Vegetation revetment mat

Abstract

This invention relates to the field of slope protection technology, specifically to a vegetation slope protection blanket, comprising an expandable fixing blanket. The expandable fixing blanket includes a grid structure formed by stitching together a flexible permeable substrate. The grid includes alternating cement chambers and pre-drilled holes. The cement chambers are filled with hydraulic expandable cementitious material. The expandable fixing blanket contains grid strength reinforcement components and vegetation nails. The vegetation nails penetrate the pre-drilled holes and are anchored to the slope surface. Each vegetation nail includes a seed chamber with root outlets on its sidewalls. A fixing post is connected to the bottom of the seed chamber. The fixing post has radially expandable anti-detachment barbs on its surface and a pointed tip at its bottom. The flexible permeable substrate, rigid grid reinforcement, and bio-anchoring unit of the slope protection blanket are all prefabricated in a standardized manner in a factory. On-site construction requires only three steps, culminating in water spraying to activate the expansion reaction. Compared to traditional masonry slope protection, this process eliminates reliance on large machinery, improves overall work efficiency, and reduces labor costs.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, specifically a vegetation slope protection blanket. Background Technology

[0002] Vegetated ecological slope protection is a slope protection technology that integrates basic knowledge from disciplines such as engineering mechanics, soil science, ecology, and botany to support slopes or side slopes, forming a comprehensive slope protection system composed of plants or engineering and plants. After the slope is excavated, plants are planted to protect and reinforce the slope surface through the interaction between plants and rock and soil. This method not only meets the requirements for slope surface stability but also restores the damaged natural ecological environment, making it an effective slope protection and stabilization method.

[0003] When planting vegetation on existing ecological slope protection, due to the large slope, a series of steps such as digging pits, filling, and watering are required on the slope surface. At the same time, it is also necessary to calculate the spacing between plants to avoid overcrowding and hindering their normal growth. This requires professionals to divide the planting intervals on-site, making the construction of ecological slope protection complex and requiring a large amount of manpower. Summary of the Invention

[0004] To address the aforementioned issues, this application proposes a vegetation slope protection blanket.

[0005] A vegetation slope protection blanket includes an expansion and fixing blanket, which includes a grid structure formed by stitching together a flexible permeable substrate. The grid includes alternating cement chambers and pre-drilled holes. The cement chambers are filled with hydraulic expansion cementitious material. The expansion and fixing blanket is equipped with grid strength reinforcement components inside.

[0006] Flexible permeable substrate has functions such as isolation, filtration, drainage, and reinforcement. It can prevent soil particle loss and enhance the stability of the slope protection blanket and the soil. Materials such as engineering plastic grid, carbon fiber mesh woven strip, and geotextile can be selected. This application selects geotextile based on engineering cost.

[0007] Hydraulic expansive cementitious materials refer to cementitious substances that undergo a chemical reaction upon contact with water and produce volume expansion. This application selects expansive cement.

[0008] The mesh strength reinforcement is designed to form a mesh framework with cement to improve tensile strength. It can be made of engineering plastic grid, carbon fiber mesh woven tape, steel wire, etc. This application uses steel wire.

[0009] Furthermore, it also includes vegetation nails, which penetrate pre-drilled holes and are anchored to the slope. Each vegetation nail includes a seed chamber with root outlets on its sidewalls. A fixed post is connected to the bottom of the seed chamber. The surface of the fixed post is equipped with radially opening anti-detachment barbs, and the bottom of the fixed post has a sharp point to reduce construction difficulty and improve construction efficiency.

[0010] Furthermore, the seed chamber is filled with nutrient soil and plant seeds. The nutrient soil and plant seeds together form the later growth part of the vegetation. The nutrient soil provides the necessary growth conditions for the early growth of the seeds. When the seeds grow into vegetation, the roots absorb nutrients through the root outlet, and the nutrient soil completes its mission. At the same time, the vegetation can be adjusted according to local climate conditions and design requirements.

[0011] Furthermore, the top of the seed bin is provided with a threaded seed bin cover groove, and also includes a seed bin cover. The seed bin cover is screwed to the top of the seed bin through the threaded seed bin cover groove. A partition column is provided inside the seed bin cover, which divides the upper surface of the seed bin cover into multiple seedling outlets. The seedling outlets serve as the main outlets for vegetation photosynthesis and vegetation growth.

[0012] Furthermore, the diameter of the seed bin cover is larger than the reserved hole, and when the seed bin cover is connected to the seed bin, it covers the hole and presses the geotextile tightly.

[0013] Furthermore, the hydraulic expansive cementitious material uses expansive cement, and the flexible permeable substrate uses geotextile.

[0014] Furthermore, the grid strength reinforcement uses steel wire, which together with the cured expansive cement forms a "well"-shaped grid frame.

[0015] Furthermore, it also includes stitching lines that divide the cement silo into independent square units. These stitching lines are used to splice together the various parts of the slope protection blanket, stitching the geotextile into square silos, allowing the expansive cement to be stored smoothly within each silo, ensuring the integrity and strength of the overall structure.

[0016] Furthermore, the anti-detachment barbs initially contract towards the center of the fixed post. When the expansive cement expands upon contact with water, causing the vegetation nails to move slightly outward from the slope, the barbs open radially due to soil resistance, forming an anchor.

[0017] The anti-loosening barbs are distributed around the fixed posts. When the vegetation nails are driven into the slope, the anti-loosening barbs tighten towards the center of the fixed posts due to the force. After the vegetation nails and the expansion fixing blanket, and the expansion fixing blanket and the slope are tightly attached, the expansion cement inside the expansion fixing blanket expands due to the moisture by spraying water. The cross-section of the cement blanket develops from thin to thick. Since the seed box cover is larger than the reserved hole of the vegetation nail, it restricts the vegetation nail. The expansion fixing blanket drives the vegetation nail to move slightly in the opposite direction of the slope surface. At this time, the anti-loosening barbs that tighten towards the center of the fixed posts are pushed open in all directions due to the opposite force, and are tightly anchored to the soil to prevent the expansion fixing blanket from loosening, thus forming a solid slope protection structure.

[0018] Furthermore, the root outlets are square holes distributed on the side walls of the seed chamber to ensure that the plant seeds inside the seed chamber germinate and take root.

[0019] The method for using a vegetation slope protection blanket includes the following steps:

[0020] S1: Manufacturing

[0021] (1) Make geotextile, reserve holes on the geotextile according to the design requirements, and splice the geotextile into a rough shape of the slope protection blanket of the required size by stitching.

[0022] (2) Divide the cement bin and seed bin areas on the slope protection blanket, fill the cement bin with expansive cement, fill the seed bin with nutrient soil and place the seeds, and then install the seed bin cover.

[0023] (3) Steel wires are laid inside the slope protection blanket to enhance its strength and toughness.

[0024] (4) Make vegetation nails, assembling the fixed posts, anti-loosening barbs and tops into shape.

[0025] S2: On-site installation

[0026] (1) Transport the prepared slope protection blanket to the construction site.

[0027] (2) Depending on the slope conditions, unfold the slope protection blanket and lay it on the slope so that the reserved holes are aligned with the corresponding positions on the slope.

[0028] (3) Insert the vegetation nail into the slope soil through the reserved hole. The sharp design of the tip makes it easy to insert. The anti-loosening barbs prevent the vegetation nail from being pulled out, thus completing the fixation of the slope protection blanket.

[0029] S3: Post-treatment maintenance

[0030] (1) After installation, spray water to moisten the slope protection blanket, so that the expansive cement will expand and adhere tightly to the slope surface, while providing water for seed germination.

[0031] (2) Regularly observe the growth of vegetation and carry out appropriate watering, fertilization and other maintenance work as needed to ensure healthy growth of vegetation and realize the ecological slope protection function of the slope protection blanket.

[0032] Compared with the prior art, this application has the following beneficial effects:

[0033] The flexible permeable substrate, rigid mesh reinforcement, and bio-anchoring units of the slope protection blanket are all prefabricated in a standardized manner in the factory. On-site construction only requires three steps: laying out the blanket, aligning the anchor holes, and inserting the vegetation nails. Finally, water is sprayed to activate the expansion reaction. Compared with traditional masonry slope protection, this process eliminates reliance on large machinery, improves overall work efficiency, and reduces labor costs.

[0034] The mechanical thrust generated by the expansion of hydraulic expansive cementitious materials upon contact with water drives the vegetation to slightly shift outward from the slope, forcing the anti-loosening barbs to open radially under soil resistance and form a permanent anchor. Simultaneously, the plant roots within the seedbed penetrate the soft soil layer through their root outlets, forming a dual reinforcement system together with the "well"-shaped grid framework created by the expansive cement. Furthermore, the stability continuously increases as the vegetation grows, achieving synergy between engineering protection and ecological restoration.

[0035] The threaded seed trough cover design allows for the replacement of vegetation types as needed, providing different green slope protection solutions for different engineering scenarios and improving applicability. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A top view of an expansive cement vegetation slope protection blanket;

[0038] Figure 2 Side view of expansive cement vegetation slope protection blanket;

[0039] Figure 3 Sectional view a for the installation of expansive cement vegetation slope protection blanket;

[0040] Figure 4 Sectional view b for the installation of expansive cement vegetation slope protection blanket;

[0041] Figure 5 This is a cross-sectional view of the vegetation nail structure.

[0042] Figure 6 This is a top view of the vegetation nail.

[0043] In the picture:

[0044] 1. Geotextile;

[0045] 2. Reserved holes;

[0046] 3. Sutures;

[0047] 4. Cement silo;

[0048] 5. Expansion cement;

[0049] 6. Seed bin cover;

[0050] 7. Divider column;

[0051] 8. Emergence point;

[0052] 9. Threaded seed chamber cover groove;

[0053] 10. Root opening;

[0054] 11. Seed storage;

[0055] 12. Nutrient soil;

[0056] 13. Fix the columns;

[0057] 14. Prevents barbs from detaching;

[0058] 15. Top-notch;

[0059] 16. Vegetation nails;

[0060] 17. Steel wire. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0062] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0063] Example 1

[0064] like Figure 1-4 As shown, a vegetation slope protection blanket includes an inflatable fixing blanket, which includes a mesh structure formed by stitching together a flexible permeable substrate;

[0065] Flexible permeable substrate has functions such as isolation, filtration, drainage, and reinforcement. It can prevent soil particle loss and enhance the stability of the slope protection blanket and the soil. Materials such as engineering plastic grid, carbon fiber mesh woven strip, and geotextile 1 can be selected. In this embodiment, geotextile 1 is selected based on engineering cost.

[0066] The grid includes alternating cement bins 4 and reserved holes 2. The reserved holes 2 are circular holes formed by stitching together two layers of geotextile 1 around the perimeter to facilitate the insertion and fixing of vegetation nails 16.

[0067] The cement silo 4 is filled with hydraulic expansive cementitious material, and the expansion fixing blanket is provided with a grid strength reinforcement. The hydraulic expansive cementitious material refers to a cementitious substance that reacts chemically with water and produces volume expansion. In this embodiment, expansive cement 5 is selected.

[0068] The mesh strength reinforcement is used to form a mesh framework with the cement to improve tensile strength. It can be made of engineering plastic grid, carbon fiber mesh woven belt, steel wire 17, etc. In this embodiment, steel wire 17 is selected.

[0069] It also includes a vegetation nail 16, which passes through the pre-drilled hole 2 and is anchored to the slope. The vegetation nail 16 includes a seed chamber 11, the side wall of which has a root outlet 10. The bottom of the seed chamber 11 is connected to a fixed column 13. The surface of the fixed column 13 is provided with radially opening anti-loosening barbs 14, and the bottom end of the fixed column 13 is provided with a tip 15.

[0070] Example 2

[0071] like Figure 1-6 As shown, a vegetation slope protection blanket includes an expansion fixing blanket, which includes a grid structure formed by stitching together a flexible permeable substrate. The grid includes alternating cement chambers 4 and reserved holes 2. The cement chambers 4 are filled with hydraulic expansion cementitious material. The expansion fixing blanket is provided with grid strength reinforcement inside.

[0072] Flexible permeable substrate has functions such as isolation, filtration, drainage, and reinforcement. It can prevent soil particle loss and enhance the stability of the slope protection blanket and the soil. Materials such as engineering plastic grid, carbon fiber mesh woven strip, and geotextile 1 can be selected. In this embodiment, geotextile 1 is selected based on engineering cost.

[0073] Hydraulic expansive cementitious materials refer to cementitious substances that undergo a chemical reaction upon contact with water and produce volume expansion. In this embodiment, expansive cement 5 is selected.

[0074] The mesh strength reinforcement is used to form a mesh framework with cement to improve tensile strength. It can be made of engineering plastic grid, carbon fiber mesh woven tape, steel wire 17, etc. In this embodiment, steel wire 17 is selected.

[0075] It also includes a vegetation nail 16, which passes through the pre-drilled hole 2 and is anchored to the slope. The vegetation nail 16 includes a seed chamber 11, the side wall of which has a root outlet 10. The bottom of the seed chamber 11 is connected to a fixed column 13. The surface of the fixed column 13 is provided with radially opening anti-loosening barbs 14, and the bottom end of the fixed column 13 is provided with a tip 15.

[0076] The seed chamber 11 is filled with nutrient soil 12 and plant seeds. The nutrient soil 12 and plant seeds form the later growth part of the vegetation nail 16. The nutrient soil 12 provides the necessary growth conditions for the early growth of the seeds. When the seeds grow into vegetation, the roots absorb nutrients through the root outlet 10. The nutrient soil 12 has completed its mission. At the same time, the vegetation can be adjusted according to local climate conditions and design requirements.

[0077] The seed chamber 11 is provided with a threaded seed chamber cover groove 9 at its top and also includes a seed chamber cover 6. The seed chamber cover 6 is screwed to the top of the seed chamber 11 through the threaded seed chamber cover groove 9. A partition column 7 is provided inside the seed chamber cover 6, which divides the upper surface of the seed chamber cover 6 into multiple seedling outlets 8. The seedling outlets serve as the main outlets for vegetation photosynthesis and vegetation growth.

[0078] The diameter of the seed chamber cover 6 is larger than the reserved hole 2. When the seed chamber cover 6 is connected to the seed chamber 11, it covers the hole and presses the geotextile 1 tightly.

[0079] The hydraulic expansive cementitious material is expansive cement 5, and the flexible permeable substrate is geotextile 1.

[0080] The grid strength reinforcement is made of steel wire 17, which together with the cured expansive cement 5 forms a grid frame in the shape of a "well".

[0081] It also includes sutures 3, which divide the cement silo 4 into independent square units.

[0082] The anti-detachment barbs 14 initially shrink toward the center of the fixed column 13. When the expansive cement 5 expands upon contact with water, causing the vegetation nails 16 to move slightly outward from the slope, the barbs open radially due to soil resistance, forming an anchor.

[0083] The root outlet 10 is a square hole distributed on the side wall of the seed chamber 11 to ensure that the plant seeds in the seed chamber germinate and take root.

[0084] Example 3

[0085] The method for using a vegetation slope protection blanket includes the following steps:

[0086] S1: Manufacturing

[0087] (1) Make geotextile 1, reserve holes 2 on geotextile 1 according to design requirements, and splice geotextile 1 into a slope protection blanket prototype of the required size through sewing line 3.

[0088] (2) Divide the area into cement bin 4 and seed bin 11 on the slope protection blanket. Fill the cement bin 4 with expansion cement 5 and the seed bin 11 with nutrient soil 12 and place the seeds. Then install the seed bin cover 6.

[0089] (3) Steel wires 17 are arranged inside the slope protection blanket to enhance its strength and toughness.

[0090] (4) Make vegetation nails 16, and assemble the fixed post 13, anti-detachment barbs 14 and tip 15 into shape.

[0091] S2: On-site installation

[0092] (1) Transport the prepared slope protection blanket to the construction site.

[0093] (2) Depending on the slope conditions, unfold the slope protection blanket and lay it on the slope so that the reserved hole 2 is aligned with the corresponding position on the slope.

[0094] (3) Insert the vegetation nail 16 into the slope soil through the reserved hole 2. The sharp design of the tip 15 is used to insert it smoothly. The anti-loosening barb 14 is used to prevent the vegetation nail from being pulled out, thus completing the fixation of the slope protection blanket.

[0095] S3: Post-treatment maintenance

[0096] (1) After installation, spray water to moisten the slope protection blanket, so that the expansion cement 5 will expand and adhere tightly to the slope surface, while providing water for seed germination.

[0097] (2) Regularly observe the growth of vegetation and carry out appropriate watering, fertilization and other maintenance work as needed to ensure healthy growth of vegetation and realize the ecological slope protection function of the slope protection blanket.

[0098] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0099] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vegetation slope protection blanket, characterized in that: The invention includes an expansion fixing blanket, which includes a grid structure formed by stitching together a flexible permeable substrate. The grid includes alternating cement chambers (4) and pre-drilled holes (2). The cement chambers (4) are filled with hydraulic expansion cementitious material. The expansion fixing blanket is provided with a grid strength reinforcing member inside. It also includes a vegetation nail (16), which penetrates the pre-drilled hole (2) and is anchored to the slope. The vegetation nail (16) includes a seed chamber (11), the side wall of which has a root outlet (10), and the bottom of the seed chamber (11) is connected to a fixed column (13). The surface of the fixed column (13) is provided with radially opening anti-detachment barbs (14), and the bottom end of the fixed column (13) is provided with a tip (15).

2. The vegetation slope protection blanket according to claim 1, characterized in that: The seed bin (11) is provided with a threaded seed bin cover groove (9) at the top and also includes a seed bin cover (6). The seed bin cover (6) is screwed to the top of the seed bin (11) through the threaded seed bin cover groove (9). A partition column (7) is provided inside the seed bin cover (6). The partition column (7) divides the upper surface of the seed bin cover (6) into multiple seedling outlets (8).

3. The vegetation slope protection blanket according to claim 2, characterized in that: The diameter of the seed bin cover (6) is larger than the reserved hole (2). When the seed bin cover (6) is connected to the seed bin (11), it covers the hole and presses the geotextile (1) tightly.

4. The vegetation slope protection blanket according to claim 1, characterized in that: The hydraulic expansive cementitious material is expansive cement (5), and the flexible permeable substrate is geotextile (1).

5. The vegetation slope protection blanket according to claim 4, characterized in that: The mesh strength reinforcement is made of steel wire (17), and the steel wire (17) together with the cured expansive cement (5) form a "well" shaped mesh frame.

6. The vegetation slope protection blanket according to claim 5, characterized in that: It also includes sutures (3) that divide the cement silo (4) into independent square units.

7. The vegetation slope protection blanket according to claim 4, characterized in that: The anti-detachment barbs (14) initially shrink toward the center of the fixed column (13). When the expansive cement (5) expands with water and causes the vegetation nails (16) to move slightly outward from the slope, the barbs open radially due to soil resistance to form an anchor.

8. The vegetation slope protection blanket according to claim 1, characterized in that: The root outlet (10) is a square hole distributed on the side wall of the seed bin (11).

Images