A type of erosion gully slope protection blanket

Abstract

This invention relates to a slope protection blanket for erosion gullies, belonging to the field of ecological slope protection technology. To address the problems of existing slope protection blankets, such as weak erosion resistance, insufficient support for vegetation growth, and inability to effectively regulate water and nutrients during ecological restoration, this application comprises a surface protective layer, a middle nutrient matrix layer, a bottom reinforcement layer, and a top fixing block. These layers are stacked sequentially from top to bottom to form a blanket structure, which is laid on the slope. The top of the surface protective layer is fixedly connected to the top of the middle nutrient matrix layer, and the bottom of the middle nutrient matrix layer is fixedly connected to the top of the bottom reinforcement layer. The top of the middle nutrient matrix layer extends beyond the blanket structure and is inserted into the top fixing block. The middle nutrient matrix layer is detachably connected to the top fixing block via multiple bolts. The top fixing block is laid on the top of the slope and fixedly connected to the slope via multiple pre-embedded cones. This application is primarily used as a slope protection structure for erosion gullies.

Description

Technical Field

[0001] This utility model belongs to the field of ecological slope protection technology, specifically relating to an erosion gully slope protection blanket. Background Technology

[0002] Gullies are deep and wide valleys formed on the earth's surface by the erosion of water. The existence of gullies not only damages the topography but also leads to soil erosion, decreased soil fertility, and even geological disasters such as mudslides, posing a serious threat to the ecological environment and human life and production.

[0003] Slope protection blankets, as a commonly used material for protecting gullies, play an important role in gully control. Traditional slope protection blankets are generally woven from fiber materials, and their main function is to cover the slope of the gully, slowing down the erosion of the soil by rainwater and providing a substrate for vegetation growth. Existing slope protection blankets typically have a certain degree of permeability and flexibility, allowing them to conform well to the slope and provide protection to some extent. However, in practice, it has been found that traditional slope protection blankets still have certain drawbacks:

[0004] First: Limited erosion resistance: Under heavy rainfall conditions such as torrential rain, the water flow on the slope is fast and has a great impact force. Traditional slope protection blankets are difficult to effectively resist the erosion of the water flow, and the slope protection blankets are prone to displacement and damage, resulting in direct exposure of the slope soil and a significant reduction in the protection effect.

[0005] Second: Insufficient support for vegetation growth: Existing slope protection blankets are mostly of a single structure with limited internal space, which is not conducive to the growth and rooting of plant roots. Plant roots cannot obtain enough space and nutrients in the slope protection blanket, resulting in low vegetation survival rates and the inability to form a stable plant protection system;

[0006] Third: Single function: Traditional slope protection blankets only have basic protective functions and lack the ability to effectively regulate water, nutrients and other resources required in the ecological restoration of erosion gully slopes, making it difficult to meet the diversified needs of erosion gully ecological management.

[0007] Therefore, in order to overcome the above-mentioned drawbacks, it is very much in line with practical needs to develop an erosion gully slope protection blanket. Utility Model Content

[0008] In order to solve the problems of existing slope protection blankets, such as weak erosion resistance, insufficient support for vegetation growth, and inability to effectively regulate water and nutrients during ecological restoration, this utility model provides an erosion gully slope protection blanket.

[0009] An erosion gully slope protection blanket includes a surface protective layer, a middle nutrient matrix layer, a bottom reinforcement layer, and a top fixing block. The surface protective layer, the middle nutrient matrix layer, and the bottom reinforcement layer are stacked sequentially from top to bottom. The bottom reinforcement layer is laid on the slope, and the bottom of the middle nutrient matrix layer is fixedly connected to the top of the bottom reinforcement layer. The surface protective layer is fixedly connected to the top of the middle nutrient matrix layer. The top of the middle nutrient matrix layer extends outside the blanket structure and is inserted into the top fixing block. The middle nutrient matrix layer is detachably connected to the top fixing block by multiple bolts. The top fixing block is laid on the top of the slope and fixedly connected to the slope by multiple pre-embedded cones.

[0010] Furthermore, the surface protective layer includes multiple transverse fiber woven strips and multiple longitudinal fiber woven strips. The multiple longitudinal fiber woven strips are arranged equidistantly along the length extension direction of the slope. The multiple transverse fiber woven strips are all set on the multiple longitudinal fiber woven strips. The multiple transverse fiber woven strips are arranged equidistantly along the slope extension direction of the slope. Each transverse fiber woven strip is fixedly connected to the corresponding multiple transverse fiber woven strips. The multiple transverse fiber woven strips and the multiple longitudinal fiber woven strips are woven to form a protective mesh structure with a perforated system.

[0011] Furthermore, the middle nutrient substrate layer includes a permeable fabric, an ecological component, and a bottom water-blocking fabric. The permeable fabric and the bottom water-blocking fabric are arranged opposite each other. Multiple longitudinally woven fiber strips are laid on top of the permeable fabric and fixedly connected to it. The ecological component is placed between the permeable fabric and the bottom water-blocking fabric, and the ecological component is fixedly connected to both the permeable fabric and the bottom water-blocking fabric. The bottom end of the bottom water-blocking fabric extends upward and wraps around the bottom end of the ecological component. The top ends of the bottom water-blocking fabric and the top ends of the permeable fabric extend outside the blanket structure and are bonded together to form a connection. The connection is inserted into the top fixing block and is detached and connected to the top fixing block by bolts.

[0012] Furthermore, the ecological component includes N high-strength fiber frames and N-1 water pipes (24), where N is a positive integer greater than 2. The N high-strength fiber frames are arranged equidistantly on the bottom water-blocking cloth along the slope extension direction of the slope, and each high-strength fiber frame is fixedly connected to the bottom water-blocking cloth. Each high-strength fiber frame is filled with an ecological unit. Each water pipe is arranged between two adjacent high-strength fiber frames, and the length extension direction of each water pipe is the same as the length extension direction of the high-strength fiber frame. A water conveying unit is provided on each side of the water pipe, and the water pipe is connected to two adjacent high-strength fiber frames through two water conveying units. The water inlet end of the water pipe is connected to an external water source through a water supply pipe.

[0013] Furthermore, the water conveyance unit includes multiple water conveyance pipes, which are arranged equidistantly along the length of the water guide pipe. One end of each water conveyance pipe is connected to the water guide pipe, and the other end of each water conveyance pipe is connected to the corresponding high-strength fiber frame. A porous permeable material column is inserted into the other end of the water conveyance pipe. One end of the porous permeable material column is connected to the water conveyance pipe, and the other end of the porous permeable material column extends into the ecological unit.

[0014] Furthermore, the ecological unit is a block structure made of humus, water-retaining agent and organic fertilizer, and grass seeds are pre-buried in the ecological unit;

[0015] Furthermore, multiple fiber beams are arranged equidistantly along the length extension direction of the high-strength fiber frame, and the two ends of each fiber beam are integrally formed with the two long side frames of the high-strength fiber frame. The high-strength fiber frame is divided into multiple ecological zones by multiple fiber beams, and each ecological zone is corresponding to at least one water supply pipe.

[0016] Furthermore, the ecological unit is divided into multiple ecological blocks, and each ecological block is arranged in an ecological zone within a high-strength fiber frame, with each ecological block pre-buried with grass seeds.

[0017] Furthermore, a slot is machined in the middle of the side of the top fixing block near the blanket structure. Multiple connecting through holes are machined at equal intervals along the length extension direction of the top fixing block in the upper groove of the slot. Multiple connecting threaded holes are machined at equal intervals along the length extension direction of the top fixing block in the upper groove of the slot. Each connecting through hole is coaxially corresponding to a connecting threaded hole. The bolt segment of each bolt passes through a connecting through hole and the connecting part in sequence and is then inserted into the corresponding connecting threaded hole and threadedly fastened to the top fixing block. Multiple anchoring through holes are machined at equal intervals along the length extension direction of the top fixing block on the side away from the blanket structure. The tip of each pre-embedded cone passes through an anchoring through hole and is inserted into the top of the slope. The pre-embedded cone is fastened to the slope under soil compression.

[0018] Furthermore, after the top of the permeable fabric extends downward and wraps around the bottom of the ecological component, its extension continues to extend horizontally and is fixed to the bottom extension of the bottom water-blocking fabric by adhesive bonding to form a bottom fixing part. The bottom fixing part is fixedly connected to the lower part of the slope surface in the slope by multiple embedded nails.

[0019] The beneficial effects of this application compared to the prior art are:

[0020] 1. The erosion gully protection blanket provided in this application significantly improves the erosion resistance of the blanket by adding a protective mesh structure with a porous system formed by multiple transverse and longitudinal woven fiber strips to the surface of the blanket. The arrangement of multiple transverse woven fiber strips creates a textured surface layer on the blanket, and combined with the high-strength structure of the high-strength fiber frame and bottom reinforcement layer, it can effectively disperse and buffer the impact of water flow and reduce the flow velocity. Compared with traditional blankets, the erosion resistance is increased by more than 50%, and it can still maintain good protection under extreme weather conditions such as heavy rain, reducing soil loss on the slope.

[0021] 2. This application provides an erosion gully slope protection blanket. The middle nutrient substrate layer provides ample nutrients and water for plant growth, while the high-strength fiber frame provides spacious root growth space. Water pipes and conduits regulate the water and nutrient supply within the ecological unit, significantly improving vegetation survival rate and growth quality. Experiments show that using this new slope protection blanket increases vegetation coverage by 30%-40% compared to traditional blankets, forming a more stable plant protection system and achieving the dual effects of ecological restoration and protection.

[0022] 3. The erosion gully slope protection blanket provided in this application integrates multiple functions such as protection, vegetation cultivation, and water and fertilizer regulation. It can not only effectively protect the erosion gully slope, but also artificially regulate water and nutrients according to environmental needs to meet the needs of vegetation growth and promote the restoration and reconstruction of the erosion gully slope ecosystem. Compared with traditional single-function slope protection blankets, it is more in line with the requirements of ecological governance and has a wider application prospect and higher practical value. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the arrangement of the slope protection blanket described in this application;

[0024] Figure 2 This is a schematic diagram of the structure of the slope protection blanket described in this application;

[0025] Figure 3 This is a top view of the surface protective layer in the slope protection blanket described in this application;

[0026] Figure 4 This is a top view of the central nutrient matrix layer in the slope protection blanket described in this application;

[0027] Figure 5 This is a top view of the central nutrient matrix layer in the slope protection blanket described in this application (when fiber beams are provided).

[0028] Figure 6 This is a schematic diagram of the water conduit in the slope protection blanket described in this application;

[0029] Figure 7for Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 8 for Figure 2 A magnified view of a section at point B in the middle;

[0031] Figure 9 This is a schematic diagram showing the connection between the slope protection blanket and the implanted water supply pipe described in this application;

[0032] Figure 10 This is a structural schematic diagram of the masonry water supply pipe described in this application;

[0033] Figure 11 Here is a schematic diagram of the layout of the masonry water supply pipe described in this application:

[0034] Figure 12 This is a schematic diagram showing the connection between the slope protection blanket and the masonry water supply pipe described in this application;

[0035] Figure 13 This is a schematic diagram of the arrangement of the slope protection blanket described in this application (the bottom of the slope protection blanket is fixed to the slope through the bottom fixing part).

[0036] The diagram shows: 1. Surface protective layer, 11. Horizontal fiber woven strip, 12. Longitudinal woven fiber strip, 2. Middle nutrient matrix layer, 21. Permeable cloth, 22. Bottom water-blocking cloth, 23. High-strength fiber frame, 231. Fiber beam, 24. Water pipe, 241. Water supply pipe, 25. Ecological unit, 3. Bottom reinforcement layer, 4. Top fixing block, 41. Bolt, 42. Slot, 43. Anchoring through hole, 5. Embedded cone, 6. Water supply pipe, 61. Water supply pipe joint, 7. Masonry shell, and 8. Slope. Detailed Implementation

[0037] Specific implementation method one: Combining Figures 1 to 12 This embodiment describes an erosion gully slope protection blanket, which includes a surface protective layer 1, a middle nutrient matrix layer 2, a bottom reinforcement layer 3, and a top fixing block 4. The surface protective layer 1, the middle nutrient matrix layer 2, and the bottom reinforcement layer 3 are stacked sequentially from top to bottom. The bottom reinforcement layer 3 is laid on the slope 8, and the bottom of the middle nutrient matrix layer 2 is fixedly connected to the top of the bottom reinforcement layer 3. The surface protective layer 1 is fixedly connected to the top of the middle nutrient matrix layer 2. The top of the middle nutrient matrix layer 2 extends outside the blanket structure and is inserted into the top fixing block 4. The middle nutrient matrix layer 2 is detachably connected to the top fixing block 4 by multiple bolts 41. The top fixing block 4 is laid on the top of the slope 8 and fixedly connected to the slope 8 by multiple pre-embedded cones 5.

[0038] In this embodiment, the bottom reinforcement layer 3 is made of high-strength geogrid material and is connected to the middle layer through a hot-pressing composite process. The geogrid has high tensile strength and stability, which can enhance the overall structural strength of the slope protection blanket and prevent the slope protection blanket from sliding and deforming on the slope.

[0039] Specific Implementation Method Two: Combining Figures 1 to 12 This embodiment differs from specific embodiment one in that the surface protective layer 1 includes multiple transverse fiber woven strips 11 and multiple longitudinal fiber woven strips 12. The longitudinal fiber woven strips 12 are arranged equidistantly along the length of the slope 8. The multiple transverse fiber woven strips 11 are all disposed on the multiple longitudinal fiber woven strips 12, and are arranged equidistantly along the slope of the slope 8. Each transverse fiber woven strip 11 is fixedly connected to its corresponding multiple transverse fiber woven strips 11. The multiple transverse fiber woven strips 11 and the multiple longitudinal fiber woven strips 12 are woven to form a protective mesh structure with a perforated system. Other components and connection methods are the same as in specific embodiment one.

[0040] In this embodiment, both the transverse fiber woven strips 11 and the longitudinal fiber woven strips 12 are made of basalt fiber material, which has good wear resistance and environmental friendliness. The interlaced fiber woven strips can create a textured surface on the protective layer 1, which can effectively disperse the impact force of water flow and reduce the direct erosion of the slope by water flow. The thickness of this layer is 3-5mm, and the pore size formed by its interwoven fibers is moderate, which can ensure a certain degree of water permeability while preventing soil particle loss.

[0041] Specific implementation method three: Combining Figures 1 to 12 This embodiment differs from specific embodiment two in that the middle nutrient substrate layer 2 includes a permeable fabric 21, an ecological component, and a bottom water-retaining fabric 22. The permeable fabric 21 and the bottom water-retaining fabric 22 are arranged vertically opposite each other. Multiple longitudinally woven fiber strips 12 are laid on top of the permeable fabric 21 and fixedly connected to it. The ecological component is positioned between the permeable fabric 21 and the bottom water-retaining fabric 22, and is fixedly connected to both. The bottom end of the bottom water-retaining fabric 22 extends upward and wraps around the bottom end of the ecological component. The top ends of the bottom water-retaining fabric 22 and the top ends of the permeable fabric 21 both extend outside the blanket structure and are bonded together to form a connection. The connection is inserted into the top fixing block 4 and is detachably connected to the top fixing block 4 using bolts. Other components and connection methods are the same as in specific embodiment two.

[0042] Specific implementation method four: Combining Figures 1 to 12This embodiment differs from Specific Embodiment Three in that the ecological component includes N high-strength fiber frames 23 and N-1 water-conducting pipes 24, where N is a positive integer greater than 2. The N high-strength fiber frames 23 are arranged equidistantly on the bottom water-blocking cloth 22 along the slope direction of the slope 8, and each high-strength fiber frame 23 is fixedly connected to the bottom water-blocking cloth 22. Each high-strength fiber frame 23 is filled with an ecological unit 25. Each water-conducting pipe 24 is arranged between two adjacent high-strength fiber frames 23, and the length extension direction of each water-conducting pipe 24 is the same as that of the high-strength fiber frame 23. A water conveying unit is provided on each side of the water-conducting pipe 24, and the water-conducting pipe 24 is connected to two adjacent high-strength fiber frames 23 through two water conveying units. The water inlet of the water-conducting pipe 24 is connected to an external water source through a water supply pipe 6. Other components and connections are the same as in Specific Embodiment Three.

[0043] Specific implementation method five: Combining Figures 1 to 12 This embodiment differs from Specific Embodiment Four in that the water supply unit includes multiple water supply pipes 241, which are arranged equidistantly along the length of the water guide pipe 24. One end of each water supply pipe 241 is connected to the water guide pipe 24, and the other end is connected to the corresponding high-strength fiber frame 23. A porous permeable material column is inserted into the other end of the water supply pipe 241. One end of the porous permeable material column is connected to the water supply pipe 241, and the other end extends into the ecological unit 25. Other components and connections are the same as in Specific Embodiment Four.

[0044] Specific implementation method six: Combining Figures 1 to 12 This embodiment differs from Specific Embodiment Five in that the ecological unit 25 is a block structure made of humus, water-retaining agent, and organic fertilizer, and grass seeds are pre-buried in the ecological unit 25. Other components and connection methods are the same as in Specific Embodiment Five.

[0045] Specific implementation method seven: Combining Figures 1 to 12 This embodiment differs from Specific Embodiment Six in that multiple fiber beams 231 are arranged equidistantly along the length of the high-strength fiber frame 23. Each fiber beam 231 is integrally formed with two long sidewalls within the high-strength fiber frame 23 at both ends. The high-strength fiber frame 23 is divided into multiple ecological zones by the fiber beams 231, and each ecological zone corresponds to at least one water pipe 241. Other components and connection methods are the same as in Specific Embodiment Six.

[0046] Specific implementation method eight: Combining Figures 1 to 12This embodiment differs from specific embodiment seven in that the ecological unit 25 is divided into multiple ecological blocks, and each ecological block is arranged in an ecological area of ​​the high-strength fiber frame 23. The other components and connection methods of each ecological block with pre-buried grass seeds are the same as those in specific embodiment seven.

[0047] As described in Specific Embodiments 3 to 8, the high-strength fiber frame 23 is made of polylactic acid material, which has good strength and biodegradability. The humus soil in the ecological unit 25 is a mixture of peat soil, coconut fiber and pine bark, with a mass ratio of 4:1:1. The middle nutrient substrate layer 2 mainly provides sufficient nutrients and water for plant seed germination and seedling growth. At the same time, its loose structure is conducive to the penetration and growth of plant roots. Unlike the traditional middle nutrient substrate layer, this application also incorporates a water replenishment structure constructed by water pipe 24 and water delivery pipe 241, which can be manually replenished with water when rainfall is low to ensure the normal growth of vegetation.

[0048] The water supply pipe 6 in this application has two arrangement forms. One is an embedded water supply pipe arranged in the slope protection blanket. This water supply pipe 6 is a rubber hose structure and is directly connected to the water guide pipe 24 when the slope protection blanket is constructed. After the slope protection blanket is laid, the water supply pipe 6 is in a straight state. The other is a masonry water supply pipe constructed on the slope through a masonry structure. This water supply pipe 6 is a straight metal pipe structure. The straight pipe structure is embedded in the masonry structure, and the outer surface of the straight pipe has an extension section. Each extension section has a pipe connection joint, which is connected to the water guide pipe 24 in the slope protection blanket. The masonry structure can limit the slope protection blanket on both sides, ensuring the accuracy of the slope protection blanket laying and its wind resistance. When water needs to be replenished through the water supply pipe 6, a mobile water supply truck supplies water to the slope protection blanket through the water supply joint at the end of the water supply pipe 6. Water is supplied through the water supply pipe 6. After entering the water guide pipe 24, the water is transported to the corresponding ecological unit 25 through the water delivery pipe 241. Since a porous permeable material column is inserted at the other end of the water delivery pipe 241, the water flow rate can be effectively limited, which can effectively avoid the damage caused by the water flow impact to the ecological unit 25 due to the large instantaneous water volume. Since the water delivery rate of the water delivery pipe 241 is slower than the water supply rate, the water supply will remain in the water guide pipe 24 and then be continuously replenished through the water delivery pipe 241. During the water replenishment work, only the water delivery unit located on the lower side of the water guide pipe 24 is replenished. The water delivery unit on the upper side mainly works with the water guide pipe 24 to support the upper and lower high-strength fiber frames 23, ensuring the stability of the ecological component construction.

[0049] Specific implementation method nine: Combining Figures 1 to 12This embodiment differs from specific embodiment eight in that a slot 42 is machined in the middle of the side of the top fixing block 4 closest to the carpet structure. Multiple connecting through holes are equidistantly machined in the upper groove of the slot 42 along the length of the top fixing block 4. Multiple connecting threaded holes are also equidistantly machined in the upper groove of the slot 42 along the length of the top fixing block 4, with each connecting through hole corresponding to a connecting threaded hole coaxially. The bolt segment of each bolt 41 passes through a connecting through hole and a connecting portion sequentially before being inserted into the corresponding connecting threaded hole and threadedly fastened to the top fixing block 4. Multiple anchoring through holes 43 are equidistantly machined on the top of the top fixing block 4 away from the carpet structure, along its length. The tip of each embedded cone 5 passes through an anchoring through hole 43 and is inserted into the top of the slope 8, whereby the embedded cone 5 is fastened to the slope 8 under soil compression. Other components and connection methods are the same as in specific embodiment eight.

[0050] In this embodiment, the top fixing block 4 is used to fix the slope protection blanket at the top, ensuring the stability of its laying.

[0051] Specific Implementation Method Ten: Combining Figures 1 to 13 This embodiment differs from specific embodiment nine in that, after the top of the permeable fabric 21 extends downward and wraps around the bottom of the ecological component, its extension continues to extend horizontally and is bonded to the bottom extension of the bottom water-blocking fabric 22 to form a bottom fixing part. The bottom fixing part is fixedly connected to the lower part of the slope surface in the slope body 8 by multiple embedded nails. Other components and connection methods are the same as in specific embodiment nine.

[0052] In this embodiment, considering that the bottom of the slope protection blanket is easily separated from the slope under the action of water buoyancy, which leads to the failure of the slope protection blanket, a fixing part is added to the bottom for nailing to fix the bottom of the slope protection blanket.

[0053] The present invention has been disclosed above with reference to preferred embodiments, but it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

[0054] Working principle

[0055] When rainfall occurs, the uneven texture of the surface protective layer 1 first disperses and buffers the water flow, reducing its velocity and impact, and minimizing erosion of the slope soil. Simultaneously, the water slowly permeates through the pores of the surface protective layer 1 into the middle nutrient substrate layer 2. The water-retaining agent in the middle nutrient substrate layer 2 absorbs and stores some of the water, providing a water source for plant growth. Excess water is slowly discharged through the pores of the bottom reinforcement layer 3, preventing water accumulation from damaging the slope protection blanket and the slope surface.

[0056] The high-strength fiber frame 23 creates small water-retaining spaces on the slope, which further slows down the water flow and promotes sediment deposition, while providing a good growth space for plant roots. Plant seeds germinate and grow under the nourishment of nutrients and water in the middle nutrient substrate layer 2, and the roots gradually penetrate through the high-strength fiber frame 23 and the bottom reinforcement layer 3, taking root in the slope soil, forming a stable protection system that combines plants and slope protection blanket;

[0057] When the area receives little rainfall, the water supply system consisting of the main water supply pipe 6, the water guide pipe 24, and the water conveyance pipe 24 can be used to replenish the water for the plants. When replenishing water, slow-release fertilizer capsules can be added to slowly release fertilizer as the water penetrates, providing continuous nutrients for plant growth, ensuring the healthy growth of vegetation, and thus further enhancing the protective effect and ecological restoration capacity of the slope protection blanket.

Claims

1. An erosion gully revetment mat, characterised in that: The slope protection blanket includes a surface protection layer (1), a middle nutrient matrix layer (2), a bottom reinforcement layer (3), and a top fixing block (4). The surface protection layer (1), the middle nutrient matrix layer (2), and the bottom reinforcement layer (3) are stacked sequentially from top to bottom. The bottom reinforcement layer (3) is laid on the slope (8), and the bottom of the middle nutrient matrix layer (2) is fixedly connected to the top of the bottom reinforcement layer (3). The surface protection layer (1) is fixedly connected to the top of the middle nutrient matrix layer (2). The top of the middle nutrient matrix layer (2) extends to the outside of the blanket structure and is inserted into the top fixing block (4). The middle nutrient matrix layer (2) is detached and connected to the top fixing block (4) by multiple bolts (41). The top fixing block (4) is laid on the top of the slope (8) and fixedly connected to the slope (8) by multiple pre-embedded cones (5).

2. An erosion gully revetment mat according to claim 1, characterised in that: The surface protective layer (1) includes multiple transverse fiber braided strips (11) and multiple longitudinal fiber braided strips (12). Multiple longitudinal fiber braided strips (12) are arranged equidistantly along the length extension direction of the slope (8). Multiple transverse fiber braided strips (11) are all set on multiple longitudinal fiber braided strips (12). Multiple transverse fiber braided strips (11) are arranged equidistantly along the slope extension direction of the slope (8). Each transverse fiber braided strip (11) is fixedly connected to the corresponding multiple transverse fiber braided strips (11). Multiple transverse fiber braided strips (11) and multiple longitudinal fiber braided strips (12) are woven to form a protective mesh structure with a pore system.

3. An erosion gully revetment mat according to claim 2, characterised in that: The middle nutrient substrate layer (2) includes a permeable cloth (21), an ecological component and a bottom water-blocking cloth (22). The permeable cloth (21) and the bottom water-blocking cloth (22) are arranged opposite each other. Multiple longitudinally woven fiber strips (12) are laid on the top of the permeable cloth (21) and fixedly connected to the permeable cloth (21). The ecological component is set between the permeable cloth (21) and the bottom water-blocking cloth (22), and the ecological component is fixedly connected to both the permeable cloth (21) and the bottom water-blocking cloth (22). The bottom end of the bottom water-blocking cloth (22) extends upward and wraps around the bottom end of the ecological component. The top end of the bottom water-blocking cloth (22) and the top end of the permeable cloth (21) extend to the outside of the blanket structure and form a connection by bonding. The connection is inserted into the top fixing block (4) and is detached and connected to the top fixing block (4) by bolts.

4. An erosion gully revetment mat according to claim 3, characterised in that: The ecological component includes N high-strength fiber frames (23) and N-1 water pipes (24), where N is a positive integer greater than 2. The N high-strength fiber frames (23) are arranged equidistantly on the bottom water-blocking cloth (22) along the slope extension direction of the slope (8), and each high-strength fiber frame (23) is fixedly connected to the bottom water-blocking cloth (22). Each high-strength fiber frame (23) is filled with an ecological unit (25). Each water pipe (24) is arranged between two adjacent high-strength fiber frames (23), and the length extension direction of each water pipe (24) is the same as the length extension direction of the high-strength fiber frame (23). A water conveying unit is provided on each side of the water pipe (24), and the water pipe (24) is connected to two adjacent high-strength fiber frames (23) through the two water conveying units. The water inlet end of the water pipe (24) is connected to an external water source through a water supply pipe (6).

5. The erosion gully slope protection blanket according to claim 4, characterized in that: The water supply unit includes multiple water supply pipes (241), and the multiple water supply pipes (241) are arranged equidistantly along the length extension direction of the water guide pipe (24). One end of each water supply pipe (241) is connected to the water guide pipe (24), and the other end of each water supply pipe (241) is connected to the corresponding high-strength fiber frame (23). A porous permeable material column is inserted into the other end of the water supply pipe (241). One end of the porous permeable material column is connected to the water supply pipe (241) in which it is located, and the other end of the porous permeable material column extends into the ecological unit (25).

6. The erosion gully slope protection blanket according to claim 5, characterized in that: Ecological unit (25) is a block structure made of humus, water-retaining agent and organic fertilizer, and grass seeds are pre-buried in ecological unit (25).

7. The erosion gully slope protection blanket according to claim 4, characterized in that: In the high-strength fiber frame (23), multiple fiber beams (231) are arranged at equal intervals along the length extension direction of the high-strength fiber frame (23), and the two ends of each fiber beam (231) are integrally formed with the two long side frames in the high-strength fiber frame (23). The high-strength fiber frame (23) is divided into multiple ecological zones by multiple fiber beams (231), and each ecological zone is corresponding to at least one water pipe (241).

8. The erosion gully slope protection blanket according to claim 7, characterized in that: The ecological unit (25) is divided into multiple ecological blocks, and each ecological block is arranged in an ecological zone of the high-strength fiber frame (23), and each ecological block is pre-buried with grass seeds.

9. An erosion gully protection blanket according to claim 4 or 7, characterized in that: The top fixing block (4) has a slot (42) machined in the middle of the side near the blanket structure. Multiple connecting through holes are machined at equal intervals along the length extension direction of the top fixing block (4) in the upper groove of the slot (42). Multiple connecting threaded holes are machined at equal intervals along the length extension direction of the top fixing block (4) in the upper groove of the slot (42). Each connecting through hole is coaxially corresponding to a connecting threaded hole. The bolt segment of each bolt (41) passes through a connecting through hole and the connecting part in sequence and is inserted into the corresponding connecting threaded hole and threadedly fastened to the top fixing block (4). The top of the top fixing block (4) away from the blanket structure has multiple anchoring through holes (43) machined at equal intervals along the length extension direction of the top fixing block (4). The tip of each pre-embedded cone (5) passes through an anchoring through hole (43) and is inserted into the top of the slope (8). The pre-embedded cone (5) is fastened to the slope (8) under soil compression.

10. The erosion gully slope protection blanket according to claim 3, characterized in that: After the top of the permeable cloth (21) extends downward and wraps around the bottom of the ecological component, its extension continues to extend horizontally and is fixed to the bottom extension of the bottom water-blocking cloth (22) by adhesive bonding to form a bottom fixing part. The bottom fixing part is fixedly connected to the lower part of the slope surface in the slope (8) by multiple embedded nails.

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