Dike slope surface construction device and construction process

Abstract

This invention discloses a construction device and process for embankment slopes, belonging to the field of slope protection embankment technology. It includes a slope protection section and a fixing section. The main body of the slope protection section is a prefabricated stepped slab with soil chambers and through holes. An integrally cast connecting pipe is installed inside the through hole. An expansion plate composed of multiple elastic arc-shaped petals is arranged at the bottom of the connecting pipe. A conical abutment block with a compression slope is provided at the bottom of the lower through hole. When the stepped slab is pressed down, the arc-shaped petals are compressed and radially open, embedding into the soil, achieving simultaneous completion of stepped slab splicing and deep anchoring. A through groove is opened on the conical abutment block's slope to form a deep sowing channel. During the anchoring pressing process, pre-stored seeds in the connecting pipe can directly fall into the deep slope layer. This invention provides strong anchoring and a durable structure, achieves deep sowing to prevent seed loss, automatically covers the soil to improve vegetation germination rate, and the vine support is assembled in one go without damaging the slope integrity. It is suitable for ecological protection projects of river embankments, reservoir embankments, and road soil slopes.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology for water conservancy projects, specifically to a construction device and construction process for embankment slopes. Background Technology

[0002] In river embankment, reservoir dike, and roadside slope protection projects, prefabricated assembled slope protection and ecological vegetation slope protection are the mainstream technologies for controlling soil erosion and bank landslides. A search of existing patents reveals two main areas: prefabricated splicing and anchoring slope protection, and ecological vegetation slope protection. However, existing technologies have significant shortcomings:

[0003] Precast splicing and anchoring type slope protection (CN223151212U, CN116122308A, CN221877969U): After the slope protection slab is laid, it is necessary to drill holes, insert anchor rods, and tighten expansion parts separately to achieve anchoring. The splicing and anchoring processes are separated. Long-term water flow erosion can easily cause the fasteners to loosen, resulting in poor structural durability, and there is no matching vegetation planting structure.

[0004] Ecological vegetation slope protection (CN109723068B, CN106545021A): relies on grid spraying and flexible support soil covering for sowing. The seeds only stay in the shallow layer of the slope and are easily washed away by rainwater and river water. The anchoring system and the sowing structure are independent of each other and the construction is completed in stages. Vines need to be drilled separately and erected for climbing supports later, which increases the construction cost and procedures.

[0005] Common defects of existing technologies: splicing and anchoring are carried out in separate steps, resulting in many procedures and long construction periods; sowing and anchoring are separated, and the roots of vegetation cannot penetrate into the soil to form deep biological anchoring; vine greening requires additional supports, which damages the integrity of the slope; each process is independent and fragmented, without a coordinated linkage mechanism, resulting in low overall construction efficiency.

[0006] Therefore, there is a need to provide a construction device and process for embankment slopes to solve the problems mentioned in the background art, such as cumbersome construction procedures, poor anchoring stability, easy erosion and loss of shallow seeds, and the need for secondary construction of vine climbing supports. Summary of the Invention

[0007] The purpose of this invention is to provide a construction device and process for embankment slopes to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a construction device for embankment slope, comprising a slope protection section, a splicing and anchoring mechanism, a deep seeding channel, an automatic soil covering channel, and a vine-assisted greening component;

[0009] The slope protection section includes a precast stepped slab, the surface of which has several soil chambers, and the stepped slab has vertical through holes running vertically through it; the top surface of the stepped slab is covered with a moisture-retaining cover cloth.

[0010] The splicing and anchoring mechanism includes a connecting pipe, an expansion plate, and a conical abutment block. The connecting pipe is located inside the through hole, and an expansion plate is installed at the bottom of the connecting pipe. The expansion plate is formed by multiple elastic arc-shaped petals. Under normal conditions, the arc-shaped petals are closed and seal the bottom of the connecting pipe, and the outer edge of the arc-shaped petals is provided with a guide arc surface. The conical abutment block is fixed at the bottom of the through hole, and an inclined extrusion slope is provided on the outer side of the conical abutment block. When the connecting pipe of the upper step plate is inserted into the through hole of the lower step plate, the arc-shaped petals are pushed radially open by the extrusion slope and embedded into the soil to achieve anchoring.

[0011] The deep seeding channel is a groove opened in the middle of the extrusion slope. Plant seeds are pre-placed at the bottom of the connecting pipe. During the downward pressing and anchoring process, the seeds fall into the deep soil of the slope along the groove.

[0012] The automatic soil covering channel includes a soil trough and a connecting trough. The soil trough is located on the inner wall of the soil chamber near the connecting pipe, and the connecting trough is located on the outer wall of the connecting pipe. The soil trough and the connecting trough are interconnected. When the planting soil in the soil chamber is compacted, fine soil particles flow into the connecting pipe through the soil trough and the connecting trough to bury the seeds.

[0013] The vine-assisted greening component includes climbing poles, support poles, and locking blocks; the climbing poles have several support poles on their side walls, and locking blocks are fixed at the bottom of the climbing poles; a slot is opened in the inner wall of the through hole, and the slot includes a vertical longitudinal slot and an annular arc slot; after the locking block is inserted along the longitudinal slot, the climbing pole is rotated, and the locking block slides into the arc slot to complete the rotational locking.

[0014] Preferably, the expansion plate has 3-4 arc-shaped lobes, and the angle between the arc-shaped lobes and the axis of the connecting pipe is 30°-60° after being opened under pressure; the bottom of each arc-shaped lobe extends outward to form barbed protrusions, which are used to increase the interlocking friction with the soil.

[0015] Preferably, the angle between the extrusion slope of the conical block and the horizontal plane is 45°-60°; the width of the through groove is 1.2-2 times the maximum particle size of the seed, and the upper and lower ends of the through groove are rounded to avoid seed jamming.

[0016] Preferably, the step plate is precast using recycled aggregate concrete or fiber-reinforced cement; the arc-shaped petals are made of elastic stainless steel or high-strength weather-resistant engineering plastic; and the connecting pipe is precast and cast integrally with the step plate.

[0017] Preferably, both the soil trough and the connecting trough are trapezoidal guide troughs that are wider at the top and narrower at the bottom. The sidewalls of the trapezoidal guide troughs are provided with multiple fine guide lines to facilitate the smooth flow of the compacted fine-grained planting soil into the connecting pipe.

[0018] Preferably, the support rods on the climbing pole are arranged in layers and staggered along the height of the pole, and the outer end of the support rod is provided with an upwardly bent limiting hook to limit the vine branches and prevent them from falling off; the locking block is a symmetrical double protrusion structure, and the two ends of the arc groove in the locking groove are provided with limiting stops to restrict the climbing pole from rotating and loosening.

[0019] Preferably, the top of the through hole is detachably fitted with a pipe cap, and a small ventilation hole is opened in the center of the pipe cap; the moisture-retaining cover is made of water-permeable non-woven fabric, and the edge of the cover is provided with an insert strip. A pressure groove matching the insert strip is opened at the opening of the soil chamber of the step plate to achieve the tight fixing of the cover.

[0020] This invention also provides a construction process for a dike slope, which uses the above-mentioned dike slope construction device and includes the following steps:

[0021] S1. Slope trimming and compaction: Excavate the original slope according to the design slope of the embankment, trim it into a stepped soil layer, and compact the base of the step layer by layer with a flat tamper, and remove gravel, grass roots and other debris from the slope.

[0022] S2. Laying and planting of prefabricated step slabs: Lay the prefabricated step slabs flat on the step soil layer, so that the bottom surface of the step slabs is completely in contact with the soil layer; mix and place grass and shrub seeds suitable for the local soil and water environment into the bottom of the connecting pipe.

[0023] S3. Synchronous Deep Seeding with Splicing and Anchoring: Align the bottom connecting pipe of the upper step plate with the through hole of the lower step plate and apply downward pressure; the arc-shaped petals at the bottom of the connecting pipe are squeezed radially by the conical abutment block and anchored into the soil at a depth of 30-50cm, and the upper and lower step plates are spliced ​​and fixed; the seeds at the bottom of the pipe fall synchronously into the deep soil of the slope through the through groove, and anchoring, splicing and deep seeding are completed in one go.

[0024] S4. Filling, compacting and automatic covering: Fill the soil chamber of the stepped plate with humus planting soil in layers and compact each layer. Squeeze the fine soil into the connecting pipe along the soil groove and connecting groove to form a 3-5cm uniform covering layer above the seeds.

[0025] S5. Surface greening and climbing pole assembly: Spread a thin layer of grass seeds on the surface of the soil chamber, lay a moisture-retaining cover cloth and fix the cover cloth strip into the soil chamber pressure groove; insert the bottom end of the climbing pole into the longitudinal groove of the through hole to the bottom, rotate 30°-45° to make the block lock into the arc groove, and complete the installation of the vine climbing support. Afterwards, naturally water the vegetation for maintenance.

[0026] Preferably, in step S3, the outward opening angle of the arc-shaped petals under pressure is controlled at 40°-50°; the downward pressure load adopts the static pressure of the self-weight of a small excavator, and the single downward pressure is maintained for 8-12 seconds to ensure that the arc-shaped petals are fully opened and anchored in place.

[0027] Preferably, in step S4, layered compaction is carried out using a small handheld tamper, with each layer of soil not exceeding 10cm in thickness; in step S5, the climbing pole is rotated and locked at an angle of 35°-40°, and the maintenance period is not less than 90 days. During the maintenance period, water is replenished regularly to ensure the humidity for seed germination.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. This invention integrates splicing and anchoring for simultaneous construction, significantly reducing construction procedures: This device integrates the splicing of step plates and deep mechanical anchoring into a single linkage structure. By pressing down the paving, the splicing of two layers of step plates and the anchoring of the soil can be completed simultaneously. This eliminates the need for multiple procedures such as drilling holes, installing anchor rods, and tightening expansion components after the traditional slope protection slab is laid, shortening the construction cycle and reducing labor costs.

[0030] 2. The anchoring structure of this invention has a firm interlocking and excellent erosion resistance and durability: it relies on the conical block to squeeze the elastic arc-shaped petals to open radially and embed them into the soil to a depth of 30~50cm. With the barbed protrusions at the bottom of the petals tightly interlocking with the soil, there are no exposed metal fasteners, which prevents the fasteners from loosening or falling off due to water erosion, and greatly improves the service life of the overall slope protection structure.

[0031] 3. This invention features simultaneous deep sowing with anchoring, solving the problem of seed loss: relying on the central groove of the conical block to form a dedicated deep sowing channel, the seeds are directly delivered into the deep soil of the slope during the anchoring and pressing process. Unlike traditional shallow spraying on slopes, this invention avoids seed loss caused by rainwater and river water erosion from the root. The plant roots penetrate deep into the soil to form a biological anchoring layer, which, together with mechanical anchoring, enhances the slope's resistance to landslides.

[0032] 4. This invention features automatic soil covering in conjunction with soil filling and compaction, improving seed germination rate: A connected trapezoidal guide channel is set between the soil chamber and the connecting pipe. During the soil filling and compaction process, fine-grained planting soil is squeezed and automatically flows into the connecting pipe to cover the seeds, forming a uniformly thick covering, eliminating the need for manual soil covering; combined with a detachable top cover and a permeable and moisture-retaining surface cover, it maintains stable soil moisture and significantly improves seed germination and survival rate.

[0033] 5. The vine support system of this invention is an integrated quick-installation system that eliminates the need for secondary drilling that could damage the slope: The vine auxiliary greening component adopts a rotating snap-fit ​​installation structure, allowing the climbing poles to be installed simultaneously during the slope protection paving stage. This eliminates the need for separate drilling and erection of climbing supports later, thus preserving the integrity of the stepped slope. The layered, staggered hooked supports provide three-dimensional climbing attachment points for the vines, quickly achieving full coverage of the slope for three-dimensional ecological greening. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0035] Figure 2This is a schematic diagram of the connecting pipe in this invention.

[0036] Figure 3 This is a schematic diagram of the arc-shaped petal structure in this invention.

[0037] Figure 4 This is a schematic diagram of the conical abutment block in this invention.

[0038] Figure 5 This is a schematic diagram of the through groove in the present invention.

[0039] Figure 6 This is a schematic diagram of the pipe cap structure in this invention.

[0040] Figure 7 This is a schematic diagram of the climbing rod in this invention.

[0041] Figure 8 This is a schematic diagram of the cover fabric in this invention.

[0042] In the diagram: 1. Slope protection section; 11. Stepped plate; 12. Soil chamber; 121. Soil trench; 2. Through hole; 21. Conical abutment block; 22. Extrusion slope; 23. Through groove; 24. Pipe cover; 3. Fixing part; 31. Connecting pipe; 311. Connecting groove; 32. Expansion plate; 321. Arc-shaped petal; 322. Guide arc surface; 41. Climbing rod; 42. Support rod; 43. Support rod; 44. Locking block; 45. Locking groove; 5. Cover cloth. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figure 1-8 The present invention provides a technical solution: Example 1

[0045] Reference Figure 1 , Figure 2 This embodiment provides a construction device for a embankment slope, the main body of which includes a slope protection part 1 and a fixing part 3; the main body of the slope protection part 1 is a step plate 11, the step plate 11 is precast in one piece using recycled aggregate concrete, a through hole 2 is opened in the step plate 11, and the fixing part 3 is pre-installed in the through hole 2; the fixing part 3 includes a connecting pipe 31 integrally cast in the through hole 2, an expansion plate 32 is assembled at the bottom end of the connecting pipe 31, and a conical abutment 21 is fixed at the bottom of the through hole 2 of the lower step plate 11.

[0046] Multiple square soil chambers 12 are evenly distributed on the surface of the step slab 11 for filling with humus planting soil to cultivate vegetation; a cover cloth 5 is laid on the top surface of the step slab 11. The cover cloth is made of water-permeable non-woven fabric with inlay strips on the edges. Matching pressure grooves are opened at the openings of the soil chambers 12 to press and fix the cover cloth tightly, reduce soil moisture evaporation, and prevent surface seeds from being washed away by rainwater.

[0047] During on-site construction, the slope is first trimmed into stepped soil layers and compacted. The first-layer step plate 11 is laid flat on the bottom step. The connecting pipe 31 of the upper step plate 11 is aligned with the lower through hole 2 and pressed down vertically. The expansion plate 32 at the bottom of the connecting pipe 31 contacts the conical block 21. The squeezing slope 22 of the conical block 21 pushes the expansion plate 32 radially outward and embeds it into the deep soil. The longitudinal splicing of the upper and lower step plates and the slope anchoring are completed simultaneously, eliminating the need for separate drilling and anchor bolt fastening procedures.

[0048] The expansion plate 32 is composed of four elastic stainless steel arc-shaped petals 321. Under normal conditions, the petals are tightly attached to the bottom of the sealed connecting pipe 31. The outer edge of the arc-shaped petals 321 is provided with a guide arc surface 322. When pressed down, it can slide smoothly along the inclined surface of the conical abutment block 21 to ensure that the petals are evenly spread. The bottom of each arc-shaped petal 321 is integrally formed with barbed protrusions. After the petals are spread, the barbed protrusions are embedded into the soil, which greatly improves the anchoring grip friction and resists the slippage and loosening caused by water erosion and soil settlement.

[0049] Example 2

[0050] Reference Figure 3 , Figure 4 This embodiment adds a deep synchronous sowing structure based on embodiment 1: a through groove 23 is opened in the middle of the extrusion slope 22 of the conical block 21. The width of the through groove is 1.5 times the maximum particle size of the local slope protection shrub seeds. The upper and lower ends of the through groove are rounded to prevent seeds from getting stuck and blocked.

[0051] In the pre-construction steps, a mixture of grass and shrub seeds suitable for the local soil and water conditions is placed at the bottom of the connecting pipe 31, supported by the closed arc-shaped petals 321. During the anchoring process of the upper step plate, the arc-shaped petals 321 are pushed open by the conical block 21, and the cavity at the bottom of the connecting pipe 31 is connected to the deep soil of the slope through the through groove 23. The seeds fall into the 30-50cm deep soil along the through groove 23 by their own weight, so that the splicing anchoring and deep sowing are completed simultaneously.

[0052] The top of the through hole 2 is fitted with a detachable tube cap 24, with a micro ventilation hole in the center of the tube cap. When backfilling and compacting the soil, covering the tube cap 24 can prevent a large amount of soil and gravel from falling into the connecting pipe 31, thus avoiding blockage of the through groove 23, while ensuring the breathable environment required for deep seed germination.

[0053] Example 3

[0054] Reference Figure 5 In this embodiment, an automatic soil covering channel structure is added: a soil groove 121 is opened on the inner wall of the soil chamber 12 near the connecting pipe 31, and a corresponding connecting groove 311 is opened on the outer wall of the connecting pipe 31. The soil groove 121 and the connecting groove 311 are interconnected. Both are trapezoidal guide grooves that are wider at the top and narrower at the bottom. The inner wall of the groove is processed with fine guide textures to reduce the flow resistance of fine soil particles.

[0055] During the process of filling and compacting planting soil into the soil chamber 12 in layers, the soil is squeezed by the tamping machine to produce fine soil particles, which are guided into the connecting pipe 31 along the soil trough 121 and the connecting trough 311, and naturally accumulate on top of the deep seeds, automatically forming a 4cm uniform soil covering layer. There is no need for manual soil covering to bury the seeds, which greatly improves construction efficiency and seed germination rate.

[0056] Example 4

[0057] Reference Figure 7 In this embodiment, an auxiliary greening component for vines is added: climbing rods 41 are installed inside the through hole 2, and multiple support rods 42 are arranged in layers on the side wall of the climbing rods 41. The outer ends of the support rods are bent upward to form limiting hooks to prevent vine branches from falling off; the bottom end of the climbing rods 41 is integrally connected to the support rods 43, and the bottom of the support rods is provided with a symmetrical double protrusion structure of the locking block 44.

[0058] A slot 45 is opened on the inner wall of the through hole 2. The slot is divided into a vertical longitudinal slot and an annular arc slot. Limiting stops are set at both ends of the arc slot. During assembly, the locking block 44 is inserted into the bottom of the through hole along the longitudinal slot and rotated 40° clockwise. The locking block 44 slides into the annular arc slot to complete the rotation lock. The limiting stops prevent the climbing rod from rotating back and loosening. The support rod 43 is close to the inner wall of the connecting pipe 31 to form radial support, which improves the stability of the climbing rod against wind and vine pulling. In the later stage, the vines can extend along the support rod 42 to quickly realize the three-dimensional greening of the slope without the need for secondary drilling and erection of the support.

[0059] Example 5

[0060] This embodiment provides a construction process for a embankment slope, using the construction device described in any one of embodiments 1-4. The specific construction steps are as follows:

[0061] S1. Slope trimming and compaction: Excavate the original soil slope according to the design slope of the embankment, trim it into regular stepped soil layers, and use a flat rammer to compact the base surface of the steps layer by layer. Remove gravel, grass roots and loose soil from the slope to ensure that the base surface for laying the step slabs is flat and dense.

[0062] S2. Step slab laying and seeding: The precast step slab 11 is laid flat on the compacted step soil layer. The position is adjusted so that the bottom surface of the step slab is completely in contact with the soil layer without any gaps or curling edges. Native grass and shrub seeds that are suitable for the climate and soil of the construction area are selected, mixed and put into the bottom of the connecting pipe 31, which is supported by the closed arc-shaped petals 321.

[0063] S3. Synchronous Deep Seeding with Splicing and Anchoring: Align the bottom connecting pipe 31 of the upper step plate with the lower through hole 2, and apply static pressure downward using the self-weight of a small excavator, maintaining pressure for 10 seconds at a time; the conical block 21 squeezes the arc-shaped petals 321 outward, with the opening angle controlled at 45°, and the petals, along with the bottom barbed protrusions, are embedded into the soil 40cm deep, completing the splicing and deep anchoring of the step plate; at the same time, the seeds inside the connecting pipe fall into the deep soil of the slope along the through groove 23, and the anchoring, splicing, and deep seeding are completed simultaneously.

[0064] S4. Filling, compacting and automatic covering: Fill the soil chamber 12 with humus planting soil in layers, with each layer controlled to be 8cm thick. Use a small handheld tamper to compact each layer. The fine soil produced by compaction flows into the connecting pipe 31 along the soil groove 121 and the connecting groove 311, forming a 4cm uniform covering layer above the seeds. After construction, fasten the pipe cover 24 to the top of the through hole 2.

[0065] S5. Surface Greening and Climbing Pole Assembly: Evenly spread a thin layer of grass seeds on the surface of the soil chamber, cover the top of the soil chamber with the cover cloth 5, and insert the edge strip of the cover cloth into the soil chamber pressure groove to fix it; insert the bottom locking block 44 of the climbing pole 41 into the longitudinal groove of the through hole to the bottom, rotate it 40° clockwise to lock the block, and assemble the vine support in one go; after the construction is completed, enter the maintenance stage, the maintenance period is not less than 90 days, water regularly to keep the soil moist, and ensure that the deep seeds and surface grass seeds germinate smoothly, and the vines grow along the climbing pole support to cover the slope.

[0066] This invention integrates mechanical anchoring, deep seeding, automatic soil covering, and vine greening into a single unit. All processes are completed simultaneously using stepped slab paving, completely solving industry pain points such as cumbersome traditional slope protection procedures, easy anchoring failure, seed erosion and loss, and secondary construction damage to the slope. The dual soil stabilization of mechanical anchoring and biological anchoring by plant roots significantly improves slope water and soil conservation and anti-slide performance, and provides stable and long-lasting ecological greening effects. It is widely applicable to river embankments, reservoir embankments, and highway soil slope protection projects.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction device for dike slope, characterized in that, This includes slope protection sections, splicing and anchoring mechanisms, deep seeding channels, automatic soil covering channels, and vine-assisted greening components; The slope protection section includes a precast stepped slab, the surface of which has several soil chambers, and the stepped slab has vertical through holes running vertically through it; the top surface of the stepped slab is covered with a moisture-retaining cover cloth. The splicing and anchoring mechanism includes a connecting pipe, an expansion plate, and a conical abutment block. The connecting pipe is located inside the through hole, and an expansion plate is installed at the bottom of the connecting pipe. The expansion plate is formed by multiple elastic arc-shaped petals. Under normal conditions, the arc-shaped petals are closed and seal the bottom of the connecting pipe, and the outer edge of the arc-shaped petals is provided with a guide arc surface. The conical abutment block is fixed at the bottom of the through hole, and an inclined extrusion slope is provided on the outer side of the conical abutment block. When the connecting pipe of the upper step plate is inserted into the through hole of the lower step plate, the arc-shaped petals are pushed radially open by the extrusion slope and embedded into the soil to achieve anchoring. The deep seeding channel is a groove opened in the middle of the extrusion slope. Plant seeds are pre-placed at the bottom of the connecting pipe. During the downward pressing and anchoring process, the seeds fall into the deep soil of the slope along the groove. The automatic soil covering channel includes a soil trough and a connecting trough. The soil trough is located on the inner wall of the soil chamber near the connecting pipe, and the connecting trough is located on the outer wall of the connecting pipe. The soil trough and the connecting trough are interconnected. When the planting soil in the soil chamber is compacted, fine soil particles flow into the connecting pipe through the soil trough and the connecting trough to bury the seeds. The vine-assisted greening component includes climbing poles, support poles, and locking blocks; the climbing poles have several support poles on their side walls, and locking blocks are fixed at the bottom of the climbing poles; a slot is opened in the inner wall of the through hole, and the slot includes a vertical longitudinal slot and an annular arc slot; after the locking block is inserted along the longitudinal slot, the climbing pole is rotated, and the locking block slides into the arc slot to complete the rotational locking.

2. The embankment slope construction device according to claim 1, characterized in that, The expansion plate has 3-4 arc-shaped lobes. When the arc-shaped lobes are opened under pressure, the angle between them and the axis of the connecting pipe is 30°-60°. The bottom of each arc-shaped lobe extends outward to form a barbed protrusion, which is used to increase the interlocking friction with the soil.

3. The embankment slope construction device according to claim 1, characterized in that, The angle between the extrusion slope of the conical block and the horizontal plane is 45°-60°; the width of the through groove is 1.2-2 times the maximum particle size of the seed, and the upper and lower ends of the through groove are rounded to avoid seed jamming.

4. The embankment slope construction device according to claim 1, characterized in that, The step slab is precast using recycled aggregate concrete or fiber-reinforced cement; the arc-shaped petals are made of elastic stainless steel or high-strength weather-resistant engineering plastic; the connecting pipe is precast and cast integrally with the step slab.

5. The embankment slope construction device according to claim 1, characterized in that, Both the soil trough and the connecting trough are trapezoidal guide troughs that are wider at the top and narrower at the bottom. The sidewalls of the trapezoidal guide troughs are provided with multiple fine guide lines to facilitate the smooth flow of the compacted fine-grained planting soil into the connecting pipe.

6. The embankment slope construction device according to claim 1, characterized in that, The support rods on the climbing pole are arranged in layers along the height of the pole, and the outer end of the support rod is provided with an upwardly bent limiting hook to limit the vine branches and prevent them from falling off; the locking block is a symmetrical double protrusion structure, and the two ends of the arc groove in the locking groove are provided with limiting stops to restrict the climbing pole from rotating and loosening.

7. The embankment slope construction device according to claim 1, characterized in that, The top of the through hole can be detachably fitted with a pipe cap, and a small ventilation hole is opened in the center of the pipe cap; the moisture-retaining cover is made of water-permeable non-woven fabric, and the edge of the cover is provided with an insert strip. A pressure groove matching the insert strip is opened at the opening of the soil chamber of the step plate to achieve the tight fixation of the cover.

8. A construction process for a embankment slope, characterized in that, The embankment slope construction device according to any one of claims 1-7 comprises the following steps: S1. Slope trimming and compaction: Excavate the original slope according to the design slope of the embankment, trim it into a stepped soil layer, and compact the base of the step layer by layer with a flat tamper, and remove gravel, grass roots and other debris from the slope. S2. Laying and planting of prefabricated step slabs: Lay the prefabricated step slabs flat on the step soil layer, so that the bottom surface of the step slabs is completely in contact with the soil layer; mix and place grass and shrub seeds suitable for the local soil and water environment into the bottom of the connecting pipe. S3. Synchronous Deep Seeding with Splicing and Anchoring: Align the bottom connecting pipe of the upper step plate with the through hole of the lower step plate and apply downward pressure; the arc-shaped petals at the bottom of the connecting pipe are squeezed radially by the conical abutment block and anchored into the soil at a depth of 30-50cm, and the upper and lower step plates are spliced ​​and fixed; the seeds at the bottom of the pipe fall synchronously into the deep soil of the slope through the through groove, and anchoring, splicing and deep seeding are completed in one go. S4. Filling, compacting and automatic covering: Fill the soil chamber of the stepped plate with humus planting soil in layers and compact each layer. Squeeze the fine soil into the connecting pipe along the soil groove and connecting groove to form a 3-5cm uniform covering layer above the seeds. S5. Surface greening and climbing pole assembly: Spread a thin layer of grass seeds on the surface of the soil chamber, lay a moisture-retaining cover cloth and fix the cover cloth strip into the soil chamber pressure groove; insert the bottom end of the climbing pole into the longitudinal groove of the through hole to the bottom, rotate 30°-45° to make the block lock into the arc groove, and complete the installation of the vine climbing support. Afterwards, naturally water the vegetation for maintenance.

9. The construction process for a dike slope according to claim 8, characterized in that, In step S3, the outward opening angle of the arc-shaped petals under pressure is controlled at 40°-50°; the downward pressure load adopts the static pressure of the self-weight of a small excavator, and the single downward pressure is maintained for 8-12 seconds to ensure that the arc-shaped petals are fully opened and anchored in place.

10. The construction process for a dike slope according to claim 8, characterized in that, Step S4 involves layered compaction using a small handheld tamper, with each layer of soil not exceeding 10cm in thickness; Step S5 involves rotating and locking the climbing pole at an angle of 35°-40°, with a maintenance period of no less than 90 days, during which water is regularly replenished to ensure the humidity for seed germination.

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