Railway sandstorm protection system

Abstract

The present application relates to a railway wind-sand protection system, which is used between the windward side of railway and the leeward side of sand dune, and comprises a sand-sealing and grass-growing belt, a mixed sand-fixing belt, a sand-blocking belt, a water diversion channel and a sand flushing channel. The sand-sealing and grass-growing belt, the mixed sand-fixing belt and the sand-blocking belt are arranged in the first direction in sequence, the sand-sealing and grass-growing belt is located on the side of the mixed sand-fixing belt close to the railway, and the sand-blocking belt is located on the side of the mixed sand-fixing belt close to the sand dune. The water diversion channel and the sand flushing channel are arranged on one side of the sand-blocking belt in the second direction. The water diversion channel is provided with a first outlet and a second outlet, the first outlet is used for guiding water to the sand-blocking belt, and the second outlet is communicated with the sand flushing channel. The present application can improve the sand-blocking and sand-fixing effect and provide a good operating environment for the railway.

Description

Technical Field

[0001] This utility model relates to the field of environmental governance, and more specifically, to a railway wind and sand protection system. Background Technology

[0002] In railway construction and operation, wind and sand disasters pose a severe challenge, especially in high-altitude and arid regions, where their impact on railway safety and transportation efficiency is significant. To address this, researchers have implemented a series of sand control measures along railway lines, including vegetation protection and engineering solutions, effectively reducing the impact of wind and sand on railways. However, in high-altitude river valleys, wind and sand issues have not received sufficient attention and research, particularly at the confluence of plateaus and river valleys, where the characteristics and coping strategies for wind and sand disasters still require in-depth exploration. Some railway construction projects have overcome extreme challenges from high altitudes, high mountains, and frigid environments, greatly promoting economic and social development. During railway construction, innovation and application of engineering technologies have provided strong guarantees for ensuring stable railway operation and reducing the risk of natural disasters. However, as construction progresses, sand hazards along railway lines have gradually become apparent. When traversing wide river valleys, sandy areas, and arid regions, wind and sand erosion puts considerable pressure on railway facilities. Strong winds and sandstorms have become a significant factor affecting the safe operation of railways, and severe sand hazards have occurred in this section. Therefore, the current work on wind and sand protection for railways remains under pressure, and further research is urgently needed through comprehensive sand prevention technologies and measures to ensure the long-term safe operation of railways.

[0003] The inventors discovered in their research that existing wind and sand protection systems for railways in river areas have at least the following drawbacks:

[0004] The sand-blocking and stabilizing effect is poor, affecting the normal use of the railway. Utility Model Content

[0005] The purpose of this utility model includes, for example, providing a railway wind and sand protection system that can improve the effect of sand blocking and stabilization, and provide a good operating environment for railways.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] Firstly, this utility model provides a railway wind and sand protection system for construction between the windward side of the railway and the leeward side of the sand dunes, comprising a sand-fixing and grass-cultivating belt, a mixed sand-stabilizing belt, a sand-blocking belt, an irrigation canal, and a sand-flushing canal, wherein:

[0008] The sand-fixing and grass-cultivating belt, the mixed sand-fixing belt, and the sand-blocking belt are arranged sequentially in the first direction. The sand-fixing and grass-cultivating belt is located on the side of the mixed sand-fixing belt closer to the railway, and the sand-blocking belt is located on the side of the mixed sand-fixing belt closer to the sand dune.

[0009] The water diversion channel and the sand flushing channel are located on one side of the sand-blocking belt in the second direction. The water diversion channel is provided with a first outlet and a second outlet. The first outlet is used to guide water to the sand-blocking belt. The second outlet is connected to the sand flushing channel.

[0010] In an optional embodiment, the mixed sand-fixing strip includes sand-fixing grids and sand-fixing plants. The sand-fixing grids are used to fix the sand to the ground surface, the sand-fixing grids enclose a planting area, and the sand-fixing plants are planted in the planting area.

[0011] In an optional embodiment, the sand-fixing grid includes multiple fixed piles and multiple sand-fixing nets. One end of each of the multiple fixed piles is used to insert into the stratum. The multiple fixed piles are arranged in a ring. In the arrangement direction of the multiple fixed piles, a sand-fixing net is fixed between adjacent fixed piles. The bottom of the sand-fixing net is in contact with the ground surface.

[0012] In an optional embodiment, the fixing pile includes a plug and a mounting post, one end of the plug is configured as a pointed tip, the other end of the plug is rotatably connected to the mounting post, and the plug and the mounting post are fixed relative to each other in the axial direction of the mounting post; the outer peripheral surface of the mounting post is provided with an assembly groove extending in its length direction.

[0013] The sand-fixing net includes a net body and two positioning rods. The two positioning rods are connected to the net body and are located on opposite sides of the net body. The two positioning rods are respectively inserted into the two mounting grooves of two adjacent mounting columns.

[0014] In an optional embodiment, the cross-sectional profile of the mounting groove is T-shaped, arc-shaped, or dovetail-shaped.

[0015] In an optional embodiment, the sand-blocking strip includes a plurality of sand-blocking fences, which are spaced apart in the first direction.

[0016] In an optional embodiment, the sand-blocking fence includes multiple sand-blocking posts and multiple sand-blocking nets. The multiple sand-blocking posts are arranged at intervals in the second direction, and a sand-blocking net is installed between adjacent sand-blocking posts. Adjacent sand-blocking posts are reinforced by ropes.

[0017] In an optional embodiment, a first gate and a second gate are installed on the water diversion channel. The first gate is used to control the opening and closing of the first outlet, and the second gate is used to control the opening and closing of the second outlet.

[0018] In an optional embodiment, the side of the sand-blocking strip in the second direction is connected to the corresponding sand-flushing channel.

[0019] In an optional embodiment, the railway sandstorm protection system further includes a combined sand barrier and a sand-fixing barrier, which is disposed on the side of the sand-blocking belt away from the mixed sand-fixing belt.

[0020] The beneficial effects of this utility model embodiment include, for example:

[0021] In summary, the railway wind and sand protection system provided in this embodiment, on the windward side of the railway (the side facing the main wind hazard), constructs a comprehensive protection system integrating sand dune slope erosion prevention, sand blocking, sand fixation, and sand flushing through the coordinated use of multiple components, including sand-blocking belts, mixed sand-fixing belts, sand-sealing and grass-cultivating belts, water diversion channels, and sand flushing channels. This fills a gap in the research on wind and sand control along river valley railways, broadens the research field of wind and sand control, and provides theoretical basis and technical reserves for railway wind and sand control. Furthermore, this protection system adheres to the principles of adapting to local conditions and designing defenses according to the specific hazards, utilizing sand barriers combined with sand fixation on one side of the dune to increase the roughness of the underlying surface, significantly reducing near-surface wind speed and stabilizing the shifting sand surface. The combination of sand-blocking belts, water diversion channels, sand flushing channels, mixed sand-fixing belts, and sand-sealing and grass-cultivating belts has blocked the path of wind-blown sand, stabilized the sand surface, reduced the harm of wind-blown sand, and improved the ecological environment along the railway line. The method of diverting water to flush sand reduces the deposition of sand and the resulting secondary sand damage, and the introduction of water sources provides a guarantee for plant sand fixation.

[0022] Furthermore, the sand barriers and grid-like sand-blocking strips utilize PE mesh, which possesses strong tensile strength, corrosion resistance, and UV resistance, enabling it to withstand harsh environmental conditions such as low temperatures, strong ultraviolet radiation, and strong winds in high-altitude and cold regions. Its protective lifespan is approximately 5-10 years. Crucially, it is convenient to construct and transport along the railway line, allowing for quick and easy operation and mobility. After the protective system is established, the active sand surface is stabilized, improving the soil's physical and chemical properties and promoting the restoration and growth of natural vegetation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the railway wind and sand protection system in this embodiment;

[0025] Figure 2 This is a schematic diagram of the sand-fixing grid in this embodiment;

[0026] Figure 3 This is a schematic diagram of the sand-fixing piles and sand-fixing nets in this embodiment;

[0027] Figure 4 This is a schematic diagram of the sand-fixing pile in this embodiment.

[0028] icon:

[0029] 001-Railway; 002-Sand dune; 003-First direction; 004-Second direction; 100-Sand-fixing and grass-cultivating belt; 200-Mixed sand-fixing belt; 210-Sand-fixing grid; 211-Fixing pile; 2111-Plug-in connector; 2112-Installation column; 2113-Assembly groove; 212-Sand-fixing net; 2121-Net body; 2122-Positioning rod; 220-Sand-fixing plant; 300-Sand-blocking belt; 400-Irrigation canal; 410-First gate; 420-Second gate; 500-Sand flushing canal; 600-Combined sand-blocking and sand-fixing barrier. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0035] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0036] In existing technologies, to mitigate sand damage along railway lines, especially in river areas, the primary approach is generally to plant vegetation on both sides of the railway line to create vegetated areas, thereby achieving sand control and stabilization. However, relying solely on vegetation for sand control is limited in its effectiveness and lacks a comprehensive solution.

[0037] In view of this, the designers have provided a railway wind and sand protection system that can improve the effect of sand blocking and stabilization, and the protection effect of railway 001 is good.

[0038] Please refer to Figures 1-4 This embodiment provides a railway wind and sand protection system for construction between the windward side of railway 001 and the leeward side of sand dune 002. It includes a sand-fixing and grass-cultivating belt 100, a mixed sand-fixing belt 200, a sand-blocking belt 300, an irrigation canal 400, and a sand-flushing canal 500, wherein:

[0039] The sand-fixing and grass-cultivating belt 100, the mixed sand-fixing belt 200, and the sand-blocking belt 300 are arranged in sequence in the first direction 003. The sand-fixing and grass-cultivating belt 100 is located on the side of the mixed sand-fixing belt 200 that is closer to the railway 001, and the sand-blocking belt 300 is located on the side of the mixed sand-fixing belt 200 that is closer to the sand dune 002.

[0040] The water diversion channel 400 and the sand flushing channel 500 are located on one side of the sand-blocking belt 300 in the second direction 004. The water diversion channel 400 is provided with a first outlet and a second outlet. The first outlet is used to guide water to the sand-blocking belt 300. The second outlet is connected to the sand flushing channel 500.

[0041] As described above, the protection principle of the railway wind and sand protection system provided in this embodiment is as follows:

[0042] The protective system was installed on the side facing the main wind direction of railway 001. Through the coordinated construction of multiple components—a sand-blocking strip 300, a mixed sand-fixing strip 200, a sand-sealing and grass-cultivating strip 100, a water diversion channel 400, and a sand-flushing channel 500—a comprehensive protective system integrating slope erosion control, sand blocking, sand fixation, and sand flushing for dune 002 was established. This fills a gap in research on wind and sand control for railway 001 in the river valley, broadens the research field, and provides theoretical basis and technical reserves for wind and sand control along railway 001. Simultaneously, adhering to the principles of adapting to local conditions and designing defenses according to the specific hazards, the system utilizes a combined sand-blocking and sand-fixing barrier 600 located on one side of dune 002 to increase the surface roughness, significantly reducing near-surface wind speed and stabilizing the shifting sand surface. The combination of a 300-meter sand-blocking belt, a 400-meter water diversion channel, a 500-meter sand flushing channel, a 200-meter mixed sand-fixing belt, and a 100-meter sand-sealing and grass-cultivating belt effectively blocked the path of wind-blown sand, stabilized the sand surface, reduced the harm caused by wind-blown sand, and improved the ecological environment along the railway 001 line. The method of diverting water to flush sand reduced the secondary sand damage caused by sand deposition, and the introduction of water sources provided a guarantee for plant sand fixation.

[0043] It should be understood that the protection system is mainly built on the windward side of railway 001 and can be built next to a river to facilitate the introduction of river water into the irrigation canal 400. Obviously, in other embodiments, the protection system can also be set on both sides of railway 001, or water can be stored in a water storage container and discharged into the irrigation canal 400 when needed.

[0044] The following embodiments illustrate the details of the railway sandstorm protection system of this application by way of example.

[0045] Please refer to Figures 1-4In this embodiment, optionally, the railway sandstorm protection system includes a sand-fixing and grass-cultivating belt 100, a mixed sand-fixing belt 200, a sand-blocking belt 300, an irrigation canal 400, a sand-flushing canal 500, and a combined sand-blocking and sand-barrier 600. The sand-fixing and grass-cultivating belt 100, the mixed sand-fixing belt 200, the sand-blocking belt 300, and the combined sand-blocking and sand-barrier 600 are arranged sequentially in the first direction 003, with the sand-fixing and grass-cultivating belt 100 closest to the railway 001 and the combined sand-blocking and sand-barrier 600 furthest from the railway 001. The irrigation canal 400 and the sand-flushing canal 500 are arranged in pairs, and the protection system includes two pairs of irrigation canals 400 and sand-flushing canals 500, which are respectively distributed on both sides of the sand-fixing belt in the second direction 004. Meanwhile, the flushing channel 500 is located inside the corresponding water diversion channel 400, that is, the flushing channel 500 is located on the side of the corresponding water diversion channel 400 closer to the sand-fixing zone. Both the water diversion channel 400 and the flushing channel 500 extend in the first direction 003, wherein the first direction 003 is perpendicular to the second direction 004. One end of the water diversion channel 400 can be connected to the river, and the water diversion channel 400 can pass under the railway 001. The other end is provided with a first outlet and a second outlet. The first outlet is used to guide water to the sand-fixing zone 300, and the second outlet is connected to one end of the corresponding flushing channel 500. The other end of the flushing channel 500 turns back and can be connected to the river, and the flushing channel 500 can pass under the railway 001. The sediment deposited in the flushing channel 500 can be flushed back into the river by the water introduced by the water diversion channel 400. In practical applications, water from the river can be diverted into the irrigation canal 400. The first outlet can be opened periodically or as needed, allowing water in the irrigation canal 400 to enter the sand-blocking belt 300, thereby clearing the accumulated sand in the sand-blocking belt 300. Furthermore, both sides of the sand-blocking belt 300 in the second direction 004 can be connected to the sand flushing channel 500. The sand blocked by the sand-blocking belt 300 can enter the sand flushing channel 500 under the water flow. With the opening of the second outlet, water in the irrigation canal 400 enters the sand flushing channel 500, carrying the sediment into the river through the sand flushing channel 500.

[0046] It should be understood that drip irrigation pipes can be installed in the areas where the sand-fixing and grass-cultivating belt 100 and the mixed sand-fixing belt 200 are located. The drip irrigation pipes can draw water from the river or irrigation canal 400 to drip irrigate the plants and promote the growth of the sand-fixing plants 220.

[0047] In this embodiment, optionally, to facilitate control of the water release time, a first gate 410 and a second gate 420 can be installed in the water diversion channel 400. The first gate 410 is used to control the opening and closing of the first outlet, and the second gate 420 is used to control the opening and closing of the second outlet. The first gate 410 and the second gate 420 are designed independently and do not interfere with each other. They can be opened simultaneously or one of them can be opened selectively. The first gate 410 and the second gate 420 can be driven by a winch. When it is necessary to open the first outlet or the second outlet, the winch starts to pull the first gate 410 or the second gate 420 up. When it is necessary to close the first outlet or the second outlet, the first gate 410 and the second gate 420 are lowered, and the blockage is achieved by gravity. Obviously, in other embodiments, the structure and control method of the first gate 410 and the second gate 420 can be selected as needed, and this embodiment does not exhaustively list them.

[0048] Optionally, in the early stage of the sand-sealing and grass-cultivation belt 100, psammophytic plants are cultivated to enhance artificial ecological restoration and restore vegetation; in the later stage, the belt can be gradually opened according to the actual situation, and production activities such as grazing and grass cutting can be carried out appropriately.

[0049] Please refer to Figures 2-4 Optionally, the mixed sand-fixing strip 200 includes sand-fixing grids 210 and sand-fixing plants 220. The sand-fixing grids 210 are used to fix the soil surface, enclosing a planting area, and the sand-fixing plants 220 are planted within the planting area. The sand-fixing grids 210 can be grass grids, stone grids, PE mesh grids, etc. The size of the sand-fixing grids 210 can be 1m × 1m, etc.

[0050] Furthermore, the sand-fixing grid 210 includes multiple fixed piles 211 and multiple sand-fixing nets 212. One end of each fixed pile 211 is inserted into the ground. The fixed piles 211 are arranged in a ring. A sand-fixing net 212 is fixed between adjacent fixed piles 211, with the bottom of the sand-fixing net 212 adhering to the ground surface. It should be understood that the multiple fixed piles 211 can be driven as needed. For example, a grid structure can be formed on the ground surface using lime or marking lines, with multiple grids covering an area of ​​1m × 1m. Piles can be driven at the nodes of each grid, with a pile depth controlled at 20-30cm and a height protruding from the ground surface of approximately 25cm. After driving the piles, the sand-fixing nets 212 are then installed between adjacent fixed piles 211, making the operation convenient.

[0051] The fixed pile 211 includes a connector 2111 and a mounting post 2112. One end of the connector 2111 is a pointed tip, and the other end of the connector 2111 is rotatably connected to the mounting post 2112. The connector 2111 and the mounting post 2112 are relatively fixed relative to each other in the axial direction of the mounting post 2112. The outer circumferential surface of the mounting post 2112 is provided with an assembly groove 2113 extending in its length direction. The sand stabilizing net 212 includes a net body 2121 and two positioning rods 2122. Both positioning rods 2122 are connected to the net body 2121 and are located on opposite sides of the net body 2121. The two positioning rods 2122 are respectively inserted into the two assembly grooves 2113 of two adjacent mounting posts 2112. During construction, the pointed tip facilitates insertion into the ground, and part of the mounting post 2112 is also inserted into the ground. Part of the mounting groove 2113 is hidden below the ground surface. When the sand-fixing net 212 is installed in the mounting groove 2113, the lower wall of the mounting groove 2113 is less likely to interfere with the positioning rod 2122, ensuring the insertion depth of the positioning rod 2122 and allowing the bottom of the net body 2121 to fit flush with the ground surface. Simultaneously, because the mounting post 2112 can rotate relative to the connector 2111, it is easy to rotate the mounting grooves 2113 of adjacent mounting posts 2112 to face each other during use. This facilitates the insertion of the two positioning rods 2122 on the same net body 2121 into the two opposite mounting grooves 2113.

[0052] It should be understood that four mounting grooves can be provided on the outer circumference of a mounting post 2112 to position four sand-fixing nets 212. The four mounting grooves are located at the four ends of the cross, that is, the four mounting grooves are arranged in a cross shape.

[0053] In addition, once the sand-fixing grid 210 is completed, it can play a role in preventing and fixing sand. During this process, when the shifting sand surface is fixed and a stable concave surface is formed, sand-fixing plants 220, mainly native species such as sand locust, alfalfa, and tall fescue, are planted and cultivated in the planting area.

[0054] Furthermore, the cross-sectional profile of the assembly groove 2113 is T-shaped, curved, or dovetail-shaped, etc., and correspondingly, the cross-sectional profile of the positioning rod 2122 is T-shaped, curved, or dovetail-shaped, etc. With this design, when the positioning rod 2122 is inserted into the assembly groove 2113 from the top, after the positioning rod 2122 and the assembly groove 2113 are engaged, the positioning rod 2122 will not come out of the groove of the assembly groove 2113, ensuring stability and reliability.

[0055] In this embodiment, optionally, the sand-blocking strip 300 includes multiple sand-blocking fences, which are arranged at intervals along the first direction 003. The number of sand-blocking fences can be 3-5, and each sand-blocking fence can be 1.5m high and 500m long.

[0056] Optionally, the sand-blocking fence includes multiple sand-blocking posts and multiple sand-blocking nets. The sand-blocking posts are arranged at intervals in the second direction 004, and a sand-blocking net is installed between adjacent sand-blocking posts. Adjacent sand-blocking posts are reinforced with ropes. The sand-blocking posts can use concrete columns as bases, and then fixing rods are installed on the bases. The base can be buried 100cm, and the base can be a rectangular concrete column. The top, bottom, and diagonals of adjacent sand-blocking posts can be reinforced with ropes. In addition, the two sides of the sand-blocking posts can also be reinforced with 45° ropes.

[0057] Optionally, the combined sand barrier 600 can be deployed on the surface of dune 002 to slow down wind speed and effectively block the movement of shifting sand. During construction, after surveying the terrain, clear debris from the surface of dune 002. First, drive piles at 1.5m x 1.5m grids, with 3cm x 3cm x 40cm circular piles inserted 30cm below and 20cm above the ground. Wrap nylon mesh around the piles with fine wire, and then bury the bottom and sand surface. Simultaneously, according to the undulating terrain of dune 002, set up large-square PE mesh combined sand barriers 600 to effectively block the movement of flowing sand.

[0058] The railway wind and sand protection system provided in this embodiment utilizes a large-square PE mesh combined with sand barriers 600 to increase surface roughness, significantly reducing near-surface wind speed and stabilizing the shifting sand surface. The sand-blocking belt 300, water diversion channel 400, sand flushing channel 500, mixed sand-fixing belt 200, and sand-sealing and grass-cultivating belt 100 work together to block the path of wind-blown sand, stabilize the sand surface, reduce the harm caused by wind-blown sand, and improve the ecological environment along the railway 001 line. The water diversion and sand flushing method reduces secondary sand damage caused by sand deposition, and the introduction of water provides a guarantee for vegetation sand fixation.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A railway wind and sand protection system, used for construction between the windward side of a railway (001) and the leeward side of a sand dune (002), characterized in that, It includes a sand-fixing and grass-cultivating belt (100), a mixed sand-fixing belt (200), a sand-blocking belt (300), an irrigation canal (400), and a sand-flushing canal (500), among which: The sand-fixing and grass-cultivating belt (100), the mixed sand-fixing belt (200), and the sand-blocking belt (300) are arranged sequentially in the first direction (003). The sand-fixing and grass-cultivating belt (100) is located on the side of the mixed sand-fixing belt (200) closer to the railway (001), and the sand-blocking belt (300) is located on the side of the mixed sand-fixing belt (200) closer to the sand dune (002). The water diversion channel (400) and the sand flushing channel (500) are located on one side of the sand-blocking belt (300) in the second direction (004). The water diversion channel (400) is provided with a first outlet and a second outlet. The first outlet is used to guide water to the sand-blocking belt (300). The second outlet is connected to the sand flushing channel (500).

2. The railway wind and sand protection system according to claim 1, characterized in that: The mixed sand-fixing belt (200) includes sand-fixing grids (210) and sand-fixing plants (220). The sand-fixing grids (210) are used to fix the sand to the ground surface. The sand-fixing grids (210) enclose a planting area, and the sand-fixing plants (220) are planted in the planting area.

3. The railway wind and sand protection system according to claim 2, characterized in that: The sand-fixing grid (210) includes multiple fixed piles (211) and multiple sand-fixing nets (212). One end of each of the multiple fixed piles (211) is used to insert into the stratum. The multiple fixed piles (211) are arranged in a ring. In the arrangement direction of the multiple fixed piles (211), a sand-fixing net (212) is fixed between adjacent fixed piles (211). The bottom of the sand-fixing net (212) is in contact with the ground surface.

4. The railway wind and sand protection system according to claim 3, characterized in that: The fixed pile (211) includes a plug (2111) and a mounting post (2112). One end of the plug (2111) is set as a pointed tip, and the other end of the plug (2111) is rotatably connected to the mounting post (2112). The plug (2111) and the mounting post (2112) are fixed relative to each other in the axial direction of the mounting post (2112). The outer peripheral surface of the mounting post (2112) is provided with an assembly groove (2113) extending in its length direction. The sand-fixing net (212) includes a net body (2121) and two positioning rods (2122). The two positioning rods (2122) are connected to the net body (2121) and are located on opposite sides of the net body (2121). The two positioning rods (2122) are respectively inserted into the two mounting grooves (2113) of two adjacent mounting posts (2112).

5. The railway wind and sand protection system according to claim 4, characterized in that: The cross-sectional profile of the assembly groove (2113) is T-shaped, arc-shaped, or dovetail-shaped.

6. The railway wind and sand protection system according to any one of claims 1-5, characterized in that: The sand-blocking strip (300) includes a plurality of sand-blocking fences, which are arranged at intervals in the first direction (003).

7. The railway wind and sand protection system according to claim 6, characterized in that: The sand-blocking fence includes multiple sand-blocking posts and multiple sand-blocking nets. The multiple sand-blocking posts are arranged at intervals in the second direction (004), and a sand-blocking net is installed between adjacent sand-blocking posts. Adjacent sand-blocking posts are reinforced by ropes.

8. The railway wind and sand protection system according to any one of claims 1-5, characterized in that: The water diversion channel (400) is equipped with a first gate (410) and a second gate (420). The first gate (410) is used to control the opening and closing of the first outlet, and the second gate (420) is used to control the opening and closing of the second outlet.

9. The railway wind and sand protection system according to any one of claims 1-5, characterized in that: The side of the sand-blocking strip (300) in the second direction (004) is connected to the corresponding sand-flushing channel (500).

10. The railway wind and sand protection system according to any one of claims 1-5, characterized in that: The railway wind and sand protection system also includes a sand barrier (600) that is combined with sand fixation. The sand barrier (600) is located on the side of the sand-blocking belt (300) away from the mixed sand-fixing belt (200).

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