CN111208278B - Artificial simulation vegetation fixing device - Google Patents
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- CN111208278B CN111208278B CN202010059298.9A CN202010059298A CN111208278B CN 111208278 B CN111208278 B CN 111208278B CN 202010059298 A CN202010059298 A CN 202010059298A CN 111208278 B CN111208278 B CN 111208278B
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Abstract
The invention discloses a fixing device for artificial simulated vegetation, which comprises a lower pressing plate, an emergent vegetation positioning plate, a submerged vegetation positioning plate, an emergent vegetation simulation column, a submerged vegetation simulation column, positioning columns, a glass water tank and elastic fixing belts, wherein the emergent vegetation positioning plate and the submerged vegetation positioning plate are respectively placed outside the upper edge and the bottom plate of the water tank and positioned by 4 positioning columns, and then the lower pressing plate, the emergent vegetation positioning plate, the glass water tank and the submerged vegetation positioning plate are sequentially fixed from the front end to the rear end by 2 elastic fixing belts. The method is used for simulating the arrangement mode of vegetation and simulating submerged and emergent vegetation, and is used for researching the movement and transportation conditions of water and sand under different vegetation conditions. The conditions required by the test can be simply, conveniently and accurately obtained.
Description
Technical Field
The invention relates to a technology for a fixed bed erosion test of slope erosion, in particular to a fixing device for artificial simulated vegetation.
Background
The arrangement of vegetation will significantly affect hydrodynamic properties and sand-holding capacity. Compared with the vegetation-free condition, under the vegetation-covered condition, the hydrodynamic characteristics such as water level, flow velocity, pressure, flow pattern flow state, stress and the like around the plant roots and stems are obviously changed, and coherent structures such as a horseshoe vortex system and the like are easily generated, so that the research on the hydrodynamic characteristics under the vegetation-covered condition based on the flume erosion test method has very important significance. Because outdoor tests have more influence factors, variables are difficult to control, and accurate research cannot be carried out, the indoor vegetation simulation test method becomes an effective means.
The artificial vegetation simulation test is one of the important test methods and techniques for studying the slope erosion process and mechanism. Most of the existing simulated vegetation simulation technologies place a bottom plate in a water tank, the bottom plate is punched to fix simulated vegetation, and the bottom plate is replaced again when tests with different arrangement modes are performed, so that the waste of materials is caused, and the investment of manpower and financial resources is increased.
The existing vegetation simulation technology needs to be thin in order to reduce the interference on the flowing condition of water flow as much as possible, but the thickness of the bottom plate has to be increased in order to fix the simulated vegetation, so that the test error is large, the phenomena of water blocking and water dropping under the water flow condition are serious, and the roughness of the bottom of the water tank and the side wall is inconsistent, so that the accurate test is difficult.
Disclosure of Invention
The invention aims to provide a simple, economic and easy-to-operate artificial simulated vegetation fixing device for fixing emergent and submerged vegetation.
The purpose of the invention is realized by the following technical scheme:
the artificial simulated vegetation fixing device is characterized by comprising an artificial water tank, a lower pressing plate, a vegetation positioning plate, vegetation simulation columns, positioning columns and elastic fixing belts;
the vegetation positioning plate comprises an emergent vegetation positioning plate and a submerged vegetation positioning plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are respectively placed outside the upper edge and the bottom plate of the artificial water tank, the lower pressing plate is arranged at the upper part of the emergent vegetation positioning plate, the lower pressing plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are positioned through 4 positioning columns, and the lower pressing plate, the emergent vegetation positioning plate, the artificial water tank and the submerged vegetation positioning plate are sequentially fixed together by 2 elastic fixing belts from front to back;
the vegetation simulation column comprises an emergent vegetation simulation column and a submerged vegetation simulation column, the emergent vegetation simulation column is pressed at the bottom in the artificial water tank by the lower pressing plate after being positioned by the emergent vegetation positioning plate, and the submerged vegetation simulation column is firmly absorbed at the bottom in the artificial water tank by an electromagnet fixed on the submerged vegetation positioning plate through the bottom plate of the artificial water tank.
According to the technical scheme provided by the invention, the artificial simulated vegetation fixing device provided by the embodiment of the invention is used for researching movement and transportation conditions of water and sand under different vegetation conditions. The conditions required by the test can be simply, conveniently and accurately obtained. The method has the characteristics of resource saving, high test precision and wide application range.
Drawings
Fig. 1 is a schematic structural view of a fixing device for artificial simulated vegetation according to an embodiment of the present invention.
FIG. 2a is a schematic top view of a lower platen according to an embodiment of the present invention.
FIG. 2b is a schematic side view of the lower platen according to the embodiment of the present invention.
Fig. 3a is a schematic top view of an emergent vegetation positioning plate according to an embodiment of the invention.
Fig. 3b is a schematic side view of the emergent vegetation positioning plate according to the embodiment of the invention.
Fig. 4 is a schematic top view of the positioning plate for submerged vegetation in the embodiment of the present invention.
Fig. 5a and 5b are schematic diagrams of the plane and side structures of the elastic fixing band in the embodiment of the invention.
In the figure:
1. a lower pressing plate; 2. an emergent vegetation positioning plate; 3. fixing belts; 4. a submerged vegetation positioning plate; 5. a positioning column; 6. vegetation locating hole, 7, buckle fixed orifices, 8, fixed orifices, 9, acrylic plate, 10, sponge, 11, current converter (alternating current-direct current), 12, be the electro-magnet in every round hole, 13, buckle, 14, elastic bandage, 15, buckle.
Detailed Description
The embodiments of the present invention will be described in further detail below. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.
The invention relates to an artificial simulated vegetation fixing device, which has the preferred specific implementation modes that:
comprises an artificial water tank, a lower pressing plate, a vegetation positioning plate, a vegetation simulation column, a positioning column and an elastic fixing band;
the vegetation positioning plate comprises an emergent vegetation positioning plate and a submerged vegetation positioning plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are respectively placed outside the upper edge and the bottom plate of the artificial water tank, the lower pressing plate is arranged at the upper part of the emergent vegetation positioning plate, the lower pressing plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are positioned through 4 positioning columns, and the lower pressing plate, the emergent vegetation positioning plate, the artificial water tank and the submerged vegetation positioning plate are sequentially fixed together by 2 elastic fixing belts from front to back;
the vegetation simulation column comprises an emergent vegetation simulation column and a submerged vegetation simulation column, the emergent vegetation simulation column is pressed at the bottom in the artificial water tank by the lower pressing plate after being positioned by the emergent vegetation positioning plate, and the submerged vegetation simulation column is firmly absorbed at the bottom in the artificial water tank by an electromagnet fixed on the submerged vegetation positioning plate through the bottom plate of the artificial water tank.
The artificial water tank is a glass water tank.
The vegetation positioning plate and the positioning columns are made of acrylic materials, and the sizes of the lower pressing plate and the submerged plant positioning plate are 1100mm by 500mm by 10mm respectively; the emergent aquatic vegetation positioning plate is of a box-shaped structure, and the size of the emergent aquatic vegetation positioning plate is 1100mm 500mm 120 mm.
The emergent aquatic vegetation simulation column is made of an acrylic material, and has the size of 10mm or 5mm in diameter and not less than 400 mm; the submerged vegetation simulation column is made of stainless steel materials, the diameter of the submerged vegetation simulation column is 10mm or 5mm, and the height of the submerged vegetation simulation column is not higher than 20 mm.
The vegetation locating plate has arranged the vegetation locating hole, and the arrangement mode of vegetation locating hole is: one minimum unit is formed by arranging 5 vegetation positioning holes with the diameter of 10mm and 20 vegetation positioning holes with the diameter of 5mm into a square.
And an electromagnet is arranged in each vegetation positioning hole on the submerged vegetation positioning plate.
The elastic fixing band comprises an elastic bandage and an adjustable buckle.
The artificial simulated vegetation fixing device belongs to the technology of slope erosion, has the characteristics of resource saving, high test precision and wide application range, and has important popularization and application prospects.
Technical effects of the invention
1. And (3) resource saving: the arrangement mode of the positioning holes on the positioning plate can provide various combinations for multiple tests, so that manpower and material resources are saved;
2. the test precision is high: the positioning plate is not in direct contact with the inside of the water tank, so that the roughness of the bottom surface is not influenced, and the phenomena of water blocking and water dropping are not caused;
3. the application range is wide: the device can simulate not only emergent vegetation but also submerged vegetation, and can realize combined tests with different densities and continuous arrangement modes;
4. the adaptability is strong: by adjustable elasticity buckle fixing device, can be used to the basin of co-altitude not experimental.
The specific embodiment is as follows:
as shown in fig. 1 to 5b, the overall structure of the artificial vegetation simulation device comprises a lower pressing plate, a vegetation positioning plate, a vegetation simulation column, a positioning column and an elastic fixing band, wherein the vegetation positioning plate comprises an emergent vegetation positioning plate and a submerged vegetation positioning plate, the emergent vegetation positioning plate is placed right above a water tank, the submerged vegetation positioning plate is placed right below the outer edge of the water tank, emergent vegetation simulation positioning holes are placed into the emergent vegetation simulation positioning holes according to required density and arrangement, the emergent vegetation simulation positioning holes are pressed by the lower pressing plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are fixed by the elastic fixing band in sequence, and buckles are fastened. The simulated submerged vegetation is placed at the bottom in the water tank according to the required density and the arrangement mode, the switch of the current conversion device is turned on, and the simulated submerged vegetation is firmly attracted by utilizing the electromagnetic property of the electromagnet.
The specific embodiments and functions of the parts of the device are respectively explained as follows:
the holding down plate is formed by the adhesion of ya keli board and foam-rubber cushion, and upper portion is the ya keli board, and the face that lower part and simulation emerged vegetation contact is the foam-rubber cushion, and every angle of holding down plate respectively opens 1 fixed orifices and 1 buckle fixed orifices, totally 4.
The emergent aquatic vegetation positioning plate is made of an acrylic material and adopts a box-shaped structure with holes on the upper surface and the lower surface, each corner of the positioning plate is provided with 1 fixing hole and 1 buckle fixing hole, the upper layer and the lower layer are 8, and 4 positioning columns are respectively adhered in the fixing holes of the emergent aquatic vegetation positioning plate and are used for positioning the upper pressing plate and the submerged vegetation positioning plate; the positioning holes can realize the positioning of simulated plant combinations with different densities and different arrangement modes.
The submerged vegetation positioning plate is made of acrylic materials, each corner of the positioning plate is provided with 1 fixing hole and 1 buckle fixing hole, the total number of the fixing holes is 4, the positioning plate adopts a perforated plate-shaped structure, each positioning hole is fixed with an electromagnet for fixing simulated submerged vegetation, and the electromagnet is connected with a current conversion device for fixing the simulated submerged vegetation; the positioning holes can realize the combination of simulated vegetation with different densities and different arrangement modes.
The emergent aquatic vegetation simulation device is characterized in that the emergent aquatic vegetation simulation device is composed of acrylic solid columns with the diameters of 5mm and 10mm and the height of 450mm and used for simulating emergent aquatic vegetation.
The simulated submerged vegetation is composed of stainless steel solid columns with the diameters of 5mm and 10mm and the height of not more than 20mm and is used for simulating the submerged vegetation.
The elastic fixing band is composed of an elastic bandage and an adjustable buckle and used for fixing the device on the water tank.
The embodiment can realize the simultaneous simulation of emergent aquatic vegetation and submerged vegetation with different densities and different arrangement modes.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A fixing device for artificial simulated vegetation is characterized by comprising an artificial water tank, a lower pressing plate, a vegetation positioning plate, vegetation simulation columns, positioning columns and elastic fixing belts;
the vegetation positioning plate comprises an emergent vegetation positioning plate and a submerged vegetation positioning plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are respectively placed outside the upper edge and the bottom plate of the artificial water tank, the lower pressing plate is arranged at the upper part of the emergent vegetation positioning plate, the lower pressing plate, the emergent vegetation positioning plate and the submerged vegetation positioning plate are positioned through 4 positioning columns, and the lower pressing plate, the emergent vegetation positioning plate, the artificial water tank and the submerged vegetation positioning plate are sequentially fixed together by 2 elastic fixing belts from front to back;
the vegetation simulation column comprises an emergent vegetation simulation column and a submerged vegetation simulation column, the emergent vegetation simulation column is pressed at the bottom in the artificial water tank by the lower pressing plate after being positioned by the emergent vegetation positioning plate, and the submerged vegetation simulation column is firmly absorbed at the bottom in the artificial water tank by an electromagnet fixed on the submerged vegetation positioning plate through the bottom plate of the artificial water tank.
2. The artificial vegetation fixing device of claim 1 wherein the artificial flume is a glass flume.
3. The artificial simulated vegetation fixing device of claim 2 wherein the vegetation positioning plate and the positioning post are made of acrylic material, and the size of the lower pressing plate and the size of the submerged plant positioning plate are both 1100mm by 500mm by 10 mm; the emergent aquatic vegetation positioning plate is of a box-shaped structure, and the size of the emergent aquatic vegetation positioning plate is 1100mm 500mm 120 mm.
4. The artificial vegetation fixing device of claim 3, wherein the emergent aquatic vegetation simulation post is made of an acrylic material, has a diameter of 10mm or 5mm and a height of not less than 400 mm; the submerged vegetation simulation column is made of stainless steel materials, the diameter of the submerged vegetation simulation column is 10mm or 5mm, and the height of the submerged vegetation simulation column is not higher than 20 mm.
5. The artificial simulated vegetation fixing device of claim 4, wherein the vegetation positioning plate is arranged with vegetation positioning holes arranged in a manner that: one minimum unit is formed by arranging 5 vegetation positioning holes with the diameter of 10mm and 20 vegetation positioning holes with the diameter of 5mm into a square.
6. The artificial vegetation fixing device of claim 5, wherein an electromagnet is disposed in each vegetation positioning hole on the submerged vegetation positioning plate.
7. The artificial simulated vegetation fixture of any of claims 1 to 6 wherein the elastic securing strap comprises an elastic bandage, an adjustable clasp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059298.9A CN111208278B (en) | 2020-01-19 | 2020-01-19 | Artificial simulation vegetation fixing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010059298.9A CN111208278B (en) | 2020-01-19 | 2020-01-19 | Artificial simulation vegetation fixing device |
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| CN111208278A CN111208278A (en) | 2020-05-29 |
| CN111208278B true CN111208278B (en) | 2022-03-04 |
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| CN112681215B (en) * | 2020-12-23 | 2022-04-01 | 同济大学 | Method for arranging sand moving bed model of emergent aquatic plant group |
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| CN102313682A (en) * | 2011-07-21 | 2012-01-11 | 中国农业科学院农业资源与农业区划研究所 | Simulator of grassland vegetation coverage and simulation method thereof |
| CN202310786U (en) * | 2011-10-14 | 2012-07-11 | 中国环境科学研究院 | Submerged plant cultivating and testing apparatus capable of simulating river water body |
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| US7587858B2 (en) * | 2005-08-11 | 2009-09-15 | Roy E. Hock | Method and apparatus for cultivation of subaquatic vegetation |
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| CN102313682A (en) * | 2011-07-21 | 2012-01-11 | 中国农业科学院农业资源与农业区划研究所 | Simulator of grassland vegetation coverage and simulation method thereof |
| CN202310786U (en) * | 2011-10-14 | 2012-07-11 | 中国环境科学研究院 | Submerged plant cultivating and testing apparatus capable of simulating river water body |
| CN205719473U (en) * | 2016-05-19 | 2016-11-23 | 山东科技大学 | A kind of for studying the experimental provision that hydraulic characteristic(s) is affected by variety classes slope vegetation |
| CN205749442U (en) * | 2016-05-19 | 2016-11-30 | 山东科技大学 | A kind of for simulating the different rugosity vegetation experimental provision to overland flow drag effects |
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