CN217378749U

CN217378749U - Ecological spur dike of adjustable rate of permeating water

Info

Publication number: CN217378749U
Application number: CN202121299022.4U
Authority: CN
Inventors: 陈橙; 杜飞; 叶金威; 张心; 蔡靖铭; 唐佳成; 赖梦楠
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-09-06
Anticipated expiration: 2031-06-10

Abstract

The utility model relates to an ecological spur dike of adjustable rate of permeating water, include one side fixed connection in the bank, the dam body of lower part fixed connection in the riverbed, the dam body is perpendicular to the bank and also perpendicular to the riverbed simultaneously, the dam body includes the rectangle framework, install the shutter gate of adjustable aperture in the middle of the rectangle framework; ecological net cages are arranged on the upstream side and the downstream side of the dam body, and a filter screen is arranged between each ecological net cage and the dam body. The ecological spur dike with adjustable water permeability has reasonable design, simple structure, convenient construction, easy maintenance and lower manufacturing cost, and can adapt to the change of water flow in most flood periods and dry periods of river channels by controlling the opening degree of the shutter gates of the dam body; by configuring the ecological net cages, the eutrophication degree of the water body can be reduced, the biological diversity of the river channel is protected, the aesthetic feeling of the river channel is increased, and the requirements of controlling the water level and protecting the ecology of most river channels are met.

Description

Ecological spur dike of adjustable rate of permeating water

Technical Field

The utility model relates to a river course renovation building field, especially an ecological spur dike of adjustable rate of permeating water.

Background

The spur dike is widely applied to the renovation projects such as a river channel or a navigation channel, can protect the bank slope from being directly eroded by water flow to generate brushing damage, and plays an important role in protecting the ecological diversification of water. Most of the existing spur dikes are gravity type spur dikes, once the gravity type spur dikes are built, parameters such as height, length and water permeability cannot be changed, and corresponding changes cannot be made on different water flow forms in a flood period and a dry period. At present, the invention related to the permeable spur dike for improving the technical problems of the gravity spur dike is provided in China.

For example, patent document CN201910178955.9 discloses a water permeable spur dike structure. The invention realizes that the permeable spur dike prevents floaters on the water surface from being adhered and accumulated, adapts to the permeable requirements of different flows of rivers and improves the ecological environment of the rivers.

For another example, application No. CN201910215345.1 discloses an ecological water permeable spur dike system. The invention changes the original flow field of the river, reduces the flow velocity of the river, intercepts the silt, creates conditions for the growth and inhabitation of aquatic organisms, builds and recovers the local ecological environment of the river channel and enriches the biological diversity of the river channel.

Compared with the traditional spur dike, the permeable spur dike effectively reduces erosion of water flow to the dam body, but in the case of large environmental change in rivers and the like, the spur dike has no universality during operation because the length of the spur dike is constant and the water permeability of the spur dike is in a fixed range, and still lacks good self-adaptive energy-saving capacity, and is not beneficial to long-term use of the spur dike.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an ecological spur dike of adjustable rate of permeating water can come the aperture of control dam body shutter gate to realize the regulation to river velocity of flow according to the change of river course rivers.

The utility model discloses a following scheme realizes: an ecological spur dike with adjustable water permeability comprises a dike body, wherein one side of the dike body is fixedly connected with a river bank, and the lower part of the dike body is fixedly connected with a river bed; ecological net cages are arranged on the upstream side and the downstream side of the dam body, and a filter screen is arranged between each ecological net cage and the dam body.

Furthermore, the length of the dam body accounts for 1/4-1/2 of the width of the river channel.

Furthermore, adsorption filler is filled in the ecological net cage; the ecological net cage is fixed on a riverbed through a plurality of prestressed concrete pipe piles arranged at intervals, the lower ends of the prestressed concrete pipe piles are provided with truncated cone-shaped pile heads, pile tips are inserted into the pile heads, and the prestressed concrete pipe piles are provided with a plurality of grooves for fixing the ecological net cage; a bionic plant cushion layer is laid around the ecological net cage; aquatic plants are planted on the top of the ecological net cage.

Furthermore, a positioning column is arranged between the dam body and the river bank, T-shaped fixing piles are arranged at the upper end and the lower end of the positioning column, the side part of the fixing pile at the upper end of the positioning column is embedded into the river bank, the fixing pile at the lower end of the positioning column is embedded into the riverbed, fixing grooves are formed in the side parts of the upper end and the lower end of the positioning column, and a connecting pile inserted into the fixing grooves is arranged at one end, facing the positioning column, of the dam body; the lower side of the rectangular frame body is also provided with a pile body embedded into a river bed.

Furthermore, the louver gate comprises a plurality of louver boards which are vertically arranged in the rectangular frame body and are arranged along the length direction of the dam body, and the upper ends and the lower ends of the louver boards are fixedly connected with rotating shafts which are respectively in rotating fit with the upper frame edge and the lower frame edge of the rectangular frame body; and a driving device for driving the louver boards to rotate is arranged on the dam body.

Furthermore, the driving device comprises a rack which is arranged in the upper frame edge or the lower frame edge of the rectangular frame body and can reciprocate along the length direction of the dam body, one end of the rack is provided with an electric push rod for driving the rack to reciprocate, and a gear which is meshed with the rack is arranged on the rotating shaft of the louver board.

Furthermore, a locking mechanism which locks the rack after moving in place is arranged on the rectangular frame body, the locking mechanism comprises a locking pin which is driven by an electromagnet to stretch, and at least two pin holes which are used for the locking pin to be inserted when the locking pin stretches are arranged on the rack at intervals.

Compared with the prior art, the utility model discloses following beneficial effect has: the ecological spur dike with adjustable water permeability has reasonable design, simple structure, convenient construction, easy maintenance and lower manufacturing cost, has self-adaptive adjustment capability, and can adapt to the change of water flow in most river channels in flood period and dry period by controlling the opening degree of the shutter gate of the dam body; by configuring the ecological net cages, the eutrophication degree of the water body can be reduced, the biological diversity of the river channel is protected, the aesthetic feeling of the river channel is increased, and the requirements of controlling the water level and protecting the ecology of most river channels are met.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and related drawings.

Drawings

Fig. 1 is a schematic top view of an embodiment of the present invention;

FIG. 2 is a schematic front view of an embodiment of the present invention;

FIG. 3 is a front view of a dam body in the embodiment of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

fig. 5 is a front view of the ecological net cage in the embodiment of the present invention;

FIG. 6 is a schematic structural view of a prestressed concrete pipe pile according to an embodiment of the present invention;

FIG. 7 is a top view of a louver board and rack connection structure according to an embodiment of the present invention;

the numbering in the figures illustrates: 001-river bank; 002-ecological net cage; 003-positioning columns; 004-a dam body; 005-a filter screen; 006-water stream; 007-river bed; 008-fixing piles; 009-fixed slot; 010-a drive device; 011-rack; 012-a rotation shaft; 013-connecting piles; 014-electric putter; 015-a locking pin; 016-louver boards; 017-aquatic plants; 018-prestressed concrete pipe piles; 019-grooves; 020-pile tip; 021-Gear.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure herein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As shown in the figures 1-7,an ecological spur dike with adjustable water permeability comprises a dam body 004 with one side fixedly connected to a river bank 001 and the lower part fixedly connected to a river bed 007, wherein the dam body 004 is perpendicular to the river bank and the river bed, the dam body 007 comprises a rectangular frame body, and a shutter gate with an adjustable opening degree is installed in the middle of the rectangular frame body; ecological net cages 002 are arranged on the upstream side and the downstream side of the dam body 004, and a filter screen 005 is arranged between the ecological net cages 002 and the dam body; the ecological spur dike can control the opening degree of the shutter gate, and the shutter gate can be completely opened in a flood period, and the equation is expressed by

Therefore, when the flow is constant, the river water flow rate can be reduced by increasing the water passing area of the river channel, and the water flow scouring is further reduced; in a dry season, the shutter gate can be closed to block a part of the river channel, so that the water passing area of the river channel is reduced, the water level is choked up, the flow velocity of water flow is improved, the sedimentation of the river channel is avoided, and the navigation is ensured; the ecological spur dike can protect the river bank from water flow scouring, can make corresponding changes to the water flow size in different periods, and solves the problem of water eutrophication.

In this embodiment, the length of the dam 004 accounts for 1/4-1/2 of the width of the river channel, and the specific length is determined according to actual conditions.

In this embodiment, the ecological net cage 002 is filled with an adsorption filler; the ecological net cage 002 is fixed on a riverbed through a plurality of prestressed concrete pipe piles 018 arranged at intervals, wherein the prestressed concrete pipe piles 018 are cylindrical with the radius of 2-5 cm; the lower end of the prestressed concrete pipe pile 018 is provided with a truncated cone-shaped pile head, a pile tip 020 is inserted into the pile head, the prestressed concrete pipe pile is provided with a plurality of grooves 019 for fixing the ecological net cage, and the width of the groove 019 is 0.2-0.5 cm; a bionic plant cushion layer is laid around the ecological net cage; aquatic plants 017 are planted at the top of the ecological net cage; along the river water flow direction, the water body firstly contacts the ecological net cage 002 on the upstream side of the dam body 004, and the ecological net cage increases the attractiveness and the ornamental value of the spur dike structure; the adsorption filler in the ecological net cage adopts zeolite, volcanic rock, steel slag and the like, can adsorb elements such as ammonia, nitrogen, phosphorus and the like in a water body, can prevent the water body from being eutrophicated, can transfer the absorbed energy to aquatic plants 017 planted on the net cage, and achieves the effects of practicability and beauty; the bionic plant cushion layer can effectively protect aquatic animals such as fishes in the river channel, provide a place where the aquatic animals can inhabit and multiply, and further protect ecological diversity.

In this embodiment, the filter screen 005 is a 3 × 3cm grid structure formed by steel wires, water flow enters the filter screen 005 along the river channel, and the filter screen 005 can block floating objects in the river channel outside the dam body 004 to prevent the dam body from being wound by the floating objects.

In this embodiment, a positioning column 003 is disposed between the dam 004 and the river bank 001, T-shaped fixing piles 008 are disposed at the upper and lower ends of the positioning column 003, the side portion of the fixing pile at the upper end of the positioning column 003 is embedded in the river bank, the fixing pile at the lower end of the positioning column is embedded in the river bed, fixing grooves 009 are disposed at the upper and lower side portions of the positioning column 003, and a connection pile 013 inserted into the fixing grooves is disposed at one end of the dam 004 facing the positioning column; the lower side of the rectangular frame body is also provided with a pile body embedded into a river bed.

In this embodiment, the louver gate includes a plurality of louver boards 016 vertically arranged in the rectangular frame and arranged along the length direction of the dam, the louver boards are coated with corrosion-resistant layers to prolong the service life of the dam, and the upper and lower ends of the louver boards 016 are fixedly connected with rotating shafts 012 which are respectively rotatably matched with the upper frame edge and the lower frame edge of the rectangular frame; a driving device 010 for driving the louver boards to rotate is arranged on the dam body; the distance between the adjacent rotating shafts 012 is 20-50cm, and the width of the louver 016 is 20-50 cm.

In this embodiment, the driving device 010 includes a rack 011 disposed inside an upper frame edge or a lower frame edge of the rectangular frame and capable of moving back and forth along a length direction of the dam, an electric push rod 014 for driving the rack 011 to move back and forth is disposed at one end of the rack, the rack is connected to a push rod of the electric push rod, and a gear 021 engaged with the rack is mounted on a rotating shaft of the louver; the electric push rod stretches out and draws back to drive the rack to move, the rack drives the gear to rotate so as to drive the louver boards to rotate and change the angle, when the louver boards are parallel to the length direction of the dam body, the louver gate is in a closed state, when the louver boards are perpendicular to the length direction of the dam body, the louver gate is completely opened, and the rack can drive the louver boards to rotate within the range of 0-90 degrees.

In this embodiment, a locking mechanism for locking the position of the rack after the rack moves in place is arranged on the rectangular frame, the locking mechanism comprises a locking pin 015 which is driven by an electromagnet to stretch, and at least two pin holes for the locking pin to be inserted when the locking pin stretches are arranged on the rack at intervals; when the louver boards are in two states of being completely opened (the included angle between the louver boards and the dam body is 90 degrees) and completely closed (the included angle between the louver boards and the dam body is 0 degree), only two pin holes are needed to be arranged, one pin hole is matched with the lock pin when the louver boards are completely opened, and the louver boards are guaranteed to be stably kept in the completely opened state; and the other is matched with the lock pin when the louver board is completely closed, so that the louver board is stably kept in a completely closed state. In the specific implementation process, if the louver boards are required to be adjusted in multiple angles, the number of pin holes can be increased between the two pin holes.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other has declared, fixed connection can understand: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an ecological spur dike of adjustable permeable rate which characterized in that: the dam body is vertical to the river bank and the river bed, and comprises a rectangular frame body, and a shutter gate with an adjustable opening degree is arranged in the middle of the rectangular frame body; ecological net cages are arranged on the upstream side and the downstream side of the dam body, and a filter screen is arranged between each ecological net cage and the dam body.

2. The adjustable permeable ecological spur dike according to claim 1, characterized in that: the length of the dam body accounts for 1/4-1/2 of the width of the river channel.

3. The adjustable permeable ecological spur dike according to claim 1, characterized in that: the interior of the ecological net cage is filled with adsorption filler; the ecological net cage is fixed on a riverbed through a plurality of prestressed concrete pipe piles arranged at intervals, the lower ends of the prestressed concrete pipe piles are provided with round platform-shaped pile heads, pile tips are inserted into the pile heads, and the prestressed concrete pipe piles are provided with a plurality of grooves for fixing the ecological net cage; a bionic plant cushion layer is laid around the ecological net cage; aquatic plants are planted on the top of the ecological net cage.

4. The adjustable permeable ecological spur dike according to claim 1, characterized in that: a positioning column is arranged between the dam body and the river bank, T-shaped fixing piles are arranged at the upper end and the lower end of the positioning column, the side part of the fixing pile at the upper end of the positioning column is embedded into the river bank, the fixing pile at the lower end of the positioning column is embedded into the riverbed, fixing grooves are formed in the upper end and the lower end of the positioning column, and a connecting pile inserted into the fixing grooves is arranged at one end of the dam body, facing the positioning column; the lower side of the rectangular frame body is also provided with a pile body embedded into a river bed.

5. The adjustable permeable ecological spur dike according to claim 1, characterized in that: the louver gate comprises a plurality of louver boards which are vertically arranged in the rectangular frame body and are arranged along the length direction of the dam body, and the upper ends and the lower ends of the louver boards are fixedly connected with rotating shafts which are respectively matched with the upper frame edge and the lower frame edge of the rectangular frame body in a rotating way; and a driving device for driving the louver boards to rotate is arranged on the dam body.

6. The ecological spur dike with adjustable water permeability according to claim 5, wherein: the driving device comprises a rack which is arranged in an upper frame edge or a lower frame edge of the rectangular frame body and can reciprocate along the length direction of the dam body, an electric push rod for driving the rack to reciprocate is arranged at one end of the rack, and a gear meshed with the rack is arranged on a rotating shaft of the louver board.

7. The ecological spur dike with adjustable water permeability according to claim 6, wherein: the rectangular frame body is provided with a locking mechanism for locking the rack after the rack moves in place, the locking mechanism comprises a lock pin driven by an electromagnet to stretch, and at least two pin holes for the lock pin to be inserted when the lock pin stretches are arranged on the rack at intervals.