阅读说明：本技术 透水市政道路及其施工方法 (Water-permeable municipal road and construction method thereof ) 是由 李世安 于 2021-01-14 设计创作，主要内容包括：本申请涉及一种透水市政道路及其施工方法,其包括自上而下依次分布的细粒式透水沥青混凝土层、中粒式透水沥青混凝土层、透水橡胶沥青应力吸收层、透水混凝土层、碎石基层、回填层一、回填层二、中砂垫层和粗砂垫层,所述回填层一采用素填土回填形成且其压实系数大于0.85,所述回填层二为采用中砂、细砂、粒径小于40mm的级配砂石回填形成且厚度为100-200mm。本申请能够有效的减小雨水冲刷对道路内部结构的影响。(The application relates to a permeable municipal road and a construction method thereof, which comprises a fine grain type permeable asphalt concrete layer, a medium grain type permeable asphalt concrete layer, a permeable rubber asphalt stress absorbing layer, a permeable concrete layer, a broken stone base layer, a first backfill layer, a second backfill layer, a medium sand cushion layer and a coarse sand cushion layer which are sequentially distributed from top to bottom, wherein the first backfill layer is formed by backfilling plain filling soil, the compaction coefficient of the first backfill layer is greater than 0.85, the second backfill layer is formed by backfilling medium sand, fine sand and graded gravel with the particle size smaller than 40mm, and the thickness of the backfill layer is 100-doped 200 mm. This application can effectually reduce the influence of rainwash to road inner structure.)

1. The utility model provides a town road permeates water which characterized in that: the concrete filling material comprises a fine grain type permeable asphalt concrete layer (11), a medium grain type permeable asphalt concrete layer (12), a permeable rubber asphalt stress absorbing layer (13), a permeable concrete layer (14), a gravel base layer (15), a backfill layer I (16), a backfill layer II (17), a medium sand cushion layer (18) and a coarse sand cushion layer (19) which are sequentially distributed from top to bottom, wherein the backfill layer I (16) is formed by backfilling plain filling soil, the compaction coefficient of the backfill layer I is greater than 0.85, the backfill layer II (17) is formed by backfilling medium sand, fine sand and graded gravel with the particle size smaller than 40mm, and the thickness of the backfill layer II is 100-sand 200 mm.

2. The water-permeable municipal road according to claim 1, wherein: impervious foundation bed (2) have still been laid to the top of granule formula bituminous concrete layer (11) of permeating water, foundation bed (2) are seted up and are followed catch basin (21) that road length direction extends and the degree of depth of catch basin (21) is less than 20mm, catch basin (21) are open structure and its both sides opening limit along road length direction is provided with permeable water curb (22), two respectively permeable water curb (22) have been seted up mounting groove (221), two to the last border of inclining in opposite directions to permeable water curb (22) mounting groove (221) have been set up braced frame subassembly (3), a plurality of permeable bricks (31) have been laid in braced frame subassembly (3).

3. The water-permeable municipal road according to claim 2, wherein: lay a plurality of pipe (4) of permeating water that distribute along road length direction in rubble basic unit (15), the both ends of tub (4) of permeating water are upwards buckled respectively then are buckled in opposite directions and penetrate to permeating water in curb (22), it communicates in catch basin (21) to permeate water pipe (4).

4. The water-permeable municipal road according to claim 3, wherein: drain pipe (5) that extend along road length direction are worn to be equipped with in backfill layer two (17) and the medium sand bed course (18), the road shoulder (22) that permeates water is worn to be equipped with a plurality of overflow pipes (222) that distribute along road length direction, the one end of overflow pipe (222) communicates in catch basin (21), overflow pipe (222) communicate in the tip of catch basin (21) be located the top of permeating water pipe (4), the other end of overflow pipe (222) communicates in drain pipe (5).

5. The water-permeable municipal road according to claim 2, wherein: support frame subassembly (3) are including braced frame (32) that distribute along road length direction, braced frame (32) internal forming has a plurality of installing ports (321), installing port (321) are kept away from the opening border of ground one side and have been seted up mounting ring groove (322), the border of brick (31) of permeating water is set up in mounting ring groove (322).

6. The water-permeable municipal road according to claim 5, wherein: an anti-cracking net (323) positioned below the water permeable bricks (31) is fixedly connected in the mounting opening (321).

7. The water-permeable municipal road according to claim 5, wherein: road shoulder (22) permeate water has preset a plurality of installation poles (223) that distribute along road length direction, installation pole (223) are vertical setting and its lower extreme penetrate to rubble basic unit (15) in, the upper end of installation pole (223) penetrates to mounting groove (221) in, the upper end of installation pole (223) is frustum column structure and tip up, braced frame (32) are set up in the border of mounting groove (221) and are seted up the mounting hole of a plurality of adaptations installation pole (223).

8. The water-permeable municipal road according to claim 7, wherein: a plurality of with installation pole (223) with the buffer ring groove (224) of the central axis, same are seted up to the upper end of installation pole (223) a plurality of spread groove (225) that set up around installation pole (223) are seted up to installation pole (223), spread groove (225) communicate in a plurality of buffer ring groove (224), it is same a plurality of buffer ring groove (224) and spread groove (225) intussuseption of installation pole (223) are filled with buffer rubber spare (226) of adaptation, buffer rubber spare (226) are made for meeting water inflation rubber.

9. A construction method of a permeable municipal road is characterized by comprising the following steps: the method comprises the following steps: s1, construction and paying off: confirming a line according to a design drawing and carrying out construction paying-off; s2, excavating a pipe groove: excavating a pipe groove according to the line, wherein the depth of the pipe groove is 1500-1700 mm; s3, construction of a drain pipe foundation: the pipeline foundation is formed by paving and tamping medium and coarse sand to form a coarse sand cushion layer (19), the thickness of the coarse sand cushion layer (19) is 170mm, and the compaction coefficient is 0.90; s4, laying a pipeline: laying a drain pipe (5) and an overflow pipe (222) communicated with the drain pipe (5) on the upper surface of a coarse sand cushion layer (19), then laying medium sand or coarse sand on the side part of the drain pipe (5) to form a medium sand cushion layer (18), wherein the thickness of the medium sand cushion layer (18) is 120mm, the compaction coefficient is 0.95, then backfilling a pipe groove above the medium sand cushion layer (18) by using medium sand, fine sand and graded sandstone with the particle size smaller than 40mm, and covering the drain pipe (5) to form a backfill layer II (17) with the thickness of 100 plus and 200 mm; s5, upper layer construction: backfilling plain filling soil and forming a backfill layer I (16) with the thickness of 350mm above a backfill layer II (17), wherein the compaction coefficient is larger than 0.85, 4% of permeable cement stabilized macadam is adopted above the backfill layer I (16) to form a macadam base layer (15) with the thickness of 200mm, a permeable pipe (4) is laid in the macadam base layer (15), C30 permeable concrete is laid above the macadam base layer (15) to form a permeable concrete layer (14) with the thickness of 250mm, permeable rubber asphalt is laid above the permeable concrete layer (14) to form a permeable rubber asphalt stress absorption layer (13) with the thickness of 20mm, then a medium-grain type permeable asphalt concrete layer (12) with the thickness of 60mm and a fine-grain type permeable asphalt concrete layer (11) with the thickness of 40mm are sequentially laid above the permeable rubber asphalt stress absorption layer (13), and during construction, the fine-grain type permeable asphalt concrete layer (11) is formed, A plurality of mounting rods (223) with the upper ends penetrating out are preset in the medium-grain type pervious asphalt concrete layer (12), the pervious rubber asphalt stress absorbing layer (13), the pervious concrete layer (14) and the gravel base layer (15); s6, constructing a foundation layer: adopt C30 concrete placement to form basic layer (2) and catch basin (21), adopt C30 to pour at the both sides border of basic layer (2) and form pervious road shoulder (22) and form mounting groove (221), set up a plurality of braced frames (32) in mounting groove (221) on two pervious road shoulders (22), and fixed through installation pole (223), then lay pervious brick (31) in a plurality of installing ports (321).

Technical Field

The application relates to the field of municipal construction, in particular to a water-permeable municipal road and a construction method thereof.

Background

The urban drainage system is used as an important component of urban functions and plays an important role in ensuring normal life of residents. In order to reduce water accumulation on the road surface in the prior art, a permeable asphalt mixture road surface and a permeable concrete road surface are often adopted to reduce the pressure of an urban drainage system, but when water in gaps in the existing permeable concrete freezes, the water expands in volume, so that obvious compressive stress is generated in the structure, and structural damage is further caused.

Chinese patent with application number CN201910070213.4 in the prior art discloses a municipal road drainage structure, which has the technical key points that: the concrete pavement structure comprises a surface layer, a base layer and a subbase layer which are distributed from top to bottom, wherein the surface layer is formed by laying pervious concrete, and the thickness of the surface layer is not less than 180 mm; the base layer is formed by paving porous cement stabilized macadam, and the thickness is not less than 200 mm; the subbase layer is formed by laying graded gravel, graded broken stone or graded gravel, and the thickness is not less than 150 mm; the pervious concrete comprises the following components in parts by weight: 200 portions and 230 portions of Portland cement; 1200 and 1400 parts of coarse aggregate; 60-70 parts of water; 2-4 parts of a water reducing agent; 22-26 parts of mineral powder; 0.2-0.4 part of air entraining agent; 4-6 parts of an antifreezing agent; 5-8 parts of modified nano silicon dioxide; the antifreezing agent comprises 20-26% of ethylene glycol, 8-12% of triethylamine, 18-24% of sodium thiocyanate, 6-10% of formamide, 14-18% of water, 8-12% of sodium citrate and 14-18% of fluorine surfactant.

In view of the above-mentioned related technologies, the inventor believes that, in the actual use process, when the rainwater is too large, the long-term erosion of the rainwater affects the structures of the base layer and the sub-base layer, and the structural damage of the road is caused.

Disclosure of Invention

In order to reduce the influence of rainwater on the structure of the water-permeable road, the application provides the water-permeable municipal road and the construction method thereof.

In a first aspect, the application provides a municipal road permeates water, adopts following technical scheme:

a permeable municipal road comprises a fine grain type permeable asphalt concrete layer, a medium grain type permeable asphalt concrete layer, a permeable rubber asphalt stress absorbing layer, a permeable concrete layer, a gravel base layer, a backfill layer I, a backfill layer II, a medium sand cushion layer and a coarse sand cushion layer which are sequentially distributed from top to bottom, wherein the backfill layer I is formed by backfilling plain filling soil, the compaction coefficient of the backfill layer I is greater than 0.85, the backfill layer II is formed by backfilling medium sand, fine sand and graded gravel with the particle size smaller than 40mm, and the thickness of the backfill layer II is 100-sand-200 mm.

By adopting the technical scheme, when rainwater permeates, the fine grain type pervious asphalt concrete layer, the medium grain type pervious asphalt concrete layer, the pervious rubber asphalt stress absorbing layer and the pervious concrete layer are required to permeate in sequence, so that the scouring generated in the road when rainwater permeates can be effectively slowed down, meanwhile, after the rubble base course effectively resists rain wash and shunts the permeable rain, the influence of the permeable rain on the first backfill layer and the second backfill layer which are taken as the base course can be effectively reduced, and finally the middle sand cushion layer and the coarse sand cushion layer are used for blocking, so as to reduce the loss of the first backfill layer and the second backfill layer caused by rainwater infiltration, and can slow down the force applied to the road through the permeable rubber asphalt stress absorbing layer, can combine the medium-grain type pervious asphalt concrete layer and the gravel base layer, so that the practical effect is better.

Optionally, the impermeable basic unit has still been laid to granule formula asphalt concrete layer's top of permeating water, the depth that catch basin and catch basin that the road length direction of edge extension were seted up on the basic unit is less than 20mm, the catch basin is open structure and its both sides opening limit edge along road length direction is provided with the permeable road shoulder of permeating water respectively, two the last border of the opposite side of permeable road shoulder has seted up the mounting groove respectively, two the carriage subassembly has been set up to the mounting groove, a plurality of bricks that permeate water have been laid to the carriage subassembly.

Through adopting above-mentioned technical scheme, when using, can will ooze through the catch basin and lay the rainwater of the brick that permeates water of locating the carriage subassembly and collect, in order to do the deposit and the buffering of rainwater, in order to reduce the not enough possibility that leads to the road surface to produce ponding because of the structure speed of permeating water of foundation bed below, the degree of depth of catch basin is less than 20mm simultaneously, can also keep the humidity on road surface through the rainwater in the catch basin after rain, when reducing the raise dust, when the rainwater is too big, the rainwater can also in time ooze through the road shoulder that permeates water.

Optionally, a plurality of pervious pipes that distribute along road length direction have been laid in the rubble basal layer, the both ends of pervious pipe upwards buckle respectively then buckle in opposite directions and penetrate to the road shoulder that permeates water in, pervious pipe communicates in the catch basin.

Through adopting above-mentioned technical scheme, the rainwater is too big can lead to the rainwater accumulation in the catch basin and spill over, and the pipe of permeating water this moment can in time guide the rainwater in the catch basin to rubble basic unit in to do preliminary buffering through rubble basic unit and reduce the influence to road foundation, can also in time permeate rainwater to the underground.

Optionally, wear to be equipped with the drain pipe that extends along road length direction in the backfill layer two and the well sand bed course, the road shoulder that permeates water wears to be equipped with a plurality of overflow pipes that distribute along road length direction, the one end of overflow pipe communicates in the catch basin, the overflow pipe communicates in the top that the tip of catch basin is located the pipe of permeating water, the other end of overflow pipe communicates in the drain pipe.

Through adopting above-mentioned technical scheme, can not in time discharge the catch basin with the rainwater at the pipe of permeating water with the curb that permeates water, can discharge in the drainage pipe with the rainwater of catch basin through the overflow pipe to optimize the result of use.

Optionally, the braced frame subassembly includes the braced frame that distributes along road length direction, the shaping has a plurality of installing ports in the braced frame, the installing port is kept away from the opening border of ground one side and has been seted up the installation annular, the border of the brick that permeates water is set up in the installation annular.

Through adopting above-mentioned technical scheme, when carrying out road construction, only need earlier lay a plurality of braced frame in the mounting groove in proper order, then will permeate water the brick lay in the mounting groove can, can effectually reduce because of setting up the catch basin to the influence of construction complexity.

Optionally, an anti-cracking net located below the water permeable bricks is fixedly connected in the mounting port.

Through adopting above-mentioned technical scheme, because the brick that permeates water is laid in the mounting ring inslot, can break because of outside atress easily, can assist through the crack control net and do the support to the brick that permeates water, can also block at the piece that permeates water the brick and break the back production to reduce the work load of maintaining the catch basin, optimize the result of use.

Optionally, the road shoulder that permeates water has preset a plurality of installation poles that distribute along road length direction, the installation pole is vertical setting and its lower extreme penetrates to rubble basic unit in, the upper end of installation pole penetrates to the mounting groove in, the upper end of installation pole is frustum column structure and tip up, braced frame sets up the mounting hole of having seted up a plurality of adaptations installation pole at the border of mounting groove.

Through adopting above-mentioned technical scheme, the installation pole can effectual restriction carriage take place the possibility of removing in the use, and the upper end of installing the pole simultaneously is frustum column structure and tip up, can be when braced frame sets up in the mounting groove, the outer wall of installation pole comparatively inseparable laminating in the pore wall of braced frame mounting hole relatively to stability when optimizing the use.

Optionally, a plurality of and installation pole buffering annular with the central axis is seted up to the upper end of installation pole, and is same a plurality of spread grooves that encircle the installation pole setting are seted up to the installation pole, the spread groove communicates in a plurality of buffering annular, and is same a plurality of buffering annular and the spread groove intussuseption of installation pole are filled with the cushion rubber spare of adaptation, the cushion rubber spare is made for water-swelling rubber.

Through adopting above-mentioned technical scheme, when raining, because can have the rainwater between the cell wall of braced frame and mounting groove, braced frame rocks this moment and can extrude the rainwater easily and sputter the pedestrian, can support the pore wall of locating the mounting hole after the cushion rubber spare rainwater inflation, braced frame can do the buffering through the cushion rubber spare when receiving the impact this moment, with the possibility that reduces the rainwater splash, simultaneously when not raining, the cushion rubber spare can inlay and locate in a plurality of cushion ring grooves and spread groove, the installation pole can normally be supported braced frame, with the optimization result of use.

In a second aspect, the application provides a construction method of a water-permeable municipal road, which adopts the following technical scheme:

a construction method of a water-permeable municipal road comprises the following steps:

s1, construction and paying off: confirming a line according to a design drawing and carrying out construction paying-off;

s2, excavating a pipe groove: excavating a pipe groove according to the line, wherein the depth of the pipe groove is 1500-1700 mm;

s3, construction of a drain pipe foundation: the pipeline foundation is formed by paving and tamping medium and coarse sand, the thickness of the coarse sand cushion layer is 170mm, and the compaction coefficient is 0.90;

s4, laying a pipeline: laying a drain pipe and an overflow pipe communicated with the drain pipe on the upper surface of the coarse sand cushion layer, then laying medium sand or coarse sand on the side part of the drain pipe to form a medium sand cushion layer, wherein the thickness of the medium sand cushion layer is 120mm, the compaction coefficient is 0.95, then backfilling the pipe groove by using medium sand, fine sand and graded sandstone with the particle size smaller than 40mm above the medium sand cushion layer, and covering the drain pipe to form a backfill layer II with the thickness of 100 plus 200 mm;

s5, upper layer construction: a backfill layer I with the thickness of 350mm is formed above the plain filling soil backfill and backfill layer II, the compaction coefficient is more than 0.85, 4% of permeable cement is adopted to stabilize the macadam above the backfill layer I to form a macadam base layer with the thickness of 200mm, and a permeable pipe is laid in the gravel base layer, C30 permeable concrete is laid above the gravel base layer to form a permeable concrete layer with the thickness of 250mm, permeable rubber asphalt is laid above the permeable concrete layer to form a permeable rubber asphalt stress absorbing layer with the thickness of 20mm, then a medium grain type pervious asphalt concrete layer with the thickness of 60mm and a fine grain type pervious asphalt concrete layer with the thickness of 40mm are paved above the pervious rubber asphalt stress absorbing layer in sequence, and during construction, presetting a plurality of mounting rods with upper ends penetrating out on a fine grain type pervious asphalt concrete layer, a medium grain type pervious asphalt concrete layer, a pervious rubber asphalt stress absorbing layer, a pervious concrete layer and a macadam base layer;

s6, constructing a foundation layer: adopt C30 concrete placement to form basic layer and catch basin, adopt C30 to pour the formation shoulder of permeating water and form the mounting groove at the both sides border on basic layer, set up a plurality of braced frames in the mounting groove on two shoulders of permeating water to it is fixed through the installation pole, then lay the brick that will permeate water in a plurality of installing ports.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the rainwater infiltration device is used, during rainwater infiltration, a fine grain type water-permeable asphalt concrete layer, a medium grain type water-permeable asphalt concrete layer, a water-permeable rubber asphalt stress absorbing layer and a water-permeable concrete layer can be sequentially infiltrated, scouring generated inside a road during rainwater infiltration can be effectively slowed down, meanwhile, after rainwater erosion is effectively resisted in a gravel base layer and the infiltrated rainwater is shunted, the influence of the infiltrated rainwater on a backfill layer I and a backfill layer II serving as the base layer can be effectively reduced, and finally, a blocking layer is formed by the medium sand cushion layer and a coarse sand cushion layer to reduce loss caused by the backfill layer I and the backfill layer II due to rainwater infiltration.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic partial explosion diagram of an embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

FIG. 4 is a schematic flow chart of a construction method according to an embodiment of the present application.

Description of reference numerals: 11. a fine-grained pervious asphalt concrete layer; 12. a medium grain type pervious asphalt concrete layer; 13. a permeable rubber asphalt stress absorbing layer; 14. a pervious concrete layer; 15. a macadam base; 16. a first backfill layer; 17. a backfill layer II; 18. a medium sand cushion layer; 19. a coarse sand cushion layer; 2. a base layer; 21. a water storage tank; 22. a water permeable road shoulder; 221. mounting grooves; 222. an overflow pipe; 223. mounting a rod; 224. a buffer ring groove; 225. connecting grooves; 226. a cushion rubber member; 3. a support frame assembly; 31. water permeable bricks; 32. a support frame; 321. an installation port; 322. mounting a ring groove; 323. a crack control web; 33. a lap plate; 331. a lapping strip; 332. a lap joint groove; 333. a restriction strip; 334. a first limiting layer; 335. a second limiting layer; 4. a water permeable pipe; 5. and a water discharge pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses town road permeates water. Referring to fig. 1 and 2, the water-permeable municipal road comprises a fine grain type water-permeable asphalt concrete layer 11, a medium grain type water-permeable asphalt concrete layer 12, a water-permeable rubber asphalt stress absorbing layer 13, a water-permeable concrete layer 14, a broken stone base layer 15, a first backfill layer 16, a second backfill layer 17, a medium sand cushion layer 18 and a coarse sand cushion layer 19 which are sequentially distributed from top to bottom, wherein the first backfill layer 16 is formed by backfilling plain filling soil and has a compaction coefficient of more than 0.85, and the second backfill layer 17 is formed by backfilling medium sand, fine sand and graded gravel with the grain size of less than 40mm and has the thickness of 100-sand-200 mm.

Therefore, when in use, when rainwater permeates, the fine grain type permeable asphalt concrete layer 11, the medium grain type permeable asphalt concrete layer 12, the permeable rubber asphalt stress absorbing layer 13 and the permeable concrete layer 14 are required to permeate in sequence, the erosion generated in the road when rainwater permeates can be effectively slowed down, meanwhile, after the gravel base layer 15 effectively resists rainwater erosion and distributes the permeated rainwater, the influence of the permeated rainwater on the backfill layer I16 and the backfill layer II 17 which are used as the base layer can be effectively reduced, finally, the medium sand cushion layer 18 and the coarse sand cushion layer 19 are used as barriers to reduce the loss generated by the backfill layer I16 and the backfill layer II 17 due to rainwater permeation, the force borne by the road can be slowed down through the permeable rubber asphalt stress absorbing layer 13, and the medium grain type permeable asphalt concrete layer 12 and the gravel base layer 15 can be combined together, so that the using effect is better. Meanwhile, in order to slow down water accumulation on the surface of the road in heavy rain, the foundation layer 2 is formed above the fine grain type permeable asphalt concrete layer 11 by paving impermeable concrete.

Referring to fig. 2 and 3, the upper surface of the foundation layer 2 is provided with a water storage tank 21 extending along the length direction of the road, the depth of the water storage tank 21 is 10-20mm, and the water storage tank 21 is provided with an upper opening. The catch basin 21 adopts C30 pervious concrete to pour respectively along the both sides opening limit of road length direction and is formed with pervious shoulder 22 to be used for oozing water when rainwater is amassed in catch basin 21, and the last border of two pervious shoulder 22 opposite sides has seted up respectively along road length direction extension's mounting groove 221, and two mounting grooves 221 are opening and the upper shed setting in opposite directions. The supporting frame assemblies 3 are arranged in the two mounting grooves 221 in an overlapping mode, the supporting frame assemblies 3 are paved with a plurality of water permeable bricks 31, so that rainwater, which seeps through the supporting frame assemblies 3 and the water permeable bricks 31, of the water storage tank 21 can be primarily stored in the water storage tank 21 when heavy rain occurs, the possibility of water accumulation on the road surface is reduced, and meanwhile rainwater can seep out through the water permeable road shoulders 22 when the rainwater is heavy; meanwhile, when the rainwater is small, the water storage tank 21 can store the rainwater so as to keep the humidity of the road surface after the rainwater is left, and the dust raising effect is reduced.

But only through the curb 22 drainage of permeating water, it is full to lead to the catch basin 21 internal water to amass easily, consequently, still laid a plurality of pipes 4 of permeating water that distribute along the road direction in rubble basic unit 15, it is the level setting and the length direction of its length direction perpendicular to road to permeate water pipe 4, the both ends of the pipe 4 of permeating water are upwards buckled 90 respectively and then are buckled 90 in opposite directions and penetrate to the curb 22 of permeating water in, it communicates in catch basin 21 to permeate water pipe 4, and the part that the pipe 4 of permeating water is located rubble basic unit 15 covers geotechnological cloth, in order can be when the rainwater accumulation is too much in catch basin 21, can arrange the rainwater to rubble basic unit 15 in and ooze through the pipe 4 of permeating water, when keeping the rainwater utilization, can also be with unnecessary rainwater infiltration to the underground, make practical function better.

Referring to fig. 2 and 3, the second backfill layer 17 and the medium sand cushion layer 18 are internally paved with a drain pipe 5 extending along the length direction of the road, and the drain pipe 5 is communicated with a municipal drainage pipeline. And the shoulder 22 of the road that permeates water wears to be equipped with a plurality of overflow pipes 222 that distribute along road length direction, the one end of overflow pipe 222 communicates in the catch basin 21, the other end level of overflow pipe 222 wears out the shoulder 22 of the road that permeates water and catch basin 21 and communicates in drain pipe 5, and overflow pipe 222 communicates in the tip of catch basin 21 and is located the top of permeating water pipe 4, in order can be when rainwater accumulation speed surpasss the shoulder 22 of permeating water and permeate water pipe 4 and discharge underground speed in catch basin 21, the rainwater can be amalgamated the tip of permeating water pipe 4 intercommunication catch basin 21, can also discharge the rainwater to drain pipe 5 through overflow pipe 222 this moment, in order further to reduce the possibility that the road surface produced ponding.

Meanwhile, the supporting frame component 3 is convenient to install and lay the water permeable bricks 31, and the water storage tank 21 is convenient to clean and maintain. The supporting frame assembly 3 includes a plurality of supporting frames 32 distributed along the length direction of the road, so that when the supporting frame assembly 3 is laid, different supporting frames 32 are only required to be set up in the two mounting grooves 221 at a time. The supporting frame 32 is a rectangular parallelepiped frame-shaped structure and is internally formed with a plurality of mounting openings 321, a plurality of mounting ring grooves 322 are provided at the edge of the mounting openings 321, and the mounting ring grooves 322 are provided with upper openings facing the central openings of the mounting openings 321. The edge of the water permeable brick 31 is erected in the mounting ring groove 322 to be used for paving the water permeable brick 31.

Referring to fig. 2 and 3, in order to reduce the possibility of the water permeable bricks 31 cracking during use, anti-cracking nets 323 for auxiliary support of the water permeable bricks 31 are fixedly connected in the mounting holes 321, and meanwhile, fragments generated after the water permeable bricks 31 are cracked can be blocked by the anti-cracking nets 323, so that the workload of cleaning the water storage tank 21 is reduced, and the use effect is optimized. Wherein, the diameter of the mesh of the anti-cracking net 323 is less than 5 mm.

A plurality of installation rods 223 distributed along the length direction of the road are preset in the water permeable road shoulder 22, and the installation rods 223 are vertically arranged and the lower ends of the installation rods 223 are preset in the gravel base layer 15, so that the stability and the reliability of the installation rods 223 are improved. The upper end of the mounting rod 223 penetrates into the mounting groove 221, and the upper end of the mounting rod 223 is in a frustum-shaped structure and the upper end thereof is a small end. Wherein, the mounting hole of a plurality of adaptations installation pole 223 upper end has been seted up at the border that braced frame 32 set up in mounting groove 221, installation pole 223 is inserted and is located in the mounting hole, in order to be used for fixing braced frame 32, because the upper end of installation pole 223 is frustum column structure, can insert when locating in the mounting hole at installation pole 223, the outer wall of installation pole 223 upper end can be comparatively inseparable laminating in the pore wall of mounting hole, thereby can be in daily use, reduce and flow toward catch basin 21 because of the rainwater, extrude the possibility of spattering the pedestrian because of braced frame 32 swings with its rainwater with the cell wall clearance of mounting groove 221, stability when optimizing the use.

Referring to fig. 2 and 3, in order to further optimize the stability of the supporting frame 32 during use, the frustum structural portion at the upper end of the mounting rod 223 is provided with a plurality of buffer ring grooves 224 which are arranged with the same central axis as the mounting rod 223, and the plurality of buffer ring grooves 224 are distributed along the axial direction of the mounting rod 223. A plurality of connecting grooves 225 are formed around the central axis of the mounting rod 223, and the connecting grooves 225 are connected to a plurality of buffer ring grooves 224 formed on the mounting rod 223. A plurality of connecting grooves 225 and the cushion ring groove 224 on same installation pole 223 are filled with the cushion rubber piece 226 of adaptation, cushion rubber piece 226 is made for meeting water inflation rubber, so that when rainy day, cushion rubber piece 226 absorbs water the back inflation, so as to do the support to braced frame 32, and slow down braced frame 32 and lead to the rainwater to sputter pedestrian's possibility because of producing the swing when raining, in addition when normal use, the outer wall of installation pole 223 can normally do the support to braced frame 32, with the loss that reduces cushion rubber piece 226, optimize the result of use.

While reducing the likelihood of rain water spillage during use in rainy weather in order to increase the integrity between the different support frames 32. The supporting frame 32 is fixedly connected with horizontally arranged lapping plates 33 at two side edges perpendicular to the length direction of the road, and the lapping plates 33 extend along the length direction of the road.

The shaping has installing port 321 between two adjacent lapping plate 33 to lapping plate 33 is kept away from the shaping of the one end of its fixed braced frame 32 and is had overlap joint 331, and the overlap joint 331 of two adjacent braced frame 32 opposite sides is the overlap joint each other from top to bottom, and the upper and lower outer wall of two overlap joint 331 after the overlap joint is parallel and level with the upper and lower outer wall of lapping plate 33. The opposite sides of the two overlapping strips 331 which are overlapped with each other are respectively provided with overlapping grooves 332 which are opened oppositely, the overlapping grooves 332 are dovetail grooves or T-shaped grooves, and the overlapping grooves 332 extend along the direction vertical to the length direction of the road and are of a structure with two open ends.

Referring to fig. 2 and 3, the two overlapping grooves 332 on the two overlapping strips 331 overlapped with each other are provided with adaptive limiting strips 333 in a clamping manner, and two ends of the limiting strips 333 respectively penetrate into and are clamped in the overlapping grooves 332 on the two overlapping strips 331 overlapped with each other. And the outside of the restriction strip 333 is wrapped with a first restriction layer 334 made of water-swellable rubber, and the outer walls of the opposite sides of the two overlapping strips 331 which are overlapped with each other are also respectively embedded with a second restriction layer 335 made of water-swellable rubber.

When raining, the rainwater can make the first restriction layer 334 and the second restriction layer 335 expand respectively, meanwhile, because the two ends of the restriction strip 333 are clamped in the two overlapping grooves 332 respectively, the first restriction layer 334 can make the restriction strip 333 pull the two overlapping strips 331 which are overlapped mutually in opposite directions, and meanwhile, the second restriction layer 335 can make the two overlapping strips 331 which are overlapped mutually far away, so that the two overlapping strips 331 which are overlapped mutually can be combined relatively tightly when raining, so that the possibility of rainwater sputtering caused by vibration or swinging of the supporting frame 32 during use is reduced, and meanwhile, when mounting is carried out, only the overlapping strips 331 on the adjacent supporting frame 32 need to be overlapped on the overlapping strips 331 on the adjacent supporting frame 32, then the restriction strip 333 is inserted into the two overlapping grooves 332 which are overlapped mutually, and finally, the permeable bricks 31 are laid in the mounting openings 321 formed by the overlapping strips 331.

The embodiment of the application also discloses a construction method of the water-permeable municipal road. Referring to fig. 4, the construction method includes the steps of:

s1, construction and paying off: confirming a line according to a design drawing and carrying out construction paying-off;

s2, excavating a pipe groove: excavating a pipe groove according to the line, wherein the depth of the pipe groove is 1500-1700 mm;

s3, construction of a drain pipe foundation: the pipeline foundation adopts medium and coarse sand to be paved and tamped to form a coarse sand cushion layer 19, the thickness of the coarse sand cushion layer 19 is 170mm, and the tamping coefficient is 0.90;

s4, laying a pipeline: laying the drain pipe 5 and an overflow pipe 222 communicated with the drain pipe 5 on the upper surface of the coarse sand cushion 19, then laying medium sand or coarse sand on the side part of the drain pipe 5 to form a medium sand cushion 18, wherein the thickness of the medium sand cushion 18 is 120mm, the compaction coefficient is 0.95, then backfilling the pipe groove above the medium sand cushion 18 by using medium sand, fine sand and graded gravel with the particle size smaller than 40mm, and covering the drain pipe 5 to form a backfill layer II 17 with the thickness of 100 and 200 mm;

s5, upper layer construction: forming a backfill layer I16 with the thickness of 350mm above a backfill layer II 17 by adopting plain filling soil, wherein the compaction coefficient is more than 0.85, forming a macadam base layer 15 with the thickness of 200mm by adopting 4 percent of permeable cement stabilized macadam above the backfill layer I16, laying a permeable pipe 4 in the macadam base layer 15, laying C30 permeable concrete above the macadam base layer 15 to form a permeable concrete layer 14 with the thickness of 250mm, laying permeable rubber asphalt above the permeable concrete layer 14 to form a permeable rubber asphalt stress absorption layer 13 with the thickness of 20mm, then laying a medium grain type permeable asphalt concrete layer 12 with the thickness of 60mm and a fine grain type permeable asphalt concrete layer 11 with the thickness of 40mm above the permeable rubber asphalt stress absorption layer 13 in sequence, and during construction, laying the medium grain type permeable asphalt concrete layer 11, the medium grain type permeable concrete layer 12 and the permeable rubber asphalt stress absorption layer 13, The pervious concrete layer 14 and the gravel base layer 15 are preset with a plurality of mounting rods 223 with the upper ends penetrating out;

s6, constructing a foundation layer: adopt C30 concrete placement to form foundation layer 2 and catch basin 21, adopt C30 at the both sides border of foundation layer 2 to pour and form permeable road shoulder 22 and form mounting groove 221, set up a plurality of braced frame 32 in the mounting groove 221 on two permeable road shoulders 22, and fix through installation pole 223, then insert restriction strip 333 and locate in the overlap joint groove 332 of two overlap joint strips 331 of overlap joint each other, with the mutual removal of two adjacent braced frame 32 of restriction, lay permeable brick 31 in the installing port 321 and the different a plurality of adjacent overlap joint strips 331 in a plurality of braced frame 32 again at last.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.