River ecological water retaining weir structure

Abstract

The ecological water retaining weir structure comprises a concrete protection slope, a water retaining dam, an energy dissipation pool, an anti-scour groove and a water taking assembly. Wherein the concrete protection slopes are arranged on the two opposite sides of the river channel, and the concrete protection slopes have preset lengths in the extending direction of the river channel; the retaining dam is arranged between the two opposite concrete protection slopes, the retaining dam is provided with an upstream side and a downstream side, the upstream side is perpendicular to the cross section of the river channel, and the downstream side is a slope surface; the energy dissipation pool and the scour prevention groove are sequentially arranged on the downstream side of the retaining dam. The water taking assembly comprises a water taking pipeline and a water inlet pool, the water inlet pool is located on the other side of the retaining dam side slope, one end of the water taking pipeline communicates with the lower portion of the upstream side, the other end of the water taking pipeline extends to the water inlet pool and communicates with the water inlet pool, and water in the water inlet pool can be used as drinking water or irrigation water; the ecological water retaining weir structure of the river channel can relieve the leakage problem and the water quality problem of the water retaining weir to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of water conservancy engineering facilities, and in particular to a river ecological water retaining weir structure. Background Art

[0002] A weir is a hydraulic engineering facility used to control water flow, prevent floods, and store water. In hydraulic engineering, weirs are widely used in rivers, streams, reservoirs, dams, and other places, playing an important role in water regulation and disaster prevention and protection. Weirs are usually made of different materials, such as earth, stone, concrete, rubber, etc. Different structural forms and materials are selected according to specific needs and site conditions. Weirs play an important role in hydraulic engineering, but there are also some shortcomings and challenges, including technical, environmental, and social issues. For example, some weirs have leakage problems, especially after long-term operation, weir leakage and increased seepage may occur, affecting the stability and effect of the weir; in addition, in some weirs, due to long water storage time or stagnation of water, water quality problems such as eutrophication and excessive growth of algae may occur, affecting water quality and environmental health. Utility Model Content

[0003] An embodiment of the present application provides a river ecological water retaining weir structure, which can alleviate the leakage problem and water quality problem of the water retaining weir to a certain extent.

[0004] The river ecological water retaining weir structure provided in the embodiment of the present application includes: concrete slope protection, the concrete slope protection is arranged on opposite sides of the river channel, and the concrete slope protection has a preset length along the extension direction of the river channel;

[0005] A water retaining dam, the water retaining dam is arranged between the two opposite concrete slope protections, the water retaining dam has a water-facing side and a water-retaining side, the water-facing side is perpendicular to the cross section of the river channel, and the water-retaining side is a slope surface;

[0006] An energy dissipation pool and an anti-scouring groove, wherein the energy dissipation pool and the anti-scouring groove are sequentially arranged on the downstream side of the water retaining dam;

[0007] A water intake assembly, comprising a water intake pipe and a water inlet pool, wherein the water inlet pool is located on the other side of the slope of the water retaining dam, one end of the water intake pipe is connected to the lower position of the water-facing side, and the other end extends to and is connected to the water inlet pool.

[0008] In addition, the river ecological water retaining weir structure provided in the embodiment of the present application may also have the following additional technical features:

[0009] In an optional scheme, stone stepping stones are arranged at preset intervals on the top of the water retaining dam, the overall structure of the water retaining dam adopts C20 buried stone concrete, the slope of the slope surface on the backwater side is 1:1.3~1:1.6; the surface of the backwater side is paved with a layer of C25 concrete cast goose soft stone, and the paving thickness of the C25 concrete cast goose soft stone is 20~40cm.

[0010] In an optional solution, a valve is provided on the water intake pipe, and the valve is arranged in a valve well; the connection between the water intake pipe and the valve well is provided with three oils and two felts and sealed with cement mortar, and a fiberglass cover is provided on the top of the valve well.

[0011] In an optional solution, the energy dissipation pool is provided with a plane foundation, the plane foundation adopts C20 buried stone concrete, and the upper surface of the plane foundation is provided with a plurality of concrete stones; the bottom of the anti-scour groove is provided with gravel to compact the bottom of the riverbed, and a plurality of riprap is provided on the upper part of the anti-scour groove.

[0012] In an optional scheme, the overall body of the water inlet pool is an inverted trapezoidal structure, and the side of the overall body is provided with a slope with a slope of 1:1 and backfilled with earth; the top of the water inlet pool is provided with a C25 reinforced concrete cover plate, and the bottom of the water inlet pool is provided with a C15 concrete cushion layer.

[0013] In an optional solution, the water inlet pool is a square concrete structure, and pebbles and quartz sand are respectively arranged on both sides of the concrete structure; the pipe material of the water intake pipe is ductile iron, and a bell mouth is arranged at the end of the water intake pipe.

[0014] The beneficial effects of the embodiments of the present application are:

[0015] The river ecological weir structure in the embodiment of the present application can store water through the weir, regulate the flow of river water, and obtain relatively clean water from the upstream of the weir for drinking water through the water intake assembly, reducing the large amount of stagnation of water, thereby alleviating the leakage and water quality problems of the weir to a certain extent. During heavy rains, there is more water in the river, and the overflow overflows the weir into the energy dissipation pool in the weir, slowing down the impact of the water flow, and finally slowing down the flow rate again through the anti-scouring groove to prevent the water flow from scouring the bottom of the riverbed.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the plan layout of the river ecological weir structure provided for this application;

[0018] Figure 2 for Figure 1 AA cross-sectional structural diagram of the ecological weir structure in the middle river channel;

[0019] Figure 3 for Figure 1 BB cross-sectional structural diagram of the ecological weir structure in the middle river channel;

[0020] Figure 4 for Figure 1 Schematic diagram of CC cross-section structure of the ecological weir structure in the middle river channel;

[0021] Figure 5 A schematic cross-sectional view of a water inlet pool provided in the present application in a specific embodiment;

[0022] Figure 6 A schematic cross-sectional view of a valve well provided in the present application in a specific embodiment.

[0023] Figure numerals: concrete slope protection 1, C20 concrete foot protection 11, C20 concrete capping 12, river channel 2, water retaining dam 3, water-facing side 31, water-receiving side 32, energy dissipation pool 4, plane foundation 41, water intake assembly 5, water intake pipeline 51, water inlet pool 52, valve 53, integral pool body 54, C25 reinforced concrete cover plate 55, C15 concrete cushion layer 56, valve well 6, three-oil and two-felt 61, cement mortar 62, fiberglass cover plate 63, earthwork 7.

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0025] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0028] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0030] The working principle of a weir is to build a barrier to prevent water from passing freely, thereby achieving functions such as controlling water flow and preventing floods. Its working principle may vary depending on the different types of weirs, but generally includes the following aspects: 1) Physical barrier: The structure of the weir itself physically blocks the passage of water flow, causing the water flow to be obstructed or change its direction, thereby achieving the purpose of controlling the water flow. 2) Adjusting the water level: By opening or closing the weir, the water level can be adjusted to achieve control of the water flow, thereby achieving the purpose of water storage or drainage. 3) Flow control: The weir can control the flow rate and adjust the water flow speed, reduce the impact of the water flow on the surrounding environment, and protect the ecological environment and land resources.

[0031] In general, the weir achieves precise control and regulation of water flow through a reasonable combination of structural design, material selection and control methods, plays an important role in water conservancy, and provides important guarantees for people's production and life and social development. The design and operation of the weir needs to consider many factors such as the surrounding environment and engineering requirements to ensure that it can function safely and reliably.

[0032] Although weirs play an important role in water conservancy projects, there are also some disadvantages and challenges, including technical, environmental and social issues. The following are some of the disadvantages of existing weirs: High cost: The construction, maintenance and management of weirs require a lot of capital investment, especially for large-scale water conservancy projects, the cost is often high. This may limit the popularity and application scope of weirs. Impact on the ecological environment: The construction and operation of weirs may have a negative impact on the surrounding ecological environment, including the destruction of water ecosystems and the reduction of biodiversity. Water storage and changes in water flow paths may also lead to wetland degradation and loss of aquatic habitats.

[0033] Difficulty in maintenance: The weirs need regular maintenance and cleaning, but the maintenance work of some large weirs is complicated and tedious, requiring a lot of manpower and material resources, and the maintenance difficulty is relatively high. Leakage problem: Some weirs have leakage problems, especially after long-term operation, the weir body may leak, the seepage volume may increase, etc., affecting the stability and effect of the weir body. Water quality problem: In some weirs, due to the long water storage time or water stagnation, water quality problems such as eutrophication and excessive growth of algae may occur, affecting the water quality and environmental health. Geological disaster risk: Some weirs are built in areas prone to geological disasters, and there is a certain risk of geological disasters, such as earthquakes, landslides, collapses, etc., which require strengthened risk assessment and monitoring. In order to solve these problems, it is necessary to take a series of effective measures in the design, construction and operation of the weir.

[0034] like Figure 1-6 As shown, an embodiment of the present application provides a river ecological water retaining weir structure, which can alleviate the leakage problem and water quality problem of the water retaining weir to a certain extent, and specifically includes a concrete slope protection 1, a water retaining dam 3, an energy dissipation pool 4, an anti-scouring trough and a water intake component 5. Among them, the concrete slope protection 1 is arranged on the opposite sides of the river channel 2, and the concrete slope protection 1 has a preset length along the extension direction of the river channel 2; the water retaining dam 3 is arranged between the two opposite concrete slope protections 1, and the water retaining dam 3 has a water-facing side 31 and a water-receiving side 32, the water-facing side 31 is perpendicular to the cross-section of the river channel 2, and the water-receiving side 32 is a slope surface; the energy dissipation pool 4 and the anti-scouring trough are arranged in sequence on the downstream side of the water retaining dam 3; the water intake component 5 includes a water intake pipe 51 and a water inlet pool 52, the water inlet pool 52 is located on the other side of the slope position of the water retaining dam 3, one end of the water intake pipe 51 is connected to the lower position of the water-facing side 31, and the other end extends to the water inlet pool 52 and is connected to the water inlet pool 52; the water in the water inlet pool 52 can be used for drinking water or irrigation water.

[0035] In this embodiment, the concrete slope protection 1 is a C20 concrete slope protection, which is arranged with a C20 concrete foot 11 downstream of the water retaining dam 3 and a C20 concrete cap 12 on the side close to the river bank; one end of the energy dissipation pool 4 is adjacent to the water retaining dam 3, and the other end is adjacent to the anti-scouring groove. The river ecological water retaining weir structure realizes the function of water storage through the water retaining weir, which can regulate the flow of river water, and obtains relatively clean water from the upstream of the water retaining weir for drinking water through the water intake component 5, which reduces a large amount of stagnation of water, thereby alleviating the leakage problem and water quality problem of the water retaining weir to a certain extent. During heavy rains, there is more water in the river channel 2, and the overflow overflows the water retaining dam 3 and enters the energy dissipation pool 4 in the water retaining weir, slowing down the impact of the water flow, and finally slowing down the water flow rate again through the anti-scouring groove to prevent the water flow from scouring the bottom of the riverbed.

[0036] like Figure 1-4As shown, in a specific embodiment, stone stepping stones are arranged at preset intervals on the top of the water retaining dam 3 to facilitate the passage of maintenance personnel or pedestrians. The overall structure of the water retaining dam 3 adopts C20 buried stone concrete, and the slope of the slope surface of the backwater side 32 is 1:1.3~1:1.6; the surface of the backwater side 32 is paved with a layer of C25 concrete cast goose soft stone, and the laying thickness of the C25 concrete cast goose soft stone is 20~40cm.

[0037] like Figure 1-4 As shown, in a specific embodiment, the energy dissipation pool 4 is provided with a plane foundation 41, the plane foundation 41 adopts C20 buried stone concrete, and the upper surface of the plane foundation 41 is provided with a plurality of concrete stones; the bottom of the anti-scour groove is provided with gravel to compact the bottom of the riverbed, and the upper part of the anti-scour groove is provided with a plurality of riprap to mitigate hydraulic impact.

[0038] like Figure 5 As shown, in a specific embodiment, the whole body 54 of the water inlet pool 52 is an inverted trapezoidal structure, and the side of the whole body 54 is provided with a slope with a slope of 1:1 and backfilled with earthwork 7; the top of the water inlet pool 52 is provided with a C25 reinforced concrete cover plate 55, and the bottom of the water inlet pool 52 is provided with a C15 concrete cushion layer 56. In addition, the water inlet pool 52 is a square concrete body structure, and pebbles and quartz sand are provided on both sides of the concrete body structure; the pipe material of the water intake pipe 51 is ductile iron, and the end of the water intake pipe 51 is provided with a bell mouth.

[0039] like Figure 6 As shown, in a specific embodiment, a valve 53 is provided on the water intake pipe 51, and the valve 53 is arranged in the valve well 6; three oils and two felts 61 are provided at the connection between the water intake pipe 51 and the valve well 6 and sealed with cement mortar 62, and a fiberglass cover plate 63 is provided on the top of the valve well 6.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A river ecological weir structure, characterized in that: include: Concrete slope protection, the concrete slope protection is arranged on opposite sides of the river channel, and the concrete slope protection has a preset length along the extension direction of the river channel; A water retaining dam, the water retaining dam is arranged between the two opposite concrete slope protections, the water retaining dam has a water-facing side and a water-retaining side, the water-facing side is perpendicular to the cross section of the river channel, and the water-retaining side is a slope surface; An energy dissipation pool and an anti-scouring groove, wherein the energy dissipation pool and the anti-scouring groove are sequentially arranged on the downstream side of the water retaining dam; A water intake assembly, comprising a water intake pipe and a water inlet pool, wherein the water inlet pool is located on the other side of the slope of the water retaining dam, one end of the water intake pipe is connected to the lower position of the water-facing side, and the other end extends to and is connected to the water inlet pool.

2. The river ecological water retaining weir structure according to claim 1 is characterized in that: The top of the water retaining dam is provided with stone stepping stones at preset intervals. The overall structure of the water retaining dam adopts C20 buried stone concrete. The slope of the slope surface on the backwater side is 1:1.3 to 1:1.

6. The surface of the backwater side is paved with a layer of C25 concrete-cast goose soft stone, and the laying thickness of the C25 concrete-cast goose soft stone is 20 to 40 cm.

3. The river ecological water retaining weir structure according to claim 1 or 2, characterized in that: The water intake pipeline is provided with a valve, and the valve is arranged in a valve well; the connection between the water intake pipeline and the valve well is provided with three oils and two felts and sealed with cement mortar, and a fiberglass cover is arranged on the top of the valve well.

4. The river ecological water retaining weir structure according to claim 3 is characterized in that: The energy dissipation pool is provided with a plane foundation, the plane foundation adopts C20 buried stone concrete, and the upper surface of the plane foundation is provided with a plurality of concrete stones; the bottom of the anti-scour groove is provided with gravel to compact the bottom of the riverbed, and the upper part of the anti-scour groove is provided with a plurality of ripraps.

5. The river ecological water retaining weir structure according to claim 1, 2 or 4, characterized in that: The overall body of the water inlet pool is an inverted trapezoidal structure, and the side of the overall body is provided with a slope with a slope of 1:1 and backfilled with earth; the top of the water inlet pool is provided with a C25 reinforced concrete cover plate, and the bottom of the water inlet pool is provided with a C15 concrete cushion layer.

6. The river ecological water retaining weir structure according to claim 5 is characterized in that: The water inlet pool is a square concrete structure, and pebbles and quartz sand are arranged on both sides of the concrete structure respectively; the pipe material of the water intake pipe is ductile iron, and a bell mouth is arranged at the end of the water intake pipe.

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