Split type cage body structure for slope greening and slope repairing method

Abstract

The invention provides a split type cage body structure for slope greening and a slope repairing method.The split type cage body structure for slope greening comprises an upper cage body and a lower cage body, the upper cage body is detachably arranged in the lower cage body in a sleeved mode, the cross section of the upper cage body and the cross section of the lower cage body are trapezoidal, and the cross section of the lower cage body is trapezoidal. The top openings of the upper cage body and the lower cage body are the same in size, or the diameter of the opening of the lower cage body is the same as the diameter of the position 1 / 3 above the bottom of the upper cage body, a plurality of holes are formed in the upper cage body and the lower cage body, and a plurality of barb structures are arranged on the outer wall of the upper cage body and the outer wall of the lower cage body. Nursery stocks are pre-planted in the upper cage body in advance or cultivated bag seedlings and container seedlings are placed in the upper cage body on site, and an improved soil layer is prefabricated in the lower cage body. According to the invention, the site construction time is greatly shortened, the labor intensity is reduced, the material, manpower and transportation cost is reduced, the construction quality is improved, the tight contact between the root system of the nursery stock and the improved soil can be ensured, and the adaptive capacity of the nursery stock is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of slope ecological restoration and soil and water conservation, and in particular to a split cage structure for slope greening and a slope restoration method. Background Art

[0002] Currently, for steep soil slopes, shotcrete slopes, and rock-soil mixed slopes, safety nets are often used for direct protection, followed by natural vegetation recovery, or artificial techniques are used in addition to safety protection measures to promote vegetation recovery. These artificial techniques mainly include drilling planting, soil injection technology, vegetation bag (ecological blanket) vegetation recovery technology, and ecological concrete vegetation recovery technology.

[0003] Among them, except for the drilling planting method, which is to directly drill holes on the slope to improve the soil, prune seedlings and plant, other technologies are to artificially create a new soil layer on the slope, which is characterized by high cost and strong professionalism. Some of them also have the gravity of the outer layer causing the newly added surface soil to fall off or landslide. Some of them cause the roots of vegetation to stay on the surface in the later stage, causing plants to fall or fall over, posing a safety hazard to the slope.

[0004] Among them, the imported soil spraying technology uses compressed air to spray the vegetation mixture. Although it can achieve rapid soil coverage, it has defects such as uneven spray layer structure (thickness variation coefficient reaches 45%) and weak anti-erosion ability (annual erosion volume >30mm).

[0005] The vegetation bag (ecological blanket) restoration technology constructs a vegetation layer by stacking three-dimensional woven bags, but there are structural risks such as steep slope instability (slip probability >55% when the slope is >30°) and substrate settlement (annual average settlement rate >8%).

[0006] Ecological concrete vegetation restoration technology uses a porous concrete frame to fill the vegetation matrix and then fill it with soil, but it faces biomechanical contradictions such as pore blockage (annual blockage rate >35%) and limited root penetration (main root penetration rate <25%).

[0007] The punch planting method is to form a planting hole with a spiral drill and then fill it with improved substrate and seedlings in steps, and plant the plants directly into the soil layer of the slope, which plays an important role in the rooting and growth of plants. Plants can easily take root and grow stably, and anchor the slope through the root system, which is effective for slope stability and soil and water conservation. In addition, the whole process is relatively simple, easy to operate, and low in cost. It is completed by directly drilling holes on the slope using machinery or manual labor, and then filling fertilizer and planting seedlings. However, it has the defects of short fertilizer efficiency (conventional fertilizer loss rate ≥ 50%), high root suspension rate (root suspension rate > 30%) and complex process connection. It is necessary to complete drilling → soil improvement → fertilization → planting → backfilling in steps, and each link requires multiple slope operations. How to simplify the construction process of vegetation restoration on steep slopes, avoid multi-process slope operations, how to achieve precise fertilizer supply and coordinated development of plant roots, and how to improve the matching degree and long-term stability of cage structure and drilling holes have become urgent problems to be solved. Summary of the Invention

[0008] The main purpose of the present invention is to provide a split cage structure and slope repair method for slope greening, aiming to achieve process integration, long-term nutrient production, structural adaptability, improve construction efficiency, reduce construction costs, etc.

[0009] In order to achieve the above-mentioned purpose, the present invention proposes a split cage structure for slope greening, comprising: an upper cage body and a lower cage body with the same structure, the upper cage body can be detachably mounted in the lower cage body, the cross-sections of the upper cage body and the lower cage body are trapezoidal, the top openings of the upper cage body and the lower cage body are the same size or the opening of the lower cage body has the same diameter as the position 1 / 3 above the bottom of the upper cage body, a plurality of holes are opened on the upper cage body and the lower cage body, the outer walls of the upper cage body and the lower cage body are provided with a plurality of barb structures, the upper cage body is pre-planted with seedlings in advance or bagged seedlings or container seedlings cultivated on site are placed, an improved soil layer is prefabricated in the lower cage body, and seedlings are planted in the improved soil layer.

[0010] A further technical solution of the present invention is that the upper cage body and the lower cage body are cylindrical structures made of degradable materials.

[0011] A further technical solution of the present invention is that the degradable material is bamboo fiber, coconut shell fiber or polylactic acid.

[0012] A further technical solution of the present invention is that the diameter of the top openings of the upper cage body and the lower cage body is 10-20 cm, and the bottom openings are 2-3 cm smaller than the top openings.

[0013] A further technical solution of the present invention is that the height of the upper cage body is 10 cm and the height of the lower cage body is 10-15 cm.

[0014] A further technical solution of the present invention is that positioning cones are provided at the bottoms of the upper cage body and the lower cage body.

[0015] A further technical solution of the present invention is characterized in that a fixing groove or a buckle for fixing the upper cage body is provided on the lower cage body.

[0016] To achieve the above object, the present invention further proposes a slope repair method, which uses the above-mentioned split cage structure for slope greening, and comprises the following steps:

[0017] Step 10: Tidy up the slope, including clearing weeds and dangerous rocks and filling potholes;

[0018] Step S20, drilling: first, excavate holes on the slope surface, wherein the hole diameter is 12-22 cm, the hole diameter is 1.5-2 cm larger than the upper diameter of the cage, and the hole depth is 15-20 cm, the hole depth is the same as or 1-2 cm larger than the height of the upper and lower cages combined;

[0019] Step S30: loading the upper cage with seedlings, including directly using pre-planted cage seedlings in the upper cage or loading bag seedlings or container seedlings cultivated on site into the upper cage;

[0020] Step S40: placing a special matrix into the lower cage, mainly composed of bio-organic fertilizer, with a volume ratio of 40%-50% organic fertilizer, 40%-50% planting soil, 0.5%-1% water retaining agent, 10-30g slow-release fertilizer and other ingredients; the height of the matrix in the lower cage is about 1 / 3-1 / 2 of the upper diameter;

[0021] Step S50: The upper and lower cages are combined into one, so that the seedlings in the upper cage and the matrix in the lower cage are in contact and locked together, forming plant-matrix coordinated upper and lower cages;

[0022] Step S60, device filling: inserting the split cage structure for slope greening into the hole.

[0023] The beneficial effects of the split cage structure for slope greening and the slope repair method of the present invention are:

[0024] The present invention, through the above technical scheme, includes: an upper cage body and a lower cage body with the same structure, the upper cage body can be detachably sleeved in the lower cage body, the cross-sections of the upper cage body and the lower cage body are trapezoidal, the top openings of the upper cage body and the lower cage body are the same size or the opening of the lower cage body is the same diameter as the position 1 / 3 above the bottom of the upper cage body, a plurality of holes are opened on the upper cage body and the lower cage body, and a plurality of barb structures are provided on the outer walls of the upper cage body and the lower cage body, the seedlings are pre-planted in the upper cage body in advance or the cultivated bag seedlings or container seedlings are placed on site, an improved soil layer is prefabricated in the lower cage body, and the improved soil layer is planted with seedlings, and a modular, pre-cultivated split cage structure for slope greening is adopted, which greatly shortens the on-site construction time, reduces labor intensity, reduces material, manpower and transportation costs, improves construction quality, and can ensure close contact between the roots of the seedlings and the improved soil, thereby improving the adaptability of the seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the split cage structure for slope greening of the present invention;

[0026] Figure 2 This is a front view of a preferred embodiment of the split cage structure for slope greening of the present invention;

[0027] Figure 3 This is a schematic diagram of the exploded structure of a preferred embodiment of the split cage structure for slope greening of the present invention;

[0028] Figure 4 It is a flow chart of a preferred embodiment of the slope repair method of the present invention.

[0029] Description of Figure Numbers:

[0030] Upper cage body 1; lower cage body 2; hole 3; barb structure 4; improved soil layer 5; seedlings 6; fixing groove 7.

[0031] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The present invention proposes a modular, pre-cultivated split cage structure for slope greening, achieving a one-step "drilling-planting-maintenance" process. By combining prefabricated improved soil with seedlings, the on-site operation steps are reduced. This embodiment uses threshold-modified soil to effectively increase seedling survival rates, and the use of degradable materials can avoid secondary pollution and promote long-term ecological restoration. The present invention can achieve the following effects:

[0034] 1. Achieve process integration: By prefabricating the integrated "fertilizer-soil-seedling" cage in the factory, single planting can be achieved after drilling, realizing the transformation of the slope greening model from "on-site construction" to "factory prefabrication", thereby improving construction efficiency;

[0035] 2. Long-lasting nutrient supply: pre-loaded slow-release fertilizer (3-6 months) and organic fertilizer (6-12 months) in layers, combined with controlled-release membrane technology (loss rate <20%). 3. Structural adaptability: a split design (upper and lower cages with adjustable inclination angles of ±10°) matches drilling deviations, and external wall barb anchoring (pullout resistance >5kN) enhances stability.

[0036] For details, please refer to Figures 1 to 3 , a preferred embodiment of the split cage structure for slope greening of the present invention includes an upper cage body 1 and a lower cage body 2 of the same structure, the upper cage body 1 can be detachably mounted in the lower cage body 2, the cross-sections of the upper cage body 1 and the lower cage body 2 are trapezoidal, the top openings of the upper cage body 1 and the lower cage body 2 are the same size or the opening of the lower cage body 2 is the same as the diameter of the position 1 / 3 above the bottom of the upper cage body 1, and a plurality of holes 3 are opened on the upper cage body 1 and the lower cage body 2, and the holes 3 are convenient for the supply of fertilizer and water.

[0037] The outer walls of the upper cage body 1 and the lower cage body 2 are provided with a plurality of barb structures 4, and the barb structures 4 facilitate firmly fixing the entire upper cage body 1 and the lower cage body 2 on the slope.

[0038] The upper cage 1 is pre-planted with seedlings 6 or planted with bagged seedlings or container seedlings cultivated on site, and the lower cage 2 is pre-formed with an improved soil layer 5, which is planted with seedlings 6. The improved soil layer 5 contains soil conditioners and microbial culture media, which can improve soil structure and increase organic matter content.

[0039] In this embodiment, the upper cage body 1 and the lower cage body 2 are cylindrical structures made of degradable materials. The degradable materials can be bamboo fiber, coconut shell fiber or polylactic acid (PLA), etc., to ensure that the roots of the seedlings 6 can penetrate freely.

[0040] In this embodiment, the diameter of the top opening of the upper cage body 1 and the lower cage body 2 is 10-20 cm, and the bottom opening is 2-3 cm smaller than the top opening. The height of the upper cage body 1 is 10 cm, and the height of the lower cage body 2 is 10-15 cm.

[0041] In this embodiment, positioning cones are provided at the bottom of the upper cage body 1 and the lower cage body 2. The material of the positioning cones is the same as that of the upper cage body 1 and the lower cage body 2. The length of the positioning cones can be set to 5-10 cm according to the actual environment to enhance the anti-displacement ability after insertion into the slope.

[0042] Furthermore, in this embodiment, a fixing groove 7 or a buckle for fixing the upper cage body 1 is provided on the lower cage body 2 .

[0043] In this embodiment, a buckle structure (not shown in the figure) can be provided on the upper cage body 1 , and the buckle structure is locked in the fixing groove 7 or the buckle to achieve the purpose of fixing the upper cage body 1 .

[0044] The beneficial effects of the split cage structure for slope greening of the present invention are:

[0045] The present invention, through the above technical scheme, includes: an upper cage body and a lower cage body with the same structure, the upper cage body can be detachably sleeved in the lower cage body, the cross-sections of the upper cage body and the lower cage body are trapezoidal, the top openings of the upper cage body and the lower cage body are the same size or the opening of the lower cage body is the same diameter as the position 1 / 3 above the bottom of the upper cage body, a plurality of holes are opened on the upper cage body and the lower cage body, and a plurality of barb structures are provided on the outer walls of the upper cage body and the lower cage body, the seedlings are pre-planted in the upper cage body in advance or the cultivated bag seedlings or container seedlings are placed on site, an improved soil layer is prefabricated in the lower cage body, and the improved soil layer is planted with seedlings, and a modular, pre-cultivated split cage structure for slope greening is adopted, which greatly shortens the on-site construction time, reduces labor intensity, reduces material, manpower and transportation costs, improves construction quality, and can ensure close contact between the roots of the seedlings and the improved soil, thereby improving the adaptability of the seedlings.

[0046] To achieve the above object, the present invention also proposes a slope repair method, which uses the split cage structure for slope greening as described in the above embodiment, such as Figure 4 As shown, the method includes the following steps:

[0047] Step S10: tidying up the slope surface, including clearing weeds and dangerous rocks and filling potholes;

[0048] Step S20, drilling: first excavate holes on the slope surface, wherein the hole diameter is 12-22 cm, the hole diameter is 1.5-2 cm larger than the upper diameter of the cage body, and the hole depth is 15-20 cm, the hole depth is the same as or 1-2 cm larger than the height of the upper and lower cage bodies combined.

[0049] Step S30: loading seedlings into the upper cage, including directly using pre-planted cage seedlings in the upper cage or loading bag seedlings or container seedlings cultivated on site into the upper cage;

[0050] Step S40: placing a special matrix into the lower cage, mainly composed of bio-organic fertilizer, with a volume ratio of 40%-50% organic fertilizer, 40%-50% planting soil, 0.5%-1% water retaining agent, 10-30g slow-release fertilizer and other ingredients; the height of the matrix in the lower cage is about 1 / 3-1 / 2 of the upper diameter;

[0051] Step S50: The upper and lower cages are combined into one, so that the seedlings in the upper cage and the matrix in the lower cage are in contact and locked together, forming plant-matrix coordinated upper and lower cages;

[0052] Step S60, device filling: inserting the split cage structure for slope greening into the hole.

[0053] After the split cage structure for slope greening is inserted into the hole, the internal soil improvement device and water and fertilizer system are automatically started.

[0054] In this embodiment, after the split cage structure for slope greening is inserted into the hole, soil improvement and water and fertilizer supply are automatically completed without the need for manual continuous operation.

[0055] The comparative effects of the slope repair method of the present invention and the solution adopted in the prior art are shown in Table 1.

[0056] Table 1

[0057]

[0058]

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or process transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A split cage structure for slope greening, characterized in that: include: The upper cage body and the lower cage body are detachably mounted in the lower cage body, the cross-sections of the upper cage body and the lower cage body are trapezoidal, the top openings of the upper cage body and the lower cage body are the same size or the opening of the lower cage body is the same diameter as the 1 / 3 position above the bottom of the upper cage body, a plurality of holes are opened on the upper cage body and the lower cage body, the outer walls of the upper cage body and the lower cage body are provided with a plurality of barb structures, the upper cage body is pre-planted with seedlings in advance or bagged seedlings or container seedlings cultivated on site are placed, an improved soil layer is prefabricated in the lower cage body, and seedlings are planted in the improved soil layer.

2. The split cage structure for slope greening according to claim 1, characterized in that: The upper cage body and the lower cage body are cylindrical structures made of degradable materials.

3. The split cage structure for slope greening according to claim 2, characterized in that: The degradable material is bamboo fiber, coconut shell fiber or polylactic acid.

4. The split cage structure for slope greening according to claim 1, characterized in that: The top openings of the upper cage body and the lower cage body have a diameter of 10-20 cm, and the bottom openings are 2-3 cm smaller than the top openings.

5. The split cage structure for slope greening according to claim 4, characterized in that: The upper cage body has a height of 10 cm and the lower cage body has a height of 10-15 cm.

6. The split cage structure for slope greening according to claim 1, characterized in that: Positioning cones are provided at the bottoms of the upper cage body and the lower cage body.

7. The split cage structure for slope greening according to any one of claims 1 to 6, characterized in that: The lower cage body is provided with a fixing groove or a buckle for fixing the upper cage body.

8. A slope repair method, characterized in that: The method uses the split cage structure for slope greening according to any one of claims 1 to 7, and the method comprises the following steps: Step S10: tidying up the slope surface, including clearing weeds and dangerous rocks and filling potholes; Step S20, drilling: first, excavate holes on the slope surface, wherein the hole diameter is 12-22 cm, the hole diameter is 1.5-2 cm larger than the upper diameter of the cage, and the hole depth is 15-20 cm, the hole depth is the same as or 1-2 cm larger than the height of the upper and lower cages combined; Step S30: loading the upper cage with seedlings, including directly using pre-planted cage seedlings in the upper cage or loading bag seedlings or container seedlings cultivated on site into the upper cage; Step S40: placing a special matrix into the lower cage, mainly composed of bio-organic fertilizer, with a volume ratio of 40%-50% organic fertilizer, 40%-50% planting soil, 0.5%-1% water retaining agent, 10-30g slow-release fertilizer and other ingredients; the height of the matrix in the lower cage is about 1 / 3-1 / 2 of the upper diameter; Step S50: The upper and lower cages are combined into one, so that the seedlings in the upper cage and the matrix in the lower cage are in contact and locked together, forming plant-matrix coordinated upper and lower cages; Step S60, device filling: inserting the split cage structure for slope greening into the hole.

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