low-temperature zone) have the biggish temperature difference, surpass in addition
The good thermal conductivity of Heat Conduction Material, the heat in pipeline are transmitted from high-temperature region to low-temperature space rapidly, dissipate the even heat of itself
Cloth will not generate heat concentration；
4, super heat conduction material thermal resistance is almost nil, and the minimum (about 0.024W/ (m of the air conduction coefficient of tube contacts
K)), therefore lost less during heat transmission, the received heat of low-temperature space is more, to the heating effect of preliminary bracing, secondary lining
Preferably.
5, super heat-conductive pipe is attached using duplex fitting, reduces the specification requirement to super heat-conductive pipe, convenient for its fortune
Defeated and installation.
Detailed description of the invention
Fig. 1 is that the present invention adopts hot end, release end of heat entirety schematic three dimensional views；
Fig. 2 is high-temperature tunnel section section Pipe installing overall schematic；
Fig. 3 is that tunnel pipe tunnel installs partial schematic diagram；
Fig. 4 is tunnel low-temperature zone section Pipe installing overall schematic；
Wherein, 1, heat-collecting device；2, super heat-conductive pipe；3, super heat conduction material；4, anchor pole；5, preliminary bracing structure；6, threeway
Connector；7, heat liberation board；8, splash guard and secondary liner structure；9, duplex fitting.
Specific embodiment
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawing.
In one embodiment of the present of invention, as shown in Figs 1-4, the heat for providing a kind of tunnel in cold area freeze injury prevention and control is certainly flat
Balance system, successively includes preliminary bracing structure 5 and splash guard and secondary liner structure 8 from outside to inside, in preliminary bracing structure 5 to
Outside is provided with several anchor poles 4, super heat-conductive pipe 2 and heat-collecting device 1, and 2 lower end of super heat-conductive pipe is provided with three-way connection 9, and three connect
In the early stage between supporting construction 5 and splash guard and secondary liner structure 8,2 lower end of super heat-conductive pipe is provided with three and connects for first 9 setting
First 6, adjacent three-way connection 6 is connected by super heat-conductive pipe 2 and duplex fitting 9, super heat-conductive pipe 2, duplex fitting 9 and three-way connection 6
It is interior to be filled with super heat conduction material 3, heat liberation board 7 is provided between preliminary bracing structure 5 and splash guard.Heat-collecting device 1 and country rock
Contact area is answered as big as possible, and good, easy processing material need to be made using thermal conductivity.
Common heat superconducting inorganic material, and the heating conduction of the material should be selected inside duplex fitting 9 and three-way connection 6
It should be high as much as possible.Depending on engineering concrete condition, when conditions permit, the duplex fitting 9 of high temperature section and three-way connection 6 are guaranteeing that it leads
In the case that the indexs such as hot, corrosion resistance, heat resistance, rigidity reach requirement, common PVC material can be used, with reduce at
This raising economy；The heat liberation board 7 of low-temperature zone should be good using thermal conductivity and the uniform material of heat release is made, to guarantee to initial stage branch
The heating effect of protection structure 5, splash guard and secondary liner structure 8.The duplex fitting 9 of tunnel longitudinal direction and three-way connection 6 and tunnel
The duplex fitting 9 of section and three-way connection 6 are connected as an entirety.The thermal coefficient of super heat conduction material 3 is greater than 1.2 × 107W/
(m·K).The pipe diameter of duplex fitting 9 and three-way connection 6, required inorganic material amount should depending on the high and low temperature section temperature difference in tunnel,
The temperature difference is bigger, and diameter is bigger, material requested is more.
The pipeline of high temperature section tunnel cross-section should be placed between preliminary bracing structure 5 and splash guard and secondary liner structure 8, pipe
Road surrounding should as much as possible there are air package, with guarantee high temperature section heat low-loss as far as possible be transmitted to low-temperature zone.It is low
The heat liberation board 7 of temperature section tunnel cross-section is placed between preliminary bracing structure 5 and splash guard and secondary liner structure 8, so that high temperature section
Heat can with low-loss, be uniformly heated up preliminary bracing structure 5 and secondary liner structure.
The construction method of the heat self-balancing system of above-mentioned tunnel in cold area freeze injury prevention and control, successively the following steps are included:
(1) three-way connections 6 of the respective shapes that are prefabricated in the factory, duplex fitting 9, super heat-conductive pipe 2 and embedded with heat-collecting device 1
Super heat-conductive pipe 2, and pre-filled super heat conduction material 3 inside it；
(2) tunneling applies the preliminary bracings structures 5 such as gunite concrete, anchor pole 4, is then laid with pipeline at low-temperature zone
And heat liberation board 7, carry out the construction of tunnel heat release section；
(3) changeover portion near divisional plane is longitudinally laid with the super heat-conductive pipe 2 for being filled with super heat conduction material, bilateral along tunnel
Connector 9 and three-way connection 6；
(4) at construction to high temperature section when, preliminary bracing structure 5 is applied, is then punched in supporting construction 5 in the early stage, be embedded in
End is embedded with the super heat-conductive pipe 2 of heat-collecting device 1, reconnects other super heat-conductive pipes 2 and three-way connection 6, until entire tunnel is broken
The pipeline connection of facial contour is integral；
(5) three-way connection 6 longitudinal at abutment wall is connect with longitudinal super heat-conductive pipe 2, then longitudinal super heat-conductive pipe 2 is used
Duplex fitting 9 is spliced；
(6) at high temperature section after the completion of pipeline connection, before the processes such as low-temperature zone splash guard and secondary liner structure 8 apply,
Heat liberation board 7 is connected on longitudinal super heat-conductive pipe 2 from abutment wall two sides, and the heat liberation board of tunnel cross-section 7 is applied into completion, is formed
One entirety (heat liberation board 7 can also construct simultaneously with pipeline at high temperature section).
Meanwhile in conjunction with concrete engineering situation, low temperature segment pipe can be first applied, then apply high temperature segment pipe.2 He of super heat-conductive pipe
6 shape of three-way connection, position are consistent with tunnel excavation section configuration.
The heat that high temperature section is accumulated by underground heat among tunnel is transferred in super heat-conductive pipe 2 by heat-collecting device 1 first
Super heat conduction material 3, play the role of cooling down to high temperature section country rock and tunnel structure.Due to heat from high temperature to passing at low temperature
It passs, and the fabulous (thermal coefficient 1.2 × 10 of 3 thermal conductivity of super heat conduction material7W/ (mK) or more), thermal resistance it is almost nil, therefore high temperature
Heat received by section super heat conduction material 3 is transmitted to the super heat conduction material of low-temperature zone 3 rapidly, and heat will heat heat liberation board 7, into
And heat preliminary bracing structure 5 and secondary lining.By this series of heat transfer, be finally reached cooling to high-temperature region and
To the effect of the heating of the low-temperature spaces such as hole.
Although being described in detail in conjunction with attached drawing to a specific embodiment of the invention, should not be construed as special to this
The restriction of the protection scope of benefit.In range described by claims, those skilled in the art are without creative work
The various modifications and deformation that can make still belong to the protection scope of this patent.
Claims (7)
1. a kind of heat self-balancing system of tunnel in cold area freeze injury prevention and control, which is characterized in that from outside to inside successively include initial stage branch
Protection structure (5) and splash guard and secondary liner structure (8) are provided with several anchor poles on the preliminary bracing structure (5) outward
(4), super heat-conductive pipe (2) and heat-collecting device (1), super heat-conductive pipe (2) lower end are provided with three-way connection (6), and described three connect
Head (6) is arranged between the preliminary bracing structure (5) and the splash guard and secondary liner structure (8), the super heat-conductive pipe
(2) lower end is provided with three-way connection (6), and the adjacent three-way connection (6) passes through the super heat-conductive pipe (2) and duplex fitting
(9) it connects, super heat conduction material is filled in the super heat-conductive pipe (2), the duplex fitting (9) and the three-way connection (6)
(3), heat liberation board (7) are provided between the preliminary bracing structure (5) and the splash guard.
2. the heat self-balancing system of tunnel in cold area freeze injury prevention and control as described in claim 1, which is characterized in that described to adopt hot charging
(1) diameter is set greater than the super heat-conductive pipe (2) diameter.
3. the heat self-balancing system of tunnel in cold area freeze injury prevention and control as described in claim 1, which is characterized in that tunnel longitudinal direction
The three-way connection (6) of the three-way connection (6) and the super heat-conductive pipe (2) and tunnel cross-section, the super heat-conductive pipe (2) and
The duplex fitting (9) is connected as an entirety.
4. the heat self-balancing system of tunnel in cold area freeze injury prevention and control as described in claim 1, which is characterized in that the heat superconducting
The thermal coefficient of material (3) is greater than 1.2 × 107W/(m·K)。
5. the construction method of the heat self-balancing system of tunnel in cold area freeze injury prevention and control according to any one of claims 1-4,
Be characterized in that, successively the following steps are included:
(1) three-way connections of the respective shapes that are prefabricated in the factory, duplex fitting, super heat-conductive pipe and it is embedded with heat-collecting device super heat-conductive pipe,
And pre-filled super heat conduction material inside it；
(2) tunneling applies the preliminary bracings structure such as gunite concrete, anchor pole, is then laid with pipeline at low-temperature zone and puts
Hot plate carries out the construction of tunnel heat release section；
(3) changeover portion near divisional plane, be longitudinally laid with along tunnel filled with the super heat-conductive pipe of super heat conduction material, duplex fitting and
Three-way connection；
(4) at construction to high temperature section when, preliminary bracing structure is applied, is then punched in supporting construction in the early stage, insertion end is embedding
There is the super heat-conductive pipe of heat-collecting device, reconnect other super heat-conductive pipes and three-way connection, until by the pipe of entire tunnel contour
Road connection is integral；
(5) three-way connection at abutment wall is connect with longitudinal super heat-conductive pipe, then longitudinal super heat-conductive pipe is spelled with duplex fitting
It connects；
(6) at high temperature section after the completion of pipeline connection, before the processes such as low-temperature zone splash guard and secondary liner structure apply, from abutment wall
Heat liberation board is connected on longitudinal super heat-conductive pipe by two sides, and the heat liberation board of tunnel cross-section is applied completion, forms an entirety.
6. the construction method of the heat self-balancing system of tunnel in cold area freeze injury prevention and control as claimed in claim 5, which is characterized in that
Low temperature segment pipe is first applied, then applies high temperature segment pipe.
7. the construction method of the heat self-balancing system of tunnel in cold area freeze injury prevention and control as claimed in claim 5, which is characterized in that
The super heat-conductive pipe and the three-way connection shape, position are consistent with tunnel excavation section configuration.
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| CN201910835258.6A CN110486038B (en) | 2019-09-05 | 2019-09-05 | Heat self-balancing system for preventing and controlling freezing injury of tunnel in cold region and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835258.6A CN110486038B (en) | 2019-09-05 | 2019-09-05 | Heat self-balancing system for preventing and controlling freezing injury of tunnel in cold region and construction method thereof |
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| CN110486038A true CN110486038A (en) | 2019-11-22 |
| CN110486038B CN110486038B (en) | 2020-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648794A (en) * | 2020-06-02 | 2020-09-11 | 山东高速科技发展集团有限公司 | Support framework for tunnel portal section in cold region and installation method |
| CN111677053A (en) * | 2020-05-22 | 2020-09-18 | 同济大学 | Cold region tunnel fire pipeline anti-freezing heat preservation system utilizing geothermal energy |
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| CN111677053A (en) * | 2020-05-22 | 2020-09-18 | 同济大学 | Cold region tunnel fire pipeline anti-freezing heat preservation system utilizing geothermal energy |
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