CN210262576U

CN210262576U - Full-penetration asphalt pavement system capable of effectively controlling rainwater runoff pollution of pavement

Info

Publication number: CN210262576U
Application number: CN201920741191.5U
Authority: CN
Inventors: 赵曜; 朱亚婷; 赵尘
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-04-07
Anticipated expiration: 2029-05-22

Abstract

The utility model provides a can effective control road surface rainfall runoff pollute pass through formula bituminous paving system entirely, is including being used for collecting and purifying full formula bituminous paving structure (1) of rainwater, its characterized in that: the full-penetration type asphalt pavement structure (1) is composed of a permeable asphalt mixture surface layer (7), a large-particle-diameter permeable asphalt mixture base layer (8), a single-particle-diameter gravel water storage layer (9), a first reverse filtration isolation layer (10) and a medium-coarse sand permeable cushion layer (11) which are sequentially arranged from top to bottom. The problem of local consumption of the road surface rainwater runoff during rainfall is solved; meanwhile, the system realizes real-time monitoring of conventional indexes of the quality of the regenerated runoff water, is convenient for flexibly adjusting the operation and maintenance scheme of the system, further ensures the quality of the water for sprinkling irrigation and the water for cleaning the road surface, can relieve the pollution of the rainwater runoff on the road surface, and effectively solves the water problems of green land irrigation of urban roads and road surface cleaning operation.

Description

Full-penetration asphalt pavement system capable of effectively controlling rainwater runoff pollution of pavement

Technical Field

The utility model belongs to the technical field of municipal works, concretely relates to collect infiltration, collection, purification, storage, recycle and water quality monitoring of road surface rainfall runoff in an organic whole, can alleviate road surface rainfall runoff and pollute to can effectively solve urban road greenery patches and irrigate and the full formula bituminous pavement system that passes through that can effectively control road surface rainfall runoff pollutes of road surface washing operation water problem.

Background

The traditional impervious urban road is a main component of urban catchment surfaces and is also a main place for generating road surface runoff and pollutants thereof. In sunny days, pollutants such as particles, nutritive salts, heavy metals and polycyclic aromatic hydrocarbons are accumulated on the surface of a road, and in rainfall, the pollutants are dissolved in rainwater runoff and are discharged into a receiving water body through a municipal drainage pipe network to migrate and diffuse, so that secondary pollution of the water body is caused. At present, aiming at the management and control of urban road surface rainwater runoff pollution, the pollutant emission concentration is reduced by mainly adopting a mode of combining engineering measures and non-engineering measures internationally, wherein Low Impact Development (LID) is the most representative. The permeable asphalt pavement is an important type in low-influence development facilities and can be divided into a semi-permeable type and a full-permeable type according to different drainage modes.

The full-penetration asphalt pavement adopts large-porosity materials for each structural layer, so that the whole pavement structure becomes an artificial porous medium, and the pavement rainwater seeps layer by layer through the communicated gaps in the pavement structure and finally enters the soil foundation. In the process, the particles and other attached pollutants in the runoff are trapped layer by the communicated gaps, so that the runoff water quality discharged from the road surface is obviously improved. Therefore, the full-penetration asphalt pavement has more advantages than the semi-penetration asphalt pavement in the aspects of reducing the total runoff amount of the pavement, reducing the peak value of the runoff, replenishing underground water, reducing the pollution load of the rainwater runoff of the pavement, promoting the resource utilization of the rainwater and the like, and is also more in accordance with the sponge city construction concept. Meanwhile, the existing design method in China lacks comprehensive consideration and systematic consideration, so that the pavement can only be used for water penetration and drainage after being built, and the theoretical advantages of the pavement cannot be exerted.

In addition, the road greening irrigation and road surface cleaning operation needs to consume a large amount of water every year, and although the water saving technology can obviously reduce the water consumption and improve the water use efficiency, a considerable amount of water still needs to be consumed every year; therefore, the use of reclaimed water instead of tap water currently used for the related operations is considered to be an effective way to solve this conflict. In addition, at present, effluent of urban sewage treatment plants is mainly used as a reclaimed water source at home and is used by laying a special water supply network, but the construction cost is high, so that the method is difficult to popularize and apply in a large range. There is a need for an improved all-through asphalt pavement system of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to above-mentioned problem, provide a collect infiltration, collection, purification, storage, recycle and water quality monitoring of road surface rainfall runoff in an organic whole, can alleviate road surface rainfall runoff and pollute to can effectively solve urban road greenery patches and irrigate and the road surface and wash the full formula bituminous pavement system that can effectively control road surface rainfall runoff and pollute of operation water problem.

The utility model adopts the technical proposal that: this but full formula bituminous paving system that passes through of effective control road surface rainwater runoff pollutes is including being used for collecting and purifying the full formula bituminous pavement structure of rainwater, its characterized in that: the fully-permeable asphalt pavement structure is composed of a permeable asphalt mixture surface layer, a large-particle-diameter permeable asphalt mixture base layer, a single-particle-diameter gravel water storage layer, a first reverse filtering isolation layer and a medium coarse sand permeable cushion layer which are sequentially arranged from top to bottom, impermeable geotextiles are laid on two sides of the fully-permeable asphalt pavement structure, and a permeable water delivery pipe network is embedded in the medium coarse sand permeable cushion layer; the method comprises the following steps that (1) regenerated runoff formed by decontaminating rainwater collected by a full-penetration asphalt pavement structure is discharged into a runoff storage module, and a flow abandoning well is arranged in the runoff storage module; the permeable water delivery pipe network of the full-permeable asphalt pavement structure is communicated with a water inlet which is arranged on a drainage well of the runoff storage module and used for inputting the regenerated runoff; an overflow port and a discarding port of the discarding well are respectively communicated with a municipal rainwater pipe network, and a first water valve is arranged between a water inlet of the discarding well and a water outlet of the permeation water pipe network; a water outlet on the flow abandoning well for discharging the regenerated runoff is sequentially connected with a water storage tank and a runoff utilization module for carrying out on-site secondary utilization on the regenerated runoff; and a water quality monitoring module for monitoring the purification effect of the collected rainwater runoff and the regeneration runoff water quality condition of the discharged pavement structure is further arranged in the full-penetration asphalt pavement structure, and the water quality monitoring module is in wireless connection with the computer control module through a data transmission network.

The permeable water delivery pipe network embedded in the medium coarse sand permeable cushion layer of the full-permeable asphalt pavement structure comprises a permeable water delivery main pipe and a permeable water delivery branch pipe which are arranged along the central line direction of the full-permeable asphalt pavement; the main osmotic water delivery pipe and the branch osmotic water delivery pipe are communicated with each other through a cross-shaped four-way pipe fitting, and the cross-shaped four-way pipe fitting is arranged at the middle section of the branch osmotic water delivery pipe; one end of the infiltration water delivery branch pipe is provided with a branch pipe cover, and the other end of the infiltration water delivery branch pipe is a water outlet communicated with a water inlet of the abandoned flow well; the infiltration water delivery branch pipe is obliquely arranged, and one end of the infiltration water delivery branch pipe, which is provided with the branch pipe cover, is higher than one end of the water outlet of the infiltration water delivery branch pipe in the vertical direction; meanwhile, the communicating end of the water outlet of the permeable water delivery branch pipe and the water inlet of the abandoning well extends out of the side line of the full-penetration asphalt pavement.

The abandoning well of the runoff storage module comprises a well body, a cover plate is arranged at the top of the well body, a water inlet and an overflow port of the abandoning well are arranged at the upper edge of the side wall of the well body, a water outlet of the abandoning well is arranged at the lower edge of the side wall of the well body, a abandoning port is arranged at the central position of the bottom wall of the well body, and a abandoning water valve is arranged outside the abandoning port; the water outlet of the abandoning well is communicated with the water inlet of the water storage tank, and the water inlet of the water storage tank is communicated with the water storage tank; a water storage pool water outlet is formed in the edge of the bottom of the side wall of the water storage pool and is connected with an inlet of the runoff utilization module; and the flow abandoning well is positioned below the horizontal plane of the permeable water pipe network, and the water storage tank is positioned below the horizontal plane of the water outlet of the flow abandoning well.

A water level measuring instrument sleeve is arranged in the water storage tank, penetrates through the top wall of the water storage tank and extends to the bottom of the water storage tank, and a water level measuring instrument sleeve pipe cover is arranged at the top end of the water level measuring instrument sleeve; and a second water level measuring instrument extending into the bottom of the water storage tank is arranged in the water level measuring instrument sleeve, and the second water level measuring instrument is in wireless connection with the computer control module through a data transmission network.

The runoff utilization module comprises a booster pump, the water inlet end of the booster pump is communicated with the water outlet of the water storage tank through a main water delivery pipe, and a second water valve is arranged at the joint of the main water delivery pipe and the water outlet of the water storage tank; the water outlet end of the booster pump is communicated with a water delivery main pipe, and the water delivery main pipe penetrates through a water quality monitoring box for monitoring the water quality data of the regenerated runoff in the pipe body of the water delivery main pipe; meanwhile, the water supply main pipe is communicated with the water supply branch pipes, each water supply branch pipe is provided with a plurality of spray heads, and the spray heads are distributed on the surface of the road green belt.

The water delivery main pipe is provided with a check valve, and the water delivery main pipe is provided with a flow valve, a pressure regulating valve and a three-way regulating valve; a second turbidity sensor, a pH value sensor and a temperature sensor are arranged in the water quality monitoring box; the flow valve, the pressure regulating valve, the three-way regulating valve, the second turbidity sensor, the pH value sensor and the temperature sensor are all in wireless connection with the computer control module through a data transmission network.

The water quality monitoring module comprises a monitoring well pipe, the monitoring well pipe is vertically embedded in the full-penetration asphalt pavement structure, and a monitoring well cover is arranged at the top end of the monitoring well pipe; the bottom end of the monitoring well pipe is communicated with the osmotic water pipe network through a T-shaped three-way pipe fitting, and a first turbidity sensor and a multi-parameter sensor are arranged at the lower edge of the inner side of the monitoring well pipe; a water sample collecting device and a first water level measuring instrument are arranged at the communication part of the permeable water pipe network and the monitoring well pipe; the first turbidity sensor, the multi-parameter sensor and the first water level measuring instrument are all in wireless connection with the computer control module through a data transmission network.

The monitoring well pipe comprises a water quality monitoring well main well pipe and a water quality monitoring well auxiliary well pipe, and the water quality monitoring well auxiliary well pipe is tightly contacted with the side wall of the water quality monitoring well main well pipe; the water quality monitoring well main well pipe is communicated with the permeation water pipe network through a T-shaped three-way pipe, and the top end of the water quality monitoring well main well pipe is provided with a water quality monitoring well main well cover; and the top end of the auxiliary well pipe of the water quality monitoring well is provided with an auxiliary well cover of the water quality monitoring well.

The first turbidity sensor and the multi-parameter sensor are embedded on the side wall of the main well pipe of the water quality monitoring well, the detection parts of the first turbidity sensor and the multi-parameter sensor are positioned in the main well pipe of the water quality monitoring well, and the first turbidity sensor and the multi-parameter sensor are in wired connection with the computer control module through data transmission lines; the data transmission line is communicated with the first turbidity sensor and the multi-parameter sensor and penetrates through the auxiliary well pipe of the water quality monitoring well; the first water level measuring instrument is arranged in a main well pipe of the water quality monitoring well, the first water level measuring instrument is in wired connection with the computer control module through a data transmission line, and the data transmission line communicated with the first water level measuring instrument penetrates through the main well pipe of the water quality monitoring well; the water sample collecting device comprises a telescopic pull rod, and a second hook and a third hook are respectively arranged at two ends of the telescopic pull rod; the second hook of the telescopic pull rod is detachably connected with the first hook fixedly arranged at the edge of the top end of the inner wall of the main well pipe of the water quality monitoring well, and the third hook of the telescopic pull rod is detachably connected with the water sample collecting bottle.

The utility model has the advantages that: the full-penetration asphalt pavement structure in the pavement system has the pavement performance, water permeability and water storage capacity, and also has lasting and stable removal capacity on suspended particulate matters of target pollutants and heavy metals of lead and zinc. In addition, a runoff storage module, a runoff utilization module and a water quality monitoring module which are matched with the full-penetration asphalt pavement structure are designed, so that the problem of local consumption of the rainwater runoff on the pavement during rainfall is solved on the premise that the road passing function is not influenced; meanwhile, the real-time monitoring of the conventional index of the quality of the regenerated runoff water is realized, the operation and maintenance scheme of the system is convenient to flexibly adjust, the quality of the sprinkling irrigation water and the water for cleaning the pavement is further ensured, and the occurrence of secondary pollution is effectively avoided. The abandoned flow well in the pavement system plays a role in control and diversion, and when the water flow in the abandoned flow well is large or the water storage pool is full, redundant water can be discharged into the municipal rainwater pipe network. In addition, the runoff water sample collection device of the pavement system is convenient for workers to perform regular or irregular on-site sampling analysis, is favorable for mastering the working state of the full-penetration type asphalt pavement structure, and provides reliable information for adjusting, maintaining and repairing schemes. Most of components in the system are embedded, so that the system does not occupy the land, and the urban road landscape is not influenced after the system is built.

The full-penetration asphalt pavement system capable of effectively controlling the pollution of the rainwater runoff on the pavement has comprehensive functions, can orderly complete the work of on-site infiltration, on-site collection, on-site purification, on-site recycling, conventional water quality monitoring and the like of the rainwater runoff on the pavement under the condition of not increasing other facilities, saves the construction cost of matched facilities, and is favorable for popularization and application. The regenerated runoff in the pavement system can be used as water for road greening irrigation or road surface cleaning operation, so that the construction cost of a regenerated water pipeline is saved, the use threshold of the regenerated runoff is reduced, and the regenerated runoff system is very suitable for being popularized and applied as urban infrastructure supporting facilities. Meanwhile, the structural scheme of the pavement system can be correspondingly adjusted according to different rainfall conditions or design targets of project use areas, the method is simple and easy to implement, and the adaptability of the system to the environment is greatly improved.

The full-penetration asphalt pavement system integrates the functions of infiltration, collection, purification, storage, reutilization and water quality monitoring of rainwater runoff on the pavement, and has the advantages of simple design and convenient construction and maintenance; the problem of road surface rainwater runoff pollution puzzling urban sustainable development is solved, the design and application bottlenecks of the full-penetration asphalt pavement are broken through, and the problem of water consumption in urban road green land irrigation and road surface cleaning operation can be solved to a great extent.

Drawings

Fig. 1 is a schematic plan view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic structural view of the full-penetration type asphalt pavement structure in fig. 2.

Fig. 4 is a schematic plan view of the osmotic water delivery tube of fig. 3.

Fig. 5 is a schematic view of a cross-sectional structure of fig. 4.

Fig. 6 is a schematic diagram of one configuration of the abandonment well of fig. 2.

Figure 7 is a schematic view of a configuration of the reservoir of figure 2.

Fig. 8 is a schematic diagram of a structure of the water quality monitoring module in fig. 2.

Fig. 9 is a cross-sectional view taken along line i-i of fig. 8.

Fig. 10 is a cross-sectional view taken along line ii-ii of fig. 8.

Fig. 11 is a schematic structural view of the monitoring manhole cover in fig. 8.

FIG. 12 is a schematic diagram of one arrangement of the turbidity sensor and the multi-parameter sensor of FIG. 2.

The sequence numbers in the figures illustrate: 1 full-permeable asphalt pavement structure, 2 road green belts, 3 water quality monitoring modules, 4 runoff storage modules, 5 runoff utilization modules, 6 computer control modules, 7 permeable asphalt mixture surface layers, 8 large-particle-diameter permeable asphalt mixture base layers, 9 single-particle-diameter gravel water storage layers, 10 first reverse filtration isolation layers, 11 medium-coarse sand permeable cushion layers, 12 impermeable geotextiles, 13 permeable water conveying pipe networks, 14 water sample acquisition devices, 15 first water level measuring instruments, 16 monitoring well pipes, 17 monitoring well covers, 18 first turbidity sensors, 19 multi-parameter sensors, 20 first water valves, 21 data transmission networks, 22 water level measuring instrument sleeve pipe covers, 23 spray heads, 24 flow valves, 25 pressure regulating valves, 26 water conveying branch pipes, 27 three-way regulating valves, 28 water quality monitoring boxes, 29 second turbidity sensors, 30 pH value sensors, 31 temperature sensors, 32 water conveying main pipes, 33 pump boosting pressure, 34 a check valve, 35 a main water pipe, 36 a flow abandoning well, 37 a water inlet of the flow abandoning well, 38 an overflow port, 39 a water outlet of the flow abandoning well, 40 a flow abandoning port, 41 a flow abandoning water valve, 42 a water storage tank, 43 a second reverse filtering isolation layer, 44 a water storage tank water inlet, 45 a water level measuring instrument sleeve, 46 a second water level measuring instrument, 47 a water storage tank water outlet, 48 a second water valve, 49 a full-penetration type asphalt pavement central line, 50 a full-penetration type asphalt pavement side line, 51 a main water pipe, 52 infiltration water delivery branch pipes, 53 branch pipe caps, 54 cross-shaped four-way pipe fittings, 55 branch pipe water outlets, 56 well bodies, 57 cover plates, 58 first hooks, 59 second hooks, 60 third hooks, 61 water sample collection bottles, 62 telescopic pull rods, 63 data transmission lines, 64T-shaped three-way pipe fittings, 65 water quality monitoring well main well pipes, 66 water quality monitoring well auxiliary well pipes, 67 water quality monitoring well main well caps and 68 water quality monitoring well auxiliary well caps.

Detailed Description

The specific structure of the present invention is described in detail with reference to fig. 1 to 12. The full-penetration asphalt pavement system capable of effectively controlling the rainwater runoff pollution of the pavement comprises a full-penetration asphalt pavement structure 1, a water quality monitoring module 3, a runoff storage module 4, a runoff utilization module 5 and a computer control module 6. The fully-permeable asphalt pavement structure 1 comprises a permeable asphalt mixture surface layer 7, a large-particle-diameter permeable asphalt mixture base layer 8, a single-particle-diameter gravel water storage layer 9, a first reverse filtration isolation layer 10 and a medium coarse sand permeable cushion layer 11 which are sequentially arranged from top to bottom, impermeable geotextiles 12 are laid on two sides of the fully-permeable asphalt pavement structure 1, and an permeable water delivery pipe network 13 is embedded in the medium coarse sand permeable cushion layer 11; the permeable water pipe network 13 is communicated with a water inlet 37 of the abandoning well, and a first water valve 20 is arranged at the water inlet 37 of the abandoning well.

The permeable water pipe network 13 comprises a permeable water delivery main pipe 51 and a permeable water delivery branch pipe 52 which are arranged along the direction of a central line 49 of the full-permeable asphalt pavement, the permeable water delivery main pipe 51 and the permeable water delivery branch pipe 52 are mutually communicated through a cross-shaped four-way pipe 54, the cross-shaped four-way pipe 54 is arranged at the middle section of the permeable water delivery branch pipe 52, one end of the permeable water delivery branch pipe 52 is provided with a branch pipe cover 53, the other end is a branch pipe water outlet 55 and is communicated with a water inlet 37 of the drainage well, the permeable water delivery branch pipe 52 is obliquely arranged, one end of the permeable water delivery branch pipe 52, which is provided with the branch pipe cover 53, is higher than the end, which is communicated with the water inlet 37 of the drainage well, of the permeable water delivery branch pipe 52, and the communicated end of the.

According to specific use requirements, the permeable asphalt mixture surface layer 7 is made of a PAC-16 permeable asphalt mixture, and the thickness is 50-100 mm; the large-particle-size water-permeable asphalt mixture base layer 8 is made of LSPM-25 large-particle-size water-permeable asphalt mixture, and the thickness of the base layer is 100-150 mm. Both the PAC-16 permeable asphalt mixture and the LSPM-25 large-particle-size permeable asphalt mixture adopt high-viscosity modified asphalt, and the dynamic viscosity at 60 ℃ is not less than 60000Pa & s; and impurities are prevented from being mixed in the construction process so as to influence the use effect of the system. The single-particle-size crushed stone water storage layer 9 adopts limestone crushed stone aggregates with the particle size of 13.2mm or 16.0mm, and the thickness is 350-500 mm; the limestone macadam is fully cleaned before use and is dried and dustproof, and other macadams or impurities are prevented from being mixed in the construction process, so that the use effect of the system is influenced. The thicknesses of the permeable asphalt mixture surface layer 7, the large-particle-size permeable asphalt mixture base layer 8 and the single-particle-size gravel water storage layer 9 can be determined according to rainfall conditions or design requirements of project using places.

The first reverse filtering and isolating layer 10 of the full-penetration asphalt pavement structure 1 is paved into two layers from bottom to top by adopting clean water-permeable geotextile; the permeable geotextile uses polyester staple fiber needle-punched geotextile. The medium and coarse sand permeable cushion layer 11 is made by paving machine-made sand or river sand, and the thickness is 210 mm; fully cleaning the machine-made sand or river sand before laying and drying. During construction, two layers are paved, wherein the paving thickness of the lower layer is 50mm, and the paving thickness of the upper layer is 160 mm; meanwhile, other aggregates or impurities are prevented from being mixed in the construction process, so that the use effect of the system is influenced. The full-penetration type asphalt pavement structure 1 is integrally paved in a road bed with one layer of impermeable geotextile 12 paved on two sides, and in order to avoid the influence of rainwater runoff permeating into a soil foundation on the strength and stability of a roadbed, one layer of impermeable geotextile is paved at the slope toe of the roadbed according to an L shape.

The permeable water delivery pipe network 13 embedded in the medium-coarse sand permeable cushion layer 11 comprises a permeable water delivery main pipe 51 and a permeable water delivery branch pipe 52, the permeable water delivery main pipe 51 and the permeable water delivery branch pipe 52 are both laid in a tree shape, the whole body of the permeable water delivery main pipe 51 and the permeable water delivery branch pipe 52 keeps a 1.0% -1.5% one-way cross slope towards one side of a green land of a road, the permeable water delivery branch pipes 52 are connected into the drainage wells 36 arranged along the road at intervals of 30-50 m, and the cross-shaped four-way pipe 54 is made of PP materials. The opening and closing of the first water valve 20 disposed in the abandonment well water inlet 37 may be remotely controlled by the computer control module 6. In normal rainfall weather, the first water valve 20 is in a closed state, and at the moment, the fully permeable asphalt pavement structure 1 is in a water purification mode; when the runoff water quality inside the full-penetration type asphalt pavement structure 1 is monitored to meet the discharge requirement, the first water valve 20 is opened, the full-penetration type asphalt pavement structure 1 is switched from the water purification mode to the quick discharge mode, and the regenerated runoff can be discharged into the runoff storage module. The regenerated runoff is rainwater runoff which is deeply purified by the full-penetration type asphalt pavement structure 1 and meets the water quality requirement.

The main osmotic delivery pipe 51 and the branch osmotic delivery pipe 52 of the osmotic delivery pipe network 13 are both made of PP pipes with a nominal diameter of 160mm, and the pipe walls are provided with a plurality of through holes with a diameter of 10 mm. The laying work of the main permeating water conveying pipe 51 and the branch permeating water conveying pipes 52 is started after the lower layer construction of the medium coarse sand permeable cushion layer 11 is completely finished, and a layer of clean permeable geotextile is wrapped on the outer wall of the pipes during the laying work; and after the paving work of the infiltration water pipe is finished, continuously paving the upper layer of the medium coarse sand permeable cushion layer 11.

The water quality monitoring module 3 comprises a monitoring well pipe 16, the monitoring well pipe 16 is vertically embedded in a full-penetration asphalt pavement structure 1, the bottom end of the monitoring well pipe 16 is communicated with a permeable water conveying pipe network 13 through a T-shaped three-way pipe fitting 64, the edge of the bottom of the well pipe 16 is provided with a first turbidity sensor 18 (such as a 485 type turbidity sensor of Huazhixing) and a multi-parameter sensor 19 (such as a CPS11D type multi-parameter sensor of Enaddress + Hauser), a water sample collecting device 14 (such as a CG-00 series water sample collecting device of Grace) and a first water level measuring instrument 15 (such as a WH311 type water level measuring instrument of Wan and Dongfuwan) are arranged at the communication position of the permeable water conveying pipe network 13 and the monitoring well pipe 16, the first turbidity sensor 18, the multi-parameter sensor 19 and the first water level measuring instrument 15 are both in wireless connection with the computer control module 6 through a data transmission network 21, and a monitoring well cover 17 is arranged at the top end of the monitoring well pipe 16. The monitoring well pipe 16 comprises a water quality monitoring well main well pipe 65 and a water quality monitoring well auxiliary well pipe 66, the water quality monitoring well auxiliary well pipe 66 is in close contact with the side wall of the water quality monitoring well main well pipe 65, the water quality monitoring well main well pipe 65 is communicated with the permeation water pipe network 13 through a T-shaped three-way pipe fitting 64, the top end of the water quality monitoring well main well pipe 65 is provided with a water quality monitoring well main well cover 67, and the top end of the water quality monitoring well auxiliary well pipe 66 is provided with a water quality monitoring well auxiliary well cover.

The first turbidity sensor 18 and the multi-parameter sensor 19 are embedded on the side wall of the main well pipe 65 of the water quality monitoring well, the detection parts of the first turbidity sensor 18 and the multi-parameter sensor 19 are arranged in the main well pipe 65 of the water quality monitoring well (the sensors need to keep an elevation angle of at least 15 degrees with the horizontal direction when being installed), and the first turbidity sensor 18 and the multi-parameter sensor 19 are in wired connection with the computer control module 6 through a data transmission line 63. The data transmission line 63 communicated with the first turbidity sensor 18 and the multi-parameter sensor 19 penetrates through the water quality monitoring well auxiliary well pipe 66, the first water level measuring instrument 15 is arranged in the water quality monitoring well main well pipe 65, the first water level measuring instrument 15 is in wired connection with the computer control module 6 through the data transmission line 63, and the data transmission line 63 communicated with the first water level measuring instrument 15 penetrates through the water quality monitoring well main well pipe 65. The water sample collecting device 14 comprises a telescopic pull rod 62, a second hook 59 and a third hook 60 are respectively arranged at two ends of the telescopic pull rod 62, the second hook 59 is detachably connected with the first hook 58, the first hook 58 is fixedly installed on the top end edge of the inner wall of the main well pipe 65 of the water quality monitoring well, and the third hook 60 is detachably connected with a water sample collecting bottle 61.

The monitoring well pipe 16 of the water quality monitoring module 3 is a combined monitoring well, the main well pipe 65 of the water quality monitoring well is in a hollow cylindrical shape, the auxiliary well pipe 66 of the water quality monitoring well is in a hollow polygonal cylindrical shape, the main well pipe 65 of the water quality monitoring well is a PP pipe with a nominal diameter of 160mm, and after the construction of the monitoring well pipe 16 is finished, the top of the monitoring well pipe is 15mm higher than the designed elevation of the full-penetration asphalt pavement. The water quality monitoring module is arranged at one position every 1000-1500 m along the road, and the road with the length less than 1500m can be arranged at one position in the middle section of the road. The T-shaped three-way pipe fitting 64 is made of PP materials, a first hook 58 is fixedly installed at the upper edge of the inner side wall of a main well pipe 65 of the water quality monitoring well, the top end of the telescopic pull rod 62 is hung on the first hook 58, and a water sample collecting bottle 61 hung at the bottom end of the telescopic pull rod 62 can collect a regenerated runoff sample in the permeable water pipe network 13. The telescopic pull rod 62 can facilitate the collection personnel to take out the water sample collection bottle 61.

The runoff storage module 4 comprises a flow abandoning well 36 and a water storage tank 42, the flow abandoning well 36 comprises a well body 56, a cover plate 57 is arranged at the top of the well body 56, and the well body 56 and the cover plate 57 are both made of PP materials. The upper edge of the side wall of the well body 56 is provided with a flow abandoning well water inlet 37 and an overflow port 38, and the lower edge of the side wall of the well body 56 is provided with a flow abandoning well water outlet 39; the central position of the bottom wall of the well body 56 is provided with a flow abandoning port 40, a flow abandoning water valve 41 is arranged outside the flow abandoning port 40, a water outlet 39 of the flow abandoning well is communicated with a water inlet 44 of the water storage tank, and the water inlet 44 of the water storage tank is communicated with a water storage tank 42. A water storage tank water outlet 47 is formed in the edge of the bottom of the side wall of the water storage tank 42, and a second water valve 48 is arranged at the water storage tank water outlet 47; a level gauge sleeve 45 extends through the top wall of the reservoir 42 to the bottom of the reservoir 42. The first water valve, the water discarding valve and the second water valve are all in wireless connection with the computer control module through a data transmission network.

The second water level measuring instrument 46 is arranged in a water level measuring instrument sleeve pipe 45, the water level measuring instrument sleeve pipe 45 is a PP sleeve pipe, the water level measuring instrument sleeve pipe 45 is vertically arranged, and the top of the water level measuring instrument sleeve pipe is provided with a water level measuring instrument sleeve pipe cover 22 made of PP materials; and after the construction is finished, the top of the sleeve pipe cover 22 of the water level measuring instrument is higher than the ground elevation of the road green belt by 15 mm. When the computer control module 6 monitors that the water level in the water storage tank 42 is too low and is not enough to meet the requirements of spray irrigation or road surface cleaning operation and sends out a warning signal, the working personnel can start other water sources in time. A second water level measuring instrument 46 (for example, a WH311 type water level measuring instrument of the oriental republic) is wirelessly connected with the computer control module 6 through the water level measuring instrument bushing 45 via the data transmission network 21. And the abandoning well 36 is positioned below the level of the osmotic water pipe network 13, and the water storage tank 42 is positioned below the level of the water outlet 39 of the abandoning well.

The flow abandoning valve 41 which can be opened and closed by the remote control of the computer control module 6 is arranged at the communication part of the flow abandoning port 40 of the flow abandoning well 36 and the municipal rainwater pipeline. In normal rainfall weather, the flow abandoning water valve 41 is in a closed state, the flow abandoning well 40 is in a transfer mode, and at the moment, after the first water valve 20, the regenerated runoff can be directly discharged into the water storage tank 42. In abnormal rainfall weather, the flow abandoning water valve 41 and the first water valve 20 need to be opened simultaneously, so that the full-penetration asphalt pavement structure is converted into a quick drainage mode, and at the moment, rainwater permeating into the pavement structure is directly drained into a municipal rainwater pipe network through the flow abandoning well 36, so that no runoff is generated on the pavement, and the safety of system operation is ensured. The abandoning well 36, the water storage tank 42 and the water level measuring instrument casing pipe 44 are all embedded in the road green belt 2; and the side wall of the water storage tank 42 is in a mesh structure, and a second reverse filtering isolation layer 43 is also paved outside the side wall of the water storage tank 42.

The runoff utilization module 5 comprises a booster pump 33, the water inlet end of the booster pump 33 is communicated with the water outlet 47 of the water storage tank through a water main pipe 35, the water outlet end of the booster pump 33 is communicated with a water delivery main pipe 32, and the water delivery main pipe 32 penetrates through the water quality monitoring box 28. The water quality monitoring box 28 is used for monitoring water quality data in the water supply main pipe 32, the water supply main pipe 32 is communicated with the water supply branch pipes 26, each water supply branch pipe 26 is communicated with the spray heads 23, and the spray heads 23 are distributed on the surface of the road green belt 2. The water delivery main pipe 35 is provided with a check valve 34, and the water delivery main pipe 32 is provided with a flow valve 24, a pressure regulating valve 25, and a three-way regulating valve 27. A second turbidity sensor 29 (for example, a 485 type turbidity sensor in the Huazhixing), a pH sensor 30 (for example, a HSTL-PH02 type pH sensor in the Huazhixing) and a temperature sensor 31 (for example, a HSTL-103 type temperature sensor in the Huazhixing) are arranged in the water quality monitoring box 28; the flow valve 24, the pressure regulating valve 25, the three-way regulating valve 27, the second turbidity sensor 29, the pH value sensor 30 and the temperature sensor 31 are all wirelessly connected with the computer control module 6 through the data transmission network 21.

The water storage tank 42 adopts a PP module water storage tank, each group of module water storage tanks 42 is formed by combining a plurality of monomer modules into a strip shape and laid along the road, and the top earthing thickness is about 0.8-1.0 m; the water storage rate is not less than 95 percent, and the specific water storage volume is determined according to the rainfall condition or the design requirement of the project using place. The second reverse filtering and isolating layer 43 laid outside the side wall of the water storage tank 42 adopts clean permeable geotextile, and 2-4 layers of filter cloth are wrapped outside the PP module water storage tank; the specific wrapping layer number of the permeable geotextile is determined according to the permeability coefficient of the soil of the tunnel green belt used by the project, namely: the larger the permeability coefficient is, the more the number of layers of the permeable soil engineering cloth is; on the contrary, the smaller the permeability coefficient of the soil is, the fewer the number of permeable soil engineering layers is. Meanwhile, when the second water valve 48 is in a closed state under the remote control of the computer control module 6, the regenerated runoff in the water storage tank of the PP module can only slowly permeate into the surrounding soil through the reverse filtration isolation layer 2.

The three-way regulating valve 27 of the main water supply pipe 32 is an electric shunt valve, and the regenerated runoff in the main water supply pipe 32 can be selectively conveyed to the branch water supply pipe 26 for road green land irrigation or injected into a water tank of a street washing vehicle or a washing device for road washing through an external drainage hose by remotely controlling the opening direction of the valve. The size of the connector and the interface of the external drainage hose are respectively matched with the external interface of the three-way regulating valve 27 and the water tank water filling port of the street washing vehicle or the washing device. When the regenerated runoff needs to be used for road surface washing operation, the external interfaces of the drainage hose and the three-way regulating valve 27 and the water filling port of the water tank are well butted, the opening direction of the three-way regulating valve 27 and the lifting pressure of the booster pump 33 are set, the second water valve 48 and the booster pump 33 are sequentially opened, and the regenerated runoff temporarily stored in the water storage tank of the PP module can be directly filled into the water tank of a street washing vehicle or a washing device. When the regenerated runoff needs to be used for road green land irrigation, the opening direction of the three-way regulating valve 27 and the lifting pressure of the booster pump 33 are set, and then the regenerated runoff stored in the water storage tank of the PP module can be directly conveyed to each water conveying branch pipe for road green land irrigation operation by the second water valve 48 and the booster pump 33 in sequence.

It can be understood that the purpose of providing the check valve 34 on the main water pipe 35 of the runoff utilization module 5 is to ensure that the regenerated runoff in the pipeline does not flow back to the water storage tank 42 due to gravity after the booster pump 33 stops operating. The second turbidity sensor 29, the pH value sensor 30 and the temperature sensor 31 in the water quality monitoring box 28 are all installed in an immersion manner, so that the water quality indexes such as turbidity, pH value and temperature of the regenerated runoff in the water delivery main pipe 32 are monitored in real time, the monitoring data are transmitted to the computer control module 6 in real time on line through the data transmission network 21, and the water quality condition of the sprinkling irrigation water is timely known through comparison of the index values and standard specified values. Moreover, the working states of the booster pump 33 and the three-way regulating valve 27 can be remotely controlled by the computer control module 6, and the working states and working parameters can be checked or set by the computer control module 6. The flow valve and the pressure regulating valve are respectively connected with the computer control module 6 through a data transmission line, and the flow and the water pressure of the regenerated runoff in each water supply branch pipe can be monitored through the computer control module 6.

The fully-permeable asphalt pavement system capable of effectively controlling the pollution of the rainwater runoff on the pavement has comprehensive functions, is used for constructing urban road sidewalks and non-motor vehicle lanes, ensures that the traffic capacity of the road is not influenced, solves the problem of on-site consumption of the rainwater runoff on the pavement during rainfall, realizes on-site storage and on-site recycling of regenerated runoff, effectively prevents the polluted runoff from causing secondary pollution to the surrounding environment, and is a breakthrough of the fully-permeable asphalt pavement technology. Meanwhile, the system adopts a full-penetration asphalt pavement structure capable of effectively reducing the pollution load of the rainwater runoff on the pavement as a facility for purifying the rainwater runoff on the pavement, so that the capital for purchasing water purifying equipment by one-time investment is saved, and the main bottleneck of the application of the full-penetration asphalt pavement technology is broken through. Moreover, the water quality monitoring equipment provided by the system realizes real-time online monitoring of the working state of the full-penetration asphalt pavement and the conventional indexes of the quality of the reclaimed runoff water, ensures the quality of the sprinkling irrigation water for the green land of the road, the cleaning operation water for the pavement and the underground seepage water, and provides scientific and effective information for the operation, maintenance and repair of the system. In addition, the regenerated runoff in the system can be directly used as water for road green land irrigation and road surface cleaning operation, so that the construction cost of a regenerated water pipeline is saved, the utilization rate of the regenerated runoff is improved, the consumption of tap water is reduced, and the popularization and the application of the system are facilitated.

Claims

1. The utility model provides a can effective control road surface rainfall runoff pollute pass through formula bituminous paving system entirely, is including being used for collecting and purifying full formula bituminous paving structure (1) of rainwater, its characterized in that: the all-permeable asphalt pavement structure (1) is composed of a permeable asphalt mixture surface layer (7), a large-particle-diameter permeable asphalt mixture base layer (8), a single-particle-diameter gravel water storage layer (9), a first reverse filtration isolation layer (10) and a medium-coarse sand permeable cushion layer (11) which are sequentially arranged from top to bottom, impermeable geotextiles (12) are laid on two sides of the all-permeable asphalt pavement structure (1), and a permeable water delivery pipe network (13) is embedded in the medium-coarse sand permeable cushion layer (11); the method comprises the following steps that (1) regenerated runoff formed by decontaminating rainwater collected by a full-penetration asphalt pavement structure (1) is discharged into a runoff storage module (4), and a runoff abandoning well (36) is arranged in the runoff storage module (4); the permeable water conveying pipe network (13) of the full-permeable asphalt pavement structure (1) is communicated with a water inlet which is arranged on a flow abandoning well (36) of the runoff storage module (4) and used for inputting regenerated runoff; an overflow port (38) and a discarding port (40) of the discarding well (36) are respectively communicated with a municipal rainwater pipe network, and a first water valve (20) is arranged between a water inlet (37) of the discarding well and a water outlet of the permeable water pipe network (13); a water outlet used for discharging the regenerated runoff on the flow abandoning well (36) is sequentially connected with a water storage tank (42) and a runoff utilization module (5) used for carrying out on-site secondary utilization on the regenerated runoff; the full-penetration asphalt pavement structure (1) is also internally provided with a water quality monitoring module (3) for monitoring the purification effect of the collected rainwater runoff and the regeneration runoff water quality condition of the discharged pavement structure, and the water quality monitoring module (3) is in wireless connection with the computer control module (6) through a data transmission network (21).

2. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 1, which is characterized in that: the permeable water delivery pipe network (13) embedded in the medium coarse sand permeable cushion (11) of the full-permeable asphalt pavement structure (1) comprises a permeable water delivery main pipe (51) and a permeable water delivery branch pipe (52) which are arranged along the direction of a center line (49) of the full-permeable asphalt pavement; the main osmotic water delivery pipe (51) and the branch osmotic water delivery pipe (52) are communicated with each other through a cross-shaped four-way pipe fitting (54), and the cross-shaped four-way pipe fitting (54) is arranged at the middle section of the branch osmotic water delivery pipe (52); one end of the seepage water delivery branch pipe (52) is provided with a branch pipe cover (53), and the other end of the seepage water delivery branch pipe (52) is a water outlet communicated with a water inlet (37) of the abandoned flow well; the infiltration water delivery branch pipe (52) is obliquely arranged, and one end of the infiltration water delivery branch pipe (52) provided with a branch pipe cover (53) is higher than one end of a water outlet of the infiltration water delivery branch pipe (52) in the vertical direction; meanwhile, the communication end of the water outlet of the permeation water delivery branch pipe (52) and the water inlet (37) of the abandoning well extends out of the side line of the full-penetration asphalt pavement.

3. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 1, which is characterized in that: the flow abandoning well (36) of the runoff storage module (4) comprises a well body (56), a cover plate (57) is arranged at the top of the well body (56), a flow abandoning well water inlet (37) and an overflow port (38) are arranged at the upper edge of the side wall of the well body (56), a flow abandoning well water outlet (39) is arranged at the lower edge of the side wall of the well body (56), a flow abandoning port (40) is arranged at the central position of the bottom wall of the well body (56), and a flow abandoning water valve (41) is arranged outside the flow abandoning port (40); the water outlet (39) of the abandoning well is communicated with the water inlet (44) of the water storage tank, and the water inlet (44) of the water storage tank is communicated with the water storage tank (42); a water storage tank water outlet (47) is formed in the edge of the bottom of the side wall of the water storage tank (42), and the water storage tank water outlet (47) is connected with an inlet of the runoff utilization module (5); the flow abandoning well (36) is positioned below the horizontal plane of the permeable water conveying pipe network (13), and the water storage tank (42) is positioned below the horizontal plane of the water outlet (39) of the flow abandoning well.

4. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 3, characterized in that: a water level measuring instrument sleeve (45) is arranged in the water storage tank (42), the water level measuring instrument sleeve (45) penetrates through the top wall of the water storage tank (42) and extends to the bottom of the water storage tank (42), and a water level measuring instrument sleeve pipe cover (22) is arranged at the top end of the water level measuring instrument sleeve (45); a second water level measuring instrument (46) extending into the bottom of the water storage tank (42) is arranged in the water level measuring instrument sleeve (45), and the second water level measuring instrument (46) is in wireless connection with the computer control module (6) through a data transmission network (21).

5. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 1, which is characterized in that: the runoff utilization module (5) comprises a booster pump (33), the water inlet end of the booster pump (33) is communicated with the water outlet (47) of the water storage tank through a main water delivery pipe (35), and a second water valve (48) is arranged at the joint of the main water delivery pipe (35) and the water outlet (47) of the water storage tank; the water outlet end of the booster pump (33) is communicated with a water delivery main pipe (32), and the water delivery main pipe (32) passes through a water quality monitoring box (28) for monitoring the water quality data of the regenerated runoff in the pipe body of the water delivery main pipe; meanwhile, the water supply main pipe (32) is communicated with the water supply branch pipes (26), each water supply branch pipe (26) is provided with a plurality of spray heads (23), and the spray heads (23) are distributed on the surface of the road green belt (2).

6. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 5, which is characterized in that: a check valve (34) is arranged on the water delivery main pipe (35), and a flow valve (24), a pressure regulating valve (25) and a three-way regulating valve (27) are arranged on the water delivery main pipe (32); a second turbidity sensor (29), a pH value sensor (30) and a temperature sensor (31) are arranged in the water quality monitoring box (28); the flow valve (24), the pressure regulating valve (25), the three-way regulating valve (27), the second turbidity sensor (29), the pH value sensor (30) and the temperature sensor (31) are all in wireless connection with the computer control module (6) through a data transmission network (21).

7. The fully permeable asphalt pavement system capable of effectively controlling the runoff pollution of the rainwater on the pavement according to claim 1, which is characterized in that: the water quality monitoring module (3) comprises a monitoring well pipe (16), the monitoring well pipe (16) is vertically buried in the fully-permeable asphalt pavement structure (1), and a monitoring well cover (17) is arranged at the top end of the monitoring well pipe (16); the bottom end of the monitoring well pipe (16) is communicated with the permeable water pipe network (13) through a T-shaped tee pipe fitting (64), and the edge of the lower part of the inner side of the monitoring well pipe (16) is provided with a first turbidity sensor (18) and a multi-parameter sensor (19); a water sample collecting device (14) and a first water level measuring instrument (15) are arranged at the communication part of the permeable water pipe network (13) and the monitoring well pipe (16); the first turbidity sensor (18), the multi-parameter sensor (19) and the first water level measuring instrument (15) are all in wireless connection with the computer control module (6) through a data transmission network (21).

8. The fully permeable asphalt pavement system capable of effectively controlling the runoff contamination of road surface rainwater according to claim 7, characterized in that: the monitoring well pipe (16) comprises a water quality monitoring well main well pipe (65) and a water quality monitoring well auxiliary well pipe (66), and the water quality monitoring well auxiliary well pipe (66) is tightly contacted with the side wall of the water quality monitoring well main well pipe (65); the water quality monitoring well main well pipe (65) is communicated with the permeation water pipe network (13) through a T-shaped three-way pipe fitting (64), and the top end of the water quality monitoring well main well pipe (65) is provided with a water quality monitoring well main well cover (67); and an auxiliary well cover (68) of the water quality monitoring well is arranged at the top end of the auxiliary well pipe (66) of the water quality monitoring well.

9. The fully permeable asphalt pavement system capable of effectively controlling the runoff contamination of road surface rainwater according to claim 7, characterized in that: the first turbidity sensor (18) and the multi-parameter sensor (19) are embedded on the side wall of the main well pipe (65) of the water quality monitoring well, the detection parts of the first turbidity sensor (18) and the multi-parameter sensor (19) are positioned in the main well pipe (65) of the water quality monitoring well, and the first turbidity sensor (18) and the multi-parameter sensor (19) are in wired connection with the computer control module (6) through a data transmission line (63); a data transmission line (63) communicated with the first turbidity sensor (18) and the multi-parameter sensor (19) and penetrating through an auxiliary well pipe (66) of the water quality monitoring well; the first water level measuring instrument (15) is arranged in the water quality monitoring well main well pipe (65), the first water level measuring instrument (15) is in wired connection with the computer control module (6) through a data transmission line (63), and the data transmission line (63) communicated with the first water level measuring instrument (15) penetrates through the water quality monitoring well main well pipe (65); the water sample collecting device (14) comprises a telescopic pull rod (62), and a second hook (59) and a third hook (60) are respectively arranged at two ends of the telescopic pull rod (62); the second hook (59) of the telescopic pull rod (62) is detachably connected with the first hook (58) fixedly mounted at the edge of the top end of the inner wall of the main well pipe (65) of the water quality monitoring well, and the third hook (60) of the telescopic pull rod (62) is detachably connected with the water sample collecting bottle (61).