Stepped type flood drainage ecological flood bank

Abstract

The utility model relates to a backdrop type flood drainage ecological flood bank, which belongs to the technical field of river bank hydraulic engineering and comprises a dam body, a step structure is formed on one side of an upstream face of the dam body, a plurality of step faces from a river face to a dam crest are formed on the step structure, and a plurality of grooves are formed in any step face along the extending direction of the dam. Each groove is provided with a gabion filled with planting soil, the shape of each gabion is consistent with that of each groove, the planting soil is used for planting a green belt, a water seepage layer is arranged below each groove, a diversion canal is arranged below each water seepage layer, and each diversion canal is communicated with the groove of the next step surface; the structural strength is high, and meanwhile the greening attractiveness is considered.

Description

Technical Field

[0001] This utility model belongs to the field of riverbank water conservancy engineering technology, specifically relating to a stepped drainage ecological flood control dike. Background Technology

[0002] Currently, many cities are built around rivers, and rivers pass through urban areas. In order to prevent the river from flooding into the urban areas during the flood season, and also to improve the aesthetics of the boundary between the urban areas and the river, flood control dikes are usually built on both sides of the river.

[0003] For narrow river sections, vertical gabion cages are typically used to construct the upstream side of the dam for flood control, reducing the impact of water flow on the upstream side of the dam. However, some groundwater can seep into the dam structure from the bottom, causing localized settlement at the base and leading to partial collapse of the gabions on top. This reduces the gabions' resistance to water flow impacts on the riverbank, thus decreasing the structural stability of the dam. Therefore, further improvements are needed. Chinese Patent CN219992335 addresses this issue. U discloses a flood control dike, including a main body of the dike and a gabion wall set on the water-facing side of the main body of the dike. The gabion wall includes a plurality of gabions and filling layers set inside the gabions. The plurality of gabions are stacked in a stepped manner along the height direction of the water-facing side of the main body of the dike. Vertically arranged reinforcing rods are set between adjacent gabions. The two ends of the reinforcing rods are respectively inserted into the filling layers inside two adjacent gabions. Tie wires are set between adjacent gabions to fix them to each other. It has the beneficial effect of improving the stability of the dike.

[0004] However, in the above-mentioned structure, the water-facing side of the dam is directly composed of several gabion stones. The water-facing side needs to withstand the continuous scouring of the water flow. The structure composed purely of gabion stones is weaker in its ability to withstand scouring compared to a solid reinforced concrete structure. Therefore, a stepped drainage ecological flood control embankment with strong structural strength while taking into account the aesthetics of greening is needed. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a stepped drainage ecological flood control dike, which features strong structural strength while also being aesthetically pleasing and green.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A stepped drainage ecological flood control dike includes a main body of the dike. The water-facing side of the main body of the dike has a stepped structure. The stepped structure has several stepped surfaces from the river surface to the top of the dike. Each stepped surface is provided with several grooves along the extension direction of the dike. Each groove is provided with a gabion filled with planting soil. Each gabion has the same shape as the groove. The planting soil is used to plant green belts.

[0008] A permeable layer is provided below any of the grooves, a water diversion channel is provided below any of the permeable layers, and any of the water diversion channels is connected to the groove of the next stepped surface.

[0009] As a preferred technical solution of this utility model, the water diversion channel is formed by excavating a groove on the water-facing surface of the main body of the dam, the axial cross section of the water diversion channel is trapezoidal, and the width of the water diversion channel on the side closer to the water-facing surface is smaller than that on the side farther from the water-facing surface.

[0010] As a preferred embodiment of this utility model, the distance between any of the grooves and the adjacent grooves is 3 to 5 times its own dimension along the extension direction of the dam.

[0011] As a preferred embodiment of this utility model, any of the water diversion channels is provided with an anti-fall net, which is a steel wire mesh.

[0012] As a preferred technical solution of this utility model, any of the stepped surfaces are paved with walkways, and the extension direction of the walkways is consistent with the extension direction of the main body of the dam.

[0013] As a preferred embodiment of this utility model, a railing is provided on the water-facing side of any of the stepped surfaces.

[0014] As a preferred technical solution of this utility model, a plurality of ecological monitoring stations are provided on any of the stepped surfaces along the extension direction of the main body of the embankment. The plurality of ecological monitoring stations are arranged along the extension direction of the main body of the embankment and are used to monitor the growth of the green belt.

[0015] As a preferred embodiment of this utility model, any of the ecological monitoring stations is provided with a lighting lamp at the top, and the lighting lamp is positioned facing the stepped surface.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) By distributing the grooves planted with green belts in such a way that there are gaps between adjacent grooves, when water flows, most of the water acts on the surface of the main body of the dam, and the main body of the dam plays an anti-erosion role to resist the water flow, thus improving the structural strength. At the same time, the grooves set at intervals can be used to set up green belts for planting, ensuring the aesthetics of the greening.

[0018] (2) The planting soil in the gabion stone cages of each step surface that is flush with the upper end and connected to the permeable interlayer at the lower end can play the role of guiding the water in the nearby steps into the irrigation canal, so that the water can flow down layer by layer and eventually flow into the river.

[0019] (3) By setting up activity spaces with stepped surfaces, the flood control dike has formed several waterfront platforms, which improves the leisure effect. Attached Figure Description

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a side cross-sectional view of the present invention.

[0022] Figure 2 This is a front view structural diagram of the present utility model;

[0023] Figure 3 This is a top view of the structure of this utility model;

[0024] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the axial cross-sectional structure of the water diversion channel of this utility model.

[0026] Explanation of key component symbols:

[0027] In the diagram: 1. Main body of the dam; 11. Groove; 12. Stepped surface; 13. Gabion cage; 14. Water diversion channel; 15. Ecological monitoring station; 16. Permeable layer; 17. Fall protection net. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0029] Please see Figure 1-5 A stepped drainage ecological flood control dike includes a main body 1, with a stepped structure formed on the water-facing side of the main body 1, and the stepped structure forming several stepped surfaces 12 from the river surface to the top of the dike.

[0030] Specifically, the water-facing side of the main body of the dam 1 is stepped, the top of the dam 1 is flat, and the water-facing side of the main body of the dam 1 is connected to the riverside road or sidewalk. At this time, the cross-sectional shape of the water-facing side of the main body of the dam 1 is stepped.

[0031] The stepped structure on the water-facing side forms several stepped surfaces 12, and these stepped surfaces 12 form several planes that are parallel to the ground and gradually increase in height along the direction from the river to the top of the dam.

[0032] When in use, the dam crest and several stepped surfaces 12 can be connected by stairs. Pedestrians can walk up to the stepped surfaces 12 via the stairs. The stepped surfaces 12 form a waterfront platform and activity space, which increases the activity area compared to the traditional flood control dike structure with a trapezoidal cross section.

[0033] In the above process, the activity space composed solely of reinforced concrete stepped surface 12 has a rather monotonous color and lacks aesthetic appeal. The existing solution is to form the water-facing side of the entire dam with several gabion cages 13. Planting soil is placed inside the gabion cages 13, and then green plants are planted on the planting soil. However, the water-facing side needs to withstand the continuous erosion of the water flow. The structure composed solely of gabion cages 13 is weaker in its ability to withstand erosion compared to a solid reinforced concrete structure. Therefore, several grooves 11 are provided along the extension direction of the dam on any stepped surface 12. The height of any groove 11 is 1 / 20 to 1 / 10 of the height of a single step in the stepped structure. A gap is left between two adjacent grooves 11 along the extension direction of the main body of the dam 1. A gabion cage 13 of the same shape as the groove 11 is placed in any groove 11. Planting soil is filled inside any gabion cage 13, and a green belt is planted on top of the planting soil.

[0034] Specifically, for each step surface 12 in the stepped structure, 1 / 20 to 1 / 10 of the height of a single step is hollowed out vertically downward from the edge of the step surface 12 near the water body. The vertical gap formed by the hollowing out constitutes a groove 11, and each groove 11 is a vertical quadrangular prism space.

[0035] Each stepped surface 12 has a groove 11 at regular intervals on its water-facing side, and several grooves 11 are arranged along the extension direction of the main body of the dam 1.

[0036] In each gap, gabion cages 13 and permeable layers 16 are placed in a vertical stack. The gabion cages 13 and permeable layers 16 are stacked vertically and have the same shape as the gap. The gabion cages 13 are filled with planting soil and a green belt is planted on top of the planting soil. Since the gabion cages 13 and the gap have the same shape, the top of the gabion cages 13 is flush with the step surface 12. At this time, the green belt planted on top of the planting soil is also at the top of the step surface 12. The green belt, gabion cages 13 and planting soil form a sunken green belt.

[0037] Meanwhile, the permeable layer 16 can be a wire cage filled with gravel, which can evenly treat the water from the top and discharge it downwards.

[0038] A water diversion channel 14 is provided below any permeable layer 16, and any of the water diversion channels 14 is connected to the groove 11 of the next stepped surface 12;

[0039] Specifically, the water diversion channel 14 is formed by excavating a groove on the water-facing surface of the dam body 1. For each groove 11 of the stepped surface 12, the water diversion channel 14 is flush with the lower end of the permeable layer 16 and extends downward to the surface of the next stepped surface 12. Then, it extends along the surface of the next stepped surface 12 to the groove of the next stepped surface 12. At this time, for the lower end of each groove 11, there is a groove set on the water-facing surface that communicates with the next groove 11. After the permeable layer 16 evenly treats the water from the top and discharges it downward, the water enters the water diversion channel 14 below the permeable layer 16 and then enters the groove 11 of the next stepped surface 12.

[0040] For the lowest step surface 12, since there is no next step surface 12 to connect to, no water channel 14 is set below the groove 11 on it. For the permeable layer 16 of the lowest step surface 12, the water body is below the side of the permeable layer 16 facing the water body. At this time, the permeable layer 16 of the lowest step surface 12 is used as the last link of the drainage chain, and the water flowing out from it enters the water body.

[0041] When water accumulates on the surface of the stepped surface 12, the water flows to the surface of the gabion 13 and then into the planting soil of the gabion 13. The water flows along the planting soil to the permeable layer 16. The permeable layer 16 evenly treats the water from the top and discharges it downwards. The water then enters the water channel 14 below the permeable layer 16 and then enters the groove 11 of the next stepped surface 12. The groove 11 of the next stepped surface 12 then guides the water to the groove 11 of the next stepped surface 12 according to the above path, and so on, until the water falls back into the water body layer by layer, thus completing the drainage function of the green belt.

[0042] Meanwhile, gaps are left between two adjacent grooves 11 on the same stepped surface 12, so that except for a small part of the surface of the dam body 1 which is hollowed out to place gabion cages 13 and green belts, the rest of the dam body 1 is a solid reinforced concrete structure. When the water flows, most of the water acts on the surface of the dam body 1, and the dam body 1 plays an anti-erosion role to resist the water flow and improve the structural strength.

[0043] At this time, several green belts are formed along the extension direction of the embankment, which complete the decorative function of the activity space formed by the main body of the embankment 1 and the stepped surface 12.

[0044] Meanwhile, by distributing the grooves 11 planted with green belts in such a way that gaps are left between adjacent grooves 11, when water flows, most of the impact is on the surface of the main body of the dam 1. The main body of the dam 1 plays an anti-erosion role and resists the erosion of the water flow, thereby improving the structural strength. At the same time, the grooves 11 arranged at intervals can be used to set up green belts for planting, ensuring the aesthetics of the greening. In addition, several grooves 11 and the water diversion channel 14 play a role in accumulating water and guiding it into the stone pile 2 and the river.

[0045] Meanwhile, through the water diversion channel 14 formed by the trench on the water-facing surface, when there is water accumulation on each step surface 12 except the highest step surface 12, the water flows into the water diversion channel 14 and enters the groove 11 connected to the lower end of the water diversion channel 14, and then drains down layer by layer to complete the drainage.

[0046] By setting up the water diversion channel 14, the coverage of the drainage structure can be increased, further ensuring the drainage function.

[0047] To balance structural strength when facing water flow impact and the aesthetics of greening, the distance between any groove 11 and its adjacent groove 11 in the direction of dam extension is 3 to 5 times its own dimension in the direction of dam extension.

[0048] When the distance between groove 11 and adjacent groove 11 is too small a multiple of its own dimension along the embankment extension direction, such as 2 times, the proportion of gabion 13 in the water-facing surface is too large, and the structural strength is low when facing the long-term impact of water flow. When the multiple is too large, such as 7 times, the proportion of green belt in the entire waterfront platform is too low, and the greening aesthetics are insufficient.

[0049] In the above structure, the water channel 14 is located in the activity space formed by the stepped surface 12, which may cause pedestrians to step into the water channel 14. Therefore, the edge of the drainage ditch is coated with waterproof paint, which can warn pedestrians.

[0050] Meanwhile, since part of the water channel 14 is located in the activity space formed by the stepped surface 12, there is a chance that a passerby's personal belongings will fall into the water channel 14. Therefore, a fall prevention net 17 is installed on any surface of the water channel 14 that is flush with the water-facing surface. The fall prevention net 17 is a wire mesh to prevent people from stepping on it or objects from falling in.

[0051] To enhance the activity experience in the activity space, a walkway is laid on any of the steps 12. The walkway extends in the same direction as the main body of the dam 1. Different materials and colors can be used for the walkway to improve its aesthetics. At the same time, since the walkway is higher than the step 12 it is on, the walkway is less affected when water accumulates on the surface of the step 12, thus improving the activity experience.

[0052] To prevent pedestrians in the activity space from falling into the water, railings are installed on the water-facing side of any step surface 12.

[0053] After several green belts are set up along the extension direction of the main body of the dam 1, it would be too much work for the workers to inspect and monitor the growth of each green belt. In order to achieve automatic monitoring, several ecological monitoring stations 15 are set up along the extension direction of the main body of the dam 1 on any step surface 12. The ecological monitoring stations 15 are arranged along the extension direction of the main body of the dam 1 and are used to monitor the growth of the green belts.

[0054] Specifically, the ecological monitoring station 15 includes at least a street lamp pole and a monitor installed on the top of the street lamp pole. The monitor is aimed at the green belt on the same level as the ecological monitoring station 15. The monitor is used to photograph the growth of the green belt. Optionally, the operator monitors the growth of the green belt through the monitor.

[0055] To improve the nighttime lighting conditions of the activity space on the stepped surface 12 by utilizing the structure of the ecological monitoring station 15, a lighting lamp is installed at the top of the street lamp pole of any ecological monitoring station 15, with the lighting lamp facing the stepped surface 12. At this time, each ecological monitoring station 15 and the lighting lamp together constitute a street lamp.

[0056] Working principle and usage process of this utility model:

[0057] When in use, the dam crest and several stepped surfaces 12 can be connected by stairs. Pedestrians can walk up to the stepped surfaces 12 via the stairs. The stepped surfaces 12 form a waterfront platform and activity space, which increases the activity area compared to the traditional flood control dike structure with a trapezoidal cross section.

[0058] When water accumulates on the surface of the stepped surface 12, the water flows to the surface of the gabion 13 and then into the planting soil of the gabion 13. The water flows along the planting soil to the permeable layer 16. The permeable layer 16 evenly treats the water from the top and discharges it downwards. The water then enters the water channel 14 below the permeable layer 16 and then enters the groove 11 of the next stepped surface 12. The groove 11 of the next stepped surface 12 then guides the water to the groove 11 of the next stepped surface 12 according to the above path, and so on, until the water falls back into the water body layer by layer, thus completing the drainage function of the green belt.

[0059] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A stepped drainage ecological flood control dike, characterized in that: The dam includes a main body, and a stepped structure is formed on the water-facing side of the main body. The stepped structure forms several stepped surfaces from the river surface to the top of the dam. Each stepped surface is provided with several grooves along the extension direction of the dam. Each groove is provided with a gabion filled with planting soil. Each gabion has the same shape as the groove. The planting soil is used to plant green belts. A permeable layer is provided below any of the grooves, a water diversion channel is provided below any of the permeable layers, and any of the water diversion channels are connected to the groove of the next stepped surface.

2. The stepped drainage ecological flood control dike according to claim 1, characterized in that: The water diversion channel is formed by excavating a trench on the water-facing surface of the main body of the dam. The axial cross-section of the water diversion channel is trapezoidal, and the width of the water diversion channel on the side closer to the water-facing surface is smaller than that on the side farther from the water-facing surface.

3. The stepped drainage ecological flood control dike according to claim 1, characterized in that: The distance between any of the grooves and the adjacent grooves is 3 to 5 times its own dimension along the direction of the dam's extension.

4. The stepped drainage ecological flood control dike according to claim 1, characterized in that: The surface of any of the aforementioned water diversion channels is provided with a fall-prevention net, which is a steel wire mesh.

5. A stepped drainage ecological flood control dike according to claim 1, characterized in that: Each of the stepped surfaces is paved with a walkway, and the walkway extends in the same direction as the main body of the dam.

6. The stepped drainage ecological flood control dike according to claim 1, characterized in that: A railing is provided on the water-facing side of any of the aforementioned steps.

7. A stepped drainage ecological flood control dike according to claim 1, characterized in that: A number of ecological monitoring stations are set up on any of the stepped surfaces along the extension direction of the main body of the dam. The ecological monitoring stations are arranged along the extension direction of the main body of the dam and are used to monitor the growth of the green belt.

8. A stepped drainage ecological flood control dike according to claim 7, characterized in that: Each of the aforementioned ecological monitoring stations is equipped with a lighting lamp at its top, and the lighting lamp is positioned facing the stepped surface.

Images