Highway soundproof carbon-absorbing fence

Abstract

The utility model relates to the technical field of highway isolation fence, specifically relates to a sound insulation and carbon absorption highway isolation fence, including the technical scheme that the utility model solves above -mentioned technical problem is as follows: a sound insulation and carbon absorption highway isolation fence, including fence foundation, the water -retaining layer, carbon absorption shrub layer and sound barrier module are sequentially arranged on the fence foundation, the support beam is arranged in the middle position of fence foundation, the sound barrier module is arranged on the support beam, the carbon absorption shrub layer is arranged between the sound barrier module and the support beam, and the carbon absorption shrub layer is planted in the water -retaining layer, the culvert is arranged below the water -retaining layer, the fence foundation is divided into the road side and the far road side by the support beam, the buffer cavity that temporarily stores rainwater is arranged on the road side, the buffer cavity is communicated with the open channel of road surface, and the buffer cavity and the open channel are separated through the water filter grating, and the dust fall spray module is arranged on the support beam. The utility model better realizes the function of carbon absorption, dust fall and isolation noise, and rainwater can be fully utilized.

Description

Technical Field

[0001] This utility model relates to the field of highway guardrail technology, specifically to a highway guardrail for sound insulation and carbon absorption. Background Technology

[0002] Highways are closed roads, and highway barriers are in place to prevent tractors, non-motorized vehicles, people, and animals from entering the highway at will and affecting traffic safety. Highways sometimes pass through residential areas, and vehicles speeding along them generate significant noise, dust, and exhaust fumes.

[0003] Currently, there are two main types of traditional isolation fences. One type is a structure that combines isolation netting with posts. This type of isolation fence is mainly used in open areas with few people and cannot effectively isolate noise, dust, or vehicle exhaust.

[0004] Another option is to use sound barrier modules. These modules are fully enclosed physical barriers that confine noise, dust, and vehicle exhaust to the road. However, in hot weather, heat accumulates on the road and cannot dissipate. They only serve to isolate noise, dust, and vehicle exhaust, which naturally dissipate or diffuse in the air.

[0005] Currently, Chinese patent CN211690905U discloses a self-spraying green plant sound-absorbing sound barrier. The barrier consists of a base at the bottom of a foundation wall, a top plate at the top, and an aluminum alloy frame attached to one side of the foundation wall via expansion screws. Several sound-absorbing panels are arranged within the aluminum alloy frame. Multiple boxes are arranged in a rectangular array and fixed to the aluminum alloy frame with self-tapping screws. A basin is obliquely positioned at the end of each box away from the foundation wall. A water trough is installed at the connection point between the bottom of the foundation wall and the base. A water supply pipe is fixed to the aluminum alloy frame, and an irrigation head is located at the top of the water supply pipe, connected to the top of the uppermost box. A lighting mechanism is mounted on the lower surface of the top plate via a bracket.

[0006] In the aforementioned prior art, the base wall is similar to the aforementioned sound barrier module, the pot is used to plant green plants, the number of plants is small, management and maintenance are difficult, and it is not suitable for both sides of highways or long roads.

[0007] There is an urgent need to provide a better isolation fence solution to solve the above-mentioned technical problems. Utility Model Content

[0008] Based on the above description, this utility model provides a highway isolation fence for sound insulation and carbon absorption and a construction method therefor, so as to reduce the impact of noise, dust and exhaust fumes generated by vehicles on highways on the surrounding environment.

[0009] On the one hand, the technical solution of this utility model to solve the above-mentioned technical problems is as follows: a highway isolation fence for sound insulation and carbon absorption, including a fence foundation;

[0010] The fence is constructed in sequence with a water-retaining layer, a carbon-absorbing shrub layer, and a sound barrier module.

[0011] A support beam is set in the middle of the fence foundation, the sound barrier module is set on the support beam, the carbon-absorbing shrub layer is set between the sound barrier module and the support beam, and the carbon-absorbing shrub layer is planted in the water-retaining layer.

[0012] A culvert is installed below the water-retaining layer. The supporting beams divide the fence foundation into a near-road side and a far-road side. A buffer chamber for temporary rainwater storage is installed on the near-road side. The buffer chamber is connected to the open ditch on the road surface. The buffer chamber and the open ditch are separated by a water-filtering grid.

[0013] The support beam is equipped with a dust suppression spray module.

[0014] It should be noted that a vertical gap is left between the sound barrier module and the supporting beam, allowing the carbon-absorbing shrub layer to grow within this gap. This gap is intended to allow air exchange between the roadside and the outside environment. During this exchange, the carbon-absorbing shrub layer uses its branches and leaves to block and filter dust, allowing it to settle onto the water-retaining layer. Additionally, the carbon-absorbing shrub layer can absorb carbon dioxide and sulfur dioxide, thus purifying the air and neutralizing carbon emissions. The thick green barrier formed by the shrub layer can absorb some air vibrations, thereby blocking noise transmission and reducing noise. The sound barrier modules above the beams can absorb noise generated by air vibrations above, further reducing noise.

[0015] Based on the above technical solution, the present invention can be further improved as follows.

[0016] Furthermore, the carbon-absorbing shrub layer includes low shrub areas and interspersed shrub areas;

[0017] The staggered shrub area is planted close to the support beam, and the staggered shrub area is symmetrically arranged on both sides of the support beam; the staggered shrub area is composed of alternating low shrub belts and high shrub belts, and the end of the high shrub belt on the roadside that is away from the road surface is inclined towards the direction of vehicle travel.

[0018] Furthermore, the low shrub area and low shrub belt are planted with broadleaf Mahonia; the high shrub belt is planted with small-leaf Boxwood.

[0019] Furthermore, the height of the low shrub area and low shrub belt relative to the road surface is 40-65cm, and the width of the low shrub area is 20-30cm.

[0020] The height of the tall shrub strip relative to the road surface is 80-100cm, and the width of the tall shrub strip is 20-30cm;

[0021] The width of the interspersed shrub area is 30-40cm.

[0022] In summary, alternating planting of low and high shrubs has several advantages. First, it increases the surface area of ​​the shrubs in contact with the air, resulting in greater sunlight exposure and improved growth and survival. Second, it allows for better air circulation, further increasing the ventilation rate of the road surface and the outer side of the road. The alternating shrubs on the far side of the road also absorb vehicle exhaust fumes. When the airflow generated by vehicles impacts the inclined high shrubs on the near side of the road, its kinetic energy is reduced. The high shrubs on the far side of the road further block and reduce the kinetic energy of the airflow, thus reducing vibrations caused by airflow through multiple layers of buffering.

[0023] It should be noted that while some scenarios currently use shrub walls to absorb noise and harmful gases, these are often just single shrub walls or hedges. Shrubs close to the road can be effective, but those far from the road cannot. Moreover, many shrub green belts suffer from diseases, withering, and rotting due to overly dense planting and poor air circulation.

[0024] Furthermore, the sound barrier module includes supporting columns and a barrier panel, with the barrier panel detachably connected between two supporting columns;

[0025] The barrier panel includes a lower panel, a middle panel, and an upper panel arranged sequentially from bottom to top. The middle panel is a transparent material, and the lower panel has a trimming line on the side near the middle panel.

[0026] The upper plate has an arc-shaped cross-section, and the upper side of the upper plate extends toward the roadside.

[0027] With the above technical solution, when the height of the tall shrub belt exceeds the trimming line, the tall shrub belt needs to be trimmed; the middle plate made of transparent board allows light to pass through, which can provide light for the shrubs on the one hand, and avoid visual fatigue caused by long-term obstruction of vision on the other hand.

[0028] Furthermore, the dust suppression spray module includes a spray pipe and nozzles installed on the spray pipe, as well as a rainwater storage tank and a rainwater lifting tank.

[0029] The spray pipe is installed on the side wall of the upper plate.

[0030] Through the above technical solution, the temporary storage tank is used to collect and store rainwater. During seasons with high rainfall, water can be pumped from the temporary storage tank to the rainwater lifting tank during off-peak hours. The rainwater lifting tank is higher than the sprinkler pipe. When it is necessary to spray to suppress dust or irrigate the carbon-absorbing shrub layer, the water in the rainwater lifting tank can be used to avoid peak electricity consumption periods.

[0031] Furthermore, the rainwater storage tank is connected to both open and culverts, with a baffle plate inserted in the culvert and an overflow hole between the baffle plate and the bottom of the water-retaining layer.

[0032] With the above technical solution, water can be stored in the culvert only when the water level in the culvert reaches the overflow hole, and water will flow out from the overflow hole.

[0033] Furthermore, the supporting column is integrally formed with a spray connector that communicates with the spray pipe.

[0034] The above technical solution allows the spray connector to be used to connect with the spray pipe, making the installation of the spray pipe more convenient.

[0035] Furthermore, mounting grooves are provided on both sides of the support column, and buffer strips are provided in the mounting grooves, with multiple shock-absorbing cavities in the buffer strips.

[0036] The sides of the barrier panel are wrapped with cushioning rubber strips.

[0037] In the above technical solution, the buffer strip plays a buffering role to reduce the transmission of vibration; when a vehicle is driving on the road, the road will vibrate, which will cause the support column to vibrate; the buffer strip reduces the vibration of the support column transmitted to the barrier plate, thus avoiding noise caused by the vibration of the barrier plate.

[0038] In summary, both the fence foundation and the sound barrier module are prefabricated and modular, allowing for easy assembly and installation on-site, which significantly improves on-site construction efficiency. The use of grid molds to press out the planting grid results in more uniform shrub planting and more accurate shrub placement.

[0039] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0040] 1. The carbon-absorbing shrub layer includes low shrub areas and staggered shrub areas, with the staggered shrub areas consisting of alternating low shrub strips and high shrub strips. The arrangement of low shrub areas and staggered shrub areas increases the surface area of ​​the carbon-absorbing shrub layer, making it easier to absorb dust and other harmful gases. Existing roadside greening and green isolation belts often use green plants of a single height to form a green hedge, which mainly serves as a separation function.

[0041] Furthermore, the wind tunnels formed by low and high shrub belts can guide the flow of air, which reduces noise and dust pollution and ensures the stable growth of shrubs.

[0042] 2. The barrier panel is used to shield the transmission of noise, thereby isolating noise. There is space between the barrier panel and the supporting beam for the installation of a carbon-absorbing shrub layer. When a vehicle is driving on the road, the noise generated comes from the friction between the vehicle and the air, and from the noise generated by the vibration of the road under the vehicle. The barrier panel is almost not connected to the road, which effectively reduces the noise caused by road vibration; it can also isolate the noise generated by the friction between the vehicle and the air. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the sound-insulating and carbon-absorbing highway guardrail provided in Embodiment 1 of this utility model;

[0044] Figure 2 A schematic diagram of the open channel and culvert structure of the highway isolation fence for sound insulation and carbon absorption provided in Embodiment 1 of this utility model;

[0045] Figure 3 This is a schematic diagram of the sound barrier module of the highway guardrail for sound insulation and carbon absorption according to Embodiment 1 of this utility model;

[0046] Figure 4 This is a schematic diagram of the structure of the fence foundation for the sound-insulating and carbon-absorbing highway guardrail of Embodiment 1 of this utility model;

[0047] Figure 5 This is a top view of the carbon-absorbing shrub layer of the highway guardrail for sound insulation and carbon absorption according to Embodiment 1 of this utility model;

[0048] Figure 6 This is a schematic diagram of the structure of the barrier panel of the highway guardrail for sound insulation and carbon absorption according to Embodiment 1 of this utility model;

[0049] Figure 7 This is a schematic diagram of the supporting column of the highway guardrail for sound insulation and carbon absorption according to Embodiment 1 of this utility model;

[0050] Figure 8 This is a schematic diagram of the dust suppression spray module of the highway guardrail for sound insulation and carbon absorption according to Embodiment 1 of this utility model;

[0051] Figure 9 This is a schematic diagram of the rainwater storage tank and rainwater lifting tank of the highway guardrail for sound insulation and carbon absorption in Embodiment 1 of this utility model.

[0052] Attached reference numerals: 1. Fence foundation; 11. Support beam; 12. Foundation trench; 13. Support plate one; 14. Support plate two; 15. Buffer plate; 16. Buffer cavity; 17. Drainage hole; 18. Support step; 19. Positioning protrusion;

[0053] 2. Water-retaining layer;

[0054] 3. Carbon-absorbing shrub layer; 31. Low shrub area; 32. Interspersed shrub area; 33. Low shrub belt; 34. High shrub belt;

[0055] 4. Sound barrier module; 41. Support column; 42. Barrier panel; 43. Lower plate; 44. Middle plate; 45. Upper plate; 46. Trimmed markings; 47. Mounting groove; 48. Buffer strip; 49. Vibration damping cavity;

[0056] 5. Dust suppression spray module; 51. Spray pipe; 52. Spray head; 53. Rainwater storage tank; 54. Rainwater lifting tank; 55. Spray connector; 56. Water baffle; 57. Overflow hole;

[0057] 6. Open channel; 7. Underground channel; 8. Guide slope. Detailed Implementation

[0058] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0060] Example 1:

[0061] refer to Figure 1 A highway safety fence for sound insulation and carbon absorption, comprising a fence base 1;

[0062] Above the fence foundation 1, a water-retaining layer 2, a carbon-absorbing shrub layer 3, and a sound barrier module 4 are installed in sequence.

[0063] refer to Figure 1-3A support beam 11 is installed in the middle of the fence foundation 1. The sound barrier module 4 is fixedly installed on the support beam 11. The carbon-absorbing shrub layer 3 is installed between the sound barrier module 4 and the support beam 11. The sound barrier module 4 includes a support column 41 and a barrier plate 42. The distance between the barrier plate 42 and the support beam 11 is 60-80cm, which is set according to the local shrub growth height. If the local shrubs grow fast and tall, the distance is set to 80cm, otherwise it is set to 60cm. The carbon-absorbing shrub layer 3 is planted in the water-retaining layer 2.

[0064] refer to Figure 2-4 The fence foundation 1 includes a foundation trench 12, a first support plate 13, and a second support plate 14. The foundation trench 12 is provided with support steps 18 to support the first support plate 13 and the second support plate 14. The first support plate 13 and the second support plate 14 are laid in the foundation trench 12 and supported by the support steps 18. Both the first support plate 13 and the second support plate 14 are provided with water-permeable holes 17. A permeable geotextile is first laid on the first support plate 13 and the second support plate 14, and then planting soil is laid to form a water-retaining layer 2.

[0065] refer to Figure 2-4 A culvert 7 is installed below the water-retaining layer 2. Support plate 13, support plate 2, and permeable geotextile separate the water-retaining layer 2 and the culvert 7. The bottom of the support beam 11 is provided with a connecting hole that connects the two culverts 7. The support beam 11 divides the fence foundation 1 into a near-road side and a far-road side. A buffer chamber 16 for temporary rainwater storage is provided on the near-road side. A buffer partition 15 is integrally formed on one side of the support plate 2 14. The buffer chamber 16 is formed between the buffer partition 15 and the support plate 2 14. The buffer chamber 16 is connected to the open channel 6 on the road surface. The buffer chamber 16 and the open channel 6 are separated by a water-filtering grid. The buffer partition 15 is provided with permeable holes 17 to form a water-filtering grid. The bottom of the open channel 6 is not lower than the bottom of the buffer chamber 16. A guide slope 8 is laid between the open channel 6 and the road.

[0066] When it rains or when water trucks wash the roads, the water flows down the guide slope 8 into the open channel 6, is filtered by the buffer baffle 15 and then flows into the buffer chamber 16. After being further filtered by the water-permeable holes 17 at the bottom of the buffer chamber 16, it flows into the culvert 7. When the water flow is rapid or there is a lot of water, the water flows directly to a lower place through the open channel 6.

[0067] refer to Figure 1 and Figure 4 A water baffle 56 is inserted in the culvert 7. An overflow hole 57 is located between the water baffle 56 and the bottom of the water-retaining layer 2. Water will only flow out through the overflow hole 57 when the water level in the culvert 7 is higher than the water baffle 56. This makes it difficult for water in the culvert 7 to be lost. The water in the culvert 7 can slowly evaporate upwards and enter the water-retaining layer 2 to provide moisture for the carbon-absorbing shrub layer 3.

[0068] refer to Figure 1 , 2 And 5, the carbon-absorbing shrub layer 3 includes a low shrub zone 31 and an interlaced shrub zone 32;

[0069] The staggered shrub zone 32 is planted close to the supporting beam 11, and is symmetrically arranged on both sides of the supporting beam 11. The staggered shrub zone 32 consists of alternating low shrub strips 33 and high shrub strips 34. The end of the high shrub strip 34 located near the road surface slopes towards the direction of vehicle travel. The low shrub zone 31 and low shrub strip 33 are planted with broadleaf Mahonia, and the high shrub strip 34 is planted with small-leaved Buxus microphylla. The height of the low shrub zone 31 and low shrub strip 33 relative to the road surface is 40-65cm. The width of zone 31 is 20-30cm; the height of the tall shrub belt 34 relative to the road surface is 80-100cm, and the width of the tall shrub belt 34 is 20-30cm; the width of the staggered shrub zone 32 is 30-40cm; the staggered planting of the low shrub belt 33 and the tall shrub belt 34 increases the contact surface between the carbon-absorbing shrub layer 3 and the external air; in addition, the high shrub belts 34 form air ducts to guide the flow of gas, and combined with the symmetrical arrangement on both sides of the support beam 11, it can absorb most of the dust and vehicle exhaust;

[0070] Regarding the gap between the barrier plate 42 and the low shrub belt 33 in the interlaced shrub area 32, some dust and vehicle exhaust can escape from this gap. It is worth noting that, in most cases, when a car is driving on a road or highway, it will push the airflow on both sides to move to the side of the vehicle, that is, almost perpendicular to the length direction of the carbon-absorbing shrub layer 3. The airflow will carry dust and exhaust to impact the carbon-absorbing shrub layer 3 and be almost completely absorbed, rather than flowing and escaping along the gap between the adjacent high shrub belts 34.

[0071] refer to Figure 6 and Figure 7 Regarding the sound barrier module 4, the barrier panel 42 is detachably connected between the two supporting columns 41, and the fence foundation 1 (see reference). Figure 8 Preferably, it is prefabricated in a factory using reinforced concrete. During prefabrication, pre-embedded bolts extend upward from the support beam 11. The support column 41 is fixed to the support beam 11 by the pre-embedded bolts. Both sides of the support column 41 are provided with mounting grooves 47, and buffer strips 48 are bonded in the mounting grooves 47. Multiple damping cavities 49 are provided in the buffer strips 48. The sides of the barrier plate 42 are wrapped with buffer strips 48. The damping cavities 49 enable the buffer strips 48 to block vibration. When the vehicle is driving on the road, the vibration generated by the road is reduced by the buffer strips 48, which reduce the vibration of the support column 41 transmitted to the barrier plate 42, thus preventing the barrier plate 42 from vibrating and generating noise.

[0072] refer to Figure 6 and Figure 7The barrier panel 42 includes a lower panel 43, a middle panel 44, and an upper panel 45 arranged sequentially from bottom to top. The middle panel 44 is a transparent sheet material. The upper panel 45 has an arc-shaped cross-section, and the upper side of the upper panel 45 extends toward the roadside. Adjacent panels are sealed and bonded together with structural adhesive.

[0073] refer to Figure 8 and Figure 9 A dust suppression spray module 5 is installed on the support beam 11. The dust suppression spray module 5 includes a spray pipe 51 and a nozzle 52 installed on the spray pipe 51, as well as a rainwater storage tank 53 and a rainwater lifting tank 54. The rainwater storage tank 53 is connected to both the open channel 6 and the culvert 7. When laying the fence foundation 1, it is laid in sections of 10-20 kilometers each. It is necessary to ensure that each section of the fence foundation 1 has a certain inclination angle. Each section of the fence foundation 1 corresponds to a rainwater storage tank 53. One or more rainwater storage tanks 53 correspond to a rainwater lifting tank 54. Water is transported from the rainwater storage tank 53 to the rainwater lifting tank 54 by a lifting pump. The water can flow in the culvert 7 and flow into the rainwater storage tank 53. When the water volume in the rainwater storage tank 53 reaches a certain height and it is during a low electricity consumption period, the lifting pump is started to transport water to the rainwater lifting tank 54.

[0074] refer to Figure 6 and Figure 8 The spray pipe 51 is fixedly connected to the side wall of the upper plate 45 by a pipe clamp. Multiple nozzles 52 are connected to the spray pipe 51, and the nozzles 52 are inclined towards the carbon-absorbing shrub layer 3. The support column 41 has an integrally formed spray connector 55 that communicates with the spray pipe 51. The spray connector 55 serves to connect the spray pipe 51 and support the spray pipe 51.

[0075] refer to Figure 8 and Figure 9 A water baffle 56 is inserted in the culvert 7. An overflow hole 57 is located between the water baffle 56 and the bottom of the water-retaining layer 2. Water flows out from the overflow hole 57 only when the water level in the culvert 7 reaches the overflow hole 57, thus a portion of water can be retained in the culvert 7. The water in the culvert 7 continues to evaporate, which can provide water for the water-retaining layer 2, ensuring that the carbon-absorbing shrub layer 3 on the water-retaining layer 2 has enough water to survive.

[0076] refer to Figure 6 and Figure 8 Preferably, a trimming line 46 is provided on the side of the lower plate 43 near the middle plate 44. The trimming line 46 needs to be conspicuous and durable. The trimming line 46 is preferably red and yellow in color and the width of the trimming line 46 is 10cm. When the growth height of the tall shrub belt 34 exceeds the trimming line 46, it indicates that the tall shrub belt 34 needs to be trimmed.

[0077] Example 2:

[0078] refer to Figures 1-9 A construction method for a highway guardrail for sound insulation and carbon absorption includes the following steps:

[0079] S101, a 40cm-50cm distance is reserved on the side of the road for the construction of open channel 6, and a trench is excavated for burying the fence foundation 1.

[0080] S102, embed the fence foundation 1 into the pre-dug trench;

[0081] S103, an open channel 6 is constructed between the road and the fence foundation 1, one side of the open channel 6 is connected to the buffer cavity 16 in the fence foundation 1; the bottom of the open channel 6 is not lower than the bottom of the buffer cavity 16, and a guide slope 8 is laid between the open channel 6 and the road.

[0082] S104, a permeable geotextile is laid in the fence foundation 1, and planting soil for planting carbon-absorbing shrubs 3 is filled on the permeable geotextile to form a water-retaining layer 2.

[0083] S105, Install the sound barrier module 4 onto the support beam 11;

[0084] S106, shrubs are planted in the water-retaining layer 2 to form a carbon-absorbing shrub layer 3.

[0085] Preferably, one end of the foundation trench 12 is provided with a positioning protrusion 19, and the other end is provided with a positioning groove that complements the positioning protrusion 19; the foundation trench 12, support plate one 13 and support plate two 14 are preferably made of reinforced concrete precast, but can also be formed by integral metal casting or plastic injection molding.

[0086] As a preferred embodiment, the steps for laying the fence foundation 1 are as follows:

[0087] S201, the positioning protrusion 19 of the base trough 12 is matched with the positioning groove on the adjacent base trough 12, and then spliced ​​and laid in sequence, with the gaps filled and bonded with cement mortar.

[0088] S202, A water baffle 56 is inserted near the end of the foundation tank 12 and bonded with cement mortar.

[0089] S203, lay support plate 13 and support plate 2 14 into the foundation trough 12, and ensure that support plate 2 14 is laid on the side close to the road, and ensure that the buffer cavity 16 is connected to the open channel 6.

[0090] Preferably, the steps for installing the sound barrier module 4 onto the support beam 11 are as follows:

[0091] S301, first fill the mounting groove 47 with the buffer rubber strip 48, and then fix a support column 41 to the pre-embedded bolt on the support beam 11;

[0092] S302, then insert the lower plate 43, the middle plate 44 and the upper plate 45 into the mounting slot 47 in sequence;

[0093] S303, connect the spray pipe 51 to the spray connector 55, then connect another support column 41 to the barrier plate 42 and the spray pipe 51, and fix the support column 41 to the support beam 11;

[0094] S304. Install the support column 41, shielding plate and sprinkler pipe 51 in sequence according to the steps of S301-S303; and connect the sprinkler pipe 51 to the rainwater lifting tank 54.

[0095] As a preferred method, the steps for planting shrubs in the water-retaining layer 2 are as follows:

[0096] Planting grids are pressed onto the water-retaining layer 2 using a grid mold;

[0097] Plant according to the planting grid, first plant the staggered shrub area 32, then plant the low shrub area 31;

[0098] Planting begins on the side closest to support beam 11, with low shrubs and tall shrubs planted alternately. The first row consists of 2-3 low shrubs and 2-3 tall shrubs planted in sequence, the second row consists of 2-3 tall shrubs and 2-3 low shrubs planted in sequence, and so on.

[0099] The supporting beam 11 is planted symmetrically on the near and far sides, with simultaneous work on both sides.

[0100] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highway safety fence for sound insulation and carbon absorption, comprising a fence base (1); Its features are, A water-retaining layer (2), a carbon-absorbing shrub layer (3), and a sound barrier module (4) are sequentially arranged on the fence foundation (1); A support beam (11) is provided in the middle of the fence foundation (1), a sound barrier module (4) is provided on the support beam (11), a carbon-absorbing shrub layer (3) is provided between the sound barrier module (4) and the support beam (11), and the carbon-absorbing shrub layer (3) is planted in the water-retaining layer (2). A culvert is provided below the water-retaining layer (2). The support beam (11) divides the fence foundation (1) into a near-road side and a far-road side. A buffer chamber (16) for temporarily storing rainwater is provided on the near-road side. The buffer chamber (16) is connected to the open channel of the road surface. The buffer chamber (16) and the open channel are separated by a water-filtering grid. A dust suppression spray module (5) is installed on the support beam (11).

2. The highway guardrail for sound insulation and carbon absorption according to claim 1, characterized in that, The carbon-absorbing shrub layer (3) includes a low shrub area (31) and an interleaved shrub area (32); The staggered shrub area (32) is planted close to the support beam (11), and the staggered shrub area (32) is symmetrically arranged on both sides of the support beam (11); the staggered shrub area (32) is composed of low shrub belts (33) and high shrub belts (34) interspersed, and the high shrub belt (34) located on the roadside is inclined towards the direction of vehicle travel at the end away from the road surface.

3. The highway guardrail for sound insulation and carbon absorption according to claim 2, characterized in that, The low shrub area (31) and low shrub belt (33) are planted with broadleaf Mahonia; the high shrub belt (34) is planted with smallleaf Boxwood.

4. The highway guardrail for sound insulation and carbon absorption according to claim 2, characterized in that, The height of the low shrub area (31) and the low shrub belt (33) relative to the road surface is 40-65cm, and the width of the low shrub area (31) is 20-30cm. The height of the tall shrub strip (34) relative to the road surface is 80-100cm, and the width of the tall shrub strip (34) is 20-30cm; The width of the interspersed shrub area (32) is 30-40cm.

5. The highway guardrail for sound insulation and carbon absorption according to claim 1, characterized in that, The sound barrier module (4) includes a support column (41) and a barrier plate (42), and the barrier plate (42) is detachably connected between the two support columns (41); The barrier plate (42) includes a lower plate (43), a middle plate (44) and an upper plate (45) arranged from bottom to top. The middle plate (44) is a transparent plate, and a trimming mark (46) is provided on the side of the lower plate (43) near the middle plate (44). The upper plate (45) has an arc-shaped cross-section, and the upper side of the upper plate (45) extends toward the roadside.

6. The highway guardrail for sound insulation and carbon absorption according to claim 5, characterized in that, The dust suppression spray module (5) includes a spray pipe (51) and a nozzle (52) installed on the spray pipe (51), as well as a rainwater storage tank (53) and a rainwater lifting tank (54); The spray pipe (51) is located on the side wall of the upper plate (45).

7. The highway guardrail for sound insulation and carbon absorption according to claim 6, characterized in that, The rainwater storage tank (53) is connected to both open and closed channels. A baffle plate (56) is inserted in the closed channel, and an overflow hole (57) is located between the baffle plate (56) and the bottom of the water-retaining layer (2).

8. The sound-insulating and carbon-absorbing highway guardrail according to any one of claims 5-7, characterized in that, The support column (41) has an integrally formed spray connector (55) that communicates with the spray pipe (51).

9. The sound-insulating and carbon-absorbing highway guardrail according to any one of claims 5-7, characterized in that, The support column (41) has mounting grooves (47) on both sides, and a buffer strip (48) is provided in the mounting groove (47). The buffer strip (48) has multiple shock-absorbing cavities (49). The side of the barrier plate (42) is wrapped with a buffer strip (48).

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