Flood control and drainage stepped green ecological revetment device

Abstract

The utility model discloses a kind of flood control drainage ladder type green ecological revetment device, including three-stage ladder type revetment structure and monitoring device, the three-stage ladder type revetment structure includes from river to bank slope top side successively for waterfront purification area, shrub buffer zone and arbor soil fixation area The side of waterfront purification area, shrub buffer zone and arbor soil fixation area is equipped with monitoring assembly, the side of arbor soil fixation area close to river is equipped with flood control assembly, adopt three-stage ladder type structure integration waterfront purification, shrub buffer and arbor soil fixation function, through riprapping layer and PVC perforated pipe composition composite drainage system, improve flood period drainage efficiency, enhance vegetation layer stability, give consideration to ecological restoration and scouring resistance, integration monitoring assembly and modular flood control baffle, realize the integration function of "flood control-drainage-ecology-monitoring", solve the problem that traditional revetment structure function is split, poor adaptability, while reducing operation and maintenance cost in the improvement of protection security.

Description

Technical Field

[0001] This utility model relates to the field of bank protection device technology, and in particular to a stepped green ecological bank protection device for flood control and drainage. Background Technology

[0002] In river management and riparian protection projects, traditional revetment structures suffer from problems such as limited functionality and insufficient ecological compatibility. While existing concrete gravity revetments can meet flood control requirements, their poor permeability and disruption of material exchange between the water body and the bank slope lead to a decline in riparian biodiversity. Although simple vegetation revetments have ecological functions, they are unable to withstand the impact of strong water flows during the flood season and are prone to soil erosion.

[0003] In existing technologies, sloping ecological protection slopes achieve certain ecological restoration effects through stepped vegetation zoning; however, their drainage systems often rely on single pipes, making them prone to blockages during heavy rains, and the stability of the vegetation planting layer is insufficient. While multi-purpose riverbank slope vegetation restoration structures incorporate a combination of maintenance and drainage channels, they lack a systematic flood control system, resulting in limited protection against sudden floods. Furthermore, most ecological revetments lack convenient water quality monitoring methods, making it difficult to monitor the dynamic changes of the riparian ecosystem in real time, leading to lagging maintenance and management.

[0004] To address the aforementioned shortcomings, this invention proposes a stepped green ecological bank protection device for flood control and drainage, which solves the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems and provide a stepped green ecological bank protection device for flood control and drainage. This utility model adopts a three-stage stepped structure to integrate the functions of waterfront purification, shrub buffering and tree soil stabilization. It forms a composite drainage system through a riprap layer and PVC perforated pipes, which improves drainage efficiency during the flood season, enhances the stability of the vegetation layer, and takes into account ecological restoration and erosion resistance. It integrates monitoring components and modular flood control barriers to realize the integrated function of "flood control-drainage-ecology-monitoring". It solves the problems of functional fragmentation and poor adaptability of traditional bank protection structures, and reduces operation and maintenance costs while improving protection safety.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a flood control and drainage stepped green ecological bank protection device, including a three-level stepped bank protection structure and a monitoring device. The three-level stepped bank protection structure includes a waterfront purification zone, a shrub buffer zone and a tree soil stabilization zone in sequence from the river channel to the top of the bank slope. A monitoring device is provided on one side of the waterfront purification zone, the shrub buffer zone and the tree soil stabilization zone, and a flood control component is provided on the side of the tree soil stabilization zone closest to the river channel.

[0007] Preferably, the waterfront purification area includes a riprap layer with PVC perforated pipes in the gaps between the riprap layers. The surface of the riprap layer is covered with double-layered vegetation bags, on which emergent plants are planted. The vegetation bags are stacked in an alternating pattern.

[0008] Preferably, the shrub buffer zone includes a maintenance trough and a drainage trough. The drainage trough is designed in a "V" shape with a bottom slope of 5°. Both ends of the drainage trough are connected to arc-shaped connecting pipes, which are connected to PVC perforated pipes in the waterfront purification area.

[0009] Preferably, the bottom layer of the tree soil stabilization area is paved with permeable concrete, and a layer of river sand and a layer of gravel are laid on top of the permeable concrete. The surface is covered with improved planting soil, and water-tolerant trees are planted on the improved planting soil.

[0010] Preferably, the thickness of the permeable concrete is 10cm, the thickness of the river sand layer is 20cm, the thickness of the crushed stone layer is 15cm, and the thickness of the improved planting soil is 30cm.

[0011] Preferably, the monitoring device specifically includes a water quality monitoring box installed on top of the tree soil stabilization area, and the data from the water quality monitoring box is transmitted to a mobile terminal via Bluetooth.

[0012] Preferably, the flood control component is placed in a reserved slot at the edge of the tree-stabilized soil area and an aluminum alloy flood control baffle, with the aluminum alloy flood control baffle being installed by embedding the reserved slot at the bottom.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses a combination of riprap layer and PVC perforated pipe, which can achieve natural water permeability through the gaps in the riprap, and quickly drain the water accumulated inside the bank slope with the help of directional pipe, solving the problem of "internal waterlogging" in traditional bank protection. The drainage efficiency during the flood season is improved. The double-layered staggered vegetation bags (lower layer of gravel + biochar, upper layer of improved soil) not only enhance the resistance to water flow impact through the honeycomb structure, but also use the adsorption properties of biochar to purify the initial rainwater. The emergent plants further absorb pollutants such as nitrogen and phosphorus, achieving synergistic water purification.

[0015] 2. The maintenance trough mainly uses a recycled plastic shell + sponge + planting soil. Through the water absorption and release characteristics of the sponge, it provides continuous water for shrubs during drought and quickly stores water during heavy rain, reducing slope runoff. The through-channel design of the shell ensures water circulation and improves vegetation survival rate. The "V"-shaped drainage trough has a bottom slope of 5° and an arc-shaped connecting pipe, which can quickly collect slope water and direct it into the PVC perforated pipe in the waterfront purification area, avoiding rainwater accumulation on the slope and erosion, while reducing the risk of blockage in the drainage system.

[0016] 3. The layered arrangement of permeable concrete, river sand, gravel, and improved planting soil not only ensures rainwater infiltration through the permeable concrete, but also filters impurities and regulates soil aeration through the gravel layer. Combined with the deep root system of water-tolerant trees, this significantly enhances the stability of the bank slope and improves the soil stabilization capacity. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the overall structure of this utility model.

[0018] In the diagram: 1. Waterfront purification zone; 11. Pumice layer; 12. PVC perforated pipe; 13. Planting bag; 14. Emergent plants; 2. Shrub buffer zone; 21. Maintenance trough; 22. Drainage trough; 23. Arc-shaped connecting pipe; 3. Tree soil stabilization zone; 31. Permeable concrete; 32. River sand layer; 33. Gravel layer; 34. Improved planting soil; 4. Monitoring device; 5. Flood control components; 51. Reserved slot; 52. Aluminum alloy flood control barrier. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, this utility model discloses a stepped green ecological revetment device for flood control and drainage, comprising a three-stage stepped revetment structure and a monitoring device 4. The three-stage stepped revetment structure includes, from the river channel to the upper bank slope, a waterfront purification zone 1, a shrub buffer zone 2, and a tree soil stabilization zone 3. The monitoring device 4 is installed on one side of the waterfront purification zone 1, the shrub buffer zone 2, and the tree soil stabilization zone 3. The flood control component 5 is installed on the side of the tree soil stabilization zone 3 closest to the river channel. The height difference between each step is 0.8-1.2 meters, and the overall slope is 1:2.5.

[0021] The three-tiered revetment structure is distributed sequentially from the river channel to the bank slope. Together with the monitoring components on one side and the flood control components on the river channel side of the tree-stabilized soil area, it forms a complete system of "protection-purification-monitoring-emergency". The tiered layout weakens the energy of water flow through layered blocking and reduces the risk of bank erosion. The monitoring component 4 realizes real-time monitoring of the surrounding environment of the revetment, and the flood control component 5 provides additional protection during the flood season, working together to ensure the stability and ecological function of the revetment under different working conditions.

[0022] The waterfront purification zone 1 includes a riprap layer 11, with PVC perforated pipes 12 installed in the gaps of the riprap layer 11. The surface of the riprap layer 11 is covered with double-layered vegetation bags 13, on which emergent plants 14 are planted. The vegetation bags 13 are stacked in an alternating manner.

[0023] The riprap layer 11 provides a permeable base for the waterfront area, adapting to water flow fluctuations and providing habitat for small aquatic organisms; the PVC perforated pipe 12 can quickly drain water accumulated inside the bank slope, preventing the slope from loosening due to rainwater infiltration; the double-layered staggered vegetation bags 13 form a stable vegetation growth base, and the staggered structure enhances the ability to resist water flow impact; the emergent plants 14 fix the vegetation bags through their root systems, while absorbing nutrients such as nitrogen and phosphorus in the water, achieving water purification and improving the ecological self-purification capacity of the riparian zone.

[0024] The shrub buffer zone 2 includes a maintenance trough 21 and a drainage trough 22. The drainage trough 22 is designed in a "V" shape with a bottom slope of 5°. Both ends of the drainage trough are connected to an arc-shaped connecting pipe 23, which is connected to the PVC perforated pipe 12 of the waterfront purification zone 1.

[0025] The maintenance trough 21 is embedded 50cm into the slope. Its outer shell is made of recycled plastic and its interior is filled with sponge and planting soil. The sponge is connected to the drainage trough 22 through a through groove. The "V"-shaped drainage trough 22 uses gravity to quickly collect rainwater from the slope and introduces it into the PVC perforated pipe 12 of the waterfront purification area 1 through the arc-shaped connecting pipe 23. This prevents rainwater from accumulating in the buffer zone and forming runoff, which reduces erosion of shrub roots and orderly introduces rainwater into the lower-level drainage system, improving the overall drainage efficiency.

[0026] The bottom layer of the tree soil stabilization zone 3 is laid with permeable concrete 31, and above the permeable concrete 31 are river sand layer 32 and gravel layer 33. The surface is covered with improved planting soil 34, and water-tolerant trees are planted on the improved planting soil 34.

[0027] The thickness of the permeable concrete layer 31 is 10cm, the thickness of the river sand layer 32 is 20cm, the thickness of the gravel layer 33 is 15cm, and the thickness of the improved planting soil 34 is 30cm.

[0028] A 10cm thick layer of permeable concrete 31 ensures permeability while providing stable support for the upper structure; a 20cm thick layer of river sand 32 filters impurities from infiltrating rainwater; a 15cm thick layer of gravel 33 enhances drainage and aeration; and a 30cm thick layer of improved planting soil 34 meets the root growth needs of water-tolerant trees. The reasonable combination of the thicknesses of each layer ensures structural stability, optimizes the water, air, and fertilizer conditions of the soil, and improves the survival rate of trees.

[0029] The monitoring device 4 specifically includes a water quality monitoring box installed on top of the tree soil stabilization area 3. The data from the water quality monitoring box is transmitted to a mobile terminal via Bluetooth.

[0030] The water quality monitoring box can collect water samples from different areas of the revetment and transmit the data to a mobile terminal via Bluetooth. This allows managers to remotely monitor water quality indicators such as pH and dissolved oxygen in real time, eliminating the cumbersome process of manual on-site sampling, enabling timely detection of water quality anomalies and the implementation of corresponding measures, thus improving the convenience and timeliness of revetment ecological management.

[0031] The flood control component 5 is placed in the reserved slot 51 and the aluminum alloy flood control baffle 52 at the edge of the tree soil stabilization zone 3. The aluminum alloy flood control baffle 52 is installed by embedding the reserved slot 51 at the bottom.

[0032] During the flood season, the baffles can be quickly assembled by embedding slots at the bottom to form a temporary flood barrier and prevent flooding. During the non-flood season, the baffles can be disassembled without affecting the ecological landscape and normal function of the revetment. The lightweight aluminum alloy material makes them easy to transport and install, and the slot design ensures the stability of the baffles after installation, thus improving the revetment's emergency response capability to sudden floods.

[0033] In the specific implementation of this utility model, during floods, the PVC perforated pipe 12 of the waterfront purification zone 1 accelerates the discharge of water accumulated inside the bank slope, and the riprap layer 11 disperses the impact force of the water flow; the "V"-shaped drainage channel 22 of the shrub buffer zone 2 quickly guides water through a 5° slope to avoid erosion of the slope surface by runoff, and the monitoring device 4 increases the sampling frequency to monitor the concentration of pollutants carried by the flood in real time.

[0034] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stepped green ecological revetment device for flood control and drainage, comprising a three-stage stepped revetment structure and a monitoring device (4), characterized in that: The three-tiered revetment structure includes a waterfront purification zone (1), a shrub buffer zone (2), and a tree soil stabilization zone (3) in sequence from the river channel to the upper bank slope. A monitoring device (4) is provided on one side of the waterfront purification zone (1), the shrub buffer zone (2), and the tree soil stabilization zone (3). A flood control component (5) is provided on the side of the tree soil stabilization zone (3) closest to the river channel.

2. The flood control and drainage stepped green ecological bank protection device according to claim 1, characterized in that: The waterfront purification area (1) includes a riprap layer (11), with PVC perforated pipes (12) installed in the gaps of the riprap layer (11), and a double-layered planting bag (13) laid on the surface of the riprap layer (11). Emergent plants (14) are planted on the planting bag (13), and the planting bags (13) are stacked in an alternating manner.

3. The flood control and drainage stepped green ecological bank protection device according to claim 1, characterized in that: The shrub buffer zone (2) includes a maintenance trough (21) and a drainage trough (22). The drainage trough (22) is designed in a "V" shape with a bottom slope of 5°. Both ends of the drainage trough are connected to an arc-shaped connecting pipe (23), which is connected to the PVC perforated pipe (12) of the waterfront purification area (1).

4. The flood control and drainage stepped green ecological bank protection device according to claim 1, characterized in that: The bottom layer of the tree soil stabilization area (3) is laid with permeable concrete (31), and a layer of river sand (32) and a layer of gravel (33) are laid on top of the permeable concrete (31). The surface is covered with improved planting soil (34), and water-tolerant trees are planted on the improved planting soil (34).

5. The flood control and drainage stepped green ecological bank protection device according to claim 4, characterized in that: The thickness of the permeable concrete (31) is 10cm, the thickness of the river sand layer (32) is 20cm, the thickness of the crushed stone layer (33) is 15cm, and the thickness of the improved planting soil (34) is 30cm.

6. The flood control and drainage stepped green ecological bank protection device according to claim 1, characterized in that: The monitoring device (4) specifically includes a water quality monitoring box set on top of the tree soil stabilization area (3), and the data of the water quality monitoring box is transmitted to the mobile terminal via Bluetooth.

7. The flood control and drainage stepped green ecological bank protection device according to claim 1, characterized in that: The flood control component (5) is placed in the reserved slot (51) and aluminum alloy flood control baffle (52) at the edge of the tree soil stabilization area (3). The aluminum alloy flood control baffle (52) is installed by embedding the reserved slot (51) at the bottom.

Images