CN211849230U - Flexible flood diversion structure for protecting submerged plants from being scoured and damaged - Google Patents
Flexible flood diversion structure for protecting submerged plants from being scoured and damaged Download PDFInfo
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- CN211849230U CN211849230U CN202020281505.0U CN202020281505U CN211849230U CN 211849230 U CN211849230 U CN 211849230U CN 202020281505 U CN202020281505 U CN 202020281505U CN 211849230 U CN211849230 U CN 211849230U
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Abstract
The utility model discloses a flexible flood diversion structure for protecting submerged plant to avoid washout destruction, including being used for fixing a plurality of counter weight bases at the lakebed, all be provided with the rigidity member on the counter weight basis, be connected with the flexible enclosure that is used for keeping apart flood passage and main part lake region between two adjacent rigidity members. The material is easy to obtain and low in cost due to the adoption of the high-molecular flexible material. The high polymer flexible material can keep certain strength under the impact of a high-flow-rate water body without deformation or damage, is not easy to degrade and rot and easy to recover, and cannot cause secondary pollution to the water body.
Description
Technical Field
The utility model relates to a lake field, concretely relates to a flexible flood diversion structure for protecting submerged plant to avoid washout destruction.
Background
The eutrophication of lakes and reservoirs leads to the increase of phytoplankton in the water body and the extinction of submerged plants. The recovery of submerged plants still lags behind a considerable time after the exogenous pollutants are reduced, and the recovery of submerged plants is crucial to the long-term benefits of shallow lake remediation. The submerged plant is mainly repaired by natural repair and is repaired by artificial repair. The restoration of the submerged plants plays an important role in improving the ecological environment of shallow lakes and promoting the healthy development of the lakes.
Part of large-scale landscape lakes are developed in the original flood storage and stagnation areas, and bear urban landscape and ecological regulation tasks in the non-flood season, and still bear certain flood discharge and flood diversion tasks in the flood season. Flood with high flow rate, high sediment and high turbidity enters the lake body, and mainly has three influences on submerged plant communities: 1. the high-flow-rate water body can wash the lake bottom, so that the submerged plants are peeled off from the lake bottom; 2. a large amount of pollutants are brought to the landscape lake, and the water quality is influenced; 3. the growth of submerged plants is influenced by the water body with high silt and high turbidity, and the submerged plant community can die due to untimely treatment.
At present, the following scheme is mainly adopted for solving the problem that submerged plants die when flood floodwater enters a lake in a flood season: the flocculant is used for rapidly reducing the turbidity of the water body and ensuring the growth of submerged plants. For submerged plant communities damaged by scouring, more artificial reseeding ways are adopted to restore the communities. However, these two methods have their own disadvantages: the addition of the flocculating agent can cause secondary pollution, and the manual seed supplementing mode is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
Go into the lake based on flood season flood and cause the dead problem of submerged plant, the utility model aims to provide a flexible flood diversion structure for protecting submerged plant and avoid scouring out the destruction, the submerged plant that causes when solving view lake and undertake the flood diversion task is destroyed the problem.
The utility model discloses a following technical scheme realizes:
the utility model provides a flexible flood diversion structure for protecting submerged plant avoids erodeing and destroy, is used for fixing a plurality of counter weight bases at the lakebed including being used for, all is provided with the rigidity member on the counter weight basis, is connected with the flexible enclosure who is used for keeping apart flood passage and main part lake area between two adjacent rigidity member.
Furthermore, when the structure is used, the balance weight foundation is fixed on the lake bottoms on the two sides of the flood channel zone, the lower ends of the rigid rod pieces are fixed on the balance weight foundation, the flexible barriers are connected between the two adjacent rigid rod pieces and can support the flexible barriers, and the flexible barriers are arranged on the two side faces of the flood channel zone and can be separated from the main body lake area.
Compared with the existing structure, the structure can not cause secondary pollution, manual reseeding is not needed, the submerged plant is protected, manpower and material resources are effectively saved, and the use efficiency can be effectively improved.
Moreover, the flexible enclosure of the structure is made of macromolecule non-woven fabric. The strength of the macromolecule non-woven fabric is larger than or equal to the impact force generated by flood, and the lower end of the macromolecule non-woven fabric is fixed on the lake bottom through U-shaped rivets. Thus, flood with high flow speed, high turbidity and high sand content can be prevented from scouring and damaging submerged plants through the lower end of the flexible enclosure.
Furthermore, the upper end of the flexible enclosure is provided with a plurality of enclosure floating balls which are used for providing upward buoyancy for the flexible enclosure and marking the position of the flexible enclosure. The floating ball structure can provide certain buoyancy for the flexible enclosure, and then can guarantee that the flexible enclosure can be perpendicular to the water surface, so as to ensure that the flexible enclosure can perform normal functions. The use efficiency is improved.
Specifically, the rigid rod piece is connected with the counterweight foundation through the expansion bolt assembly. The counterweight foundation is made of commercial concrete, and is formed by pouring the commercial concrete and can be realized through a prefabricated or cast-in-place structure. The rigid rod piece is made of acrylic or steel bars or stainless steel materials.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model relates to a flexible flood diversion structure for protecting submerged plant to avoid erodeing the destruction adopts the preparation of polymer flexible material, and the material is easy and low in cost. The high polymer flexible material can keep certain strength under the impact of a high-flow-rate water body without deformation or damage, is not easy to degrade and rot and easy to recover, and cannot cause secondary pollution to the water body.
Meanwhile, the flexible enclosure is fixed at the bottom of the lake bed through the U-shaped rivets, so that flood is prevented from entering the main lake area from the bottom. When the landscape lake in the flood season has flood discharge requirements, the flexible enclosure structure has weak water permeability, the flood discharge channel is isolated from the main body lake region, relatively independent flood discharge paths are formed, flood with high flow rate, high turbidity and high sand content is prevented from diffusing to the main body lake region, submerged plants in the main body lake region are prevented from being stripped from the lake bed due to high-speed water flow scouring, and meanwhile pollution to the main body lake region is reduced.
Moreover, the flood-discharging device is simple in structure, does not need to be maintained manually after flood discharging, is more convenient to use and is more convenient to use for a long time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments 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 principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the structure in use.
Reference numbers and corresponding part names in the drawings:
1-counterweight foundation, 2-expansion bolt assembly, 3-rigid rod piece, 4-enclosure floating ball, 5-flexible enclosure, 6-main lake shoreline, 7-design elevation surface, 8-U-shaped rivet, 9-flood passage, 10-flood flow direction, 11-deep water region submerged plant, 12-shallow water region submerged plant and 13-emergent plant.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in figure 1, the utility model relates to a flexible flood diversion structure for protecting submerged plant to avoid washout destruction, including being used for fixing a plurality of counter weight basis 1 at the lakebed, all be provided with rigid rod piece 3 on the counter weight basis 1, be connected with between two adjacent rigid rod pieces 3 and be used for keeping apart the flexible enclosure 5 of flood passage and main part lake region. Wherein, the flexible enclosure 5 is a macromolecule non-woven fabric. The lower end of the flexible enclosure 5 is fixed on the lake bottom through a U-shaped rivet 8. The upper end that the flexible wall 5 that encloses is provided with a plurality of fender floater 4 that enclose, enclose fender floater 4 and be used for enclosing for the flexibility and separate 5 and provide upwards buoyancy to the flexible position that encloses 5 that encloses of sign. The rigid rod 3 is connected with the counterweight foundation 1 through the expansion bolt assembly 2. The counterweight foundation 1 is commercial concrete. The rigid rod 3 is made of acrylic or steel bars or stainless steel materials.
When the counter weight foundation is used, the counter weight foundation 1 is formed by pouring commercial concrete and can be realized through a prefabricated or cast-in-place structure. The poured counterweight foundation 1 is fixed on the lake bottom on the side surface of the flood passage 9, and is compacted and backfilled to the designed elevation surface 7 by using undisturbed soil. The connecting hook on the lower ends of the counterweight foundation 1 and the flexible enclosure 5 is fixed by an expansion screw and an expansion bolt, so that the flexible enclosure 5 is fixed on the counterweight foundation 1.
The rigid rod 3 is also fixed on the counterweight foundation 1 by expansion screws and expansion bolts and is used for supporting the flexible enclosure 5 so as to maintain the flood diversion performance of the flexible enclosure 5. The enclosure floating ball 4 is connected to the upper end of the flexible enclosure 5 and used for providing upward buoyancy and marking the enclosure position.
Example 2
On the basis of embodiment 1, the flexible enclosure 5 is made of polymer non-woven fabric, the strength of which is greater than or equal to the impact force generated by flood, and the flexible enclosure is connected to the counterweight foundation 1 through a connecting hook and an expansion bolt.
The U-shaped rivet 8 is made of PVC or metal materials, and fixes the flexible enclosure 5 on the covering layer of the lake bottom backfilled with undisturbed soil, so that the flood on the bottom layer is prevented from entering the main lake area. The length of the rivet is determined by the thickness of the bottom covering layer and the strength of the soil body.
The enclosure floating ball 4 is made of light PVC material and has certain shock resistance. In addition, enclose fender floater 4 and can provide certain buoyancy, guarantee that flexible enclosure 5 can be perpendicular to the surface of water to ensure that flexible enclosure 5 exerts its normal function.
The rigid rods 3 are used for supporting the flexible enclosures 5, and the materials include but are not limited to acrylic, steel bars, stainless steel. The spacing distance is determined by the type of material, the flexible enclosure strength, the flood flow, the lake depth and the like.
Example 3
FIG. 2 is a large-scale landscape lake developed from a stagnant flood area in a certain city, and the average flow of the main river into the lake is 0.3m for many years3And/s, which is used for supplementing the water lost by daily evaporation and permeation of the lake. On the other hand, the lake adopts a submerged plant restoration method to remove pollutants and nutritive salts in the water body, improves the transparency of the water body and forms a good green landscape of the clear bank. The flood diversion isolation device provided by the embodiment is arranged for meeting flood diversion in flood season and not damaging submerged plant communities in lake regions.
The flood passage 9 is arranged between two submerged plants 11 in the deep water area, the submerged plants 12 in the shallow water area are arranged outside the submerged plants 11 in the deep water area, emergent aquatic plants 13 are arranged outside the submerged plants 12 in the shallow water area, and the main lake shoreline 6 is arranged outside the emergent aquatic plants 13. The flood flow direction 10 is shown in fig. 2.
This structure sets up on the both sides face of flood passage 9, contacts with two deep water district submerged plant 11 for shelter from it. Wherein the counterweight foundation 1 is made of concrete materials and is arranged according to a designed flood diversion line at a certain interval, and the counterweight foundation 1 is buried below the designed elevation surface 7 of the lake bottom and is rolled and covered by undisturbed soil. The flexible enclosure 3 is fixed on the counterweight foundation 1 by the expansion screws. The flexible enclosure 5 forms a flood diversion channel on the flood passage 9 through the rigid support provided by the rigid rod 3 and the buoyancy provided by the light PVC material enclosing floating ball 4.
In order to allow high turbidity, high sand content floods to enter the main lake area from the lower crevices of the flexible enclosures 5, the underside of the flexible enclosures 5 are fixed to the lake bottom by means of elongated U-shaped rivets 8. In flood season, flood with high turbidity and high sand content passes through the flood diversion channel 9 and is discharged to a downstream flood-running river channel without influencing submerged plants in the main lake region.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a flexible flood diversion structure for protecting submerged plant avoids erodeing and destroy which characterized in that, all is provided with rigid rod spare (3) including being used for fixing a plurality of counter weight basis (1) at the lake bottom on counter weight basis (1), is connected with between two adjacent rigid rod spare (3) and is used for keeping apart flexible barricade (5) of flood passage and main part lake region.
2. A flexible flood distribution structure for protecting submerged plants from scour damage according to claim 1, wherein the flexible enclosures (5) are of non-woven polymer fabric.
3. A flexible flood distribution structure for protecting submerged plants from scour damage according to claim 1, wherein the lower end of the flexible enclosure (5) is fixed to the lake bottom by U-shaped rivets (8).
4. A flexible flood distribution structure for protecting submerged plants from scour damage according to claim 1, wherein the upper end of the flexible enclosure (5) is provided with a plurality of enclosure floating balls (4), the enclosure floating balls (4) are used for providing upward buoyancy for the flexible enclosure (5) and marking the position of the flexible enclosure (5).
5. A flexible flood diversion structure for protecting submerged plants from scour damage according to claim 1, wherein the rigid rods (3) are connected to the counterweight base (1) by expansion bolt assemblies (2).
6. A flexible flood distribution structure for protecting submerged plants from scour damage according to claim 1, wherein the counterweight foundation (1) is commercial concrete.
7. A flexible flood distribution structure for protecting submerged plants from scour damage according to claim 1, wherein the rigid rods (3) are acrylic or steel bars or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020281505.0U CN211849230U (en) | 2020-03-09 | 2020-03-09 | Flexible flood diversion structure for protecting submerged plants from being scoured and damaged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020281505.0U CN211849230U (en) | 2020-03-09 | 2020-03-09 | Flexible flood diversion structure for protecting submerged plants from being scoured and damaged |
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| CN211849230U true CN211849230U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020281505.0U Active CN211849230U (en) | 2020-03-09 | 2020-03-09 | Flexible flood diversion structure for protecting submerged plants from being scoured and damaged |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045134A (en) * | 2021-03-24 | 2021-06-29 | 河海大学 | Double-layer enclosure system and method suitable for river ecological restoration pretreatment |
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2020
- 2020-03-09 CN CN202020281505.0U patent/CN211849230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045134A (en) * | 2021-03-24 | 2021-06-29 | 河海大学 | Double-layer enclosure system and method suitable for river ecological restoration pretreatment |
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