A water vapor regulation-based subgrade frost heaving prevention treatment system

Abstract

The utility model discloses a kind of roadbed frost heaving prevention treatment systems based on water vapor regulation, it is characterized in that, including the water vapor regulation pipeline embedded in roadbed, the water vapor regulation pipeline is evenly distributed and is provided with opening, water vapor regulation pipeline one end is provided with the vent hole exposed to roadbed outer side, water vapor regulation pipeline is wound and is provided with electric heating band, electric heating band and controller are connected.The utility model can be by internal embedding pipeline and adsorption effect and water vapor in roadbed filler internal adsorption external discharge, to realize the water vapor regulation inside roadbed, finally reach the effect of controlling frost heaving deformation.Better reduce the frost heaving harm, improve roadbed security.

Description

Technical Field

[0001] This utility model relates to the field of roadbed maintenance engineering technology, specifically to a roadbed anti-frost heave treatment system based on water vapor regulation. Background Technology

[0002] A roadbed is the foundation of a track or road surface, and is an earthwork structure formed through excavation or filling. The main function of a roadbed is to provide the necessary foundation support for the laying of tracks or roads and the operation of trains or vehicles, and to bear the static and dynamic loads of tracks, locomotives, rolling stock, or road surface and traffic loads, while transferring and dispersing the loads deep into the foundation.

[0003] In seasonally frozen soil regions, strictly controlling the fine particle content of fill materials is a key measure to prevent frost heave during roadbed construction. The aim is to block moisture migration pathways, thereby inhibiting frost heave deformation. However, in engineering practice, even with strict standards for controlling fine particle content, frost heave deformation still occurs frequently. Studies have shown that air convection and water vapor transport within coarse-particle fill materials continue under the influence of temperature gradients. Combined with the low temperature of the fill material in the surface layer and below the frost depth in winter, water vapor continuously condenses and accumulates in this area, leading to frost heave. The occurrence of frost heave can severely damage the roadbed structure and is one of the greatest hidden dangers to roadbed safety.

[0004] Therefore, how to better regulate the water vapor inside the roadbed to control frost heave deformation is a direction that those skilled in the art need to consider and study. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a roadbed anti-frost heave treatment system based on water vapor control that can better achieve water vapor control inside the roadbed, so as to better reduce the damage of frost heave and improve the safety of the roadbed.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A roadbed frost heave prevention system based on water vapor control is characterized by comprising a water vapor control pipe buried in the roadbed, with openings evenly distributed on the water vapor control pipe, an exhaust hole exposed on the outer side of the roadbed at one end of the water vapor control pipe, and an electric heating tape wrapped around the water vapor control pipe, the electric heating tape being connected to a battery and a controller respectively.

[0008] In this way, the electric heat generated by the heating tape can vaporize the water vapor inside the roadbed, and then discharge it from the vent through the water vapor control pipe, thereby reducing the water vapor content inside the roadbed and mitigating the damage caused by frost heave from the root.

[0009] One side of the roadbed is also equipped with solar panels, which are connected to batteries. The batteries are connected to the heating tape and the controller.

[0010] This makes it easy to absorb solar energy to generate electricity for the heating tape.

[0011] The exhaust port is also equipped with a non-powered fan for drawing air from the exhaust port.

[0012] This allows for better extraction and discharge of water vapor from the water vapor control pipeline. The non-powered fan is an existing device that utilizes natural wind power for air extraction; its specific structure will not be detailed here.

[0013] The other end of the roadbed has an air intake hole that protrudes from the outer side of the roadbed.

[0014] This makes it easier to remove water vapor from the water vapor control pipe through exhaust.

[0015] The air inlet is horizontally outward and the water vapor control pipe is inclined downward towards the end where the air inlet is located.

[0016] In this way, if a small amount of rainwater enters the water vapor control pipe during rain, it can be quickly discharged from the air inlet and will not remain inside the pipe and seep back into the roadbed.

[0017] The water vapor control pipe is also provided with a layer of water-absorbing material.

[0018] This absorbent material layer can better absorb the moisture in the roadbed, and after being vaporized by the electric heating tape, it is discharged through the water vapor control pipe.

[0019] The water vapor control pipeline is also covered with a layer of permeable geotextile.

[0020] This better prevents soil particles from entering, protects the internal structure, and allows moisture to enter the pipe.

[0021] The water vapor control pipe is also provided with an inward-facing one-way liquid guiding film.

[0022] This ensures that water vapor in the roadbed can enter the water vapor control pipe through the one-way liquid film, while preventing rainwater entering the pipe from seeping back into the roadbed.

[0023] The water vapor control pipe is first fitted with a unidirectional liquid guiding film, then with a water-absorbing material layer, then with an electric heating tape, and finally with a permeable geotextile on the outermost side.

[0024] This allows each level to better fulfill its role.

[0025] The air inlet and air outlet are equipped with electromagnetic switch valves, which are connected to the controller and the battery. Humidity sensors are also installed inside the water-absorbing material layer outside the water vapor control pipe and outside the air inlet or air outlet, and are connected to the controller.

[0026] In this way, when the humidity sensor installed on the outside of the air inlet or outlet detects excessive humidity or rain, it can control the electromagnetic switch valve to close, preventing rainwater and moisture from entering the pipe. When the external humidity is lower than the standard, the electromagnetic switch valve will open to exhaust air. At the same time, when the humidity inside the absorbent material layer is detected to be sufficient, the electric heating tape will be controlled to heat up, vaporizing the moisture absorbed in the absorbent material layer and then discharging it.

[0027] Therefore, this utility model can absorb and discharge water vapor inside the roadbed fill material through embedded pipes and adsorption, thereby achieving water vapor regulation inside the roadbed and ultimately controlling frost heave deformation. This better mitigates frost heave damage and greatly improves roadbed safety. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of a separate water vapor control pipeline.

[0030] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0031] Figure 4 for Figure 2 A schematic diagram of the structure of a separate water vapor control pipeline. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to specific embodiments.

[0033] Example 1: See Figure 1-2 A roadbed frost heave prevention system based on water vapor control is characterized by including a water vapor control pipe 1 buried in the roadbed, openings 2 evenly distributed on the water vapor control pipe 1, an exhaust hole 3 exposed on the outer side of the roadbed at one end of the water vapor control pipe, and an electric heating tape 4 wrapped around the water vapor control pipe, which is connected to a battery 5 and a controller 6 respectively.

[0034] In this way, the electric heat generated by the heating tape can vaporize the water vapor inside the roadbed, and then discharge it from the vent through the water vapor control pipe, thereby reducing the water vapor content inside the roadbed and mitigating the damage caused by frost heave from the root.

[0035] Among them, a solar panel 7 is also installed on one side of the roadbed. The solar panel 7 is connected to the battery 5, and the battery 5 is connected to the heating tape and the controller.

[0036] This makes it easy to absorb solar energy to generate electricity for the heating tape.

[0037] A non-powered fan 8 for drawing air from the exhaust port 3 is also installed upwards at the exhaust port 3.

[0038] This allows for better extraction and discharge of water vapor from the water vapor control pipeline. The non-powered fan is an existing device that utilizes natural wind power for air extraction; its specific structure will not be detailed here.

[0039] The other end of the roadbed is provided with an air inlet 9 that protrudes from the outer side of the roadbed.

[0040] This makes it easier to remove water vapor from the water vapor control pipe through exhaust.

[0041] The air inlet 9 is horizontally outward and the water vapor control pipe is inclined downward towards the end where the air inlet is located.

[0042] In this way, if a small amount of rainwater enters the water vapor control pipe during rain, it can be quickly discharged from the air inlet and will not remain inside the pipe and seep back into the roadbed.

[0043] The water vapor control pipe 1 is also provided with a water-absorbing material layer 11.

[0044] This absorbent material layer can better absorb the moisture in the roadbed, and after being vaporized by the electric heating tape, it is discharged through the water vapor control pipe.

[0045] The water vapor control pipeline is also provided with a layer of permeable geotextile 12.

[0046] This better prevents soil particles from entering, protects the internal structure, and allows moisture to enter the pipe.

[0047] The water vapor control pipe is also provided with an inward-facing unidirectional liquid-guiding film 13.

[0048] This ensures that water vapor in the roadbed can enter the water vapor control pipe through the one-way liquid film, while preventing rainwater entering the pipe from seeping back into the roadbed.

[0049] The water vapor control pipe is first provided with a one-way liquid guiding film 13, then with a water-absorbing material layer 11, then with an electric heating tape 4, and finally with a permeable geotextile 12 on the outermost side.

[0050] This allows each level to better fulfill its role.

[0051] The absorbent material layer 11 is equipped with a humidity sensor (not shown in the figure) connected to the controller. When the humidity inside the absorbent material layer reaches a sufficient level, the heating element is controlled to heat up, vaporizing the water absorbed inside the absorbent material layer and discharging it.

[0052] Example 2: See Figure 3-4 As shown: A roadbed anti-frost heave treatment system based on water vapor control is characterized by including a water vapor control pipe 1 buried in the roadbed, openings 2 evenly distributed on the water vapor control pipe 1, an exhaust hole 3 exposed on the outer side of the roadbed at one end of the water vapor control pipe, and an electric heating tape 4 wrapped around the water vapor control pipe. The electric heating tape 4 is connected to a battery 5 and a controller 6 respectively.

[0053] In this way, the electric heat generated by the heating tape can vaporize the water vapor inside the roadbed, and then discharge it from the vent through the water vapor control pipe, thereby reducing the water vapor content inside the roadbed and mitigating the damage caused by frost heave from the root.

[0054] Among them, a solar panel 7 is also installed on one side of the roadbed. The solar panel 7 is connected to the battery 5, and the battery 5 is connected to the heating tape and the controller.

[0055] This makes it easy to absorb solar energy to generate electricity for the heating tape.

[0056] A non-powered fan 8 for drawing air from the exhaust port 3 is also installed upwards at the exhaust port 3.

[0057] This allows for better extraction and discharge of water vapor from the water vapor control pipeline. The non-powered fan is an existing device that utilizes natural wind power for air extraction; its specific structure will not be detailed here.

[0058] The other end of the roadbed is provided with an air inlet 9 that protrudes from the outer side of the roadbed.

[0059] This makes it easier to remove water vapor from the water vapor control pipe through exhaust.

[0060] The air inlet 9 is horizontally outward and the water vapor control pipe is inclined downward towards the end where the air inlet is located.

[0061] In this way, if a small amount of rainwater enters the water vapor control pipe during rain, it can be quickly discharged from the air inlet and will not remain inside the pipe and seep back into the roadbed.

[0062] The water vapor control pipe 1 is also provided with a water-absorbing material layer 11.

[0063] This absorbent material layer can better absorb the moisture in the roadbed, and after being vaporized by the electric heating tape, it is discharged through the water vapor control pipe.

[0064] The water vapor control pipeline is also provided with a layer of permeable geotextile 12.

[0065] This better prevents soil particles from entering, protects the internal structure, and allows moisture to enter the pipe.

[0066] The air inlet and air outlet are equipped with electromagnetic switch valves 15, which are connected to the controller and the battery. A humidity sensor 16 is also installed inside the water-absorbing material layer outside the water vapor control pipe and outside the air inlet or air outlet, and is connected to the controller.

[0067] In this way, when the humidity sensor installed on the outside of the air inlet or outlet detects excessive humidity or rain, it can control the electromagnetic switch valve to close, preventing rainwater and moisture from entering the pipe. When the external humidity is lower than the standard, the electromagnetic switch valve will open to exhaust air. At the same time, when the humidity inside the absorbent material layer is detected to be sufficient, the electric heating tape will be controlled to heat up, vaporizing the moisture absorbed in the absorbent material layer and then discharging it.

Claims

1. A water vapor regulation based embankment frost heaving prevention treatment system, characterized in that, It includes a water vapor control pipe buried in the roadbed, with openings evenly distributed on the water vapor control pipe. One end of the water vapor control pipe has an exhaust hole exposed on the outer side of the roadbed. An electric heating tape is wrapped around the water vapor control pipe, and the electric heating tape is connected to the battery and the controller respectively.

2. The water vapor regulation based embankment frost heaving prevention system of claim 1, wherein, A solar panel is also installed on one side of the roadbed. The solar panel is connected to a battery, and the battery is connected to the heating tape and the controller.

3. The water vapor regulation based frost heave prevention system for embankment according to claim 2, wherein, A non-powered fan for drawing air from the exhaust port is also installed upwards at the exhaust port.

4. The water vapor regulation based frost heaving prevention system for embankment according to claim 3, wherein, An air intake hole is provided at the other end of the roadbed, protruding from the outer side of the roadbed.

5. The water vapor regulation based frost heaving prevention system for embankment according to claim 4, wherein, The air inlet is set horizontally outwards, and the water vapor control pipe is set downwards towards the end where the air inlet is located.

6. The water vapor regulation based frost heaving prevention system for embankment according to claim 5, wherein, The water vapor control pipe is also equipped with a layer of water-absorbing material.

7. The roadbed frost heave prevention system based on water vapor regulation as described in claim 6, characterized in that, The water vapor control pipeline is also covered with a layer of permeable geotextile.

8. The roadbed frost heave prevention system based on water vapor regulation as described in claim 7, characterized in that, The water vapor control pipeline is also equipped with an inward-facing one-way liquid guiding film.

9. The water vapor regulation based frost heaving prevention system for embankment according to claim 8, wherein, The water vapor control pipeline is first fitted with a one-way liquid guiding film, then with a water-absorbing material layer, then with an electric heating tape, and finally with a permeable geotextile on the outermost side.

10. The water vapor regulation based frost heaving prevention system for embankment according to claim 6, wherein, Electromagnetic switch valves are also installed at the air inlet and exhaust outlet. The electromagnetic switch valves are connected to the controller and the battery. Humidity sensors are also installed inside the water-absorbing material layer outside the water vapor control pipe and outside the air inlet or exhaust outlet. The humidity sensors are connected to the controller.

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