Anti-scouring ecological dam for water conservancy project

Abstract

The utility model discloses a water conservancy project anti-scour ecological dam which comprises an ecological dam body and an anti-scour mechanism, the anti-scour mechanism comprises a plurality of partition plates, and a polygonal building structure formed by stacking a plurality of regular hexagonal prism gabion nets is arranged on one side between any two adjacent partition plates. A plurality of mounting holes are formed in one side of each partition plate, and a riprap filling layer is arranged in an enclosure structure formed by the multiple polygonal building structures matched with the two adjacent partition plates and the slope toe of the ecological dam body. According to the anti-scouring ecological dam for the water conservancy project, the regular hexagonal prism gabion net is used for replacing an existing gabion net for construction of a protective barrier, a multilateral construction structure can be built, a scoured face of a polyhedral structure can be formed, the bearing area is increased, and by cooperation with side face supporting of the partition plates and rear supporting of the riprap filling layer, the anti-scouring ecological dam is more stable in performance. The stability of the protection structure is effectively improved, and the collapse probability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to an anti-scouring ecological dam for water conservancy projects. Background Art

[0002] Foot protection projects play an indispensable role in the scouring resistance of dams. Foot protection projects directly slow down the scouring effect of water flow on the foot of the dam by setting up protective structures such as riprap, sinker pillows, concrete blocks, etc. in the foot area of ​​the dam where water flow scouring is more serious. These protective structures can consume the energy of the water flow, reduce the water flow speed, and thus reduce the scouring force. Foot protection projects can not only directly protect the foot of the dam from the impact of water flow scouring, but also enhance the overall stability and flood control capacity of the dam. The more common foot protection projects of dams currently include: (1) Riprap method: By throwing stones and other materials, an obstacle is formed in the water flow to slow down the water flow speed and achieve the purpose of protecting the foot of the dam. This method is simple to construct and has low cost, but the thrown stones need to have sufficient strength and stability to withstand the impact of water flow; (2) Sinking sleeper method: Use sleepers filled with stones to protect the embankment foot. This method is simple to construct, but the stability and durability of the sleepers are poor; (3) Concrete block method: Use prefabricated concrete blocks to protect the embankment foot. This method has the advantages of simple structure and convenient construction, but the construction cost is relatively high; (4) Gabion stone cage method: Use stone cages made of metal mesh and fill them with stones to form a protective structure. This method has the advantages of good durability and convenient construction, and is suitable for long-term protection of the embankment foot.

[0003] The above-mentioned existing technologies all have different defects: although the riprap method and the sinking pillow method are simple to construct, they are mostly suitable for short-term protection projects, and the concrete block method has a high construction cost. Therefore, the current foot protection projects mostly use the gabion stone cage method, and the current gabion stone cage mesh is usually a square structure. When constructing a protective barrier, the scour surface is mostly a plane structure with a relatively weak bearing capacity and is prone to collapse. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical problems existing in the dam foot protection of the prior art, and provides an anti-scour ecological dam for a water conservancy project, which solves the problem that the existing gabion stone cage net is usually a square structure, and when constructing a protective barrier, the scour surface is mostly a plane structure, the bearing capacity is relatively weak, and it is easy to collapse.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the utility model is an anti-scour ecological dam of a water conservancy project, including an ecological dam body and an anti-scour mechanism constructed at the foot of the slope of the ecological dam body, the anti-scour mechanism includes a plurality of partitions which are parallel to each other and perpendicular to the vertical surface of the foot of the slope of the ecological dam body, and a polygonal construction structure composed of a plurality of regular hexagonal prism gabions are arranged on the side away from the main body of the ecological dam between any two adjacent partitions, a plurality of mounting holes for side tying of the polygonal construction structure are opened on the side away from the main body of the ecological dam, and a riprap filling layer is provided in the enclosed structure formed by the two adjacent partitions and the foot of the slope of the main body of the ecological dam.

[0006] Preferably, the main body of the ecological dam includes a concrete wave-blocking wall and a mortar-laid stone foot guard respectively constructed on the slope of the dam body at the upper and lower parts of the dam body, and an ecological slope protection in a stepped distribution is built between the concrete wave-blocking wall and the mortar-laid stone foot guard and on the slope of the main body of the ecological dam. The ecological slope protection is built by three-dimensional drainage coupling buckles and ecological bags. Specifically, with the normal water level as the dividing line, vegetation can be sown in the ecological bag above the normal water level, and aquatic plants can be sown in the ecological bag below the normal water level.

[0007] Preferably, the polygonal construction structure is formed by stacking a plurality of regular hexagonal gabions in a vertical direction to form a facade structure. One construction method of the polygonal construction structure is to stack a plurality of regular hexagonal gabions in a vertical direction to form an intermittent concave and convex facade of the polygonal structure.

[0008] Preferably, the polygonal construction structure is formed by stacking and splicing a number of regular hexagonal gabions extending in a direction away from the main body of the ecological dam and forming a slope structure. Another construction method of the polygonal construction structure is to stack and splice a number of regular hexagonal gabions in a step-down manner away from the main body of the ecological dam, and the scour surface formed is a conical concave-convex slope of the polygonal structure.

[0009] As a preferred method, it also includes a positioning rod for installing and reinforcing the regular hexagonal gabion mesh, and a bushing adapted to the positioning rod is vertically penetrated in the middle of the regular hexagonal gabion mesh. Among them, by providing a positioning rod that vertically penetrates through a plurality of stacked regular hexagonal gabions, and inserting the top of the positioning rod into the riverbed, the stacking of the regular hexagonal gabions can be further ensured to be secure and stable.

[0010] Therefore, the utility model has the following beneficial effects: by replacing the current gabion gabion mesh with regular hexagonal prism gabion mesh to construct a protective barrier, a polygonal construction structure can be built to form a multi-faceted scour surface, which increases the bearing area compared to the current planar scour surface. At the same time, with the side support of the partition and the rear support of the riprap filling layer, the stability of the protective structure is effectively improved and the probability of collapse is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0012] Figure 2 It is a structural schematic diagram of the anti-scour mechanism of the utility model.

[0013] Figure 3 The utility model is a structural schematic diagram of a multilateral construction structure.

[0014] Figure 4 It is a structural schematic diagram of the partition of the utility model.

[0015] Figure 5 The utility model is a structural schematic diagram of a multilateral construction structure.

[0016] Figure 6 It is a structural schematic diagram of the positioning rod of the utility model.

[0017] Figure 7 It is a structural schematic diagram of the main body of the ecological dam of the utility model.

[0018] In the figure: 100, main body of ecological dam; 110, weir body; 120, concrete wave retaining wall; 130, mortar-laid stone footing; 140, ecological slope protection; 200, anti-scour mechanism; 210, partition; 220, multilateral construction structure; 230, riprap filling layer; 2110, installation hole; 2210, regular hexagonal prism gabion mesh; 2211, bushing; 300, positioning rod. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] See also Figure 1-7The utility model provides a technical solution: an anti-scour ecological dam of a water conservancy project, comprising an ecological dam body 100 and an anti-scour mechanism 200 constructed at the foot of the slope of the ecological dam body 100, the anti-scour mechanism 200 comprising a plurality of partitions 210 which are parallel to each other and perpendicular to the vertical surface of the foot of the slope of the ecological dam body 100, and a polygonal construction structure 220 formed by stacking a plurality of regular hexagonal prism gabion nets 2210 is arranged on the side away from the ecological dam body 100 between any two adjacent partitions 210, a plurality of mounting holes 2110 for side tying of the polygonal construction structure 220 are opened on the side away from the ecological dam body 100, and a riprap filling layer 230 is arranged in the enclosed structure formed by the plurality of polygonal construction structures 220 in cooperation with the two adjacent partitions 210 and the foot of the slope of the ecological dam body 100.

[0021] Based on the above-mentioned structural setting, the anti-scour ecological dam of the water conservancy project is composed of an ecological dam body 100 and an anti-scour mechanism 200, wherein the anti-scour mechanism 200 is built at the slope foot of the ecological dam body 100 for protecting the slope foot of the ecological dam body 100. Specifically, during the construction process, the partition 210 is first erected. The partition 210 can be fixed at the slope foot of the ecological dam body 100 in a variety of ways, such as using an anchor rod to extend to the slope foot of the ecological dam body 100. For example, a column foot node extending outward is embedded in the foot protection component of the main body 100 of the ecological dam, and the partition 210 can be assembled on the foot protection component by bolt connection or welding, and then the multilateral construction structure 220 is constructed. The multilateral construction structure 220 is composed of a plurality of regular hexagonal prism gabion nets 2210 stacked together, and any two adjacent regular hexagonal prism gabion nets 2210 are connected by binding with a plurality of steel wires, and the sides of the regular hexagonal prism gabion nets 2210 located on the side can be connected by steel wires. The mounting hole 2110 is tied and connected with the partition 210. At this time, any two adjacent partitions 210 cooperate with the multilateral construction structure 220 to enclose the front side of the slope foot of the ecological dam body 100 to form a cavity structure. Finally, stones are thrown into the cavity structure to fill the cavity to form a riprap filling layer 230. The riprap filling layer 230 cooperates with the multilateral construction structure 220 to form a double-layer anti-scour system. At the same time, the riprap filling layer 230 forms a double-layer anti-scour system behind the multilateral construction structure 220. The effective support of the construction structure 220, the anti-scour ecological dam of the water conservancy project, can build a polygonal construction structure 220 by replacing the current gabion stone cage net with a regular hexagonal prism stone cage net 2210 to construct a protective barrier, and can form a multi-faceted scour surface. Compared with the current planar scour surface, the bearing area is increased. At the same time, with the side support of the partition 210 and the rear support of the riprap filling layer 230, the stability of the protective structure is effectively improved and the probability of collapse is reduced.

[0022] Furthermore, the ecological dam body 100 includes a dam body 110, a concrete wave-blocking wall 120 and a mortar-laid stone footing 130 respectively constructed on the slope of the dam body 110 in the upper and lower distributions, and an ecological slope protection 140 distributed in a stepped manner is built between the concrete wave-blocking wall 120 and the mortar-laid stone footing 130 and on the slope of the ecological dam body 100.

[0023] Furthermore, the polygonal construction structure 220 is formed by stacking a number of regular hexagonal gabions 2210 in a vertical direction to form a facade structure.

[0024] Furthermore, the polygonal construction structure 220 is formed by a plurality of regular hexagonal gabions 2210 extending in a direction away from the main body 100 of the ecological dam and stacked and laid in a stepped structure to form a slope structure. Figure 5 As shown, in order to more clearly display the slope effect, the mesh surface of the regular hexagonal gabion mesh 2210 is replaced by a plane state.

[0025] Furthermore, it also includes a positioning rod 300 for installing and reinforcing the regular hexagonal prism gabion mesh 2210, and a bushing 2211 adapted to the positioning rod 300 is vertically penetrated through the middle of the regular hexagonal prism gabion mesh 2210.

[0026] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A water conservancy project anti-scour ecological dam, characterized in that: The invention comprises an ecological dam body (100) and an anti-scour mechanism (200) constructed at the foot of the ecological dam body (100); the anti-scour mechanism (200) comprises a plurality of partitions (210) which are parallel to each other and are erected perpendicular to the vertical surface of the foot of the ecological dam body (100); a polygonal construction structure (220) formed by stacking a plurality of regular hexagonal gabion nets (2210) is arranged on the side away from the ecological dam body (100) between any two adjacent partitions (210); a plurality of mounting holes (2110) for side-binding of the polygonal construction structure (220) are opened on the side away from the ecological dam body (100); and a riprap filling layer (230) is arranged in the enclosure structure formed by the plurality of polygonal construction structures (220) in cooperation with the two adjacent partitions (210) and the foot of the ecological dam body (100).

2. The anti-scour ecological dam of a water conservancy project according to claim 1 is characterized in that: The ecological dam body (100) comprises a dam body (110) and a concrete wave-blocking wall (120) and a mortar-laid stone footing (130) respectively constructed on the slope surface of the dam body (110) in upper and lower distributions; an ecological slope protection (140) in a stepped distribution is built between the concrete wave-blocking wall (120) and the mortar-laid stone footing (130) and on the slope surface of the ecological dam body (100).

3. The anti-scour ecological dam of a water conservancy project according to claim 1 is characterized in that: The polygonal construction structure (220) is formed by stacking a plurality of regular hexagonal gabions (2210) in a vertical direction to form a facade structure.

4. The anti-scour ecological dam of a water conservancy project according to claim 1 is characterized in that: The polygonal construction structure (220) is formed by a plurality of regular hexagonal gabion nets (2210) extending in a direction away from the ecological dam body (100) and being stacked and laid in a stepped structure to form a slope structure.

5. The anti-scour ecological dam of a water conservancy project according to claim 1 is characterized in that: It also includes a positioning rod (300) for installing and reinforcing the regular hexagonal gabion mesh (2210), and a bushing (2211) adapted to the positioning rod (300) is vertically penetrated through the middle of the regular hexagonal gabion mesh (2210).

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