阅读说明：本技术 一种海绵城市市政雨水利用系统 (Sponge city municipal rainwater utilization system ) 是由 杨华 郑振龙 傅祚美 于 2020-11-28 设计创作，主要内容包括：本申请涉及一种海绵城市市政雨水利用系统,涉及海绵城市的技术领域,其包括人行道路和蓄水系统,人行道路包括从下至上依次设置的防水基层和渗水路面,还包括：第一防水土工布,第一防水土工布设置有若干条,各第一防水土工布沿渗水路面宽度方向延伸,且各第一防水土工布沿渗水路面的长度方向排布,第一防水土工布上设置有若干道通孔；其中,第一防水土工布的周侧与防水基层上表面密封连接,第一防水土工布与防水基层之间形成排水通道,排水通道与蓄水系统相连通。本申请具有改善渗水路面在长期使用后会大幅度降低的效果。(The utility model relates to a sponge city municipal administration rainwater utilizes system relates to the technical field in sponge city, and it includes pedestrian's road and retaining system, and pedestrian's road includes from supreme waterproof basic unit and the infiltration road surface that sets gradually down, still includes: the first waterproof geotextile is provided with a plurality of strips, each first waterproof geotextile extends along the width direction of the water seepage road surface, each first waterproof geotextile is arranged along the length direction of the water seepage road surface, and a plurality of through holes are arranged on each first waterproof geotextile; wherein, the week side and the waterproof basic unit upper surface sealing connection of first waterproof geotechnological cloth, form drainage channel between first waterproof geotechnological cloth and the waterproof basic unit, drainage channel is linked together with water storage system. This application has the effect that can reduce by a wide margin after long-term the use of improvement infiltration road surface.)

1. The utility model provides a sponge city municipal rainwater utilizes system, includes pedestrian road (1) and retaining system, pedestrian road (1) includes from supreme waterproof basic unit (11) and infiltration road surface (12) that set gradually down, its characterized in that still includes:

the waterproof geotextile fabric comprises a plurality of first waterproof geotextile fabrics (211), wherein the first waterproof geotextile fabrics (211) extend along the width direction of the water seepage pavement (12), the first waterproof geotextile fabrics (211) are distributed along the length direction of the water seepage pavement (12), and the first waterproof geotextile fabrics (211) are provided with a plurality of through holes (215);

the periphery of the first waterproof geotextile (211) is connected with the upper surface of the waterproof base layer (11) in a sealing mode, a drainage channel is formed between the first waterproof geotextile (211) and the waterproof base layer (11), and the drainage channel is communicated with a water storage system.

2. The system of claim 1, further comprising:

the waterproof geotextile fabric comprises a first waterproof concrete seal (214), wherein the first waterproof concrete seal (214) is provided with a plurality of lines, and the first waterproof concrete seal (214) is uniformly distributed on two long side sides of a first waterproof geotextile fabric (211);

wherein, one of them long avris of first waterproof concrete seal (214) is laid on first waterproof geotechnological cloth (211), another long avris of first waterproof concrete seal (214) is laid on waterproof basic unit (11).

3. The system of claim 1, further comprising:

the first reinforcing steel bar mesh (213), the first reinforcing steel bar mesh (213) is provided with a plurality of pieces, and each first reinforcing steel bar mesh (213) is respectively arranged on each first waterproof geotextile (211);

wherein, two long sides of the first reinforcing mesh (213) extend out of two long sides of the first waterproof geotextile (211) respectively, and the two long sides of the first reinforcing mesh (213) are fixed with the waterproof base layer (11) into a whole.

4. The system of claim 1, further comprising:

the number of the second waterproof geotextiles (221) is two, the two second waterproof geotextiles (221) are respectively arranged on two long sides of the waterproof base layer (11), and the two long sides of the second waterproof geotextile (221) are hermetically connected with the surface of the waterproof base layer (11);

wherein, the waterproof geotechnical cloth of second (221) is covered on the tip of first waterproof geotechnical cloth (211), the waterproof geotechnical cloth of second (221) is covered the part on first waterproof geotechnical cloth (211) and is welded with first waterproof geotechnical cloth (211), form the water supply passageway with the water storage system intercommunication between waterproof geotechnical cloth of second (221) and waterproof basic unit (11).

5. The system of claim 1, further comprising:

a plurality of second waterproof concrete seals (223), wherein the second waterproof concrete seals (223) are uniformly distributed on two long sides of a second waterproof geotextile (221);

wherein, one of them long avris of second waterproof concrete seal (223) is laid on first waterproof geotechnological cloth (211), another long avris of second waterproof concrete seal (223) is laid on waterproof basic unit (11), second waterproof concrete seal (223) are close to the part cover on first waterproof geotechnological cloth (211).

6. The system of claim 1, further comprising:

a plurality of second reinforcing steel bar meshes (222), wherein the second reinforcing steel bar meshes (222) are provided with a plurality of second reinforcing steel bar meshes, and the two second reinforcing steel bar meshes (222) are respectively arranged on the two second waterproof geotextile fabrics (221);

wherein, two long sides of the second reinforcing steel bar net (222) respectively extend out of two long sides of the second waterproof geotextile (221), and the two long sides of the second reinforcing steel bar net (222) are fixed with the waterproof base layer (11) into a whole.

7. The system of claim 1, further comprising:

the waterproof structure comprises corrugated ribs (112), wherein each corrugated rib (112) is arranged on a waterproof base layer (11), and each corrugated rib (112) is respectively covered by each first waterproof geotextile (211) and each second waterproof geotextile (221);

wherein, the rib (112) and the waterproof base layer (11) are integrally formed.

8. The system of claim 1, further comprising:

the thimble (212), the said thimble (212) has several, the lower end of each said thimble (212) is inserted and located in the lower surface of the first waterproof geotextile (211) through the via hole (215), there are water channels in each said thimble (212), said water channel is linked with water drainage channel;

the outer wall of the thimble (212) is hermetically connected with the through hole (215).

9. The system of claim 8, further comprising:

the waterproof geotextile fabric comprises a plurality of jacks (111), wherein the jacks (111) are arranged, each jack (111) is arranged on a waterproof base layer (11), and each jack (111) is distributed below each first waterproof geotextile fabric (211);

the lower end of each thimble (212) is inserted into the insertion hole (111).

10. A sponge urban municipal rainwater utilization system according to claim 1, characterized in that said porous pavement (12) comprises:

the first water seepage concrete layer (121), the said first water seepage concrete layer (121) adopts the way of guniting to shape on the waterproof basic unit (11);

and the second water-permeable concrete layer (122) is formed on the first water-permeable concrete layer (121) in a pouring mode, and the second water-permeable concrete layer (122) is formed on the first water-permeable concrete layer (121) in a pouring mode.

Technical Field

The application relates to the technical field of sponge cities, in particular to a water recycling technology of a sponge city.

Background

The sponge city is a new generation of rain and flood management concept for urban rain and flood management, and refers to that the city has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters caused by rainwater and the like, and can be also called as a water elasticity city. When raining, the utility model absorbs water, stores water, seeps water and purifies water, and when needed, the stored water is released and utilized. The sponge city material is substantially applied, has the characteristics of excellent water seepage, compression resistance, wear resistance, skid resistance, environmental protection, attractive and colorful appearance, comfort, easy maintenance, sound absorption, noise reduction and the like, and becomes a breathable town landscape pavement.

Among the correlation technique, in the district road, the recreation square, pedestrian's activity areas such as garden road and open parking area, generally can set up municipal rainwater and utilize the system, municipal rainwater utilizes the system mainly to include the pedestrian road of constituteing by waterproof basic unit and infiltration road surface, then be provided with retaining systems such as concave greenery patches in the both sides of pedestrian road, when rainy day, the rainwater can flow to waterproof basic unit on through the infiltration road surface when falling the pavement, then in the water retaining system is flowed to through waterproof basic unit, the rainwater of retrieving in the retaining system is used for spraying irrigation at last.

In view of the above-mentioned related art, the present inventors have considered that a large number of fine pores exist on the surface of the water permeable pavement through which rainwater can permeate, but the water permeable pavement has a problem of clogging in long-term use, resulting in a great reduction in water permeation efficiency of the water permeable pavement, and thus improvement is required.

Disclosure of Invention

In order to improve the problem that the infiltration road surface can reduce by a wide margin after long-term the use, this application provides a sponge city municipal rainwater utilizes system.

The application provides a sponge city municipal rainwater utilizes system adopts following technical scheme:

the utility model provides a sponge city municipal rainwater utilizes system, includes pedestrian road and retaining system, pedestrian road includes from the supreme waterproof basic unit and the infiltration road surface that sets gradually down, still includes:

the waterproof geotextile comprises a plurality of first waterproof geotextile bodies, each first waterproof geotextile body extends along the width direction of a water seepage road surface, each first waterproof geotextile body is arranged along the length direction of the water seepage road surface, and a plurality of through holes are formed in each first waterproof geotextile body;

the periphery of the first waterproof geotextile is connected with the upper surface of the waterproof base layer in a sealing mode, a drainage channel is formed between the first waterproof geotextile and the waterproof base layer, and the drainage channel is communicated with a water storage system.

Through adopting above-mentioned technical scheme, through the sealing connection relation between first waterproof geotechnological cloth and the waterproof basic unit, make can form the drainage channel with the water storage system intercommunication between first waterproof geotechnological cloth and the waterproof basic unit, when the infiltration road surface takes place to block up, can utilize water storage system to supply water in the drainage channel, water storage system's water supply finally can be discharged through the through-hole on the first waterproof geotechnological cloth, can upwards permeate rapidly under hydraulic effect from the through-hole discharged water, thereby reach the ejecting effect of dust that will be located infiltration road surface, make the infiltration ability influence of dust to the infiltration road surface reduce greatly, and, can also play the effect on moist infiltration road surface, make this town road temperature greatly reduced.

Optionally, the method further includes:

the waterproof geotextile comprises a first waterproof concrete seal strip, a second waterproof concrete seal strip and a waterproof geotextile, wherein the first waterproof concrete seal strip is provided with a plurality of channels, and the first waterproof concrete seal strips are uniformly distributed on two long sides of the first waterproof geotextile;

wherein, one of them long avris of first waterproof concrete strip of paper used for sealing is laid on first waterproof geotechnological cloth, another long avris of first waterproof concrete strip of paper used for sealing is laid on waterproof basic unit.

Through adopting above-mentioned technical scheme, utilize the cooperation between waterproof basic unit and the waterproof geotechnological cloth of first, can play the effect of sealing connection first waterproof geotechnological cloth and waterproof basic unit.

Optionally, the method further includes:

the first reinforcing steel bar mesh is provided with a plurality of pieces, and each first reinforcing steel bar mesh is arranged on each first waterproof geotextile;

wherein, two long avris of first reinforcing bar net stretch out outside two long avris of first waterproof geotechnological cloth respectively, two long avris of first reinforcing bar net are all fixed as an organic whole with waterproof basic unit.

Through adopting above-mentioned technical scheme, utilize first enhancement reinforcing bar net can play the effect that increases first waterproof concrete seal bulk strength, effectively improve first waterproof concrete's anti ability of splitting, ensure sealed effect, utilize first enhancement reinforcing bar net still to have the design ability, can be with the comparatively stable suppression of first waterproof geotechnological cloth on waterproof basic unit, before avoiding first waterproof concrete seal to pour the shaping, first waterproof geotechnological cloth is blown away by the wind.

Optionally, the method further includes:

the two pieces of second waterproof geotextile are arranged on the two long sides of the waterproof base layer respectively, and the two long sides of the second waterproof geotextile are connected with the surface of the waterproof base layer in a sealing manner;

wherein, the waterproof geotechnical cloth of second is covered on the tip at first waterproof geotechnical cloth, the waterproof geotechnical cloth of second is covered the part and the butt fusion of first waterproof geotechnical cloth on first waterproof geotechnical cloth, form the water supply channel with the water storage system intercommunication between waterproof geotechnical cloth of second and the waterproof basic unit.

Through adopting above-mentioned technical scheme, utilize the cooperation between waterproof geotechnological cloth of second and the waterproof basic unit, can form the water supply channel who is used for communicateing water storage system and each drainage channel for water storage system can supply water to each drainage channel.

Optionally, the method further includes:

the waterproof geotextile comprises a first waterproof concrete seal strip and a second waterproof concrete seal strip, wherein the first waterproof concrete seal strip is provided with a plurality of channels, and the second waterproof concrete seal strips are uniformly distributed on two long side sides of a first waterproof geotextile;

wherein, one of them long avris of second waterproof concrete strip of paper used for sealing is laid on first waterproof geotechnological cloth, another long avris of second waterproof concrete strip of paper used for sealing is laid on waterproof basic unit, the part that second waterproof concrete is close to on the first waterproof geotechnological cloth covers on the first waterproof geotechnological cloth.

Through adopting above-mentioned technical scheme, utilize the cooperation between waterproof concrete strip of paper used for sealing up and the waterproof basic unit of second, can play the effect of sealing up connection waterproof geotechnological cloth of second and waterproof basic unit, can seal up the junction between waterproof geotechnological cloth of second and the waterproof geotechnological cloth of first simultaneously.

Optionally, the method further includes:

the second reinforcing steel bar meshes are provided with a plurality of second reinforcing steel bar meshes, and the two second reinforcing steel bar meshes are respectively arranged on the two second waterproof geotextiles;

wherein, two long avris of reinforcing bar net are strengthened to the second stretch out the outside two long avris of waterproof geotechnological cloth of second respectively, reinforcing bar net is strengthened to the second two long avris all fixed as an organic whole with waterproof basic unit.

Through adopting above-mentioned technical scheme, utilize the second to strengthen the reinforcing bar net and can play the effect that increases the waterproof concrete strip of paper used for sealing bulk strength of second, effectively improve the anti ability of splitting of waterproof concrete of second, ensure sealed effect, utilize the second to strengthen the reinforcing bar net still has the design ability, can be with the comparatively stable suppression of the waterproof geotechnological cloth of second on waterproof basic unit, before avoiding the waterproof concrete strip of second to pour the shaping, the waterproof geotechnological cloth of second is blown away by wind.

Optionally, the method further includes:

the waterproof geotextile comprises first waterproof geotextile and second waterproof geotextile, and is characterized in that the waterproof base layer is provided with a plurality of first waterproof geotextile strips and a plurality of second waterproof geotextile strips;

wherein, stupefied muscle and waterproof basic unit integrated into one piece.

Through adopting above-mentioned technical scheme, utilize stupefied muscle can play the effect of propping up first waterproof geotechnological cloth and the waterproof geotechnological cloth of second for first waterproof geotechnological cloth and the waterproof geotechnological cloth of second homoenergetic remain certain clearance with the surface of waterproof basic unit, thereby be convenient for the water supply circulation in drainage channel and the water supply passageway.

Optionally, the method further includes:

the thimble is provided with a plurality of thimbles, the lower end of each thimble is inserted into the lower surface of the first waterproof geotextile through a through hole, a water outlet channel is arranged in each thimble, and the water outlet channel is communicated with the drainage channel;

the outer wall of the thimble is connected with the through hole in a sealing mode.

Through adopting above-mentioned technical scheme, utilize the thimble to play the effect of raising drainage channel delivery port height for drainage channel exhaust water can be close to the surface on infiltration road surface more, thereby makes the dust removal effect better.

Optionally, the method further includes:

the jacks are arranged in a plurality of ways, each jack is arranged on the waterproof base layer, and each jack is distributed below each first waterproof geotextile;

the lower end of each thimble is inserted into the jack.

By adopting the technical scheme, the lower end of the ejector pin can be inserted and fixed in the waterproof base layer by utilizing the matching between the jack and the ejector pin, so that the fixed installation effect of the ejector pin is ensured.

Optionally, the infiltration road surface includes:

the first water seepage concrete layer is formed on the waterproof base layer in a guniting mode;

and the second water seepage concrete layer is formed on the first water seepage concrete layer in a pouring mode.

Through adopting above-mentioned technical scheme, utilize first infiltration concrete can play the effect of tentatively fixing first waterproof geotechnological cloth, the waterproof geotechnological cloth of second and thimble, avoid one shot forming's infiltration road surface to collapse first reinforcing bar net and the reinforcing bar net of second, utilize second infiltration concrete layer can play the effect of ensureing infiltration road surface thickness.

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

a drainage channel can be formed on the water seepage road surface, and upward water flow can be generated below the water seepage road surface by utilizing the drainage channel, so that the effect of flushing and removing dust covering the surface of the water seepage road surface is achieved;

the cooling device can be used for cooling the daily municipal roads, so that the municipal roads can be rapidly cooled in a high-temperature environment, the use safety of the municipal roads is ensured, and the cooling cost is reduced;

a plurality of shallow water accumulation grooves can be formed on the surface of the waterproof base layer, and the water accumulation grooves can prevent water in the seepage path from quickly losing, so that the cooling effect is better;

when being in rainy season, can reverse the rainwater in the extraction infiltration road surface, directly extract this part rainwater and store in water storage system for the rainwater discharges and retrieves.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic illustration of a position of a rainwater recycling system according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a rainwater recycling system according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a backwash assembly according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of a water supply assembly of an embodiment of the present application;

fig. 6 is a schematic view of arrangement of ribs according to an embodiment of the present application.

Reference numerals: 1. a pedestrian road; 11. a waterproof base layer; 111. a jack; 112. rib corrugation; 113. a water storage tank; 12. water seepage road surface; 121. a first layer of water-permeable concrete; 122. a second water-permeable concrete layer; 2. a rainwater recycling system; 21. a water supply assembly; 211. a first waterproof geotextile; 212. a thimble; 213. a first reinforcing mesh reinforcement; 214. a first waterproof concrete seal; 215. a through hole; 22. a backwash assembly; 221. a second waterproof geotextile; 222. a second reinforcing mesh reinforcement; 223. a second waterproof concrete seal; 23. a water accumulation tank.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses sponge city municipal rainwater utilizes system. Referring to fig. 1 and 2, the rainwater utilization system comprises a pedestrian road 1, a water storage system (not shown in the figures) and a rainwater recycling system 2, wherein the pedestrian road 1 is used for pedestrian activities, the water storage system is used for recovering and storing rainwater, and the rainwater recycling system 2 is used for recycling rainwater in the water storage system onto the pedestrian road 1.

Referring to fig. 1 and 2, a pedestrian road 1 comprises a waterproof base layer 11 and a water seepage road surface 12 which are sequentially arranged from bottom to top, and a rainwater reuse system 2 is arranged between the waterproof base layer 11 and the water seepage road surface 12; wherein, infiltration road surface 12 includes first infiltration concrete layer 121 and second infiltration concrete layer 122 from supreme down in proper order, first infiltration concrete layer 121 adopts the mode shaping of whitewashing on waterproof basic unit 11, the first infiltration concrete layer 121 thickness that adopts the mode shaping of whitewashing is between 1.2-.2.7cm, thickness is thinner, the setting shaping is fast, can be fast with rainwater recycling system 2 design on waterproof basic unit 11, second infiltration concrete layer 122 adopts the mode shaping of pouring on first infiltration concrete layer 121, utilize second infiltration concrete layer 122 to ensure the thickness of infiltration road surface 12, make infiltration road surface 12 can keep higher intensity.

Referring to fig. 3, the rainwater recycling system 2 includes a water supply assembly 21 and a backwashing assembly 22; wherein, the water supply components 21 are provided with two groups, the two groups of water supply components 21 are respectively arranged on two long sides of the waterproof base layer 11, and one end of each of the two groups of water supply components 21 is communicated with the water storage system; wherein, back flush subassembly 22 is provided with a plurality of groups, and each back flush subassembly 22 all arranges along waterproof basic unit 11's length direction, and the both ends of each back flush subassembly 22 are all linked together with the one side that two sets of water supply unit 21 set up in opposite directions respectively.

Wherein, rainwater recycling system 2 still includes a plurality of ponding grooves 23, and each ponding groove 23 all arranges along the length direction of waterproof basic unit 11 and sets up, and each ponding groove 23 is enclosed by two sets of back flush module 22 and two sets of water supply assembly 21 of arbitrary adjacent setting and closes and form. When the rainwater permeates to the waterproof base layer 11 through the water seepage road surface 12, the rainwater can firstly flow to the rainwater collecting groove 23, part of the rainwater can be stored by the rainwater collecting groove 23 in a small amount, when the rainwater is more, the excessive rainwater can submerge the rainwater collecting groove 23, and the effect of discharging the rainwater collecting groove 23 is finally achieved.

Referring to fig. 4 and 5, the backwashing assembly 22 includes a first waterproof geotextile 211, a plurality of thimbles 212, a first reinforcing mesh reinforcement 213, and a first waterproof concrete seal 214, the first waterproof geotextile 211 is laid on the waterproof base layer 11, the thimbles 212 are provided with a plurality of thimbles 212, the lower end of each thimble 212 is inserted into the waterproof base layer 11, the upper end of each thimble 212 penetrates through the first waterproof geotextile 211, the first reinforcing mesh reinforcement 213 is laid on the first waterproof geotextile 211, the first waterproof concrete seal 214 is provided with two channels, and the two channels of the first waterproof concrete seal 214 are respectively disposed on two long sides of the first waterproof geotextile 211.

The waterproof base layer 11 is provided with a plurality of insertion holes 111, the insertion holes 111 are formed in the waterproof base layer 11 in a solidification mode through insertion of insertion rods, after the waterproof base layer 11 is formed in a solidification mode, the insertion rods are pulled out to form the insertion holes 111, the first waterproof geotextile 211 is provided with a plurality of through holes 215, the upper end of each thimble 212 penetrates through the first waterproof geotextile 211 through the through holes 215, a water outlet channel is formed in each thimble 212, and the upper end and the lower end of each water outlet channel are respectively communicated with the water seepage pavement 12 and the drainage channel; wherein, the outer wall of the thimble 212 is connected with the through hole 215 of the first waterproof geotextile 211 in a sealing way by using a waterproof coating.

When the drainage assembly needs to be installed, first, the first waterproof geotextile 211 is laid on the waterproof base layer 11, then the first reinforcing mesh reinforcement 213 is laid on the first waterproof geotextile 211, at this time, two long side sides of the first reinforcing mesh reinforcement 213 respectively extend out of two long side sides of the first waterproof geotextile 211, then the part of the first reinforcing mesh reinforcement 213 extending out of the first waterproof geotextile 211 is fixed with the waterproof base layer 11 into a whole by gluing or welding with glue, and finally, a first waterproof concrete seal 214 is laid on each of the two long side sides of the first reinforcing mesh reinforcement 213, the first waterproof concrete seal 214 is formed by solidification of waterproof concrete, and the two long side sides of the first waterproof concrete seal 214 respectively cover the first waterproof geotextile 211 and the waterproof base layer 11; after the drainage assembly is installed, a drainage channel is formed between the first waterproof geotextile 211 and the waterproof base layer 11.

Referring to fig. 5, the water supply module 21 includes a second waterproof geotextile 221, a second reinforcing mesh reinforcement 222, and a second waterproof concrete seal 223, the second waterproof geotextile 221 is laid on the waterproof base layer 11, the end of the first waterproof geotextile 211 is covered on the second waterproof geotextile 221, the second reinforcing mesh reinforcement 222 is covered on the second waterproof geotextile 221, and both long sides of the second reinforcing mesh reinforcement 222 extend out of both long sides of the second waterproof geotextile 221, respectively, the second waterproof concrete seal 223 is provided with two sides, and both sides of the second waterproof concrete seal 223 are laid on both long sides of the second waterproof geotextile 221, respectively.

When the water supply assembly 21 needs to be installed, firstly, the second waterproof geotextile 221 is laid on the waterproof base layer 11, then the second reinforcing steel bar mesh 222 is laid on the second waterproof geotextile 221, the part of the second reinforcing steel bar mesh 222 extending out of the second waterproof geotextile 221 is fixed with the waterproof base layer 11 into a whole by using a glue adhesion or welding mode, and finally, a second waterproof concrete seal 223 is laid on both long side sides of the second reinforcing steel bar mesh 222, the second waterproof concrete seal 223 is formed by solidifying and molding waterproof concrete, and both long side sides of the second waterproof concrete seal 223 can respectively cover the second waterproof geotextile 221 and the waterproof base layer 11; wherein, the second waterproof concrete strip of paper used for sealing 223 that is close to drainage subassembly still can cover the tip of first waterproof geotechnological cloth 211 to reach the effect of the first waterproof geotechnological cloth 211 of sealing connection and the waterproof geotechnological cloth of second, after the installation of water supply subassembly 21 was accomplished, can form one water supply channel between second waterproof geotechnological cloth 221 and the waterproof basic unit 11, water supply channel can be linked together with water storage system and drainage channel.

Referring to fig. 6, a plurality of stupefied ribs 112 are provided on the waterproof base layer 11, each stupefied rib 112 is distributed below each of the first waterproof geotextile 211 and the second waterproof geotextile, through the cooperation between the stupefied rib 112 and the waterproof base layer 11, a rugged topography can be formed below the first waterproof geotextile 211 or the second waterproof geotextile 221, thereby playing an effect of increasing the size of the gap between the first waterproof geotextile 211 or the second waterproof geotextile 221 and the waterproof base layer 11, so that the flowing effect of rainwater is better, and each stupefied rib 112 can also play an effect of intercepting and filtering dust many times, so that the influence of dust on the drainage channel and the water supply channel is smaller.

Wherein, be provided with a plurality of channels of reservoir 113 that the cross section personally submits isosceles trapezoid shape and sets up on waterproof basic unit 11, two adjacent channels of reservoir 113 that set up enclose and close and form stupefied muscle 112.

The implementation principle of the sponge city municipal rainwater utilization system in the embodiment of the application is as follows:

when the infiltration road surface 12 needs to be cooled down or the dust is removed by reverse flushing, water in the water supply channel only needs to be supplied to the water supply channel through the water storage system, the water in the water supply channel can flow to the drainage channel, finally, the water in the drainage channel can be discharged through the ejector pins 212, in the system, the water can be upwards permeated and discharged only by ensuring that the water pressure in the drainage channel is large enough, and finally the effect of removing the dust by reverse flushing is achieved.

When the rainwater draining device is in a rainy season, the water storage system can be controlled to pump water, negative pressure can be formed in the water supply channel and the water draining channel at the moment, and therefore rainwater permeating into the water draining channel can be absorbed by the ejector pins 212 and finally achieves the effect of rapid water draining through the water draining channel and the water supply channel.

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.