Ecological diversion retaining dam

Abstract

The utility model relates to the technical field of water conservancy projects, in particular to an ecological diversion retaining dam which comprises a dam body, the two sides of the dam body are of slope structures, the side, making contact with the water surface, of the dam body is arranged to be an upstream slope, and the other side of the dam body is arranged to be a downstream slope. The concrete base, the ecological filtering layer and the dam-passing stone step are sequentially arranged in an overlapped mode, a plurality of drainage pipelines are arranged in the ecological filtering layer, steel frame strips are arranged between the ecological filtering layer and the dam-passing stone step at equal intervals, an overflow channel is formed in a gap between every two adjacent steel frame strips, and the overflow channels communicate with the upstream slope and the downstream slope correspondingly; a water retaining gate is arranged above the overflow channel and attached to the downstream slope, and one end of the water retaining gate is movably connected with the dam body. According to the utility model, the garden environment is beautified, water can be shunted for use, the utilization rate of water can be effectively improved, and the downstream flood risk can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic engineering, especially relates to an ecological shunt dam. BACKGROUND

[0002] In the work of building artificial wetlands, improving river morphology and regulating water flow, structures such as dams are usually used to cross the river channel to raise the water level for river water storage, especially to ensure the ecological water quantity of the river in the dry season, so as to increase the wetland area and form a landscape. The dam is mostly a dry masonry stone slab rockfill dam, a concrete dam, etc.

[0003] However, the traditional hard concrete dam often lacks aesthetic appeal and is not friendly to the environment. Not only does it hinder the biological channel of aquatic plants and animals moving upstream and downstream, but it also easily causes water eutrophication in some rivers and wetlands with small water flow, thereby affecting the aesthetics of the landscape. In addition, the long-term closed dam can also cause excessive water pressure on both sides of the dam during the rainy season, and when the water level is too high, it can easily cause downstream flooding and other problems. SUMMARY

[0004] To solve the technical defects proposed in the background art, the purpose of the utility model is to provide an ecological shunt dam that can not only beautify the landscape environment but also effectively improve the utilization of water bodies and reduce the risk of flooding downstream.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ecological shunt dam, comprising a dam body, the two sides of the dam body are inclined slope structures, and the side of the dam body in contact with the water surface is set as a water-facing slope, and the other side is set as a water-back slope, the dam body comprises a concrete base, an ecological filter layer and a dam crossing step, the concrete base, the ecological filter layer and the dam crossing step are sequentially stacked, a plurality of drainage pipes are arranged in the ecological filter layer, and steel bars are arranged equidistantly between the ecological filter layer and the dam crossing step, a spillway channel is formed between adjacent two steel bars, and the spillway channel is connected with the water-facing slope and the water-back slope respectively; a water blocking gate is arranged above the spillway channel to block the flow of water, the water blocking gate is arranged on the water-back slope, and one end of the water blocking gate is movably connected with the dam body.

[0007] Preferably, the water retaining gate comprises a fixed frame, a telescopic baffle and adjustable support rods, the fixed frame is arranged in a straight line with the dam step, and one end of the fixed frame is hingedly connected with the telescopic baffle; the telescopic baffle is composed of two stacked water retaining plates, the two sides of the two water retaining plates are hingedly connected through hinges, and a plurality of clamping grooves are arranged on the back side of the telescopic baffle, the clamping grooves are in a hook-shaped structure, and the clamping grooves are clamped with the adjustable support rods; the adjustable support rods are provided in plurality, the plurality of adjustable support rods are equidistantly connected between the fixed frame and the baffle, and one end of the adjustable support rod is fixed on the fixed frame through a fastening screw, and the other end is clamped in the clamping groove.

[0008] Preferably, the top end of the fixed frame is paved with a plurality of ecological bags, the ecological bags are paved with geogrids, the adjacent ecological bags are connected through connecting buckles, and the ecological bags contain soil and grass seeds.

[0009] Preferably, the fixed frame and the telescopic baffle are formed at a certain angle through the adjustable support rods, and the opening and closing angle of the angle is 0°-60°.

[0010] Preferably, the diameters of the plurality of drainage pipes are different, and the drainage pipes are arranged in an inclined manner, wherein the water inlet of the drainage pipe with a larger diameter is arranged at the top end of the water slope, and the water inlet of the drainage pipe with a smaller diameter is arranged at the bottom end of the water slope.

[0011] Preferably, the concrete base is fixed on the riverbed, and the width of the concrete base gradually decreases from bottom to top to form a trapezoidal structure.

[0012] Preferably, the ecological filter layer comprises water permeable stone blocks, ceramic particle layers, pebbles and gravel layers which are backfilled in sequence along the water slope to the direction away from the water, the water permeable stone blocks, ceramic particle layers, pebbles and gravel layers are separated by geotextiles, and the gaps between the water permeable stone blocks, ceramic particle layers, pebbles and gravel layers are filled with irrigation concrete.

[0013] Preferably, the dam step is paved on the ecological filter layer, and the dam step is composed of a plurality of pedestrian strip stone piers which are paved on steel frame strips, and guardrails are arranged on both side edges of the dam step.

[0014] In summary, the beneficial effects of the present application are:

[0015] 1.The utility model discloses a preburied drainage pipeline in the dam, which can connect the water sources on both sides of the water-facing slope and the water-backing slope, realize mutual communication, and enable aquatic animals to move through the drainage pipeline, thereby expanding the diversity of biological population; in order to ensure the water volume of the river, a water-blocking gate is arranged on one side of the water-backing slope, which can be opened or closed according to the water level, thereby realizing river water storage or multi-stage flood discharge, maintaining a moderate water surface of the river, allowing citizens to get close to nature, and avoiding the occurrence of flood disasters.

[0016] 2.In terms of beautifying the environment, the ecological filter layer can filter the floating and sinking of the water flow through the dam body, realize physical purification to reduce the risk of water body eutrophication, realize biological purification, reduce the influence of impurity accumulation on the permeability of the dam body and the landscape effect, thereby creating a quiet and pleasant garden landscape, and facilitating the construction of a biological corridor to attract more tourists. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the ecological shunt dam of the utility model;

[0018] Figure 2 is a top view of the ecological shunt dam of the utility model;

[0019] Figure 3 is a structural schematic view of the ecological filter layer in the utility model;

[0020] Figure 4 is a structural schematic view of the water-blocking gate in the utility model;

[0021] Figure 5 is a structural schematic view of the extension baffle in the utility model.

[0022] 1, dam body; 11, water-facing slope; 12, water-backing slope; 2, concrete base; 3, ecological filter layer; 31, permeable stone block; 32, ceramsite layer; 33, pebble; 34, gravel layer; 4, dam crossing step; 41, pedestrian strip stone step pier; 42, guardrail; 5, drainage pipeline; 6, steel frame strip; 61, overflow channel; 7, water-blocking gate; 71, fixed frame; 72, extension baffle; 721, hinge; 722, clamping groove; 73, adjustable support rod; 8, ecological bag; 9, geogrid. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0024] Those skilled in the art should understand that, in the disclosure of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0025] In addition, the terms "mounting", "setting", "provided with", "connection", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the description of the present application, if there are words such as "several", the meaning is one or more, the meaning of more than two, greater than, less than, more than, etc. is not included in the number, above, below, within, etc. is understood to include the number. If the first, second, third is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0027] The following will be described in detail with reference to the drawings of the embodiments of the present application. Figures 1-5 The embodiments of the ecological diversion dam will be further described in detail.

[0028] An ecological diversion dam, such as Figures 1 to 3As shown, the dam body 1 is provided with a slope structure on both sides, and the side of the dam body 1 in contact with the water surface is provided with a water-facing slope 11, and the other side is provided with a water-back slope 12. The dam body 1 comprises a concrete base 2, an ecological filter layer 3 and a dam step 4. The concrete base 2, the ecological filter layer 3 and the dam step 4 are sequentially stacked. A plurality of drainage pipes 5 are arranged in the ecological filter layer 3. Steel bars 6 are arranged equidistantly between the ecological filter layer 3 and the dam step 4. A gap between two adjacent steel bars 6 forms an overflow channel 61. The overflow channel 61 is connected with the water-facing slope 11 and the water-back slope 12 respectively. A water-blocking gate 7 is arranged above the overflow channel 61 to block the flow of water. The water-blocking gate 7 is arranged in close contact with the water-back slope 12. One end of the water-blocking gate 7 is movably connected with the dam body 1.

[0029] Specifically, in use, the flow rates of the water flow discharged by the drainage pipes 5 at different positions are different. The drainage pipes 5 can connect the water sources on both sides of the water-facing slope 11 and the water-back slope 12, so that the water sources can be interconnected, and aquatic animals can move through the drainage pipes 5, thereby expanding the diversity of biological populations. In the dry season, in order to ensure the water quantity of the river, the water-blocking gate 7 is lowered to close the water outlets of the drainage pipes 5 and the overflow channel 61, so as to raise the water level of the water source on the side of the water-facing slope 11 and store water in the river, thereby maintaining a moderate water surface of the lake for citizens to get close to nature. In the rainy season, when the water flow on the side of the water-facing slope 11 is large, the water-blocking gate 7 can be recovered to open the overflow channel 61, so that the water can be discharged through the drainage pipes 5 and the overflow channel 61 at the same time, thereby realizing multi-stage flow distribution according to the height of the water level, so as to avoid all water flowing to the downstream and causing flood disasters.

[0030] In this embodiment, as shown in Figure 4 , 5 The water-blocking gate 7 comprises a fixed frame 71, a telescopic baffle 72 and adjustable supporting rods 73. The fixed frame 71 is arranged on the same line as the dam step 4. One end of the fixed frame 71 is hingedly connected with the telescopic baffle 72. The telescopic baffle 72 comprises two stacked water baffles. The two water baffles are hingedly connected by hinges 721. A plurality of clamping grooves 722 are arranged on the back side of the telescopic baffle 72. The clamping grooves 722 are hook-shaped structures. The clamping grooves 722 are clamped with the adjustable supporting rods 73. The adjustable supporting rods 73 are arranged in multiple. The multiple adjustable supporting rods 73 are equidistantly connected between the fixed frame 71 and the baffle. One end of the adjustable supporting rods 73 is fixed on the fixed frame 71 by a fastening screw. The other end of the adjustable supporting rods 73 is clamped in the clamping grooves 722.

[0031] Specifically, the fixed frame 71 is made of alloy steel material, and the fixed frame 71 is fixed on the dam 4, so that the fixed frame 71 can play a role in stabilizing the telescopic baffle 72. When storing water, the telescopic baffle 72 slowly falls under the action of the adjustable support rod 73 until it is attached to the backwater slope 12, and the end of the adjustable support rod 73 is attached to the telescopic baffle 72. At this time, the telescopic baffle 72 blocks the water outlet of the overflow channel 61. In order to further intercept the water flow and raise the water level, the telescopic baffle 72 will be unfolded from the folded state. At this time, the water baffle connected with the fixed frame 71 remains stationary, and the other water baffle starts to slide downward under the action of the hinge 721 until it is in the same straight line position as the previous water baffle. The unfolded telescopic baffle 72 can be equal to the length of the backwater slope 12, that is, it can cover and block the water outlet of the drainage pipeline 5, thereby achieving the purpose of closing all water outlets, which is beneficial to the water flow storage on the side of the water slope 11. When the water flow needs to be discharged in stages, the telescopic baffle 72 is first recovered, and the area blocked by the telescopic baffle 72 is adjusted according to the required flow. When the flow demand is not high, the telescopic baffle 72 only needs to be recovered to the folded state, and at this time the water flow can be discharged through the drainage pipeline 5. When the water level is too high and needs to be discharged, the telescopic baffle 72 is folded and closed on the fixed frame 71, so that the drainage pipeline 5 and the overflow channel 61 are simultaneously discharged.

[0032] It is worth noting that the water gate 7 in the utility model is connected with an intelligent control system, the intelligent control system adopts Internet of Things technology, links the underground water level sensor with the remote control system, so that it can adjust the opening and closing of the water gate 7 in real time, thereby intelligently distributing the water flow according to the real-time rainfall and the demand of the upstream and downstream, to guarantee the water quantity of the river and maintain the ecological balance. When a rainstorm hits, the intelligent control system starts, the water level detection system detects the rising water level and triggers the valve to open, the water gate 7 automatically retracts, and the drainage pipeline 5 and the overflow channel 61 are simultaneously opened to quickly discharge the flood. When the upstream water level is exhausted, the water gate 7 is automatically controlled to fall and close the drainage pipeline 5 and the overflow pipeline, thereby maintaining the ecological balance.

[0033] In order to further beautify the landscape of the water retaining dam, a plurality of ecological bags 8 are laid on the top end of the fixed frame 71, a geogrid 9 is laid between the ecological bags 8, adjacent ecological bags 8 are connected through connecting buckles, and the ecological bags 8 contain soil and grass seeds. The ecological bag 8 can effectively prevent soil from falling into the water source, and also provides nutrients for grass or flower seeds.

[0034] In the embodiment, the fixed frame 71 and the telescopic baffle 72 are connected by the adjustable support rod 73 to form an included angle with a certain angle, and the opening and closing angle of the included angle is 0°-60°.

[0035] Specifically, since both sides of the water retaining dam are slope structures, and the slope of the water retaining dam is generally not more than 60°, in order to make the telescopic baffle 72 better fit the slope of the water retaining dam, the telescopic baffle 72 is hinged to one end of the fixed frame 71, and in the process of opening the telescopic baffle 72, the opening angle of the telescopic baffle 72 is adjusted by the adjustable supporting rod 73, so that it can coincide with the side slope of the water retaining dam, thereby shielding the overflow channel 61 and the drainage pipeline 5, so as to realize the water storage function. The fixed frame 71, the telescopic baffle 72 and the adjustable supporting rod 73 are arranged in a triangular shape, which can improve the stability of the water retaining dam when retaining water, and avoid water flow from moving the telescopic baffle 72 too much.

[0036] In the embodiment, the diameters of the plurality of drainage pipelines 5 are different, and the drainage pipelines 5 are arranged obliquely, wherein the water inlet of the drainage pipeline 5 with a larger diameter is arranged at the top end of the water-facing slope 11, and the water inlet of the drainage pipeline 5 with a smaller diameter is arranged at the bottom end of the water-facing slope 11.

[0037] Specifically, the purpose of arranging the drainage pipelines 5 with different diameters is to better classify the flow according to the water level. When the water level on one side of the water-facing slope 11 is low, the water flow cannot pass through the drainage pipeline 5 with a larger diameter, and can only be discharged through the drainage pipeline 5 with a smaller diameter, so as to maintain the storage of the upstream water source, and also facilitate the movement and interaction of aquatic animal populations through the drainage pipeline 5. When a large amount of water needs to be discharged, all the drainage pipelines 5 are used to speed up the drainage to meet the water demand for irrigation and the like.

[0038] In the embodiment, the concrete base 2 is fixed on the riverbed, and the width of the concrete base 2 gradually decreases from bottom to top to form a trapezoidal structure. The concrete base 2 poured with concrete can be firmly erected on the riverbed to provide a stable foundation and support force for the water retaining dam. The trapezoidal structure of the concrete base 2 can disperse the scouring of the water flow and improve the service life of the water retaining dam. The ecological filter layer 3 includes, in order from the water-facing slope 11 to the water-breaking slope, permeable stone blocks 31, a ceramsite layer 32, pebbles 33 and a gravel layer 34. The permeable stone blocks 31, the ceramsite layer 32, the pebbles 33 and the gravel layer 34 are separated by geotextile, and the gaps between the permeable stone blocks 31, the ceramsite layer 32, the pebbles 33 and the gravel layer 34 are filled with concrete. The permeable stone blocks 31 can facilitate the flow of water and improve water quality after layer-by-layer filtration and purification by the ceramsite layer 32, the pebbles 33 and the gravel layer 34, thereby beautifying the landscape and attracting more tourists to visit.

[0039] It is worth mentioning that the dam crossing step 4 is paved on the ecological filter layer 3, and the dam crossing step 4 is composed of a plurality of pedestrian stone step piers 41 paved on the steel frame strip 6, and the dam crossing step 4 is provided with a guardrail 42 on both side edges. By arranging the dam crossing step 4 on the ecological filter layer 3, it is convenient for citizens to visit and observe, and meanwhile, the traffic connection on both sides of the river can be facilitated, and meanwhile, the plants planted in the ecological bag 8 can play a filtering effect on the water flow, so that the discharged water flow can be purified.

[0040] The working principle of the utility model is as follows:

[0041] In the construction of the water retaining dam, first, the concrete base 2 is poured, then the ecological filter layer 3 is built on the top of the concrete base 2, and after the water retaining gate 7 is installed on the ecological filter layer 3, the dam crossing step 4 for pedestrians is paved, and finally, after the guardrail 42 is installed on both sides of the dam crossing step 4, the ecological bag 8 filled with local soil is stacked above the water retaining gate 7, the steel plastic geogrid 9 is paved between the ecological bags 8, the upper and lower two layers of ecological bags 8 are buckled by using the professional ecological bag 8 connecting buckle, and finally, the earthwork is backfilled to complete the construction of the water retaining dam; wherein, when the ecological filter layer 3 is constructed, the drainage pipes 5 with different diameters are pre-buried, and the drainage pipes 5 are placed obliquely, and the steel frame strip 6 is pre-buried between the ecological filter layer 3 and the dam crossing step 4, so that the automatic overflow and flood discharge can be realized when the water level is too high.

[0042] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An ecological diversion dam, comprising a dam body, wherein both sides of the dam body are sloping structures, and the side of the dam body in contact with the water surface is designated as the upstream slope and the other side as the downstream slope, characterized in that, The dam body comprises a concrete base, an ecological filter layer, and stepping stones. The concrete base, ecological filter layer, and stepping stones are stacked sequentially. The ecological filter layer contains multiple drainage pipes, and steel frame bars are equidistantly arranged between the ecological filter layer and the stepping stones. The gap between two adjacent steel frame bars forms an overflow channel, which connects the upstream slope and the downstream slope. A water-blocking gate is installed above the overflow channel to block the flow of water. The water-blocking gate is fitted to the downstream slope, and one end of the water-blocking gate is movably connected to the dam body.

2. The ecological diversion dam according to claim 1, characterized in that, The water-retaining gate includes a fixed frame, a telescopic baffle, and adjustable support rods. The fixed frame is located on the same straight line as the stepping stones over the dam, and one end of the fixed frame is hinged to the telescopic baffle. The telescopic baffle consists of two stacked water-retaining plates, which are hinged to each other on both sides. Multiple slots are provided on the back side of the telescopic baffle. The slots are hook-shaped and engage with the adjustable support rods. Multiple adjustable support rods are provided, which are equidistantly connected between the fixed frame and the baffle. One end of each adjustable support rod is fixed to the fixed frame with a fastening screw, and the other end is engaged in the slot.

3. The ecological diversion dam according to claim 2, characterized in that, The top of the fixed frame is covered with several ecological bags, and geogrids are laid between the ecological bags. Adjacent ecological bags are connected by connecting buckles, and the ecological bags contain soil and grass seeds.

4. The ecological diversion dam according to claim 2, characterized in that, The fixed frame and the telescopic baffle are connected by an adjustable support rod at a certain angle, the opening and closing angle of which is 0°-60°.

5. The ecological diversion dam according to claim 1, characterized in that, The drainage pipes have different diameters and are installed at an angle. The inlet of the larger diameter drainage pipe is located at the top of the slope facing the water, while the inlet of the smaller diameter drainage pipe is located at the bottom of the slope facing the water.

6. The ecological diversion dam according to claim 1, characterized in that, The concrete base is fixed to the riverbed, and the width of the concrete base gradually decreases from bottom to top to form a trapezoidal structure.

7. The ecological diversion dam according to claim 1, characterized in that, The ecological filter layer includes permeable stones, expanded clay, pebbles, and crushed stone layers that are backfilled sequentially along the water-facing slope towards the back slope. The permeable stones, expanded clay, pebbles, and crushed stone layers are separated by geotextile, and the gaps between the permeable stones, expanded clay, pebbles, and crushed stone layers are filled with irrigated concrete.

8. The ecological diversion dam according to claim 1, characterized in that, The stepping stones over the dam are laid on the ecological filter layer and consist of multiple pedestrian stone stepping stones laid on steel frame strips. Guardrails are installed on both sides of the stepping stones.

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