Shock insulation and noise reduction road parapet wall
By using a combination of seismic isolation materials and sound-absorbing materials in the highway retaining wall, the problem of noise and vibration effects of the highway retaining wall on the environment is solved, and the effect of improving highway safety and aesthetics is achieved.
Patent Information
- Application Number
- CN202323362472.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2033-12-11
AI Technical Summary
The highway guardrail has a great impact on the noise and vibration of the surrounding environment, affecting the quality of life of residents and causing road safety hazards. The existing technical solutions have problems such as aging sound-absorbing materials, complex and expensive earthquake isolation devices, and affecting ventilation and lighting.
Seismic isolation materials and sound-absorbing materials are used to construct seismic-isolating and noise-reducing highway retaining walls, including concrete foundations, rubber isolation layers, reinforced concrete walls and foam plastic sound-absorbing layers, which reduce the impact on the environment by isolating vibrations and absorbing noise.
Effectively reduce the impact of noise and vibration on the surrounding environment, improve the safety and aesthetics of the highway, improve the quality of life of residents and protect the ecological environment.
Smart Images
Figure CN222390298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway traffic, in particular to a seismic isolation and noise reduction highway retaining wall, which is used to reduce the noise and vibration impact of the highway retaining wall on the surrounding environment and improve the safety and aesthetics of the highway. Background Art
[0002] Highway retaining wall is a structure used to protect soil and vehicles on both sides of the highway. It is usually made of concrete or other solid materials and has functions such as protection, guidance, and beautification. However, highway retaining wall also has some problems, mainly the noise and vibration impact on the surrounding environment, which not only affects the quality of life of residents, but also creates potential safety hazards on the highway.
[0003] The main source of noise is the friction between the tires and the air when the vehicle is driving, and the collision between the vehicle and the retaining wall. These sounds will be reflected and amplified by the retaining wall, and then spread to the surrounding buildings and people. The main source of vibration is the power and inertia generated by the vehicle when driving, and the collision between the vehicle and the retaining wall. These forces will be transmitted to the foundation and soil through the retaining wall, causing vibration and settlement of the ground.
[0004] In order to solve the noise and vibration problems of highway guardrails, some solutions have been proposed in the prior art, such as covering the outer surface of the guardrail with sound-absorbing materials, or installing seismic isolation devices inside the guardrails, or installing sound insulation screens on the upper part of the guardrails. However, these solutions all have some disadvantages, such as the sound-absorbing materials are easy to age and damage, the seismic isolation devices are complicated and expensive, and the sound insulation screens affect the ventilation and lighting of the highway. Therefore, a more optimized technical solution is needed to effectively reduce the noise and vibration impact of highway guardrails on the surrounding environment, while improving the safety and aesthetics of the highway. Utility Model Content
[0005] The purpose of the utility model is to provide a seismic isolation and noise reduction highway retaining wall, which uses seismic isolation materials and sound absorption materials to reduce the noise and vibration impact of the highway retaining wall on the surrounding environment, while improving the safety and aesthetics of the highway. In order to achieve this purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a seismic isolation and noise reduction highway retaining wall, comprising a foundation, a seismic isolation layer, a wall body and a sound absorption layer, wherein:
[0007] The foundation is a bearing structure cast with concrete, which is used to fix the position and height of the retaining wall and provide sufficient anti-overturning stability. The concrete strength grade, steel reinforcement ratio, width and depth of the foundation meet the design requirements;
[0008] The seismic isolation layer is a gasket made of rubber or other elastic materials, which is used to isolate the direct contact between the foundation and the wall, thereby reducing the vibration transmitted by the wall. The material, thickness and shape of the seismic isolation layer meet the design requirements;
[0009] The wall is a main structure composed of reinforced concrete or precast concrete components, used to withstand the impact of vehicles and the lateral pressure of the soil, and also plays a protective and guiding role. The concrete strength grade, steel reinforcement ratio, thickness, height and shape of the wall meet the design requirements;
[0010] The sound-absorbing layer is covered on the outer surface of the wall with foam plastic or other materials with good sound-absorbing properties. It is used to absorb and scatter the noise reflected by the wall, thereby reducing the impact of noise on the surrounding environment. The material, thickness, shape, color and texture of the sound-absorbing layer must meet the design requirements.
[0011] Furthermore, the width of the foundation is 1.5m, the depth of the foundation is 0.8m, the concrete strength grade of the foundation is C30, and the steel reinforcement ratio of the foundation is 0.5%.
[0012] Furthermore, the thickness of the seismic isolation layer is 50 mm, the material of the seismic isolation layer is natural rubber or synthetic rubber, the shape of the seismic isolation layer is circular, and the diameter of the seismic isolation layer is equal to or slightly smaller than the width of the wall.
[0013] Furthermore, the thickness of the wall is 200 mm, the height of the wall is 1.2 m, the concrete strength grade of the wall is C25, the steel reinforcement ratio of the wall is 0.8%, the wall is a precast concrete component, the surface of the precast concrete component has a concave-convex texture to increase the sound absorption performance of the wall, the connection method of the precast concrete component is bolts or welding, the shape of the wall is trapezoidal, and the inclination angle of the upper surface of the wall to the horizontal plane is 10° to increase the impact resistance and lateral pressure resistance of the wall.
[0014] Furthermore, the thickness of the sound absorbing layer is 50 mm, the material of the sound absorbing layer is polystyrene foam plastic or polyurethane foam plastic, the shape of the sound absorbing layer is corrugated, the height of the crest and trough of the sound absorbing layer is 25 mm, the wavelength of the sound absorbing layer is 100 mm, and the color and texture of the sound absorbing layer are coordinated with the surrounding scenery and buildings to increase the aesthetics of the retaining wall.
[0015] The technical features and advantages of the utility model are as follows:
[0016] By covering the outer surface of the wall with a sound-absorbing layer, the noise reflected by the wall can be absorbed and scattered, thereby reducing the impact of noise on the surrounding environment and improving the quality of life of residents. At the same time, it also reduces interference with wild animals and protects the ecological environment.
[0017] By laying an isolation layer between the foundation and the wall, the vibration transmitted by the wall can be isolated, thereby reducing the impact of the vibration on the ground, improving the safety of the highway, while also reducing damage to buildings and protecting cultural heritage.
[0018] By using reinforced concrete or precast concrete components as the wall, the wall's impact resistance and lateral pressure resistance can be enhanced, thereby enhancing the structural strength and stability of the retaining wall, preventing the retaining wall from collapsing and being damaged, and ensuring the safety of vehicles and pedestrians.
[0019] By selecting sound-absorbing layers of different colors and shapes, the aesthetics of the retaining wall can be increased, making it coordinated with the surrounding scenery and buildings, improving the landscape effect of the highway, while also increasing the recognition and brand image of the highway. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0021] Figure 1 It is a schematic diagram of the overall structure of the seismic isolation and noise reduction highway retaining wall of the utility model;
[0022] Figure 2 It is an application schematic diagram of an application example of the utility model. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0024] Embodiment 1:
[0025] like Figure 1 As shown, the seismic isolation and noise reduction highway retaining wall of this embodiment includes a foundation 1, a seismic isolation layer 2, a wall 3 and a sound absorption layer 4, wherein:
[0026] Foundation 1 is a bearing structure cast with concrete, used to fix the position and height of the retaining wall and provide sufficient anti-overturning stability. The width of foundation 1 is 1.5m, the depth of foundation 1 is 0.8m, the concrete strength grade of foundation 1 is C30, and the steel reinforcement ratio of foundation 1 is 0.5%;
[0027] The seismic isolation layer 2 is a gasket made of natural rubber, which is used to isolate the direct contact between the foundation 1 and the wall 3, thereby reducing the vibration transmitted by the wall 3. The thickness of the seismic isolation layer 2 is 50 mm, and the shape of the seismic isolation layer 2 is circular. The diameter of the seismic isolation layer 2 is equal to the width of the wall 3;
[0028] The wall 3 is a main structure composed of prefabricated concrete components, which is used to withstand the impact force of vehicles and the lateral pressure of soil, and also plays a role of protection and guidance. The thickness of the wall 3 is 200 mm, the height of the wall 3 is 1.2 m, the concrete strength grade of the wall 3 is C25, the steel reinforcement ratio of the wall 3 is 0.8%, and the steel bars of the wall 3 are designed and constructed in accordance with national standards and specifications. The shape of the wall 3 is trapezoidal, and the inclination angle between the upper surface of the wall 3 and the horizontal plane is 10° to increase the impact resistance and lateral pressure resistance of the wall 3. The surface of the wall 3 has a concave-convex texture to increase the sound absorption performance of the wall 3. The connection method of the wall 3 is bolts or welding;
[0029] The sound absorbing layer 4 is covered on the outer surface of the wall 3 with polystyrene foam plastic to absorb and scatter the noise reflected by the wall 3, thereby reducing the impact of the noise on the surrounding environment. The thickness of the sound absorbing layer 4 is 50 mm, the shape of the sound absorbing layer 4 is a wave, the height of the peak and trough of the sound absorbing layer 4 is 25 mm, the wavelength of the sound absorbing layer 4 is 100 mm, and the color and texture of the sound absorbing layer 4 are coordinated with the surrounding scenery and buildings to increase the aesthetics of the retaining wall.
[0030] Embodiment 2:
[0031] The difference between this embodiment and embodiment 1 is that the material of the seismic isolation layer 2 is synthetic rubber, the shape of the seismic isolation layer 2 is elliptical, the major axis length of the seismic isolation layer 2 is equal to or slightly smaller than the width of the wall 3, and the rest is the same as embodiment 1 and will not be repeated.
[0032] Embodiment 3:
[0033] The difference between this embodiment and Embodiment 1 is that the wall 3 is made of reinforced concrete, the shape of the wall 3 is rectangular, and the upper surface of the wall 3 is parallel to the horizontal plane. The rest is the same as Embodiment 1 and will not be repeated.
[0034] Embodiment 4:
[0035] The difference between this embodiment and the first embodiment is that the material of the sound absorbing layer 4 is polyurethane foam plastic, and the color and texture of the sound absorbing layer 4 are single. The rest is the same as the first embodiment and will not be described again.
[0036] Application Examples
[0037] 1. Application Background
[0038] The application example is that on a highway located in a mountainous area, the seismic isolation and noise reduction highway retaining wall of the utility model is built along both sides of the highway. The highway is an important traffic artery with a large number of vehicles and people passing through it every day. It is also a scenic tourist route with many natural and cultural landscapes along the way, attracting many tourists. However, the highway also faces some problems, mainly:
[0039] As the highway is located in a mountainous area, the soil is less stable and prone to landslides and collapses, posing a potential safety hazard to the highway.
[0040] Since there are no effective sound and vibration isolation measures on both sides of the highway, the noise and vibration generated by vehicles traveling will affect the surrounding environment, affect the quality of life of residents, and destroy the ecological balance;
[0041] Because the guard walls on both sides of the highway were not designed with aesthetic considerations in mind and are inconsistent with the surrounding scenery and buildings, the highway's landscape effect is affected and its recognition and brand image are reduced.
[0042] In order to solve these problems, this application example adopts the seismic isolation and noise reduction highway guardrail of the utility model, utilizes seismic isolation materials and sound absorption materials to reduce the noise and vibration impact of the highway guardrail on the surrounding environment, and at the same time improves the safety and aesthetics of the highway.
[0043] 2. Application Scheme
[0044] The application scenario of this application example is as follows:
[0045] On the soil on both sides of the highway, according to the design requirements, the foundation was poured with concrete to fix the position and height of the retaining wall and provide sufficient anti-overturning stability. The concrete strength grade, steel reinforcement ratio, width and depth of the foundation all met the design requirements;
[0046] An isolation layer is laid between the foundation and the wall to isolate the direct contact between the foundation and the wall, thereby reducing the vibration transmitted by the wall. The material, thickness and shape of the isolation layer meet the design requirements;
[0047] On the seismic isolation layer, a wall is assembled to withstand the impact of vehicles and the lateral pressure of the soil, while also playing a protective and guiding role. The concrete strength grade, steel reinforcement ratio, thickness, height and shape of the wall all meet the design requirements;
[0048] The outer surface of the wall is covered with a sound-absorbing layer to absorb and scatter the noise reflected by the wall, thereby reducing the impact of the noise on the surrounding environment. The material, thickness, shape, color and texture of the sound-absorbing layer all meet the design requirements.
[0049] 3. Application Effect
[0050] The application effects of this application example are as follows:
[0051] By covering the outer surface of the wall with a sound-absorbing layer, the noise reflected by the wall can be absorbed and scattered, thereby reducing the impact of noise on the surrounding environment, improving the quality of life of residents, and also reducing interference with wild animals and protecting the ecological environment. According to the measurement results, the seismic isolation and noise reduction highway retaining wall in this application example can reduce noise by more than 10 decibels, meeting the requirements of national standards;
[0052] By laying a seismic isolation layer between the foundation and the wall, the vibration transmitted by the wall can be isolated, thereby reducing the impact of the vibration on the ground, improving the safety of the highway, and also reducing damage to buildings and protecting cultural heritage. According to the measurement results, the seismic isolation and noise reduction highway retaining wall in this application example can reduce vibration by more than 50%, effectively preventing landslides and collapses of the soil, and ensuring the stability of the highway;
[0053] By using reinforced concrete or precast concrete components as the wall, the wall's impact resistance and lateral pressure resistance can be enhanced, thereby enhancing the structural strength and stability of the retaining wall, preventing the retaining wall from falling and being damaged, and ensuring the safety of vehicles and pedestrians. According to the test results, the seismic isolation and noise reduction highway retaining wall in this application example can withstand an impact force of more than 10 tons and a lateral pressure of more than 100 kPa, meeting the safety requirements of the highway;
[0054] By choosing different colors and shapes of sound-absorbing layers, the aesthetics of the retaining wall can be increased, making it coordinated with the surrounding scenery and buildings, improving the landscape effect of the highway, and also increasing the recognition and brand image of the highway. According to the survey results, the seismic isolation and noise reduction highway retaining wall of this application example has been welcomed and praised by tourists and residents, and has increased the visibility and attractiveness of the highway.
[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A seismic isolation and noise reduction highway retaining wall, characterized in that: It includes foundation, seismic isolation layer, wall and sound absorption layer, among which: The foundation is a bearing structure cast with concrete, which is used to fix the position and height of the retaining wall and provide sufficient anti-overturning stability. The concrete strength grade, steel reinforcement ratio, width and depth of the foundation meet the design requirements; The seismic isolation layer is a gasket made of natural rubber or synthetic rubber, which is used to isolate the direct contact between the foundation and the wall, thereby reducing the vibration transmitted by the wall. The material, thickness and shape of the seismic isolation layer meet the design requirements; The wall is a main structure composed of reinforced concrete or precast concrete components, used to withstand the impact of vehicles and the lateral pressure of the soil, and also plays a protective and guiding role. The concrete strength grade, steel reinforcement ratio, thickness, height and shape of the wall meet the design requirements; The sound-absorbing layer is covered on the outer surface of the wall with polystyrene foam or polyurethane foam to absorb and scatter the noise reflected by the wall, thereby reducing the impact of noise on the surrounding environment. The material, thickness, shape, color and texture of the sound-absorbing layer meet the design requirements.
2. The seismic isolation and noise reduction highway retaining wall according to claim 1 is characterized in that: The width of the foundation is 1.5m, the depth of the foundation is 0.8m, the concrete strength grade of the foundation is C30, and the steel reinforcement ratio of the foundation is 0.5%.
3. The seismic isolation and noise reduction highway retaining wall according to claim 1 or 2, characterized in that: The thickness of the seismic isolation layer is 50 mm, the material of the seismic isolation layer is natural rubber or synthetic rubber, the shape of the seismic isolation layer is circular, and the diameter of the seismic isolation layer is equal to or slightly smaller than the width of the wall.
4. The seismic isolation and noise reduction highway retaining wall according to claim 1, characterized in that: The thickness of the wall is 200 mm, the height of the wall is 1.2 m, the concrete strength grade of the wall is C25, the steel reinforcement ratio of the wall is 0.8%, the wall is a precast concrete component, the surface of the precast concrete component has a concave-convex texture to increase the sound absorption performance of the wall, the connection method of the precast concrete component is bolts or welding, the shape of the wall is trapezoidal, and the inclination angle of the upper surface of the wall to the horizontal plane is 10° to increase the impact resistance and lateral pressure resistance of the wall.
5. The seismic isolation and noise reduction highway retaining wall according to claim 1, characterized in that: The thickness of the sound absorbing layer is 50 mm, the material of the sound absorbing layer is polystyrene foam plastic or polyurethane foam plastic, the shape of the sound absorbing layer is corrugated, the height of the crest and trough of the sound absorbing layer is 25 mm, the wavelength of the sound absorbing layer is 100 mm, and the color and texture of the sound absorbing layer are coordinated with the surrounding scenery and buildings to increase the aesthetics of the retaining wall.