Composite type urban flood bank heightened section structure

Abstract

The utility model provides a heightened section structure of a composite type urban flood bank, which belongs to the technical field of urban flood control in water conservancy projects and comprises a gravity type retaining wall, a first drainage pipe and a second drainage pipe. The embankment top structure is arranged at the top of the gravity type retaining wall; the levee top structure comprises a flood control lifting area, a slow walkway area and a greening landscape area which are sequentially arranged from the levee top to the inner side of the levee. The dike foot structure is arranged on an out-dike beach land at the bottom of the gravity type retaining wall; the dike foot structure comprises a dike-near foot protection area, a hydrophilic leisure area and an anti-scour bank protection area which are sequentially arranged from the dike foot to the outer side of the dike. The heightened section structure of the composite urban flood control bank has multiple functions of flood control lifting, slow traffic, landscape greening, bank foot protection and hydrophilic leisure.

Description

Technical Field

[0001] The utility model belongs to the technical field of urban flood control in water conservancy projects. More specifically, it relates to a composite cross-section structure for raising the height of an urban flood control dyke. Background Art

[0002] The rapid development of the economic society has put forward higher requirements for the urban flood control system, and the concept of water ecological civilization construction has also been deeply rooted in people's hearts. In the construction of the urban flood control system in the new era, in addition to raising and strengthening the existing dykes according to the planned flood control standards, it is also necessary to meet the needs of residents in aspects such as hydrophilic leisure, ecological landscape, and slow traffic.

[0003] Generally speaking, urban main traffic roads, commercial or residential buildings are usually distributed along the river. When raising and strengthening the dykes, not only the safety of the dyke structure needs to be ensured, but also the limitations of urban construction space need to be considered. Using the form of adding soil to the dyke to raise its height will inevitably occupy a large area of urban construction land, and even damage existing traffic facilities or buildings. Therefore, at present, most of the urban flood control dykes are raised by adding various types of flood control walls on the existing dykes, such as reinforced concrete flood control walls, detachable flood control walls, glass flood control walls, etc., but their applicability is still restricted by various factors. The traditional reinforced concrete flood control wall has a safe structure and mature technology, but its aesthetics is poor, affecting the urban riverside style; the detachable flood control wall is only used temporarily during the flood season, with a light weight and convenient disassembly and assembly, but a special storage warehouse needs to be set up, and there is a risk of untimely flood control response during large-scale installation during the flood season; the glass flood control wall has a transparent view and good landscape effect, but the height increase is limited, and the later operation and maintenance cost is relatively high. In addition, for urban dyke sections with a large shortage in the height of the dyke top, simply relying on the above-mentioned wave break walls to raise the height will not only create the visual effect of high walls surrounding the city, but also seriously affect the overall urban style and the living experience of residents.

[0004] When designing the height increase of urban dykes, it should be combined with the actual situation of the project and the needs of ecological landscape construction, weakening the rigid appearance of reinforced concrete and integrating the riverside aesthetics for design. The landscape and leisure multi-functional hidden flood control wall structure disclosed in CN213061896U has improved the landscape of the flood control wall to a certain extent, but when the retaining wall is relatively high, it seriously blocks the view of the river. The multi-functional ecological river cross-section structure disclosed in CN219772852U combines flood control, ecology, and pedestrian needs, but it is not applicable to urban dykes where the existing dyke system has basically taken shape and still needs to be significantly raised in height.

[0005] Therefore, for the riverside cities that need to raise the height of the existing dykes according to the new flood control standards, it is very necessary to propose a composite cross-section structure for raising the height of an urban flood control dyke that takes into account multiple functions such as flood control improvement, slow traffic, green landscape, dyke foot protection, and hydrophilic leisure. Content of the Utility Model

[0006] In view of the problems faced during the heightening of urban flood control dikes, such as a large increase in the elevation of the dike crest, limited urban construction land, high ecological landscape requirements, and strong slow-moving and rest needs, the present utility model proposes a composite urban flood control dike heightening section structure that takes into account multiple functions including flood control improvement, slow traffic, green landscape, dike foot protection, and hydrophilic leisure.

[0007] To achieve the above object, the present utility model provides a composite urban flood control dike heightening section structure, comprising:

[0008] A gravity retaining wall with a first drain pipe provided on the wall body;

[0009] A dike crest structure provided on the top of the gravity retaining wall; the dike crest structure includes a flood control improvement area, a slow walking path area, and a green landscape area sequentially arranged from the dike crest to the inner side of the dike; and,

[0010] A dike foot structure provided on the dike outer beach land at the bottom of the gravity retaining wall; the dike foot structure includes a near-dike foot protection area, a hydrophilic leisure area, and an anti-scour revetment area sequentially arranged from the dike foot to the outer side of the dike.

[0011] Further, the flood control improvement area includes a cantilever retaining wall and a first protective railing. The cantilever retaining wall is connected to the upper side of the gravity retaining wall by implanting steel bars, and the first protective railing is installed on the upper side of the cantilever retaining wall.

[0012] Further, a planting groove is provided on the upper water-facing side of the cantilever retaining wall, and hanging plants are planted in the planting groove.

[0013] Further, the top elevation of the slow walking path area is flush with the top of the wall of the cantilever retaining wall; the slow walking path area includes a path base layer and floor tiles laid on the upper surface of the path base layer; clay material or sand and pebble material is filled between the path base layer and the existing ground.

[0014] Further, the green landscape area includes an ecological flower box, the ecological flower box is connected to one side of the slow walking path area, and landscape flowers are planted in the ecological flower box.

[0015] Further, the green landscape area further includes a greening slope surface, the greening slope surface is connected between the ecological flower box and the slow walking path area; planting soil is filled in the lower part of the greening slope surface, turf is laid on the upper part, and the bottom is slope-received by the ecological flower box.

[0016] Further, cultural relief bricks are laid on the surface of the ecological flower box on the side facing the urban road.

[0017] Further, a second drain pipe is buried inside the ecological flower box, and a first drainage ditch is provided on the side of the bottom facing the road; a third drain pipe is pre-buried at the bottom of the first drainage ditch.

[0018] Further, the toe protection area adjacent to the dike includes a first sand-gravel cushion layer and a Reno mattress laid on the first sand-gravel cushion layer.

[0019] Further, the hydrophilic leisure area includes a second sand-gravel cushion layer and an asphalt road laid on the second sand-gravel cushion layer, and a second protective railing is provided on the water-facing side of the hydrophilic leisure area.

[0020] Further, the scouring protection area of the bank includes a third sand-gravel cushion layer and a gabion laid on the third sand-gravel cushion layer, and a concrete foot trench is provided on the water-facing side of the scouring protection area of the bank.

[0021] Further, a second drainage ditch is provided between the toe protection area adjacent to the dike and the hydrophilic leisure area.

[0022] Compared with the prior art, the utility model has the following technical effects:

[0023] A compound type urban flood control dike heightening section structure proposed by the utility model includes a flood control improvement area, a slow walking path area and a greening landscape area which are sequentially arranged from the dike top to the inner side of the dike, and a toe protection area adjacent to the dike, a hydrophilic leisure area and a scouring protection area of the bank which are sequentially arranged from the dike foot to the outer side of the dike. It is a compound type urban flood control dike heightening section structure that can take into account multiple functions such as flood control improvement, slow traffic, greening landscape, toe protection of the dike and hydrophilic leisure.

[0024] The utility model combines the flood control improvement area with the slow walking path area, which not only realizes a large-scale heightening of the current dike top elevation to meet the requirements of urban flood control standard improvement, but also avoids the visual perception of a high wall surrounding the city, ensures sufficient river view, and at the same time provides a slow walking path on the dike top to meet the daily passage needs of residents.

[0025] The toe protection area adjacent to the dike, the scouring protection area of the bank and the hydrophilic leisure area set on the dike foot beach of the utility model not only slow down the scouring of the river water on the toe of the current dike and the outer bank beach, but also create a riverside beach ecological landscape and provide a hydrophilic rest place for residents.

[0026] The hanging plants planted on the water-facing side of the cantilever retaining wall of the utility model and the wall cultural reliefs on the road-facing side of the ecological flower boxes not only modify the rigid appearance of the steel-concrete wall, but also further enhance the urban style and cultural characteristics.

[0027] The design of combining the greening slope of the greening landscape area of the utility model with the ecological flower boxes for slope closing not only increases the urban greening area, improves the aesthetic feeling of the urban road along the river, but also effectively reduces the occupation of the space inside the dike. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 An overall schematic diagram of a composite urban flood levee heightened cross-section structure provided by an embodiment of the utility model;

[0030] Figure 2 for Figure 1 A partial enlarged structural diagram of the middle embankment top structure;

[0031] Figure 3 for Figure 1 Schematic diagram of the partial enlarged structure of the middle embankment foot structure.

[0032] Among them, the reference numerals in the figure are:

[0033] 1. Gravity retaining wall, 2. Flood control lifting area, 3. Slow walking path area, 4. Green landscape area, 5. Embankment foot protection area, 6. Water-friendly leisure area, 7. Anti-scouring revetment area, 11. First drainage pipe, 21. Cantilever retaining wall, 22. First protective railing, 23. First concrete cushion, 24. Steel bars, 25. Planting trough, 31. Trail base, 32. Floor tiles, 33. Clay or sand and gravel, 34. Leisure seats, 35. First curb, 4 1. Green slope, 42. Ecological flower box, 43. Second concrete cushion layer, 44. Cultural relief rotation, 45. Second drainage pipe, 46. First drainage ditch, 47. Third drainage pipe, 51. Renault pad, 52. First gravel cushion layer, 53. Second drainage ditch, 61. Second curbstone, 62. Asphalt road, 63. Second gravel cushion layer, 64. Second guardrail, 71. Gabion stone cage, 72. Third gravel cushion layer, 73. Concrete foot trough. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] In the present invention, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the orientation or positional relationship indicated by terms such as "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0038] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms of "a", "the", and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0039] The terms "first" and "second" are only used for descriptive purposes to distinguish objects such as substances from each other, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. For example, without departing from the scope of the embodiments of the present invention, the first XX can also be referred to as the second XX, and similarly, the second XX can also be referred to as the first XX. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features.

[0040] Taking a section of the riverfront dike in a certain place in Sichuan Province as an example, the current urban dike is a gravity flood control wall, and its flood control capacity has not reached the planned flood control standard. It is necessary to raise the height of the current dike. The sidewalk on the inner side of the dike and the urban main road are distributed along the dike, and the available construction space is relatively limited. At the same time, the urban positioning has high requirements for the ecological landscape. Based on this, a dike heightening section structure that can take into account multiple requirements is designed.

[0041] Please refer to Figures 1-3 , and now a composite urban flood control dike heightening section structure provided by the embodiments of the present invention will be described.

[0042] In an embodiment of the present utility model, a composite type urban flood control levee heightening section structure of the embodiment of the present utility model includes a gravity retaining wall 1, a levee top structure and a levee foot structure. The gravity retaining wall 1 is the existing urban flood control levee, and the levee top structure and the levee foot structure are the innovative design structures of the embodiment of the present utility model. A first drain pipe 11 is provided on the wall body of the gravity retaining wall 1; the levee top structure is arranged on the top of the gravity retaining wall 1, and the levee top structure includes a flood control improvement area 2, a slow walking path area 3 and a greening landscape area 4 arranged in sequence from the levee top to the inner side of the levee; the levee foot structure is arranged on the levee beach land at the bottom of the gravity retaining wall 1, and the levee foot structure includes a near-levee foot protection area 5, a hydrophilic leisure area 6 and an anti-scour revetment area 7 arranged in sequence from the levee foot to the outer side of the levee. Here, the outer side of the levee refers to the water-facing side.

[0043] A composite type urban flood control levee heightening section structure of the embodiment of the present utility model includes a flood control improvement area 2, a slow walking path area 3 and a greening landscape area 4 arranged in sequence from the levee top to the inner side of the levee, and a near-levee foot protection area 5, a hydrophilic leisure area 6 and an anti-scour revetment area 7 arranged in sequence from the levee foot to the outer side of the levee. It is a composite type urban flood control levee heightening section structure that can take into account multiple functions such as flood control improvement, slow traffic, greening landscape, levee foot protection and hydrophilic leisure.

[0044] Furthermore, the flood control improvement area 2 of this embodiment includes a cantilever retaining wall 21 and a first protective railing 22. A first concrete cushion 23 is laid under the bottom plate of the cantilever retaining wall 21. The cantilever retaining wall 21 is connected to the upper side of the gravity retaining wall 1 through implanted steel bars 24, and the first protective railing 22 is installed on the upper side of the cantilever retaining wall 21. The wall height of the cantilever retaining wall 21 is determined according to the planned design flood level and the safety freeboard of the levee, and the bottom plate length is comprehensively determined according to the results of stability calculation. The first protective railing 22 can be installed at the center of the top of the cantilever retaining wall 21, and the appearance and material suitable for the urban appearance can be selected. The height of the first protective railing 22 can be set to 1.2 m, and lighting fixtures are installed at the top. Before construction, lighting pipelines, wires, etc. need to be pre-buried.

[0045] Specifically, the cantilever retaining wall 21 is a reinforced concrete structure, the retaining wall toe slab is flush with the top edge of the existing gravity retaining wall 1, and the retaining wall heel slab extends into the slow walking path area 3.

[0046] Furthermore, a planting groove 25 is provided on the upper water-facing side of the cantilever retaining wall 21 of this embodiment, and hanging plants are planted in the planting groove 25. Specifically, an L-shaped reinforced concrete structure is arranged on the upper water-facing side of the cantilever retaining wall 21, which forms the planting groove 25 together with the wall body. After filling the planting groove 25 with planting soil, hanging plants such as ivy, hoya carnosa, and senecio rowleyanus can be planted to block the outer facade of the water-facing side of the cantilever retaining wall 21, weaken the rigid reinforced concrete appearance, and improve the landscape effect along the river.

[0047] Furthermore, the top elevation of the slow walking path area 3 of this embodiment is flush with the top of the cantilever retaining wall 21; the slow walking path area 3 includes a walking path base 31 and floor tiles 32 laid on the upper surface of the walking path base 31, the walking path base 31 is a concrete structure, and the floor tiles 32 can be stone floor tiles; clay or sand and gravel 33 is filled between the walking path base 31 and the existing ground. Leisure seats 34 can also be installed at intervals along the backwater side of the slow walking path area 3 for residents to rest and watch the river, and a first concrete curb 35 is set between the slow walking path area 3 and the green landscape area 4.

[0048] Furthermore, the green landscape area 4 of the present embodiment includes an ecological flower box 42, which is connected to one side of the slow-moving walkway area 3, and landscape flowers are planted in the ecological flower box 42. Furthermore, the green landscape area 4 of the present embodiment also includes a green slope 41, which is connected between the ecological flower box 42 and the slow-moving walkway area 3; the lower part of the green slope 41 is filled with planting soil, and the upper part is paved with turf to increase the greening area along the urban road, and the bottom is sloped by the ecological flower box 42 to reduce the occupation of the space in the embankment. When the top elevation of the slow-moving walkway area 3 is not high, the green slope 41 can be cancelled, and the height of the ecological flower box 42 can be adjusted to be flush with the slow-moving walkway area 3.

[0049] Furthermore, the surface of the ecological flower box 42 of this embodiment facing the urban road is paved with cultural relief bricks 44, which increases the humanistic atmosphere of the city and spreads historical culture.

[0050] Furthermore, a second drainage pipe 45 is buried inside the ecological flower box 42 of this embodiment, and a first drainage ditch 46 is arranged on the road side of the bottom; a third drainage pipe 47 is pre-buried at the bottom of the first drainage ditch 46 .

[0051] Specifically, the ecological flower box 42 is a reinforced concrete structure, with a second concrete cushion layer 43 laid under the bottom plate, and landscape flowers planted after being filled with planting soil inside to decorate the urban riverside streetscape. Rainwater in the green slope 41 and the ecological flower box 42 is collected through the second drainage pipe 45 to the first drainage ditch 46 on the road side at the bottom of the ecological flower box 42. The third drainage pipe 47 is pre-buried at the bottom of the first drainage ditch 46 and connected to the first drainage pipe 11 on the existing urban flood control embankment through the stratum to reduce the infiltration pressure.

[0052] Furthermore, the dike foot protection area 5 of this embodiment includes a first gravel cushion layer 52 and a Reno cushion 51 laid on the first gravel cushion layer 52. The dike foot protection area 5 mainly reduces the scouring of the dike foot by water flow by laying the Reno cushion 51 on the beach near the existing dike foot, and the first gravel cushion layer 52 is laid on the lower part, and grass seeds or landscape plants can be sown on the upper part after the planting soil layer is filled to create a riverside beach ecological landscape.

[0053] Furthermore, a second drainage ditch 53 is provided between the flood embankment foot protection area 5 and the hydrophilic leisure area 6 in this embodiment, which can intercept the groundwater seeping out from the existing flood embankment.

[0054] Furthermore, the hydrophilic leisure area 6 in this embodiment includes a second sand cushion layer 63 and an asphalt road 62 laid on the second sand cushion layer 63. A second protective railing 64 is provided on the water-facing side of the hydrophilic leisure area 6. Specifically, second curb stones 61 are provided on both sides of the hydrophilic leisure area 6, and the asphalt road 62 is located between the second curb stones 61. The asphalt road 62 can be laid with colored asphalt. The top elevation of the asphalt road 62 is above the normal water level. A second sand cushion layer 63 is provided at the lower part. A second protective railing 64 is provided at the top of the second curb stone 61 on the water-facing side. The second protective railings 64 are connected by iron chains to improve the safety during hydrophilic activities.

[0055] Furthermore, the erosion protection bank area 7 in this embodiment includes a third sand cushion layer 72 and gabion cages 71 laid on the third sand cushion layer 72. A concrete foot trough 73 is provided on the water-facing side of the erosion protection bank area 7. The erosion protection bank area 7 protects the beach by laying gabion cages 71 to ensure the overall stability of the hydrophilic leisure area 6. The third sand cushion layer 72 is laid at the lower part of the gabion cages 71. After filling the planting soil layer on the upper part, grass seeds can be sown or landscape plants can be planted.

[0056] The above embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A composite type structure for raising the cross-section of a city flood control dyke, characterized in that Comprising: A gravity retaining wall with a first drain pipe provided on the wall body; A dike top structure provided on the top of the gravity retaining wall; the dike top structure includes a flood control and elevation area, a slow walking path area, and a greening landscape area arranged in sequence from the dike top to the inner side of the dike; and, A dike foot structure provided on the beach land outside the dike at the bottom of the gravity retaining wall; the dike foot structure includes a near-dike foot protection area, a hydrophilic leisure area, and an erosion protection revetment area arranged in sequence from the dike foot to the outer side of the dike.

2. The composite urban flood control levee heightening section structure according to claim 1, characterized in that, The flood control and elevation area includes a cantilever retaining wall and a first protective railing. The cantilever retaining wall is connected to the upper side of the gravity retaining wall by implanting steel bars, and the first protective railing is installed on the upper side of the cantilever retaining wall.

3. The compound type urban flood control levee heightening cross-section structure according to claim 2, characterized in that, A planting groove is provided on the upper water-facing side of the cantilever retaining wall, and hanging plants are planted in the planting groove.

4. The cross-section structure for raising the height of a composite urban flood control dike according to claim 2, wherein, The top elevation of the slow walking path area is flush with the top of the wall of the cantilever retaining wall; the slow walking path area includes a path base layer and floor tiles laid on the upper surface of the path base layer; clay material or sand and gravel material is filled between the path base layer and the existing ground.

5. The cross-section structure for raising the height of a composite urban flood control dyke according to claim 1, wherein The greening landscape area includes ecological flower boxes, and the ecological flower boxes are connected to one side of the slow walking path area, and landscape flowers are planted in the ecological flower boxes.

6. The compound cross-section structure for raising the height of an urban flood control dike as described in claim 5, wherein, The greening landscape area further includes a greening slope surface, and the greening slope surface is connected between the ecological flower boxes and the slow walking path area; planting soil is filled in the lower part of the greening slope surface, turf is laid on the upper part, and the bottom is slope-received by the ecological flower boxes.

7. The composite type urban flood control levee heightening cross-section structure according to claim 5, characterized in that, Cultural relief bricks are laid on the surface of the ecological flower box on the side facing the urban road; and / or a second drain pipe is buried inside the ecological flower box, and a first drainage ditch is provided on the side facing the road at the bottom; a third drain pipe is pre-buried at the bottom of the first drainage ditch.

8. A composite type urban flood control levee heightening section structure according to claim 1, characterized in that, The near-dike foot protection area includes a first sand and gravel cushion layer and a Reno mattress laid on the first sand and gravel cushion layer.

9. The composite type urban flood control levee heightening section structure according to claim 1, characterized in that, The hydrophilic leisure area includes a second sand and gravel cushion layer and an asphalt road laid on the second sand and gravel cushion layer, and a second protective railing is provided on the water-facing side of the hydrophilic leisure area.

10. The composite type urban flood control levee heightening section structure as claimed in claim 1, characterized in that, The erosion protection revetment area includes a third sand and gravel cushion layer and a gabion mattress laid on the third sand and gravel cushion layer, and a concrete foot groove is provided on the water-facing side of the erosion protection revetment area; and / or a second drainage ditch is provided between the near-dike foot protection area and the hydrophilic leisure area.

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