Greening structure suitable for steep soil slope

Abstract

The utility model relates to a greening structure suitable for a steep soil slope. The method is suitable for the technical field of slope greening engineering. According to the technical scheme, according to the greening structure suitable for the steep soil slope, the surface of the steep soil slope is excavated to form a slope protection construction face, the slope protection construction face is covered with a slope protection structure, and the greening structure comprises drainage holes which are drilled in a slope body of the steep soil slope, and the multiple drainage holes are arranged at intervals in a multi-layer mode along the slope face of the slope; the planting holes are drilled in the slope surface of the steep soil slope, the multiple planting holes communicate with the multiple drainage holes in a one-to-one correspondence mode, and the ends, away from the drainage holes, of the planting holes penetrate through the slope protection structure; the planting tanks are arranged in the planting holes, are used for planting green plants and can discharge excessive water inside; and the drainage floral tube is arranged in the drainage hole and can collect surplus water in the slope body and guide the water into the planting tank so as to irrigate green plants.

Description

A greening structure suitable for steep soil slopes Technical Field

[0001] This utility model relates to the field of slope greening engineering technology, and in particular to a greening structure suitable for steep soil slopes. Background Technology

[0002] In soil slope excavation and support engineering, for steep soil slopes, measures such as systematic anchoring, systematic drainage pipes, and shotcrete are usually used for protection after excavation. However, this traditional protection method has obvious drawbacks: its surface hardening treatment prevents the growth of green plants, thus failing to achieve slope greening and meet ecological and environmental protection requirements.

[0003] To achieve slope greening, the conventional approach is to install frame beams on steep soil slopes and carry out greening operations within the frame beams. However, the construction process for frame beams is complex, requiring multiple steps such as formwork erection, rebar tying, and concrete pouring, resulting in a long construction period. This not only increases the project's time cost but also raises the overall project cost.

[0004] Therefore, a solution is needed that can both ensure slope stability and achieve rapid, low-cost greening. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a greening structure suitable for steep soil slopes, addressing the aforementioned problems.

[0006] The technical solution adopted in this utility model is: a greening structure suitable for steep soil slopes, wherein the surface of the steep soil slope is excavated to form a slope protection construction surface, and a slope protection structure is provided on the slope protection construction surface, including:

[0007] Drainage holes are drilled inside the slope of steep soil slopes, with multiple drainage holes arranged at intervals in multiple levels along the slope surface.

[0008] Planting holes are drilled on the slope surface of steep soil slopes. Multiple planting holes are connected to multiple drainage holes one by one. The ends of the planting holes that are away from the drainage holes penetrate the slope protection structure.

[0009] Planting containers, placed inside planting holes, are used to plant green plants and can drain excess water from inside.

[0010] Drainage pipes, installed inside drainage holes, can collect excess water from inside the slope and guide it into planting containers to irrigate green plants.

[0011] By using the above-mentioned technical means, multiple planting holes are opened on the slope surface, and planting tanks are installed in the planting holes. The planting tanks are used to achieve slope greening, breaking through the limitations of the hardened layer. By opening multiple drainage holes inside the slope and distributing them in multiple layers, excess water inside the slope can enter the drainage pipes of the drainage holes and be diverted to the planting tanks to provide natural irrigation for the green plants.

[0012] In some embodiments, the planting tank includes a top cover, nutrient soil, a first geotextile, and a tank body. The surface of the tank body is provided with a plurality of drainage holes. The interior of the tank body is filled with nutrient soil. The first geotextile is provided between the nutrient soil and the inner wall of the tank body. The green plants are planted inside the nutrient soil. The top cover is detachably installed at the end of the tank body near the slope. The green plants are exposed on the slope through the through holes on the top cover. The end of the tank body away from the slope is separated from the output end of the drainage flower pipe by the first geotextile.

[0013] In some embodiments, a geomembrane is provided between the planting hole and the planting container, so that at least a portion of the water discharged into the planting hole by the drainage pipe can be retained to irrigate the green plants.

[0014] In some embodiments, the nutrient soil is formed by mixing soil with compound fertilizer.

[0015] In some embodiments, both the drainage pipe and the tank are made of cylindrical PVC pipe.

[0016] In some embodiments, the surface of the drainage pipe is provided with a plurality of seepage holes, the drainage pipe is arranged at an angle, and the elevation of the end of the drainage pipe near the slope is lower than the elevation of the end away from the slope, so that water inside the slope flows into the drainage pipe through the seepage holes and can flow naturally into the planting tank under the action of gravity.

[0017] In some embodiments, a second geotextile is laid between the outer wall of the drainage pipe and the inner wall of the drainage hole.

[0018] In some embodiments, the slope protection structure adopts an anchor bolt, wire mesh, and shotcrete protection structure.

[0019] The beneficial effects of this utility model are:

[0020] 1. By installing drainage pipes in steep soil slopes, groundwater seeping or accumulating within the slope and surface infiltration water can be effectively collected. The drainage pipes are connected to planting containers, allowing the collected water to be guided into the containers to irrigate the plants, thus forming a passive ecological automatic irrigation system. This method effectively reduces the frequency of manual irrigation, lowers subsequent maintenance costs, and improves water resource utilization by utilizing natural water sources to irrigate plants. It also increases vegetation coverage and survival rate, significantly improving the green landscape effect of the slope.

[0021] 2. The drainage pipes in this application not only provide excess water to the planting tanks within the slope, but more importantly, as a crucial component of the slope drainage system, they function to remove excess water from the slope. By promptly draining excess water from the slope, pore water pressure is reduced, mitigating erosion caused by rainwater infiltration and lowering the risk of landslides. Simultaneously, combined with a multi-tiered drainage network, a three-dimensional drainage system is formed, improving overall drainage efficiency and achieving a better soil and water conservation effect, thereby significantly enhancing the anti-slide capacity and long-term stability of steep soil slopes.

[0022] 3. In this application, the planting tanks and drainage pipes are designed in a modular structure, and both can be prefabricated in the factory. On-site installation only requires drilling. Compared to traditional concrete frame beams, this application eliminates the need for complex procedures such as formwork, reinforcement binding, and pouring, significantly shortening the construction period and reducing construction difficulty and project cost. Furthermore, the modular structure breaks through the dependence of traditional greening structures on construction conditions, expanding its applicability. Attached Figure Description

[0023] Figure 1 is a cross-sectional structural diagram of this application.

[0024] Figure 2 is a partial detail view of this application.

[0025] Figure 3 is an exploded view of the planting tank in this application.

[0026] Figure 4 is a schematic diagram of the drainage pipe in this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Green plants; 2. Planting tank; 3. Geomembrane; 4. Planting hole; 5. Drainage pipe; 6. Second geotextile; 7. Drainage hole; 8. Steep soil slope; 9. Slope protection construction surface; 10. Slope protection structure; 201. Tank body; 202. Drainage hole; 203. First geotextile; 204. Nutrient soil; 205. Top cover; 501. Seepage hole.

[0029] This specification includes references to "one embodiment" or "implementation". The use of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.

[0030] "First," "second," etc. As used in this article, these terms serve as labels for the nouns preceding them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.).

[0031] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0033] Example 1:

[0034] Referring to Figures 1 to 4, this embodiment is a greening structure suitable for steep soil slopes. A slope protection construction surface 9 is formed by excavation on the surface of the steep soil slope 8. A slope protection structure 10 is installed on the slope protection construction surface 9. The greening structure is located inside the steep soil slope 8 and at least partially penetrates the slope protection structure 10 to connect with the slope surface. The greening structure includes drainage holes 7, planting holes 4, planting pots 2, and drainage pipes 5. Drilling holes 7 are formed in the slope protection construction surface 9 to form drainage holes 7 inside the slope body of the steep soil slope 8 and planting holes 4 on the slope surface of the steep soil slope 8. Multiple drainage holes 7 are arranged at multiple levels along the slope surface, so that multiple drainage holes 7 are located at different elevations inside the slope body. Multiple planting holes 4 are connected to multiple drainage holes 7 in a one-to-one correspondence. The ends of the planting holes 4 away from the drainage holes 7 penetrate the slope protection structure 10. Drainage pipes 5 are embedded in the drainage holes 7, and the drainage pipes 5 can collect excess water inside the slope body. Planting holes 4 are fitted with planting tanks 2, which are used to plant green plants 1. Excess water in the slope is diverted to the planting tanks 2 through drainage pipes 5 to irrigate the green plants 1. The planting tanks 2 can drain excess water from their interior.

[0035] By setting multiple drainage holes 7 at different heights on the steep soil slope 8, a multi-layered drainage network is formed. This layout can effectively remove water accumulated inside the slope, reduce pressure on the slope, and improve its anti-sliding capacity.

[0036] In some implementations, as shown in Figure 3, the planting tank 2 includes a top cover 205, nutrient soil 204, a first geotextile 203, and a tank body 201. The surface of the tank body 201 is provided with multiple drainage holes 202. The inside of the tank body 201 is filled with nutrient soil 204. The first geotextile 203 is provided between the nutrient soil 204 and the inner wall of the tank body 201. Green plants 1 are planted inside the nutrient soil 204. The top cover 205 is detachably installed at the end of the tank body 201 near the slope. The green plants 1 are exposed on the slope through the through holes on the top cover 205. The end of the tank body 201 away from the slope is separated from the output end of the drainage flower pipe 5 by the first geotextile 203.

[0037] By providing drainage holes 202 on the surface of the tank 201, excess water inside the tank 201 can be drained in a timely manner, preventing water accumulation that could lead to root rot. The detachable connection between the top cover 205 and the tank 201 facilitates later maintenance, including replanting surviving seedlings and fertilizing the nutrient soil 204, ensuring the survival rate of the green plants 1 and preventing external debris from entering the tank 201 and affecting plant growth. The first geotextile 203 wraps the nutrient soil 204, achieving soil and water conservation, maintaining a stable environment inside the tank 201, and promoting healthy root development. Simultaneously, this structural design gives the green plants 1 a certain degree of resistance to rainwater erosion.

[0038] Furthermore, a geomembrane 3 is provided between the inner wall of the planting hole 4 and the outer wall of the planting container 2, so that at least part of the water discharged from the drainage pipe 5 into the planting hole 4 can be retained to irrigate the green plants 1. Specifically, in this embodiment, the geomembrane 3 is a waterproof geomembrane.

[0039] By utilizing the geomembrane 3 to prevent seepage and retain water, on the one hand, the drainage pipe 5 drains water from the slope and reduces seepage into the soil in the planting hole 4, ensuring the drainage efficiency of the slope. On the other hand, the drainage is retained in the planting hole 4 as much as possible, which can reduce the rapid loss of water and ensure that there is enough water in the planting tank 2 for the plants to absorb, thereby improving the water resource utilization rate and enhancing irrigation efficiency, which is especially important under drought conditions.

[0040] Furthermore, nutrient soil 204 is formed by mixing soil with compound fertilizer.

[0041] Nutrient soil 204 provides sufficient nutrients for the growth of green plants 1, promoting their healthy growth and increasing their survival rate and growth rate. Adding compound fertilizer improves the soil's physical properties, increasing aeration and water retention, which is beneficial for plant root development.

[0042] Furthermore, both the drainage pipe 5 and the tank 201 are made of cylindrical PVC pipes. The cylindrical structure not only facilitates insertion into the corresponding holes but also provides high structural strength. Additionally, in this embodiment, the drainage pipe 5 and the tank 201 can be prefabricated in the factory.

[0043] Using PVC pipes offers the following advantages: PVC pipes have good corrosion resistance; PVC material has excellent chemical stability and is not easily corroded by acidic or alkaline substances in the soil, thus extending its service life; PVC pipes have high strength; PVC pipes possess sufficient mechanical strength to withstand certain external impacts, ensuring structural integrity; and PVC material is lightweight, facilitating transportation and on-site construction.

[0044] Furthermore, the drainage holes 7 and planting holes 4 work together, with multiple sets of drainage holes 7 or planting holes 4 arranged at equal intervals. This allows for control of the planting spacing of the green plants 1, ensuring sufficient space for their survival and facilitating better photosynthesis during their growth, thereby improving their survival rate. Specifically, in this embodiment, the specific species of green plants 1 are determined based on local climate, usage scenarios, and other factors.

[0045] In some implementations, as shown in Figure 4, the surface of the drainage pipe 5 is provided with multiple seepage holes 501. The drainage pipe 5 is arranged at an angle, and the elevation of the end of the drainage pipe 5 near the slope is lower than the elevation of the end away from the slope, so that the water inside the slope flows into the drainage pipe 5 through the seepage holes 501 and can flow naturally into the planting tank 2 under the action of gravity.

[0046] By rationally arranging the infiltration holes 501 and the inclined angle of the drainage pipes 5, excess water inside the slope can be quickly collected and discharged, reducing water pressure inside the slope and preventing landslides. Utilizing the principle of gravity, some of the collected water is introduced into the planting tank 2 to achieve natural irrigation, saving water resources while ensuring the water supply to the plants. At the same time, the inclined arrangement of the drainage pipes 5 also helps reduce the risk of sediment deposition in the pipes, maintaining the long-term smooth flow of the drainage system.

[0047] Furthermore, a second geotextile 6 is laid between the outer wall of the drainage pipe 5 and the inner wall of the drainage hole 7.

[0048] The seepage holes 501 distributed on the outer wall of the drainage pipe 5 allow water from the slope to smoothly enter the interior of the drainage pipe 5, improving the drainage efficiency of the drainage pipe 5. When the drainage pipe 5 is draining water from the slope, the second geotextile 6 can reduce the amount of fine soil particles such as sand and gravel around the seepage holes 501 that are carried away by the slope water, thus having a certain water and soil conservation effect.

[0049] Furthermore, in this embodiment, the slope protection structure 10 adopts an anchor bolt and wire mesh shotcrete protection structure. This structure effectively reinforces the slope, preventing instability and collapse, thus ensuring the stability and safety of the slope. Compared to the frame beam structure, the anchor bolt and wire mesh shotcrete protection structure has a shorter construction period, lower project cost, and can form the slope protection structure 10 more quickly, ensuring the stability of steep soil slopes 8.

[0050] The implementation principle of a greening structure suitable for steep soil slopes is as follows:

[0051] Typically, in steep soil slopes 8, the slope protection construction surface 9 formed by excavation is relatively steep, and the surface water has a strong effect, which makes the slope prone to collapse.

[0052] In this technical solution, planting tanks 2 and drainage pipes 5 are combined. The drainage pipes 5 collect water from inside the slope and guide it into the planting tanks 2, providing the plants with the necessary water source. This achieves passive ecological automatic irrigation, eliminating the need for irrigation equipment, reducing project investment, and improving economic efficiency. The nutrient soil 204 formed by mixing soil with compound fertilizer provides sufficient nutrients for the greening plants 1. Coupled with a suitable humidity environment, this greatly improves the survival rate and growth rate of the greening plants 1.

[0053] The drainage pipe 5 and the seepage holes 501 on its surface can effectively drain excess water from the slope, reduce pore water pressure, prevent landslide risks caused by water accumulation, and enhance the overall stability of the slope. The application of the first geotextile 203 not only filters sediment but also prevents the loss of fine particles, helping to maintain the integrity of the slope and reduce damage caused by rainwater erosion.

[0054] The planting tank 2 is filled with nutrient soil 204 mixed with compound fertilizer and wrapped with a first geotextile 203 to prevent soil loss. Drainage holes 202 are provided on the surface of the tank body 201 to ensure that excess water can be drained in time and to prevent water accumulation. A removable top cover 205 is installed on the top for convenient future maintenance.

[0055] A geomembrane 3 is laid between the planting hole 4 and the planting tank 2. On the one hand, it serves as an isolation to prevent water from seeping into the surrounding soil too quickly; on the other hand, it ensures that some water can remain near the planting tank 2, providing a continuous water supply for the green plants 1.

[0056] Planting tank 2 and drainage flower pipe 5 are made of PVC material and are prefabricated in the factory. On-site installation only requires drilling, eliminating the need for complicated formwork construction, rebar tying and other processes, which greatly shortens the construction period and reduces labor and material costs.

[0057] Example 2:

[0058] This embodiment describes a construction method for greening structures suitable for steep soil slopes, including the following steps:

[0059] S1. Drilling is carried out on the slope protection structure 10 and inside the slope of the steep soil slope 8 to form planting holes 4 and drainage holes 7. The planting holes 4 and drainage holes 7 are arranged in combination, and the arrangement of the combined holes is arranged at a certain interval.

[0060] S1.1 The arrangement of combined holes includes rectangular array or quincunx arrangement.

[0061] S2. Drill holes 501 in the outer wall of the drainage pipe 5 to form seepage holes, wrap the second geotextile 6 and then insert it into the drainage hole 7.

[0062] S3. Cover the planting hole 4 with geomembrane 3.

[0063] S3.1 When laying the geomembrane 3, the seam should be placed on the upper side of the planting hole 4, and a hole should be reserved at the junction of the geomembrane 3 and the drainage flower pipe 5.

[0064] S4. Assemble the tank body 201, the first geotextile 203, and the nutrient soil 204 of the planting tank 2 in sequence, wherein the outer surface of the tank body 201 has drainage holes 202 with equal spacing.

[0065] S5. Plant seedlings of greening plant 1 in nutrient soil 204.

[0066] S5.1 Seedlings of greening plants 1 should preferably be drought-resistant, flood-resistant, and vigorous varieties, including Virginia creeper, to reduce later management costs.

[0067] S6. Pass the top cover 205 through the seedling of the green plant 1, and then tightly connect the top cover 205 to the opening of the tank body 201.

[0068] S7. Place the planting container 2 containing the seedlings of green plants 1 into the planting hole 4 filled with geomembrane 3.

[0069] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A greening structure suitable for steep soil slopes, wherein a slope protection construction surface (9) is formed by excavation on the surface of the steep soil slope (8), and a slope protection structure (10) is provided on the slope protection construction surface (9), characterized in that, include: Drainage holes (7) are drilled inside the slope of the steep soil slope (8), and multiple drainage holes (7) are arranged at intervals in multiple levels along the slope surface. Planting holes (4) are drilled on the slope of the steep soil slope (8). Multiple planting holes (4) are connected to multiple drainage holes (7) in a one-to-one correspondence. The end of the planting hole (4) away from the drainage hole (7) passes through the slope protection structure (10). Planting tank (2) is set in the planting hole (4) for planting green plants (1) and can drain excess water from inside. Drainage pipe (5) is set in the drainage hole (7) and can collect excess water inside the slope and guide it into the planting tank (2) to irrigate the green plants (1).

2. A greening structure suitable for steep soil slopes according to claim 1, characterized in that: The planting tank (2) includes a top cover (205), nutrient soil (204), a first geotextile (203) and a tank body (201). The surface of the tank body (201) is provided with multiple drainage holes (202). The inside of the tank body (201) is filled with nutrient soil (204). The first geotextile (203) is provided between the nutrient soil (204) and the inner wall of the tank body (201). The green plants (1) are planted inside the nutrient soil (204). The top cover (205) is detachably installed at the end of the tank body (201) near the slope. The green plants (1) are exposed on the slope through the through holes on the top cover (205). The end of the tank body (201) away from the slope is separated from the output end of the drainage flower pipe (5) by the first geotextile (203).

3. A greening structure suitable for steep soil slopes according to claim 2, characterized in that: A geomembrane (3) is provided between the planting hole (4) and the planting container (2) so that at least part of the water discharged into the planting hole (4) by the drainage pipe (5) can be retained to irrigate the green plants (1).

4. A greening structure suitable for steep soil slopes according to claim 2, characterized in that: The nutrient soil (204) is formed by mixing soil with compound fertilizer.

5. A greening structure suitable for steep soil slopes according to claim 2, characterized in that: Both the drainage pipe (5) and the tank (201) are made of cylindrical PVC pipes.

6. A greening structure suitable for steep soil slopes according to claim 1, characterized in that: The surface of the drainage flower pipe (5) is provided with multiple seepage holes (501). The drainage flower pipe (5) is arranged in an inclined manner. The elevation of the end of the drainage flower pipe (5) near the slope is lower than the elevation of the end away from the slope, so that the water inside the slope flows into the drainage flower pipe (5) through the seepage holes (501) and can flow naturally into the planting tank (2) under the action of gravity.

7. A greening structure suitable for steep soil slopes according to claim 6, characterized in that: A second geotextile (6) is laid between the outer wall of the drainage pipe (5) and the inner wall of the drainage hole (7).

8. A greening structure suitable for steep soil slopes according to claim 1, characterized in that: The slope protection structure (10) adopts an anchor rod, wire mesh, and shotcrete protection structure.

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