CN113430994A - Ecological concrete revetment structure for urban river bank slope improvement - Google Patents
Ecological concrete revetment structure for urban river bank slope improvement Download PDFInfo
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- CN113430994A CN113430994A CN202110746178.0A CN202110746178A CN113430994A CN 113430994 A CN113430994 A CN 113430994A CN 202110746178 A CN202110746178 A CN 202110746178A CN 113430994 A CN113430994 A CN 113430994A
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- concrete
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- bank slope
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
Abstract
The invention discloses an ecological concrete revetment structure for urban river bank slope renovation, and relates to the technical field of ecological hydraulic engineering. The concrete structure comprises a concrete coping, a concrete cushion layer and a precast concrete frame; the precast concrete frame is stacked on the concrete cushion layer from bottom to top in sequence, and the precast concrete frame includes framework, ecological concrete and inverted filter. The invention is in an upright type, thereby not only ensuring the stability of the revetment, but also not increasing the occupied land, reducing the engineering construction difficulty and saving the engineering investment.
Description
Technical Field
The invention relates to the technical field of ecological water conservancy projects, in particular to an ecological concrete revetment structure for treating bank slopes of river channels in urban areas.
Background
The conventional revetment is used for meeting basic functional requirements of river channels such as flood control, waterlogging drainage, diversion, shipping and the like, the river channel revetment which is made of hard materials such as concrete, block stones and the like is mostly adopted for controlling the shape of the river channels, the ecological property and the landscape property are poor, along with the deep mind of the ecological river control concept, the requirements for the design of the river channel revetment are changed from meeting the basic functional requirements to meeting the comprehensive functional requirements of flood control, ecology, landscape and the like, and particularly for the regulation of urban river channels, the exploration of a novel revetment structural form integrating flood control, ecology and landscape into a whole is particularly necessary.
The chinese patent application No. 201810061649.2 entitled "ecological modification method of hard concrete channel and ecological hard concrete channel thereof" is only applicable to hard bank slopes with relatively slow bank slopes, and is difficult to implement for modifying upright retaining walls with relatively large slopes.
The chinese patent application No. 201610232108.2, entitled "an ecological damaged revetment repair structure", only describes the repair of revetment, and does not design the restoration of ecological function of revetment.
In the application No. 201811306927.2, the three zones (the strengthening treatment zone, the emergent aquatic plant purification zone and the submerged plant purification zone) need to occupy more water cross sections, and have a certain adverse effect on river flood control with small width.
Therefore, it is necessary to develop an ecological concrete revetment structure for treating bank slopes of river channels in urban areas, which can save engineering investment, improve ecological functions of river channels and improve landscape effects of river banks while meeting flood control safety of river channels.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide an ecological concrete revetment structure for urban river bank slope renovation.
In order to achieve the purpose, the technical scheme of the invention is as follows: a ecological concrete shore protection structure for urban area river bank slope renovation, its characterized in that: the prefabricated concrete frame comprises a concrete coping positioned at the bank top, a concrete cushion layer positioned at the river bottom, and a plurality of prefabricated concrete frames positioned between the concrete coping and the concrete cushion layer;
the precast concrete frames are sequentially stacked on the concrete cushion layer from bottom to top, and each precast concrete frame comprises a frame body fixedly connected with a rear soil body through a geogrid, ecological concrete positioned in the frame body and a reverse filter layer positioned in the ecological concrete; the hygrophytes are planted on the side of the ecological concrete facing the river.
In the technical scheme, a handrail is arranged on the concrete coping; and a riprap toe guard is arranged on the river side of the precast concrete frame at the bottom layer.
In the technical scheme, the precast concrete frame is formed by pouring C concrete, and is 0.4m long, 0.3m wide and 0.3m high.
In the technical scheme, the ecological concrete is formed by cementing porous rocks, biological organic fertilizer and cultivation soil which are used as raw materials by adopting a cement cementing material, and the porosity is 30%.
In the technical scheme, the reverse filter layer is graded crushed stone.
In the technical scheme, the concrete cushion is cast in situ through C25 concrete, and the thickness of the concrete cushion is 0.2 m; the concrete coping is cast in situ by C25 concrete, and the thickness of the concrete coping is 0.15 m.
In the technical scheme, the riprap foot protector adopts the block stone, and the grain size of the block stone is 0.1-0.3 m.
In the technical scheme, the tensile strength of the geogrid is not less than 30 kN/m.
In the technical scheme, the handrail is a wood-like handrail and is 1.2m high.
In the technical scheme, the hygrophytes are rush, Chinese lobelia and cuckoo.
Compared with the prior art, the invention has the following advantages:
1) the invention is in an upright type, thereby not only ensuring the stability of the revetment, but also not increasing the occupied land, reducing the engineering construction difficulty and saving the engineering investment.
2) The invention adopts the structural style of filling the ecological concrete in the precast concrete frame, the material is close to nature, the gap is favorable for water and soil exchange, the aquatic plant growth and animal inhabitation are favorable, and the ecological landscape effect is good.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of a precast concrete frame.
Fig. 3 is a side view of a precast concrete frame.
Fig. 4 is a top view of a precast concrete frame.
The concrete-based ecological building method comprises the following steps of 1-concrete topping, 11-railings, 2-concrete cushion layers, 3-precast concrete frames, 31-frame bodies, 32-ecological concrete, 33-inverted filter layers, 34-riprap foot protectors, 4-geogrids and 5-hygrophytes.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: a ecological concrete shore protection structure for urban area river bank slope renovation, its characterized in that: the concrete-filled river bottom precast concrete comprises a concrete press top 1 positioned on the top of a bank, a concrete cushion layer 2 positioned on the bottom of a river, and a plurality of precast concrete frames 3 positioned between the concrete press top 1 and the concrete cushion layer 2;
the precast concrete frames 3 are sequentially stacked on the concrete cushion layer 2 from bottom to top, and each precast concrete frame 3 comprises a frame body 31 fixedly connected with a rear soil body through a geogrid 4, ecological concrete 32 positioned in the frame body 31 and a reverse filter layer 33 positioned in the ecological concrete 32; the hygrophytes 5 are planted on the side of the eco-concrete 32 facing the river.
The concrete coping 1 is provided with a railing 11; the bottom precast concrete frame 3 is provided with a riprap toe guard 34 on the river side.
The precast concrete frame 3 is formed by pouring C25 concrete, and is 0.4m long, 0.3m wide and 0.3m high.
The ecological concrete is formed by cementing porous rock, biological organic fertilizer and cultivation soil which are used as raw materials by adopting a cement cementing material, and the porosity is 30%.
The inverted filter layer 33 is graded crushed stone.
The concrete cushion layer 2 is cast in situ through C25 concrete, and the thickness is 0.2 m; the concrete coping 1 is cast in situ by C25 concrete and has the thickness of 0.15 m.
The riprap foot protector 34 adopts block stones with the grain size of 0.1-0.3 m.
The geogrid 4 can be a plastic geogrid, a steel-plastic geogrid, a glass fiber geogrid and a polyester warp-knitted polyester geogrid, and the tensile strength is not less than 30 kN/m.
The railing 11 is a wood-like railing and is 1.2m high.
The hygrophytes 5 are rush, Chinese lobelia and buttercup.
Other parts not described belong to the prior art.
Claims (10)
1. A ecological concrete shore protection structure for urban area river bank slope renovation, its characterized in that: the concrete-filled river bottom precast concrete comprises a concrete press top (1) positioned on the top of a bank, a concrete cushion layer (2) positioned on the bottom of a river, and a plurality of precast concrete frames (3) positioned between the concrete press top (1) and the concrete cushion layer (2);
the precast concrete frames (3) are sequentially stacked on the concrete cushion (2) from bottom to top, and each precast concrete frame (3) comprises a frame body (31) fixedly connected with a rear soil body through a geogrid (4), ecological concrete (32) positioned in the frame body (31), and a reverse filter layer (33) positioned in the ecological concrete (32); the hygrophytes (5) are planted on the side of the ecological concrete (32) close to the river.
2. The ecological concrete revetment structure for urban river bank slope renovation according to claim 1, wherein: a railing (11) is arranged on the concrete coping (1); the river-facing side of the precast concrete frame (3) at the bottom layer is provided with a riprap toe guard (34).
3. The ecological concrete revetment structure for urban river bank slope renovation according to claim 2, wherein: the precast concrete frame (3) is formed by pouring C25 concrete, and is 0.4m long, 0.3m wide and 0.3m high.
4. The ecological concrete revetment structure for urban river bank slope renovation according to claim 3, wherein: the ecological concrete is formed by cementing porous rock, biological organic fertilizer and cultivation soil which are used as raw materials by adopting a cement cementing material, and the porosity is 30%.
5. The ecological concrete revetment structure for urban river bank slope renovation according to claim 4, wherein: the inverted filter layer (33) is graded crushed stone.
6. The ecological concrete revetment structure for urban river bank slope renovation according to claim 5, wherein: the concrete cushion layer (2) is cast in situ through C25 concrete, and the thickness of the concrete cushion layer is 0.2 m; the concrete coping (1) is cast in situ by C25 concrete and has the thickness of 0.15 m.
7. The ecological concrete revetment structure for urban river bank slope renovation according to claim 6, wherein: the riprap banket (34) adopts block stone with the grain diameter of 0.1-0.3 m.
8. The ecological concrete revetment structure for urban river bank slope renovation according to claim 7, wherein: the tensile strength of the geogrid (4) is not less than 30 kN/m.
9. The ecological concrete revetment structure for urban river bank slope renovation according to claim 8, wherein: the railing (11) is a wood-like railing and is 1.2m high.
10. The ecological concrete revetment structure for urban river bank slope renovation according to claim 9, wherein: the hygrophytes (5) are rush, Chinese lobelia and buttercup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746178.0A CN113430994A (en) | 2021-07-01 | 2021-07-01 | Ecological concrete revetment structure for urban river bank slope improvement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746178.0A CN113430994A (en) | 2021-07-01 | 2021-07-01 | Ecological concrete revetment structure for urban river bank slope improvement |
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| CN113430994A true CN113430994A (en) | 2021-09-24 |
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| CN202110746178.0A Pending CN113430994A (en) | 2021-07-01 | 2021-07-01 | Ecological concrete revetment structure for urban river bank slope improvement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323986A (en) * | 2022-07-22 | 2022-11-11 | 上海二十冶建设有限公司 | Combined revetment construction method for river channel in landscape area |
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2021
- 2021-07-01 CN CN202110746178.0A patent/CN113430994A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323986A (en) * | 2022-07-22 | 2022-11-11 | 上海二十冶建设有限公司 | Combined revetment construction method for river channel in landscape area |
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