CN110486038B - Heat self-balancing system for preventing and controlling freezing injury of tunnel in cold region and construction method thereof - Google Patents
Heat self-balancing system for preventing and controlling freezing injury of tunnel in cold region and construction method thereof Download PDFInfo
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- CN110486038B CN110486038B CN201910835258.6A CN201910835258A CN110486038B CN 110486038 B CN110486038 B CN 110486038B CN 201910835258 A CN201910835258 A CN 201910835258A CN 110486038 B CN110486038 B CN 110486038B
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- 230000006378 damage Effects 0.000 title claims abstract description 19
- 238000007710 freezing Methods 0.000 title claims abstract description 18
- 230000008014 freezing Effects 0.000 title claims abstract description 18
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 208000027418 Wounds and injury Diseases 0.000 title claims description 10
- 208000014674 injury Diseases 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000009746 freeze damage Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 4
- 239000011147 inorganic material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004519 manufacturing process 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
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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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
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- 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
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- 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
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- 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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- Combustion & Propulsion (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a heat self-balancing system for preventing and controlling freezing damage of a tunnel in a cold region and a construction method thereof. The invention adds a heat self-balancing system on the basis of the tunnel structure, and fills the superconducting heat pipe, the three-way joint and the two-way joint with superconducting heat materials, so that the heat of the high-temperature area of the tunnel is guided to the low-temperature freeze injury common areas such as the tunnel portal, the heat dissipation problem of the high-temperature area of the tunnel is solved, the freeze injury problem of the low-temperature area of the tunnel is also solved, and the invention has moderate cost, simple construction and convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of tunnels, and particularly relates to a heat self-balancing system for preventing and controlling freezing injury of a tunnel in a cold region and a construction method thereof.
Background
China has broad breadth, different regions have large climate difference, and seasonal frozen soil regions have wide coverage. And freeze-thaw cycles at cold and low temperatures cause the tunnel engineering in these areas to be susceptible to freeze injury of different degrees. In the tunnel engineering, construction or load causes may cause shrinkage cracks or load cracks to be generated inside the concrete structure, especially near the surface. Once fissure water or pore water in surrounding rock soil gradually invades into the cracks of the lining and is frozen and expanded at low temperature in winter, so that the cracks are further enlarged, and freezing damage such as lining cracking, water seepage, vault ice hanging, road surface freezing and the like easily occurs. In addition, the freezing damage often occurs at the opening section, and the temperature in the lining and the tunnel is too high due to the terrestrial heat at the position with larger buried depth in the middle of the tunnel, so that a large amount of manpower and material resources are needed for heat dissipation.
At present, two main control measures are adopted for the phenomenon of cold tunnel freezing injury in a cold region, one control measure is that the heat source such as a cable is buried in a tunnel lining to actively heat the surface of the tunnel lining, and the method is simple and direct, but needs a large amount of electric power and maintenance cost and has potential safety hazards of fire; the other method is to put a heat insulation layer in the lining decorative layer for heat insulation, and the method belongs to passive heat insulation, and has poor effect and high cost. The heat dissipation measure for the tunnel section with large burial depth is to actively dissipate heat by causing air flow through an axial flow fan, the method also needs a large amount of electric power and maintenance cost, and the heat conductivity of air is poor, so that the heat dissipation effect of the method is not ideal. Therefore, a facility with moderate cost, simple construction and convenient maintenance is urgently needed, and not only can effectively dissipate heat of a high-temperature area, but also can heat and raise temperature of a low-temperature area.
Disclosure of Invention
Aiming at the defects, the invention provides a heat self-balancing system for preventing and controlling the freezing injury of a tunnel in a cold region and a construction method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cold district tunnel freeze injury prevention and control's heat self-balancing system, include primary support structure and waterproof board and secondary lining structure from outside to inside in proper order, the last outside that is provided with of primary support structure is provided with a plurality of stock, superconductive heat pipe and heating device, the superconductive heat pipe lower extreme is provided with three way connection, three way connection sets up between primary support structure and waterproof board and secondary lining structure, the superconductive heat pipe lower extreme all is provided with three way connection, adjacent three way connection passes through superconductive heat pipe and two way connection and connects, superconductive heat pipe, two way connection and three way connection intussuseption are filled with super heat conduction material, be provided with exothermic plate between primary support structure and waterproof board and the secondary lining structure.
Furthermore, the diameter of the heat collecting device is larger than that of the superconducting heat pipe.
Further, the contact area of the heat production device and the surrounding rock needs to be as large as possible. The heat collecting device should be made of a material with good thermal conductivity and easy processing, including but not limited to stainless steel, alloy steel, etc.
Furthermore, the three-way joint and the two-way joint should be made of common super-heat-conducting inorganic materials, and the heat-conducting property of the materials should be as high as possible. According to the concrete conditions of engineering, when the conditions allow, the tee joint and the two-way joint at the high-temperature section can adopt common PVC materials under the condition of ensuring that the indexes such as heat conductivity, corrosion resistance, heat resistance, rigidity and the like meet the requirements, so that the cost is reduced and the economical efficiency is improved.
Further, the board that gives out heat of low temperature section should adopt the material even, the better and even combined type of heat release version of heat dispersion of heat conductivity, according to concrete conditions, also can adopt wire net etc. to replace.
Furthermore, the longitudinal three-way joint and the superconducting heat pipe of the tunnel are connected with the three-way joint, the superconducting heat pipe and the two-way joint of the section of the tunnel into a whole.
Further, the thermal conductivity of the super heat conductive material is more than 1.2 multiplied by 107W/(m·K)。
Further, the pipe diameters and the required inorganic material amounts of the three-way joint and the two-way joint are determined according to the temperature difference between the high-temperature section and the low-temperature section of the tunnel, and the larger the temperature difference is, the larger the diameter is, the more the required material is.
Furthermore, the pipeline of the section of the tunnel at the high-temperature section is arranged between the primary supporting structure and the waterproof plate and the secondary lining structure, and a gap is reserved around the pipeline as much as possible (namely air with poor heat conductivity is arranged around the pipeline) so as to ensure that the heat of the high-temperature section is transmitted to the low-temperature section as low as possible; and the pipeline of the low-temperature section tunnel section is also arranged between the primary supporting structure and the waterproof plate and between the primary supporting structure and the secondary lining.
Furthermore, considering that the size of the longitudinal direction of the tunnel and the section of a part of the tunnel is larger, if the superconducting heat pipe is directly adopted, the length of the superconducting heat pipe is too long, and the transportation and the installation of the pipeline are inconvenient. Therefore, the longitudinal superconducting heat pipes are spliced by adopting the double-pass joint.
The construction method of the heat-conducting assembled tunnel sequentially comprises the following steps:
(1) prefabricating a three-way joint, a two-way joint, a superconducting heat pipe and a superconducting heat pipe embedded with a heat collecting device in corresponding shapes in a factory, and pre-filling a superconducting heat material in the superconducting heat pipe;
(2) excavating a tunnel, applying primary support structures such as sprayed concrete and anchor rods, paving pipelines and heat release plates at a low-temperature section, and constructing a heat release section (a section which is easy to cause frost damage) of the tunnel;
(3) a superconducting heat pipe filled with superconducting materials, a two-way joint and a three-way joint are laid on the transition section near the dividing surface along the longitudinal direction of the tunnel;
(4) when the construction reaches a high-temperature section, constructing a primary supporting structure, then punching holes on the primary supporting structure, embedding the superconducting heat pipes with heat collecting devices embedded at the end parts, and then connecting other superconducting heat pipes and the tee joint until the pipelines of the profile of the section of the whole tunnel are connected into a whole;
(5) connecting a longitudinal three-way joint at the side wall with a longitudinal superconducting heat pipe, and splicing the longitudinal superconducting heat pipe by using a two-way joint;
(6) after the pipeline connection at the high-temperature section is completed, before the working procedures of the low-temperature section waterproof board, the secondary lining structure and the like are performed, the heat release boards are connected to the longitudinal superconducting heat pipe from the two sides of the side wall, and the heat release boards on the section of the tunnel are performed to form a whole (the heat release boards and the pipeline at the high-temperature section can be simultaneously constructed).
Furthermore, the pipeline can be firstly constructed as a low-temperature section pipeline and then constructed as a high-temperature section pipeline according to specific engineering conditions.
Furthermore, geothermal energy of the tunnel deep-buried section is fully utilized and is automatically conducted to the low-temperature section of the hole in a heat superconducting mode, so that the occurrence of freezing injury is prevented.
Furthermore, the shapes and the positions of the superconducting heat pipe and the tee joint are consistent with the shape of the tunnel excavation section.
In summary, the invention has the following advantages:
1. the heat accumulated by the terrestrial heat in the middle high-temperature section of the tunnel is firstly transmitted to the super heat-conducting material in the double-way joint through the heat collecting device, so that the effect of cooling the surrounding rock and the tunnel structure in the high-temperature section is achieved. The heat conduction of the super heat conduction material is excellent (the heat conduction coefficient is 1.2 multiplied by 10) because the heat is transferred from the high temperature to the low temperature7W/(m.K) and thermal resistance are almost zero, so that heat received by the high-temperature section of super-heat conduction material is quickly transferred to the low-temperature section of super-heat conduction material, and the heat heats the heat release plate, and further heats the primary support and the secondary lining. Through the series of heat transfer, the effects of cooling the high-temperature area and heating the low-temperature areas such as the hole opening are finally achieved.
2. The heat in the surrounding rock of the high-temperature section is transferred to the super heat conducting material through the heat collecting device, the super heat conducting material transmits the heat to the low-temperature section along the pipeline and then can continuously absorb the heat, and the heat in the surrounding rock of the high-temperature section can be reduced and the temperature can be reduced through the circulation;
3. because the middle section (high temperature section) of the tunnel and the partial section (low temperature section) of the tunnel opening have larger temperature difference and the super heat conducting material has good heat conductivity, the heat in the pipeline is rapidly transmitted from the high temperature region to the low temperature region, so that the heat of the pipeline is uniformly dispersed without generating heat concentration;
4. the thermal resistance of the super heat-conducting material is almost zero, and the heat conductivity coefficient of air in pipeline contact is extremely low (about 0.024W/(m.K)), so that the loss in the heat transmission process is less, the heat received by a low-temperature area is more, and the heating effect on primary support and secondary lining is better.
5. The superconducting heat pipe is connected by adopting the two-way connector, so that the specification requirement on the superconducting heat pipe is reduced, and the transportation and the installation are convenient.
Drawings
FIG. 1 is an overall three-dimensional schematic view of a heat collecting end and a heat releasing end of the present invention;
FIG. 2 is an overall view of the installation of a pipeline at a section of a high-temperature section of a tunnel;
FIG. 3 is a partial schematic view of the installation of longitudinal tunnel piping;
FIG. 4 is an overall view of the tunnel low temperature section pipeline installation;
wherein, 1, a heat collecting device; 2. a superconducting heat pipe; 3. a super-heat conducting material; 4. an anchor rod; 5. a primary support structure; 6. a three-way joint; 7. a heat releasing plate; 8. waterproof board and secondary lining structure; 9. two-way joint.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In one embodiment of the invention, as shown in fig. 1-4, a heat self-balancing system for preventing and controlling freezing damage of a tunnel in a cold region is provided, which comprises a primary support structure 5, a waterproof plate and a secondary lining structure 8 in sequence from outside to inside, a plurality of anchor rods 4, superconducting heat pipes 2 and a heat collecting device 1 are arranged on the primary support structure 5 from outside to outside, the lower ends of the superconducting heat pipes 2 are provided with three-way joints 6, the three-way joints 6 are arranged between the primary support structure 5 and the waterproof plate and the secondary lining structure 8, the lower ends of the superconducting heat pipes 2 are provided with the three-way joints 6, the adjacent three-way joints 6 are connected through the superconducting heat pipes 2 and the two-way joints 9, the superconducting heat pipes 2, the two-way joints 9 and the three-way joints 6 are filled with superconducting heat materials 3, and a heat release. The contact area between the heat collecting device 1 and the surrounding rock is as large as possible, and the heat collecting device needs to be made of a material with good heat conductivity and easy processing.
The two-way joint 9 and the three-way joint 6 should be made of common super-heat-conducting inorganic materials with high heat-conducting performance as much as possible. According to the concrete conditions of engineering, when the conditions allow, the two-way joint 9 and the three-way joint 6 of the high-temperature section can adopt common PVC materials under the condition of ensuring that the indexes such as heat conductivity, corrosion resistance, heat resistance, rigidity and the like meet the requirements, so that the cost is reduced and the economical efficiency is improved; the heat release plate 7 at the low temperature section is made of a material with good heat conductivity and uniform heat release so as to ensure the heating of the primary supporting structure 5, the waterproof plate and the secondary lining structure 8And (5) effect. The longitudinal double-way joint 9 and the three-way joint 6 of the tunnel are connected with the double-way joint 9 and the three-way joint 6 of the section of the tunnel into a whole. The heat conductivity coefficient of the super heat conductive material 3 is more than 1.2 multiplied by 107W/(m.K). The pipe diameters of the double-way joint 9 and the three-way joint 6 and the required inorganic material amount depend on the temperature difference between the high-temperature section and the low-temperature section of the tunnel, and the larger the temperature difference is, the larger the diameter is, the more the material is required.
The pipeline of the high-temperature section tunnel section is arranged between the primary supporting structure 5 and the waterproof plate and the secondary lining structure 8, and air is wrapped around the pipeline as far as possible so as to ensure that the heat of the high-temperature section is transmitted to the low-temperature section as low as possible. The heat release plate 7 of the low-temperature section tunnel section is arranged between the primary supporting structure 5 and the waterproof plate and the secondary lining structure 8, so that the heat of the high-temperature section can uniformly heat the primary supporting structure 5 and the secondary lining structure with low loss.
The construction method of the heat self-balancing system for preventing and controlling the freezing injury of the tunnel in the cold region sequentially comprises the following steps of:
(1) prefabricating a three-way joint 6, a two-way joint 9, a superconducting heat pipe 2 and the superconducting heat pipe 2 embedded with a heat collecting device 1 in corresponding shapes in a factory, and pre-filling a superconducting heat material 3 in the superconducting heat pipe;
(2) excavating a tunnel, applying a primary support structure 5 such as sprayed concrete and an anchor rod 4, and the like, laying a pipeline at a low-temperature section and a heat release plate 7, and constructing a heat release section of the tunnel;
(3) a superconducting heat pipe 2 filled with superconducting materials, a two-way joint 9 and a three-way joint 6 are laid on the transition section near the dividing surface along the longitudinal direction of the tunnel;
(4) when the construction is carried out to a high-temperature section, a primary supporting structure 5 is constructed, then holes are punched in the primary supporting structure 5, the superconducting heat pipes 2 with heat collecting devices 1 embedded at the end parts are embedded, and then other superconducting heat pipes 2 and a three-way joint 6 are connected until the pipelines of the whole tunnel section outline are connected into a whole;
(5) connecting a longitudinal three-way joint 6 at the side wall with a longitudinal superconducting heat pipe 2, and splicing the longitudinal superconducting heat pipe 2 by using a two-way joint 9;
(6) after the pipeline connection at the high-temperature section is completed, before the working procedures of the low-temperature section waterproof board, the secondary lining structure 8 and the like are performed, the heat release board 7 is connected to the longitudinal superconducting heat pipe 2 from the two sides of the side wall, and the heat release board 7 on the section of the tunnel is completed to form a whole (the heat release board 7 and the pipeline at the high-temperature section can be simultaneously performed).
Meanwhile, the pipeline at the low temperature section can be constructed firstly and then the pipeline at the high temperature section can be constructed by combining the concrete engineering conditions. The shapes and the positions of the superconducting heat pipe 2 and the tee joint 6 are consistent with the shape of the tunnel excavation section.
The heat accumulated by the terrestrial heat in the middle high-temperature section of the tunnel is firstly transmitted to the superconducting heat material 3 in the superconducting heat pipe 2 through the heat collecting device 1, and the effect of cooling the surrounding rock and the tunnel structure in the high-temperature section is achieved. The superconducting material 3 has excellent thermal conductivity (thermal conductivity of 1.2X 10) due to heat transfer from a high temperature to a low temperature7W/(m.K) and thermal resistance are almost zero, so that heat received by the super heat conduction material 3 at the high temperature section is quickly transferred to the super heat conduction material 3 at the low temperature section, and the heat heats the heat release plate 7, and further heats the primary supporting structure 5 and the secondary lining. Through the series of heat transfer, the effects of cooling the high-temperature area and heating the low-temperature areas such as the hole opening are finally achieved.
While the present invention has been described in detail with reference to the illustrated embodiments, it should not be construed as limited to the scope of the present patent. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (7)
1. The utility model provides a cold district tunnel freezes heat self-balancing system of damage prevention and control, its characterized in that includes primary support structure (5) and waterproof board and secondary lining structure (8) from outside-in proper order, be provided with a plurality of stock (4), superconductive heat pipe (2) and heat collection device (1) to the outside on primary support structure (5), superconductive heat pipe (2) tip has inlayed heat collection device (1), superconductive heat pipe (2) lower extreme is provided with three way connection (6), three way connection (6) set up primary support structure (5) with between waterproof board and secondary lining structure (8), it is adjacent three way connection (6) pass through superconductive heat pipe (2) and bi-pass joint (9) are connected, superconductive heat pipe (2), bi-pass joint (9) with the intussuseption of three way connection (6) is filled with super heat conduction material (3), and a heat release plate (7) is arranged between the primary supporting structure (5) and the waterproof plate and between the primary supporting structure and the secondary lining structure (8).
2. The cold region tunnel freezing damage prevention and control heat self-balancing system according to claim 1, wherein the diameter of the heat collecting device (1) is larger than that of the superconducting heat pipe (2).
3. The cold region tunnel freezing damage prevention and control heat self-balancing system according to claim 1, wherein the three-way joint (6) and the superconducting heat pipe (2) in the longitudinal direction of the tunnel are connected with the three-way joint (6), the superconducting heat pipe (2) and the two-way joint (9) in the cross section of the tunnel as a whole.
4. The cold region tunnel freezing damage prevention and control thermal self-balancing system according to claim 1, wherein the thermal conductivity of the super-heat-conducting material (3) is greater than 1.2 x 107 W/(m·K)。
5. The construction method of the heat self-balancing system for preventing and controlling the freezing injury of the cold area tunnel according to any one of claims 1 to 4, characterized by comprising the following steps in sequence:
(1) prefabricating a three-way joint, a two-way joint, a superconducting heat pipe and a superconducting heat pipe embedded with a heat collecting device in corresponding shapes in a factory, and pre-filling a superconducting heat material in the superconducting heat pipe;
(2) excavating a tunnel, applying sprayed concrete and an anchor rod, then laying a pipeline and a heat release plate at a low-temperature section, and constructing a heat release section of the tunnel;
(3) a superconducting heat pipe filled with superconducting materials, a two-way joint and a three-way joint are laid on the transition section near the dividing surface along the longitudinal direction of the tunnel;
(4) when the construction reaches a high-temperature section, constructing a primary supporting structure, then punching holes on the primary supporting structure, embedding the superconducting heat pipes with heat collecting devices embedded at the end parts, and then connecting other superconducting heat pipes and the tee joint until the pipelines of the profile of the section of the whole tunnel are connected into a whole;
(5) connecting the three-way joint at the side wall with the longitudinal superconducting heat pipe, and splicing the longitudinal superconducting heat pipe by using the two-way joint;
(6) after the pipeline connection at the high-temperature section is completed, the heat release plates are connected to the longitudinal superconducting heat pipes from two sides of the side wall before the low-temperature section waterproof plate and the secondary lining structure are constructed, and the heat release plates on the section of the tunnel are constructed to form a whole.
6. The construction method of the heat self-balancing system for preventing and controlling the freezing injury of the cold region tunnel according to claim 5, wherein the pipeline at the low temperature section is constructed first, and then the pipeline at the high temperature section is constructed.
7. The construction method of the heat self-balancing system for preventing and controlling cold region tunnel freezing injury as claimed in claim 5, wherein the shape and position of the superconducting heat pipe and the tee joint are consistent with the shape of the tunnel excavation section.
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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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| 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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| 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 |
| CN111648794B (en) * | 2020-06-02 | 2021-11-12 | 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953738A (en) * | 2012-11-08 | 2013-03-06 | 福州大学 | Method and system for automatical antifreezing and thermal insulating of tunnel lining in high and cold areas |
| CN104533462A (en) * | 2015-01-04 | 2015-04-22 | 史法战 | Tunnel lining concrete thermal insulation system |
| CN104594921A (en) * | 2015-03-02 | 2015-05-06 | 成都理工大学 | Heat-insulating and heat-dissipating lining structure for high-geothermal tunnel |
| CN106120854A (en) * | 2016-07-04 | 2016-11-16 | 中冶东方工程技术有限公司 | A kind of underground pipe gallery |
| CN109162742A (en) * | 2018-11-05 | 2019-01-08 | 重庆交通大学 | A kind of Tunnel Engineering anti-freezing structure of Permafrost Area |
-
2019
- 2019-09-05 CN CN201910835258.6A patent/CN110486038B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953738A (en) * | 2012-11-08 | 2013-03-06 | 福州大学 | Method and system for automatical antifreezing and thermal insulating of tunnel lining in high and cold areas |
| CN104533462A (en) * | 2015-01-04 | 2015-04-22 | 史法战 | Tunnel lining concrete thermal insulation system |
| CN104594921A (en) * | 2015-03-02 | 2015-05-06 | 成都理工大学 | Heat-insulating and heat-dissipating lining structure for high-geothermal tunnel |
| CN106120854A (en) * | 2016-07-04 | 2016-11-16 | 中冶东方工程技术有限公司 | A kind of underground pipe gallery |
| CN109162742A (en) * | 2018-11-05 | 2019-01-08 | 重庆交通大学 | A kind of Tunnel Engineering anti-freezing structure of Permafrost Area |
Non-Patent Citations (1)
| Title |
|---|
| 《利用地温能的隧道加热系统及其施工方法》;张国柱;《现代隧道技术》;20151231;第52卷(第6期);正文第171页第2节，图1 * |
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