Intensive naturalization reconstruction structure of vertical deep groove river revetment
Patent Information
- Application Number
- CN202522122085.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-30
AI Technical Summary
然而，在高密度城市中，滨河空间往往极为紧张，垂直深槽护岸也带来了一系列突出问题：其一，过滤调蓄功能不足——过度硬质化以及紧约束的城市用地使滨河地带缺乏滞蓄和净化雨水的生态空间，雨水携带的悬浮物、氮磷等污染物往往直接入河，削弱了河岸在城市水环境管理中的过滤调蓄功能；其二，生态功能缺失——高陡且表面光滑的立面上缺乏植被生长条件和动物栖息空间，导致生物多样性极低，水陆生态系统之间的连通性下降；其三，景观协调性较差——硬质化表面缺乏绿化覆盖，视觉上与城市自然景观融合度低，难以满足市民对亲水空间和生态美观的双重需求
[0015]本实用新型所述的垂直深槽护岸的高效集约化亲自然改造结构，突破了传统直立护岸生态缺失、硬质化严重，以及滨河改造空间紧张的局限，具有雨水净化与调蓄、生境恢复、碳汇提升、空间适应强的显著优点。在垂直方向上，通过固碳型植生槽与植物桩排结构的配置，实现护岸立面由岸至水的立体垂直湿地构建，提升垂直生态连通性；在水平方向上，结合滨河增强型雨水过滤调蓄系统与堤脚生态庇护系统，形成由陆域至水体的横向缓冲带，减轻暴雨时的雨水冲刷、提供多样化微生境，实现水陆系统的综合修复与功能提升；在纵向上，借助河床深潭区和浅滩区交替布设，重构河流纵向水动力格局与生态梯度，促进生物多样性提升。通过“垂直—水平—纵向”多维度协同修复，有效降低入河污染，增加多样性微生境，促进物种栖息与繁殖，提升生态系统的碳固定能力。尤其适合在空间受限、岸壁高陡的深槽型河道中应用，修复效果显著、现实可操作性强。
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Abstract
Description
Technical Field
[0001] This utility model relates to the field of river regulation and water ecological restoration technology, specifically to an intensive and nature-friendly transformation structure for vertical deep channel riverbank protection. Background Technology
[0002] Traditional vertical revetments (such as concrete retaining walls and masonry slope protection) are widely used in urban river management due to their high structural stability and convenient construction. In particular, vertical deep-channel revetments, as a typical representative of this type of structure, are characterized by steep bank walls, near-vertical slopes, and overall rigidity of the revetment surface, which can significantly enhance the flood control and erosion resistance of rivers within limited urban spaces. However, in high-density cities, riverside spaces are often extremely limited, and vertical deep-channel revetments bring a series of prominent problems: First, insufficient filtration and regulation functions—excessive hardening and tight urban land use deprive riverside areas of ecological space for rainwater retention and purification. Rainwater carrying suspended solids, nitrogen, phosphorus, and other pollutants often flows directly into the river, weakening the riverbank's filtration and regulation functions in urban water environment management. Second, lack of ecological functions—steep and smooth facades lack vegetation growth conditions and animal habitats, resulting in extremely low biodiversity and reduced connectivity between aquatic and terrestrial ecosystems. Third, poor landscape harmony—hardened surfaces lack green coverage, resulting in low visual integration with the urban natural landscape and failing to meet citizens' dual needs for waterfront space and ecological aesthetics. Given the current constraints on urban land use, large-scale demolition of existing vertical structures or widening of the river channel towards the land is not feasible. This makes it crucial to solve the technical challenge of embedding efficient ecological restoration units that integrate rainwater purification, runoff regulation, habitat creation, and landscape enhancement functions within limited riverside spaces.
[0003] In recent years, to address the aforementioned issues, urban water environment restoration strategies both domestically and internationally have gradually shifted from traditional "hard protection" to "ecological revetment," giving rise to various ecological restoration technologies such as eco-bags and eco-concrete blocks, aiming to restore the function of the water-land transition zone and habitat diversity. However, existing restoration methods often focus on localized greening or the restoration of a single ecological function, or only on surface treatment of the bank slope, failing to fundamentally reconstruct the riverbed hydrological structure and habitat system. Especially in high-density cities, riverside space is extremely scarce, and traditional ecological restoration methods are difficult to integrate rainwater storage, pollutant filtration, and ecological buffering spaces under limited conditions. Faced with multiple challenges, there is an urgent need to develop restoration technologies that can be intensively configured in multiple vertical, horizontal, and longitudinal dimensions to further achieve multi-functional synergy in rainwater storage and purification, carbon sequestration enhancement, biodiversity restoration, and optimization of aquatic ecological connectivity. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, this application provides an intensive and nature-friendly modification structure for vertical deep channel riverbank protection, which synergistically enhances the overall ecosystem service function while ensuring the stability of the river structure and flood control safety.
[0005] The technical means adopted by this utility model to solve its technical problem is: an intensive and nature-friendly transformation structure for vertical deep channel riverbank protection, the improvement of which is that it includes a riverside enhanced rainwater filtration and storage system (1), a vertical rigid bank protection longitudinal module wetland purification system (2), a dike toe ecological protection system (3), and a riverbed morphology reshaping system (4), wherein,
[0006] The enhanced riverside rainwater filtration and storage system (1) is installed on the inner side of the revetment, and its core component is a composite ecological filter storage chamber (11); the composite ecological filter storage chamber (11) is installed underground near the revetment area or the low-lying area of the walkway.
[0007] The vertical rigid revetment longitudinal module wetland purification system (2) is located on the revetment slope and includes carbon sequestration type vegetation trough (21) and plant pile structure (22); the carbon sequestration type vegetation trough (21) is arranged in layers along the vertical bank slope, and the plant pile structure (22) is set at the toe of the slope.
[0008] The embankment toe ecological protection system (3) is installed at the toe of the deep channel revetment embankment, and together with the riverside enhanced rainwater filtration and storage system (1), it forms a transverse buffer zone from the land to the water body, including a porous filter strip (31) and an aquatic plant strip (32); the porous filter strip (31) extends from the bank to the river direction, and the aquatic plant strip (32) is installed at the outer edge and gaps of the porous filter strip (31);
[0009] The riverbed morphology reshaping system (4) is deployed in the riverbed area, including deep pool area (41) and shallow beach area (42), to reconstruct the longitudinal hydrodynamic pattern and ecological gradient of the river.
[0010] The composite ecological filter storage chamber (11) described in the above technical solution includes several modular units with dimensions of 1500×500×500mm. These modular units can be spliced together according to site conditions. After splicing, the overall width is 0.5-5m and the depth is 1.5-4.5m. The composite ecological filter storage chamber (11) has a two-layer unit structure. The first layer unit is a composite filter layer with a height of 700mm. From top to bottom, it consists of a gravel layer (111) with a particle size of 20-40mm and a depth of 250mm, a coarse sand layer (112) with a depth of 250mm, and a biological filter material (113) with a thickness of 200mm. The second layer unit has a height of 800mm and is composed of high-strength plastic honeycomb modules (114). The composite ecological filter storage chamber (11) is used to realize the infiltration, purification and storage of rainwater.
[0011] The carbon-fixing vegetation trough (21) described in the above technical solution has a size of 2000×1000×500mm, and is filled with a soil layer (211) with a thickness of 600-650mm and a gravel layer (212) with a thickness of 300-350mm; the plant pile structure (22) is composed of pine round piles with a diameter of 10cm and a spacing of 0.6-1.0m, and the piles are filled with sand and planted with aquatic plants to form a three-dimensional green barrier.
[0012] The porous filter belt (31) described in the above technical solution includes a large stone belt (311) with a particle size of 30-60cm, a medium gravel belt (312) with a particle size of 10-20cm, and a small pebble belt (313) with a particle size of 5-10cm arranged sequentially from the bank to the river direction.
[0013] In the above technical solution, the riverbed elevation of the deep pool area (41) is relatively low and is composed of loose sand and gravel; the riverbed elevation of the shallow beach area (42) is relatively high and is composed of rough and dense pebbles. The deep pool area (41) and the shallow beach area (42) are arranged in a staggered manner to create diverse hydraulic conditions.
[0014] The beneficial effects of this utility model are:
[0015] This utility model's highly efficient, intensive, and nature-friendly vertical deep-channel revetment structure overcomes the limitations of traditional vertical revetments, such as ecological deficiencies, severe hardening, and limited space in riverside renovation. It offers significant advantages in rainwater purification and storage, habitat restoration, carbon sequestration enhancement, and strong spatial adaptability. Vertically, the configuration of carbon-fixing vegetation troughs and plant pile structures creates a three-dimensional vertical wetland from the bank to the water, enhancing vertical ecological connectivity. Horizontally, the combination of a riverside enhanced rainwater filtration and storage system and an ecological shelter system at the embankment toe forms a transverse buffer zone from land to water, mitigating rainwater erosion during heavy rains, providing diverse microhabitats, and achieving comprehensive restoration and functional enhancement of the water-land system. Vertically, the alternating layout of deep pools and shallow beaches in the riverbed reconstructs the longitudinal hydrodynamic pattern and ecological gradient of the river, promoting biodiversity. Through multi-dimensional synergistic restoration across vertical, horizontal, and longitudinal dimensions, it effectively reduces pollution entering the river, increases diverse microhabitats, promotes species habitat and reproduction, and enhances the ecosystem's carbon sequestration capacity. It is particularly suitable for use in deep-channel waterways with limited space and steep banks, with significant restoration effects and strong practical operability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of an intensive and nature-friendly modification structure for a vertical deep-channel riverbank protection, as shown in an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of the overall structure of the composite ecological filter storage tank shown in an embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of the carbon-fixing vegetation trough shown in an embodiment of the present invention;
[0019] Figure 4 This is a schematic cross-sectional view of the porous permeation belt shown in an embodiment of the present invention.
[0020] In the diagram: 1. Riverside enhanced rainwater filtration and storage system; 2. Vertical rigid revetment longitudinal modular wetland purification system; 3. Embankment toe ecological protection system; 4. Riverbed morphology reshaping system; 11. Composite ecological filter storage chamber; 21. Carbon sequestration vegetation trough; 22. Plant pile structure; 31. Multi-pore filter strip; 32. Aquatic plant strip; 41. Deep pool area; 42. Shallow beach area; 111. Gravel layer; 112. Coarse sand layer; 113. Biological filter media; 114. Module; 211. Soil layer; 212. Crushed stone layer; 311. Large stone strip; 312. Medium gravel strip; 313. Small pebble strip. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.
[0023] like Figure 1 As shown, this application provides an intensive, nature-friendly modification structure for vertical deep-channel riverbank revetments, including a riverside enhanced rainwater filtration and storage system (1), a vertical rigid revetment longitudinal modular wetland purification system (2), a dike toe ecological protection system (3), and a riverbed morphology reshaping system (4), wherein,
[0024] The enhanced riverside rainwater filtration and storage system (1) is installed on the inner side of the revetment, and its core component is a composite ecological filter storage chamber (11); the composite ecological filter storage chamber (11) is installed underground near the revetment area or the low-lying area of the walkway.
[0025] The vertical rigid revetment longitudinal module wetland purification system (2) is located on the revetment slope and includes carbon sequestration type vegetation trough (21) and plant pile structure (22); the carbon sequestration type vegetation trough (21) is arranged in layers along the vertical bank slope, and the plant pile structure (22) is set at the toe of the slope.
[0026] The embankment toe ecological protection system (3) is installed at the toe of the deep channel revetment embankment, and together with the riverside enhanced rainwater filtration and storage system (1), it forms a transverse buffer zone from the land to the water body, including a porous filter strip (31) and an aquatic plant strip (32); the porous filter strip (31) extends from the bank to the river direction, and the aquatic plant strip (32) is installed at the outer edge and gaps of the porous filter strip (31);
[0027] The riverbed morphology reshaping system (4) is deployed in the riverbed area, including deep pool area (41) and shallow beach area (42), to reconstruct the longitudinal hydrodynamic pattern and ecological gradient of the river.
[0028] Through the above embodiments, the enhanced rainwater filtration and storage system (1) can collect and purify initial rainwater through the composite ecological filter storage chamber (11) to achieve runoff regulation and reuse; the vertical hard revetment longitudinal module wetland purification system (2) forms a three-dimensional vegetation community through carbon-fixing vegetation trough (21) and plant pile structure (22), which can achieve slope stability, water quality purification and carbon sink enhancement; the embankment toe ecological shelter system (3) provides fish shelter and microbial attachment space through multi-pore filter belt (31) and aquatic plant belt (32), which enhances the complexity of aquatic habitat; the riverbed morphology reshaping system (4) forms a diversity of flow velocity, water depth and matrix by alternating deep pool area (41) and shallow beach area (42) in the longitudinal direction, which is conducive to fish breeding and habitat, and promotes water reoxygenation and self-purification. Through the combined deployment of the above four systems, this utility model achieves multi-dimensional restoration of the river in the "vertical-horizontal-longitudinal" dimensions, including rainwater regulation, slope vegetation restoration, aquatic habitat expansion, and riverbed dynamic optimization, under the limited conditions of deep-channel vertical revetment. This significantly enhances the river's comprehensive ecological function and adaptability.
[0029] In one possible implementation, such as Figure 2As shown, the composite ecological filter storage chamber (11) is a modular unit with dimensions of 1500×500×500mm. Several modular units can be spliced together according to site conditions. Depending on site requirements, they can be spliced laterally to a width of 0.5-5m and a depth of 1.5-4.5m. The composite ecological filter storage chamber (11) has a two-layer unit structure. The first layer unit is a composite filter layer with a height of 700mm. From top to bottom, it consists of a gravel layer (111) with a particle size of 20-40mm and a depth of 250mm, a coarse sand layer (112) with a depth of 250mm, and a biological filter material (113) with a thickness of 200mm. The second layer unit has a height of 800mm. Its interior is composed of high-strength plastic honeycomb modules (114). While ensuring the load-bearing capacity of the upper surface, it forms a stable water storage space 124. The overall structure can realize the infiltration, purification and storage of rainwater. After being stored in the honeycomb structure, it can be discharged into the river during heavy rain. The composite ecological filter storage chamber (11) can be efficiently set up in the walkway area along the riverbank, which can not only reduce surface runoff and reduce runoff pollution in a localized manner, but also form a decentralized water storage point, increasing the flood absorption capacity of the urban riverbank belt during the flood season.
[0030] In an exemplary embodiment, for example in an urban waterfront promenade area with a width of 5m, the composite ecological filter storage tank (11) has a horizontal splicing width of 1m and a longitudinal depth of 3m, and its total length is coordinated with the linear layout of the promenade.
[0031] In one possible implementation, such as Figure 3 As shown, the carbon-fixing vegetation trough (21) has dimensions of 2000×1000×500mm and adopts a modular assembly structure. The trough is equipped with a detachable support frame and quick-installation slots, which are distributed vertically along the wall. The spacing should be controlled between 0.5 and 1.5 meters. It can be flexibly arranged according to different heights and bank sections to provide stable growth and climbing structures for plants, as well as habitat and activity space for animals, thereby enhancing longitudinal ecological connectivity. The carbon-fixing vegetation trough (21) is filled with a soil layer (211) with a thickness of 600-650mm to fill nutrient soil and provide a substrate for the growth of wetland plants, and a gravel layer (212) with a thickness of 300-350mm to ensure smooth water seepage and a stable base.
[0032] The plant pile structure (22) consists of pine logs with a diameter of 10cm and a spacing of 0.6-1.0m. The spaces between the logs are filled with sand and planted with aquatic plants to form a three-dimensional green barrier. The pine logs are woven together with branches to form a fence, and native aquatic plants are planted between them to form a three-dimensional green barrier. The roots of the vegetation and the substrate adsorb particulate matter and pollutants, promoting water purification; and the plants fix carbon dioxide through photosynthesis, improving the carbon sequestration capacity of the bank protection.
[0033] In an exemplary embodiment, for example, in the renovation of a vertical revetment with a slope height of 5m, three layers of carbon sequestration vegetation troughs (21) are arranged from top to bottom along the slope with a spacing of 0.5m. Each carbon sequestration vegetation trough (21) is planted with wetland plants such as reeds and cattails. Plant pile structures (22) are set at the foot of the slope, with pine round piles of 10cm in diameter and a spacing of 0.8m. Combined with vertical bundles of willow branches and backfilling with sand, a stable support and vertical flow wetland system is formed. After the implementation of the vertical hard revetment longitudinal module wetland purification system (2), a green cover layer can be quickly formed on the hard vertical surface. The plant leaves effectively reduce the temperature of the revetment surface and the surrounding environment through transpiration, alleviating the urban heat island effect; providing ecological space for insects, birds, etc. to forage, inhabit and move; the plant roots and the substrate together constitute an efficient biological filtration system, which can effectively improve water quality; in addition, the vegetation system fixes carbon dioxide in the atmosphere through photosynthesis, which significantly improves the carbon sequestration capacity of the revetment unit.
[0034] In one possible implementation, such as Figure 4 As shown, the porous filter belt (31) includes, from the bank to the river direction, a large stone belt (311) with a particle size of 30-60 cm, used to form a framework and dissipate water flow energy; a medium gravel belt (312) with a particle size of 10-20 cm, which serves as a transition layer and a stabilizing effect; and a small pebble belt (313) with a particle size of 5-10 cm, used to form a fine pore layer and increase micro-habitat space. The porous filter belt (31) provides shelter and habitat space for fish, benthic animals and plankton, expands the attachment area of microbial communities, and thus increases aquatic biodiversity. In addition, the surface of the natural material of the substrate can serve as an attachment substrate for algae and microorganisms, forming a primary production community and promoting water self-purification.
[0035] The aquatic plant zone (32) includes submerged and emergent plants, including but not limited to cattails, sweet flag, reeds and goldfish algae, whose roots can penetrate into the pebble and gravel layer and combine with the substrate to form a composite structure, further realizing the absorption of nutrients such as nitrogen and phosphorus, and improving the efficiency of pollutant reduction.
[0036] In an exemplary embodiment, the porous filter belt (31) comprises 40% large stone belt (311), 35% medium gravel belt (312), and 25% small pebble belt (313), forming a porous and stable matrix. Aquatic plants, including cattails, sweet flag, and eelgrass, are planted in the middle, with water lilies interspersed locally. After the implementation of the embankment ecological shelter system (3), a complex three-dimensional habitat environment can be formed. Through the high specific surface area and porous structure, it provides an attachment substrate for microorganisms (bacteria, fungi) and algae, forming a powerful "biofilm" purification system that can effectively degrade organic pollutants in the water. The porous space becomes an ideal shelter for small fish, shrimp, crabs, aquatic insects, etc., to avoid predators and turbulence, enhancing aquatic biodiversity. The structure itself can effectively consume water flow energy, weaken the direct scouring of waves and water flow on the vertical bank foundation, and play a role in protecting the stability of the bank foundation. At the same time, the plant roots further stabilize the filler, and the plants themselves can also absorb nutrients such as nitrogen and phosphorus from the water, thus synergistically enhancing the water purification function.
[0037] In one possible implementation, the deep pool area (41) is located at the apex of the meandering river channel, with a relatively low riverbed elevation. It is formed by dredging and has a cross-sectional shape that is 25% narrower than that of the shallow shoal. It is deeper and has a slower flow rate, and is composed of loose gravel, making it suitable for fish to overwinter and spawn. The shallow shoal area (42) is located at the end of the bend of the meandering river. Its length depends on the longitudinal slope. It is shallower and has a relatively higher riverbed elevation. It is composed of coarse and dense pebbles and has a relatively higher flow rate. The slope ratio of the shallow shoal area 42 is controlled at 1:3 to 1:5. The deep pool area (41) and the shallow shoal area (42) are arranged in a staggered manner to create diverse hydraulic conditions. This helps to fix the substrate and improve primary productivity, which is conducive to the diversified distribution of benthic organisms, provides diverse habitats, and adapts to the ecological needs of different water levels and seasonal changes.
[0038] In an exemplary embodiment, within a cross-section of 40m wide and 10m high, a composite riverbed structure of "deep pool-shallow shoal" is reshaped. The shoal area (42) accounts for approximately 60% of the total area, with a water depth of 0.5m, and is distributed along the gentle slopes on both banks. The deep pool area (41) accounts for approximately 40% of the total area, with a depth of 3m, and is located in the center of the river, enhancing the water storage capacity. Submerged plants such as Vallisneria natans and Potamogeton crispus are planted in the shoal area (42), while cattails and reeds are planted along the edges, forming a composite ecological pattern of "fish farming in the pool and grass cultivation on the shoal," thereby enhancing the diversity of aquatic habitats. After the implementation of the riverbed morphology reshaping system (4), alternating changes in flow velocity and water depth are formed in the longitudinal direction, increasing the diversity of water flow. The slow-flowing environment of the deep pool is conducive to fish aggregation and reproduction, while the hydrodynamic conditions of the shoal area are suitable for the diversified distribution of benthic organisms. Overall, the micro-topographical changes in the riverbed can break the original single flow pattern and promote the improvement of the river's reoxygenation and self-purification functions.
[0039] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. An intensive, nature-friendly modification structure for vertical deep-channel riverbank protection, characterized in that, It includes a riverside enhanced rainwater filtration and storage system (1), a vertical rigid revetment longitudinal modular wetland purification system (2), an embankment toe ecological protection system (3), and a riverbed morphology reshaping system (4), among which, The enhanced riverside rainwater filtration and storage system (1) is installed on the inner side of the revetment, and its core component is a composite ecological filter storage chamber (11); the composite ecological filter storage chamber (11) is installed underground near the revetment area or the low-lying area of the walkway. The vertical rigid revetment longitudinal module wetland purification system (2) is located on the revetment slope and includes carbon sequestration type vegetation trough (21) and plant pile structure (22); the carbon sequestration type vegetation trough (21) is arranged in layers along the vertical bank slope, and the plant pile structure (22) is set at the toe of the slope. The embankment toe ecological protection system (3) is installed at the toe of the deep channel revetment embankment, and together with the riverside enhanced rainwater filtration and storage system (1), it forms a transverse buffer zone from the land to the water body, including a porous filter strip (31) and an aquatic plant strip (32); the porous filter strip (31) extends from the bank to the river direction, and the aquatic plant strip (32) is installed at the outer edge and gaps of the porous filter strip (31); The riverbed morphology reshaping system (4) is deployed in the riverbed area, including deep pool area (41) and shallow beach area (42), to reconstruct the longitudinal hydrodynamic pattern and ecological gradient of the river.
2. The intensive and nature-friendly modification structure for vertical deep-channel riverbank protection according to claim 1, characterized in that, The composite ecological filter storage chamber (11) includes several modular units with dimensions of 1500×500×500mm. These modular units can be spliced together according to site conditions. After splicing, the overall width is 0.5-5m and the depth is 1.5-4.5m. The composite ecological filter storage chamber (11) has a two-layer unit structure. The first layer unit is a composite filter layer with a height of 700mm. From top to bottom, it consists of a gravel layer (111) with a particle size of 20-40mm and a depth of 250mm, a coarse sand layer (112) with a depth of 250mm, and a biological filter material (113) with a thickness of 200mm. The second unit is 800mm high and is composed of high-strength plastic honeycomb modules (114). The composite ecological filter storage chamber (11) is used to realize the infiltration, purification and storage of rainwater.
3. The intensive and nature-friendly modification structure for vertical deep-channel riverbank protection according to claim 1, characterized in that, The carbon-fixing vegetation trough (21) has a size of 2000×1000×500mm, and is filled with a soil layer (211) with a thickness of 600-650mm and a gravel layer (212) with a thickness of 300-350mm. The plant pile structure (22) is composed of pine wood round piles with a diameter of 10cm and a spacing of 0.6-1.0m. The piles are filled with sand and planted with aquatic plants to form a three-dimensional green barrier.
4. The intensive and nature-friendly modification structure for vertical deep-channel riverbank protection according to claim 1, characterized in that, The porous filter belt (31) includes a large rock belt (311) with a particle size of 30-60cm, a medium gravel belt (312) with a particle size of 10-20cm, and a small pebble belt (313) with a particle size of 5-10cm, arranged sequentially from the bank to the river direction.
5. The intensive and nature-friendly modification structure for vertical deep-channel riverbank protection according to claim 1, characterized in that, The deep pool area (41) has a relatively low riverbed elevation and is composed of loose sand and gravel; the shallow beach area (42) has a relatively high riverbed elevation and is composed of rough and dense pebbles. The deep pool area (41) and the shallow beach area (42) are arranged in a staggered manner to create diverse hydraulic conditions.