Ecological restoration structure and ecological restoration method for side slope

Abstract

The invention provides a slope ecological restoration structure and an ecological restoration method. The restoration structure comprises a plurality of base layers, a plant cushion layer and an anchoring assembly. The multiple base layers are all arranged in a foundation pit of the side slope, each base layer comprises bag bodies and filler filled in the bag bodies, the number of the bag bodies of the upper base layer is smaller than that of the bag bodies of the lower base layer, and first openings and second openings are formed in the top faces and the bottom faces of the bag bodies correspondingly. The bag body comprises a body and film layers connected to the first opening and the second opening, the film layers are made of biodegradable materials, the first opening and the second opening between the adjacent base layers are oppositely arranged, the plant cushion layer is laid on the top base layer, the anchoring assembly comprises a long anchor rod and a first anchoring plate, the long anchor rod penetrates through the multiple base layers, and the first anchoring plate is arranged between the long anchor rod and the first anchoring plate. The first anchoring plate is arranged at the top end of the long anchor rod. According to the slope ecological restoration structure, the stability of the slope restoration structure can be improved, and the restoration quality of the slope is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of slope restoration, and in particular to a slope ecological restoration structure and an ecological restoration method. Background Art

[0002] Slope ecological restoration refers to the restoration and reconstruction of the ecological function and stability of the slope area through a series of ecological engineering and biotechnology measures, reducing soil erosion, preventing landslides and other geological disasters, and promoting the improvement of biodiversity and ecological environment. With the acceleration of urbanization and the continuous advancement of infrastructure construction, slope excavation and construction activities are becoming more and more frequent. These activities often destroy the original ecological environment, leading to a series of problems such as soil erosion, vegetation destruction and ecological imbalance.

[0003] In the slope area, due to the loose soil and sparse vegetation, it is very easy to be washed by rain and wind, causing serious soil and water loss. At the same time, the stability of the slope is destroyed, which may lead to geological disasters such as landslides and collapses, further endangering the surrounding environment and human activities. Therefore, the ecological restoration of the slope is particularly important.

[0004] At present, the slope repair structure is usually to stack a certain number of soil bags in the foundation pit. The arrangement of the soil bags is usually set according to the structure of the foundation pit. First, a small number of soil bags are placed at the bottom of the foundation pit, and then the number of soil bags in each layer is gradually increased until the top of the foundation pit. Although this repair structure can achieve a certain repair effect, due to the gradual increase of soil bags in each layer, the weight of the upper soil bags is greater than that of the lower soil bags. Therefore, the upper soil bags are prone to slide downward relative to the lower soil bags, resulting in unstable slope ecological restoration. Summary of the invention

[0005] In order to increase the stability of the slope repair structure and ensure the ecological restoration quality of the slope, the present application provides a slope ecological restoration structure and an ecological restoration method.

[0006] On the one hand, an embodiment of the present application proposes a slope ecological restoration structure, including a multi-layer foundation layer, a plant cushion layer, an anchoring component and a protective net. The multiple layers of foundation layers are all arranged in the foundation pit of the slope, and the foundation layers include multiple bags and fillers filled in the bags, wherein the adjacent bags are arranged in parallel, and in the adjacent foundation layers, the number of bags in the upper foundation layer is less than the number of bags in the lower foundation layer, the bags in the upper foundation layer are attached to the bags in the lower foundation layer, and the bags in the bottom foundation layer are attached to the bottom of the foundation pit, and the top and bottom surfaces of the bags are respectively provided with a first opening and a second opening, and the bag body includes a main body and a film layer connected to the first opening and the second opening, and the material of the film layer includes a biodegradable material, and the first opening and the second opening between the adjacent foundation layers are arranged oppositely, and the plant mat layer is laid on the top layer of the foundation layer among the multiple layers of the foundation layers, and the anchoring assembly includes a long anchor rod and a first anchor plate, and the long anchor rod penetrates the multiple layers of the foundation layers to connect the multiple layers of the foundation layers, and the first anchor plate is arranged at the top end of the long anchor rod, and the first anchor plate is pressed on the plant mat layer, and the protective net covers the plant mat layer.

[0007] By adopting the above technical scheme, since the number of bags in the upper base layer is less than the number of bags in the lower base layer, the bags in the upper base layer are attached to the bags in the lower base layer, and the bags in the lower base layer are attached to the base of the foundation pit, that is, starting from the base, the number of bags in each base layer gradually increases, so that the weight of the lower base layer is greater than that of the upper base layer. Therefore, it is beneficial to increase the stability of the base layer, and thus improve the overall stability of the repair structure.

[0008] In addition, the first opening and the second opening on the top and bottom surfaces of the base layer are connected to a degradable film layer. After the base layer is laid for a period of time, the film layer degrades, and the soil or gravel in the bag of the base layer penetrate each other to form a more stable whole. Therefore, the stability of the repair structure can be further improved.

[0009] According to one aspect of the embodiment of the present application, the number of the first opening and the second opening is at least two, and they are respectively located on both sides of the top surface and the bottom surface of the bag body.

[0010] According to one aspect of an embodiment of the present application, the bags of adjacent base layers are arranged alternately, and the two first openings on the top surface of the bag bodies of the lower base layer are respectively arranged opposite to the second openings on the bottom surfaces of the two bag bodies of the upper base layer.

[0011] According to one aspect of an embodiment of the present application, the multi-layer foundation layer includes a base layer and a nutrient supply layer stacked in sequence from the bottom of the foundation pit.

[0012] According to one aspect of an embodiment of the present application, the thickness of the base layer is greater than the thickness of the nutrient supply layer, and the number of layers of the nutrient supply layer is set to 2-5 layers.

[0013] According to one aspect of an embodiment of the present application, the slope ecological restoration structure according to claim 4 is characterized in that the anchoring assembly also includes a short anchor rod and a second anchor plate, the short anchor rod sequentially penetrates the base layer and the substrate or sequentially penetrates the nutrient supply layer, the base layer and the substrate, the second anchor plate is arranged between the base layer and the nutrient supply layer and between adjacent nutrient supply layers, and the second anchor plate is connected to the short anchor rod.

[0014] According to one aspect of an embodiment of the present application, the anchoring assembly further includes a protective net, and the protective net covers the plant cushion layer.

[0015] On the other hand, the present application also proposes a slope ecological restoration method, comprising the following steps: a foundation pit processing step, excavating a foundation pit on the slope surface, and trimming the base surface of the foundation pit into an arc-shaped surface; a step of laying a base layer, providing a base layer and a nutrient supply layer as described in any of the above embodiments, stacking the base layer and the nutrient supply layer in sequence from the base upward, and fitting the bottom surface of the base layer to the base surface, fitting the bottom surface of the nutrient supply layer to the top surface of the base layer, and interlacing the bags of the base layer and the nutrient supply layer, so that the first opening of the top surface of the base layer is opposite to the second opening of the bottom surface of the nutrient supply layer; Laying a plant cushion layer, providing a plant cushion layer as described in any of the above embodiments, and laying the plant cushion layer on the nutrient supply layer; The reinforcement step comprises providing an anchoring assembly and a protective net as described in any of the above embodiments, anchoring the base layer and the foundation pit through the anchoring assembly, and laying the protective net on the plant cushion layer.

[0016] According to another aspect of an embodiment of the present application, the step of laying the base layer includes laying at least two layers of the nutrient supply layer after laying the base layer, and laying soil on the nutrient supply layer to fill the gaps between adjacent nutrient supply layers and form an inclined plane on the top of the nutrient supply layer.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the slope ecological restoration structure of an embodiment of the present application; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 This is a schematic diagram of the structure of the slope ecological restoration structure after the membrane layer is degraded according to an embodiment of the present application; Figure 4 It is a schematic diagram of the structure of the bag body in the slope ecological restoration structure of the embodiment of the present application; Figure 5 It is a schematic diagram of the implementation process of the slope ecological restoration method of an embodiment of the present application.

[0019] In the accompanying drawings, 10 is a base layer, 11 is a base layer, 111 is a first opening, 112 is a second opening, 113 is a bag body, 113 is a film layer, 114 is a filler, 12 is a nutrient supply layer, 20 is a plant cushion layer, 30 is an anchoring assembly, 31 is a long anchor rod, 32 is a first anchoring plate, 33 is a short anchor rod, 34 is a second anchoring plate, 40 is a protective net, and 50 is a foundation pit. DETAILED DESCRIPTION

[0020] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0021] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0023] In the related art, when repairing a slope, a structure is used in which the number of upper soil bags is greater than the number of lower soil bags. This structure easily causes sliding between the upper and lower soil bags, thereby affecting the stability of the repair structure.

[0024] Based on this, the embodiment of the present application provides a slope ecological restoration structure to solve the above technical problems. The slope ecological restoration structure provided by the embodiment of the present application is introduced below.

[0025] like Figures 1 to 4 As shown, an embodiment of the present application provides a slope ecological restoration structure, which may include a multi-layer foundation layer 10, a plant cushion layer 20 and an anchoring assembly 30.

[0026] The multi-layer foundation layer 10 is arranged in the foundation pit of the slope, and the foundation layer 10 includes a plurality of bags 113 and fillers 114 filled in the bags 113. Specifically, the multi-layer foundation layer 10 includes a base layer 11 and a nutrient supply layer 12 stacked in sequence from the bottom of the foundation pit. The filler 114 in the bag 113 of the base layer 11 can be a mixture of gravel and wet soil, etc., and the filler 114 in the bag 113 of the nutrient supply layer 12 can be nutrient soil or a mixture of nutrient soil and gravel.

[0027] The thickness of the base layer 11 is greater than the thickness of the nutrient supply layer 12, so that the base layer 10 can have a stable foundation. In addition, the number of layers of the nutrient supply layer 12 is set to 2-5 layers, for example, the number of the nutrient supply layer 12 can be 3 layers, which can not only increase the stability of the base layer 10, but also provide sufficient nutrients for vegetation growth.

[0028] Adjacent bags 113 are arranged side by side, and in adjacent base layers 10, the number of bags 113 in the upper base layer 10 is less than the number of bags 113 in the lower base layer 10, that is, starting from the base upwards, the number of bags 113 in each base layer 10 gradually decreases, that is, the number of bags 113 in the nutrient supply layer 12 is less than the number of bags 113 in the base layer 11, and in adjacent nutrient supply layers 12, the number of bags 113 in the upper nutrient supply layer 12 is less than the number of bags 113 in the lower nutrient supply layer 12, so that the weight of the lower base layer 10 is greater than the weight of the upper base layer 10, thereby forming a tower-shaped stable structure, which is beneficial to increase the stability of the base layer 10, and then improve the overall stability of the repair structure. In addition, the bag body 113 of the upper base layer 10 is attached to the bag body 113 of the lower base layer 10, for example, the bottom surface of the bag body 113 of the nutrient supply layer 12 is attached to the top surface of the bag body 113 of the base layer 11, and the bag body 113 of the bottom base layer 10 is attached to the base of the foundation pit, that is, the bag body 113 of the base layer 11 is attached to the base of the foundation pit.

[0029] It should be noted that the gap between the base layer 11 and the nutrient supply layer 12 and the gap between adjacent nutrient supply layers 12 can be filled with soil and compacted, so that the overall structure can be more stable. In addition, soil can also be laid on the top surface of the nutrient supply layer 12 and compacted to form an inclined plane on the nutrient supply layer 12, which is convenient for subsequent laying and anchoring.

[0030] The top surface and the bottom surface of the bag body 113 are respectively provided with a first opening 111 and a second opening 112. The bag body 113 includes a main body and a film layer 1131 connected to the first opening 111 and the second opening 112. The shapes of the first opening 111 and the second opening 112 can be circular or square. The outer diameters of the first opening 111 and the second opening 112 can be set between 10cm and 15cm. The material of the film layer 1131 includes a biodegradable material. Optionally, the material of the bag body 113 can be a synthetic fiber fabric sheet, and the material of the film layer 1131 can be polylactic acid (PLA) material. The film layer 1131 and the bag body 113 can be connected by fixing methods such as bonding, pressing or sewing.

[0031] The first opening 111 and the second opening 112 between adjacent base layers 10 are arranged opposite to each other. For example, the first opening 111 on the top surface of the base layer 11 is opposite to the second opening 112 on the bottom surface of the nutrient supply layer 12, that is, the biodegradable film layers on the base layer 11 and the bag body 113 of the nutrient supply layer 12 are in contact with each other. Therefore, after the base layer 10 is laid for a period of time, the film layers of the base layer 11 and the nutrient supply layer 12 are degraded, and the soil or gravel in the base layer 11 and the bag body 113 of the nutrient supply layer 12 penetrate each other to form a more stable whole, thereby further improving the stability of the repair structure.

[0032] The number of the first opening 111 and the second opening 112 is at least two, that is, the top surface and the bottom surface of the base layer 11 and the nutrient supply layer 12 each have at least two first openings 111 and two second openings 112, and are respectively located on both sides of the top surface and the bottom surface of the bag body 113 of the base layer 11 and the bag body 113 of the nutrient supply layer 12. By increasing the number of the first openings 111 and the second openings 112, more soil or gravel can be mutually infiltrated between the base layer 11 and the nutrient supply layer 12, and sliding between the base layer 11 and the nutrient supply layer 12 and the adjacent nutrient supply layer 12 can be avoided, so as to improve the stability of the base layer 10.

[0033] In addition, the bags 113 of adjacent base layers 10 are arranged in an interlaced manner, that is, the bags 113 of the base layer 11 and the nutrient supply layer 12 are interlaced, and the bags 113 of adjacent nutrient supply layers 12 are interlaced, and the interlaced base layers 10 can form a more stable structure. The two first openings 111 on the top surface of the bag 113 of the lower base layer 10 are respectively arranged opposite to the second openings 112 on the bottom surfaces of the bag 113 of the two upper base layers 10, that is, the two first openings 111 on the top surface of the bag 113 of the base layer 11 are opposite to the adjacent second openings 112 on the bottom surfaces of the bag 113 of the two nutrient supply layers 12 above it, so that the soil or gravel between the base layer 11 and the nutrient supply layer 12 and between adjacent nutrient supply layers 12 can penetrate each other, so as to enhance the stability of the entire structure, thereby forming a more solid ecological restoration structure.

[0034] The plant mat 20 is laid on the top base layer 10 of the multi-layer base layer 10 , that is, the plant mat 20 is laid on the top nutrient supply layer 12 , and the nutrient supply layer 12 provides the plant mat 20 with nutrients required for growth.

[0035] The anchoring assembly 30 includes a long anchor rod 31 and a first anchor plate 32. The long anchor rod 31 penetrates the multi-layer foundation layer 10 to connect the multi-layer foundation layer 10. The first anchor plate 32 is arranged at the top end of the long anchor rod 31, and the first anchor plate 32 is pressed on the plant pad 20. The shape of the first anchor plate 32 can be circular or square. The first anchor plate 32 and the long anchor rod 31 can be fixed by a nut, that is, the top of the long anchor rod 31 is provided with an external thread, and the nut is connected to the long anchor rod 31 through the external thread.

[0036] In addition, the anchor assembly 30 also includes a short anchor rod 33 and a second anchor plate 34. The short anchor rod 33 sequentially penetrates the base layer 11 and the base or sequentially penetrates the nutrient supply layer 12, the base layer 11 and the base. The second anchor plate 34 is arranged between the base layer 11 and the nutrient supply layer 12 and between adjacent nutrient supply layers 12. The second anchor plate 34 is connected to the short anchor rod 33. The short anchor rod 33 and the second anchor plate 34 can reinforce the base layer 11 and each layer of the nutrient supply layer 12 again, thereby avoiding sliding of the base layer 11 and the nutrient supply layer 12 to further increase the stability of the base layer 10.

[0037] The repair structure may further include a protective net 40 , which covers the plant mat 20 . The protective net 40 may be a metal net to further increase the stability of the repair structure. The protective net 40 is fixed by other anchor rods or by the first anchor plate 32 .

[0038] On the other hand, the present application embodiment also proposes a slope ecological restoration method, such as Figure 5As shown, the repair method includes the following steps: a foundation pit processing step, excavating a foundation pit on the slope surface, and trimming the base surface of the foundation pit into an arc-shaped surface; a foundation layer 10 laying step, providing a base layer 11 and a nutrient supply layer 12 as in any of the above-mentioned embodiments, stacking the base layer 11 and the nutrient supply layer 12 in sequence from the base to the top, and fitting the bottom surface of the base layer 11 to the base, and fitting the bottom surface of the nutrient supply layer 12 to the top surface of the base layer 11, and staggering the bag bodies 113 of the base layer 11 and the nutrient supply layer 12, so that the first opening 111 on the top surface of the base layer 11 is opposite to the second opening 112 on the bottom surface of the nutrient supply layer 12; laying a plant cushion layer 20, providing a plant cushion layer 20 as in any of the above-mentioned embodiments, and laying the plant cushion layer 20 on the nutrient supply layer 12; a reinforcement step, providing an anchoring assembly 30 and a protective net 40 as in any of the above-mentioned embodiments, anchoring the base layer 10 to the foundation pit through the anchoring assembly 30, and laying the protective net 40 on the plant cushion layer 20.

[0039] The slope ecological restoration method provided in the present application can form a stable restoration structure on the slope, thereby helping to reduce soil erosion on the slope and prevent slope landslides.

[0040] Optionally, the step of laying the base layer 10 includes laying at least two layers of nutrient supply layers 12 after laying the base layer 11, and laying soil on the nutrient supply layers 12 to fill the gaps between adjacent nutrient supply layers 12, and forming an inclined plane on the top of the nutrient supply layers 12, so as to facilitate the fixation of the plant cushion layer 20 and help increase the stability between the nutrient supply layers 12.

[0041] The specific implementation process of the slope ecological restoration method in the embodiment of the present application is as follows: According to the damage of the slope, an excavator is used to dig a foundation pit 50 on the slope, and the base surface of the foundation pit 50 is trimmed into an arc surface, and then the base layer 11 and the nutrient supply layer 12 are laid according to the depth of the foundation pit. For example, the maximum depth of the base layer 11 is 80 cm. First, the base layer 11 filled with gravel and wet soil is laid on the base. The size of the base layer 11 bag 113 can be selected to be 80 cm×50 cm×30 cm, and then one end of a short anchor rod 33 with a length of 40 cm is inserted into the base layer 11 and extends into the base, and the other end of the short anchor rod 33 is connected to the second anchor plate 34 and locked by a nut, and then the first nutrient supply layer 12 is laid on the base layer 11, and then one end of a short anchor rod 33 with a length of 60 cm is inserted into the first nutrient supply layer 12 and penetrates the base layer 11 and the base, and the other end of the short anchor rod 33 is connected to the second anchor plate 34 and locked by a nut, and then the second nutrient supply layer 1 is laid on the first nutrient supply layer 12 2. Insert one end of a short anchor rod 33 with a length of 80 cm into the second nutrient supply layer 12 and penetrate the first nutrient supply layer 12, the base layer 11 and the base, and connect the second anchor plate 34 to the other end of the short anchor rod 33 and lock it with a nut. Then lay soil on the second nutrient supply layer 12 and compact it to form an inclined plane on the second nutrient supply layer 12, wherein the bag body 113 of the first nutrient supply layer 12 and the second nutrient supply layer 12 can be filled with nutrient soil, and the size of the bag body 113 can be selected to be 60 cm×40 cm×20 cm. Then lay a plant cushion layer 20 on the second nutrient supply layer 12, and then lay a protective net 40 on the plant cushion layer 20. Finally, insert one end of a long anchor rod 31 with a length of 120 cm into the plant cushion layer 20 and penetrate the two nutrient supply layers 12, the base layer 11 and the base in sequence, and connect the first anchor plate 32 to the other end of the long anchor rod 31 and lock it with a nut.

[0042] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A slope ecological restoration structure, characterized in that: include: A multi-layer foundation layer (10), wherein the multi-layer foundation layer (10) is arranged in a foundation pit of a slope, wherein the foundation layer (10) comprises a plurality of bags (113) and fillers (114) filled in the bags (113), wherein adjacent bags (113) are arranged in parallel, and in adjacent foundation layers (10), the number of bags (113) of the upper foundation layer (10) is less than the number of bags (113) of the lower foundation layer (10), and the bags (113) of the upper foundation layer (10) are attached to the bags (113) of the lower foundation layer (10). 113), the bag body (113) of the bottom base layer (10) is attached to the base of the foundation pit, the top surface and the bottom surface of the bag body (113) are respectively provided with a first opening (111) and a second opening (112), the bag body (113) comprises a main body and a film layer (1131) connected to the first opening (111) and the second opening (112), the material of the film layer (1131) comprises a biodegradable material, and the first opening (111) and the second opening (112) between adjacent base layers (10) are arranged opposite to each other; A plant cushion layer (20) is laid on the top base layer (10) among the multiple base layers (10); The anchoring assembly (30) comprises a long anchor rod (31) and a first anchoring plate (32), wherein the long anchor rod (31) penetrates through the multiple layers of the base layer (10) to connect the multiple layers of the base layer (10), and the first anchoring plate (32) is arranged at the top end of the long anchor rod (31), and the first anchoring plate (32) is pressed onto the plant cushion layer (20).

2. The slope ecological restoration structure according to claim 1 is characterized in that: The number of the first opening (111) and the second opening (112) is at least two, and they are respectively located on both sides of the top surface and the bottom surface of the bag body.

3. The slope ecological restoration structure according to claim 2 is characterized in that: The bags of adjacent base layers (10) are arranged in a staggered manner, and the two first openings (111) on the top surface of the bag of the lower base layer (10) are arranged opposite to the second openings (112) on the bottom surface of the bag of the two upper base layers (10).

4. The slope ecological restoration structure according to claim 1 is characterized in that: The multi-layer base layer (10) comprises a base layer (11) and a nutrient supply layer (12) stacked in sequence from the bottom of the foundation pit.

5. The slope ecological restoration structure according to claim 4 is characterized in that: The thickness of the base layer (11) is greater than the thickness of the nutrient supply layer (12), and the number of layers of the nutrient supply layer (12) is set to 2-5 layers.

6. The slope ecological restoration structure according to claim 4 is characterized in that: The anchor assembly (30) further comprises a short anchor rod (33) and a second anchor plate (34); the short anchor rod (33) sequentially penetrates the base layer (11) and the substrate or sequentially penetrates the nutrient supply layer (12), the base layer (11) and the substrate; the second anchor plate (34) is arranged between the base layer (11) and the nutrient supply layer (12) and between adjacent nutrient supply layers (12); the second anchor plate (34) is connected to the short anchor rod (33).

7. The slope ecological restoration structure according to claim 1 is characterized in that: The anchoring assembly (30) further comprises a protective net (40), wherein the protective net (40) covers the plant cushion layer (20).

8. A slope ecological restoration method, characterized in that: The following steps are involved: a foundation pit processing step, excavating a foundation pit on the slope surface, and trimming the base surface of the foundation pit into an arc-shaped surface; The step of laying a base layer (10) comprises providing a base layer (11) and a nutrient supply layer (12) as described in claims 1 to 7, stacking the base layer (11) and the nutrient supply layer (12) in sequence from the base upward, and fitting the bottom surface of the base layer (11) to the base, and fitting the bottom surface of the nutrient supply layer (12) to the top surface of the base layer (11), and staggering the bags of the base layer (11) and the nutrient supply layer (12), so that the first opening (111) on the top surface of the base layer (11) is opposite to the second opening (112) on the bottom surface of the nutrient supply layer (12); Laying a plant cushion layer (20), providing a plant cushion layer (20) as claimed in claims 1 to 7, and laying the plant cushion layer (20) on the nutrient supply layer (12); A reinforcement step, providing an anchoring assembly (30) and a protective net (40) as described in claims 1 to 7, anchoring the base layer (10) and the foundation pit through the anchoring assembly (30), and laying the protective net (40) on the plant cushion layer (20).

9. The slope ecological restoration method according to claim 8, characterized in that: The step of laying the base layer (10) comprises laying at least two layers of the nutrient supply layer (12) after laying the base layer (11), and laying soil on the nutrient supply layer (12) to fill the gaps between adjacent nutrient supply layers (12) and to form an inclined plane on the top of the nutrient supply layer (12).

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