Heat damage prevention and control system for frozen soil roadbed

Abstract

The heat damage prevention and control system comprises a roadbed body, the two sides of the roadbed body are connected with a flat soil layer through slopes, a corrosion-resistant heat exchange plate is arranged on the slope of the roadbed body in an attached mode, a row of inclined water collection boxes are installed on the surface of the heat exchange plate, and a net face used for filtering is arranged at an opening in the upper end of each water collection box. The bottom ends of all the water collecting boxes are in butt joint with a transverse water pipe through guide pipes, the transverse water pipe is connected with a water containing box buried in a flat soil layer, an upper baffle is in butt joint with the side face of the upper end between every two adjacent water collecting boxes, and an enclosure baffle is installed at the top of the heat exchange plate. Through the design of the heat exchange plates and related structures, heat exchange operation can be carried out on the ground surface and underground at the same time, heat in the frozen soil roadbed is effectively absorbed and dispersed, and the heat damage problems such as frozen soil melting and roadbed settlement caused by temperature rise can be relieved or prevented.

Description

Technical Field

[0001] The invention relates to the technical field of heat damage prevention and control of frozen soil roadbed, and in particular to a heat damage prevention and control system for frozen soil roadbed. Background Art

[0002] In permafrost areas, due to the particularity of climate and geological conditions, the stability of the roadbed is often seriously affected by heat damage. With global warming, the temperature in the frozen soil area continues to rise in spring and summer, resulting in a decrease in the thermal stability of the frozen soil roadbed, which in turn causes a series of roadbed diseases, such as roadbed thawing and settlement, mud and slurry, etc. These diseases not only affect the road's capacity and service life, but may also pose a serious threat to driving safety.

[0003] Secondly, the Qinghai-Tibet Plateau is the main distribution area of ​​permafrost and also an area with significant changes in precipitation. In recent decades, the overall precipitation on the plateau has shown an upward trend, especially the total amount of rainfall and extreme rainfall events in summer. The precipitation on the Qinghai-Tibet Plateau is mainly concentrated in summer and autumn, accounting for 70% to 90% of the annual precipitation. The existing plateau roadbed is very wide, and the flow of rainwater from the road surface to the slope is very large. Continuous scouring can easily cause damage to the instability of the roadbed slope. The flowing rainwater can easily infiltrate the frozen soil on the slope and near the slope, which will not only reduce the suction of the soil matrix, but also bring in a large amount of heat, causing the ice crystals in the frozen soil to melt and increase the water content, which will further reduce the shear strength of the soil and increase the risk of roadbed slope instability.

[0004] Therefore, based on the above two points, it is particularly necessary to design a thermal damage prevention and control system for frozen soil roadbed to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a heat damage prevention and control system for frozen soil roadbed, and water collection and heat exchange devices are installed on the slopes on both sides of the roadbed to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides a heat damage prevention and control system for frozen soil roadbed, comprising: a roadbed main body, the two sides of the roadbed main body are connected to the flat soil layer through slopes, corrosion-resistant heat exchange plates are fitted on the slopes of the roadbed main body, a row of inclined water collection boxes are installed on the surface of the heat exchange plates, the upper opening of the water collection box is provided with a mesh surface for filtering, and the bottom ends of all water collection boxes are connected to horizontal water pipes through conduits, the horizontal water pipes are connected to water boxes buried in the flat soil layer, the upper side surfaces of the adjacent water collection boxes are connected to upper baffles, the top of the heat exchange plate is installed with a protective baffle, one end of the protective baffle is connected to a water collection box at one end, and the inner wall of the protective baffle is connected to another water collection box at the other end through a slot plate;

[0007] A water inlet is provided at a position where the enclosure baffle is connected to the water collecting box. The water box is connected to a water pump installed on the top surface of the flat soil layer through a valve pipe. The water pump is connected to a row of hollow heat pipes through a water distribution pipe. The lower end of the hollow heat pipe is buried in the flat soil layer, and the top end is connected to the heat dissipation pipe through bolts. A water supply pipe that penetrates into the main slope of the roadbed is installed on the side wall of the hollow heat pipe, and an electromagnetic valve is installed on the pipeline connecting the horizontal water pipe to the water box.

[0008] Preferably, a lower baffle is butted against the lower end side surfaces of adjacent water collecting boxes, and a drain outlet is provided on the lower baffle, in which a filter screen can be installed.

[0009] Preferably, one end of the enclosure baffle is connected to the water collecting box, and the other end is also connected to the water collecting box with a lower baffle, that is, the enclosure baffle, the lower baffle, the water collecting box and the slot plate form a sewage discharge area at one side end of the heat exchange plate.

[0010] Preferably, the outer wall of the heat dissipation pipe is provided with a row of annular heat dissipation ring fins, and the top of the water collecting box is provided with a row of square heat dissipation plates;

[0011] Preferably, the enclosure baffles may be installed with extended baffles at both ends of the heat exchange plates, and the extended baffles may be docked with the enclosure baffles of the next group of heat exchange plates to fill the interval space.

[0012] Preferably, the bottoms of the hollow heat-conducting tubes are connected to a transverse conduit buried in the flat soil layer, a main drainage pipe is installed on one side of the transverse conduit, and a secondary drainage pipe is connected to the main drainage pipe at the lower end of one side of the water tank.

[0013] Preferably, solenoid valve 2 is installed on the auxiliary drain pipe and the main drain pipe, and the solenoid valve 2 of the auxiliary drain pipe is electrically connected to the liquid level meter on the top of the water tank.

[0014] Preferably, both ends of the horizontal water pipe are sealed and installed with flanges, the flanges are used to connect the reinforced connecting pipes between the two groups of horizontal water pipes, and the reinforced connecting pipes are used to connect adjacent horizontal water pipes to increase stability.

[0015] Preferably, photovoltaic panels and batteries are installed on the top surface of the flat soil layer through a bracket, and the photovoltaic panels and batteries are electrically connected through related conversion structures such as inverters. The water pump is protected under the photovoltaic panels, and the battery is electrically connected to the water pump, solenoid valve 2 and solenoid valve 1.

[0016] Preferably, the top surface of the hollow heat-conducting pipe is designed to be open, while the bottom surface of the heat-dissipating pipe is designed to be closed, and the outlet of the water-adding pipe on the hollow heat-conducting pipe is located above the outlet of the water distribution pipe of the water pump.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention can perform heat exchange operations on the surface and underground simultaneously through the heat exchange plate and its related structural design, effectively absorbing and dispersing the heat in the frozen soil roadbed, which helps to slow down or prevent thermal damage problems such as frozen soil melting and roadbed settlement caused by rising temperatures.

[0019] 2. The present invention realizes the resource utilization of rainwater by adding an ingenious rainwater collection and water replenishment mechanism, effective rainwater management and filtration measures, and enhanced heat exchange efficiency to the heat exchange plate and its related structures. It also improves the stability and operation and maintenance efficiency of the system, protects the slope from being eroded by rainwater, and avoids too much water entering and bringing in a large amount of heat, and also plays a role in preventing and controlling heat damage.

[0020] 3. In the drainage design of the present invention, it is sufficient to open the solenoid valve 1 in the water collecting box, and the water in the hollow heat-conducting tube can be discharged through the connected horizontal duct by opening the solenoid valve 2 of the main drainage pipe. When it rains for too long, resulting in too much water in the water box, the liquid level sensor senses that the water level has reached the limit, opens the solenoid valve 2 of the auxiliary drainage pipe, and the water enters the main drainage pipe from the auxiliary drainage pipe and is discharged. The main drainage pipe can discharge the water into a river or other larger collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 The present invention is a whole three-dimensional thermal damage prevention system for frozen soil roadbed Figure 1 ;

[0023] Figure 2 The present invention is a whole three-dimensional thermal damage prevention system for frozen soil roadbed Figure 2 ;

[0024] Figure 3 A heat exchange plate and related components of a heat damage prevention and control system for frozen soil roadbed according to the present invention are provided. Figure 1 ;

[0025] Figure 4 A heat exchange plate and related components of a heat damage prevention and control system for frozen soil roadbed according to the present invention are provided. Figure 2 ;

[0026] Figure 5 A three-dimensional diagram of a heat exchange plate of a thermal damage prevention and control system for frozen soil roadbed according to the present invention;

[0027] Figure 6 A three-dimensional diagram of a protective baffle of a thermal damage prevention and control system for frozen soil roadbed according to the present invention;

[0028] Figure 7 The invention provides a thermal damage prevention and control system for frozen soil roadbed Figure 1A in the enlarged view;

[0029] Figure 8 A partial stereoscopic diagram of a thermal damage prevention and control system for frozen soil roadbed according to the present invention;

[0030] Fig. 9 The present invention is a front view of a heat exchange plate of a thermal damage prevention and control system for frozen soil roadbed.

[0031] In the figure:

[0032] 1. Main body of roadbed; 11. Flat soil layer; 12. Photovoltaic panel; 13. Battery; 2. Heat exchange plate; 21. Water collecting box; 22. Enclosure baffle; 23. Mesh surface; 24. Horizontal water pipe; 25. Water pump; 26. Hollow heat pipe; 27. Heat dissipation pipe; 28. Water supply pipe; 29. ​​Solenoid valve 1; 210. Heat dissipation ring; 211. Heat dissipation plate; 212. Liquid level gauge; 213. Horizontal guide tube; 214. Main drainage pipe; 215. Auxiliary drainage pipe; 216. Solenoid valve 2; 217. Slot plate; 218. Water box; 219. Extended baffle; 220. Upper baffle; 221. Lower baffle; 222. Flange. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0034] like Figure 1-Figure 9 As shown, a heat damage prevention and control system for frozen soil roadbed of the present invention comprises: a roadbed body 1, wherein both sides of the roadbed body 1 are connected to a flat soil layer 11 through a slope, and a corrosion-resistant heat exchange plate 2 is attached to the side slope of the roadbed body 1, and a small section of the bottom surface of the heat exchange plate 2 is flat (note that only the bottom surface of this small section is flat, and the top surface is slightly inclined, see Fig. 9, it is convenient to guide the water to the opening of the water collecting box 21), and the asphalt or other types of paving that fits the surface of the roadbed body 1, a row of inclined water collecting boxes 21 are installed on the surface of the heat exchange plate 2, the upper opening of the water collecting box 21 is provided with a mesh surface 23 for filtering, and the bottom ends of all water collecting boxes 21 are connected to the horizontal water pipe 24 through a conduit, and the horizontal water pipe 24 is connected to the large-capacity water box 218 buried in the flat soil layer 11. A condenser can be installed inside the water box 218, which is an existing design method. The upper side surfaces of the adjacent water collecting boxes 21 are butted with an upper baffle plate 220, and a protective baffle plate 22 is installed on the top of the heat exchange plate 2. One end of the protective baffle plate 22 is butted with a water collecting box 21 at one end, and the inner wall of the protective baffle plate 22 is butted with another water collecting box 21 at the other end through a slot plate 217. A water inlet is provided at a position of the protective baffle plate 22 near the butted water collecting box 21, that is, the slot plate 217, the upper baffle plate 220 and the protective baffle plate 22 are matched with the top surface of the water collecting box 21 in the heat exchange The horizontal end of the top of the plate 2 forms an interval, and the surface of the interval is slightly inclined to facilitate the water to be guided into the upper opening of the water collecting box 21. After entering from the water inlet of the enclosure baffle 22, the water can only enter the upper opening of the water collecting box 21, and then enter the horizontal water pipe 24. The water box 218 is connected to the water pump 25 installed on the top surface of the flat soil layer 11 through the valve pipe. The water pump 25 is connected to the hollow heat pipe 26 through the water distribution pipe. The lower end of the hollow heat pipe 26 is buried in the flat soil layer 11, and the top end is connected to the heat dissipation through bolts. Tube 27, a hollow heat-conducting pipe 26 is installed with a water-adding pipe 28 penetrating into the slope of the roadbed main body 1 on the side wall, and the other end of the water-adding pipe 28 passes through the enclosure baffle 22, and is located in an interval formed by the slot plate 217, the upper baffle 220 and the enclosure baffle 22 and the water collecting box 21 at the horizontal end of the top of the heat exchange plate 2. A solenoid valve 29 is installed on the pipeline connecting the horizontal water pipe 24 to the water tank 218. Note that there is a one-way valve at the outlet end of the water-adding pipe 28, which can only discharge water but not enter water.

[0035] Through the heat exchange plate 2 and its related structural design, before the start of work, a certain amount of water is pre-filled into the large-capacity water tank 218. When the system starts working, the solenoid valve 29 is closed to ensure that the water will not directly flow back to the water tank 218 through the horizontal water pipe 24. The water pump 25 is started to extract water from the water tank 218 through the valve pipe and introduce it into the hollow heat pipe 26. The lower end of the hollow heat pipe 26 is buried in the flat soil layer 11. This part of the pipeline can absorb the heat from the ground with cold water. Through the circulation of water, the heat is transferred to the water and continuously moves upward through the hollow heat pipe 26. It is absorbed and dissipated by the heat pipe 27. When the hollow heat pipe 26 at the edge is filled with water, the water pump 25 continues to start. , the excess water is guided to a specific area on the top of the heat exchange plate 2 through the water supply pipe 28, that is, the interval formed by the slot plate 217, the upper baffle 220, the enclosure baffle 22 and the water collecting box 21. In this interval, a small amount of water may be discharged from the opening, but the inclined surface design of the interval makes most of the water enter the water collecting box 21 and the horizontal water pipe 24. Since the solenoid valve 29 is closed, the water will not flow back to the water tank 218, but remain in the water collecting box 21, and heat is exchanged with the surface environment through the heat exchange plate 2. The heat is transferred to the water and then dissipated by the water collecting box 21, further enhancing the heat exchange effect. Through the above process, the system can perform heat exchange operations on the surface and underground at the same time, effectively absorbing and dispersing the heat in the frozen soil roadbed. The heat of the roadbed 21 can be used to slow down or prevent heat damage such as thawing of frozen soil and subsidence of roadbed caused by temperature rise. When it rains, open the solenoid valve 29, and water can enter the water box 218. Then, after the rainwater flows from the roadbed body 1 to the horizontal end of the heat exchange plate 2, it can only enter the interval formed by the card slot plate 217, the upper baffle 220, the baffle 22 and the water collection box 21 from its opening due to the obstruction of the baffle 22, and then enter the upper end opening of the water collection box 21 through the filtration of the mesh surface 23 and return to the water box 21 for collection. It should be noted that when the water enters, the water caused by rain does not flow fast, so a certain amount of debris and sand will accumulate on a mesh surface 23 before the water slowly flows to the next water collection box 2. 1 inlet flows, so rainwater can be collected to avoid the impact of rainwater scouring and deposition on the slope, and to avoid water loss caused by evaporation of the water collection box 21. Through clever rainwater collection and water replenishment mechanism, effective rainwater management and filtration measures and enhanced heat exchange efficiency, rainwater can be extracted and used at any time when the road surface is cleaned. This system not only realizes the resource utilization of rainwater, but also improves the stability and operation and maintenance efficiency of the system. After the rain stops, the solenoid valve 29 can be closed again to guide water to the water collection box 21 again. Note that the mesh surface 23 should be cleaned before guiding the water. In this process, the hollow heat pipe 26 is not affected, the internal water volume remains unchanged, and the roadbed body 1 is symmetrically designed on both sides. It is convenient to show in the figure, and only one side is shown.

[0036] A lower baffle 221 is butt-jointed on the lower end side surface between adjacent water collecting boxes 21, and a drain port is provided on the lower baffle 221, in which a filter screen can be installed. One end of the enclosing baffle 22 is connected to the water collecting box 21, and the other end is also butt-jointed with the water collecting box 21 by the lower baffle 221, that is, the enclosing baffle 22, the lower baffle 221, the water collecting box 21 and the slot plate 217 form a sewage discharge interval at one side end of the heat exchange plate 2.

[0037] Through the above structural design, water falling on the top surface of the heat exchange plate 2 is discharged through the opening of the lower baffle plate 221, and a filter screen can be installed for filtration. After the rain stops, the mesh surface 23 needs to be cleaned before replenishing water to the water collecting box 21. At this time, the slot plate 217 is removed, and the water pump 25 is started. The excess water in a hollow heat conduction pipe 26 is guided to the top of the heat exchange plate 2 through the water adding pipe 28, and the output intensity of the water pump 25 is increased. Compared with the flow of rainwater, the mesh surface 23 can be flushed, and the flow rate is faster. Most of the water can not enter the water collecting box 21 but drive the mud and sand impurities to flow forward. Since there is no slot plate 217 to block it, it can flow away from this opening and then be discharged from the drain port of the lower baffle plate 221 between the protective baffle plate 22 and the water collecting box 21. The filter screen at the drain port will filter the mud and sand impurities in a concentrated manner. After a period of time, the water pump 25 horsepower is reduced to facilitate replenishing water to the water collecting box 21, thereby realizing automatic cleaning processing.

[0038] A row of annular heat dissipation ring sheets 210 are provided on the outer wall of the heat dissipation pipe 27, and a row of square heat dissipation plates 211 are provided on the top of the water collecting box 21. It should be noted that the top surface of the hollow heat-conducting pipe 26 is an open design, while the bottom surface of the heat-conducting pipe 27 is a closed design. The outlet of the water-adding pipe 28 on the hollow heat-conducting pipe 26 is located above the outlet of the water distribution pipe of the water pump 25.

[0039] Through the above structural design, the heat dissipation ring 210 and the heat dissipation plate 211 strengthen the heat dissipation effect of the heat dissipation pipe 27 and the water collecting box 21. The mouth of the water filling pipe 28 is located above the outlet of the water distribution pipe of the water pump 25, which can ensure that the hollow heat conduction pipe 26 is filled with water and then discharged into the water channel water collecting box 21, which is very convenient.

[0040] Extended baffles 219 can be installed at both ends of the heat exchange plate 2. The extended baffles 219 can be connected with the protective baffles 22 of the next group of heat exchange plates 2 to fill the gap. The bottom surface of the extended baffle 219 contacts the paving surface on the roadbed body 1.

[0041] As mentioned above, there is a spacing between the two groups of heat exchange plates 2, and extended baffles 219 are installed at both ends of the protective baffle 22 to strengthen protection and fill the interval space to further ensure that the flowing water enters the water collecting box 21. The length of the extended baffle 219 is adjusted according to actual needs and is not specifically limited here.

[0042] The bottom of the hollow heat pipe 26 is connected to a horizontal conduit 213 buried in the flat soil layer 11, and a main drainage pipe 214 is installed on one side of the horizontal conduit 213. A secondary drainage pipe 215 is connected to the main drainage pipe 214 at the lower end of one side of the water tank 218. Solenoid valve 216 is installed on the secondary drainage pipe 215 and the main drainage pipe 214, and the solenoid valve 216 of the secondary drainage pipe 215 is electrically connected to the liquid level sensor 212 on the top of the water tank 218.

[0043] When the weather turns cold, the water in the water collecting box 21 and the hollow heat pipe 26 needs to be drained. Just open the solenoid valve 29 in the water collecting box 21, and the water in the hollow heat pipe 26 opens the solenoid valve 216 of the main drain pipe 214 and is drained through the connected horizontal conduit 213. When it rains for too long, resulting in too much water in the water box 218, the liquid level sensor 212 senses that the water level has reached the limit, opens the solenoid valve 216 of the auxiliary drain pipe 215, and the water enters the main drain pipe 214 from the auxiliary drain pipe 215 and is drained. The main drain pipe 214 can drain the water to a river or other larger collection device, which will not be elaborated here.

[0044] Both ends of the horizontal water pipe 24 are sealed and installed with flanges 222. The flanges 222 are used to connect the reinforced connecting pipes between the two groups of horizontal water pipes 24. The reinforced connecting pipes are used to connect adjacent horizontal water pipes 24 to increase stability.

[0045] Photovoltaic panels 12 and batteries 13 are installed on the top surface of the flat soil layer 11 through brackets. The photovoltaic panels 12 and batteries 13 are electrically connected through inverters and other related conversion structures. The water pump 25 is protected under the photovoltaic panels 12, and the battery 13 is electrically connected to the water pump 25, the solenoid valve 216 and the solenoid valve 1 29. The photovoltaic panels 12 and batteries 13 are designed to power some electrical equipment, avoiding the problem of too much trouble in pulling wires in the suburbs.

[0046] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A thermal damage prevention and control system for frozen soil roadbed, characterized in that: include: A roadbed body (1), wherein two sides of the roadbed body (1) are connected to a flat soil layer (11) via a slope, and a corrosion-resistant heat exchange plate (2) is attached to the slope of the roadbed body (1); A row of inclined water collecting boxes (21) are installed on the surface of the heat exchange plate (2), the upper opening of the water collecting box (21) is provided with a mesh surface (23) for filtering, and the bottom ends of all the water collecting boxes (21) are connected to the horizontal water pipe (24) through a conduit, and the horizontal water pipe (24) is connected to the water tank (218) buried in the flat soil layer (11), and the upper side surfaces of the adjacent water collecting boxes (21) are connected to the upper baffle plate (220), and the top of the heat exchange plate (2) is installed with a protective baffle plate (22), one end of the protective baffle plate (22) is connected to a water collecting box (21), and the inner wall of the protective baffle plate (22) is connected to another water collecting box (21) at the other end through a slot plate (217); A water inlet is provided at a position of the enclosure baffle (22) near the docking water collecting box (21); the water tank (218) is docked with a water pump (25) installed on the top surface of the flat soil layer (11) through a valve pipe; the water pump (25) is docked with the upper end of a row of hollow heat-conducting pipes (26) through a water distribution pipe; the lower end of the hollow heat-conducting pipe (26) is buried in the flat soil layer (11), and the top end is docked with a heat dissipation pipe (27) through bolts; a water supply pipe (28) is installed on the side wall of one of the hollow heat-conducting pipes (26) and penetrates into the slope of the roadbed body (1); a solenoid valve (29) is installed on the pipeline of the horizontal water pipe (24) connected to the water tank (218); and the other end of the water supply pipe (28) passes through the enclosure baffle (22).

2. A thermal damage prevention and control system for frozen soil roadbed according to claim 1, characterized in that: A lower baffle (221) is butt-jointed on the lower end side surfaces of adjacent water collecting boxes (21), and a drainage port is provided on the lower baffle (221), in which a filter screen can be installed.

3. A thermal damage prevention and control system for frozen soil roadbed according to claim 2, characterized in that: One end of the enclosure baffle (22) is connected to the water collecting box (21), and the other end is also connected to the water collecting box (21) via a lower baffle (221), that is, the enclosure baffle (22), the lower baffle (221), the water collecting box (21) and the slot plate (217) form a sewage discharge area at one side end of the heat exchange plate (2).

4. A thermal damage prevention and control system for frozen soil roadbed according to claim 3, characterized in that: The outer wall of the heat dissipation pipe (27) is provided with a row of annular heat dissipation ring fins (210), and the top of the water collecting box (21) is provided with a row of square heat dissipation plate fins (211).

5. A thermal damage prevention and control system for frozen soil roadbed according to claim 4, characterized in that: The enclosure baffle (22) can be installed with extended baffles (219) at both ends of the heat exchange plate (2). The extended baffle (219) can be connected to the enclosure baffle (22) of the next group of heat exchange plates (2) to fill the gap.

6. A thermal damage prevention and control system for frozen soil roadbed according to claim 5, characterized in that: The bottom of the hollow heat-conducting pipe (26) is connected to a transverse pipe (213) buried in the flat soil layer (11); a main drainage pipe (214) is installed on one side of the transverse pipe (213); and a secondary drainage pipe (215) is connected to the main drainage pipe (214) at the lower end of one side of the water tank (218).

7. A thermal damage prevention and control system for frozen soil roadbed according to claim 6, characterized in that: The secondary drainage pipe (215) and the main drainage pipe (214) are equipped with a second solenoid valve (216), and the second solenoid valve (216) of the secondary drainage pipe (215) is electrically connected to the liquid level meter (212) at the top of the water tank (218).

8. A thermal damage prevention and control system for frozen soil roadbed according to claim 7, characterized in that: Both ends of the horizontal water pipe (24) are sealed and installed with flanges (222), and the flanges (222) are used to connect the reinforced connecting pipes between the two groups of horizontal water pipes (24), and the reinforced connecting pipes are used to connect adjacent horizontal water pipes (24).

9. A thermal damage prevention and control system for frozen soil roadbed according to claim 1, characterized in that: The photovoltaic panel (12) and the storage battery (13) are installed on the top surface of the flat soil layer (11) through a bracket. The photovoltaic panel (12) and the storage battery (13) are electrically connected through an inverter and other related conversion structures. The water pump (25) is protected below the photovoltaic panel (12), and the storage battery (13) is electrically connected to the water pump (25), the second solenoid valve (216) and the first solenoid valve (29).

10. A thermal damage prevention and control system for frozen soil roadbed according to claim 6, characterized in that: The top surface of the hollow heat-conducting pipe (26) is designed to be open, and the bottom surface of the heat-dissipating pipe (27) is designed to be closed. The outlet of the water-adding pipe (28) on the hollow heat-conducting pipe (26) is located above the outlet of the water distribution pipe of the water pump (25).

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