Ecological slope protection system applied to loess roadbed

Abstract

The embodiment of the utility model provides an ecological slope protection system applied to a loess roadbed. The ecological slope protection system comprises a reinforced concrete protection grating arranged on the surface of a slope body. The reinforced concrete protective grating is provided with a plurality of mutually independent planting spaces. And slope protection vegetation can be planted in each planting space. The slope protection vegetation comprises herbaceous plants or a mixture of the herbaceous plants and shrubs; in the planting space, the seed sowing amount of the slope protection vegetation can be set to be (44-46) g / m < 2 >. By means of the design of the protection system, the good slope protection capacity is achieved, and the ecological environment can be repaired.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental protection, and more particularly to an ecological slope protection system applied to loess subgrade. BACKGROUND

[0002] The inventor found in the research that the ecological slope protection system of the prior art has at least the following disadvantages:

[0003] Traditional slope protection projects are generally composed of masonry and facing wall structures, have poor erosion resistance, consume a large amount of resources, and most of the protection projects are not coordinated with the surrounding landscape, affecting the original harmonious ecological environment. SUMMARY

[0004] The utility model aims to provide an ecological slope protection system applied to loess subgrade, which has good slope protection capability and can repair the ecological environment.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] In a first aspect, the utility model provides an ecological slope protection system applied to loess subgrade, comprising:

[0007] A reinforced concrete protection grid arranged on the surface of the slope body, the reinforced concrete protection grid is provided with a plurality of planting spaces independent of each other;

[0008] The planting space is used for planting slope protection vegetation, and the slope protection vegetation comprises herbaceous plants or a mixture of herbaceous plants and shrubs.

[0009] In an optional embodiment, the reinforced concrete protection grid comprises a plurality of reinforced concrete partition strips and a plurality of reinforced concrete arches, the plurality of reinforced concrete partition strips are arranged at intervals in a first direction, and a plurality of reinforced concrete arches in a second direction perpendicular to the first direction are arranged between adjacent reinforced concrete partition strips.

[0010] In an optional embodiment, all the reinforced concrete arches between adjacent reinforced concrete partition strips are convexly arranged towards the top of the slope body.

[0011] In an optional embodiment, a first water drainage channel extending in the second direction is arranged on each reinforced concrete partition strip, and a second water drainage channel is arranged on the surface of the reinforced concrete arch, and the two ends of the second water drainage channel are respectively connected to two first water drainage channels located on the two sides of the reinforced concrete arch.

[0012] In an optional embodiment, the reinforced concrete protective grid further comprises a water baffle, the water baffle comprises an arch-shaped strip and two straight strips, the arch-shaped strip is protruded on the surface of the reinforced concrete roll, and the extension direction of the inner concave edge of the reinforced concrete roll is consistent, the two straight strips are respectively protruded on the surface of the two reinforced concrete partition strips on the opposite sides of the reinforced concrete roll, one end of the two straight strips is connected with both ends of the arch-shaped strip, and the other end of the two straight strips is spaced apart from the adjacent arch-shaped strip below to form a gap.

[0013] In the first direction, the adjacent straight strips on the same reinforced concrete partition strip are arranged at intervals and form the first water-repellent channel; the upper part of the arch-shaped strip forms the second water-repellent channel, and the end part of the second water-repellent channel is connected with the first water-repellent channel through the corresponding gap.

[0014] In an optional embodiment, the thickness of the arch-shaped strip gradually decreases from the middle part to both ends of the arch-shaped strip, and the thickness direction of the arch-shaped strip is the same as the second direction.

[0015] In an optional embodiment, the bottom surface of the reinforced concrete partition strip and the reinforced concrete roll is provided with a concave-convex part for mutual engagement with the body of the slope.

[0016] In an optional embodiment, the reinforced concrete partition strip and the reinforced concrete roll are provided as an integrated structure.

[0017] In an optional embodiment, the ecological slope protection system further comprises a mud retaining wall, the mud retaining wall is arranged on one side of the bottom of the reinforced concrete protective grid, and the mud retaining wall is used for blocking the soil and rocks that are washed and slide by rainwater.

[0018] In an optional embodiment, the mud retaining wall has an inner side surface connected with the surface of the reinforced concrete protective grid, the inner side surface is arranged at an acute angle with the surface, and a drainage hole is arranged through the mud retaining wall, and the distance between the center of the drainage hole and the edge of the mud retaining wall is 50mm-80mm.

[0019] The beneficial effects of the embodiments of the utility model include, for example:

[0020] The ecological slope protection system applied to the loess roadbed provided by the embodiment is characterized in that a reinforced concrete protection grid is arranged on the surface of the slope body first, the reinforced concrete protection grid is combined with the slope body together, and part of the reinforced concrete protection grid can be embedded into the slope body, thereby improving the structural stability of the slope body and reducing the landslide risk. 2 The ecological slope protection system can provide better slope protection and also can conserve water, thereby effectively protecting the slope environment. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical schemes of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 FIG. 1 is a first perspective view of the ecological slope protection system according to the embodiment of the present application;

[0023] Figure 2 FIG. 2 is a second perspective view of the ecological slope protection system according to the embodiment of the present application;

[0024] Figure 3 FIG. 3 is a third perspective view of the ecological slope protection system according to the embodiment of the present application;

[0025] Figure 4 FIG. 4 is a schematic view of the water baffle according to the embodiment of the present application.

[0026] FIG. 4 is a schematic view of the water baffle according to the embodiment of the present application.

[0027] 001-slope body; 100-reinforced concrete protection grid; 101-planting space; 110-reinforced concrete partition strip; 120-reinforced concrete arch roll; 130-water baffle; 131-arch-shaped strip; 132-straight strip; 133-gap; 134-first water drainage channel; 135-second water drainage channel; 150-mud retaining wall; 151-drainage hole; 200-slope protection vegetation. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0030] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, only for the convenience of describing the present application and simplifying the description, and it does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0034] Please refer to Figures 1-4 The present embodiment provides an ecological slope protection system applied to loess roadbed, which comprises a reinforced concrete protection grid 100 arranged on the surface of the slope body 001. The reinforced concrete protection grid 100 is provided with a plurality of planting spaces 101 independent of each other. Each planting space 101 can be used for planting slope protection vegetation 200. The slope protection vegetation 200 comprises herbaceous plants or a mixture of herbaceous plants and shrubs; in the planting space 101, the seed sowing amount of the slope protection vegetation 200 can be set to (44-46) g / m 2 .

[0035] As described above, the ecological slope protection system provided by the present embodiment is arranged as follows:

[0036] The reinforced concrete protective grid 100 is arranged on the surface of the slope body 001, and the reinforced concrete protective grid 100 is combined with the slope body 001. Part of the reinforced concrete protective grid 100 can be embedded into the slope body 001 to form a structure that is interlocked with the slope body 001, thereby improving the structural stability of the slope body 001 and reducing the risk of landslides. Meanwhile, the reinforced concrete protective grid 100 has a plurality of planting spaces 101 that are independent of each other. In the area surrounded by the planting spaces 101, the slope body 001 is exposed. According to the type of the slope body 001, plants can be sown in the corresponding planting spaces 101 to form slope vegetation 200. The slope vegetation 200 can be herbaceous plants or a mixture of herbaceous plants and shrubs. The amount of seeds of the slope vegetation 200 sown in each planting space 101 is controlled to be (44-46) g / m 2 , for example, the amount of seeds of the slope vegetation 200 sown in each planting space 101 can be 44 g / m 2 , 45 g / m 2 , or 46 g / m 2 . While providing better slope protection, the system can also conserve water, thereby effectively protecting the slope environment.

[0037] The following embodiments illustrate the details of the ecological slope protection system of the present application applied to loess subgrade in an exemplary manner.

[0038] In this embodiment, the ecological slope protection system includes a reinforced concrete protective grid 100 arranged on the surface of the slope body 001 and slope vegetation 200 planted in the planting spaces 101. The reinforced concrete protective grid 100 has a plurality of planting spaces 101 that are independent of each other. The slope vegetation 200 includes herbaceous plants or a mixture of herbaceous plants and shrubs. In each planting space 101, the amount of seeds of the slope vegetation 200 sown is set to 45 g / m 2 .

[0039] It should be noted that according to the different soil types of the slope, the slope body 001 is mainly divided into soil slope and soil-rock slope, and the types of the slope vegetation 200 planted in the areas of the soil slope and the soil-rock slope are different. Specifically, the soil thickness of the soil slope is greater than that of the soil-rock slope. Herbaceous plants and shrubs are planted in the planting spaces 101 corresponding to the soil slope, and the ratio of the seed weight of the herbaceous plants to that of the shrubs is (2.9:1)-(3.1:1). For example, in this embodiment, the ratio of the seed weight of the herbaceous plants to that of the shrubs is 3:1. Obviously, in other embodiments, the ratio of the seed weight of the herbaceous plants to that of the shrubs is 2.9:1 or 3.1:1, etc. The soil thickness of the soil-rock slope is relatively thin, and herbaceous plants are planted in the planting spaces 101 corresponding to the soil-rock slope.

[0040] Optionally, the grasses planted in each planting space 101 corresponding to the soil slope include Agrostis stolonifera and Stipa bungeana, and the shrubs include Caragana and Amorpha fruticosa. Meanwhile, the weight ratio of the seeds of Agrostis stolonifera, Stipa bungeana, Amorpha fruticosa and Caragana is set to 3:3:1:1.

[0041] Optionally, the grasses planted in each planting space 101 corresponding to the soil-rock slope include Agrostis stolonifera and Stipa bungeana, and the weight ratio of the seeds of Agrostis stolonifera and Stipa bungeana is set to 1:1.

[0042] It is worth noting that the number of the planting spaces 101 is multiple, and the seed sowing amount of the slope protection vegetation 200 in each planting space 101 can be set to 45g / m 2 , which facilitates the control of the seed weight in the area where the entire slope body 001 is located, and can improve the vegetation coverage rate under the condition that the water supply of the slope is sufficient.

[0043] It should be understood that the screening methods of the grasses and shrubs are as follows:

[0044] Based on the field exploration results, some species with strong drought resistance and stress resistance on the Loess Plateau are preferred. The grasses include Agrostis stolonifera, Stipa bungeana, Stipa bungeana, Artemisia frigida, Artemisia frigida, Artemisia frigida, Artemisia frigida, and the like. The natural shrubs of the Loess Plateau have been basically destroyed, and natural shrubs such as Ulmus pumila, Euonymus alatus, and the like are distributed on the head of the ditch and the cliff of the Loess Plateau. A small amount of vegetation such as Spiraea salicifolia and Rhus potaninii is distributed in the valley area, and some artificial planting species such as Caragana, Amorpha fruticosa, and the like are suitable for the Loess Plateau. After that, indoor planting experiments of vegetation are carried out. Through the measurement of germination rate, water consumption and growth rate, four kinds of slope protection vegetation 200 are preliminarily selected. The grasses include Agrostis stolonifera and Stipa bungeana, and the shrubs are Caragana and Amorpha fruticosa. The climate conditions of the Loess Plateau growing season are simulated in the greenhouse, and the vegetation planting scheme is set. The results show that, from the perspective of slope protection, the slope protection effect of Artemisia frigida is the best, but from the perspective of water consumption, the water consumption of Agrostis stolonifera is the smallest. Based on the results of the potting experiment and the field exploration results, the species of the slope protection vegetation 200 on the Loess Plateau are selected, the shrubs are Amorpha fruticosa and Caragana, and the grasses are Agrostis stolonifera and Stipa bungeana.

[0045] Please refer to Figure 1 and Figure 2In this embodiment, the reinforced concrete protective grid 100 can be constructed by pouring on site on the surface of the slope body 001, and the corresponding construction measures can be formulated according to the site conditions, the flexibility of construction is improved, and the construction quality is improved. It should be understood that before construction, the site construction environment can be surveyed, and the construction area can be planned according to the needs, and the site area can be marked with lime and the like to determine the forming position of the reinforced concrete protective grid 100.

[0046] The first direction can be the extension direction of the road, and the second direction can be the inclination direction of the slope body 001.

[0047] In addition, before pouring, a groove can be arranged on the surface of the slope body 001, and the steel body can be arranged in the groove. After pouring is completed, the concave-convex parts that engage with each other are formed on the bottom surfaces of the reinforced concrete partition strips 110 and the reinforced concrete arch rolls 120, so that the firmness of the reinforced concrete protective grid 100 and the slope body 001 can be effectively improved.

[0048] Optionally, the reinforced concrete partition strip 110 can be arranged as a straight strip extending in the second direction, and a plurality of reinforced concrete partition strips 110 are arranged in parallel and at intervals, and the number of reinforced concrete arch rolls 120 between adjacent reinforced concrete partition strips 110 is arranged as required, which is not limited in this embodiment. Each reinforced concrete arch roll 120 is an arc-shaped strip, which has opposite inner concave surfaces and outer convex surfaces, all the reinforced concrete arch rolls 120 have the same convex direction, and the outer convex surfaces all face the top of the slope body 001, and correspondingly, the inner concave surfaces face the bottom of the slope body 001. In order to improve the structural firmness, the reinforced concrete partition strip 110 and the reinforced concrete arch roll 120 are integrally poured and formed, and the integral structure has higher strength.

[0049] Please refer to Figures 1-2Further, the outer periphery of each planting space 101 is provided with a water baffle 130, which includes an arched strip 131 and two straight strips 132. The arched strip 131 is convexly arranged on the surface of the reinforced concrete arch roll 120 and is consistent with the extension direction of the concave edge of the reinforced concrete arch roll 120. The two straight strips 132 are respectively convexly arranged on the surfaces of the two reinforced concrete partition strips 110 on the opposite sides of the reinforced concrete arch roll 120. The top ends of the two straight strips 132 are connected to the two ends of the arched strip 131 in the extension direction, and the bottom ends of the two straight strips 132 have a spacing with the adjacent arched strip 131 below to form a gap 133, which is located at the convex surface of the reinforced concrete arch roll 120 adjacent and below. Meanwhile, the two sides of each planting space 101 correspond to two gaps 133 respectively on the two sides of the arched strip 131. In the first direction, the adjacent straight strips 132 on the same reinforced concrete partition strip 110 are arranged at intervals to form a first water drainage channel 134. The upper part of the arched strip 131 forms a second water drainage channel 135, and the end of the second water drainage channel 135 is connected to the first water drainage channel 134 through the corresponding gap 133. In this way, when the rainwater flows on the slope body 001, the rainwater is blocked by the water baffle 130, flows along the water baffle 130 to the gaps 133 on the two sides, and is discharged from the first water drainage channels 134 on the two sides. The water baffle 130 has the effect of blocking the rainwater from directly washing the area of the planting space 101 in the slope body 001, reducing the damage of the rainwater to the planting space 101.

[0050] In other words, the arrangement of the water baffle 130 makes the two straight strips 132 of the two adjacent water baffles 130 in the first direction form a first water drainage channel 134 extending in the second direction, and each planting space 101 has a first water drainage channel 134 on each side. Meanwhile, the upper part of the arched strip 131 of the water baffle 130 forms a second water drainage channel 135 extending along the arched strip 131, and the two ends of the second water drainage channel 135 are respectively connected to the two first water drainage channels 134 on the two sides. Rainwater can flow along the water drainage channel, and rainwater is not easy to directly wash the slope body 001.

[0051] Please refer to Figure 4 Optionally, the thickness of the arched strip 131 gradually decreases from the middle part to the two ends of the arched strip 131, and the thickness direction of the arched strip 131 is the same as the second direction. In this way, the thickness of the arched strip 131 is larger at the middle part, and the structural strength of the middle part is higher, which is not easy to crack and damage, and has a long service life.

[0052] In other embodiments, the ecological slope protection system optionally further comprises a mud retaining wall 150 arranged at one side of the bottom of the reinforced concrete protection grid 100, the mud retaining wall 150 is used to block the soil and stones washed and slid by rainwater, part of the soil and stones washed and flowed downward by rainwater are blocked by the mud retaining wall 150, the soil and stones are not easy to be randomly dispersed, and the normal use of the area below the slope body 001 is not affected.

[0053] Please combine Figure 3 Optionally, the mud retaining wall 150 has an inner side surface connected with the surface of the reinforced concrete protection grid 100, the inner side surface is arranged at an acute angle with the surface; the mud retaining wall 150 is provided with a drainage hole 151 penetrating through the mud retaining wall 150, and the distance between the center of the drainage hole 151 and the edge of the mud retaining wall 150 is 50mm-80mm. By configuring the mud retaining wall 150 and the reinforced concrete protection grid 100 at an acute angle, the soil and stones blocked by the mud retaining wall 150 are not easy to cross the mud retaining wall 150 under the driving of rainwater, the soil and stones stay for a long time, which is beneficial to subsequent concentrated cleaning. And the rainwater is normally discharged from the drainage hole 151 at the edge of the mud retaining wall 150, which shortens the time of the mud retaining wall 150 being soaked by rainwater for a long time.

[0054] It should be understood that, in the process of slope protection, in the height direction of the slope, the slope can be generally divided into three layers from bottom to top, the soil of the lower layer is mainly shale with sandstone, because it has a certain protective effect on the ground surface, and the vegetation is not easy to grow, so no ecological protection measures are taken; the soil of the middle layer is mainly clay loess, which can also be called soil-rock slope, and it is not suitable for planting shrubs, through experiments, 45g / m 2 of herbaceous plants are planted, and the vegetation is a mixture of ice grass and long grass in a ratio of 1:1; the soil of the upper layer is mainly sandy loess, which can also be called soil slope, through experiments, 45g / m 2 of herbaceous and shrubs are planted, and the vegetation is ice grass, long grass, purple pagoda tree and shrub willow in a ratio of 3:3:1:1.

[0055] The ecological slope protection system applied to the loess roadbed provided in the embodiment adopts the mode of cooperation of green plants and structural frames to take targeted protection measures for different types of slopes, which can not only play a role in protecting the slope, but also beautify the slope environment and ensure the ecological balance of the slope.

[0056] The embodiment further provides a construction method of the ecological slope protection system applied to the loess roadbed, and the method comprises the following steps:

[0057] In step s100, the reinforced concrete protection grid 100 is arranged on the surface of the slope body 001, so that the reinforced concrete protection grid 100 forms independent multiple planting spaces 101.

[0058] In step s200, the type of the slope in each planting space 101 is obtained, when the type of the slope in the planting space 101 is soil slope, the herbaceous plant and the shrub are planted in the planting space 101 at the same time, the ratio of the seed weight of the herbaceous plant and the shrub is (2.9:1)-(3.1:1), and the total of the seed sowing amount of the herbaceous plant and the shrub in each planting space 101 is controlled in (44-46) g / m 2 ; when the type of the slope in the planting space 101 is soil-rock slope, the herbaceous plant is planted in the planting space 101 at the same time, the seed sowing amount of the herbaceous plant in each planting space 101 is controlled in (44-46) g / m 2 .

[0059] Specifically, when the type of the slope in the planting space 101 is soil slope, the herbaceous plant and the shrub are planted in the planting space 101 at the same time, the herbaceous plant includes the Agrostis stolonifera and the long grass, and the shrub includes the Caragana and the Amorpha fruticosa. Meanwhile, the ratio of the seed weight of the Agrostis stolonifera, the long grass, the Amorpha fruticosa and the Caragana is set to 3:3:1:1, and the total of the seed sowing amount of the herbaceous plant and the shrub in each planting space 101 is controlled in 45 g / m 2 . When the type of the slope in the planting space 101 is soil-rock slope, the herbaceous plant is planted in the planting space 101 at the same time, the herbaceous plant includes the Agrostis stolonifera and the long grass, meanwhile, the ratio of the seed weight of the Agrostis stolonifera and the long grass is set to 1:1, and the seed sowing amount of the herbaceous plant in each planting space 101 is controlled in 45 g / m 2 .

[0060] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An ecological slope protection system for loess roadbeds, characterized in that, include: A reinforced concrete protective grid (100) is used to be installed on the surface of the slope body (001), the reinforced concrete protective grid (100) is provided with multiple independent planting spaces (101); The planting space (101) is used for planting slope protection vegetation (200), which includes herbaceous plants or a mixture of herbaceous plants and shrubs.

2. The ecological slope protection system for loess roadbeds according to claim 1, characterized in that: The reinforced concrete protective grid (100) includes multiple reinforced concrete spacers (110) and multiple reinforced concrete arches (120). The multiple reinforced concrete spacers (110) are arranged at intervals in a first direction, and multiple reinforced concrete arches (120) are provided between adjacent reinforced concrete spacers (110) in a second direction perpendicular to the first direction.

3. The ecological slope protection system for loess roadbeds according to claim 2, characterized in that: All the reinforced concrete arches (120) between adjacent reinforced concrete spacers (110) protrude upward toward the slope body (001).

4. The ecological slope protection system for loess roadbeds according to claim 3, characterized in that: Each of the reinforced concrete spacers (110) is provided with a first drainage channel (134) extending in the second direction, and the surface of the reinforced concrete arch (120) is provided with a second drainage channel (135), the two ends of the second drainage channel (135) being connected to the two first drainage channels (134) located on both sides of the reinforced concrete arch (120).

5. The ecological slope protection system for loess roadbeds according to claim 4, characterized in that: The reinforced concrete protective grid (100) also includes a water-blocking strip (130), which includes an arched strip (131) and two straight strips (132). The arched strip (131) protrudes from the surface of the reinforced concrete arch roll (120) and extends in the same direction as the concave edge of the reinforced concrete arch roll (120). The two straight strips (132) protrude from the surfaces of two reinforced concrete spacers (110) on opposite sides of the reinforced concrete arch roll (120). One end of the two straight strips (132) is connected to both ends of the arched strip (131), and the other end of the two straight strips (132) is spaced from the adjacent arched strip (131) below to form a notch (133). In the first direction, adjacent straight bars (132) are arranged at intervals on the same reinforced concrete spacer (110) to form the first drainage channel (134); a second drainage channel (135) is formed above the arched bar (131), and the end of the second drainage channel (135) is connected to the first drainage channel (134) through the corresponding notch (133).

6. The ecological slope protection system for loess roadbeds according to claim 5, characterized in that: The thickness of the arched strip (131) gradually decreases from the middle of the arched strip (131) towards both ends, and the thickness direction of the arched strip (131) is the same as the second direction.

7. The ecological slope protection system for loess roadbeds according to any one of claims 2-6, characterized in that: The bottom surfaces of the reinforced concrete spacer (110) and the reinforced concrete arch (120) are provided with concave and convex portions for interlocking with the slope body (001).

8. The ecological slope protection system for loess roadbeds according to any one of claims 2-6, characterized in that: The reinforced concrete spacer (110) and the reinforced concrete arch (120) are configured as an integral structure.

9. The ecological slope protection system for loess roadbeds according to any one of claims 2-6, characterized in that: The ecological slope protection system also includes a mud retaining wall (150), which is located on one side of the bottom of the reinforced concrete protective grid (100) and is used to block soil and rocks that are washed away and slid down by rainwater.

10. The ecological slope protection system for loess roadbeds according to claim 9, characterized in that: The mudguard (150) has an inner side that is connected to the surface of the reinforced concrete protective grid (100), and the inner side is set at an acute angle to the surface; a drainage hole (151) is provided through the mudguard (150), and the distance between the center of the drainage hole (151) and the edge of the mudguard (150) is set to 50mm-80mm.

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