Composite municipal road and construction method thereof

Abstract

The present invention discloses a composite municipal road and a construction method thereof, including a road body, a foundation pit is provided on one side of the road body, a foundation pit box beam is pre-buried in the foundation pit, a shock-absorbing water cavity is formed in the foundation pit box beam, a drainage groove communicating with the shock-absorbing water cavity is formed in the foundation pit box beam above the shock-absorbing water cavity, a lateral water inlet extending to one side above the road body is connected to the drainage groove, a filter assembly for filtering debris is provided between the lateral water inlet and the drainage groove, a drainage pipe is connected to the foundation pit box beam, a first opening and closing member is provided on the drainage pipe, a plurality of shock-absorbing support beams are distributed and supported in the shock-absorbing water cavity, and the shock-absorbing support beams are resonant phononic crystal structures. The present invention has the following advantages and effects: the present invention can realize the recycling of water resources and use them for shock absorption, thereby realizing green and sustainable development, without affecting the normal rest of residents near the road, and the road quality is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal engineering, and in particular to a composite municipal road and a construction method thereof. Background Art

[0002] Municipal engineering refers to various projects for the construction and management of urban public facilities, covering many aspects of urban life, and is of great significance for ensuring the normal operation of the city, improving the quality of life of residents, and promoting the development of the city. Municipal engineering includes municipal road engineering, which includes the construction and maintenance of urban roads, bridges, tunnels, highways, etc. It is an important support for urban development and plays an irreplaceable role in improving the comprehensive competitiveness of the city and the happiness of residents.

[0003] In many urban scenes, many residential areas are close to urban roads. In order to ensure smooth commuting on urban roads and reduce pollution, many large engineering vehicles are required to carry out transportation operations at night. Due to the large size and heavy weight of engineering vehicles, this will cause great vibrations when the vehicles pass through roads near residential areas, thus affecting the normal rest of residents. In addition, rainwater is also a water resource that can be recycled. If it can be recycled, it will also help reduce the waste of water resources and achieve green and sustainable development. Based on the above problems, the present invention was born. Summary of the invention

[0004] The purpose of the present invention is to provide a composite municipal road, which can realize the recycling of water resources and use them for shock absorption, thereby achieving green and sustainable development without affecting the normal rest of residents along the road.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a composite municipal road, including a road body, a foundation pit is provided on one side of the road body, a foundation pit box beam is pre-buried in the foundation pit, a shock-absorbing water cavity is formed in the foundation pit box beam, a drainage ditch communicated with the shock-absorbing water cavity is formed in the foundation pit box beam above the shock-absorbing water cavity, the drainage ditch is connected to a lateral water inlet extending to one side above the road body, a filter assembly for filtering debris is provided between the lateral water inlet and the drainage ditch, a drainage pipe is connected to the foundation pit box beam, a first opening and closing piece is provided on the drainage pipe, a plurality of shock-absorbing support beams are distributed and supported in the shock-absorbing water cavity, and the shock-absorbing support beams are resonant phononic crystal structures.

[0006] By adopting the above technical solution, rainwater enters the lateral water inlet and flows into the shock-absorbing water cavity for storage after passing through the filter assembly and the drainage ditch in turn. Under the action of gravity, the rainwater will first fill the shock-absorbing water cavity, and then the excess rainwater will be discharged from the drainage ditch. The debris in the rainwater is filtered by the provided filter assembly to prevent the rainwater from clogging the drainage ditch and the shock-absorbing water cavity. Since the water body has certain damping characteristics, when the vibration on the main body of the road is directed toward the shock-absorbing water cavity with water on the side, the movement of the water body and the internal friction can consume the energy of the vibration, thereby achieving a vibration reduction effect. When the water in the shock-absorbing water cavity needs to be used, the first opening and closing piece is opened and the water is discharged through the drain pipe to realize the recycling of water resources, thereby achieving green and sustainable development while not affecting the normal rest of residents along the road.

[0007] It is further configured as follows: the shock-absorbing support beam cooperates with the foundation pit box beam to divide the shock-absorbing water chamber into a sedimentation chamber located below the drainage ditch and a sewage chamber located below the sedimentation chamber. The drainage ditch and the sedimentation chamber are connected through an upper flow gap, and the sedimentation chamber and the sewage chamber are connected through a lower flow gap. The drainage pipe is connected to the sedimentation chamber, and a sewage pipe is connected to the sewage chamber and a second opening and closing member is provided on the sewage pipe. A water storage and cleaning chamber is formed in the drainage ditch and the water storage and cleaning chamber is connected to the lateral water inlet. The water storage and cleaning chamber is connected to the sewage chamber through a cleaning pipe and an opening and closing component is provided on the cleaning pipe.

[0008] By adopting the above technical solution, rainwater enters the shock-absorbing water chamber for storage and the sediment in the rainwater is precipitated in the dirt chamber over time, and the relatively clear water after precipitation is stored in the sedimentation chamber. Through this structure, the water in the shock-absorbing water chamber can have a wider secondary use. After the water in the sedimentation chamber is discharged through the drain pipe, the second opening and closing member is opened to discharge the water in the dirt chamber, and then the opening and closing assembly is opened to allow the water in the water storage cleaning chamber to flush the dirt in the dirt chamber, so as to ensure the cleanliness of the dirt chamber and avoid the long-term accumulation of dirt in the dirt chamber and blockage of the sewage pipe, thereby ensuring the feasibility and reliability of the structure.

[0009] It is further configured as follows: the shock-absorbing support beam includes an outer frame, a scattering cube arranged in the center of the outer frame and with an outer contour proportionally reduced by the outer frame, and an elastic component connecting the outer frame and the scattering cube, the elastic component includes two groups of first elastic components and two groups of second elastic components, the two groups of first elastic components and the two groups of second elastic components are arranged in a cross distribution around the periphery of the scattering cube in pairs, the elastic component and the outer frame are made of organic glass, and the scattering cube is made of aluminum.

[0010] It is further configured as follows: each group of the first elastic components is composed of two groups of first elastic components, the two groups of the first elastic components are symmetrical structures along the direction from the scattering cube to the outer frame square frame, the first elastic components include a first connecting segment connected to the scattering cube and extending to the vicinity of the outer frame square frame, a second connecting segment connected to the first connecting segment, a third connecting segment connected to the second connecting segment and extending to the vicinity of the scattering cube, and a plurality of fourth connecting segments connecting the third connecting segment and the outer frame square frame, the first connecting segment is inclined and the third connecting segment is parallel to the first connecting segment, and adjacent fourth connecting segments are perpendicular to each other and are arranged in a serpentine distribution.

[0011] It is further configured as follows: the second elastic component includes a fifth connecting segment connecting the middle position of the side of the scattering cube, a seventh connecting segment connecting the middle position of the side of the outer frame, and a plurality of sixth connecting segments connecting the fifth connecting segment and the seventh connecting segment, and adjacent sixth connecting segments are perpendicular to each other and are arranged in a serpentine shape.

[0012] By adopting the above technical solution, four groups of folded elastic components act as elastic elements, connecting the middle scattering cube to the outer frame. By selecting the appropriate number of folds to adjust the effective stiffness of the support beam, the transmitted resonant frequency can be effectively reduced to obtain a band gap in the low-frequency range. An artificial composite material composed of two or more materials arranged periodically is called a phononic crystal. The multi-section bending structure solves the problem that a larger lattice size is required for phononic crystals to produce a Bragg band gap in the lower frequency domain. Using a smaller lattice size to produce a band gap at a larger wavelength can achieve excellent results in lower-frequency sound insulation, noise reduction and vibration reduction.

[0013] It is further configured as follows: a dirt-isolating membrane is wound around a rotating shaft at a position in the sedimentation chamber away from the drain pipe, a sliding rod is provided at the outer end of the dirt-isolating membrane, a guiding groove is provided in the sedimentation chamber for guiding the sliding rod to reciprocate toward one side of the drain pipe, a guiding ball close to the drain pipe is connected to the sliding rod through a traction rope, a guide ring is provided at one end of the drain pipe connected to the sedimentation chamber for the traction rope to pass through, a reset torsion spring is connected to the rotating shaft, and when the dirt-isolating membrane is in the expanded state, the dirt-isolating membrane covers the lower flow gap.

[0014] By adopting the above technical solution, when the water in the sedimentation chamber is not subjected to force, the dirt-isolating membrane is wound around the rotating shaft through the reset torsion spring. When the first opening and closing member is opened, the water in the sedimentation chamber is discharged through the drain pipe and generates suction to drive the guide ball into the drain pipe. At this time, the suction acting on the guide ball is greater than the force of the reset torsion spring, so as to pull the dirt-isolating membrane to cover the lower flow gap, thereby reducing the probability that the water in the sedimentation chamber will carry the dirt in the dirt chamber out of the lower flow gap during the discharge process, thereby ensuring the cleanliness of the water discharged from the sedimentation chamber and making it have a wider range of secondary uses. When the water in the sedimentation chamber is drained, the suction is less than the force of the reset torsion spring, so that the dirt-isolating membrane is reset and wound around the rotating shaft under the action of the reset torsion spring, thereby meeting the subsequent sedimentation operation of entering the water body.

[0015] It is further configured as follows: the opening and closing assembly includes a one-way cover plate hinged to the cleaning pipe and a pull rope connected to the one-way cover plate and extending out of the foundation pit box beam.

[0016] By adopting the above technical solution, when the opening and closing assembly is to be opened, the one-way cover can be opened by pulling the pull rope, and when the pull rope is released, the one-way cover can be automatically reset and closed.

[0017] It is further configured as follows: the filtering assembly includes a grille arranged on the foundation pit box beam and located between the drainage ditch and the lateral water inlet, a retention area formed above the grille, and a discharge port connecting the retention area with the outside world, the discharge port and the lateral water inlet are located on both sides of the retention area, and the grille is gradually inclined downward from the lateral water inlet to the discharge port, the foundation pit box beam is located below the discharge port to form a collecting chamber, and a sealing plate is provided at the opening of the collecting chamber.

[0018] By adopting the above technical solution, the debris in the rainwater is retained in the retention area above the grille under the action of the grille, and because the rainwater entering from the lateral water inlet has impact potential energy, the above structure can slowly push the debris accumulated above the retention area to the side of the discharge port, so that the debris can enter the collection chamber through the discharge port, thereby realizing automatic centralized collection of the debris.

[0019] Another object of the present invention is to provide a construction method for a composite municipal road, by which a high-quality installation of the above-mentioned road can be ensured.

[0020] The above technical objectives of the present invention are achieved through the following technical solutions: A construction method of a composite municipal road, comprising the following steps:

[0021] S1. Divide the foundation pit and road excavation area according to the drawings;

[0022] S2, hoisting and placing the prefabricated foundation pit box beam in the foundation pit and leveling and installing the foundation pit box beam, then filling the gap between the foundation pit and the foundation pit box beam with concrete sand and gravel materials, and then installing the drainage pipe and sewage pipe;

[0023] S3. A collection cavity is machined above the foundation pit box beam through a prefabricated template and a sealing plate is placed on the opening of the collection cavity so that the height of the sealing plate is not higher than the highest position of the foundation pit box beam;

[0024] S4. Laying the base material on the road surface. The base material is mainly a mixture of stabilized crushed stone, lime soil and cement and is laid in layers and compacted;

[0025] S5. Lay an asphalt surface layer on the base material and make the height of the asphalt surface layer lower than or equal to the horizontal height of the lateral water inlet. The asphalt surface layer is laid in multiple layers and each layer is compacted.

[0026] By adopting the above technical solution, the processing quality of the road and the above structure can be guaranteed.

[0027] In summary, the present invention has the following beneficial effects: the present invention can realize the recycling of water resources and utilize them for shock absorption, thereby achieving green and sustainable development without affecting the normal rest of residents living along the road and improving the road quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment;

[0029] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0030] Figure 3 It is a partial structural schematic diagram of an embodiment;

[0031] Figure 4 It is a structural schematic diagram of a shock-absorbing support beam in an embodiment;

[0032] Figure 5 It is a structural schematic diagram of another perspective of the embodiment;

[0033] Figure 6 for Figure 5 Enlarged view of part B in the middle.

[0034] In the figure: 1, road body; 2, foundation pit; 3, foundation pit box beam; 4, drainage ditch; 5, lateral water inlet; 6, filter assembly; 61, grille; 62, retention area; 63, discharge outlet; 7, drainage pipe; 8, first opening and closing member; 9, shock-absorbing support beam; 91, outer frame; 92, scattering cube; 93, first elastic member; 931, first connecting section; 932, second connecting section; 933, third connecting section; 934, fourth connecting section; 94, second elastic assembly; 941, fifth connecting section ; 942, seventh connecting section; 943, sixth connecting section; 101, sedimentation chamber; 102, dirt chamber; 11, upper flow gap; 12, lower flow gap; 13, sewage pipe; 14, second opening and closing piece; 15, water storage cleaning chamber; 16, cleaning pipeline; 17, opening and closing assembly; 171, one-way cover plate; 172, pull rope; 18, rotating shaft; 19, dirt isolation membrane; 20, sliding rod; 21, guide slide groove; 22, traction rope; 23, guide ball; 24, guide ring; 25, collecting chamber; 26, sealing plate. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1

[0037] refer to Figures 1 to 6 A composite municipal road comprises a road body 1, a foundation pit 2 is provided on one side of the road body 1, a prefabricated foundation pit box beam 3 is embedded in the foundation pit 2, a shock-absorbing water cavity is provided in the foundation pit box beam 3, a drainage ditch 4 communicating with the shock-absorbing water cavity is provided above the shock-absorbing water cavity in the foundation pit box beam 3, and a lateral water inlet 5 extending to one side above the road body 1 is connected to the drainage ditch 4. A filter assembly 6 for filtering debris is provided between the lateral water inlet 5 and the drainage ditch 4, a drainage pipe 7 is fixedly installed on the foundation pit box beam 3, and a first opening and closing member 8 is provided on the drainage pipe 7, and a plurality of shock-absorbing support beams 9 are fixedly distributed and supported in the shock-absorbing water cavity, and the shock-absorbing support beams 9 are resonant phononic crystal structures.

[0038] The shock-absorbing support beam 9 cooperates with the foundation pit box beam 3 to divide the shock-absorbing water chamber into a sedimentation chamber 101 located below the drainage ditch 4 and a sewage chamber 102 located below the sedimentation chamber 101. The drainage ditch 4 and the sedimentation chamber 101 are connected through the upper flow gap 11, and the sedimentation chamber 101 and the sewage chamber 102 are connected through the lower flow gap 12. The drainage pipe 7 is connected to the sedimentation chamber 101, and a sewage pipe 13 is fixedly connected to the sewage chamber 102, and a second opening and closing member 14 is installed on the sewage pipe 13. A water storage cleaning chamber 15 is formed in the drainage ditch 4 and the water storage cleaning chamber 15 is connected to the lateral water inlet 5. The water storage cleaning chamber 15 is connected to the sewage chamber 102 through a cleaning pipe 16, and an opening and closing assembly 17 is provided on the cleaning pipe 16. The first opening and closing member 8 and the second opening and closing member 14 are ball valves.

[0039] The shock-absorbing support beam 9 includes an outer frame 91, a scattering cube 92 disposed in the center of the outer frame 91 and having an outer contour proportionally reduced by the outer frame 91, and an elastic member connecting the outer frame 91 and the scattering cube 92. The elastic member includes two groups of first elastic components and two groups of second elastic components 94, which are arranged around the outer periphery of the scattering cube 92 in a cross distribution corresponding to each other, and the elastic member is integrally arranged with the outer frame 91 and is made of organic glass, and the scattering cube 92 is made of aluminum.

[0040] Each group of first elastic components is composed of two groups of first elastic members 93, and the two groups of first elastic members 93 are symmetrical structures along the direction from the scattering cube 92 to the outer frame 91. The first elastic member 93 includes a first connecting section 931 fixedly connected to the scattering cube 92 and extending to the vicinity of the outer frame 91, a second connecting section 932 integrally connected to the first connecting section 931, a third connecting section 933 integrally connected to the second connecting section 932 and extending to the vicinity of the scattering cube 92, and a plurality of fourth connecting sections 934 integrally connected to the third connecting section 933 and the outer frame 91. The first connecting section 931 is arranged obliquely, and the third connecting section 933 is arranged parallel to the first connecting section 931, and adjacent fourth connecting sections 934 are perpendicular to each other and arranged in a serpentine distribution.

[0041] The second elastic component 94 includes a fifth connection segment 941 fixedly connected to the middle position of the side of the scattering cube 92, a seventh connection segment 942 integrally connected to the middle position of the side of the outer frame 91, and a plurality of sixth connection segments 943 integrally connected to the fifth connection segment 941 and the seventh connection segment 942. Adjacent sixth connection segments 943 are perpendicular to each other and are arranged in a serpentine shape.

[0042] A dirt-isolating film 19 is wound around a position in the sedimentation chamber 101 away from the drain pipe 7 through a rotating shaft 18. A sliding rod 20 is fixedly arranged at the outer end of the dirt-isolating film 19. A guiding chute 21 for guiding the sliding rod 20 to reciprocate toward the side of the drain pipe 7 is provided in the sedimentation chamber 101. Both ends of the sliding rod 20 are slidably arranged in the guiding chute 21. A guiding ball 23 close to the drain pipe 7 is fixedly connected to the sliding rod 20 through a traction rope 22. A guide ring 24 for the traction rope 22 to pass through is fixedly arranged at one end of the drain pipe 7 connected to the sedimentation chamber 101. A reset torsion spring is connected to the rotating shaft 18. The reset torsion spring is sleeved on the rotating shaft 18 and one end is fixedly connected to the rotating shaft 18 and the other end is fixedly connected to the wall of the sedimentation chamber 101. When the dirt-isolating film 19 is in the unfolded state, the dirt-isolating film 19 covers the lower flow gap 12. The dirt-isolating film 19 is a waterproof film or a waterproof cloth, and the guiding ball 23 is a plastic ball or a rubber ball.

[0043] The opening and closing assembly 17 includes a one-way cover plate 171 hinged to the cleaning pipe 16 and a pull rope 172 with one end fixedly connected to the one-way cover plate 171 and the other end passing through the foundation pit box beam 3. The filter assembly 6 includes a grille 61 fixedly arranged on the foundation pit box beam 3 and located between the drainage groove 4 and the lateral water inlet 5, a retention area 62 formed above the grille 61, and a discharge port 63 opened on the foundation pit box beam 3 and connecting the retention area 62 with the outside. The discharge port 63 and the lateral water inlet 5 are located on both sides of the retention area 62, and the grille 61 is gradually inclined downward from the lateral water inlet 5 to the discharge port 63. The position of the foundation pit box beam 3 below the discharge port 63 forms a collection chamber 25, and the opening of the collection chamber 25 is covered with a sealing plate 26. The drainage pipe 7 and the sewage pipe 13 both extend into the sewer, and the first opening and closing member 8 and the second opening and closing member 14 are both located in the sewer.

[0044] Embodiment 2

[0045] A construction method for a composite municipal road comprises the following steps:

[0046] S1. Divide the foundation pit 2 and the road excavation area according to the drawings;

[0047] S2, hoisting the prefabricated foundation pit box beam 3 to the foundation pit 2 and leveling and installing the foundation pit box beam 3, then filling the gap between the foundation pit 2 and the foundation pit box beam 3 with concrete sand and gravel materials, and then installing the drainage pipe 7 and the sewage pipe 13;

[0048] S3, a collecting cavity 25 is processed above the foundation pit box beam 3 by a prefabricated template and a sealing plate 26 is covered at the opening of the collecting cavity 25 so that the height of the sealing plate 26 is not higher than the highest position of the foundation pit box beam 3;

[0049] S4. Laying the base material on the road surface. The base material is mainly a mixture of stabilized crushed stone, lime soil and cement and is laid in layers and compacted;

[0050] S5. Lay an asphalt surface layer on the base material and make the height of the asphalt surface layer lower than or equal to the height of the lateral water inlet 5. The asphalt surface layer is laid in multiple layers and each layer is compacted.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A composite municipal road, comprising a road body (1), characterized in that: A foundation pit (2) is provided on one side of the road body (1), a foundation pit box beam (3) is pre-buried in the foundation pit (2), a shock-absorbing water cavity is formed in the foundation pit box beam (3), a drainage groove (4) communicating with the shock-absorbing water cavity is formed in the foundation pit box beam (3) above the shock-absorbing water cavity, a lateral water inlet (5) extending to one side above the road body (1) is connected to the drainage groove (4), a filter assembly (6) for filtering debris is provided between the lateral water inlet (5) and the drainage groove (4), a drainage pipe (7) is connected to the foundation pit box beam (3), and a first opening and closing member (8) is provided on the drainage pipe (7), a plurality of shock-absorbing support beams (9) are distributed and supported in the shock-absorbing water cavity, and the shock-absorbing support beams (9) are resonant phononic crystal structures, and the shock-absorbing support beams (9) cooperate with the foundation pit box beam (3) to divide the shock-absorbing water cavity into A sedimentation chamber (101) is located below the drainage groove (4) and a sewage chamber (102) is located below the sedimentation chamber (101); the drainage groove (4) and the sedimentation chamber (101) are connected via an upper flow gap (11), and the sedimentation chamber (101) and the sewage chamber (102) are connected via a lower flow gap (12); the drainage pipe (7) is connected to the sedimentation chamber (101); the sewage chamber (102) is connected to a sewage pipe (13), and the sewage pipe (13) is provided with a second opening and closing member (14); a water storage cleaning chamber (15) is formed in the drainage groove (4), and the water storage cleaning chamber (15) is connected to the lateral water inlet (5); the water storage cleaning chamber (15) and the sewage chamber (102) are connected via a cleaning pipe (16), and the cleaning pipe (16) is provided with an opening and closing component (17).

2. The composite municipal road according to claim 1, characterized in that: The shock-absorbing support beam (9) comprises an outer frame (91), a scattering cube (92) arranged at the center of the outer frame (91) and having an outer contour proportionally reduced by the outer frame (91), and an elastic component connecting the outer frame (91) and the scattering cube (92); the elastic component comprises two groups of first elastic components and two groups of second elastic components (94); the two groups of first elastic components and the two groups of second elastic components (94) are arranged around the outer periphery of the scattering cube (92) in a cross distribution in pairs; the elastic component and the outer frame (91) are made of organic glass, and the scattering cube (92) is made of aluminum.

3. The composite municipal road according to claim 2, characterized in that: Each group of the first elastic components is composed of two groups of first elastic components (93), the two groups of the first elastic components (93) are symmetrical structures along the direction from the scattering cube (92) to the outer frame (91), the first elastic components (93) include a first connecting section (931) connected to the scattering cube (92) and extending to the vicinity of the outer frame (91), a second connecting section (932) connected to the first connecting section (931), a third connecting section (933) connected to the second connecting section (932) and extending to the vicinity of the scattering cube (92), and a plurality of fourth connecting sections (934) connecting the third connecting section (933) and the outer frame (91), the first connecting section (931) is arranged in an inclined manner, the third connecting section (933) and the first connecting section (931) are arranged in parallel, and adjacent fourth connecting sections (934) are perpendicular to each other and arranged in a serpentine distribution.

4. The composite municipal road according to claim 2, characterized in that: The second elastic component (94) comprises a fifth connecting segment (941) connected to the middle position of the side of the scattering cube (92), a seventh connecting segment (942) connected to the middle position of the side of the outer frame (91), and a plurality of sixth connecting segments (943) connecting the fifth connecting segment (941) and the seventh connecting segment (942), wherein adjacent sixth connecting segments (943) are perpendicular to each other and are arranged in a serpentine distribution.

5. The composite municipal road according to claim 1, characterized in that: A dirt-isolating membrane (19) is wound around a position in the sedimentation chamber (101) away from the drain pipe (7) via a rotating shaft (18); a sliding rod (20) is provided at the outer end of the dirt-isolating membrane (19); a guiding groove (21) is provided in the sedimentation chamber (101) for guiding the sliding rod (20) to reciprocate toward one side of the drain pipe (7); a guiding ball (23) close to the drain pipe (7) is connected to the sliding rod (20) via a traction rope (22); a guide ring (24) for the traction rope (22) to pass through is provided at one end of the drain pipe (7) connected to the sedimentation chamber (101); a reset torsion spring is connected to the rotating shaft (18); when the dirt-isolating membrane (19) is in an expanded state, the dirt-isolating membrane (19) covers the lower flow gap (12).

6. The composite municipal road according to claim 1, characterized in that: The opening and closing assembly (17) comprises a one-way cover plate (171) hinged to the cleaning pipe (16) and a pull rope (172) connected to the one-way cover plate (171) and extending out of the foundation pit box beam (3).

7. The composite municipal road according to claim 1, characterized in that: The filter assembly (6) comprises a grille (61) arranged on the foundation pit box beam (3) and located between the drainage groove (4) and the lateral water inlet (5), a retention area (62) formed above the grille (61), and a discharge port (63) connecting the retention area (62) with the outside, the discharge port (63) and the lateral water inlet (5) are located on both sides of the retention area (62), and the grille (61) is gradually inclined downward from the lateral water inlet (5) to the discharge port (63), and a collecting chamber (25) is formed at a position below the discharge port (63) of the foundation pit box beam (3), and a sealing plate (26) is provided at the opening of the collecting chamber (25).

8. A construction method for a composite municipal road, based on the composite municipal road according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Divide the foundation pit (2) and the road excavation area according to the drawings; S2, hoisting and placing the prefabricated foundation pit box beam (3) in the foundation pit (2) and leveling and installing the foundation pit box beam (3), then filling the gap between the foundation pit (2) and the foundation pit box beam (3) with concrete sand and gravel materials, and then installing the drainage pipe (7) and the sewage pipe (13); S3, a collecting cavity (25) is formed above the foundation pit box beam (3) by using a prefabricated template, and a sealing plate (26) is placed on the opening of the collecting cavity (25) so that the height of the sealing plate (26) is not higher than the highest position of the foundation pit box beam (3); S4. Laying the base material on the road surface. The base material is mainly a mixture of stabilized crushed stone, lime soil and cement and is laid in layers and compacted; S5. Lay an asphalt surface layer on the base material and make the height of the asphalt surface layer lower than or equal to the horizontal height of the lateral water inlet (5). The asphalt surface layer is laid in multiple layers and each layer is compacted.

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