Water filtering overflow dam with ecological water retention function
The overflow dam, constructed with concrete and masonry, combined with gabion walls and multiple filter layers, solves the problems of easy dam blockage and insufficient water purification, thereby stabilizing the ecological base flow of the river and purifying the water quality, thus enhancing the ecological health of the river.
Patent Information
- Application Number
- CN202520309559.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing dam structure is unstable, prone to blockage, and difficult to effectively purify water quality and maintain the ecological base flow of the river. In addition, the water body is prone to oxygen deficiency and foul odor.
The overflow dam, constructed from concrete and masonry, combines gabion walls, multiple filter layers, and an irregular base to form multiple filtration zones. Stability is enhanced by using filter stones of different particle sizes and steel cages made of galvanized steel, and the overall structure is reinforced by pre-embedded piers and columns.
It has achieved the stability and anti-blockage capacity of the dam body, enhanced the ecological base flow and water purification function of the river, prevented damage caused by water scouring, and ensured the ecological health of the river.
Smart Images
Figure CN223853255U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water conservancy engineering technical field, concretely is a filter water overflow dam with ecological water conservation function. BACKGROUND
[0002] Due to the discharge of domestic sewage, production wastewater and agricultural planting non-point source pollution, part of river ecosystem function has been degraded, especially the river with insufficient water power and missing ecological base flow, due to poor self-purification capacity, more vulnerable to exogenous pollution, eventually leading to the large consumption of water dissolved oxygen, causing water blackening and stench, and then endangering the entire ecological system.
[0003] The dam is a water retaining structure for intercepting river channel water flow to raise water level or regulate flow, has the functions of raising water level, regulating runoff and concentrating water head, and the existing dam is mostly concrete or masonry, which has poor ecological effect and is not easy to remove pollutants in water; the filter dam is a common technical measure in river regulation engineering, which uses fillers to pile up the dam body to achieve the functions of upstream water storage and water permeable space formed by the gaps between fillers to enhance downstream water drop reoxygenation function, and uses fillers to form microbial attachment base to decompose pollutants by using the degradation of microorganisms, the traditional ecological filter dam generally has unstable dam body, easy to block and other conditions, easy to deform and break, and has poor water quality purification and water drop reoxygenation capacity.
[0004] Therefore, it is urgent to develop a new dam with stable dam body structure, not easy to block, certain water retention capacity, guaranteeing the ecological base flow of river, and having water quality purification and reoxygenation functions. SUMMARY
[0005] The utility model discloses a filter water overflow dam with ecological water conservation function, make dam body structure stable, not easy to block, have certain water retention capacity, guarantee the ecological base flow of river, and have water quality purification and reoxygenation functions simultaneously, and the structure can effectively disperse and transmit power, enhance the stability of filter water overflow dam or revetment, prevent the damage caused by water scouring.
[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a filter water overflow dam with ecological water conservation function, including filter water overflow dam body, the filter water overflow dam body is built by concrete and mortar masonry and is composed of base, two stone cage subwalls vertically arranged on the top of the base, second filter water layer arranged between the two stone cage subwalls, first filter water layer arranged on one side of the left stone cage subwall, third filter water layer arranged on one side of the right stone cage subwall, the side of the first filter water layer away from the stone cage subwall is curved, and the side of the third filter water layer away from the stone cage subwall is stepped.
[0007] Preferably, the second water filtering layer is filled from bottom to top by fine and coarse filter stones in sequence, the first water filtering layer is filled by medium filter stones, and the fine, coarse and medium filter stones are externally wrapped by gabion cages; the stone cage subwall and the third water filtering layer are both composed of steel cages and stones filled in the steel cages, and the stones in the stone cage subwall are much smaller than the stones in the third water filtering layer.
[0008] Preferably, the height of the coarse filter stone is two-thirds of the height of the fine filter stone.
[0009] Preferably, the particle size of the fine filter stone is 2.9-5.9mm, the particle size of the medium filter stone is 7.3-12.3mm, the particle size of the coarse filter stone is 23.4-29.4mm, the particle size of the stones in the stone cage subwall is 30-35mm, and the particle size of the stones in the third water filtering layer is greater than 505mm.
[0010] Preferably, the gabion cages and the steel cages are made of galvanized steel.
[0011] Further, the bottom of the base is provided with an isosceles trapezoidal groove, and a pre-embedded pier is arranged in the isosceles trapezoidal groove.
[0012] Further, the bottom of the pre-embedded pier is vertically provided with a pre-embedded column.
[0013] Compared with the prior art, the utility model has the advantages of the following:
[0014] 1. The first water filtering layer, the second water filtering layer, the third water filtering layer and the stone cage subwall on the base form multiple filtering areas for the water filtering overflow dam, so that the dam body structure is stable and not easy to be blocked, has a certain water retention capacity, guarantees the ecological base flow of the river channel, and simultaneously has the water quality purification and oxygenation functions of the novel dam; and the structure can effectively disperse and transfer force, enhance the stability of the water filtering overflow dam or the revetment, and prevent damage caused by water flow scouring.
[0015] 2. The pre-embedded pier and the pre-embedded column can effectively enhance the overall stability of the water filtering overflow dam, prevent the dam body from tilting or collapsing due to water flow scouring, foundation settlement and other factors, and simultaneously slow down the scouring speed of the water flow on the bottom of the water filtering overflow dam, so as to protect the dam body from direct erosion of the water flow. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportion.
[0017] Figure 1 It is a structure schematic view of the utility model.
[0018] Figure 2 It is Figure 1 It is a structure schematic view of A-A direction.
[0019] Figure 3 It is a structure schematic view of the utility model steel reinforcement cage and stone.
[0020] Figure 4 It is a structure schematic view of the utility model embedded pier and embedded column.
[0021] Marked in the figure: 1, water filter overflow dam body; 2, pedestal; 3, gabion subwall; 4, second water filter layer; 5, first water filter layer; 6, third water filter layer; 7, gabion cage; 8, fine equal particle size filter stone; 9, large equal particle size filter stone; 10, medium particle size filter stone; 11, steel reinforcement cage; 12, stone; 13, isosceles trapezoidal groove; 14, embedded pier; 15, embedded column. Specific implementation
[0022] Please refer to Figures 1 to 4 A water filter overflow dam with ecological water retention function, comprising a water filter overflow dam body 1, the water filter overflow dam body 1 is built by concrete and mortar stone pedestal 2, two gabion subwalls 3 vertically arranged on the top of the pedestal 2, a second water filter layer 4 arranged between the two gabion subwalls 3, a first water filter layer 5 arranged on the left side of the left gabion subwall 3, a third water filter layer 6 arranged on the right side of the right gabion subwall 3; the bottom of the pedestal 2 is not flat; the side of the first water filter layer 5 away from the gabion subwall 3 is curved; the side of the third water filter layer 6 away from the gabion subwall 3 is stepped.
[0023] In the embodiment, the first water filtering layer 5, the second water filtering layer 4, the third water filtering layer 6 and the gabion subwall 3 on the irregular base 2 form multiple filtering areas for the water overflow dam, the first water filtering layer 5 performs primary filtering overflow on the water flow, the second water filtering layer 4 performs secondary filtering overflow on the water flow, and the gabion subwall 3 also has the filtering overflow effect on the water flow, and the third water filtering layer 6 can allow the water flow to pass through and reduce the impact force of the water flow, which can effectively disperse and transfer the force, enhance the stability of the water overflow dam or the revetment, and prevent the damage caused by the water flow erosion; meanwhile, the curved first water filtering layer 5 can help to reduce the resistance of the water flow on the dam body, can ensure that the water flow can smoothly pass through the dam body during the flood period, improve the flood discharge efficiency, help to reduce the erosion and corrosion effect of the water flow on the dam body, prolong the service life of the dam body, and can enhance the overall stability of the water overflow dam; the stepped third water filtering layer 6 can allow the water flow to pass through and reduce the impact force of the water flow, which can effectively disperse and transfer the force, enhance the stability of the water overflow dam or the revetment, and prevent the damage caused by the water flow erosion; and the irregular base 2 surface can better adapt to the complex terrain conditions, ensure the close combination between the water overflow dam and the foundation, reduce the risk of structural instability caused by the uneven foundation, and meanwhile, the irregular base 2 surface can effectively disperse the pressure of the dam body on the foundation through the uneven design, avoid the foundation settlement or deformation caused by the excessive local pressure, thereby enhancing the overall stability of the dam body; ensure the strength and stability effect of the water overflow dam body 1, and the water overflow dam body 1 is not easy to be blocked, has a certain water retention capacity, protects the ecological base flow of the river, and has the water quality purification and oxygenation functions.
[0024] As a technical optimization scheme of the utility model, the second water filtering layer 4 is filled with fine equal particle size filter stones 8 and large equal particle size filter stones 9 from bottom to top, the first water filtering layer 5 is filled with medium particle size filter stones 10, and the fine equal particle size filter stones 8, the large equal particle size filter stones 9 and the medium particle size filter stones 10 are wrapped with gabion cages 7; the gabion subwall 3 and the third water filtering layer 6 are both composed of steel cages 11 and stone blocks 12 filled in the steel cages 11, and the size of the stone blocks 12 in the gabion subwall 3 is much smaller than that of the stone blocks 12 in the third water filtering layer 6; the height of the large equal particle size filter stones 9 is two-thirds of the height of the fine equal particle size filter stones 8; the particle size of the fine equal particle size filter stones 8 is 2.9-5.9mm; the particle size of the medium particle size filter stones 10 is 7.3-12.3mm; the particle size of the large equal particle size filter stones 9 is 23.4-29.4mm; the particle size of the stone blocks 12 in the gabion subwall 3 is 30-35mm; the particle size of the stone blocks 12 in the third water filtering layer 6 is greater than 505mm; and the gabion cages 7 and the steel cages 11 are made of galvanized steel materials.
[0025] In the embodiment, the first water filtering layer 5, the second water filtering layer 4, the third water filtering layer 6 and the gabion subwall 3 are filled with filter stones with different particle sizes to filter water, the filter stones are beneficial to improve the blockage of the water filtering layer, and more oxygen can be diffused and convected in the more open surface layer, so that the purification effect of the filler is improved; the steel reinforcement cage 11 made of galvanized steel material can adapt to the change of the slope without being damaged by the flexible structure, and has better safety and stability than the rigid structure; and the flexible structure feature makes the galvanized gabion net maintain stability in complex terrain and not easy to be damaged, meanwhile, the galvanized gabion net has strong scouring resistance and can withstand high water flow scouring, and the maximum water flow speed can reach 6 m / s, so that the galvanized gabion net has significant advantages in protection engineering in rivers, reservoirs and other water areas.
[0026] The gabion subwall 3 is fixed at the bottom of the base 2, and the fine filter stones 8 play a reinforcing role at the bottom of the gabion subwall 3.
[0027] As a technical optimization scheme of the utility model, the base 2 is provided with an isosceles trapezoidal groove 13, and the isosceles trapezoidal groove 13 is provided with a pre-embedded pier 14.
[0028] In the embodiment, the pre-embedded pier 14 supports the base 2 below, can effectively enhance the overall stability of the water filtering overflow dam, prevent the dam body from tilting or collapsing due to water flow scouring, foundation settlement and other factors, can more evenly distribute the weight of the water filtering overflow dam to the pre-embedded pier 14, reduce the local pressure of the foundation, thereby reducing the risk of foundation deformation, ensuring the long-term stable operation of the dam body, and can slow down the scouring speed of the water flow on the bottom of the water filtering overflow dam, protecting the dam body from direct erosion of the water flow.
[0029] As a technical optimization scheme of the utility model, the bottom of the pre-embedded pier 14 is vertically provided with a pre-embedded column 15.
[0030] In the embodiment, the pre-embedded column 15 further strengthens the overall stability of the pre-embedded pier 14, and ensures the accurate position of the pre-embedded pier 14 below the base 2 of the dam body, which helps to ensure the overall construction accuracy and stability of the dam body.
[0031] The working principle and use process of the utility model are as follows:
[0032] The first water filtering layer 5, the second water filtering layer 4, the third water filtering layer 6 and the stone cage subwall 3 on the base 2 make the water filtering overflow dam form multiple filtering areas, the first water filtering layer 5 performs primary filtering overflow on the water flow, the second water filtering layer 4 performs secondary filtering overflow on the water flow, and the stone cage subwall 3 also plays a filtering overflow role on the water flow, and the third water filtering layer 6 can allow the water flow to pass and reduce the impact force of the water flow, the structure can effectively disperse and transfer the force, enhance the stability of the water filtering overflow dam or the revetment, prevent the damage caused by the water flow scouring, ensure the strength and stability effect of the water filtering overflow dam body 1, and effectively enhance the overall stability of the water filtering overflow dam through the pre-buried piers 14 and the pre-buried columns 15, and prevent the dam body from being inclined or collapsed due to the water flow scouring, foundation settlement and other factors, meanwhile, the scouring speed of the water flow on the bottom of the water filtering overflow dam can be slowed down, and the dam body is protected from the direct erosion of the water flow.
[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A water filtering overflow dam with ecological water retention function, comprising a water filtering overflow dam body (1), characterized in that: The filter overflow dam body (1) is composed of a base (2) made of concrete and mortar, two stone cage subwalls (3) vertically arranged on the top of the base (2), a second filter layer (4) arranged between the two stone cage subwalls (3), a first filter layer (5) arranged on the side of the left stone cage subwall (3), and a third filter layer (6) arranged on the side of the right stone cage subwall (3).
2. The water filtering overflow dam with ecological water retention function according to claim 1, characterized in that: The second filter layer (4) is sequentially filled from bottom to top with fine and large particle size filter stones (8) and (9), the first filter layer (5) is filled with medium particle size filter stones (10), the fine and large particle size filter stones (8) and (9) and the medium particle size filter stones (10) are wrapped with gabion cages (7), the stone cage subwalls (3) and the third filter layer (6) are both composed of steel cages (11) and stone blocks (12) filled in the steel cages (11), and the stone blocks (12) in the stone cage subwalls (3) are much smaller than the stone blocks (12) in the third filter layer (6).
3. The water filtering overflow dam with ecological water retention function according to claim 2, characterized in that: The height of the large particle size filter stone (9) is two-thirds of the height of the fine particle size filter stone (8).
4. The water filtering overflow dam with ecological water storage function according to claim 2, characterized in that: The particle size of the fine particle size filter stone (8) is 2.9-5.9 mm, the particle size of the medium particle size filter stone (10) is 7.3-12.3 mm, the particle size of the large particle size filter stone (9) is 23.4-29.4 mm, the particle size of the stone blocks (12) in the stone cage subwalls (3) is 30-35 mm, and the particle size of the stone blocks (12) in the third filter layer (6) is greater than 505 mm.
5. The water filter overflow dam with ecological water retention function according to claim 2, characterized in that: The gabion cages (7) and the steel cages (11) are made of galvanized steel.
6. The water filter overflow dam with ecological water retention function according to claim 1, characterized in that: The base (2) is provided with an isosceles trapezoidal groove (13) at the bottom, and the isosceles trapezoidal groove (13) is provided with a pre-embedded pier (14).
7. The water filtering overflow dam with ecological water retention function according to claim 6, characterized in that: The pre-embedded pier (14) is vertically provided with a pre-embedded column (15) at the bottom.