A loess hilly and gully region slope road protection structure

Abstract

The utility model discloses a loess hilly and gully region slope road protection structure, including the protection screen that lays on the road surface of slope road, the ground stake for anchoring protection screen and the gravel layer that lays on the protection screen and installs the sand prevention roadblock on the side slope of slope road, one end of ground stake is provided with the connector with internal thread, and the connector is detachably connected with the limiting sheet with external thread, and the outer surface of connector is polygonal, and one end of switchover connector has the sleeve that is suitable for polygonal shape, and the other end of switchover connector is connected with hand electric drill, and sand prevention roadblock includes sand prevention medium and sand prevention medium fixing part for bearing sand prevention medium. The utility model discloses simple structure, reasonable in design, and hand electric drill drives ground stake to spin into the soil layer, can anchor protection screen, and the construction is convenient and the small disturbance to the soil body, and sand prevention roadblock can effectively intercept and weaken the sand and dust carried by the wind of loess hilly and gully region and accumulate on the road surface of slope road, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of slope stabilization, and more specifically, to a slope road protection structure in the loess hilly and gully area. Background Technology

[0002] The slope roads in the Loess Hilly Gully region have distinct regional characteristics. The terrain is fragmented with undulating ridges and mounds, and the steep slopes and narrow slopes severely limit the working space. The regional soil is mainly composed of aeolian sand and loess. Among them, loess is relatively stable in a dry state, but it is prone to pore collapse when exposed to water, and the soil is generally loose. At the same time, this region is a key national-level water and soil erosion control area with coarse sand in the Yellow River. The average annual rainfall is concentrated and intense, and the wind has a significant impact, which further exacerbates the complexity of the slope environment.

[0003] Due to the aforementioned characteristics, large and medium-sized equipment not only struggles to access narrow slope construction sites, but the compaction caused by their own weight also severely exacerbates soil disturbance. The already loose soil, under the influence of heavy machinery, suffers damage to its pore structure, resulting in a significant decrease in stability and making it highly susceptible to new landslides and collapses. Furthermore, it may damage the integrity of existing roadbeds, leading to road structural instability, which in turn exacerbates soil erosion, creating a vicious cycle and posing significant safety hazards to engineering construction and regional ecological security.

[0004] Therefore, protective structures that are suitable for the slope environment, easy to construct, and cause minimal disturbance to the soil are needed to protect the slope roads in the Loess hilly and gully areas. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a protective structure for slope roads in the loess hilly and gully areas, which addresses the shortcomings of the prior art. The structure is simple and reasonably designed. The protective netting can be anchored by driving the ground piles into the soil layer with a hand-held electric drill. The construction is convenient and causes little disturbance to the soil. The sand-proof road barrier can effectively intercept and reduce the accumulation of sand and dust carried by the wind on the road surface in the loess hilly and gully areas, and has good performance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a protective structure for slope roads in loess hilly and gully areas, characterized in that: it includes a protective netting laid on the road surface of the slope road, ground piles for anchoring the protective netting, a layer of crushed stone laid on the protective netting, and a sand-proof road barrier installed on the slope of the slope road; one end of the ground pile is provided with a connector with internal threads, the internal threads of the connector are adapted to the connecting rod with external threads, and the top end of the connecting rod is provided with a limiting piece for limiting the mesh of the protective netting; the outer surface of the connector is polygonal, one end of the adapter has a sleeve adapted to the polygonal shape, and the other end of the adapter is connected to a hand-held electric drill; the sand-proof road barrier includes a sand-proof medium and a sand-proof medium fixing component for carrying the sand-proof medium, the sand-proof medium fixing component includes an arc rod, and an installation rod connected to both ends of the arc rod for insertion into the slope of the slope road.

[0007] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the protective mesh is formed by splicing or fixing multiple hard metal meshes to form a ring or rectangular structure, the width of the protective mesh is not greater than the width of the road surface of the slope road; the mesh size of the hard metal mesh is smaller than that of the limiting plate.

[0008] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the protective netting is formed by splicing or fixing multiple hard metal meshes and at least one flexible metal wire rope mesh to form a ring or rectangular structure, and the side of the flexible metal wire rope mesh near the slope is fixed by ground nails; the width of the protective netting is not greater than the width of the road surface of the slope road; the mesh size of both the hard metal mesh and the flexible metal wire rope mesh is smaller than that of the limiting plate.

[0009] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the ground nail includes a U-shaped rod and a washer inserted on the U-shaped rod, the washer can move along the length direction of the U-shaped rod, and the mesh size of the flexible metal wire rope mesh is smaller than that of the washer.

[0010] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: a ground insertion rod is fixedly connected to the other end of the mounting rod away from the arc rod, an mounting ring is sleeved on the mounting rod, and a support rod is provided on the mounting ring.

[0011] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: two adjacent sand-proof medium fixing parts can be detachably connected.

[0012] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized by having at least two circular arc rods.

[0013] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the sand-proof medium is made of bundled plant stalks or branches; and vine-like crops are planted below the sand-proof medium fixing components.

[0014] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the ground pile is a spiral ground pile, and the bottom of the spiral ground pile is provided with spiral blades.

[0015] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: the crushed stone layer includes a gravel layer, a coarse sand layer and a medium sand layer laid from bottom to top.

[0016] The above-mentioned slope road protection structure in the loess hilly and gully area is characterized in that: a drainage ditch is opened between two adjacent protective net panels, and a drainage pipe is buried in the drainage ditch.

[0017] This utility model has the following advantages compared with the prior art: 1. This utility model has a simple structure, reasonable design, and is convenient to implement and use.

[0018] 2. In this utility model, a handheld electric drill drives the ground pile into the soil layer to anchor the protective netting. This not only minimizes soil disturbance but also improves construction efficiency and safety. It is especially suitable for working on narrow slopes in the loess hilly and gully areas, effectively protecting the original soil's pore structure and stability.

[0019] 3. This utility model is equipped with sand-proof road barriers, which can effectively intercept and weaken the accumulation of sand and dust carried by the wind in the loess hilly and gully areas on the road surface of the slope, and avoid the reduction of road surface smoothness and friction due to sand and dust coverage, thereby ensuring the traffic efficiency of the slope road.

[0020] In summary, this utility model has a simple structure and reasonable design. A handheld electric drill can drive the ground pile into the soil layer to anchor the protective netting. The construction is convenient and causes little disturbance to the soil. The sand-proof road barrier can effectively intercept and reduce the accumulation of sand and dust carried by the wind on the road surface of the loess hilly gully area, and has a good effect.

[0021] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model.

[0023] Figure 2 This is a schematic diagram showing the connection relationship between the ground stake and the limiting plate.

[0024] Figure 3 This is a schematic diagram showing the connection relationship between the ground pile, adapter, and hand drill.

[0025] Figure 4 This is a structural schematic diagram of a sand-proof medium fixing component.

[0026] Figure 5 This is a schematic diagram of the structure of a rigid metal mesh.

[0027] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of a flexible metal wire rope mesh.

[0029] Figure 8 This is a schematic diagram of the structure of a ground nail.

[0030] In the diagram: 1. Ground stake; 11. Connector; 2. Limiting plate; 3. Adapter; 4. Handheld electric drill; 5. Protective netting; 51. Hard metal mesh; 52. Flexible metal wire rope mesh; 6. Crushed stone layer; 7. Sand-proof medium fixing component; 71. Mounting rod; 72. Arc rod; 73. Ground insertion rod; 74. Support rod; 75. Mounting ring; 8. Ground nail; 81. Washer; 82. U-shaped rod. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings and embodiments thereof.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0036] Example 1 like Figures 1 to 5 As shown, the present application discloses a slope road protection structure in the loess hilly and gully area, characterized in that it includes a protective netting 5 laid on the road surface of the slope road, ground piles 1 for anchoring the protective netting 5, a crushed stone layer 6 laid on the protective netting 5, and sand-proof road barriers installed on the slope of the slope road.

[0037] The protective netting 5 is anchored to the road surface by ground piles 1, which firmly press the protective netting 5 onto the road surface of the sloping road. On the one hand, the protective netting 5 covers and restrains the surface soil to prevent surface soil loss; on the other hand, the protective netting 5 facilitates the dispersion of the scouring force of slope runoff, reduces the formation of road surface erosion, lowers the risk of soil erosion, and protects the roadbed of the sloping road.

[0038] One end of the ground pile 1 is provided with a connector 11 with internal threads. The internal threads of the connector 11 are adapted to the connecting rod with external threads. The top end of the connecting rod is provided with a limiting piece 2 for limiting the mesh of the protective mesh 5. The outer surface of the connector 11 is polygonal. One end of the adapter 3 has a sleeve adapted to the polygonal shape. The polygonal shape of the outer surface of the connector 11 is adapted to the sleeve at one end of the adapter 3. The other end of the adapter 3 is connected to the hand-held electric drill 4.

[0039] like Figure 2 and Figure 3 As shown, the ground stake 1 has a connector 11, which can be connected to a common handheld drill 4 via a suitable adapter 3. For example, the outer surface of the connector 11 is a hexagonal prism, and one end of the adapter 3 is an internal hexagonal sleeve adapted to the hexagonal prism. The connection between the other end of the adapter 3 and the handheld drill 4 is the same as the connection between a common drill bit and the handheld drill 4. For example, the other end of the adapter 3 has a grooved hexagonal shank, and the chuck of the handheld drill 4 is detachably connected to the grooved hexagonal shank.

[0040] The ground pile 1 is connected to the handheld electric drill 4 through the conversion joint 3. The handheld electric drill 4 drives the ground pile 1 to be screwed into the soil layer. The protective netting 5 can be anchored without the need for heavy equipment to enter the site, which improves construction efficiency and safety. It is especially suitable for the operation scenario of narrow slopes in the loess hilly and gully areas. Moreover, it avoids the disturbance of the slope soil by the entry of heavy equipment and effectively protects the original pore structure and stability of the soil.

[0041] The sand-proof road barrier includes a sand-proof medium and a sand-proof medium fixing component 7 for carrying the sand-proof medium. The sand-proof medium fixing component 7 includes an arc rod 72 and an installation rod 71 connected to both ends of the arc rod 72 for insertion into the slope of the sloping road.

[0042] The sand-proof road barrier consists of a sand-proof medium and a sand-proof medium fixing component 7. The sand-proof medium fixing component 7 is used to support and limit the sand-proof medium. The sand-proof medium can effectively intercept and weaken the sand and dust carried by the wind in the loess hilly and gully areas and accumulate on the road surface of the slope, so as to avoid the reduction of the road surface smoothness and friction due to sand and dust coverage, thereby ensuring the traffic efficiency of the slope road.

[0043] The sand-control medium fixing component 7 limits and secures the sand-control medium, preventing it from slipping and ensuring the durability of the sand-control effect. The sand-control barrier adopts a modular design, with one or more sand-control media placed on each fixing component 7. There are multiple fixing components 7, and adjacent fixing components 7 are detachably connected. For example, two adjacent fixing components 7 can be detachably connected via a clamp. By adjusting the number of fixing components 7, the length of the sand-control barrier can be changed to adapt to the actual terrain and protection needs of sloping roads in the loess hilly and gully areas.

[0044] It should be noted that after the installation rod (71) is inserted into the slope soil of the sloping road, the angle between it and the horizontal line is between 30° and 70°. This angle range increases the effective area of ​​the sand-prevention medium, fully intercepts and settles the wind and sand flow, and reduces the accumulation of wind and sand on the road surface of the sloping road.

[0045] In this embodiment, the protective mesh 5 is formed by splicing or fixing multiple rigid metal meshes 51 to form a ring or rectangular structure. The width of the protective mesh 5 is not greater than the width of the road surface on the slope. The mesh size of the rigid metal mesh 51 is smaller than that of the limiting piece 2.

[0046] It should be noted that the hard metal mesh 51 refers to a metal mesh that is not easily deformed, such as hot-dip galvanized metal mesh, cold-dip galvanized metal mesh, stainless steel metal mesh, etc., which have undergone anti-corrosion treatment. The diameter or maximum width of the mesh of the hard metal mesh 51 is not greater than 10cm.

[0047] like Figure 1 and Figure 2 As shown, the protective mesh 5 is formed by splicing together four rigid metal mesh panels 51, forming a rectangular frame structure. The protective mesh 5 is laid on the road surface of the slope road. Ground stakes 1 are inserted into the mesh of the rigid metal mesh panels 51. The connector 11 of the ground stakes 1 is threadedly connected to the limiting plate 2. The minimum width of the limiting plate 2 is greater than 10cm, so that the combination of the ground stakes 1 and the limiting plate 2 can firmly press the protective mesh 5 onto the road surface of the slope road, thereby restraining and protecting the soil of the slope road.

[0048] In this embodiment, the other end of the mounting rod 71 away from the arc rod 72 is fixedly connected to a ground insertion rod 73, and a mounting ring 75 is sleeved on the mounting rod 71, with a support rod 74 provided on the mounting ring 75.

[0049] like Figure 4 As shown, the mounting ring 75 is fitted onto the mounting rod 71 and can move along the length of the mounting rod 71 to change the angle between the support rod 74 and the slope soil. When the ground insertion rod 73 adjusts its insertion angle according to the slope gradient, the mounting ring 75 moves along the mounting rod 71, thereby causing the support rod 74 to follow the insertion angle of the ground insertion rod 73.

[0050] The mounting pole 71 and the ground insertion pole 73 are connected in a line, forming a triangular support structure with the ground insertion pole 73, which improves the stability of the ground insertion pole 73. The support pole 74 can distribute the force on the ground insertion pole 73 and the mounting pole 71, reduce the risk of the ground insertion pole 73 being crushed or collapsed by the sand-proof medium, improve the load-bearing capacity of the mounting pole 71, and prevent the sand-proof road barrier from overturning or sliding under the impact of strong winds, which is suitable for the actual terrain and protection needs of the slope road in the loess hilly and gully area.

[0051] In this embodiment, two adjacent sand-proof medium fixing components 7 are detachably connected. The sand-proof road barrier adopts a modular design, with one or more sand-proof media placed on each sand-proof medium fixing component 7. There are multiple sand-proof medium fixing components 7, and two adjacent sand-proof medium fixing components 7 are detachably connected. For example, two adjacent sand-proof medium fixing components 7 are detachably connected by a clamp. By adjusting the number of sand-proof medium fixing components 7, the length of the sand-proof road barrier can be changed to adapt to the actual terrain and protection needs of slope roads in the loess hilly and gully areas.

[0052] In this embodiment, the number of arc-shaped rods 72 is no less than two. For example... Figure 4 As shown, the arc rod 72 directly bears the sand-proof medium. The arrangement of multiple arc rods 72 can distribute the weight of the sand-proof medium and prevent a single arc rod 72 from deforming and being damaged due to concentrated force. At the same time, multiple arc rods 72 can form a denser bearing surface to prevent the sand-proof medium from slipping.

[0053] In this embodiment, the sand-prevention medium is made of bundled plant stems or branches; vine-like crops are planted below the sand-prevention medium fixing component 7.

[0054] Bundles of plant stalks or branches are easy to obtain, inexpensive, natural, and environmentally friendly. They also have a certain thickness, which can effectively intercept sand and reduce wind speed.

[0055] Planting vine-like crops under the sand-proof medium fixing component 7 serves two purposes. First, the vine-like crops will attach to and entwine the sand-proof medium and the sand-proof medium fixing component 7 after they grow, enhancing the integrity and durability of the sand-proof road barrier. Second, the withered vine-like crops can serve as a new sand-proof medium, eliminating the need for frequent replacement of the sand-proof medium and simplifying subsequent maintenance, making it suitable for the actual protection of the loess hilly and gully areas.

[0056] In this embodiment, the ground pile 1 is a helical ground pile, and the bottom of the helical ground pile is provided with helical blades.

[0057] In this embodiment, the crushed stone layer 6 includes a gravel layer, a coarse sand layer, and a medium sand layer laid sequentially from bottom to top. A drainage ditch is provided between two adjacent protective mesh panels 5, and a drainage pipe is buried in the drainage ditch.

[0058] The crushed stone layer 6 is used to guide surface runoff, disperse the scouring force of rainwater, and protect the roadbed of the sloping road; drainage ditches and drainage pipes are used to collect and directionally discharge underground runoff, reduce soil saturation, and stabilize the roadbed and slope of the sloping road.

[0059] First, the roadbed on the slope is cleared and leveled. Then, protective netting 5 is laid, and anchored with ground piles 1. Drainage ditches are dug between adjacent protective netting 5, and drainage pipes are buried in the ditches. Next, gravel, coarse sand, and medium sand layers are laid in sequence. Then, sand-control medium fixing components 7 are inserted to place the sand-control medium.

[0060] Example 2 like Figures 6 to 8 As shown, unlike embodiment one, in this embodiment, the protective netting 5 is formed by splicing or fixing multiple rigid metal meshes 51 and at least one flexible metal wire rope mesh 52 to form a ring or rectangular structure. The side of the flexible metal wire rope mesh 52 closest to the slope is fixed by ground nails 8. The width of the protective netting 5 is not greater than the width of the road surface on the slope. The mesh size of both the rigid metal mesh 51 and the flexible metal wire rope mesh 52 is smaller than that of the limiting piece 2.

[0061] It should be noted that the roadbed of sloping roads is often irregular in shape, especially on the side of the roadbed closest to the slope. Therefore, in this embodiment, the protective netting 5 includes at least one flexible metal wire rope netting 52. The flexible metal wire rope netting 52 has good deformation capability. Stretching the flexible metal wire rope netting 52 causes it to deform, which can conform to the irregular contour of the sloping road. Then, the flexible metal wire rope netting 52 is fixed with ground nails 8, thereby ensuring that the protective netting 5 covers and effectively restrains the surface soil, adapting to the terrain conditions of sloping roads in hilly and gully areas.

[0062] The ground stake 8 includes a U-shaped rod 82 and a washer 81 inserted on the U-shaped rod 82. The washer 81 can move along the length of the U-shaped rod 82. The mesh size of the flexible metal wire rope mesh 52 is smaller than that of the washer 81.

[0063] The mesh size of the flexible metal wire rope mesh 52 is smaller than that of the gasket 81. The gasket 81 can provide stable pressure to the flexible metal wire rope mesh 52 and prevent the flexible metal wire rope mesh 52 from slipping off.

[0064] In one possible embodiment, the base material of the U-shaped rod 82 is stainless steel, with a galvanized surface to improve rust and corrosion resistance. The length of the U-shaped rod 82 is 20 centimeters. The washer 81 is circular or square.

[0065] The above description is merely an embodiment of this application and does not constitute any limitation on this application. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of this application shall still fall within the protection scope of the technical solution of this application.

Claims

1. A slope road protection structure in the loess hilly and gully area, characterized in that: Includes protective netting (5) laid on the road surface of the slope road, ground piles (1) used to anchor the protective netting (5) and a layer of crushed stone (6) laid on the protective netting (5), as well as sand-proof road barriers installed on the slope of the slope road; One end of the ground pile (1) is provided with a connector (11) with internal threads. The internal threads of the connector (11) are adapted to the connecting rod with external threads. The top end of the connecting rod is provided with a limiting piece (2) for limiting the mesh of the protective mesh (5). The outer surface of the connector (11) is polygonal. One end of the adapter (3) has a sleeve adapted to the polygonal shape. The other end of the adapter (3) is connected to the hand drill (4). The sand-proof road barrier includes a sand-proof medium and a sand-proof medium fixing component (7) for carrying the sand-proof medium. The sand-proof medium fixing component (7) includes an arc rod (72) and an installation rod (71) connected to both ends of the arc rod (72) for insertion into the slope of the sloping road.

2. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The protective mesh (5) is formed by splicing or fixing multiple hard metal mesh (51) to form a ring or rectangular structure. The width of the protective mesh (5) is not greater than the width of the road surface of the sloping road. The mesh size of the hard metal mesh (51) is smaller than that of the limiting plate (2).

3. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The protective netting (5) is formed by splicing or fixing multiple hard metal meshes (51) and at least one flexible metal wire rope mesh (52) to form a ring or rectangular structure. The side of the flexible metal wire rope mesh (52) near the slope is fixed by ground nails (8). The width of the protective netting (5) is not greater than the width of the road surface of the slope. The mesh size of the hard metal mesh (51) and the mesh size of the flexible metal wire rope mesh (52) are both smaller than the limiting plate (2).

4. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The ground stake (8) includes a U-shaped rod (82) and a washer (81) inserted on the U-shaped rod (82). The washer (81) can move along the length of the U-shaped rod (82). The mesh size of the flexible metal wire rope mesh (52) is smaller than that of the washer (81).

5. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The other end of the mounting rod (71) away from the arc rod (72) is fixedly connected to the ground plug rod (73). The mounting rod (71) is fitted with a mounting ring (75), and a support rod (74) is provided on the mounting ring (75).

6. A slope road protection structure in the loess hilly and gully area according to claim 1 or 5, characterized in that: The two adjacent sand-proof medium fixing parts (7) can be detachably connected.

7. A slope road protection structure in the loess hilly and gully area according to claim 5, characterized in that: The number of circular arc rods (72) shall not be less than 2.

8. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The sand-control medium uses bundled plant stems or branches; vines are planted below the sand-control medium fixing parts (7).

9. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: The crushed stone layer (6) includes a gravel layer, a coarse sand layer and a medium sand layer laid from bottom to top.

10. A slope road protection structure in the loess hilly and gully area according to claim 1, characterized in that: A drainage ditch is provided between two adjacent protective net panels (5), and a drainage pipe is buried in the drainage ditch.

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