CN111594264A - Integrated prefabricated side ditch of heating heat preservation for cold district tunnel - Google Patents
Integrated prefabricated side ditch of heating heat preservation for cold district tunnel Download PDFInfo
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- CN111594264A CN111594264A CN202010658820.5A CN202010658820A CN111594264A CN 111594264 A CN111594264 A CN 111594264A CN 202010658820 A CN202010658820 A CN 202010658820A CN 111594264 A CN111594264 A CN 111594264A
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- heat
- prefabricated
- insulating
- heating
- heat preservation
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 238000004321 preservation Methods 0.000 title claims description 32
- 238000009413 insulation Methods 0.000 claims abstract description 42
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 238000005485 electric heating Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
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Classifications
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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
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a heating and heat-insulating integrated prefabricated side ditch for a cold region tunnel, which comprises a prefabricated heat-insulating plate and a prefabricated heat-insulating cover plate, wherein the prefabricated heat-insulating plate comprises a heat-insulating inner core and a protective frame wrapped outside the heat-insulating inner core, the bottom in the protective frame is a vibrating plate with a vibration source, two sides of the vibrating plate are flexibly and hermetically connected with the inner side of the protective frame, an electric heating wire is laid between the vibrating plate and the heat-insulating inner core, and the vibrating plate and the electric heating wire are both connected with an external power supply. The invention has the advantages that: the prefabricated side ditch is matched with the heating action of the electric heating wire and the vibration action of the vibrating plate through the heat insulation performance of the structure of the prefabricated side ditch, so that the heat insulation and drainage anti-icing effects of the tunnel are further improved while the smooth drainage is ensured, and the prefabricated side ditch can meet the construction requirements of the tunnel in the alpine region; in addition, the prefabricated side ditch also has the advantages of high strength, good durability, convenience in construction and assembly and the like.
Description
Technical Field
The invention relates to the technical field of tunnel heat preservation, in particular to a heating and heat preservation integrated prefabricated side ditch for a tunnel in a cold region.
Background
The tunnel side ditches are generally exposed in the air, although the tunnel side ditches are designed with heat insulation cover plates, the heat insulation effect is poor, and a closed surrounding type heat insulation space cannot be formed, so that the drainage section close to the hole opening is easy to freeze, water flows over the side ditches and is immersed into the rail surface to freeze, and the driving safety is damaged.
Patent document No. CN111305898A discloses a prefabricated heat-insulating member for a cold region tunnel side ditch, wherein the prefabricated heat-insulating plate comprises a plurality of heat-insulating single plates with U-shaped cross sections, and each heat-insulating single plate comprises a protective frame and a heat-insulating inner core. This structure can play certain heat preservation effect, can be applicable to most cold district tunnels, however, to some severe cold areas, its thermal insulation performance still can not satisfy the requirement, especially prefabricated heated board bottom, the drainage section that is close to the entrance to a cave still can appear freezing phenomenon. Therefore, the present invention is also directed to further improvement of the above structure to improve the overall thermal insulation performance.
Disclosure of Invention
The invention aims to provide a heating and heat-insulating integrated prefabricated side ditch for a cold region tunnel, so as to further improve the heat-insulating property of the conventional prefabricated heat-insulating component for the side ditch of the cold region tunnel.
The invention realizes the purpose through the following technical scheme:
the utility model provides a cold district tunnel is with integrated prefabricated side ditch of heating heat preservation, includes prefabricated heated board and prefabricated heat preservation apron, prefabricated heated board includes heat preservation inner core and the protective frame of parcel in the heat preservation inner core outside, the bottom is the vibration board of a area vibration source in the protective frame, the both sides and the flexible sealing connection of protective frame inside portion of vibration board have laid electric heating wire between vibration board and the heat preservation inner core, vibration board and electric heating wire all are connected with external power source.
In a further improvement, the vibrating plate is an ultrasonic vibrating plate.
The further improvement is that the vibration plate is a plate body with a built-in micro vibration motor.
In a further improvement, the vibration plate has an irregular protrusion formed on an upper surface thereof.
The improved structure is characterized in that flexible rubber strips are connected to two sides of the vibrating plate, and the vibrating plate is connected with the bottom end of the inner side of the protective frame in a sealing mode through the flexible rubber strips.
The further improvement is that the electric heating wires are laid in an S-shaped bending manner.
The prefabricated heat-insulation plate is further improved in that the prefabricated heat-insulation plate is composed of a plurality of heat-insulation single plates with U-shaped cross sections, adjacent heat-insulation single plates are connected through a frame connecting piece, and the outer side ends of the head and tail heat-insulation single plates are plugged through frame end covers after all the heat-insulation single plates are sequentially connected in series;
the side wall of part of the heat preservation veneer in the heat preservation veneer is provided with a through hole for connecting a tunnel drain pipe, a saddle-shaped sealing element is arranged in the through hole, and the sealing element is bonded with the side wall of the heat preservation veneer through structural adhesive.
The protection frame is further improved in that the protection frame is composed of an inner shell and an outer shell, and the inner shell and the outer shell are assembled and fixed through a male clamping groove and a female clamping groove.
The further improvement lies in that slots for protecting the frame in an inserting mode are formed on two side faces of the frame connecting piece and one side face of the frame end cover.
The further improvement is that the protective frame is made of polyethylene, polyvinyl chloride or polypropylene materials, and the heat-insulating inner core is made of vacuum heat-insulating materials or polyurethane materials.
The invention has the beneficial effects that: the prefabricated side ditch is matched with the heating action of the electric heating wire and the vibration action of the vibrating plate through the heat insulation performance of the structure of the prefabricated side ditch, so that the heat insulation and drainage anti-icing effects of the tunnel are further improved while the smooth drainage is ensured, and the prefabricated side ditch can meet the construction requirements of the tunnel in the alpine region; in addition, the prefabricated side ditch also has the advantages of high strength, good durability, convenience in construction and assembly and the like.
Drawings
FIG. 1 is a sectional view of a prefabricated heat-insulation board and a prefabricated heat-insulation cover board in embodiment 1 of the invention;
fig. 2 is a schematic structural view of a protection frame in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a frame connecting member in embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 5 is a schematic structural view of a frame end cap in embodiment 1 of the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 7 is a sectional view of a prefabricated heat-insulating board and a prefabricated heat-insulating cover plate in embodiment 2 of the invention;
FIG. 8 is a schematic structural view of a heat-insulating single plate connected to a tunnel drain pipe;
FIG. 9 is an installation schematic diagram of a prefabricated insulation board during construction;
in the figure: 1. prefabricating an insulation board; 11. an inner heat-insulating core; 12. a protective frame; 13. a vibrating plate; 131. irregular protrusions; 14. an electric heating wire; 15. a flexible rubber strip; 16. a frame connector; 17. a frame end cap; 18. a seal member; 19. a slot; 2. prefabricating a heat-insulating cover plate; 3. and (4) a side ditch template.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
With reference to fig. 1 to 6, an integrated prefabricated side ditch of heating heat preservation for cold district tunnel, including prefabricated heated board 1 and prefabricated heat preservation apron 2, prefabricated heated board 1 includes heat preservation inner core 11 and the protective frame 12 (both ends need not the parcel) of parcel in heat preservation inner core 11 outside, play the support, the effect of protection, the bottom is a vibration board 13 of taking the vibration source in protective frame 12, the both sides of vibration board 13 and the flexible sealing connection of protective frame 12 inside, electric heating wire 14 has been laid between vibration board 13 and the heat preservation inner core 11, vibration board 13 and electric heating wire 14 all are connected with external power source (not shown in the figure).
After the power supply is switched on, the vibrating plate 13 generates high-frequency vibration, so that the drainage in the prefabricated heat-insulation plate 1 is continuously vibrated, the prefabricated heat-insulation plate cannot be easily frozen, and the drainage cannot be influenced; the electric heating wire 14 can increase the temperature of the discharged water by heating so as not to freeze. The side ditch heat-insulating structure is matched with the side ditch self-omnibearing heat-insulating structure, so that the whole heat-insulating and anti-icing effect is outstanding, and the heat-insulating requirement of the side ditch of the tunnel in the alpine region can be met.
In this embodiment, the vibrating plate 13 is an ultrasonic vibrating plate, and ultrasonic waves generate a "cavitation effect" to realize the vibration of surface water flow and avoid icing. The two sides of the vibrating plate 13 are connected with flexible rubber strips 15, and the vibrating plate 13 is connected with the bottom end of the inner side of the protective frame 12 in a sealing way through the flexible rubber strips 15. The flexible rubber strip 15 is made of aging-resistant and high-elasticity rubber, so that the vibrating plate 13 can vibrate freely, and the whole structure of the prefabricated heat-insulation board 1 cannot be influenced.
In particular, the electric heating wires 14 are laid in an S-shaped curve with a distance of 5-10 cm.
The prefabricated heat-insulation board 1 is composed of a plurality of heat-insulation single boards with U-shaped cross sections, adjacent heat-insulation single boards are connected through a frame connecting piece 16, no gap is left during installation, smooth drainage and heat-insulation effects are guaranteed, and the outer side ends of the head and tail heat-insulation single boards are plugged through a frame end cover 17 after all the heat-insulation single boards are sequentially connected in series for protecting internal heat-insulation materials. In addition, the prefabricated heat-insulation cover plate 2 consists of an upper reinforcing layer and a lower heat-insulation layer, the heat-insulation layer also consists of a protective frame 12 and a heat-insulation inner core 11, the heat-insulation layer is just embedded into the prefabricated heat-insulation plate 1 in size, and the upper reinforcing layer is lapped on the top of the prefabricated heat-insulation plate 1. The side wall of part heat preservation veneer in the heat preservation veneer is opened has the perforation that is used for connecting the tunnel outlet pipe, is equipped with saddle type sealing member 18 in the perforation, and the product can be according to the customized size of demand, makes things convenient for the trompil to connect the hunch foot sluicing tunnel, and bonds through structural adhesive between the lateral wall of sealing member 18 and heat preservation veneer.
In addition, two side surfaces of the frame connecting piece 16 and one side surface of the frame end cover 17 are formed with slots 19 for inserting the protection frame 12. The protection frame 12 is composed of an inner shell and an outer shell, and the inner shell and the outer shell are assembled and fixed through a male and female clamping groove.
In the aspect of materials, the protective frame 12 is made of polyethylene, polyvinyl chloride or polypropylene materials, and other materials can be adopted, so that the protective frame 12 has alkali resistance and low temperature resistance while ensuring the strength; the heat-insulating inner core 11 is made of vacuum heat-insulating materials or polyurethane materials, and other heat-insulating materials can also be adopted.
Example 2
As shown in fig. 7, the structure of embodiment 2 is substantially the same as that of embodiment 1, and the only difference is that: in embodiment 2, the vibrating plate 13 is a plate body with a built-in micro vibrating motor, the micro vibrating motor is used as a vibration source, the irregular protrusions 131 are formed on the upper surface of the vibrating plate 13, the irregular protrusions 131 can increase the vibration transmission effect, the height of the irregular protrusions 131 is not too high, and the transverse continuous protrusions cannot be formed, otherwise, the water drainage is affected.
Referring to fig. 8 and 9, during construction, the U-shaped prefabricated heat-insulation plate 1 can be installed outside a side ditch steel mould in advance, a product with a through hole is selected to be arranged at the water outlet of the drainage tunnel, and the saddle-shaped sealing element 18 is used for connecting and fixing the drainage pipe, so that the heat-insulation tightness can be ensured, and the displacement of the drainage hole in the construction process can be prevented. And then building a side ditch template 3, pouring, demolding after concrete pouring of the lower part of the side ditch is finished, and leaving a prefabricated side ditch surface with the same size as the inner side ditch of the hole to ensure smooth water flow. After the completion, prefabricated heat preservation apron 2 is installed at the upper portion, forms all-round airtight heat preservation space in four sides, ensures the heat preservation effect.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The utility model provides a cold district tunnel is with integrated prefabricated side ditch of heating heat preservation, includes prefabricated heated board (1) and prefabricated heat preservation apron (2), prefabricated heated board (1) is including heat preservation inner core (11) and parcel at the outside protective frame (12) of heat preservation inner core (11), its characterized in that: the bottom is a vibration board (13) of taking the vibration source in protection frame (12), the both sides and the flexible sealing connection of protection frame (12) inside portion of vibration board (13), has laid electric heating wire (14) between vibration board (13) and heat preservation inner core (11), vibration board (13) and electric heating wire (14) all are connected with external power source.
2. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the vibrating plate (13) is an ultrasonic vibrating plate.
3. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the vibrating plate (13) is a plate body with a built-in micro vibrating motor.
4. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 3, characterized in that: irregular protrusions (131) are formed on the upper surface of the vibration plate (13).
5. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: and two sides of the vibrating plate (13) are connected with flexible rubber strips (15), and the vibrating plate (13) is connected with the bottom end of the inner side part of the protective frame (12) in a sealing way through the flexible rubber strips (15).
6. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the electric heating wires (14) are laid in an S-shaped bending mode.
7. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the prefabricated heat-insulation plate (1) consists of a plurality of heat-insulation single plates with U-shaped cross sections, adjacent heat-insulation single plates are connected through a frame connecting piece (16), and the outer side ends of the head and tail heat-insulation single plates are plugged through frame end covers (17) after all the heat-insulation single plates are sequentially connected in series;
the side wall of part of heat preservation veneer in the heat preservation veneer is opened has the perforation that is used for connecting the tunnel outlet pipe, is equipped with saddle type sealing member (18) in the perforation, and bonds through structural adhesive between the lateral wall of sealing member (18) and heat preservation veneer.
8. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 7, characterized in that: and two side surfaces of the frame connecting piece (16) and one side surface of the frame end cover (17) are respectively provided with a slot (19) for inserting the protective frame (12).
9. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the protective frame (12) is composed of an inner shell and an outer shell, and the inner shell and the outer shell are assembled and fixed through a male and female clamping groove.
10. The heating and heat-insulating integrated prefabricated lateral ditch for the cold region tunnel according to claim 1, characterized in that: the protective frame (12) is made of polyethylene, polyvinyl chloride or polypropylene materials, and the heat-insulating inner core (11) is made of vacuum heat-insulating materials or polyurethane materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658820.5A CN111594264A (en) | 2020-07-09 | 2020-07-09 | Integrated prefabricated side ditch of heating heat preservation for cold district tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010658820.5A CN111594264A (en) | 2020-07-09 | 2020-07-09 | Integrated prefabricated side ditch of heating heat preservation for cold district tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN111594264A true CN111594264A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010658820.5A Pending CN111594264A (en) | 2020-07-09 | 2020-07-09 | Integrated prefabricated side ditch of heating heat preservation for cold district tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703872A (en) * | 2022-03-30 | 2022-07-05 | 龙建路桥股份有限公司 | Stability maintaining system for soil slope in seasonal frozen region and construction method |
-
2020
- 2020-07-09 CN CN202010658820.5A patent/CN111594264A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703872A (en) * | 2022-03-30 | 2022-07-05 | 龙建路桥股份有限公司 | Stability maintaining system for soil slope in seasonal frozen region and construction method |
| CN114703872B (en) * | 2022-03-30 | 2022-11-22 | 龙建路桥股份有限公司 | Maintenance system for soil slope in permafrost region and construction method |
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