CN217480066U - Ecological weir pool of multistage valley brook - Google Patents

Abstract

The utility model relates to a hydraulic engineering field, especially an ecological weir pool of multistage valley brook. Current hydraulic engineering lacks dykes and dams that narrow little brook channel was used in valley depressed place, and the brook channel can not impound and supply groundwater, for this reason the utility model provides an ecological weir pool of multistage valley brook channel, include and establish a plurality of weir dikes in the brook channel and separate into multistage weir pool from top to bottom with the brook channel, the weir dike includes top-down's weir crest, weir body and weir base, the weir crest is established and is made the migratory passageway with the through-hole of flowing water syntropy, and the weir body is faced rivers side and is the weir dike inboard, establishes the hole on the inboard weir body of weir dike and forms cave dwelling place, and the weir body is faced rivers side and is just domatic for the weir dike outside, and domatic top formation is less than the sleeveless shoulder of migratory passageway and supports the weir crest. Weir pool can impound and replenish groundwater environmental protection, the weir dyke provides the animal migration and the dual-purpose migratory passageway of drainage and the underwater cave dwelling space of animal, can also administer pests such as water pollution, prevent rice planthopper through planting aquatic plant.

Description

Ecological weir pool of multistage valley brook

Technical Field

The utility model relates to a hydraulic engineering field, especially an ecological weir pool of multistage valley brook.

Background

The barrage is a common water retaining dam in a river channel and a brook and is used for meeting the requirements of agricultural water lifting and irrigation. The width is in 1 ~ 4 meters narrow stream canal in current valley depressed place, generally does not set up the weir dam, and rivers run off directly when raining greatly can not hold water, can't satisfy terraced fields demand of lifting water and irrigating, also can not replenish groundwater environmental protection, and quick rivers still easily cause the harm to the bank on valley stream canal both sides simultaneously. The conventional weir dam matched with the stream river is generally poured by reinforced concrete, and the weir dam lacks an aquatic animal return passage, blocks the ecological circulation of the upstream and downstream of the stream channel and is not beneficial to the ecological environment protection of the stream channel. Some existing barrages close to natural ecology adopt river bank plants as buffering, and have dam structures such as a main barrage body, a filling body, micro aeration, an ecological floating island, an anti-scouring pit and the like, wherein a plant buffering zone is suitable for a wide beach bank and a river bank, the ecological floating island is suitable for a gentle canal and a pond, but the barrages are not suitable for narrow brooks with the width of 1-4 meters in valley docks. Furthermore, the water in the stream channel is affected by fertilizers after being used for terrace irrigation, so that part of heavy metal pollutants and nitrogen and phosphorus pollutants can be generated, and the stream channel water directly flows downwards without treatment and can pollute the environment.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves and the technical task who provides do not have the suitable dykes and dams that width 1 ~ 4 meters narrow small brook channels used in the suitable mountain valley depressed place to current hydraulic engineering, cause the brook channel can not the retaining and supply technical problem such as groundwater, environmental protection, the utility model provides an ecological weir pool of multistage mountain valley small brook channel, ecological weir pool is separated along the brook channel flow direction top-down by a plurality of dykes and dams with the structure and forms, and every grade of weir pool all can be impounded, is convenient for supply groundwater environmental protection, and weir pool retaining can flow into fast rather than adjacent low-grade weir pool under the heavy rain condition, forms the underwater cave space that lives the activity on every grade of pool of supplying water in addition. In addition, ecological weir pool still has the function of administering agricultural pollution, and each grade of weir pool can both absorb degradation a part of nitrogen phosphorus pollutant and heavy metal pollutant through planting the plant to can prevent pests such as rice planthopper, mosquito.

The utility model provides a technical scheme that technical problem adopted: the utility model provides an ecological weir pool of multistage mountain valley brook channel, is including establishing the weir dam in the brook channel, weir dam both ends and brook channel bank butt joint, and the weir dam forms the weir pool that can impound with the brook channel interception, characterized by the brook channel sets up a plurality of with the structure's weir dam along rivers top-down, and the weir dam separates the brook channel and forms top-down's multistage weir pool, the weir dam includes the weir crest on upper portion and the weir body at middle part and the weir base of bottom, and the weir crest is equipped with and forms the migratory channel with the syntropy through-hole of brook channel flowing water formation, and the weir body is met one side of brook channel rivers for the weir dam inboard, sets up the hole on the weir body at weir dam inboard place and forms cave dwelling, and the body is dorsad for the weir dam outside and for domatic one side, and domatic top formation is less than the shoulder of migratory channel and supports the weir crest together. The utility model discloses a set up a plurality of weir dams interception along the brook channel flowing water way to form top-down multistage weir pool control brook channel flowing water from this, each grade weir pool can all impound and delay brook channel underwater velocity when heavy rain, satisfy terraced fields water lift irrigation and infiltration replenishment groundwater's needs, the water that rises in this grade weir pool can flow into subordinate weir pool through the through-hole of weir crest during heavy rain, thereby automatically regulated the impoundment depth of this grade weir pool, the through-hole of weir crest can also be regarded as the return flow passageway of aquatic animal route, make things convenient for the aquatic animal to freely come and go between multistage weir pool, protect the ecological environment in the district that each grade pool is located, the hole on the weir body that weir dam bank inboard is located forms cave dwelling position, provide activity and living space for the aquatic animal; the weir dam outside is domatic so that the gentle flow direction of water in the weir pool is low level weir pool, and domatic top forms the sleeveless jacket simultaneously and supports the weir top and consolidate it, and the sleeveless jacket is less than the migratory passageway and can not influence weir pool drainage downwards.

As further improvement and supplement to the above technical scheme, the utility model discloses a following technical measure: the weir body surface at the inboard place of weir dyke forms from high to low continuous ladder, the fixed concrete brick of step sizing on the ladder, and the concrete brick piles up and forms continuous step, sets up the brick hole on the concrete brick and forms cave dwelling place. The weir body on the inner side of the weir dike is designed into a continuous step shape so as to be convenient for stacking concrete bricks, and all the concrete bricks are grouted and fixed to form continuous steps so as to deal with the water storage pressure of the weir pool and the water flow impact caused by flowing water; the brick holes on the surface of the concrete brick can be used as the movable acupuncture points of animals.

The plane depth b of the step is 90-100 mm, and the vertical surface height c is 160-200 mm. Step plane degree of depth b and facade height c inboard of weir dike are established respectively at suitable interval scope to satisfy weir pool retaining needs, ensure simultaneously that the weir is firm, this plane degree of depth and facade height can be piled up with the concrete brick and are realized, and the weir pool is made more conveniently.

The plane is established at weir body top, the step concrete brick is grouted on the plane and trowels at concrete brick top surface and forms the weir top, and the brick hole that has transversely link up is opened to the concrete brick, the weir top is the flat top, and the weir top is grouted side by side around with side by side respectively by the concrete brick about two directions of length and width and forms, and the brick hole of the concrete brick side by side concatenates the formation migratory passageway in the front and back. In order to facilitate the mortar-laying of the concrete bricks, the top of the weir body is provided with a plane convenient mortar-laying concrete brick manufacturing weir top; the weir crest is grouted by concrete bricks laid on the plane to form a flat-top shape, meanwhile, a layer of concrete is poured on the top surface of the concrete bricks for trowelling, the weir crest is grouted side by the left and right of the concrete bricks in the length direction corresponding to the flowing of the stream canal water, the weir crest is grouted side by the front and the back of the concrete bricks in the width direction for intercepting the stream canal water, and simultaneously, the front and the back of brick holes on the concrete bricks are butted and connected in series to form a migratory channel for aquatic animals to pass through.

The weir crest width w is at 400 ~ 800mm, and the weir crest is formed by the parallel mortar of building from beginning to end along width direction by 2 ~ 4 concrete bricks, and the brick hole of the concrete brick side by side aligns and concatenates and form the migratory channel from beginning to end. The width of the weir crest is controlled in the range, so that the requirement of valley brook channel water storage can be met, and too many concrete brick grouted weir crests cannot be wasted.

The weir base and the weir body are formed by integrally pouring reinforced concrete, the diameter of a main deformed steel bar for the reinforced concrete is 12mm and the distance between the main deformed steel bar and the weir body is 400mm, and the diameter of a stirrup of the main deformed steel bar is 6.5mm and the distance between the stirrup and the main deformed steel bar is 200 mm. The weir base and the weir body are of an integrally poured reinforced concrete structure, and the main deformed steel bar and the stirrup with the size can meet the requirement of constructing a weir bank in the stream channel.

The surface slope of the weir body at the outer side of the weir dam is 25-30 degrees, cobblestones with the diameter of 10-30 mm are distributed and fixed on the surface of the weir body, the distance between every two adjacent cobblestones is 10-20 mm, and the cobblestones are partially exposed out of the surface of the weir body. The gradient of the weir body is controlled in the interval, the requirements of river channel flood discharge and weir pool water storage are met, and the stability and durability of the weir dam are ensured; the cobblestones partially exposed out of the surface are fixed on the surface of the weir body in a semi-embedding mode, so that water splash caused by collision of water flow discharged by using electric aeration is avoided, and meanwhile, the dissolved oxygen content of pool water is improved.

Keep away from the shoal position of weir dam one side in the weir pool and establish plant species district, plant species district plants a plurality of different aquatic plants and forms a plurality of corresponding vegetation districts, is the same aquatic plant in each vegetation district, and each vegetation district length direction is on a parallel with weir dam extending direction. Different aquatic plants are planted in each level of the weir pool at the shoal position to form a corresponding planting area, so that nitrogen, phosphorus and heavy metals are treated, water quality can be purified, and pollution is reduced; the different kinds of aquatic plants are planted together in a classified mode to form respective plant areas, all the plant areas are parallel to the weir dam along the length direction, the corresponding plant areas are also kept parallel to each other, and parallel planting extending from shallow water to deep water is achieved.

The aquatic plants comprise arundo donax linn, calamus and allium fistulosum which are planted in a distributed manner from the deep water side to the shallow water side in sequence. The three types of the giant reed, the calamus and the allium mongolicum regel belong to emergent aquatic plants in aquatic plants, and are divided into stems and leaves, the plants are upright and straight, the roots and the stems of the lower parts of the plants can be pricked into mud for growing, the emergent water surface of the upper part of the plants has good ornamental value and can add a new brook landscape, wherein the giant reed is positioned at the deepest water position in the three planting areas, and the nitrogen and phosphorus content of the water body is reduced by self-absorption of nitrogen and phosphorus so as to purify the water quality; the allium mongolicum regel is positioned at the shallowest water level position in the three planting areas, and has higher removal rate on organic matters, ammonia nitrogen, phosphate and heavy metals in water so as to purify a water source; the calamus is planted in the area between the arundo donax linn and the allium mongolicum regel, the calamus has the effects of absorbing and enriching heavy metals, preventing pests such as rice planthopper and mosquitoes and the like, the growth of algae in eutrophic water can be inhibited, the water purification effect can be further improved by planting the three aquatic plants in a combined manner, and the ecological environment is improved.

The row spacing of the allium mongolicum regel planted plants is 200x300mm, the row spacing of the calamus planted plants is 300x400mm, and the row spacing of the arundo donax planted plants is 400x500 mm. In the finite space of each level of the weitan, three kinds of aquatic plants are planted according to the set plant row spacing respectively, the proper planting density is kept, nitrogen phosphorus and heavy metal pollution is treated, and the water body is purified.

The utility model discloses with the multistage weir pool that a plurality of weirs dykes separated the brook channel and distribute from top to bottom, every grade of weir pool all has proper amount retaining ability in order to supply groundwater environmental protection, unnecessary retaining flows into the low-level weir pool that borders on through animal migration and the dual-purpose migratory passageway of drainage, still on every grade of dykes and dams the cave dwelling space under water that supplies water to live the animal and live the activity. Further, agricultural pollution can also be administered to ecological weir pool, and plant is all planted with absorption degradation part nitrogen phosphorus and heavy metal pollution to every level of weir pool to and prevent pests such as rice planthopper, mosquito.

Drawings

FIG. 1: the utility model discloses the schematic structure.

FIG. 2: the utility model discloses a weir pool section view.

FIG. 3: concrete brick schematic diagram.

In the figure: 1. the dam comprises a dam base, a dam body 2, a dam top 3, cobblestones 4, a migratory channel 5, a dam embankment inner side 6, a dam embankment outer side 7, a hard base 8, a dam pool 9, a concrete brick 10, a brick hole 101, a cave dwelling 11, a bamboo reed 12, a calamus 13 and a shallot 14.

Detailed Description

The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 to 3, an ecological weir pool for a multi-stage valley brook channel comprises a weir provided in the brook channel, two ends of the weir are butted with a brook channel weir bank, the weir bank intercepts the brook channel to form a weir pool 9 capable of storing water, the brook channel is provided with a plurality of weirs of the same structure from top to bottom along the water flow, all the weir banks separate the brook channel to form a multi-stage weir pool 9 from top to bottom, in this embodiment, multi-stage weir pools can be provided according to the slope condition of the valley brook channel and the requirement of water lifting irrigation of the terrace, a first-stage weir bank can be provided at intervals of 20 to 100 meters, the weir bank comprises an upper weir top 3, a middle weir body 2 and a bottom foundation 1, the accumulated height h of the weir body and the weir top is 600 to 1200mm, in this embodiment, the weir top 3 is preferably 800mm, a through hole in the same direction as the brook channel flow is provided on the weir top 3 to form a return channel 5, one side of the weir body 2 where the weir bank inner side 6 is provided with a hole 11, one side of the weir body 2 back to the stream channel water flow is a weir outer side 7 and is a slope, and a ridge lower than the return channel 5 is formed at the top end of the slope as shown in a circle A in fig. 1 to abut against the weir top 3; the weir base 1 and the weir body 2 are formed by integrally pouring reinforced concrete, the diameter of a deformed steel bar main reinforcement for the reinforced concrete is 12mm, the distance between the deformed steel bar main reinforcement is 400mm, and the diameter of a deformed steel bar main reinforcement stirrup is 6.5mm, and the distance between the deformed steel bar main reinforcement stirrup and the deformed steel bar main reinforcement stirrup is 200 mm; the surface gradient of the weir body 2 on which the outer side 7 of the weir dam is positioned is 25-30 degrees, cobblestones 4 with the diameter of 10-30 mm are scattered and fixed on the surface of the weir body 2, and the cobblestones 4 are partially exposed out of the surface of the weir body 2.

The surface of the weir body 2 on which the inner side 6 of the weir dam is located forms continuous steps from high to low, concrete bricks 10 are grouted and fixed on the steps, the concrete bricks 10 are piled up to form the continuous steps, the plane depth b of the steps is 90-100 mm, the vertical surface height c of the steps is 160-200 mm, the depth b of the steps is 100mm, the height c of the steps is 190mm, and brick holes are formed in the concrete bricks 10 to form the cave dwelling positions 11; the plane is established at 2 tops of weir body, grout concrete brick 10 on this plane, concrete brick top surface concreting is floating, the concrete of concrete brick and top surface forms the weir top 3 together, weir top 4 width w is at 400 ~ 800mm, the preferred 400mm of this embodiment, concrete brick 10 is opened has the brick hole that transversely link up, weir top 3 is the flat top, weir top 3 is formed by the grout side by side about and around with concrete brick 10 respectively along two directions of length and width, wherein length direction and brook water flow syntropy, width direction is interception brook water direction, weir top 3 forms by the grout side by side around 2 concrete brick 10 along width direction in this embodiment, the brick hole of concrete brick 10 side by side from beginning to end aligns and concatenates and forms migratory passageway 5.

A plant growing area is arranged at a shoal position on one side, far away from the weir dam, in the weir pond 9, three different aquatic plants, namely giant reed 12, calamus 13 and allium mongolicum 14, are grown in the plant growing area to form three corresponding plant areas, the same aquatic plant is arranged in each plant area, and the length directions of the three plant areas are parallel to the extending direction of the weir dam; the giant reed 12, the calamus 13 and the allium mongolicum 14 are planted from the deep water side to the shallow water side in sequence, wherein the row spacing of the planted allium mongolicum 14 is 200x300mm, the row spacing of the planted calamus 13 is 300x400mm, and the row spacing of the planted giant reed 12 is 400x500 mm.

As shown in fig. 2, when the weir dam is constructed, firstly digging the bottom of a valley brook channel to an underground hard base 8, clearing up, firstly erecting a mold and arranging reinforcing steel bars to integrally pour the weir base and the weir body, wherein the reinforcing steel bar main reinforcing steel bars are deformed steel bars with the diameter of 12mm and the interval of 400mm, the main reinforcing steel bars are inserted into the hard base and the valley brook channel weir dam, and the stirrup with the diameter of 6.5mm and the interval of 200mm is wrapped at the inner side of a concrete brick arranged at the inner side of the weir dam as shown in fig. 2, the top of the weir body corresponding to the outer side of the weir dam can be partially wrapped to form the lower part of the concrete brick of the weir crest, and specifically, a brick hole which is provided with a shoulder ridge to abut against one side of the weir crest and is lower than a return passage, namely the concrete brick is formed; concrete bricks for constructing the weir dam are all three-hole concrete bricks 10 shown in fig. 3, each concrete brick is provided with three brick holes 101, after the concrete bricks on the inner side of the weir dam are fixed and grouted, concrete is poured, the slope surface on the outer side of the weir dam is leveled, meanwhile cobblestones 4 are embedded in the slope surface in a criss-cross mode, the diameter of each cobblestone 4 is 10-30 mm, the distance between every two adjacent cobblestones is 10-20 mm, and part of each cobblestone 4 is exposed out of the slope surface; the top of the poured weir body is grouted with three-hole concrete bricks to manufacture a weir top, the top surface of the concrete bricks is poured and pressed to be leveled by concrete, and the top surface form the weir top; and removing the mold and backfilling the stream channel to cover the bottom of the excavated weir body and the weir base.

The utility model is suitable for a brook channel with the width of 1-4 m in a valley dock, a plurality of weir banks flowing to the top down along the brook channel separate the brook channel in the valley into multistage ecological weir ponds distributed up and down, each level of weir pond has a proper amount of water storage capacity to supplement groundwater for protecting environment, a return passage at the upper part of the weir bank can help flood discharge under heavy rain and provide a passage for daily aquatic animal migration, and a hole is arranged at the inner side of the weir bank to provide an underwater cave dwelling space for survival activity of the aquatic animals; the cobblestones on the slope of the weir dam can avoid electric aeration, and the downward flow collides with the splashed water splash, so that the dissolved oxygen content of the water quality is improved; the aquatic plants planted in the shoal position in the plunge pool can treat nitrogen, phosphorus and heavy metal pollution, treat water pollution caused by terrace agricultural production, effectively purify valley creek canal water bodies, prevent and treat rice planthoppers, mosquitoes and other pests, and comprehensively improve the ecological environment of the valley creek canal.

Claims (10)

1. An ecological weir pool for a multi-stage valley brook channel comprises a weir dam arranged in the brook channel, wherein two ends of the weir dam are butted with a brook channel weir dam, the brook channel is intercepted by the weir dam to form a weir pool (9) capable of storing water, it is characterized in that a plurality of weir dams with the same structure are arranged on the stream channel from top to bottom along the water flow, the weir dams divide the stream channel into a plurality of weir ponds (9) from top to bottom, the weir crest (3) on upper portion and weir body (2) at middle part and weir base (1) of bottom are drawn together to the weir bank, weir crest (3) are equipped with and form migratory passageway (5) with the through-hole of brook flowing water syntropy, one side that weir body (2) met to the brook flowing water is that the weir bank is inboard (6), set up hole formation cave dwelling place (11) on weir body (2) at the inboard (6) of weir bank place, one side that weir body (2) dorsad the brook flowing water is weir bank outside (7) and for domatic, domatic top forms the sleeveless shoulder that is less than migratory passageway (5) together and supports weir crest (3).

2. The ecological weir pool of multistage valley brook channel of claim 1, characterized by that the weir body (2) surface that the weir dyke inboard (6) is located forms from high to low continuous ladder, the fixed concrete brick (10) of starching on the ladder, and concrete brick (10) are piled up and are formed continuous step, offer the brick hole and form the cave dwelling (11) on the concrete brick (10).

3. The ecological weir puddle of multistage valley brook channel of claim 2, characterized by that the level depth b of said step is in the range of 90-100 mm, the elevation height c is in the range of 160-200 mm.

4. The ecological weir pool of multistage valley brook, characterized by weir body (2) top establishes the plane, the concrete brick (10) is grouted and forms the weir crest (3) at concrete brick top face pouring concrete trowelling on the plane, concrete brick (10) is opened has the brick hole that transversely link up, weir crest (3) are the flat top, weir crest (3) are grouted side by side around and around with concrete brick (10) respectively in length and width two directions and are formed, and the brick hole of concrete brick (10) that is side by side from beginning to end concatenates forms return trip passageway (5).

5. The ecological weir pool of multistage valley brook channel of claim 4, characterized by that the width w of weir crest (3) is 400 ~ 800mm, and weir crest (3) is grouted by 2 ~ 4 concrete bricks (10) side by side from front to back along the width direction, and the brick hole of the concrete brick (10) side by side from front to back aligns and concatenates and forms migratory passageway (5).

6. The ecological weir pool of multistage valley brook channel of claim 1, characterized in that weir base (1) and weir body (2) are cast for reinforced concrete is integrative, the screw-thread main reinforcement diameter for reinforced concrete is 12mm and interval 400mm, the screw-thread main reinforcement stirrup diameter is 6.5mm and interval 200 mm.

7. The ecological weir pool of the multi-stage valley brook channel as claimed in claim 1, wherein the surface gradient of the weir body (2) at the outer side (7) of the weir bank is 25-30 °, and cobblestones (4) with the diameter of 10-30 mm are scattered and fixed on the surface of the weir body (2), the distance between adjacent cobblestones is 10-20 mm, and the cobblestones (4) are partially exposed out of the surface of the weir body (2).

8. The ecological weir pool of multistage valley brook channel of claim 1, characterized in that the shallow position of the weir pool (9) far away from the weir dam is provided with a plant growing area, the plant growing area grows a plurality of different aquatic plants to form a plurality of corresponding plant areas, the same aquatic plants are arranged in each plant area, and the length direction of each plant area is parallel to the extending direction of the weir dam.

9. The ecological weir pool of multistage valley brook channel of claim 8, characterized in that the aquatic plant includes arundo donax (12), calamus (13) and shallot (14), and arundo donax (12), calamus (13) and shallot (14) are separately planted in order from the deep water side to the shallow water side.

10. The multi-stage valley brook ecological weir pool as claimed in claim 9, wherein the row spacing for planting allium fistulosum (14) is 200x300mm, the row spacing for planting calamus (13) is 300x400mm, and the row spacing for planting arundo donax (12) is 400x500 mm.

Images