Green ecological riverway side slope sheet pile support structure

Abstract

The present application relates to river protection technical field, specifically to a kind of green ecological river side slope sheet pile support structure, including sheet pile and floating plate;The sheet pile is hollow structure and is equipped with multiple, the length of sheet pile extends along up-down direction, multiple sheet piles are sequentially connected in horizontal direction, and two adjacent sheet piles are detachably connected by dovetail, the floating plate is equipped with multiple, each floating plate is respectively arranged on each sheet pile along up-down direction, and the floating plate of two adjacent sheet piles is connected, each floating plate has the blocking surface extending along up-down direction, and then when the water level in river changes, multiple floating plates can be synchronously moved up and down relative to respective corresponding sheet pile, so that the blocking surface and the outer surface of sheet pile can jointly block the water in river, so as not to block personnel to observe water surface condition, while improving water retaining range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of river protection, in particular to a green ecological river slope sheet pile support structure. BACKGROUND

[0002] The green ecological river slope sheet pile support structure is a river treatment technology integrating stability and ecological restoration function. It mainly uses ecological U-shaped sheet piles, plastic sheet piles or composite steel sheet piles and other materials, and creates conditions for vegetation restoration and ecological reconstruction through scientific layout and construction while stabilizing the bank slope and preventing soil erosion. This type of structure usually has high strength and corrosion resistance, and realizes rapid assembly construction through prefabricated components and special connection design, reducing disturbance to the water area.

[0003] The patent document with publication number CN215518834U discloses a cofferdam device for water conservancy construction, which comprises an outer baffle. Adjacent two outer baffles are connected through first trapezoidal limiting blocks and first trapezoidal limiting grooves to facilitate the disassembly and assembly of the outer baffle. However, the height of the outer baffle is usually fixed, which is not convenient for observing the water surface when the water level is low, and cannot meet the water retaining requirement when the water level is high. SUMMARY

[0004] Therefore, it is necessary to provide a green ecological river slope sheet pile support structure to solve the technical problems of the fixed height of the cofferdam device, which is not convenient for observing the water surface or cannot meet the water retaining requirement.

[0005] The above-mentioned purpose is achieved by the following technical scheme:

[0006] A green ecological river slope sheet pile support structure comprises a sheet pile and a floating plate. The sheet pile is hollow and provided in plurality. The length of the sheet pile extends in the upward and downward direction, and the width of the sheet pile extends in the horizontal direction. The plurality of sheet piles are sequentially connected in the horizontal direction, and the adjacent two sheet piles are connected through a dovetail joint. The floating plate is provided in plurality. Each floating plate is slidably arranged on the sheet pile in the upward and downward direction, and the floating plates on the adjacent two sheet piles are connected. Each floating plate has a blocking surface extending in the upward and downward direction. When the water level in the river changes, the plurality of floating plates can move upward and downward relative to the corresponding sheet pile, so that the blocking surface and the outer surface of the sheet pile can jointly block the water in the river.

[0007] Further, the sheet pile is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively located on both sides of the sheet pile along the width direction, and the liquid inlet and the liquid outlet are distributed in the up-down direction, the liquid inlet is used for the water in the river to enter the inside of the sheet pile, the liquid outlet is used for the water in the inside of the sheet pile to flow out, the elastic filter screen is arranged in the liquid inlet and the liquid outlet, the elastic filter screen can block the large-particle impurities from entering the inside of the sheet pile, the inside bottom of the sheet pile is provided with a filler, the filler is used for purifying the river water, and the filler is made of shrimp shell or squid bone material.

[0008] Further, the floating plate is provided with an insert, the insert is slidingly arranged in the inside of the sheet pile, the insert comprises a water suction and discharge plate, and the water suction and discharge plate is arranged to be inclined with respect to the up-down direction, so that the floating plate can drive the insert to move synchronously when moving up and down, and then the water suction and discharge plate moves up and down synchronously in the inside of the sheet pile, the water suction and discharge plate sucks the water outside the sheet pile into the inside of the sheet pile through the liquid inlet and discharges the water in the inside of the sheet pile to the outside through the liquid outlet.

[0009] Further, the insert further comprises a plurality of filter frames and a plurality of connecting blocks, the plurality of filter frames are distributed in the up-down direction, and the adjacent two filter frames are connected through the connecting block, two hinge shafts extending in the horizontal direction are arranged on each connecting block, and the axis of the hinge shaft is perpendicular to the width direction of the sheet pile, the water suction and discharge plate is hinged on the connecting block through the hinge shaft, and the two water suction and discharge plates on the same connecting block are arranged to be symmetrical about the vertical axis; in the initial state, the two water suction and discharge plates on the same connecting block maintain a fixed angle.

[0010] Further, the floating plate is provided with an insert, the insert is slidingly arranged in the inside of the sheet pile, the insert comprises a water suction and discharge plate, and the water suction and discharge plate is arranged to be inclined with respect to the up-down direction, so that the floating plate can drive the insert to move synchronously when moving up and down, and then the water suction and discharge plate moves up and down synchronously in the inside of the sheet pile, the water suction and discharge plate sucks the water outside the sheet pile into the inside of the sheet pile through the liquid inlet and discharges the water in the inside of the sheet pile to the outside through the liquid outlet.

[0011] Further, the connecting block is provided with a through hole extending in the up-down direction, the adjusting rod can slide up and down along the through hole, a plurality of adjusting ring grooves are distributed on the length direction of the adjusting rod, the adjusting ring grooves are coaxially arranged with the adjusting rod, the end of the water suction and discharge plate is provided with a hinge ring, the hinge ring is hinged on the hinge shaft, and a stop flat surface is arranged on the outer circumferential surface of the hinge ring, when the stop flat surface is opposite to the adjusting ring groove on the adjusting rod, the hinge ring can rotate a certain angle about the hinge shaft freely.

[0012] Further, the filter frame is a hollow structure, the filter frame has a three-layer structure, and the three-layer structure is sequentially formed by a filter plate, a filter mesh layer and an adsorption layer from outside to inside; the filter plate is provided with first filter holes, the axis of the first filter holes extends along the horizontal direction, the filter mesh layer is arranged in close contact with the inner wall of the filter plate, and the adsorption layer is arranged in close contact with the side, away from the filter plate, of the filter mesh layer; the adsorption layer is used for purifying river water, and the adsorption layer is made of shrimp shell or squid bone material.

[0013] Further, the inside of the sheet pile is provided with a horizontal partition plate, the horizontal partition plate seals the filler in the inner bottom of the sheet pile, the horizontal partition plate is provided with second filter holes, the axis of the second filter holes extends along the up-down direction, and the lower surface of the horizontal partition plate is provided with a filter membrane; the filter membrane can purify river water.

[0014] Further, in the width direction of the sheet pile, one end of the floating plate is provided with a clamping groove, and the other end is provided with a clamping protrusion; the clamping protrusion can be seamlessly connected with the clamping groove of the adjacent floating plate.

[0015] Further, the lower end of the sheet pile is a pointed end, and the pointed end is used for inserting into the soil layer of the river bank slope.

[0016] The green ecological river bank slope sheet pile supporting structure has the following beneficial effects:

[0017] The green ecological river bank slope sheet pile supporting structure has the following beneficial effects:

[0018] Second, since the water suction and drainage plate can move up and down synchronously with the floating plate, the water suction and drainage plate that moves up can form a negative pressure in the inside of the sheet pile, so that the river water is sucked through the liquid inlet, the large-particle impurities in the river water are blocked by the elastic filter mesh, the filtered river water enters the inside of the sheet pile, and finally is guided to the inner bottom of the sheet pile by the water suction and drainage plate that moves down and is discharged through the liquid outlet. In this way, the purification efficiency can be improved.

[0019] Third, when the water level in the river changes greatly (i.e., the wind and wave are large), the fixed angle between the two water suction and drainage plates on the same connecting block remains unchanged, so that the water suction and drainage plates can move up and down with the floating plate, and then the river water is sucked and discharged, thereby improving the purification efficiency; when the water level in the river changes slightly (i.e., the wind and wave are small), the two water suction and drainage plates can be freely rotated by a certain angle around the respective hinge shafts through the adjusting rod, so that the two water suction and drainage plates gradually approach the filter frame under the action of gravity, and then the small-particle impurities in the inside of the sheet pile can be precipitated, thereby improving the river water purification effect.

[0020] Fourth, the filler of the inner bottom of the sheet pile and the adsorption layer of the filter frame are both made of shrimp shell or squid bone material, which can adsorb heavy metal ions, organic pollutants, pigments and the like in water, reduce the pollutant concentration of river water, and improve the water quality of river water. Meanwhile, the shrimp shell or squid bone material is widely sourced, environmentally friendly and degradable, will not cause secondary pollution to the ecological environment of the river channel, and conforms to the concept of green ecology. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic view of multiple sheet piles in the green ecological river channel slope sheet pile support structure is provided for an embodiment of the present application;

[0022] Figure 2 A structural schematic view of a single sheet pile in the green ecological river channel slope sheet pile support structure is provided for an embodiment of the present application;

[0023] Figure 3 An exploded schematic view of a single sheet pile in the green ecological river channel slope sheet pile support structure is provided for an embodiment of the present application;

[0024] Figure 4 A top view schematic view of a single sheet pile in the green ecological river channel slope sheet pile support structure is provided for an embodiment of the present application;

[0025] Figure 5 A Figure 4 A-A sectional view in the middle;

[0026] Figure 6 A Figure 5 An enlarged view of the structure at B in the middle;

[0027] Figure 7 A Figure 4 A-C sectional view in the middle;

[0028] Figure 8 A Figure 7 An enlarged view of the structure at D in the middle;

[0029] Figure 9 A structural schematic view of a connecting block and a filter frame in the green ecological river channel slope sheet pile support structure is provided for an embodiment of the present application.

[0030] Wherein: 101, adjusting rod; 1011, adjusting ring groove; 102, floating plate; 103, elastic filter screen; 104, sheet pile; 105, water absorption and drainage plate; 1051, rotation stopping plane; 106, connecting block; 107, hinged shaft; 108, filter frame; 109, filler; 110, filter membrane; 111, horizontal partition plate; 112, foam filler; 113, filter plate; 114, filter screen layer; 115, adsorption layer; 116, liquid inlet; 117, liquid outlet. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] like Figures 1 to 9 As shown in the figure, an embodiment of the present invention provides a green and ecological riverbank slope sheet pile support structure, including sheet piles 104 and floating plates 102. The sheet piles 104 are hollow structures and are provided in multiples. The length of the sheet piles 104 extends in the vertical direction. The multiple sheet piles 104 are connected sequentially in the horizontal direction, and adjacent sheet piles 104 are detachably connected by dovetail joints. The floating plates 102 are provided in multiples, and each floating plate 102 is slidably disposed on each sheet pile 104 in the vertical direction. The floating plates 102 on adjacent sheet piles 104 are snapped together. Each floating plate 102 has a blocking surface extending in the vertical direction. Thus, when the water level in the river changes, the multiple floating plates 102 can move up and down synchronously relative to their respective sheet piles 104, so that the blocking surface and the outer surface of the sheet piles 104 can jointly block the water in the river.

[0035] The sheet pile 104 adopts a hollow structure, which reduces the weight of the sheet pile 104 while ensuring a certain strength, facilitating transportation and construction. A plurality of sheet piles 104 are detachably connected in the horizontal direction through dovetail joints. The connection mode of the dovetail joints enables the sheet piles 104 to be closely matched with each other, forming a continuous overall structure, thereby enhancing the integrity and anti-sliding capacity of the supporting structure and effectively blocking the lateral pressure of the river slope soil, preventing the slope from collapsing. At the same time, the construction efficiency can be improved, and the construction period can be shortened. The inner part of the floating plate 102 is filled with a foam filler 112 made of polyethylene foam material, which ensures that the floating plate 102 can float with the water surface.

[0036] The floating plate 102 is arranged on the sheet pile 104. When the water level is low, the floating plate 102 can move downward relative to the sheet pile 104, so that the floating plate 102 does not block the observation of the water surface. When the water level is high, the floating plate 102 can automatically move upward relative to the sheet pile 104, so that the blocking surface of the floating plate 102 and the outer surface of the sheet pile 104 can jointly block the water in the river, thereby improving the water blocking range and improving the adaptability of the green ecological river slope sheet pile supporting structure to the water level change.

[0037] Further, the sheet pile 104 is provided with an inlet 116 and an outlet 117. The inlet 116 and the outlet 117 are respectively located on both sides of the sheet pile 104 along the width direction, and a plurality of inlets 116 and outlets 117 are arranged in the upward and downward directions. The inlet 116 is used for allowing the water in the river to enter the interior of the sheet pile 104, and the outlet 117 is used for allowing the water in the interior of the sheet pile 104 to flow out. An elastic filter screen 103 is arranged in the inlet 116 and the outlet 117. The elastic filter screen 103 can block large particles from entering the interior of the sheet pile 104. The inner bottom of the sheet pile 104 is provided with a filler 109 for purifying river water. The filler 109 is made of shrimp shell or squid bone material. Since the flow direction of the water in the river does not change, the river water can only enter through the inlet 116 and flow out through the outlet 117.

[0038] A vertical plate is detachably mounted on the sheet pile 104. The inlet 116 and the outlet 117 are arranged on the vertical plate.

[0039] The filler 109 in the inner bottom of the sheet pile 104 is made of shrimp shell or squid bone material. The porous structure of the squid bone and the chitin characteristics of the shrimp shell are utilized to enhance the mechanical properties through high-temperature sintering or biological solidification, while the natural voids of the material are retained. The filler 109 can adsorb, filter and decompose the pollutants in the river water, thereby purifying the river water, improving the water quality of the river and improving the ecological environment quality of the river.

[0040] Further, each floating plate 102 is provided with an insert which is slidingly arranged in the interior of each sheet pile 104, the insert comprising a water suction and discharge plate 105 which is arranged obliquely relative to the up-down direction, so that the insert can be moved synchronously with the floating plate 102 when the floating plate 102 moves up and down, and the water suction and discharge plate 105 moves up and down synchronously in the interior of the sheet pile 104, the water suction and discharge plate 105 sucking water outside the sheet pile 104 through the liquid inlet 116 and discharging water inside the sheet pile 104 through the liquid outlet 117.

[0041] Since the water suction and discharge plate 105 can move up and down synchronously with the floating plate 102, the water suction and discharge plate 105 moving up can form a negative pressure in the interior of the sheet pile 104, so as to suck river water through the liquid inlet 116, and the large-particle impurities in the river water are blocked by the elastic filter screen 103, so that the filtered river water is guided to the inner bottom of the sheet pile 104 by the water suction and discharge plate 105 moving down and is discharged through the liquid outlet 117. In this way, the water in the river can be accelerated to enter the interior of the sheet pile 104 through the liquid inlet 116, and the water in the interior of the sheet pile 104 can be accelerated to flow out through the liquid outlet 117, so as to improve the purification efficiency. Meanwhile, the elastic filter screen 103 can be elastically deformed during the suction and discharge process, so as to avoid the large-particle impurities from adhering to the surface of the elastic filter screen 103, and thus the elastic filter screen 103 can be prevented from being easily blocked.

[0042] Further, the insert further comprises a plurality of filter frames 108 and a plurality of connecting blocks 106, the plurality of filter frames 108 being distributed along the up-down direction, and two adjacent filter frames 108 being clamped by the connecting block 106, each connecting block 106 being provided with two hinge shafts 107 extending along the horizontal direction, and the axis of the hinge shaft 107 being perpendicular to the width direction of the sheet pile 104, the water suction and discharge plate 105 being hinged to the connecting block 106 through the hinge shaft 107, and two water suction and discharge plates 105 on the same connecting block 106 being symmetrically arranged about a vertical axis; in the initial state, the two water suction and discharge plates 105 on the same connecting block 106 maintain a fixed and unchanging included angle. The filter frame 108 and the connecting block 106 are detachably connected through dovetail joints, so as to facilitate disassembly and assembly.

[0043] The two water suction and discharge plates 105 maintain a fixed and unchanging included angle, so that the two water suction and discharge plates 105 can better suck and discharge river water.

[0044] Further, the adjusting rod 101 is detachably connected to the floating plate 102, the adjusting rod 101 extends in the up-down direction, the adjusting rod 101 is slidably inserted into the interiors of the plurality of connecting blocks 106, and the up-down movement of the adjusting rod 101 can synchronously adjust the two water suction and discharge plates 105 arranged symmetrically, so that the two water suction and discharge plates 105 can be freely rotated by a certain angle around the respective hinged shafts 107. The adjusting rod 101 is threadedly connected to the floating plate 102.

[0045] In this way, when the water level in the river changes greatly (i.e., the wind and wave are large), the fixed included angle between the two water suction and discharge plates 105 on the same connecting block 106 is kept unchanged, which facilitates the up-down movement of the water suction and discharge plates 105 with the floating plate 102, and thus the suction and discharge of the river water, and improves the purification efficiency; when the water level in the river changes slightly (i.e., the wind and wave are small), the two water suction and discharge plates 105 can be freely rotated by a certain angle around the respective hinged shafts 107 through the adjusting rod 101, so that the two water suction and discharge plates 105 will gradually approach the filter frame 108 under the action of gravity, and thus the small-particle impurities inside the sheet pile 104 can be facilitated to be precipitated, and the river water purification effect is improved.

[0046] Further, the connecting block 106 is provided with a through hole extending in the up-down direction, the adjusting rod 101 can slide up and down along the through hole, the adjusting rod 101 is distributed with a plurality of adjusting ring grooves 1011 in the length direction of the adjusting rod 101, the adjusting ring grooves 1011 are coaxially arranged with the adjusting rod 101, the end portion of the water suction and discharge plate 105 is provided with a hinged ring, the hinged ring is hinged to the hinged shaft 107, and the outer peripheral surface of the hinged ring is provided with a rotation-stopping plane 1051, when the rotation-stopping plane 1051 is opposite to the adjusting ring groove 1011 on the adjusting rod 101, the hinged ring can be freely rotated by a certain angle around the hinged shaft 107.

[0047] In this way, the structure is simple and facilitates the adjustment of the angle of the water suction and discharge plate 105.

[0048] Further, the filter frame 108 is a hollow structure, the filter frame 108 has a three-layer structure, and the three-layer structure has, from outside to inside, a filter plate 113, a filter mesh layer 114, and an adsorption layer 115, the filter plate 113 is provided with first filter holes, the axis of the first filter holes extends in the horizontal direction, the filter mesh layer 114 is arranged in close contact with the inner wall of the filter plate 113, and the adsorption layer 115 is arranged in close contact with the side of the filter mesh layer 114 away from the filter plate 113, the adsorption layer 115 is used for purifying river water, and the adsorption layer 115 is made of shrimp shells or squid bone materials.

[0049] The first filter hole and the filter screen layer 114 arranged on the filter plate 113 can avoid small-particle impurities (such as suspended particles, algae and the like) in the river water from entering the inside of the filter frame 108, thereby facilitating the sinking and precipitation of the small-particle impurities; the adsorption layer 115 can adsorb heavy metal ions, organic pollutants, pigments and the like in the water, reduce the pollutant concentration of the river water and improve the water quality of the river water. Meanwhile, the shrimp shell or squid bone material is widely sourced, environmentally friendly and degradable, does not cause secondary pollution to the ecological environment of the river channel and conforms to the concept of green ecology.

[0050] Further, the inside of the sheet pile 104 is provided with a horizontal partition plate 111, the horizontal partition plate 111 encloses the filler 109 at the inner bottom of the sheet pile 104, the horizontal partition plate 111 is provided with a second filter hole, the axis of the second filter hole extends in the up-down direction, and the lower surface of the horizontal partition plate 111 is provided with a filter membrane 110, which can purify the river water.

[0051] The second filter hole extending in the up-down direction on the partition plate can intercept impurities (such as fine silt and aquatic plant residues) of medium particle size in the water that are not blocked by the filter screen of the liquid inlet 116, avoid the impurities directly contacting the filler 109, reduce the risk of the pores of the filler 109 being blocked and prolong the service life of the filler 109; the filter membrane 110 on the lower surface of the horizontal partition plate 111 can more finely process the river water passing through the second filter hole, can intercept fine suspended particles, part of colloidal substances and even microorganisms (such as algae spores) in the water, make the river water entering the area of the filler 109 cleaner, enable the filler 109 to more focus on adsorbing heavy metal ions, organic pollutants and other small-molecule pollutants, avoid the interference of impurities on the adsorption process and significantly improve the overall purification efficiency.

[0052] Further, in the width direction of the sheet pile 104, one end of the floating plate 102 is provided with a clamping groove, and the other end is provided with a clamping protrusion, and the clamping protrusion can be seamlessly connected with the clamping groove of the adjacent floating plate 102.

[0053] Such a design can realize the synchronous up-down movement of the plurality of floating plates 102 and can block the river water at the same time.

[0054] Further, the lower end of the sheet pile 104 is a pointed end, the pointed end is used for being inserted into the soil layer of the river bank slope, and the pointed end is triangular.

[0055] In combination with the above embodiment, the use principle and working process of the embodiment of the application are as follows:

[0056] The plurality of sheet piles 104 are connected to each other and inserted into the soil layer in the river bank slope plate. In the initial state, the included angle between the two water absorption and drainage plates 105 on the same connecting block 106 remains unchanged. When the water level in the river changes greatly (i.e., the wind and wave are large), the floating plate 102 moves up and down with the change of the water level. Since the water absorption and drainage plate 105 can move up and down synchronously with the floating plate 102, the upward moving water absorption and drainage plate 105 forms a negative pressure in the interior of the sheet pile 104, thereby sucking the river water through the liquid inlet 116. The large particles in the river water are blocked by the elastic filter screen 103, so that the filtered river water enters the interior of the sheet pile 104, and finally is guided to the inner bottom of the sheet pile 104 by the downward moving water absorption and drainage plate 105 and discharged through the liquid outlet 117.

[0057] Due to the three-layer structure design of the filter frame 108 and the filler 109 arranged at the inner bottom of the sheet pile 104, the river water entering the interior of the sheet pile 104 can be purified, and the purification efficiency and effect are improved. During the process of sucking or discharging the river water, the elastic filter screen 103 can be elastically deformed, so that the large particles are prevented from adhering to the surface of the elastic filter screen 103, thereby preventing the elastic filter screen 103 from being easily blocked.

[0058] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0059] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A green and ecological riverbank slope sheet pile support structure, characterized in that, include: Sheet piles, wherein the sheet piles are hollow and there are multiple sheet piles, the length of the sheet piles extends in the vertical direction, the width of the sheet piles extends in the horizontal direction, the multiple sheet piles are connected in sequence in the horizontal direction, and adjacent sheet piles are detachably connected by dovetail joints. The sheet pile is provided with an inlet and an outlet, which are located on both sides of the sheet pile along its width. Multiple inlets and outlets are distributed along the vertical direction. The inlet is used to allow water from the river to enter the interior of the sheet pile, and the outlet is used to allow water from the interior of the sheet pile to flow out. Both the inlet and outlet are provided with elastic filter screens, which can block large particles of impurities from entering the interior of the sheet pile. The bottom of the sheet pile is provided with filler material, which is used to purify the river water. The filler material is made of shrimp shells or squid bones. The system includes multiple floating plates, each slidably mounted on a sheet pile in a vertical direction. Floating plates on adjacent sheet piles are interlocked. Each floating plate has a blocking surface extending vertically. When the water level in the river changes, the multiple floating plates can move synchronously up and down relative to their respective sheet piles, allowing the blocking surface and the outer surface of the sheet pile to jointly block water in the river. Each floating plate is equipped with an insert, which is slidably mounted inside the sheet pile. The insert includes a suction and drainage plate, which is inclined relative to the vertical direction. When the floating plate moves up and down, it drives the insert to move synchronously, causing the suction and drainage plate to slide synchronously up and down inside the sheet pile. The suction and drainage plate draws water from outside the sheet pile into the sheet pile through an inlet and discharges water from inside the sheet pile out through an outlet.

2. The green and ecological riverbank slope sheet pile support structure according to claim 1, characterized in that, The insert also includes multiple filter frames and multiple connecting blocks. The multiple filter frames are distributed in the vertical direction, and adjacent filter frames are connected by connecting blocks. Each connecting block is provided with two hinge shafts extending in the horizontal direction, and the axis of the hinge shafts is perpendicular to the width direction of the sheet pile. The water suction and drainage plate is hinged to the connecting block through the hinge shafts. Two water suction and drainage plates on the same connecting block are symmetrically arranged about the vertical axis. In the initial state, the two water suction and drainage plates on the same connecting block maintain a fixed included angle.

3. The green and ecological riverbank slope sheet pile support structure according to claim 2, characterized in that, An adjusting rod is detachably connected to the floating plate. The adjusting rod extends in the vertical direction and can be slidably inserted into the interior of multiple connecting blocks at the same time. The vertical movement of the adjusting rod can synchronously adjust two symmetrically arranged suction and drainage plates, so that the two suction and drainage plates can rotate freely around their respective hinge axes at a certain angle.

4. The green and ecological riverbank slope sheet pile support structure according to claim 3, characterized in that, The connecting block is provided with a through hole extending in the vertical direction. The adjusting rod can slide up and down along the through hole. Multiple adjusting ring grooves are distributed along the length direction of the adjusting rod. The adjusting ring grooves are coaxially arranged with the adjusting rod. The end of the suction and drainage plate is provided with a hinge ring. The hinge ring is hinged to the hinge shaft. The outer circumferential surface of the hinge ring is provided with an anti-rotation plane. When the anti-rotation plane is opposite to the adjusting ring groove on the adjusting rod, the hinge ring can rotate freely around the hinge shaft at a certain angle.

5. The green and ecological riverbank slope sheet pile support structure according to claim 4, characterized in that, The filter frame has a hollow structure and a three-layer structure, consisting of a filter plate, a filter mesh layer, and an adsorption layer from the outside to the inside. The filter plate has a first filter hole with its axis extending horizontally. The filter mesh layer is fitted to the inner wall of the filter plate, and the adsorption layer is fitted to the side of the filter mesh layer away from the filter plate. The adsorption layer is used to purify river water and is made of shrimp shell or squid bone material.

6. The green and ecological riverbank slope sheet pile support structure according to claim 1, characterized in that, The sheet pile has a horizontal partition inside, which seals the filler at the bottom of the sheet pile. The horizontal partition has a second filter hole with the axis of the second filter hole extending in the vertical direction. The lower surface of the horizontal partition has a filter membrane that can purify the river water.

7. The green and ecological riverbank slope sheet pile support structure according to claim 1, characterized in that, In the width direction of the sheet pile, one end of the floating plate is provided with a snap-fit ​​groove, and the other end is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion can be seamlessly connected with the snap-fit ​​groove of the adjacent floating plate.

8. The green and ecological riverbank slope sheet pile support structure according to claim 1, characterized in that, The lower end of the sheet pile is pointed, and the pointed end is used to insert into the soil layer of the riverbank slope.

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