CN110904916B - Ecological control guide structure for water flow dead angles of cities and city groups - Google Patents

Ecological control guide structure for water flow dead angles of cities and city groups Download PDF

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Publication number
CN110904916B
CN110904916B CN201911220952.3A CN201911220952A CN110904916B CN 110904916 B CN110904916 B CN 110904916B CN 201911220952 A CN201911220952 A CN 201911220952A CN 110904916 B CN110904916 B CN 110904916B
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China
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guide
control
water
weir
water flow
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CN110904916A (en
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方创琳
樊蓓莉
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Institute of Geographic Sciences and Natural Resources of CAS
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Institute of Geographic Sciences and Natural Resources of CAS
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B1/00Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B15/00Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/10Devices for removing the material from the surface
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/02Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same

Abstract

The invention relates to an ecological control and guide structure for water flow dead corners of cities and city groups, which comprises at least two levels of control and guide weirs arranged on the water inlet side of the water flow dead corners in parallel, wherein the control and guide weirs are arranged in a staggered manner along the water flow direction and are gradually close to the shoreline, each control and guide weir is of a gabion mesh structure which is integrally wedge-shaped, a plurality of flow guide channels with the inner diameters gradually reduced along the water flow direction are arranged inside each control and guide weir, the outlet positions of the flow guide channels are close to the shoreline than the inlet, water flow guide and control plates are arranged on the circumferences or side edges of 1/3-1/2, close to the water center, of the outlet of each flow guide channel, and flaky or waste tiles are filled in the gabion mesh structure. The ecological control and guide structure of the invention can completely solve the problem of unsmooth water flow generated under the conventional water flow condition by guiding the water flow layer by layer and re-planning the water flow path, thereby obviously improving the environmental pollution of water flow dead angles and the landscape effect.

Description

Ecological control guide structure for water flow dead angles of cities and city groups
Technical Field
The invention relates to the field of river and lake water ecology and water environment treatment, in particular to an ecological control and guide structure for water flow dead angles of cities and city groups.
Background
The water body in the city and the city group is not only landscape with beautiful scene, but also has the functions of regulating and storing flood, protecting biological diversity, maintaining ecological balance, preserving fresh water resource, replenishing underground water, regulating climate and the like, and has good ecological, social, economic and environmental benefits. And the urban water has the characteristics of relatively simple aquatic ecosystem, relatively small water environment capacity, relatively poor self-purification capacity of the water and the like due to poor water mobility and the like, so that the ecological environment is quite fragile. The pollution load exceeds the self-purification capacity of the water body, the reduction of aquatic animals and plant species is easily caused, the water quality is deteriorated, the ecological function and landscape effect of the water body are seriously influenced, and the ecological deterioration is often difficult to treat and repair.
However, in recent years, along with rapid development of urbanization, development and modification strength of urban water bodies is gradually increased, but often, because landscape effect is pursued on one side, the design is not scientific enough, a water body shoreline is designed into an irregular shape, and is bent and bent, so that water flow is unsmooth, and water flow dead corners are easy to appear. The water body in the dead angle has poor mobility and cannot be replaced, various pollutants are deposited along with the delay of time, and finally the water quality is deteriorated and is diffused to the whole water body. The conventional water diversion measures used for purifying the water body and increasing the fluidity mainly depend on the artificial water circulation process, but the effect of improving the water quality of the water flow dead angle cannot be achieved finally.
At present, in order to solve the problem, mechanical water circulation and aeration equipment are usually arranged at the dead angle of the water flow, but the method consumes a large amount of energy on one hand, can only temporarily improve the problem on the other hand, has poor solution effect, and is difficult to realize the water flow circulation comprehensively.
Disclosure of Invention
The invention aims to solve the problems and provides an ecological control and guide structure for water flow dead corners of water bodies in cities and urban groups, so that water areas in the water flow dead corner areas can flow fully, and the environmental pollution and landscape effects of the water flow dead corners can be obviously improved.
In order to achieve the purpose, the invention provides an ecological control and guide structure for water flow dead corners of cities and urban groups, which comprises at least two stages of control and guide weirs arranged on the water incoming side of the water flow dead corners, wherein each stage of control and guide weir is arranged in parallel, the included angle between each stage of control and guide weir and the main water flow direction is 45-85 degrees, the control and guide weirs are gradually arranged close to the bank line along the water flow direction and are arranged in a staggered manner, the control and guide weirs are of a whole wedge-shaped gabion mesh structure, the top ends of the control and guide weirs are narrow, the bottom ends of the control and guide weirs are wide, a plurality of flow guide channels with gradually reduced inner diameters along the water flow direction are arranged in the control and guide weirs, the inlets of the flow guide channels are arranged on the water incoming side, the outlets of the flow guide channels are arranged on the water back side, the outlets of the flow guide channels are arranged close to the, the included angle between the water flow guide and control plate and the backwater side of the control and guide weir is 45-75 degrees, and flaky broken stones or waste tiles arranged in parallel to the water flow direction are filled in the gabion mesh structure of the control and guide weir.
Preferably, the dislocation length of the guide control weirs is 1/5-1/4 of the length of the guide control weirs, and the water flow speed between adjacent guide control weirs is larger than or equal to the main water flow speed.
Preferably, the width of the guide control weir is smaller than the length of the guide control weir, and the width of the guide control weir is 1-2 m.
Preferably, an included angle between the inclined edge of the water-facing side on the cross section of the control guide weir and the bottom edge of the tail part is 60-80 degrees, and an included angle between the inclined edge of the backwater side on the cross section of the control guide weir and the bottom edge of the tail part is about 90 degrees.
Preferably, the height of the top end of the guide control weir is 3-6 cm lower than the water level of the normal water level, the bottom end of the guide control weir is buried in a silt layer or a basal layer, the average width of the top end of the guide control weir is 20-30 cm, and the average width of the bottom end of the guide control weir is 50-70 cm.
Preferably, the vertical distance of the inlet of the diversion channel after the outlet is staggered is 10-20 cm, the diameter of the inlet of the diversion channel is 30-50 cm, and the diameter of the outlet of the diversion channel is 25-40 cm.
Preferably, the diversion channels are at least arranged into two layers, the top end of the highest diversion channel is 3-6 cm lower than the top end of the guide control weir, each layer of diversion channels are arranged at intervals of 5-10 cm, and the bottom end of the bottommost diversion channel is arranged at a position 20-30 cm above the sludge layer.
Preferably, the water flow guide and control plate is made of PVC and PE, and the length of the water flow guide and control plate is 25-35 cm.
Preferably, the porosity in the gabion mesh structure increases gradually from the centre of the water to the shoreline.
Preferably, the rear side of the last stage of control and guide weir is sequentially provided with a permeable dam body structure and submerged plants.
Preferably, the ecological control guide structure further comprises an accelerating weir arranged at the upstream of the first-stage control guide weir, the accelerating weir is a strip-shaped weir dam structure with a trapezoidal longitudinal section crossing the flowing direction of the water body, and the back water surface of the accelerating weir is an inclined surface with an included angle of 20-60 degrees
Based on the technical scheme, the invention has the advantages that:
the ecological control and guide structure for the water flow dead angles of the water bodies in cities and urban groups of the invention can completely solve the problem of unsmooth water flow generated under the conventional water flow condition by guiding the water flow layer by layer and re-planning the water flow path, thereby obviously improving the environmental pollution of the water flow dead angles and the landscape effect. The ecological control and guide structure of the invention does not need other external energy consumption, completely depends on the existing hydraulic conditions to carry out autonomous operation, saves energy, can efficiently complete the flow velocity control of water flow, enables the water area of the water flow dead corner area to fully flow, and obviously improves the environmental pollution of the water flow dead corner and the landscape effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic view of an ecological control structure;
FIG. 2 is a schematic cross-sectional view of a control guide weir;
FIG. 3 is a schematic longitudinal section of a control guide weir;
fig. 4 is a perspective view of a weir controlling device.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
The invention provides an ecological control and guide structure for water flow dead corners of cities and urban groups, which is shown in figures 1-4, wherein a preferred embodiment of the invention is shown. The ecological control guide structure is at least a 2-level structure, and is respectively a first-level control guide weir and a second-level control guide weir according to the water incoming direction, and the ecological control guide structure can be increased into a multi-level structure according to the water quantity and the size of a water flow unsmooth area.
As shown in fig. 1 and 2, the ecological guide control structure comprises at least two stages of guide control weirs 1 arranged on the incoming water side of a water flow dead angle 2, wherein each stage of guide control weir 1 is arranged in parallel, and the included angle between each stage of guide control weir 1 and a main water flow direction B is 45-85 degrees, the guide control weirs 1 are arranged along the water flow direction a and gradually approach a shoreline 3 in a staggered manner, the guide control weir 1 is a whole wedge-shaped gabion mesh structure 5, the top end of the guide control weir 1 is narrow and the bottom end of the guide control weir 1 is wide, a plurality of guide channels 7 with gradually reduced inner diameters along the water flow direction a are arranged in the guide weir 1, the inlets of the guide channels 7 are arranged on the water facing side 6, the outlets of the guide channels 7 are arranged on the back water side 9, the outlets of the guide channels are arranged closer to the shoreline 3 than the inlets, water flow guide control plates 8 are arranged on the circumferences or side edges of 1/3-1/2, which are close to the water centers of the outlets of the guide, and flaky broken stones or waste tiles arranged in a direction parallel to the water flow direction A are filled in the gabion mesh structure 5 of the control guide weir 1.
The direction of each stage of control guide weir 1 is parallel, the control guide weirs 1 are arranged in parallel, and the included angle between the control guide weirs 1 and the main water flow direction B is 45-85 degrees. The guide weir 1 is sequentially close to the shore line 3 from the first stage, and 1/5-1/4 with the length being the length of the guide weir 1 are sequentially staggered. Preferably, the dislocation length of the guide control weirs 1 is 1/5-1/4 of the length of the guide control weirs 1, and the water flow speed between adjacent guide control weirs 1 is greater than or equal to the main water flow speed. The width of each stage of the control guide weir 1 is positively correlated with the water flow speed, the width of the control guide weir 1 is smaller than the length of the control guide weir 1, and the width of the control guide weir 1 is 1-2 m.
As shown in fig. 2 to 4, the guide control weir 1 is a wedge-shaped structure, and one end of the guide control weir near the shore line is narrower, and the other end of the guide control weir extending to the center of water is wider. The long edge of the water-facing side 11 is a bevel edge which can increase the contact area of incoming water, thereby increasing the water guide amount. Preferably, an included angle between the oblique edge of the water facing side 6 on the cross section of the control guide weir 1 and the bottom edge of the tail part is 60-80 degrees, and an included angle between the oblique edge of the backwater side 9 on the cross section of the control guide weir 1 and the bottom edge of the tail part is about 90 degrees. The top end of the control guide weir 1 is 3-6 cm lower than the normal water level water surface, and the bottom end of the control guide weir is buried in a silt layer or a basal layer in order to keep the stability of the weir dam. The top end of the control guide weir 1 is narrow and the bottom end of the control guide weir 1 is wide, the average width of the top end of the control guide weir 1 is 20-30 cm, and the average width of the bottom end of the control guide weir 1 is 50-70 cm. The bottom surface is the surface of the control and guide weir 1 contacting the water bottom, and the top surface is the surface opposite to the bottom surface; the head of the guide control weir refers to the end close to the shoreline, and the tail of the guide control weir refers to the end far away from the shoreline and close to the center of water.
The control guide weir 1 is provided with a plurality of flow guide channels 7 along the water flow direction A, the inlet of the flow guide channel 7 is arranged on the water-facing side 6, the outlet of the flow guide channel 7 is arranged on the backwater side 9, and the outlet is positioned close to the shoreline 3. As shown in FIG. 4, the vertical distance of the inlet of the diversion channel 7 after the outlet is staggered is 10-20 cm, the opening of the diversion channel 7 is circular, the diameter of the opening side of the inlet is 30-50 cm, the diameter of the opening side of the outlet is reduced to 25-40 cm, and water flow can play a role in increasing the flow velocity of water flow after passing through the channel with the gradually reduced caliber.
Because surface layer water velocity of flow is fast than deep water velocity of flow, consequently set up different water conservancy diversion passageways 7 respectively and pass through in order to supply rivers, the passageway should set up 2 layers at least, and the depth of water is then set up the multilayer passageway deeply. Preferably, the diversion channels 7 are arranged into at least two layers, the top end of the diversion channel 7 in the highest layer is 3-6 cm lower than the top end of the control and guide weir 1, the number of the channels arranged in deep water is more than that of the channels arranged in the surface layer, and more water flows can pass through the channels more quickly. The following diversion channels 7 on each layer are arranged at intervals of 5-10 cm, and the bottom end of the diversion channel 7 on the bottommost layer is arranged at the position of 20-30 cm above the sludge layer. Therefore, when water flows with different flow rates pass through different flow guide channels 7, the water flows forwards independently, and the speed reduction caused by the vertical flow of the water flows is avoided. The quantity of the channels close to the bank slope is more than that of the channels close to the water central channel, so that more water flows can pass through the channels more quickly.
As shown in FIG. 2, a water flow guiding and controlling plate 8 is arranged on the circumference or side edge of one side 1/3-1/2 of the outlet of the flow guiding channel 7 close to the center of water, and the included angle between the water flow guiding and controlling plate 8 and the backwater side 9 of the guiding and controlling weir 1 is 45-75 degrees. The water flow guide and control plate 8 is made of materials with strong toughness and resistance, such as PVC, PE and the like, and has the length of 25-35 cm.
The rest parts of the control and guide weir 1 except the guide channel 7 are provided with a gabion mesh structure 5. The gabion net in the gabion net structure 5 is made of materials with high corrosion resistance, high strength and ductility, flaky gravel or waste tiles are filled inside, the flaky fillers are filled along the water flow direction A, large gravel or tiles are filled close to the center of water, small gravel or tiles are filled close to the water bank, the porosity in the gabion net is gradually increased from the water to the 3 directions of the water bank line, about 30% -60% of water flows pass through the holes, and the water flows to a target water area through the guiding and controlling of the holes. The control guide weir 1 is of a vertical unit type structure, so that the porosity can be conveniently adjusted according to water flow conditions.
Further, the rear side of last level accuse guide weir 1 is equipped with the dam body structure 4 and the submerged plant that permeates water in proper order, the dam body structure 4 that permeates water sets up to the lower structure of permeating water of transmissivity, can make most rivers upwards walk around the dam body on the one hand, reach near bank line waters, play the reposition of redundant personnel effect, on the other hand limited water permeability can prevent near dam body harmony water again, the influence is upwards rivers to pass through, the dam body structure 4 that permeates water is close to 3 one ends of bank line and sets up to the chevron shape, the directional bank line 3 in top, play the effect of supplementary accuse guide current direction. On one hand, the multiple rows of submerged plants can dredge water flow and stabilize the flow speed, and on the other hand, the multiple rows of submerged plants can purify water quality again.
The ecological control guide structure further comprises an accelerating weir arranged at the upstream of the first-stage control guide weir 1, the accelerating weir is a strip-shaped weir dam structure with a trapezoidal longitudinal section crossing the flowing direction of a water body, the back water surface of the accelerating weir is an inclined surface with an included angle of 20-60 degrees, the included angle of a bank slope at one side close to the water flow dead angle 2 is the largest, and the included angle of a main water flow region is gradually reduced.
The upstream water flows through the accelerating weir to form a water level drop, the water flow speed is increased, and when the upstream water continuously passes through the primary control guiding weir, the water flow is divided into at least 3 parts. The part closest to the shoreline flows along the shoreline due to the blocking of the control and guide weir, and accelerates to flow forward into the region with unsmooth water flow, and the part closest to the center of the water flows around the control and guide weir to flow forward into the main water flow. The rest water flows passing through the control guide weir are divided into two types, one type of water flows to the next-stage control guide weir under the pushing of the guide plate through the guide channel or directly flows into the left water area, and the other type of water flows to the next-stage control guide weir or continuously flows forwards to the main water area through the gabion mesh filling pores.
After the water flow passes through the primary control guide weir in sequence, most of the water flow is lifted to enter a target water area, wherein most of the water flow passes through the front end of the diversion dam body, the target water area is fully flowable, and the rest of the water flow enters the right water area through the pores of the main diversion dam. The multi-stage control guide weir can convey more water flow on one hand, and can lift the water flow to the interior of a target water area stage by stage on the other hand, and the water flow passes through the front end of the flow dividing system. Therefore, the water flow flowing into the target water area comprises various directions and different flow rates, the afflux water flow can increase the water body to be diffused to the whole water area, the mixing of the water body is promoted, the self-purification of the water body is increased, and the dead angle phenomenon is favorably eliminated.
The ecological control and guide structure for the urban water flow dead angle of the invention can completely solve the problem of unsmooth flow generated under the conventional flow condition by guiding the flow layer by layer and re-planning the flow path, thereby obviously improving the environmental pollution of the water flow dead angle and the landscape effect. The ecological control and guide structure of the invention does not need other external energy consumption, completely depends on the existing hydraulic conditions to carry out autonomous operation, saves energy, can efficiently complete the flow velocity control of water flow, enables the water area of the water flow dead corner area to fully flow, and obviously improves the environmental pollution of the water flow dead corner and the landscape effect.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an ecological accuse of a water rivers dead angle is led structure for city and urban mass, its characterized in that: the device comprises at least two stages of control guide weirs (1) arranged on the incoming water side of a water flow dead angle (2), wherein each stage of control guide weir (1) is arranged in parallel, the included angle between each stage of control guide weir (1) and the main water flow direction (B) is 45-85 degrees, the control guide weirs (1) are gradually close to a shoreline (3) and are arranged in a staggered manner along the water flow direction (A), the control guide weirs (1) are integrally wedge-shaped gabion mesh structures (5), the top ends of the control guide weirs (1) are narrow and wide, a plurality of flow guide channels (7) with the inner diameters gradually reduced along the water flow direction (A) are arranged in the control guide weirs (1), the inlets of the flow guide channels (7) are arranged on the water facing side (6), the outlets of the flow guide channels (7) are arranged on the water backing side (9), the outlets of the flow guide channels are close to the shoreline (3) than the inlets, and water flow guide control plates (8) are, the upward included angle between the water flow guide and control plate (8) and the backwater side (9) of the control and guide weir (1) is 45-75 degrees, and flaky broken stones or waste tiles arranged in a direction parallel to the water flow direction (A) are filled in the gabion mesh structure (5) of the control and guide weir (1).
2. The ecological control structure of claim 1, characterized in that: the dislocation length of the guide weir (1) is 1/5-1/4 of the length of the guide weir (1), and the water flow speed between adjacent guide weirs (1) is greater than or equal to the main water flow speed.
3. The ecological control structure of claim 1, characterized in that: the width of the control guide weir (1) is smaller than the length of the control guide weir (1), and the width of the control guide weir (1) is 1-2 m.
4. The ecological control structure of claim 1, characterized in that: the included angle between the inclined edge of the water facing side (6) on the cross section of the control guide weir (1) and the bottom edge of the tail part is 60-80 degrees, and the included angle between the inclined edge of the backwater side (9) on the cross section of the control guide weir (1) and the bottom edge of the tail part is 90 degrees.
5. The ecological control structure of claim 1, characterized in that: the top end of the control guide weir (1) is 3-6 cm lower than the water surface of a normal water level, the bottom end of the control guide weir (1) is buried in a silt layer or a substrate layer, the average width of the top end of the control guide weir (1) is 20-30 cm, and the average width of the bottom end of the control guide weir (1) is 50-70 cm.
6. The ecological control structure of claim 1, characterized in that: the vertical distance of the inlet of the diversion channel (7) after the outlet is staggered is 10-20 cm, the diameter of the inlet of the diversion channel (7) is 30-50 cm, and the diameter of the outlet is 25-40 cm.
7. The ecological control structure of claim 1, characterized in that: the flow guide channels (7) are at least arranged into two layers, the top end of the highest layer of flow guide channel (7) is lower than the top end of the control guide weir (1) by 3-6 cm, each layer of flow guide channel (7) is arranged at intervals of 5-10 cm, and the bottom end of the lowest layer of flow guide channel (7) is arranged at a position 20-30 cm above the silt layer.
8. The ecological control structure of claim 1, characterized in that: the water flow guide and control plate (8) is made of PVC or PE, the length of the water flow guide and control plate is 25-35 cm, and the porosity of the gabion mesh structure (5) is gradually increased along the direction from the center of water to the shoreline (3).
9. The ecological control structure of claim 1, characterized in that: the rear side of the last stage of control guide weir (1) is sequentially provided with a permeable dam body structure (4) and submerged plants.
10. The ecological control structure of claim 1, characterized in that: the ecological control guide structure also comprises an accelerating weir arranged at the upstream of the first-stage control guide weir (1), the accelerating weir is a strip-shaped weir dam structure with a trapezoidal longitudinal section transverse to the flowing direction of the water body, and the back water surface of the accelerating weir is an inclined surface with an included angle of 20-60 degrees.
CN201911220952.3A 2019-12-03 2019-12-03 Ecological control guide structure for water flow dead angles of cities and city groups Active CN110904916B (en)

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CN110904916B true CN110904916B (en) 2020-10-16

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771019A (en) * 1993-06-28 1995-03-14 Tetsuo Nishida Removing method of dregs and/or oily materials in water to be treated and preliminary treating device and water purifier by use thereof
CN1778689A (en) * 2004-11-16 2006-05-31 崔根镐 Method for recovering underwater ecosystem of a river
CN102219304A (en) * 2011-02-23 2011-10-19 河海大学 Method for ecologically improving water quality of water delivery type lake
CN107938592A (en) * 2017-12-27 2018-04-20 北京东方利禾景观设计有限公司 A kind of ecological reconstruction structure of linear pattern city river
CN109056648A (en) * 2018-09-07 2018-12-21 重庆大学产业技术研究院 Strengthen water conservancy diversion filtering ecology and cuts dirty protective slope structure and system
CN109778798A (en) * 2019-03-12 2019-05-21 黄河勘测规划设计研究院有限公司 Multi-stage porous pipe weir shunts and warps method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771019A (en) * 1993-06-28 1995-03-14 Tetsuo Nishida Removing method of dregs and/or oily materials in water to be treated and preliminary treating device and water purifier by use thereof
CN1778689A (en) * 2004-11-16 2006-05-31 崔根镐 Method for recovering underwater ecosystem of a river
CN102219304A (en) * 2011-02-23 2011-10-19 河海大学 Method for ecologically improving water quality of water delivery type lake
CN107938592A (en) * 2017-12-27 2018-04-20 北京东方利禾景观设计有限公司 A kind of ecological reconstruction structure of linear pattern city river
CN109056648A (en) * 2018-09-07 2018-12-21 重庆大学产业技术研究院 Strengthen water conservancy diversion filtering ecology and cuts dirty protective slope structure and system
CN109778798A (en) * 2019-03-12 2019-05-21 黄河勘测规划设计研究院有限公司 Multi-stage porous pipe weir shunts and warps method

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