Municipal engineering road anti-seepage design structure

Abstract

The utility model discloses a municipal engineering road anti-seepage design structure which comprises a roadbed, a gravel layer is arranged at the upper end of the roadbed, a filtering mechanism is arranged at the upper end of the gravel layer, first waterproof walls are fixedly connected to the two sides of the lower end of the filtering mechanism, and second waterproof walls are connected to the two sides of the upper end of the filtering mechanism in a clamped mode. A protection mechanism is fixedly connected to one side of the second waterproof wall, and concrete is movably connected to the upper end of the filtering mechanism. By arranging the filtering mechanism, the equipment can effectively intercept and filter impurities and particulate matters in accumulated water on the road surface, so that the matters entering a drainage system are reduced, and the blockage and pollution of the drainage system are avoided; by arranging the protection mechanism, the device can solve the problem of road water accumulation, meanwhile, rainwater can be prevented from permeating into a roadbed and corroding the roadbed, the service life of the drainage well can be prolonged, and due to the fact that a filtering grating can block large sundries, abrasion to the inner wall of the drainage well is reduced.

Description

Technical Field

[0001] This utility model relates to the field of road seepage prevention design technology, specifically a road seepage prevention design structure for municipal engineering. Background Technology

[0002] Municipal roads refer to roads that connect various areas of a city, serving urban transportation and pedestrian use, facilitating residents' lives, work, and cultural and recreational activities, and connecting with roads outside the city to bear external traffic. Urban roads are generally wider than highways and, to accommodate complex traffic modes, are often divided into motor vehicle lanes, bus priority lanes, and non-motor vehicle lanes. Elevated sidewalks and buildings line both sides of the roads, with public utility lines often buried beneath the sidewalks. Green belts and sculptures are incorporated to beautify the city. To protect the urban environment and sanitation, dust and noise levels are minimized. Highways, on the other hand, have shoulders outside the carriageway, are lined with trees on both sides, and have drainage ditches along the sides.

[0003] Patent CN215856989U discloses a seepage-proof design structure for municipal roads, including a roadbed with a foundation trench and a road surface drainage ditch. The foundation trench includes a support layer and an auxiliary drainage layer. The support layer includes an inclined asphalt pavement layer, a first base layer, a filling layer, and a second base layer. The auxiliary drainage layer includes water passage holes, drainage ditches, support blocks, and a filling part. The road surface drainage ditch is provided with a seepage-proof cavity, which includes a first rubber layer and a waterproof silicone sheet. An inner waterproof sealant is coated between the first rubber layer and the waterproof silicone sheet, and an outer waterproof sealant is coated on the outer layer of the waterproof silicone sheet.

[0004] In the construction of traditional municipal roads, waterproofing designs are often incorporated into the road structure to ensure good impermeability. This prevents rainwater from penetrating into the road surface, leading to severe water accumulation and affecting the safety of vehicles and pedestrians. Utility Model Content

[0005] The purpose of this utility model is to provide a seepage-proof design structure for municipal engineering roads, in order to solve the problem mentioned in the background art that during the construction of municipal roads, in order to make the road have good seepage resistance, the road structure is often designed to prevent rainwater from penetrating into the road surface, which will cause serious water accumulation on the road surface and affect the safety of driving and pedestrians.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a road seepage prevention design structure for municipal engineering, including a roadbed, a crushed stone layer at the upper end of the roadbed, a filter mechanism at the upper end of the crushed stone layer, a first waterproof wall fixed to both sides of the lower end of the filter mechanism, a second waterproof wall engaging with both sides of the upper end of the filter mechanism, a protective mechanism fixed to one side of the second waterproof wall, a three-component soil movably connected to the upper end of the filter mechanism, a concrete layer fixed to the upper end of the three-component soil, and a permeable asphalt layer fixed to the upper end of the concrete layer.

[0007] The filtration mechanism includes a mud layer, the lower end of which is movably connected to the upper end of a gravel layer. A protective layer is provided at the upper end of the mud layer, and a non-woven geotextile layer is provided at the upper end of the protective layer. A drainage mesh is fixedly connected to the upper end of the non-woven geotextile layer, and a filling layer is fixedly connected to the upper end of the drainage mesh. A filter layer is fixedly connected to the upper end of the filling layer. Side plates are fixedly connected to both sides of the filter layer. A drainage hole is opened in the middle of the side plate. A support is fixedly connected to one side of the side plate. A drainage outlet is embedded in the upper end of the support. A slot is opened through the upper end of the support, and a locking block is inserted into the inner wall of the slot.

[0008] Preferably, the lower end of the crushed stone layer is fixedly connected to the upper end of the roadbed, and the lower end of the filtration mechanism is fixedly connected to the upper end of the crushed stone layer.

[0009] Preferably, the upper end of the mud layer is fixedly connected to the lower end of the protective layer, and the upper end of the protective layer is fixedly connected to the lower end of the non-woven geotextile layer.

[0010] Preferably, the upper end of the support base is adapted to the lower end of the second waterproof wall and has the same drainage outlet.

[0011] Preferably, the protective mechanism includes a drainage well, one side of which is fixedly connected to one side of the second waterproof wall. A round hole is provided on one side of the inner wall of the drainage well, and a drainage pipe is provided on the other side of the drainage well. A square groove is embedded in the upper end of the drainage well. A sealing layer is movably connected to the inner wall of the square groove. A filter grid is fixedly connected to the inner wall of the sealing layer. A water flow hole is opened through the inner wall of the filter grid. Fixing bolts are fixedly connected to the bottom wall of the square groove around the perimeter. Nuts are threaded onto the outer wall of the fixing bolts. A protective plate is bolted to the upper end of the drainage well.

[0012] Preferably, one side of the inner wall of the drainage well is connected through the outer wall of the circular hole, and one end of the drainage pipe is connected through the other side of the drainage well.

[0013] Preferably, the upper perimeter of the filter grid is provided with through holes that are compatible with the fixing bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The filtration mechanism can effectively intercept and filter impurities and particulate matter in the water on the road surface, thereby reducing the amount of these substances entering the drainage system and avoiding blockage and pollution of the drainage system. The permeable asphalt layer and filter layer can not only allow water to seep down, but also filter out larger particles and debris such as leaves in the water. The synergistic effect of the drainage net mat and the non-woven geotextile layer can filter and guide the collected rainwater or sewage discharged by itself, and finally discharge it through the drainage holes and outlets, thereby improving the service life of the roadbed.

[0016] 2. The protective mechanisms installed by the equipment can solve the problem of road water accumulation, while also preventing rainwater from seeping into the roadbed and causing erosion. This also extends the service life of the drainage wells, as the filter grille can block larger debris, reducing wear on the inner walls of the wells. Furthermore, due to the reasonable arrangement of the filter grille and drainage pipes, the drainage efficiency of the wells can be guaranteed even in heavy rainfall, ensuring the dryness and safety of the road. The sealing layer and protective plate further enhance the protective capabilities of the drainage wells, preventing the overflow of debris and sewage, and protecting the internal structure from external environmental erosion. This not only improves the performance of the road but also enhances the stability and reliability of the urban drainage system, which has positive significance for environmental protection and urban flood control. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the filtration mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0020] Figure 4 This is a side-view exploded view of the three-dimensional structure of this utility model.

[0021] In the diagram: 1. Roadbed; 2. Crushed stone layer; 3. Filtration mechanism; 4. Waterproof wall one; 5. Waterproof wall two; 6. Protective mechanism; 7. Three-component soil; 8. Concrete layer; 9. Permeable asphalt layer; 31. Mud layer; 32. Protective layer; 33. Non-woven geotextile layer; 34. Drainage mesh; 35. Filling layer; 36. Filter layer; 37. Side plate; 38. Drainage hole; 39. Support base; 310. Drainage outlet; 311. Slot; 312. Block; 61. Drainage well; 62. Round hole; 63. Drainage pipe; 64. Square trench; 65. Sealing layer; 66. Filter grid; 67. Water flow hole; 68. Fixing bolt; 69. Nut; 610. Protective plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a seepage prevention design structure for municipal engineering roads, including a roadbed 1, a crushed stone layer 2 at the upper end of the roadbed 1, a filter mechanism 3 at the upper end of the crushed stone layer 2, a waterproof wall 4 fixedly connected to both sides of the lower end of the filter mechanism 3, a second waterproof wall 5 engagedly connected to both sides of the upper end of the filter mechanism 3, a protective mechanism 6 fixedly connected to one side of the second waterproof wall 5, a mortar 7 movably connected to the upper end of the filter mechanism 3, a concrete layer 8 fixedly connected to the upper end of the mortar 7, a permeable asphalt layer 9 fixedly connected to the upper end of the concrete layer 8, and a mud layer 31 at the upper end of the filter mechanism 3. The lower end of the mud layer 31 is movably connected to the upper end of the crushed stone layer 2, and a protective layer 3 is provided at the upper end of the mud layer 31. 2. A non-woven geotextile layer 33 is provided at the upper end of the protective layer 32. A drainage mesh 34 is fixedly connected to the upper end of the non-woven geotextile layer 33. A filling layer 35 is fixedly connected to the upper end of the drainage mesh 34. A filter layer 36 is fixedly connected to the upper end of the filling layer 35. Side plates 37 are fixedly connected to both sides of the filter layer 36. A drainage hole 38 is opened in the middle of the side plate 37. A support base 39 is fixedly connected to one side of the side plate 37. A drainage outlet 310 is embedded in the upper end of the support base 39. A slot 311 is opened through the upper end of the support base 39. A locking block 312 is inserted into the inner wall of the slot 311. The lower end of the crushed stone layer 2 is fixedly connected to the upper end of the roadbed 1. The lower end of the filter mechanism 3 is fixedly connected to the upper end of the crushed stone layer 2.

[0024] The crushed stone layer 2 installed on the upper part of the roadbed 1 not only provides good drainage performance but also effectively disperses the pressure on the superstructure, reducing direct impact on the roadbed 1. The filter mechanism 3 above the crushed stone layer 2 mainly functions to further filter and guide rainwater, ensuring that rainwater can be smoothly discharged through the drainage holes 38 and drainage outlets 310, while preventing soil particles from being washed away with water, maintaining the integrity and stability of the road structure. Waterproof walls 4 are fixed to both sides of the lower end of the filter mechanism 3. These waterproof walls 4 not only support and fix the filter mechanism 3 but also prevent lateral water penetration, protecting the roadbed 1 from water damage. Waterproof walls 2 are interlocked on both sides of the upper end of the filter mechanism 3. 5. Together with the first waterproof wall 4, it forms a closed seepage-proof structure, ensuring that water can only flow along a predetermined path, thereby achieving the purpose of seepage prevention. A protective mechanism 6 is fixedly connected to one side of the second waterproof wall 5. Its function is to protect the first waterproof wall 4, the second waterproof wall 5 and the filter mechanism 3 from damage by external factors. Rainwater is led out through the drainage holes 38 on the first waterproof wall 4 and the second waterproof wall 5 to the drainage outlet 310. Through the drainage outlet 310, the rainwater is finally discharged into the drainage well 61 through the round hole 62, and finally discharged through the drainage pipe 63. It can not only effectively discharge rainwater or water accumulation on the road surface, but also prevent rainwater from seeping into the roadbed 1, and prevent damage to pipes and other structures under the roadbed 1.

[0025] Please see Figure 2 In order to quickly guide and drain the rainwater on the breathable asphalt layer, the upper end of the mud layer 31 is fixedly connected to the lower end of the protective layer 32, the upper end of the protective layer 32 is fixedly connected to the lower end of the non-woven geotextile layer 33, and the upper end of the support base 39 is adapted to the lower end of the waterproof wall 5 and has the same drainage outlet 310.

[0026] The upper end of the filter mechanism 3 is movably connected to a three-component soil 7, which is composed of lime, crushed bricks, and fine sand. The three-component soil 7 is compacted in layers by a road roller, thus possessing certain strength and water resistance, as well as good compressive strength and stability, providing a solid foundation for the upper concrete layer 8. The upper end of the concrete layer 8 is fixedly connected to a permeable asphalt layer 9, which not only provides a good driving surface but also has a certain degree of permeability, allowing rainwater to permeate through its surface into the drainage well 61. The filter mechanism 3 includes a mud layer 31, the lower end of which is connected to a crushed stone layer. The upper end of layer 2 is movable, and its main function is to further filter water and prevent fine particulate matter from being lost with the water. A protective layer 32 is provided at the upper end of the mud layer 31. The protective layer 32 is usually made of plastic or rubber material, which can prevent the mud layer 31 from being directly exposed to the external environment and extend its service life. A non-woven geotextile layer 33 is provided at the upper end of the protective layer 32. The non-woven geotextile has good filtration and isolation functions, which can prevent soil particles from being lost with water, while allowing water to pass through. A drainage mesh 34 is fixed to the upper end of the non-woven geotextile layer 33. The drainage mesh 34 is a porous structure. The material of the structure can effectively collect and guide water flow to the drainage holes 38. A filling layer 35 is fixed to the upper end of the drainage mesh 34. The filling layer 35 is usually made of lightweight material and its function is to provide support for the filter layer 36 and maintain the smooth flow of drainage. The filter layer 36 is fixed to the upper end of the filling layer 35. The filter layer 36 further ensures the cleanliness of the water and prevents clogging of the drainage holes 38. Side plates 37 are fixed to both sides of the filter layer 36. Drainage holes 38 are opened in the middle of the side plates 37. These drainage holes 38 are the main channels for water discharge. A support base 39 is fixed to one side of the side plate 37. The upper end of the support base 39 is embedded with a drain outlet 310, which is connected to a round hole 62 on one side of the drainage well 61 to ensure that water can be discharged smoothly. The upper end of the support base 39 is provided with a slot 311, and a locking block 312 is inserted into the inner wall of the slot 311. This setting makes the connection of the entire structure more stable and facilitates installation and maintenance. The lower end of the crushed stone layer 2 is movably connected to the upper end of the roadbed 1 to ensure that it is tightly integrated with the roadbed 1 to form a whole. Through this setting, water penetration can be effectively prevented, the roadbed 1 can be protected from damage, and the service life of the road can be extended.

[0027] Please see Figure 3To quickly fix the filter grille 66 to the drainage well 61, the protective mechanism 6 includes a drainage well 61. One side of the drainage well 61 is fixedly connected to one side of the waterproof wall 5. A round hole 62 is provided on one side of the inner wall of the drainage well 61, and a drain pipe 63 is provided on the other side of the drainage well 61. A square groove 64 is embedded and connected to the upper end of the drainage well 61. A sealing layer 65 is movably connected to the inner wall of the square groove 64. A filter grille 66 is fixedly connected to the inner wall of the sealing layer 65. A water flow hole 67 is opened through the inner wall of the filter grille 66. Fixing bolts 68 are fixedly connected to the bottom wall of the square groove 64. Nuts 69 are threadedly connected to the outer wall of the fixing bolts 68. A protective plate 610 is bolted to the upper end of the drainage well 61. One side of the inner wall of the drainage well 61 is connected through the outer wall of the round hole 62. One end of the drain pipe 63 is connected through the other side of the drainage well 61. Through holes that match the fixing bolts 68 are opened around the upper end of the filter grille 66.

[0028] A protective plate 610 is installed above the filter grille 66. Its main function is to prevent debris from entering the drainage well 61 and to protect the filter grille 66 from damage caused by external factors. The protective plate 610 is usually made of corrosion-resistant and high-strength materials to ensure its stability and durability in harsh environments. The edge of the protective plate 610 is connected to the upper edge of the drainage well 61 with screws, so that the protective plate 610 can be firmly fixed to the drainage well 61 and prevent it from shifting under the impact of water flow. As an important component of the drainage well 61, the selection of materials for the drainage pipe 63 is also crucial. The drainage pipe 63 is usually made of materials with sufficient strength and durability to withstand long-term water flow impact and possible chemical corrosion. The inner wall of the drainage pipe 63 is smooth to reduce water flow resistance and improve drainage efficiency. The other end of the drainage pipe 63 is usually connected to the municipal drainage system to ensure that rainwater can be discharged smoothly. In order to further improve the efficiency and reliability of the drainage system, a circular... Hole 62 allows water that has seeped into the permeable asphalt layer 9 to drain, preventing rainwater from accumulating within the permeable asphalt layer. Furthermore, the tops of multiple sets of fixing bolts 68 penetrate the bottom of the filter grid 66 and extend to its top. Nuts 69 are threaded onto the circumferential sides of the fixing bolts 68 and at the top of the filter grid 66. The inner wall of the nuts 69 has threads that mate with the fixing bolts 68. The cooperation of the fixing bolts 68 and nuts 69 prevents the filter grid 66 from being washed away during heavy rain, facilitating cleaning and maintenance. The installation and maintenance of the entire drainage system must follow certain specifications and standards to ensure long-term stable operation. During installation, the connections of all components must be firm and reliable. The use of the sealing layer 65 and fixing bolts 68 ensures the sealing of the filter grid 66 and the drainage well 61, extending their service life. Regular inspection and maintenance are necessary to promptly identify and resolve potential problems, ensuring the efficiency and safety of the drainage system.

[0029] Working principle: First, the crushed stone layer 2 set on the upper end of the roadbed 1 not only provides good drainage performance, but also effectively disperses the pressure on the superstructure, reducing the direct impact on the roadbed 1. The filter mechanism 3 above the crushed stone layer 2 mainly functions to further filter and guide rainwater, ensuring that rainwater can be smoothly discharged through the drainage holes 38 and drainage outlets 310, while preventing soil particles from being washed away with water, maintaining the integrity and stability of the road structure. Waterproof walls 4 are fixed to both sides of the lower end of the filter mechanism 3. These waterproof walls 4 not only support and fix the filter mechanism 3, but also prevent water from seeping laterally, protecting the roadbed 1 from water damage. Waterproof walls 5 are interlocked on both sides of the upper end of the filter mechanism 3, cooperating with waterproof walls 4. A closed, seepage-proof structure is formed, ensuring that water can only flow along a predetermined path, thereby achieving the purpose of seepage prevention. A protective mechanism 6 is fixedly connected to one side of the second waterproof wall 5, which protects the first waterproof wall 4, the second waterproof wall 5, and the filter mechanism 3 from damage by external factors. Rainwater is led out through the drainage holes 38 on the first waterproof wall 4 and the second waterproof wall 5 to the drainage outlet 310. Through the drainage outlet 310, the rainwater is finally discharged into the drainage well 61 through the round hole 62, and finally discharged through the drainage pipe 63. This not only effectively discharges rainwater or accumulated water from the road surface, but also prevents rainwater from seeping into the roadbed 1 and prevents damage to pipes and other structures under the roadbed 1. The upper end of the filter mechanism 3 is movably connected to a three-component soil 7, which is composed of lime, crushed bricks, and fine sand. The three-component soil 7 is compacted in layers by a road roller, thus possessing certain strength and water resistance, as well as good compressive strength and stability, providing a solid foundation for the upper concrete layer 8. A permeable asphalt layer 9 is fixedly connected to the upper end of the concrete layer 8. The permeable asphalt layer 9 not only provides a good driving surface but also has a certain degree of permeability, allowing rainwater to seep through its surface into the drainage well 61. The filtration mechanism 3 includes a mud layer 31, the lower end of which is movably connected to the upper end of the crushed stone layer 2. Its main function is to further filter water and prevent fine particulate matter from being lost with the water. A protective layer 32 is provided at the upper end of the mud layer 31. The protective layer 32 is usually made of plastic or rubber materials, preventing the mud layer 31 from being directly exposed to the external environment. To extend its service life, a non-woven geotextile layer 33 is provided at the upper end of the protective layer 32. The non-woven geotextile has good filtration and isolation properties, preventing soil particles from being lost with water while allowing water to pass through. A drainage mesh 34 is fixed to the upper end of the non-woven geotextile layer 33. The drainage mesh 34 is a porous material that can effectively collect and guide water flow to the drainage hole 38. A filling layer 35 is fixed to the upper end of the drainage mesh 34. The filling layer 35 is usually made of lightweight material and its function is to provide support for the filter layer 36 and maintain the smooth flow of drainage. The filter layer 36 is fixed to the upper end of the filling layer 35. The filter layer 36 further ensures the cleanliness of the water and prevents clogging of the drainage hole 38. Side plates 37 are fixed to both sides of the filter layer 36.A drainage hole 38 is provided in the middle of the side plate 37. These drainage holes 38 are the main channels for water discharge. A support base 39 is fixedly connected to one side of the side plate 37. A drainage outlet 310 is embedded in the upper end of the support base 39. The drainage outlet 310 is connected to a round hole 62 on one side of the drainage well 61 to ensure that water can be discharged smoothly. A slot 311 is provided through the upper end of the support base 39. A locking block 312 is inserted into the inner wall of the slot 311. This setting makes the entire structure more stable and facilitates installation and maintenance. The lower end of the crushed stone layer 2 is movably connected to the upper end of the roadbed 1 to ensure that it is tightly integrated with the roadbed 1 to form a whole. Through this setting, water penetration can be effectively prevented, the roadbed 1 can be protected from damage, and the service life of the road can be extended.

[0030] Then, a protective plate 610 is installed above the filter grille 66. Its main function is to prevent debris from entering the drainage well 61 and to protect the filter grille 66 from damage caused by external factors. The protective plate 610 is usually made of corrosion-resistant and high-strength materials to ensure its stability and durability in harsh environments. The edge of the protective plate 610 is connected to the upper edge of the drainage well 61 with screws, so that the protective plate 610 can be firmly fixed to the drainage well 61 and prevent it from shifting under the impact of water flow. As an important component of the drainage well 61, the selection of materials for the drainage pipe 63 is also crucial. The drainage pipe 63 is usually made of materials with sufficient strength and durability to withstand long-term water flow impact and possible chemical corrosion. The inner wall of the drainage pipe 63 is smooth to reduce water flow resistance and improve drainage efficiency. The other end of the drainage pipe 63 is usually connected to the municipal drainage system to ensure that rainwater can be discharged smoothly. In order to further improve the efficiency and reliability of the drainage system, the round holes 62 provided in the inner wall of the drainage well 61 can discharge the water that has penetrated into the permeable asphalt layer 9. To prevent rainwater from accumulating in the breathable asphalt layer, multiple sets of fixing bolts 68 are inserted through the bottom of the filter grid 66 and extend to its top. Nuts 69 are threaded onto the periphery of the fixing bolts 68 and at the top of the filter grid 66. The inner wall of the nuts 69 is threaded to cooperate with the fixing bolts 68. The cooperation of the fixing bolts 68 and nuts 69 prevents the filter grid 66 from being washed away by heavy rain, facilitating cleaning and maintenance by staff. The installation and maintenance of the entire drainage system must follow certain specifications and standards to ensure the long-term stable operation of the system. During installation, the connection of each component must be firm and reliable. The use of the sealing layer 65 and fixing bolts 68 can ensure the sealing of the filter grid 66 and the drainage well 61, extending their service life. Regular inspection and maintenance are necessary to promptly identify and resolve potential problems, ensuring the efficiency and safety of the drainage system. The above is the working process of the entire device. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seepage prevention design structure for municipal engineering roads, comprising a roadbed (1), characterized in that: The roadbed (1) is provided with a crushed stone layer (2) at the upper end, a filter mechanism (3) is provided at the upper end of the crushed stone layer (2), a waterproof wall (4) is fixedly connected to both sides of the lower end of the filter mechanism (3), a waterproof wall (5) is snapped to both sides of the upper end of the filter mechanism (3), a protective mechanism (6) is fixedly connected to one side of the waterproof wall (5), a three-component soil (7) is movably connected to the upper end of the filter mechanism (3), a concrete layer (8) is fixedly connected to the upper end of the three-component soil (7), and a permeable asphalt layer (9) is fixedly connected to the upper end of the concrete layer (8). The filtration mechanism (3) includes a mud layer (31), the lower end of which is movably connected to the upper end of the gravel layer (2). A protective layer (32) is provided at the upper end of the mud layer (31), and a non-woven geotextile layer (33) is provided at the upper end of the protective layer (32). A drainage mesh (34) is fixedly connected to the upper end of the non-woven geotextile layer (33), and a filling layer (35) is fixedly connected to the upper end of the drainage mesh (34). 5) has a filter layer (36) fixed to its upper end. Side plates (37) are fixed to both sides of the filter layer (36). A drain hole (38) is opened in the middle of the side plate (37). A support base (39) is fixed to one side of the side plate (37). A drain outlet (310) is embedded in the upper end of the support base (39). A slot (311) is opened through the upper end of the support base (39). A card block (312) is inserted into the inner wall of the slot (311).

2. The municipal engineering road seepage prevention design structure according to claim 1, characterized in that: The lower end of the crushed stone layer (2) is fixedly connected to the upper end of the roadbed (1), and the lower end of the filter mechanism (3) is fixedly connected to the upper end of the crushed stone layer (2).

3. The municipal engineering road seepage prevention design structure according to claim 1, characterized in that: The upper end of the mud layer (31) is fixedly connected to the lower end of the protective layer (32), and the upper end of the protective layer (32) is fixedly connected to the lower end of the non-woven geotextile layer (33).

4. The municipal engineering road seepage prevention design structure according to claim 3, characterized in that: The upper end of the support base (39) is adapted to the lower end of the second waterproof wall (5) and has the same drainage outlet (310).

5. A municipal engineering road seepage prevention design structure according to claim 1, characterized in that: The protective mechanism (6) includes a drainage well (61), one side of which is fixedly connected to one side of the second waterproof wall (5). A round hole (62) is provided on one side of the inner wall of the drainage well (61), and a drainage pipe (63) is provided on the other side of the drainage well (61). A square groove (64) is embedded in the upper end of the drainage well (61). A sealing layer (65) is movably connected to the inner wall of the square groove (64). A filter grid (66) is fixedly connected to the inner wall of the sealing layer (65). A water flow hole (67) is opened through the inner wall of the filter grid (66). Fixing bolts (68) are fixedly connected around the bottom wall of the square groove (64). Nuts (69) are threadedly connected to the outer wall of the fixing bolts (68). A protective plate (610) is bolted to the upper end of the drainage well (61).

6. The municipal engineering road seepage prevention design structure according to claim 5, characterized in that: The inner wall of the drainage well (61) is connected to the outer wall of the circular hole (62) through one side, and one end of the drainage pipe (63) is connected to the other side of the drainage well (61).

7. A municipal engineering road seepage prevention design structure according to claim 5, characterized in that: The filter grid (66) has through holes around its upper end that are compatible with the fixing bolts (68).

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