Ecological landscape weir considering non-flood season traffic

Abstract

This utility model relates to the fields of water conservancy engineering and ecological landscape technology. It discloses an ecological landscape weir that also accommodates traffic during non-flood seasons. The weir includes a main weir, an upstream pedestrian and vehicle passage area, and an anti-erosion paving on the riverbed upstream of this area. A stilling basin is located downstream of the main weir, with landscape stones arranged in a staggered pattern along the downstream face of the weir within the stilling basin. Waterstops are installed at the joints connecting the main weir to the upstream or downstream sections. This utility model saves materials and facilitates the clearing of silt accumulation in front of the weir. It solves the problems of pedestrian and vehicle traffic on both banks during non-flood seasons and localized flow interruption downstream of the weir when upstream water flow is low. It is beneficial for protecting river biodiversity, improving the landscape effect and overall landscape layering, and making the ecological landscape weir both convenient for residents and accessible to the water, thus possessing good comprehensive socio-economic benefits.

Description

Technical Field

[0001] This utility model relates to the fields of water conservancy engineering and ecological landscape technology, and in particular to an ecological landscape weir that also takes into account traffic during non-flood seasons. Background Technology

[0002] Traditional weirs, as low-head water-retaining structures, are mainly used to raise water levels to facilitate water intake or navigation. In recent years, with socio-economic development, people's demands for water landscapes have increased, leading to the construction of weirs in various places to create larger scenic water surfaces. Traditional weirs have a relatively singular function, serving only as water-retaining structures to raise water levels, thus obstructing traffic and requiring the construction of bridges for passage. They also fail to consider the ecological requirements of rivers, often resulting in reduced or even dried-up downstream flow. Furthermore, they neglect the aesthetic appeal of the weirs themselves, exhibiting significant deficiencies in eco-friendliness, traffic convenience, and landscape effect. This leads to the following main problems: 1) They do not consider the needs of pedestrians and vehicles traveling on both banks, hindering the travel of residents on both sides; 2) When upstream flow decreases, it often causes localized reduced or dried-up downstream sections, damaging the river habitat; 3) The weir designs are monotonous and rigid, resulting in poor aesthetic appeal.

[0003] Currently, water management concepts have seen new developments, with convenient, ecological, and scenic water conservancy gaining popularity. The concept of harmonious coexistence between humans and water, and between humans and nature, is increasingly favored. Therefore, it is necessary to design a new type of weir that combines traditional water conservancy functions with ecological, scenic, water-friendly, and convenient functions. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides an ecological landscape weir that takes into account traffic during the non-flood season, solves the traffic problem for vehicles and pedestrians traveling between the two banks, makes the weir convenient for traffic, and also improves the water-friendly effect of the weir.

[0006] (II) Technical Solution

[0007] The technical solution to achieve the above objectives is:

[0008] An ecological landscape weir that also accommodates traffic during non-flood seasons includes a main weir, a pedestrian and vehicle passage area is set up upstream of the main weir, an anti-erosion paving is set up on the riverbed upstream of the pedestrian and vehicle passage area, and an energy dissipation pool is set up downstream of the main weir. Landscape stones are built along the downstream face of the main weir in the energy dissipation pool, and the landscape stones are arranged in a staggered manner.

[0009] Waterstops are installed at the joints connecting the main weir to the upstream or downstream sections.

[0010] Preferably, the pedestrian and vehicle passage area includes a concrete pavement, the bottom of which is provided with side piers and middle piers, and two middle piers are provided between two adjacent side piers. A base plate is provided below the side piers and middle piers, and the pedestrian and vehicle passage area between each two adjacent side piers is a structural segment.

[0011] The length of the central pier is equal to or less than the width of the side piers and the concrete pavement.

[0012] Preferably, warning posts are installed on both sides of the concrete road facing the river. The spacing between the warning posts is ≤2m, the height is ≥0.5m, and the surface is covered with reflective film. The warning posts are detachable and the reflective film on the surface prevents vehicles from falling into the water and improves driving safety at night. The warning posts are detachable and can be removed before flooding to prevent obstruction of flood passage.

[0013] Preferably, the downstream face of the main weir is a sloping face, a vertical face, or a stepped face.

[0014] Preferably, downstream, landscape stones are laid out in a staggered manner to form a multi-tiered waterfall area, which promotes water aeration, is beneficial to the survival of aquatic organisms, and improves water quality.

[0015] Preferably, the downstream landscape stones are constructed using multi-layer, multi-row stacking or single-row stacking, depending on the height of the main weir and the shape of the downstream slope, with a narrower top and wider bottom arrangement to facilitate stability.

[0016] Preferably, the main weir and the landscape stone stacking area are provided with ecological spillway holes, and a control gate valve is provided downstream of the ecological spillway holes.

[0017] Preferably, a cushion layer is provided under the anti-erosion cover, the stilling basin, and the bottom plate.

[0018] The beneficial effects of this utility model are as follows:

[0019] By establishing pedestrian and vehicular access zones, the traffic problems of vehicles and pedestrians traveling between the two banks are solved. This makes the weir convenient for public transportation while also enhancing its waterfront appeal. The inclusion of ecological spillways ensures downstream ecological base flow, preventing habitat destruction in local river sections downstream of the weir, maintaining the continuity of the river's habitat, protecting river biodiversity, and generating positive ecological benefits. The landscape stones combine energy dissipation, waterfall aesthetics, multi-stage gravity aeration, and ecological hole concealment. By placing landscape stones downstream of the main weir, a staggered cascading water area is formed, creating artificial waterfalls with varying drops, increasing water aeration, benefiting aquatic life, improving water quality, and exhibiting a more natural form while also dissipating energy. The ecological holes embedded within enhance the overall landscape layering of the weir. This utility model combines convenience, waterfront accessibility, and ecological landscape friendliness, resulting in significant comprehensive socio-economic benefits. Attached Figure Description

[0020] Figure 1 This is a plan view of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the present invention, section I-I;

[0022] Figure 3 This is a cross-sectional view of the present invention, section II-II;

[0023] In the diagram: 1. Pedestrian and vehicle passage area; 1-1. Concrete pavement; 1-2. Side piers; 1-3. Central piers; 1-4. Base slab;

[0024] 2. Main weir; 3. Landscape stones; 4. Stilling basin; 5. Anti-erosion cover; 6. Ecological spillway; 6-1. Gate valve; 7. Water stop; 8. Subbase; 9. Warning post. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation on the present invention.

[0026] like Figure 1-3 As shown, an ecological landscape weir that also accommodates traffic during non-flood seasons includes a main weir 2, a pedestrian and vehicle passage area 1 upstream of the main weir 2, and a stilling basin 4 downstream of the main weir 2. Landscape stones 3 are laid along the downstream face of the main weir 2 within the stilling basin 4, and the landscape stones 3 are arranged in a staggered manner. An anti-erosion cover 5 is installed at the bottom of the river upstream of the pedestrian and vehicle passage area 1. Waterstops 7 are installed at all structural joints. A cushion layer 8 is installed under the anti-erosion cover 5, the stilling basin 4, and the bottom plate 1-4. An ecological discharge hole 6 is installed inside the main weir.

[0027] During construction, the base surface was first excavated according to the design bottom elevation, followed by the pouring of C15 plain concrete layer 8, 10cm thick. Next, the reinforcement of the main weir 2 and the stilling basin 4 was tied and concrete was poured. The concrete grade was C25F150. The main weir 2 has a crest width of 0.5m, with an upright upstream face and a 1:0.5 slope downstream face connecting to the bottom slab of the stilling basin 4, which is 0.6m thick. The stilling basin 4 is 0.8m deep, with a horizontal section length of 12.5m. During the pouring of the main weir 2, ecological spillway 6 and water stop between it and the bottom slab 1-4 are pre-embedded. The diameter of the ecological spillway 6 is 0.8m. The control point of the gate valve 6-1 is placed on the downstream side. After that, the anti-scour cover 5 is reinforced and concrete is poured. The concrete grade is C25F150. The concrete cover 5 is 8.0m long and 0.5m thick. After that, the pedestrian and vehicle passage area 1 is reinforced and concrete is poured. The concrete grade is C25F150. Two intermediate piers 1-3 are set between two adjacent side piers 1-2. A base slab 1-4 is set below each side pier 1-2 and intermediate pier 1-3. The pedestrian and vehicle passageway 1 between each pair of adjacent side piers 1-2 is considered a structural segment. Each structural segment includes a concrete pavement 1-1, two side piers 1-2, two intermediate piers 1-3, and a base slab 1-4. Two intermediate piers 1-3 are set between the two side piers 1-2. Designed as a Class IV highway, the concrete pavement 1-1 is 7m wide, with a single-span clear width of 2.0m and a clear height of 2.1m. The culvert base slab 1-4 is 0.5m thick. The walls of both side piers 1-2 and intermediate piers 1-3 are 0.5m thick, and the concrete pavement 1-1 is 0.4m thick. Side piers 1-2 are 7m long in the direction of water flow, and intermediate piers 1-3 are 6m long in the direction of water flow.

[0028] Landscape stones 3 are built along the downstream face of the main weir 2 inside the stilling basin 4. The landscape stones 3 are arranged in a staggered manner and are firmly built in accordance with the requirements of stability and aesthetics, with a minimum particle size of not less than 50cm, deep joints, no exposed mortar, narrow at the top and wide at the bottom.

[0029] Downstream landscape stones are arranged in a staggered pattern to form a multi-tiered waterfall area, which promotes water aeration, is beneficial to the survival of aquatic organisms, and improves water quality.

[0030] Warning posts 9 are installed on both sides of the concrete pavement 1-1 facing the river. The warning posts 9 are spaced 1.5m apart and 0.8m high. The surface is covered with reflective film to prevent vehicles from falling into the water and improve driving safety at night. The warning posts are detachable and should be removed before flooding to prevent obstruction of flood passage.

[0031] This utility model presents an ecological landscape weir that also accommodates traffic during non-flood seasons. By establishing a pedestrian and vehicle passageway 1, it solves the traffic problem for vehicles and pedestrians traveling between the two banks. This makes the weir convenient for public transportation while also enhancing its waterfront appeal. The ecological spillway 6 ensures downstream ecological base flow, preventing habitat destruction in local river sections downstream of the weir, maintaining the continuity of the river's habitat, and contributing to the protection of river biodiversity and positive ecological benefits. The placement of landscape stones 3 downstream of the main weir 2 creates a cascading waterfall area, with each level forming a uniquely shaped artificial waterfall with varying drops, exhibiting a more natural form and also contributing to energy dissipation. This enhances the overall landscape quality of the weir. Two middle piers 1-3 are set between two adjacent side piers 1-2 under the road surface in front of the weir. A bottom plate 1-4 is set under the side piers 1-2 and the middle piers 1-3. The pedestrian and vehicle passage area 1 between each two adjacent side piers 1-2 is a large hole type of structural segment, which can reduce the self-weight of the structure, save engineering materials, and facilitate the cleaning of the siltation of the flow hole on the weir.

[0032] The main weir 2 is a water-retaining structure. A pedestrian and vehicle passageway 1 is located upstream of the main weir 2 to allow pedestrians and vehicles to cross the river during non-flood seasons. A stilling basin 4 is located downstream of the main weir 2 to dissipate excess energy from the water flow. Landscape stones 3 are laid along the downstream face of the main weir 2 within the stilling basin 4, arranged in a staggered pattern to form a cascading waterfall, creating a dynamic artificial waterfall and partially dissipating energy. An anti-scour cover 5 is installed on the riverbed upstream of the passageway. Waterstops are installed at all structural joints, and a cushion layer is installed under the structural base slab. An ecological spillway 6 is installed within the main weir 2. A gate valve 6-1 is installed on the downstream outflow side of the ecological spillway 6. When the upstream inflow is less than the ecological base flow, the gate valve 6-1 is opened, ensuring a basic flow that sustains the river's ecosystem year-round. The anti-scour cover 5 upstream and the stilling basin 4 downstream connect to the original river channel protection. This invention saves materials and facilitates the clearing of silt deposits in front of the weir. It solves the problems of pedestrian and vehicle traffic on both banks during the non-flood season and the local flow interruption downstream of the weir when the upstream water flow is low. It is conducive to protecting the biodiversity of the river, improving the landscape effect and the overall landscape level, and making the ecological landscape weir both convenient for the people and accessible to the water, with good comprehensive social and economic benefits.

[0033] The examples described above are merely illustrative of the technical concept and features of this utility model, intended to enable those skilled in the art to understand and implement the content of this utility model. They are not exhaustive examples of feasible embodiments of this utility model and should not be considered as limiting the scope of its implementation. All changes and improvements made in accordance with the spirit disclosed in this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. An ecological landscape weir that accommodates non-flood season traffic, characterized in that, Includes a main weir (2), a pedestrian and vehicle passage area (1) is set up upstream of the main weir (2), an anti-erosion paving (5) is set up on the riverbed upstream of the pedestrian and vehicle passage area (1), a stilling pool (4) is set up downstream of the main weir (2), and landscape stones (3) are built along the downstream face of the main weir (2) in the stilling pool (4), and the landscape stones (3) are arranged in a staggered manner; Waterstops (7) are installed at the joints where the main weir (2) connects to the upstream or downstream.

2. The ecological landscape weir of claim 1, wherein, The pedestrian and vehicle passage area (1) includes a concrete pavement (1-1), the bottom of which is provided with side piers (1-2) and middle piers (1-3), and two middle piers (1-3) are provided between two adjacent side piers (1-2). A base plate (1-4) is provided below the side piers (1-2) and the middle piers (1-3). The pedestrian and vehicle passage area (1) between each two adjacent side piers (1-2) is a structural segment. The length of the middle pier (1-3) is equal to or less than the width of the side pier (1-2) and the concrete pavement (1-1).

3. The ecological landscape spillway of claim 1, wherein, Warning posts (9) are set on both sides of the concrete pavement (1-1) facing the river. The spacing between the warning posts is ≤2m, the height is ≥0.5m, and the surface is covered with reflective film. The warning posts (9) are detachable.

4. The ecological landscape spillway of claim 1, wherein, The downstream face of the main weir (2) is a sloping surface, a vertical surface, or a stepped surface.

5. The ecological landscape spillway of claim 1, wherein, Downstream, landscape stones are laid out in a staggered manner to form a multi-level waterfall area.

6. An ecological landscape weir that accommodates non-flood season traffic according to claim 5, wherein, Downstream landscape stones (3) are constructed by stacking multiple rows or stacking a single row, with a narrow top and wide bottom arrangement.

7. The ecological landscape spillway of claim 1, wherein, An ecological spillway (6) is provided in the stacking area of ​​the main weir (2) and the landscape stone (3), and a control gate valve (6-1) is provided downstream of the ecological spillway (6).

8. The ecological landscape spillway of claim 2, wherein, A cushion layer (8) is provided under the anti-erosion cover (5), the stilling basin (4), and the bottom plate (1-4).

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