Landscape type anti-flood wall suitable for low water head

Abstract

The utility model relates to the technical field of flood control in water conservancy projects, in particular to a landscape type flood control wall suitable for a low water head, which has the functions of flood control, landscape, ecological leisure and the like. The structure comprises a horizontal section, a vertical section, a flower bed section and a stool section, the horizontal section is arranged in an embankment foundation, the vertical section, the flower bed section and the stool section are all arranged at the upper end of the horizontal section, one side of the vertical section is a water facing side, the other side of the vertical section is a water backing side, and the flower bed section and the stool section are both located on the water backing side. The utility model is suitable for narrow sections of urban areas, the backwater side adopts a stool type and small flower bed structures which are arranged at intervals, the sitting and lying area, the flower and plant area and the wall body are combined to facilitate sightseeing and resting of citizens along the river, and the outer facade adopts a granite outer decorative veneer and can be fully integrated into a river shoal hydrophilic ecological landscape system; the main body is of a cantilever type structure, masonry materials are saved, the wall body is light, loads are reduced, and durability, economical efficiency and safety are fully considered.

Description

Technical Field

[0001] The utility model relates to the technical field of flood prevention in water conservancy projects, in particular to a landscape type flood prevention wall suitable for low water head. Background Art

[0002] Against the backdrop of climate change, extreme weather events are becoming more frequent, increasing the pressure on urban flood control. Levees, as fundamental urban flood control infrastructure, play a central role in preventing floods and protecting cities and residents from the harms of water. Furthermore, as a crucial component of urban public infrastructure, levees are receiving increasing attention and recognition for their ecological functions and the value of their cultural landscape design in urban planning.

[0003] my country currently has a variety of flood control wall types, including gravity and counterweight structures. Retaining walls rely on their own weight to maintain balance and stability. They are the most traditional structural type, simple in form and easy to construct, and are still widely used. However, due to their heavy weight, construction on soft foundations is often limited by bearing capacity, and the walls consume relatively high amounts of material, making them less economical. Their rigid appearance also results in poor landscape effects. Furthermore, low-head flood control walls in urban areas currently tend to utilize removable flood control retaining panels and glass door landscape flood control walls, which require disassembly during flood season. These walls also fail to integrate landscape with human habitats, hindering tourists' enjoyment of the riverscape and rest in the confined riverside areas.

[0004] Therefore, the existing flood wall structure has the disadvantages of being heavy, poor in economy, poor in landscape effect, and not conducive to viewing and resting. Utility Model Content

[0005] The purpose of the utility model is to provide a landscape flood wall suitable for low water head. It is a combination of a sitting and lying area, a flower and grass area and a wall. It is suitable for narrow areas in urban areas, has a light structure, and is convenient for people to live and rest. It can solve the technical problems of existing flood wall structures such as heavy weight, poor economy, poor landscape effect, and being unfavorable for viewing and rest.

[0006] To achieve the above-mentioned purpose, the utility model designs a landscape flood wall suitable for low water head, including a horizontal section, a vertical section, a flower bed section, and a bench section. The horizontal section is arranged inside the embankment foundation, and the vertical section, the flower bed section, and the bench section are all arranged at the upper end of the horizontal section. The vertical section extends upward to above the flood level line. One side of the vertical section is the water-facing side, and the other side of the vertical section is the water-receiving side. The flower bed section and the bench section are both located on the water-receiving side.

[0007] As a preferred solution, the flower bed section and the bench section are arranged at intervals along the length direction of the vertical section at the upper end of the horizontal section, with a longitudinal spacing of 2m to 3.5m.

[0008] Furthermore, the flower bed section includes solid bricks arranged vertically at the upper end of the horizontal section, the solid bricks extend above the ground, and the solid bricks and the vertical section together form a planting area, in which flowers and grass, planting soil, and a bottom graded gravel filter layer are arranged in sequence from top to bottom.

[0009] Furthermore, the bottom graded crushed stone filter layer includes three layers, namely, a medium-coarse sand layer, a gravel layer, and a crushed stone layer arranged in sequence from top to bottom, and the thickness of each layer is not less than 10 cm.

[0010] Furthermore, a drainage pipe connected to the urban road pipe is arranged at the bottom of the gravel layer.

[0011] As a preferred solution, the seat section and the vertical section are cast as a whole, the seat section extends above the ground, the top is pressed with granite, and the sides are decorated with granite veneer.

[0012] Furthermore, the front end of the seat section is inclined downward.

[0013] Furthermore, the width of the bench section is 0.3m to 0.5m, and the width of the flower bed section is 0.6m to 0.8m.

[0014] As a preferred solution, expansion joints are set every 10m in the vertical section, with a width of 2cm, and polyethylene low-foam filling plates and rubber strips are arranged in the expansion joints.

[0015] As a preferred solution, a basic gravel cushion layer is arranged below the horizontal section.

[0016] The beneficial effects of the utility model are:

[0017] 1. This utility model is suitable for narrow areas in urban areas. Benches and small flower beds are arranged on the back side of the water. The sitting and lying areas, flower and grass areas are combined with the walls to facilitate citizens to sightsee and rest along the river. The facade is decorated with granite exterior veneer, which can be fully integrated into the river beach hydrophilic ecological landscape system.

[0018] 2. The main body of the utility model adopts a cantilever structure, which saves masonry materials, makes the wall light, reduces the load, and reduces excavation disturbance. It is suitable for narrow areas in urban areas and fully takes into account durability, economy and safety.

[0019] 3. The utility model is suitable for flood control in narrow areas of urban areas with low water heads below 2m, avoiding the installation and disassembly procedures of traditional low-head temporary flood control baffles, with a small construction excavation disturbance area, saving space, and a simple structure that is easy to repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the flower bed section of the present utility model;

[0021] Figure 2This is a schematic diagram of the cross-sectional structure of the seat section of the utility model;

[0022] Figure 3 This is a schematic diagram of the dorsal side planar structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the planar structure of the present utility model.

[0024] Reference numerals:

[0025] 1-Flood wall; 101-horizontal section; 102-vertical section; 103-flower bed section; 104-bench section; 2-gravel cushion layer; 3-granite top layer; 4-granite exterior veneer; 5-solid brick; 6-a type of planting soil; 7-flowering and grass planting; 8-bottom graded gravel filter layer; 9-bottom drainage pipe; 10-design flood level; 11-ground finish surface. DETAILED DESCRIPTION

[0026] 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 with reference to 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 intended to limit the present invention.

[0027] This utility model is suitable for flood control in narrow urban areas with low water heads below 2m. It avoids the installation and disassembly procedures of traditional low-head temporary flood control baffles, has a small construction and excavation disturbance area, saves space, and has a simple structure and is easy to repair. The main body adopts a cantilever structure, which saves masonry materials, makes the walls light, reduces loads, and reduces excavation disturbance. It is suitable for narrow urban areas and fully takes into account durability, economy, and safety. Benches and small flower beds are arranged at intervals on the backwater side. Sitting and sleeping areas, flower and grass areas are combined with the walls to facilitate citizens to sightsee and rest along the river. The facade is clad with granite exterior veneer, which can be fully integrated into the river beach hydrophilic ecological landscape system.

[0028] The utility model provides a landscape flood wall suitable for low water head, comprising a horizontal section 101, a vertical section 102, a flower bed section 103, and a bench section 104. The horizontal section 101 is arranged inside the embankment foundation, and the vertical section 102, the flower bed section 103, and the bench section 104 are all arranged above the horizontal section 101. The vertical section 102 extends upward to above the flood level line. One side of the vertical section 102 is the water-facing side, and the other side of the vertical section 102 is the water-receiving side. The flower bed section 103 and the bench section 104 are both located on the water-receiving side.

[0029] The flower bed section 103 and the bench section 104 are arranged above the horizontal section 101 along the length direction of the vertical section 102, with a longitudinal spacing of 2m to 3.5m. The flower bed section 103 includes a solid brick 5 vertically arranged at the upper end of the horizontal section 101, and the solid brick 5 extends above the ground. The solid brick 5 and the vertical section 102 together form a planting area, and the planting area is arranged from top to bottom with flowers and grass 7, planting soil 6, and a bottom graded gravel filter layer 8. The bottom graded gravel filter layer 8 includes three layers, which are a medium-coarse sand layer, a gravel layer, and a gravel layer, and the thickness of each layer is not less than 10cm. A drainage pipe 9 connected to the urban road pipe is arranged at the bottom of the gravel layer.

[0030] The seat section 104 is integrally cast with the vertical section 102, and the seat section 104 extends above the ground, with a granite top 3 on the top and a granite exterior veneer 4 on the side. The front end of the seat section 104 is tilted downward.

[0031] A foundation gravel cushion layer 2 is arranged below the horizontal section 101. Expansion joints are arranged every 10m in the vertical section 102, with a width of 2cm, and polyethylene low-foaming caulking plates and rubber strips are arranged in the expansion joints.

[0032] The technical solution of the present utility model is further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1 、 Figure 2 The figure shows a landscape-style floodwall suitable for low water heads. It includes a C30 reinforced concrete cantilever floodwall 1 and a gravel cushion 2 at the embankment; a granite capping 3 at the top of the floodwall and in the backwater-side bench section; granite exterior veneer 4 on the front and backwater-side facades; flowers and grass 7, planting soil 6, and a graded gravel filter layer 8 at the bottom of the flowerbed section on the backwater side of the floodwall; and MU20 concrete solid bricks 5 and bottom drainage pipes 9 in the flowerbed section on the backwater side of the floodwall. The design flood level 10 is located on the frontwater side, and the finished ground surface 11 is located on the backwater side. The vertical section 102 is higher than the design flood level 10, while the flowerbed section 103 and bench section 104 are higher than the finished ground surface 11.

[0034] The flood wall foundation is set up at the bank side. A crushed stone cushion layer 2 is first laid between the C30 reinforced concrete cantilever flood wall 1 and the original soil foundation. The bottom of the crushed stone cushion layer 2 is compacted with plain soil, and the compaction degree is ≥0.93. The well-graded gravel composed of fine sand and gravel sand is used. The maximum particle size is ≤20mm, the content of 2mm-20mm particles should not be greater than 12%, the content of particles smaller than 0.075mm is less than 15%, the mud content is ≤1.5%, the mud block content is ≤0.7%, and the content of needle-shaped particles is ≤15%. The maximum dry density is 2.1t / m 3, compaction coefficient is not less than 0.96, and the minimum dry density is controlled at 2.02t / m 3 . The thickness of the flood wall shall not be less than 0.2m, the width of the flood wall bottom plate shall not be less than 0.7 times the height of the flood wall, and expansion joints with a width of 2cm shall be set every 10m of the flood wall. The expansion joints shall use polyethylene low-foam caulking panels and water-swelling water-stop rubber strips. The depth of the natural foundation shall not be less than 0.8m. If the base surface of the flood wall structure is anti-slip and stable or the foundation stress still does not meet the requirements of the specification, foundation treatment is required. The foundation can be reinforced by methods such as replacement filling, which is convenient for construction. The replacement filling depth depends on factors such as the height of the flood wall, the height of the retaining wall behind the wall, and the water level in front of the wall. The specific engineering design is determined through stability calculations. After the construction of the crushed stone cushion layer 2C30 reinforced concrete cantilever flood wall 1 is completed and reaches the design strength, the granite exterior veneer 4 on the water-facing and water-retaining sides shall be constructed. The selection of building materials for the facade tiles can fully consider the local cultural landscape and keep the color difference basically consistent.

[0035] like Figure 1 、 Figure 4 As shown, the flower bed section is 0.6m to 0.8m wide and is constructed with MU20 solid concrete bricks 5. The flower bed section is planted with flowers and grass 7, planting soil 6, and a graded crushed stone filter layer 8 at the bottom. The flowers and grass 7 can be local specialty flowers. The graded crushed stone filter layer 8 is designed to be arranged in three layers: a medium-coarse sand layer, a gravel layer, and a crushed stone layer, arranged from top to bottom. Each layer is no less than 10cm thick. The medium-coarse sand layer has a particle size range of d = 0.15 to 2mm, d50 = 0.8 to 0.9mm, and a non-uniformity coefficient Cu = 4 to 4.5; the gravel layer has a particle size range of d = 220mm, d50 = 8.0 to 9.0mm, and a non-uniformity coefficient Cu = 3 to 3.5; and the crushed stone layer has a particle size range of d = 20 to 40mm, d50 = 40 to 50mm, and a non-uniformity coefficient Cu = 2 to 2.5. A drainage pipe 9 is set at the bottom of the gravel layer to lead the water accumulated in the flower bed into the urban area along the road drainage main, which is pre-buried with PVC or other material pipes, with a hole diameter of 5 to 12 cm. The specifications and spacing can be adjusted according to the size of the flower bed to meet the drainage capacity. Figure 4 shown.

[0036] like Figure 2 As shown, the width of the bench section is 0.3m to 0.5m. The bench section is cast integrally with the flood wall. The top is made of granite capping 3 which matches the granite capping type of the flood wall top. Other materials that meet the comfort of human sitting and lying can also be used as appropriate. The front end of the bench is tilted downward by 2% to avoid water accumulation inside.

[0037] like Figure 3 As shown, the bench section and the flower bed section on the back water side are arranged at intervals, with a longitudinal spacing and length of 2m to 3.5m.

[0038] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A landscape flood wall suitable for low water head, characterized by: The invention comprises a horizontal section (101), a vertical section (102), a flower bed section (103), and a bench section (104). The horizontal section (101) is arranged inside the embankment foundation. The vertical section (102), the flower bed section (103), and the bench section (104) are all arranged above the horizontal section (101). The vertical section (102) extends upward to above the flood level line. One side of the vertical section (102) is the water-facing side, and the other side of the vertical section (102) is the water-receiving side. The flower bed section (103) and the bench section (104) are both located on the water-receiving side.

2. A landscape flood wall suitable for low water head according to claim 1, characterized in that: The flower bed section (103) and the bench section (104) are arranged above the horizontal section (101) at intervals along the length direction of the vertical section (102), with a longitudinal spacing of 2m to 3.5m.

3. A landscape flood wall suitable for low water head according to claim 2, characterized in that: The flower bed section (103) includes a solid brick (5) vertically arranged at the upper end of the horizontal section (101), the solid brick (5) extending above the ground, and the solid brick (5) and the vertical section (102) enclose a planting area, in which flowers and grass (7), planting soil (6), and a bottom graded crushed stone filter layer (8) are arranged in sequence from top to bottom.

4. A landscape flood wall suitable for low water head according to claim 3, characterized in that: The bottom graded crushed stone filter layer (8) comprises three layers, namely, a medium-coarse sand layer, a sand gravel layer, and a crushed stone layer arranged in sequence from top to bottom, with each layer having a thickness of not less than 10 cm.

5. A landscape flood wall suitable for low water head according to claim 4, characterized in that: A drainage pipe (9) communicating with the urban road pipe is arranged at the bottom of the gravel layer.

6. The landscape flood wall suitable for low water head according to claim 1, characterized in that: The seat section (104) and the vertical section (102) are cast as a whole. The seat section (104) extends above the ground, and the top is made of granite (3) and the side is decorated with granite veneer (4).

7. A landscape flood wall suitable for low water head according to claim 6, characterized in that: The front end of the seat section (104) is inclined downward.

8. The landscape flood wall suitable for low water head according to claim 1, characterized in that: The width of the bench section (104) is 0.3m to 0.5m, and the width of the flower bed section (103) is 0.6m to 0.8m.

9. A landscape flood wall suitable for low water head according to any one of claims 1 to 8, characterized in that: The vertical section (102) is provided with expansion joints every 10 m, with a width of 2 cm, and polyethylene low-foaming caulking plates and rubber strips are arranged in the expansion joints.

10. A landscape flood wall suitable for low water head according to claim 9, characterized in that: A foundation gravel cushion layer (2) is arranged below the horizontal section (101).

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