CN215165272U - Sound-proof energy-dissipating layer for dam - Google Patents
Sound-proof energy-dissipating layer for dam Download PDFInfo
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- CN215165272U CN215165272U CN202120505496.3U CN202120505496U CN215165272U CN 215165272 U CN215165272 U CN 215165272U CN 202120505496 U CN202120505496 U CN 202120505496U CN 215165272 U CN215165272 U CN 215165272U
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Abstract
A sound-insulation energy-dissipation layer for a dam relates to the technical field of dam environment protection construction. The artificial lawn comprises an inner interlayer, a first outer interlayer, a aquatic grass, a stilling ridge, a fixed edge covering, a grass soil base layer and a second outer interlayer; the first outer interlayer and the second outer interlayer are both porous sponge structure layers, the inner structure defined by the first outer interlayer and the second outer interlayer is an inner interlayer which is a natural hollow structure layer, the left end and the right end of the first outer interlayer and the second outer interlayer are fixedly connected through fixed wrapping edges, a plurality of force absorption ridges are arranged below the second outer interlayer, the force absorption ridges are of arc structures, and the mounting direction of the force absorption ridges is opposite to that of the bottom flow dam; the novel sound insulation structure is simple in structure, the main body outer structure layer is made of porous sponge, the main body inner structure layer is of a hollow structure, the whole mass is light, materials are few, the use cost is reduced, the sound insulation effect is good, the service life is long, the application range is wide, and the practicability is high.
Description
Technical Field
The utility model relates to a dam environmental protection construction technical field, concretely relates to dam is with giving sound insulation layer that disappears.
Background
Along with the continuous development of national economy and the increasing requirements of people on living environment, noise is an important factor influencing the daily life of residents, so certain noise reduction treatment is performed on the back of a dam, and the generated noise is not enough to influence the daily life and sleep of local residents. During the opening of the gate, the gravitational potential energy of the water flow is converted into kinetic energy, most of the energy is carried downstream, the anti-scouring capability of the sandy gravel riverbed is poor, and scouring causes the water flow in the downstream plunge pool to be turbulent, so that a local scouring pit is formed downstream of the dam. If the scouring range is continuously enlarged and the distance between the scouring range and the surrounding hydraulic buildings is short and the depth is deep, the safety of the hydraulic junction can be endangered, and the stability of the bank slope is influenced. Thus taking into account the consumption of mechanical energy inside the water flow. The water flow noise of small and medium-sized dams near residential areas influences the rest of surrounding residents. The flow noise generated by small and medium dams when water flows down is loud, the noise is not around the clock, and is more obvious at silent night, and surrounding residents can not have a rest as if the residents are in a busy city.
In the existing trajectory energy dissipation process, the downward-discharged water flow is deflected into the air and falls into a downstream river channel. In the whole process of water flow discharging, the discharged water flow rubs with the surface of the spillway and the ambient air, and strongly washes the downstream river channel, so that the energy of the downstream river channel is fully dissipated, and the energy dissipation effect is achieved. This process is noisy and does not consider the issue of noise cancellation. Aiming at the problems, the dam sound-insulating and energy-dissipating layer for water flow energy dissipation and sound insulation is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a dam with giving sound insulation and disappearing ability layer, its simple structure adopts porous sponge to make the main part outer structure layer, and the main part inner structure layer is hollow structure, and whole quality is lighter, and the material is less, has reduced use cost, and the sound insulation effect is better, and life is longer, and application scope is wider, and the practicality is stronger.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the grass mat comprises an inner interlayer 1, a first outer interlayer 2, a aquatic grass mat 3, a stilling ridge 4, a fixed edge covering 5, a grass mat soil base layer 6 and a second outer interlayer 7; the first outer interlayer 2 and the second outer interlayer 7 are both porous sponge structure layers, the inner structure formed by the first outer interlayer 2 and the second outer interlayer 7 in an enclosing mode is an inner interlayer 1, the inner interlayer 1 is a natural hollow structure layer, the left end and the right end of the first outer interlayer 2 and the second outer interlayer 7 are fixedly connected through fixing covered edges 5, a plurality of force absorption ridges 4 are arranged below the second outer interlayer 7, the force absorption ridges 4 are arc-shaped structures, and the installation direction of the force absorption ridges is opposite to that of the underflow dam; the first outer interlayer 2 is arranged on the inner side of the dam guide wall, the grass soil base layer 6 is arranged on the upper surface of the first outer interlayer 2, and the water grass 3 is planted on the grass soil base layer 6.
Further, the first outer interlayer 2 is a long straight strip sponge layer structure.
Further, the second outer interlayer 7 is an arc-shaped strip sponge layer structure.
Furthermore, the first outer interlayer 2 and the second outer interlayer 7 are bonded and installed in a reinforcing mode through hot melting.
Further, the fixing edge 5 is a high-toughness metal fixing piece.
The utility model discloses a theory of operation: 1. the dam slope and the sound insulation and energy dissipation layer above the dam slope surround the downward-discharged water flow, and sound is isolated inside the dam slope and the sound insulation and energy dissipation layer.
2. The outer interlayer of the sound insulation and energy dissipation layer is treated by porous sponge; the inner interlayer adopts hollow treatment, namely air. When the water flow noise at the lower part of the sound-insulating and energy-dissipating layer is transmitted to the outer interlayer of the sound-insulating and energy-dissipating layer, the porous sponge has a silencing effect, so that the noise is weakened. The interface where the noise enters the inner sandwich layer is weakened, and the interface where the noise enters the inner sandwich layer and passes through the interface for the second time is weakened again. The treatment of the inner interlayer and the outer interlayer can reduce the water flow noise transmission process for many times, and the silencing effect is achieved.
3. The arc-shaped stilling ridges of the arc-shaped stilling pool of the underflow dam are designed in a staggered mode. The staggered arc-shaped stilling ridges divide water flow, mechanical energy of the water can be consumed, and meanwhile, the staggered arc-shaped stilling ridges collide with the backflow of the stilling ridges in the opposite direction of the sound insulation stilling layer, so that multiple times of friction is formed, the mechanical energy of the water flow is consumed, and the downstream scouring of the water flow is reduced.
4. The environment-friendly design of the sound insulation and energy dissipation layer is beneficial to the survival of the fishes. A water grass cluster is made above the sound-insulation and energy-dissipation layer, has beautifying and noise-reduction effects, and can be used as a habitat of fishes and a springboard for swimming over a dam.
5. The space below the sound insulation and energy dissipation layer is a space for generating noise by water flow, can also be a fish habitat and contributes to ecological diversity.
6. The treatment of different conditions of the large flow and the normal flow of the river channel is fully considered. The water can flow away from the space above and below the water grass at the sound-insulation and energy-dissipation layer during large flow, and the ordinary flow flows away from the space below the sound-insulation and energy-dissipation layer. The large flow is usually flood in rainy days or short term, the time is short, and the silencing treatment can be omitted. Under the condition of normal flow, water flows away from the lower surface of the sound insulation and energy dissipation layer, and noise can be isolated below the sound insulation and energy dissipation layer.
After the technical scheme is adopted, the utility model discloses beneficial effect does: simple structure adopts porous sponge to make the outer structural layer of main part, and the main part structure inlayer is hollow structure, and the overall mass is lighter, and the material is less, has reduced use cost, and the sound insulation effect is better, and life is longer, and application scope is wider, and the practicality is stronger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the middle fixing wrapping 5 of the present invention.
Description of reference numerals: the artificial lawn comprises an inner interlayer 1, a first outer interlayer 2, a aquatic grass 3, a stilling ridge 4, a fixed edge covering 5, a grass soil base layer 6 and a second outer interlayer 7.
Detailed Description
Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the grass mat comprises an inner interlayer 1, a first outer interlayer 2, a aquatic grass mat 3, a stilling ridge 4, a fixed edge covering 5, a grass mat soil base layer 6 and a second outer interlayer 7; the first outer interlayer 2 and the second outer interlayer 7 are both porous sponge structure layers, the inner structure formed by the first outer interlayer 2 and the second outer interlayer 7 in an enclosing mode is an inner interlayer 1, the inner interlayer 1 is a natural hollow structure layer, the left end and the right end of the first outer interlayer 2 and the second outer interlayer 7 are fixedly connected through fixing covered edges 5, a plurality of force absorption ridges 4 are arranged below the second outer interlayer 7, the force absorption ridges 4 are arc-shaped structures, and the installation direction of the force absorption ridges is opposite to that of the underflow dam; the first outer interlayer 2 is arranged on the inner side of the dam guide wall, the grass soil base layer 6 is arranged on the upper surface of the first outer interlayer 2, and the water grass 3 is planted on the grass soil base layer 6.
Furthermore, the first outer interlayer 2 is of a long straight strip sponge layer structure, and installation and laying between the diversion walls of the dam are facilitated.
Furthermore, the second outer interlayer 7 is of an arc-shaped strip sponge layer structure, so that the installation radian between the underflow dams can be matched conveniently, the normal flow of water flow is ensured, and the flow is uniform.
Furthermore, the first outer interlayer 2 and the second outer interlayer 7 are reinforced and attached through hot welding, and the fixing edge 5 is matched to strengthen the installation stability between the first outer interlayer 2 and the second outer interlayer 7.
Furthermore, the fixed edge covering 5 is a high-toughness metal fixing piece, so that the assembly and disassembly are convenient, and the fixed effect after the installation is excellent.
The utility model discloses a theory of operation: 1. the dam slope and the sound insulation and energy dissipation layer above the dam slope surround the downward-discharged water flow, and sound is isolated inside the dam slope and the sound insulation and energy dissipation layer.
2. The outer interlayer of the sound insulation and energy dissipation layer is treated by porous sponge; the inner interlayer adopts hollow treatment, namely air. When the water flow noise at the lower part of the sound-insulating and energy-dissipating layer is transmitted to the outer interlayer of the sound-insulating and energy-dissipating layer, the porous sponge has a silencing effect, so that the noise is weakened. The interface where the noise enters the inner sandwich layer is weakened, and the interface where the noise enters the inner sandwich layer and passes through the interface for the second time is weakened again. The treatment of the inner interlayer and the outer interlayer can reduce the water flow noise transmission process for many times, and the silencing effect is achieved.
3. The arc-shaped stilling ridges of the arc-shaped stilling pool of the underflow dam are designed in a staggered mode. The staggered arc-shaped stilling ridges divide water flow, mechanical energy of the water can be consumed, and meanwhile, the staggered arc-shaped stilling ridges collide with the backflow of the stilling ridges in the opposite direction of the sound insulation stilling layer, so that multiple times of friction is formed, the mechanical energy of the water flow is consumed, and the downstream scouring of the water flow is reduced.
4. The environment-friendly design of the sound insulation and energy dissipation layer is beneficial to the survival of the fishes. A water grass cluster is made above the sound-insulation and energy-dissipation layer, has beautifying and noise-reduction effects, and can be used as a habitat of fishes and a springboard for swimming over a dam.
5. The space below the sound insulation and energy dissipation layer is a space for generating noise by water flow, can also be a fish habitat and contributes to ecological diversity.
6. The treatment of different conditions of the large flow and the normal flow of the river channel is fully considered. The water can flow away from the space above and below the water grass at the sound-insulation and energy-dissipation layer during large flow, and the ordinary flow flows away from the space below the sound-insulation and energy-dissipation layer. The large flow is usually flood in rainy days or short term, the time is short, and the silencing treatment can be omitted. Under the condition of normal flow, water flows away from the lower surface of the sound insulation and energy dissipation layer, and noise can be isolated below the sound insulation and energy dissipation layer.
After the technical scheme is adopted, the utility model discloses beneficial effect does: simple structure adopts porous sponge to make the outer structural layer of main part, and the main part structure inlayer is hollow structure, and the overall mass is lighter, and the material is less, has reduced use cost, and the sound insulation effect is better, and life is longer, and application scope is wider, and the practicality is stronger.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. Dam is with syllable-dividing layer that disappears, its characterized in that: the grass mat comprises an inner interlayer (1), a first outer interlayer (2), a water grass mat (3), a stilling bucket (4), a fixed edge covering (5), a grass soil base layer (6) and a second outer interlayer (7); the first outer interlayer (2) and the second outer interlayer (7) are both porous sponge structure layers, the inner structure enclosed by the first outer interlayer (2) and the second outer interlayer (7) is an inner interlayer (1), the inner interlayer (1) is a natural hollow structure layer, the left end and the right end of the first outer interlayer (2) and the second outer interlayer (7) are fixedly connected through a fixing edge covering (5), a plurality of force absorption ridges (4) are arranged below the second outer interlayer (7), the force absorption ridges (4) are arc-shaped structures, and the mounting direction is opposite to that of the force absorption ridges of the underflow dam; the first outer interlayer (2) is arranged on the inner side of the dam guide wall, the grass soil base layer (6) is arranged on the upper surface of the first outer interlayer (2), and water and grass clusters (3) are planted on the grass soil base layer (6).
2. The sound-insulating and energy-dissipating layer for a dam according to claim 1, wherein: the first outer interlayer (2) is of a long straight strip sponge layer structure.
3. The sound-insulating and energy-dissipating layer for a dam according to claim 1, wherein: the second outer interlayer (7) is of an arc-shaped strip sponge layer structure.
4. The sound-insulating and energy-dissipating layer for a dam according to claim 1, wherein: the first outer interlayer (2) and the second outer interlayer (7) are bonded and installed in a reinforcing mode through hot melting.
5. The sound-insulating and energy-dissipating layer for a dam according to claim 1, wherein: the fixing edge covering (5) is a high-toughness metal fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505496.3U CN215165272U (en) | 2021-03-10 | 2021-03-10 | Sound-proof energy-dissipating layer for dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505496.3U CN215165272U (en) | 2021-03-10 | 2021-03-10 | Sound-proof energy-dissipating layer for dam |
Publications (1)
| Publication Number | Publication Date |
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| CN215165272U true CN215165272U (en) | 2021-12-14 |
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| CN202120505496.3U Active CN215165272U (en) | 2021-03-10 | 2021-03-10 | Sound-proof energy-dissipating layer for dam |
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| CN (1) | CN215165272U (en) |
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2021
- 2021-03-10 CN CN202120505496.3U patent/CN215165272U/en active Active
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