CN115522422A - Concrete structure containing heat pipe, roadbed and construction method thereof - Google Patents
Concrete structure containing heat pipe, roadbed and construction method thereof Download PDFInfo
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- CN115522422A CN115522422A CN202211137735.XA CN202211137735A CN115522422A CN 115522422 A CN115522422 A CN 115522422A CN 202211137735 A CN202211137735 A CN 202211137735A CN 115522422 A CN115522422 A CN 115522422A
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- 238000010276 construction Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 2
- 238000005536 corrosion prevention Methods 0.000 claims 2
- 238000004891 communication Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010792 warming Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 9
- 230000005855 radiation Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 206010057040 Temperature intolerance Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008543 heat sensitivity Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The embodiment of the invention provides a concrete structure containing a heat pipe, a roadbed and a construction method thereof, relating to the technical field of roadbed engineering. The concrete structure who contains the heat pipe is applied to the road bed, the concrete structure who contains the heat pipe includes concrete slab, the heat pipe body and volatile working medium, the inside of heat pipe body embedding concrete slab, and for concrete slab expose the link outward, concrete slab is used for being on a parallel with the width direction setting of road bed main part in the road bed main part, the material coefficient of thermal expansion of heat pipe body and concrete slab's material coefficient of thermal expansion's difference is in predetermineeing the within range, volatile working medium is filled in the heat pipe body. The concrete structure containing the heat pipes gives full play to the respective excellent performances of the heat pipes and the concrete, and can effectively ensure the thermal stability of the engineering roadbed and the frozen soil below the engineering roadbed under the double influences of climate warming and human activities.
Description
Technical Field
The invention relates to the technical field of roadbed engineering, in particular to a concrete structure containing a heat pipe, a roadbed and a construction method of the concrete structure.
Background
When highway and railway engineering is built in alpine regions, special attention needs to be paid to the problems of heat sensitivity and the like. In recent years, with the rapid development of economy in China, a large number of roads and railways, such as Qinghai-Tibet railways, qinghai-Tibet highways, qingkang highways and the like, have been built in alpine regions. The key to success or failure of road construction in high and cold regions is to ensure the thermal stability of the frozen soil on the roadbed and the lower part.
In recent years, the heat pipe technology is widely applied to road engineering in cold regions, and the excellent heat exchange performance and the active cooling characteristic of the heat pipe technology greatly ensure the heat stability of the roadbed and the frozen soil at the lower part. However, due to the existence of the heat pipe, the temperature field is easily distributed unevenly, which causes differential deformation, thereby causing generation of road surface cracks and affecting safety and stability of roads. Based on the above problems, it is urgent to find a material with high adaptability to heat pipe materials to replace part of the roadbed filler, and redesign the heat pipe arrangement mode, so as to effectively avoid the problem of excessive concentrated refrigeration of the traditional heat pipes, and provide technical support for high-quality construction and safe operation of road engineering in cold regions.
Disclosure of Invention
The invention aims to provide a concrete structure containing heat pipes, a roadbed and a construction method thereof, which can effectively avoid the problem of excessive concentrated refrigeration of the traditional heat pipes and provide technical support for high-quality construction and safe operation of road engineering in cold regions.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a concrete structure with a heat pipe, which is applied to a roadbed, the concrete structure with the heat pipe comprises a concrete plate, a heat pipe body and a volatile working medium, the heat pipe body is embedded inside the concrete plate, and a connecting end is exposed relative to the concrete plate, the concrete plate is arranged in the roadbed main body in a direction parallel to the width direction of the roadbed main body, the difference value between the coefficient of thermal expansion of the material of the heat pipe body and the coefficient of thermal expansion of the material of the concrete plate is within a preset range, and the volatile working medium is filled in the heat pipe body.
In an alternative embodiment, the preset range is 1X10 -5 K -1 。
In an alternative embodiment, the exposed connection end of the heat pipe body is provided with a connection structure, and the connection structure is used for connecting the condensation section or another concrete structure containing the heat pipe or structures.
In an alternative embodiment, the heat pipe body is treated with an anti-corrosion material or an outer surface to prevent corrosion.
In an alternative embodiment, the outer surface of the heat pipe body is provided with a pattern for increasing the adhesion between the heat pipe body and the concrete slab.
In a second aspect, the present invention provides a roadbed, which comprises a cushion layer, a roadbed main body and the concrete structure containing heat pipes of the foregoing embodiments, wherein the roadbed main body is arranged above the cushion layer, the concrete structure containing heat pipes is arranged above the cushion layer and embedded in the roadbed main body, and the concrete plate is positioned at the bottom of the roadbed main body and is parallel to the width direction of the roadbed main body.
In an alternative embodiment, the minimum distance of the concrete slab from the negative slope or the positive slope of the roadbed body is greater than or equal to 30cm, and the minimum distance of the concrete slab from the top surface of the roadbed body is greater than or equal to 1m.
In an alternative embodiment, two or more concrete structures containing heat pipes are embedded in the interior of the roadbed main body, two or more concrete plates are stacked in the interior of the roadbed main body, and the width of the upper concrete plate is smaller than that of the lower concrete plate.
In a third aspect, the present invention provides a method for constructing a roadbed according to the above embodiment, where the method is a cast-in-place construction method, and the method includes: firstly filling a cushion layer on foundation soil and compacting; arranging a grouting template, erecting a reinforcement cage for fixing the heat pipe body, binding the heat pipe body on the reinforcement cage, and enabling two ends of the heat pipe body to extend out of the roadbed main body side slope; pouring concrete into the grouting template, pouring volatile working medium into a liquid filling port reserved on the heat pipe body, then extracting all air in the heat pipe body through the liquid filling port again, and sealing the liquid filling port after the air is extracted to form a concrete structure containing the heat pipe; filling materials are filled in layers to form the roadbed.
In a fourth aspect, the present invention provides a method for constructing a roadbed according to the above embodiment, the method being a factory-prefabricated and field-assembled construction method, including: erecting a reinforcement cage for fixing the heat pipe body in a grouting template of a factory, and binding the heat pipe body on the reinforcement cage; injecting concrete into the grouting template, and connecting the condensation section with the connecting end of the heat pipe body through the connecting structure; injecting volatile working medium into the heat pipe body through an injection port reserved on the heat pipe body, then extracting all air in the heat pipe body through the injection port again, sealing the injection port after the extraction is finished, forming a concrete structure containing a heat pipe, and finishing maintenance; firstly filling a cushion layer on foundation soil and compacting, and then arranging a concrete structure containing heat pipes on the cushion layer; and constructing the roadbed main body, and extending the two ends of the heat pipe body out of the roadbed main body side slope.
The concrete structure containing the heat pipe, the roadbed and the construction method thereof provided by the embodiment of the invention have the beneficial effects that:
the coefficient of thermal expansion of the material of the heat pipe body is close to that of the concrete plate, so that the volatile working medium in the heat pipe body can uniformly absorb heat from the heat pipe body and the concrete plate, the surface of the concrete plate can uniformly absorb heat from the roadbed main body, the concrete plate greatly increases the heat absorption area, the effect of uniformly cooling the interior of the roadbed main body is realized, and the problem of cracking of the pavement near the heat pipe can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a concrete structure containing a heat pipe according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a roadbed according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a roadbed according to a second viewing angle provided by the embodiment of the invention.
Icon: 100-concrete structure containing heat pipes; 200-roadbed; 1-concrete plate; 2-heat pipe body; 21-a connection end; 3-a linking structure; 4-a condensation section; 5-volatile working medium; 6-cushion layer; 7-roadbed main body; 71-negative slope; 72-sunny slope.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The frozen soil is various rocks (soil) containing ice and having a temperature below 0 ℃, and can be divided into island-shaped frozen soil, seasonal frozen soil and permafrost soil according to the duration of a frozen state of a rock-soil body. The frozen soil is very sensitive to temperature change, and the temperature rise and the degradation of the frozen soil can be caused by climate warming and engineering construction, so that the stability of an upper road is influenced. When there is a difference in the absorption of solar radiation by the side slopes on both sides of the roadbed 200, the side slopes on both sides are called yin-yang slopes 72, which further aggravate the diseases of the frozen soil roadbed 200, induce the uneven deformation, longitudinal cracking, etc. of the roadbed 200, and directly affect the service function of the road. The heat pipe is an active cooling technology with the most obvious monomer cooling effect in the permafrost roadbed 200, and is widely applied to the stability maintenance of the permafrost roadbed 200 in some major projects. However, the inventor finds that the local excessive cooling of the conventional heat pipe causes uneven distribution of the temperature field due to the limitation of the difference of physical parameters between the conventional heat pipe and the surrounding soil body or filler, thereby causing the problems of cracks on the roadbed 200, differential deformation of the roadbed 200, and the like.
Based on such problems, it is proposed in the present embodiment to use concrete in combination with conventional heat pipes and to arrange the concrete horizontally in the roadbed 200, so that the concrete can resist uneven deformation of the roadbed 200 with high rigidity. The heat pipe is made of a material with a thermal expansion coefficient similar to that of concrete, so that the problem of cracking of the road surface near the heat pipe can be effectively reduced.
Referring to fig. 1, the present embodiment provides a concrete structure 100 with a heat pipe, where the concrete structure 100 with a heat pipe includes a concrete slab 1, a heat pipe body 2, and a volatile working medium 5, the heat pipe body 2 is wholly or partially embedded in the concrete slab 1, and a connection end 21 is exposed relative to the concrete slab 1, the concrete slab 1 is arranged in the roadbed main body 7 in a direction parallel to the width direction of the roadbed main body 7, and the concrete slab 1 is arranged in the roadbed main body 7 horizontally in a case that the width direction of the roadbed main body 7 is itself horizontal.
The volatile working medium 5 is filled in the heat pipe body 2, the volatile working medium 5 is fully or partially filled according to actual requirements, and the volatile working medium 5 is ensured to be nontoxic and not corrode a heat pipe and a soil body. In this embodiment, the volatile working medium 5 may be liquid nitrogen.
The material thermal expansion coefficient of the concrete plate 1 is 1x10 -5 K -1 ～1.5*10 -5 K -1 The coefficient of thermal expansion of the material of the heat pipe body 2 may be 1x10 -5 K -1 ～2*10 -5 K -1 The material of the heat pipe body 2 may be metal or alloy, such as carbon steel, beryllium copper, S136 steel, P20 steel, 8407 steel, NAK80 steel, nickel-aluminum alloy, and the like. The difference between the thermal expansion coefficient of the material of the heat pipe body 2 and the thermal expansion coefficient of the material of the concrete plate 1 is within a preset range, and the preset range can be 1 to 10 -5 K -1 That is to say, the coefficient of thermal expansion of the material of the heat pipe body 2 is close to that of the concrete plate 1, so that the volatile working medium 5 in the heat pipe body 2 can uniformly absorb heat from the heat pipe body 2 and the concrete plate 1, and the surface of the concrete plate 1 can uniformly absorb heat from the roadbed main body 7, moreover, the concrete plate 1 greatly increases the heat absorption area, thereby realizing the effect of uniformly cooling the interior of the roadbed main body 7, and effectively reducing the problem of cracking of the pavement near the heat pipe.
Connecting end 21 that heat pipe body 2 exposes outward has connection structure 3, can connect condensation segment 4, and condensation segment 4 can be the hollow tube of taking the fin, and easy volatile working medium 5 is exothermic in the condensation of condensation segment 4, and easy volatile working medium 5 evaporates the heat absorption in concrete panel 1, plays the effect to the even cooling of concrete panel 1, and the inside even cooling of rethread concrete panel 1 to road base main part 7. The connecting end 21 can also be communicated with another or a plurality of concrete structures 100 containing heat pipes, so that the influence range of the concrete structure 100 containing heat pipes is extended, and the modular construction capacity of the structure is improved.
The heat pipe body 2 is made of an anti-corrosion material or the outer surface of the heat pipe body is subjected to anti-corrosion treatment so as to prevent corrosive chemical substances in concrete from corroding the heat pipe material. In order to ensure the effective bonding between the concrete plate 1 and the heat pipe body 2, any pattern with the function of increasing the bonding force can be properly added on the outer surface of the heat pipe body 2. The heat pipe body 2 should be sealed without leaking the volatile working medium 5 inside. The shape and size of the heat pipe body 2 depend on the actual requirement.
Referring to fig. 2 and fig. 3, the present embodiment further provides a roadbed 200, taking the yin-yang slope 72 roadbed 200 as an example, it should be noted that the yin-yang slope 72 roadbed 200 is a roadbed 200 having a yin slope 71 and a yang slope 72 which receive different solar radiation, and the yin slope 71 and the yang slope 72 are determined according to the magnitude of solar radiation absorbed by the slopes on both sides of the roadbed 200, and are related to the roadbed 200 trend, the roadbed 200 height and the local solar radiation angle. The greater the amount of solar radiation absorbed is the sunny slope 72, whereas the cloudy slope 71.
The concrete structure 100 containing the heat pipe is preferably used as the sandwich portion of the frozen soil roadbed 200 in the present embodiment. The roadbed 200 provided by the embodiment comprises a cushion layer 6, a concrete structure 100 containing heat pipes and a roadbed main body 7, wherein the roadbed main body 7 is arranged above the cushion layer 6, and the concrete structure 100 containing heat pipes is arranged above the cushion layer 6 and is embedded in the roadbed main body 7. Wherein, the cushion layer 6 can also use the natural ground surface to act as, reduces the construction cost.
Preferably, the concrete slab 1 is located at the bottom of the roadbed body 7 and is parallel to the width direction of the roadbed body 7. The minimum distance between the concrete plate 1 and the negative slope 71 or the positive slope 72 is greater than or equal to 30cm, and the minimum distance between the concrete plate 1 and the top surface of the roadbed main body 7 is greater than or equal to 1m, so that the structural stability of the roadbed main body 7 is ensured.
For a roadbed main body 7 with a height of more than 3m, two or more concrete structures 100 containing heat pipes may be embedded inside the roadbed main body 7. Specifically, set up two or more than two concrete slab 1 in the inside range upon range of road bed main part 7, because the cross-sectional shape of road bed main part 7 is isosceles trapezoid, the width that can set up concrete slab 1 of top is less than the width of concrete slab 1 of below, realizes more even, comprehensive cooling to road bed main part 7. Preferably, two concrete slabs 1 adjacent to each other up and down may be spaced apart from each other.
The embodiment further provides a construction method of the roadbed 200, and the embodiment adopts a cast-in-place construction method. Before the roadbed 200 of the embodiment is constructed, the concrete structure 100 containing the heat pipe is determined according to the construction design drawing and the relevant specification. According to the specific engineering requirements, a cushion layer 6 meeting the standard requirements can be filled on the foundation soil and compacted. Then, a grouting template is arranged, a reinforcement cage for fixing the heat pipe body 2 is erected, and the heat pipe body 2 is bound on the reinforcement cage. The two ends of the heat pipe body 2 extend out of the slope of the roadbed main body 7. Next, concrete is poured into the form to form the concrete structure 100 containing the heat pipe. After the concrete structure 100 containing the heat pipe is cured to allow subsequent normal construction, wherein the curing time is not less than 14 days, the filler is filled in layers according to relevant specifications and compacted to a required thickness. Meanwhile, for road sections with more water accumulation and rainfall, drainage measures should be taken for the roadbed 200.
If a plurality of concrete structures 100 containing heat pipes need to be spliced, after the roadbed main body 7 is constructed, the concrete structures 100 containing the heat pipes are spliced. The condensation section 4 is connected with the connecting end 21 of the heat pipe body 2 through the connecting structure 3. Inject volatile working medium 5 into heat pipe body 2 through the notes liquid mouth of reserving, follow this again through annotating all air in the liquid mouth extraction heat pipe body 2, sealed notes liquid mouth after finishing. After splicing, the concrete structure 100 containing the heat pipes should be checked for proper operation. It should be noted that the arrangement form and the arrangement length of the heat pipe bodies 2 in the concrete slab 1 in the concrete structure 100 containing heat pipes in the present embodiment are not unique.
The present embodiment further provides another construction method of the roadbed 200, and the present embodiment adopts a construction method of factory prefabrication and field assembly. Before the roadbed 200 of the embodiment is constructed, the concrete structure 100 containing the heat pipe is determined according to the construction design drawing and the relevant specification. According to specific engineering requirements, a reinforcing cage for fixing the heat pipe body 2 is erected in a grouting template of a factory, and the heat pipe body 2 is bound on the reinforcing cage. Then, concrete is poured into the grouting template, and the condensation section 4 is connected with the connecting end 21 of the heat pipe body 2 through the connecting structure 3. Inject volatile working medium 5 into heat pipe body 2 through the notes liquid mouth of reserving, through annotating all air in the liquid mouth extraction heat pipe body 2 once more afterwards, the sealed liquid mouth of annotating of back that finishes forms the concrete structure 100 that contains the heat pipe to accomplish the maintenance, inspect again whether the concrete structure 100 that contains the heat pipe can carry out normal work. Next, a bedding layer 6 meeting the specification is filled on the foundation soil and compacted, and then the concrete structure 100 containing the heat pipe is arranged on the bedding layer 6. Finally, the roadbed main body 7 is constructed, and both ends of the heat pipe body 2 are extended out of the slope of the roadbed main body 7.
The concrete structure 100 containing the heat pipe, the roadbed 200 and the construction method thereof provided by the embodiment of the invention have the beneficial effects that:
1. the respective excellent performances of the heat pipes and the concrete are fully exerted, and the thermal stability of the engineering roadbed and the frozen soil below the engineering roadbed under the double influences of climate warming and human activities can be effectively ensured;
2. the concrete structure 100 containing the heat pipe is reserved with the connecting end 21 and the connecting structure 3, so that function expansion can be realized, and the modular construction capability of the structure is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a concrete structure who contains heat pipe, is applied to the road bed, a serial communication port, concrete structure who contains the heat pipe includes concrete slab (1), heat pipe body (2) and volatile working medium (5), heat pipe body (2) embedding the inside of concrete slab (1), and for concrete slab (1) exposes link (21) outward, the width direction that concrete slab (1) are used for being on a parallel with road bed main part (7) sets up in the road bed main part (7), the material coefficient of thermal expansion of heat pipe body (2) with the difference of the material coefficient of thermal expansion of concrete slab (1) is in predetermineeing the within range, volatile working medium (5) are filled in heat pipe body (2).
2. A concrete structure containing a heat pipe according to claim 1, wherein said predetermined range is 1X10 -5 K -1 。
3. A concrete structure containing heat pipes according to claim 1, characterized in that the exposed connecting end (21) of the heat pipe body (2) is provided with a connecting structure (3), and the connecting structure (3) is used for connecting the condensation section (4) or another concrete structure containing heat pipes.
4. A heat pipe-containing concrete structure according to claim 1, characterized in that the heat pipe body (2) is subjected to corrosion prevention treatment with a corrosion prevention material or an outer surface.
5. A heat pipe-containing concrete structure according to claim 1, characterized in that the outer surface of said heat pipe body (2) is provided with a pattern for increasing the adhesion between said heat pipe body (2) and said concrete slab (1).
6. A roadbed, characterized in that the roadbed comprises an underlayer (6), a roadbed main body (7) and the concrete structure containing the heat pipe of claim 1, the roadbed main body (7) is arranged above the underlayer (6), the concrete structure containing the heat pipe is arranged above the underlayer (6) and embedded in the roadbed main body (7), and the concrete plate (1) is positioned at the bottom of the roadbed main body (7) and parallel to the width direction of the roadbed main body (7).
7. The foundations according to claim 6, characterized in that the concrete slab (1) has a minimum distance from the negative slope (71) or positive slope (72) of the foundation body (7) greater than or equal to 30cm and the concrete slab (1) has a minimum distance from the top surface of the foundation body (7) greater than or equal to 1m.
8. The roadbed according to claim 6, characterized in that two or more concrete structures containing heat pipes are embedded in the roadbed body (7), two or more concrete slabs (1) are stacked in the roadbed body (7), and the width of the upper concrete slab (1) is smaller than the width of the lower concrete slab (1).
9. A method of constructing a roadbed according to claim 6, wherein the construction method is a cast-in-place construction method comprising: firstly filling a cushion layer (6) on foundation soil and compacting; arranging a grouting template, erecting a reinforcement cage for fixing the heat pipe body (2), binding the heat pipe body (2) on the reinforcement cage, and enabling two ends of the heat pipe body (2) to extend out of the side slope of the roadbed main body (7); pouring concrete into the grouting template, pouring the volatile working medium (5) into a reserved liquid injection port on the heat pipe body (2), then extracting all air in the heat pipe body (2) through the liquid injection port again, and sealing the liquid injection port after the air extraction is finished to form the concrete structure containing the heat pipe; filling materials in a layered mode to form the roadbed.
10. The method for constructing a roadbed according to claim 6, wherein the construction method is a factory prefabrication and field assembly construction method, and comprises the following steps: erecting a reinforcement cage for fixing the heat pipe body (2) in a grouting template of a factory, and binding the heat pipe body (2) on the reinforcement cage; pouring concrete into the grouting template, and connecting the condensation section (4) with the connecting end (21) of the heat pipe body (2) through the connecting structure (3); injecting the volatile working medium (5) into the heat pipe body (2) through a liquid injection port reserved on the heat pipe body (2), then extracting all air in the heat pipe body (2) through the liquid injection port again, sealing the liquid injection port after the air extraction is finished, forming a concrete structure containing a heat pipe, and finishing maintenance; the cushion layer (6) is filled and compacted on foundation soil, and then the concrete structure containing the heat pipe is arranged on the cushion layer (6); and (3) constructing the roadbed main body (7), and extending the two ends of the heat pipe body (2) out of the side slope of the roadbed main body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137735.XA CN115522422A (en) | 2022-09-19 | 2022-09-19 | Concrete structure containing heat pipe, roadbed and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137735.XA CN115522422A (en) | 2022-09-19 | 2022-09-19 | Concrete structure containing heat pipe, roadbed and construction method thereof |
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| CN115522422A true CN115522422A (en) | 2022-12-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117904917A (en) * | 2024-03-01 | 2024-04-19 | 哈尔滨工业大学（威海） | Method for maintaining thermal stability of frozen soil foundation year by utilizing heat pipe system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257876A (en) * | 1990-11-29 | 1993-11-02 | Mitsubishi Yuka Industrial Products Corporation | Method for constructing asphalted road having heating pipe laid thereunder |
| CN101481899A (en) * | 2009-01-09 | 2009-07-15 | 中国科学院寒区旱区环境与工程研究所 | Use of heat pipe-block rubble slope protection cooling heat insulating composite roadbed in broad width road |
| CN206034218U (en) * | 2016-08-26 | 2017-03-22 | 中交第一公路勘察设计研究院有限公司 | Hot pin compound road bed of block stone layer cooling |
| CN112376344A (en) * | 2020-10-29 | 2021-02-19 | 东南大学 | Double-layer continuous reinforced concrete hollow slab concrete pavement composite structure for permafrost region and construction method |
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
| CN217078281U (en) * | 2021-09-23 | 2022-07-29 | 河南理工大学 | Pavement deicing and cooling system based on underground pipe gallery structure |
| CN217438593U (en) * | 2022-05-12 | 2022-09-16 | 杭州宇辉建设科技有限公司 | Highway subgrade heat insulation structure |
-
2022
- 2022-09-19 CN CN202211137735.XA patent/CN115522422A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257876A (en) * | 1990-11-29 | 1993-11-02 | Mitsubishi Yuka Industrial Products Corporation | Method for constructing asphalted road having heating pipe laid thereunder |
| CN101481899A (en) * | 2009-01-09 | 2009-07-15 | 中国科学院寒区旱区环境与工程研究所 | Use of heat pipe-block rubble slope protection cooling heat insulating composite roadbed in broad width road |
| CN206034218U (en) * | 2016-08-26 | 2017-03-22 | 中交第一公路勘察设计研究院有限公司 | Hot pin compound road bed of block stone layer cooling |
| CN112376344A (en) * | 2020-10-29 | 2021-02-19 | 东南大学 | Double-layer continuous reinforced concrete hollow slab concrete pavement composite structure for permafrost region and construction method |
| CN217078281U (en) * | 2021-09-23 | 2022-07-29 | 河南理工大学 | Pavement deicing and cooling system based on underground pipe gallery structure |
| CN113846529A (en) * | 2021-10-21 | 2021-12-28 | 中建七局第四建筑有限公司 | Bridge deck deicing temperature control system and method |
| CN217438593U (en) * | 2022-05-12 | 2022-09-16 | 杭州宇辉建设科技有限公司 | Highway subgrade heat insulation structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117904917A (en) * | 2024-03-01 | 2024-04-19 | 哈尔滨工业大学（威海） | Method for maintaining thermal stability of frozen soil foundation year by utilizing heat pipe system |
| CN117904917B (en) * | 2024-03-01 | 2024-08-02 | 哈尔滨工业大学（威海） | Method for maintaining thermal stability of frozen soil foundation throughout year by utilizing frozen soil subgrade heat pipe system with radiation refrigeration coupling phase change module |
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