A seawall biological channel and a method for arranging the same

Abstract

The application discloses a seawall biological channel and a layout method thereof, and belongs to the technical field of migration channels. The seawall biological channel comprises a seawall, a biological channel is arranged through the seawall, the biological channel comprises an inlet and an outlet leading to an outer river and an inner seawall, a flow resistance component is arranged at the inlet, the flow resistance component comprises a drainage bin which is buried in a soil layer, a rotatable rotating plate which can be opened and closed is arranged in the drainage bin, a water supplement system and a sensing system are arranged in the biological channel, the water supplement system comprises a water supplement pipe which sprays water on plants and a rotating sleeve. The biological channel is arranged through the seawall body, can adapt to water level changes and prevent water flow from flowing back, and provides an environment suitable for and safe for the migration of organisms inside and outside the seawall.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of migration channel, and particularly relates to a seawall biological channel and a layout method thereof. BACKGROUND

[0002] The biological channel refers to a channel with a certain width, which is free from human activities and is used for migration of organisms. The channel connects the clothing fields, mountainous areas and urban green lands on both sides of the road, so that the organisms on both sides can communicate and maintain their original living habits. In order to resist the invasion of the tide, the residents living in the estuary coast build seawalls on a large scale, which play an important role in preventing the tide disaster, but at the same time, the seawalls block the migration channel between the land and the coast, leading to degradation of the coastal habitat, and ignoring the ecological protection demand of the coastal zone. Therefore, it is of great significance to restore and rebuild the biological migration channel of the coastal zone for the ecological seawall construction work.

[0003] In the prior art, the conventional measures for restoring the animal migration channel include arranging the gentle slope at intervals along the river, arranging the pipe culvert through the dike, selecting the porous roughened revetment material, and planting the climbing and hanging plants on the vertical dike. However, the above-mentioned traditional scheme will cause the unstable structure of the bank slope, and the conditions of the animals passing through the channel and the internal environment are difficult to know and control, which can easily cause the problems of channel blockage and abandonment.

[0004] KR1020060001883A of the Korean invention patent discloses an animal migration channel for waterway, which comprises two mirror image side walls, a channel plate is installed on the side wall to form an ecological channel, a support shaft is arranged between the side walls, and the channel plate can move on the support shaft. The invention is made of low specific gravity materials such as waste plastics, forms an animal migration channel with waterway and land, and is convenient for amphibians and aquatic organisms to pass through. However, the invention is arranged in communication with the water body, and when the water level on one side of the channel rises, the water body on the other side of the channel is easily backflowed. For the seawall arranged between the city and the external river, the invention can easily cause the damage to the environment on the city side. SUMMARY

[0005] The present application aims to provide a seawall biological channel and a layout method thereof, which can adapt to the water level change, dissipate the energy of the invading water body, and have the anti-backflow ability.

[0006] The technical scheme adopted by the present application to achieve the above-mentioned purpose is as follows:

[0007] A seawall biological channel, comprising: a seawall, a biological channel is arranged through the seawall, the biological channel comprises an inlet and an outlet, the seawall comprises an outer river close to the inlet and an inner seawall river close to the outlet, the inlet is provided with a flow resistance component for slowing down the water body, and a water supplement system and a camera are arranged on the top of the biological channel. The biological migrates by entering the biological channel through the inlet from the outer river beach and leaving from the outlet. When the water surface waves of the outer river impact the inlet of the biological channel, they first contact the flow resistance component and slow down, reducing the impact of water energy on the biological channel to ensure its structural strength, and also reducing the impact of the water body on the biological inside the channel, avoiding the impact of the biological migration, the camera on the top monitors the biological below, facilitating personnel to observe the population quantity and record.

[0008] Preferably, the inside bottom of the biological channel is sequentially laid with a pebble cushion layer, a sandy soil cushion layer and vegetation from bottom to top, and the water supplement system is arranged on the top of the biological channel close to the vegetation. The pebble cushion layer strengthens the structural strength of the channel bottom, at the same time forms a planting space for vegetation with the sandy soil, is conducive to creating an environment inside the channel, improves the biological migration effect, and at the same time the vegetation can absorb and decompose the dirt carried by the biological to optimize the internal environment, improve the service life and utilization rate of the biological channel.

[0009] Preferably, the flow resistance component comprises a flow guide bin in communication with the inlet, the inner wall of the flow guide bin is a cylindrical curved surface and a rotating plate is rotatably connected to the cylindrical curved surface, one end of the rotating plate is attached to the cylindrical curved surface, the other end of the rotating plate extends out of the flow guide bin and is provided with a float at the bottom, and the bottom of the flow guide bin is in communication with the outer river through a flow pipe, and the top of the flow guide bin is provided with a clamping block abutting against the rotating plate. The flow guide bin is in communication with the water body of the outer river through the flow pipe, the water level of the outer river changes synchronously with the water level in the flow guide bin, when the water level of the outer river is lower than the height of the inlet, the rotating plate maintains a horizontal posture to realize the connection of the biological into the biological channel, when the water level of the outer river rises, the side close to the outer river of the rotating plate floats up through the float, driving the rotating plate to rotate in the flow guide bin, at this time, one end of the rotating plate is in the cylindrical curved surface of the flow guide bin, and the other end is limited by the clamping block to form an isolation between the external water body and the inlet, preventing the water body from pouring into the biological channel to affect the inner seawall and the surrounding buildings, at the same time, the rotating plate extrudes the water body to be discharged from the flow pipe and the outside opening of the flow guide bin, eliminating the horizontal impact of water energy, which can effectively prevent the waves on the river surface from entering the biological channel to impact the sandy soil, avoiding the death of the vegetation root system and protecting the internal structure of the channel from being damaged.

[0010] Preferably, the side of the rotating plate close to the inlet is provided with screen openings at intervals, and the bottom cylindrical curved surface of the flow guide bin is provided with partition plates at axial intervals, the cross section of the partition plate is a fan ring and is arranged in cooperation with each screen opening. The biological larvae separated from the parent organism are too small in size to pass through the rotating plate with the flushing water, and can fall from the screen openings along with the water, the water is guided by the bottom cylindrical curved surface of the flow guide bin and discharged from the flow-through pipe, avoiding the death of non-migratory organisms entering the biological channel and causing the decrease of species diversity in the outer river, at the same time, the silt carried by the migratory organisms can also fall from the screen openings along with the water and be discharged from the flow-through pipe, preventing the accumulation of dirt at the inlet from affecting the passage of organisms, when the water level rises, the side of the rotating plate provided with screen openings rotates in the flow guide bin, so that each partition plate passes through the screen opening, on the one hand, preventing the water from seeping into the channel from below to cause backflow, on the other hand, forming multiple accelerated water flows between adjacent partition plates to be discharged from the flow-through pipe and the flow guide bin, which helps to improve the energy dissipation of the impact water and guide the rotating plate to prevent deformation during rotation to cause water leakage.

[0011] Preferably, the water replenishing system comprises a water replenishing pipe arranged at the top of the biological channel, one end of the water replenishing pipe in the biological channel is sleeved with a pipe sleeve, a flow-through opening is formed in the side wall of the pipe sleeve, a hole plate is arranged in the pipe sleeve, and an ultraviolet lamp is arranged in the pipe sleeve close to the flow-through opening. The water pump discharges water from the external water source to the water replenishing pipe, part of the water entering the pipe sleeve is discharged outward from the flow-through opening, and the other part is discharged downward from the hole plate, which disperses the water to reduce the impact of the water on the bottom vegetation and the sand cushion, prevents internal soil erosion, and the ultraviolet lamp sterilizes the dispersed water to reduce the probability of bacterial growth in the channel and improve the cleanliness of the organisms passing through.

[0012] Preferably, a bearing is arranged at the bottom of the outside of the pipe sleeve, a rotating sleeve is assembled outside the bearing, the rotating sleeve is an open-top cylindrical sleeve, multiple through grooves are arranged in the side wall of the rotating sleeve, the bottom end of each through groove is higher than the upper bottom surface of the rotating sleeve, and each through groove is connected with a bent plate outward. The air current carried by the wind on the river surface enters the biological channel from the inlet, the air current contacts with the multiple bent plates to make the rotating sleeve rotate relative to the pipe sleeve through the bearing, the water discharged outward through the flow-through opening accumulates in the rotating sleeve, which prolongs the time of sterilization of the water by the ultraviolet lamp and increases the contact surface between the ultraviolet and the water, thereby improving the sterilization effect, the water accumulates in the rotating sleeve until it overflows the bottom end of the through groove, the water is discharged from the through groove under the action of centrifugal force and is guided outward by the bent plate to be sprayed, which improves the spraying range of the sterilized water and is conducive to promoting the growth of vegetation in the channel to purify the biological migration channel, and the water discharged by the rotation can clean the camera to prevent fog from blocking the camera view, and the multiple bent plates rotating synchronously can buffer the flow rate of the air current to prevent the vegetation from being flattened by the strong air current, and also reduce the wind noise caused by the air current to disturb the passing organisms.

[0013] Preferably, a sensing system is arranged at the bottom of the biological channel, the sensing system comprising an environmental element sensor and a controller, the environmental element sensor being electrically connected to the water supplementing system through the controller. The environmental element sensor measures parameters such as humidity, temperature and wind speed in the channel to provide monitoring data, and the data are processed to control the water supplementing system to adjust the temperature and humidity, thereby realizing remote monitoring of the factors in the biological channel.

[0014] The present application has the following beneficial effects due to the rotating plate which rotates following the water level of the outer river: the floating block self-adapts to the water level of the outer river to drive the rotating plate to rotate to form a closure in the flow guide bin, thereby realizing automatic valve closing to prevent backflow; the rotating plate extrudes the water below to discharge the flow guide bin and the flow pipe when rotating, thereby dissipating the energy of the external water and protecting the structural strength of the biological channel; the sieve opening can cause non-migratory biological larvae to be discharged by the flow guide bin along with the water, thereby protecting the environment in the biological channel and the biodiversity of the outer river; the partition plate cooperates with the sieve opening to isolate the water below, thereby forming accelerated water streams to improve the efficiency of the water; the water supplementing pipe divides the water through the orifice plate and the pipe sleeve, thereby preventing the loss of silt caused by the supplemented water; the rotatable rotating sleeve improves the effect of killing the water by the ultraviolet lamp and forms a larger spraying range, which is helpful to the growth of vegetation and can also prevent the fog from blocking the top camera. Therefore, the present application is a seawall biological channel which can adapt to the change of water level, dissipate the energy of the invading water and has the ability of preventing backflow, and a layout method thereof. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the application of the biological channel;

[0016] Figure 2 is a schematic view of the longitudinal section of the biological channel;

[0017] Figure 3 is a schematic view of the transverse section of the biological channel;

[0018] Figure 4 is a schematic view of the layout position of the flow resistance assembly;

[0019] Figure 5 is a schematic view of the longitudinal section of the flow guide bin;

[0020] Figure 6 is a schematic view of the connection between the rotating sleeve and the bent plate;

[0021] Figure 7 is a schematic view of the half section of the water supplementing pipe;

[0022] Figure 8 is a schematic view of the layout method of the present application.

[0023] Reference numerals: 1. Seawall; 10. Top road; 11. Back slope; 12. Front slope; 2. Outer river; 3. Inner canal; 4. Biological passage; 40. Inlet; 41. Outlet; 42. Pebble cushion layer; 43. Sand cushion layer; 44. Vegetation; 5. Flow-blocking component; 50. Diversion chamber; 51. Rotating plate; 52. Flow pipe; 53. Clamping block; 54. Screen; 55. Partition; 56. Water supply system; 60. Water supply pipe; 61. Pipe sleeve; 62. Flow outlet; 63. Orifice plate; 64. Ultraviolet lamp; 65. Bearing; 66. Rotating sleeve; 67. Through groove; 68. Bend plate; 7. Camera; 8. Sensing system. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings:

[0025] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] See appendix Figure 1 -Appendix Figure 2 A seawall biological passage 4 includes: a seawall 1, the seawall 1 including a top road 10 for traffic above it, a back slope 11 located on the side of the top road 10 near the inner river 3, and a front slope 12 located on the side of the top road 10 near the outer river 2.

[0027] A biological channel 4 is installed below the seawall 1. The biological channel 4 includes an inlet 40 and an outlet 41. The seawall 1 includes an outer river 2 near the inlet 40 and an inner river 3 near the outlet 41. The inlet 40 is equipped with a flow-blocking component 5 to slow down the water. A water replenishment system 6 and a camera 7 are installed on the top of the biological channel 4.

[0028] It should be noted that "Outer River 2" refers to the river channel outside the seawall 1, and "Inner Pond River 3" refers to the artificial protective river built inside the seawall 1 to protect its safety.

[0029] The organisms migrate from the beach of the outer river 2 through the inlet 40 into the biological channel 4 and leave through the outlet 41. When the waves on the surface of the outer river 2 impact the inlet 40 of the biological channel 4, they first come into contact with the flow-blocking component 5 and slow down, reducing the impact of water energy on the biological channel 4 to ensure its structural strength and also reducing the impact of water on the organisms inside the channel, preventing the organisms from being unable to migrate due to the impact. The camera 7 at the top monitors the organisms below, making it convenient for personnel to observe and record the population size.

[0030] It should be noted that the elevation of the inlet 40 of biological channel 4 is not higher than the average high tide level of outer river 2, and the elevation of the outlet 41 of biological channel 4 is consistent with the average water level of inner pond river 3.

[0031] The biological channel 4 is embedded in the concrete structure of the seawall 1. The highest point of the biological channel 4 is level with the top road surface of the seawall 1, and the two sides are connected to the entrance and exit 41 by a gentle slope.

[0032] Biological channel 4 is located on a section of the back slope 11 of seawall 1. Its top is flush with the slope surface of the back slope 11 and the top is covered with a grid cover.

[0033] The bottom of the inner side of the biological channel 4 is laid with a pebble cushion layer 42, a sand cushion layer 43 and vegetation 44 from bottom to top. The water replenishment system 6 is installed inside the biological channel 4 near the top of the vegetation 44.

[0034] The pebble cushion layer 42 strengthens the structural strength of the bottom of the channel and forms a planting space for vegetation 44 with the sand, which is conducive to creating an environment in the channel and improving the effect of biological migration. At the same time, the vegetation 44 can also absorb and decompose the dirt carried by the organisms to optimize the internal environment and improve the service life and utilization rate of the biological channel 4.

[0035] See appendix Figure 3 -Appendix Figure 4 The flow obstruction component 5 includes a flow chamber 50 connected to the inlet 40. The inner wall of the flow chamber 50 is a cylindrical curved surface and is rotatably connected to a rotating plate 51. One end of the rotating plate 51 is in contact with the cylindrical curved surface, and the other end extends out of the flow chamber 50 and is provided with a float 52 at the bottom. The flow chamber 50 is connected to the outer river 2 by a flow pipe 53. The top of the flow chamber 50 is provided with a locking block 54 that abuts against the rotating plate 51. The diversion chamber 50 is connected to the outer river 2 via the flow pipe 53. When the water level of the outer river 2 changes, the water level in the diversion chamber 50 changes synchronously. When the water level of the outer river 2 is lower than the height of the inlet 40, the rotating plate 51 maintains a horizontal posture to connect the biological channel 4. When the water level of the outer river 2 rises, the rotating plate 51 near the outer river 2 floats up through the float 52, causing the rotating plate 51 to rotate inside the diversion chamber 50. At this time, one end of the rotating plate 51 is inside the cylindrical curved surface of the diversion chamber 50, and the other end is restricted by the locking block 54 to form an isolation between the external water body and the inlet, preventing water from flowing back into the biological channel 4 and affecting the inner pond and its surrounding buildings. At the same time, the rotating plate 51 squeezes the water out from the flow pipe 53 and the opening on the outside of the diversion chamber 50, eliminating the horizontal impact water energy. This can effectively prevent the waves on the river surface from surging into the biological channel 4 and impacting the sand and soil, thus preventing the roots of the vegetation 44 from detaching and dying, and protecting the internal structure of the channel from damage.

[0036] The side of the rotating plate 51 close to the inlet 40 is provided with sieve holes 55 at intervals, and the bottom cylindrical curved surface of the flow guide bin 50 is provided with partition plates 56 at intervals in the axial direction, the cross section of the partition plate 56 is a fan ring and is arranged in cooperation with each sieve hole 55. The biological larvae separated from the parent body are too small in size to be washed away with the water body passing through the rotating plate 51, and can fall from the sieve holes 55 along with the water body, the water body is guided by the bottom cylindrical curved surface of the flow guide bin 50 and discharged from the flow-through pipe 53, avoiding the death of non-migratory organisms entering the biological channel 4 and reducing the species diversity of the outer river 2, at the same time, the silt carried by the migratory organisms can also fall from the sieve holes 55 along with the water body and be discharged from the flow-through pipe 53, preventing the accumulation of dirt at the inlet 40 affecting the passage of organisms, when the water level rises, the side of the rotating plate 51 provided with the sieve holes 55 rotates in the flow guide bin 50, so that each partition plate 56 passes through the sieve hole 55, on the one hand, preventing water from seeping into the channel from below and causing backflow, on the other hand, forming multiple accelerated water flows between adjacent partition plates 56 and being discharged from the flow-through pipe 53 and the flow guide bin 50, which helps to improve the energy dissipation of the impact water body and also guides the rotating plate 51 to prevent deformation and water leakage when rotating.

[0037] Referring to the accompanying drawings Figure 5 - the accompanying drawings Figure 6 The water replenishing system 6 includes a water replenishing pipe 60 arranged at the top of the biological channel 4, one end of the water replenishing pipe 60 arranged in the biological channel 4 is sleeved with a pipe sleeve 61, the side wall of the pipe sleeve 61 is provided with a flow-through opening 62, a hole plate 63 is arranged in the pipe sleeve 61, and an ultraviolet lamp 64 is arranged in the pipe sleeve 61 close to the flow-through opening 62. The water pump discharges water from the external water source to the water replenishing pipe 60, part of the water entering the pipe sleeve 61 is discharged outward from the flow-through opening 62, and the other part is discharged downward from the hole plate 63, which disperses the water body to reduce the impact of the water body on the bottom vegetation 44 and the sand cushion 43, prevents internal soil erosion, the ultraviolet lamp 64 sterilizes the dispersed water body to reduce the probability of bacterial growth in the channel and improve the cleanliness of the biological passage.

[0038] The bottom of the sleeve 61 is provided with a bearing 65, and the outer side of the bearing 65 is fitted with a rotating sleeve 66. The rotating sleeve 66 is an open-top cylindrical sleeve. A plurality of through grooves 67 are arranged around the sidewall of the rotating sleeve 66. Any through groove 67 is outwardly connected with a bent plate 68, which is an elastic plate. The airflow carried by the river surface enters the biological channel 4 from the inlet 40, and the airflow contacts the plurality of bent plates 68 to make the rotating sleeve 66 rotate relative to the sleeve 61 through the bearing 65. The water discharged outward through the flow port 62 accumulates in the rotating sleeve 66, prolonging the time of water sterilization by the ultraviolet lamp 64 and increasing the contact surface of ultraviolet and water, thereby improving the sterilization effect. The water accumulates in the rotating sleeve 66 until it overflows the bottom end of the through groove 67. Under the action of centrifugal force, the water flows out of the through groove 67 and is guided outward by the bent plate 68, thereby improving the spraying range of the sterilized water and promoting the growth of the vegetation 44 in the channel to purify the biological migration channel. The water spun out can clean the camera 7, preventing fog from blocking the camera's field of view. The plurality of bent plates 68 rotating synchronously can buffer the flow rate of the airflow, preventing strong airflow from causing the vegetation 44 to lodge and causing wind noise and interference with the biological migration.

[0039] The biological channel 4 is provided with a sensing system 8 at the bottom. The sensing system 8 includes an environmental element sensor and a controller. The environmental element sensor is electrically connected to the water supplement system 6 through the controller.

[0040] The biological channel 4 is provided with a background intelligent control system. The sensing system 8, the camera 7, and the water supplement system 6 are wirelessly connected to the intelligent control system. The environmental element sensor measures parameters such as humidity, temperature, and wind speed in the channel to provide monitoring data. The camera 7 transmits real-time monitoring images to the intelligent control system. The monitoring data is sent to the intelligent control system through the controller for data recording and analysis. The intelligent control system sends the analyzed results to the controller to control the water supplement system 6 to supplement water in a specified amount and speed, thereby realizing remote monitoring of the factors in the biological channel 4.

[0041] Referring to the accompanying drawings Figure 8 A seawall biological channel, and a method for arranging the same, specifically includes the following steps:

[0042] S1: Obtain environmental data of the area where the seawall 1 is located, water level parameters of the outer river 2 and the inner pond river 3, animal list, population distribution, quantity, and protection level;

[0043] S2: Determine the elevations of the inlet 40 and the outlet 41 of the biological channel 4 according to the water level parameters of the outer river 2 and the inner pond river 3;

[0044] S3: Confirm the longitudinal structure design of the biological channel 4 according to the elevations of the inlet 40 and the outlet 41 and the cross-sectional structure type of the seawall 1;

[0045] S4: screening the list of main migratory animals, confirming its body size parameters, life, reproduction and migration habits;

[0046] S5: determining the cross-sectional size of biological passage 4 according to the body size parameters and habits of main migratory animals;

[0047] S6: determining the habitat creation demand inside biological passage 4 according to the life habits of main migratory animals;

[0048] S7: further refining the habitat biological passage 4 design scheme according to the cross-sectional size of biological passage 4 and the habitat creation demand;

[0049] S8: laying out water supplement system 6 and sensing system 8 in biological passage 4 to monitor the internal environment.

[0050] It should be noted that the engineering area environmental data mainly includes the land types inside and outside seawall 1, soil properties, local vegetation 44 population characteristics and human disturbance;

[0051] The water level of outer river 2 is determined according to the average tide level data of the tide station near the project, and the water level of inner pond river 3 is determined according to the data collection or field monitoring to determine its normal water level;

[0052] The animal list needs to refer to historical data to obtain the animal list, population distribution, quantity and protection level data in the project area. When the historical data is missing or incomplete, a biodiversity supplement investigation is carried out to obtain it;

[0053] The cross-sectional size of biological passage 4 is not less than twice the body length of main migratory animals, and the cross-sectional width and height are preferably set to 0.5-1.5m;

[0054] The habitat creation demand index inside biological passage 4 includes vegetation 44 environment (vegetation 44 type, main species), soil environment (soil type, wetland, PH value, salinity) and light brightness.

[0055] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A seawall bio-tunnel, comprising: A seawall (1) is provided with a biological channel (4) passing through below the seawall (1), Characterized in that: the biological channel (4) comprises an inlet (40) and an outlet (41), the seawall (1) comprises an outer river (2) close to the inlet (40) and an inner pond river (3) close to the outlet (41), the inlet (40) is provided with a flow resistance component (5) for reducing the speed of the water body, and a water supplement system (6) and a camera (7) are arranged on the top of the biological channel (4). The flow resistance component (5) comprises a flow guide bin (50) in communication with the inlet (40), the inner wall of the flow guide bin (50) is a cylindrical curved surface, and a rotating plate (51) is rotatably connected to the cylindrical curved surface, one end of the rotating plate (51) is attached to the cylindrical curved surface, the other end of the rotating plate (51) extends out of the flow guide bin (50) and is provided with a floating block (52) at the bottom, and the bottom of the flow guide bin (50) is in communication with the outer river (2) through a flow pipe (53), and the top of the flow guide bin (50) is provided with a clamping block (54) abutting against the rotating plate (51).

2. The seawall bio-tunnel of claim 1, wherein: The inside bottom of the biological channel (4) is sequentially laid with a pebble cushion layer (42), a sandy soil cushion layer (43) and vegetation (44) from bottom to top, and the water supplement system (6) is arranged on the top of the biological channel (4) close to the vegetation (44).

3. The seawall bio-tunnel of claim 1, wherein: The side of the rotating plate (51) close to the inlet (40) is provided with a sieve opening (55) at intervals, and the cylindrical curved surface of the bottom of the flow guide bin (50) is provided with a partition plate (56) at intervals in the axial direction, the cross section of the partition plate (56) is a fan ring and is arranged in cooperation with each sieve opening (55).

4. The seawall living shoreline of claim 1, wherein: The water supplement system (6) comprises a water supplement pipe (60) arranged on the top of the biological channel (4), one end of the water supplement pipe (60) located in the biological channel (4) is sleeved with a pipe sleeve (61), a flow passage (62) is formed in the side wall of the pipe sleeve (61), a hole plate (63) is arranged in the pipe sleeve (61), and an ultraviolet lamp (64) is arranged in the pipe sleeve (61) close to the flow passage (62).

5. A seawall bio-tunnel according to claim 4, characterised in that: The outside bottom of the pipe sleeve (61) is provided with a bearing (65), the outside of the bearing (65) is fitted with a rotating sleeve (66), the rotating sleeve (66) is an open-top cylindrical sleeve, a plurality of through grooves (67) are arranged on the side wall of the rotating sleeve (66), the bottom end of each through groove (67) is higher than the upper bottom surface of the rotating sleeve (66), and each through groove (67) is connected with a bent plate (68) outward.

6. A seawall bio-tunnel according to claim 4, wherein: A sensing system (8) is arranged in the bottom of the biological channel (4), the sensing system (8) comprises an environmental element sensor and a controller, the environmental element sensor is electrically connected with the water supplement system (6) through the controller, and the environmental element sensor is arranged on the bottom of the biological channel (4).

7. A method for laying a seawall biological passage, using the seawall biological passage of claim 6, characterized in that, The method comprises the following steps: S1: obtaining the environmental data of the area where the seawall (1) is located, the water level parameters of the outer river (2) and the inner pond river (3), the animal list, the population distribution, the quantity and the protection level; S2: Determine the elevations of the inlet (40) and the outlet (41) of the biological passage (4) according to the water level parameters of the outer river (2) and the inner estuary river (3); S3: Confirm the longitudinal structure design of the biological passage (4) according to the elevations of the inlet (40) and the outlet (41) and the cross-sectional structure type of the estuary body (1); S4: Screen the list of main migratory animals and confirm their body size parameters, life, reproduction, and migration habits; S5: Determine the cross-sectional size of the biological passage (4) according to the body size parameters and habits of the main migratory animals; S6: Determine the habitat creation requirements inside the biological passage according to the life habits of the main migratory animals; S7: Further refine the habitat biological passage design scheme according to the cross-sectional size of the biological passage (4) and the requirements of habitat creation indicators; S8: Lay out the water replenishment system (6) and the sensing system (8) in the biological passage (4) to monitor the internal environment.

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