CN211227933U - Sponge urban road structure - Google Patents
Sponge urban road structure Download PDFInfo
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- CN211227933U CN211227933U CN201921475261.3U CN201921475261U CN211227933U CN 211227933 U CN211227933 U CN 211227933U CN 201921475261 U CN201921475261 U CN 201921475261U CN 211227933 U CN211227933 U CN 211227933U
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Abstract
The utility model discloses a sponge urban road structure, include the road body and locate the side ditch of road body both sides, the road body includes the pavement layer from top to bottom, absorbs water layer and road body layer, the partial region of layer side that absorbs water and the road body layer with all regions between the layer that absorbs water are equipped with the waterproof layer, the side ditch with the layer that absorbs water is linked together through the region of the layer side of absorbing water that does not set up the waterproof layer. The utility model has the advantages of the utility model discloses can be under the very big condition of rainfall, absorb the rainwater through the water storage function of side ditch and road self, avoid road surface ponding, reduce the traffic accident rate, simultaneously in fine day, under the insolate burning sun, the rainwater evaporation on layer that absorbs water can also avoid the heat island phenomenon to take away the heat of road.
Description
Technical Field
The utility model belongs to the technical field of highway engineering construction, concretely relates to sponge urban road structure.
Background
General road structure only considers the water permeability among the prior art, so surface course road surface adopts waterproof asphalt, and every rainy day will pile up a lot of rainwater on the road, though rainwater above the road can slowly converge into the escape canal of road both sides, but the entry of general escape canal is less, and the water storage capacity of escape canal is also not big, so when heavy rain or even torrential rain, the drainage ability is not enough will form surface ponding, leads to the road skidding, and traffic accident's emergence probability will uprise.
Therefore, how to provide a sponge urban road structure, which can rapidly absorb the redundant rainwater on the road surface, reduce the occurrence probability of traffic accidents and simultaneously alleviate the heat island effect of the city is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a sponge urban road structure for solve the problem among the prior art, include:
in an embodiment, a sponge urban road structure is provided, include the road body and locate the side ditch of road body both sides, the road body includes the surface course from top to bottom, absorbs water layer and road body layer, absorb water the partial region of layer side and the road body layer with absorb water all regions between the layer and be equipped with the waterproof layer, the side ditch with it is linked together through the region of absorbing water the layer side and not setting up the waterproof layer.
In an embodiment, a sponge urban road structure is provided, include the road body and locate the side ditch of road body both sides, the road body is including the road surface layer that permeates water from top to bottom, absorbs water layer and road body layer, absorb water the layer side regional and the road body layer with absorb water the region between the layer and be equipped with the waterproof layer, the waterproof layer that absorbs water the layer side regional upwards extends to the road surface layer but its top is less than the side ditch top.
Compared with the prior art, the utility model discloses use the pavement layer and absorb water the layer, and set up the waterproof layer around the layer that absorbs water, can absorb the rainwater through the water storage function of side ditch and road self under the very big condition of rainfall, can avoid road surface ponding, reduce the traffic accident rate, simultaneously in fine day, under the insolate burning sun, the rainwater evaporation on layer that absorbs water takes away the heat of road, can also avoid the heat island phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a cross-sectional view of a sponge urban road structure in a first embodiment of the present application;
FIG. 2 is a cross-sectional view of a sponge urban road structure in a second embodiment of the present application;
FIG. 3 is a cross-sectional view of a sponge urban road structure in a third embodiment of the present application;
fig. 4 is a cross-sectional view of a sponge urban road structure in a fourth embodiment of the present application.
Detailed Description
The present invention will be more fully understood from the following detailed description, which should be read in conjunction with the accompanying drawings. Detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed embodiment.
The utility model provides a sponge urban road structure: including the road body and locate the side ditch of road body both sides, the road body includes the road surface layer from top to bottom, absorbs water layer and road body layer, absorb water the partial region of layer side and the road body layer with absorb water all regions between the layer and be equipped with the waterproof layer, the side ditch with it is linked together through the region of the layer side of absorbing water that does not set up the water proof layer to absorb water the layer.
Furthermore, the water absorption layer is a broken stone water absorption layer paved by waste glass regeneration materials Supersol.
In the technical scheme, the water absorption of the Supersol water absorption layer enables rainwater to quickly permeate into the lower road layer, the rainwater cannot be accumulated on the road surface to cause wet and slippery road surface, meanwhile, the rainwater can be stored in the Supersol water absorption layer due to the design of the waterproof layer, the influence on a road body due to continuous infiltration cannot be caused, the rainwater stored in the Supersol water absorption layer can be preferentially evaporated on a sunny day and under the condition of exposure to strong sunlight, the heat on the road surface is taken away, and the urban heat island effect is relieved.
Further, the water absorption layer comprises a first water absorption layer and a second water absorption layer, and the Supersol crushed stone particles of the first water absorption layer are smaller than the Supersol crushed stone particles of the second water absorption layer.
In the above technical scheme, the supersanol crushed stone particles are the existing materials, the supersanol is prepared by crushing, grinding and vibrating waste glass, and then adding an additive into the crushed waste glass, and the supersanol crushed stone particles are fired, have multiple effects of light weight, good water absorption and drainage, good air permeability, deodorization, bacterial breeding prevention and the like, and the specific gravity, the water absorption and the size of the crushed waste glass particles can be adjusted according to different requirements, which is not described herein.
Further, the water absorption layer comprises a first water absorption layer, a second water absorption layer and a road bed layer, the thickness of the first water absorption layer is 5-20 cm, the thickness of the second water absorption layer is 10-50 cm, the thickness of the road bed layer is 20-100 cm, and Supersol broken stone particles in the first water absorption layer, the second water absorption layer and the road bed layer are sequentially increased.
In the technical scheme, the road bed layer is paved into the water absorption layer, so that the water storage capacity of the road can be increased, and the dryness of the road surface in rainy days is ensured.
Furthermore, the waterproof layer includes locate absorb water the layer with the first waterproof layer of road body layer between and locate absorb water the layer side second waterproof layer, the side ditch bottom is less than the top of second waterproof layer.
In the technical scheme, the bottom of the side ditch is lower than the top of the second waterproof layer, so that rainwater can pass through the road body along the top of the waterproof layer when the side ditch cannot be discharged in time, and the phenomenon of water accumulation on the surface of the road is further avoided.
Furthermore, the first waterproof layer is connected with the bottom of the second waterproof layer, so that water storage is facilitated.
Furthermore, a third waterproof layer is arranged between the road surface layer and the water absorption layer.
Furthermore, the third waterproof layer and the top of the second waterproof layer are arranged at intervals.
In the technical scheme, the waterproof layer between the road surface layer and the Supersol water absorption layer can enable rainwater on the road surface to preferentially enter the side ditches on two sides of the road and be discharged through the drainage capacity of the side ditches, after the water amount in the side ditches reaches a certain degree, the rainwater in the side ditches passes through the water absorption Supersol water absorption layer through the drainage holes, the side ditches are helped to relieve the pressure of the rainwater, the dryness of the road surface is jointly maintained, and meanwhile, the third waterproof layer and the top of the second waterproof layer are arranged at intervals to enable the rainwater in the side ditches to smoothly flow into the water absorption layer for storing water.
Further, the pavement layer is a common waterproof asphalt pavement layer.
Furthermore, the pavement layer can also be a permeable asphalt pavement layer.
In the technical scheme in the market, the water permeability of the permeable asphalt pavement layer enables rainwater to quickly permeate into the lower layer of the road, the rainwater cannot be accumulated on the surface of the road to cause the surface of the road to be wet and slippery, the rainwater stored in the Supersol layer can be preferentially evaporated on a sunny day and under the condition of exposure to strong sunlight, meanwhile, the heat on the surface of the road is taken away, and the heat island effect of a city is relieved.
The utility model provides a sponge urban road structure: including the road body and locate the side ditch of road body both sides, the road body from top to bottom is including the road surface layer that permeates water, absorbs water layer and road body layer, absorb water the layer side regional and the road body layer with the region that absorbs water between the layer is equipped with the waterproof layer, the waterproof layer that absorbs water the layer side regional upwards extends to the road surface layer that permeates water but its top is less than the side ditch top.
Further, the pavement layer that permeates water is the water permeability pitch pavement layer, and thickness is 6 ~ 25cm, the pavement layer that permeates water is including the pavement surface layer and the road surface basic unit that set gradually, the waterproof layer of layer side that absorbs water upwards extends to road surface basic unit.
In the technical scheme, the permeable pavement layer ensures that rainwater can quickly permeate into the lower layer of the road, cannot be accumulated on the surface of the road to cause the wet and slippery surface of the road, can preferentially evaporate the rainwater stored in the Supersol layer on sunny days and under the condition of strong sun exposure, takes away the heat on the surface of the road, and relieves the heat island effect of a city.
The waterproof layer material comprises: waterproof asphalt, glue, plastics and tar.
Example 1:
referring to fig. 1, a sponge urban road structure is provided, which includes a road body 1 and side ditches 2 disposed at two sides of the road body 1, wherein the road structure 1 includes, from top to bottom, a pavement layer 11, a water absorbing layer 12, a pavement layer 13, and a waterproof layer 14.
The pavement layer 11 is divided into a pavement surface layer 111 and a pavement base layer 112, the pavement layer 11 is formed by laying general waterproof asphalt, the thickness of the pavement layer 11 is 6-25 cm, and the water resistance of the general asphalt can enable accumulated water on the pavement surface to preferentially permeate into the side ditches 2 on the two sides.
The water absorption layer 12 comprises a first water absorption layer 121, a second water absorption layer 122 and a road bed layer 123 which are sequentially arranged, the thickness of the first water absorption layer 121 is 5-20 cm, the thickness of the second water absorption layer 122 is 10-50 cm, the thickness of the road bed layer 123 is 20-100 cm, the water absorption layer 12 is a broken stone water absorption layer which is paved by waste glass regeneration materials Supersol, broken stone particles of the broken stone water absorption layer are sequentially increased from top to bottom, the Supersol materials in the water absorption layer 12 are made of waste glass and belong to the existing materials, the materials are currently applied in Japan, and the water absorption of the Supersol materials is controllable and has considerable hardness.
The water-absorbing layer 12 is provided with a water-proof layer 14 in a side part region thereof and in the entire region between the road body layer 13 and the water-absorbing layer 12, and the side grooves 2 are communicated with the water-absorbing layer 12 through a region of the side surface of the water-absorbing layer 12 not provided with the water-proof layer 14.
The waterproof layer 14 comprises a first waterproof layer 141 arranged between the water absorbing layer 12 and the road body layer 13 and a second waterproof layer 142 arranged on the side face of the water absorbing layer 12, the bottom of the lateral ditch 2 is lower than the top of the second waterproof layer 142, the first waterproof layer 141 is connected with the bottom of the second waterproof layer 142, water storage is facilitated, rainwater can be accumulated in the water absorbing layer 12 due to the arrangement of the waterproof layers, when the rainwater is exposed to the sun in sunny days, the water rate in the water absorbing layer 12 evaporates first, heat on the road surface is taken away, and city temperature is lowered.
A third waterproof layer 143 can be further arranged between the pavement layer 11 and the water absorption layer 12, the third waterproof layer 143 is arranged at an interval with the top of the second waterproof layer 142, and the interval is used for discharging redundant rainwater in the side ditches into the water absorption layer 12.
The third water proofing layer 143 between pavement layer 11 and the layer 12 that absorbs water is the same with pavement layer 11, can make the rainwater on road surface preferentially get into in the side ditch 2 of road both sides, discharge through the drainage ability of side ditch 2, after the water yield in the side ditch 2 reaches the certain degree, the rainwater passes into the layer 12 that absorbs water through the rainwater in the noncontiguous department at third waterproof layer 143 and second waterproof layer 142 top with the side ditch in, help side ditch 2 to alleviate the pressure of rainwater, maintain road surface's drying jointly.
When the pavement layer 11 is formed by paving common waterproof asphalt, the waterproof layer 143 may not be arranged between the pavement layer 11 and the water absorption layer 12 because the pavement layer has a certain waterproof capability.
When the third water-proofing layer 143 is provided between the road surface layer 11 and the water-absorbing layer 12, the road surface layer 11 may be a water-permeable road surface layer formed by laying water-permeable asphalt. Water-permeable asphalt is an existing material, and has been used on highways in japan so far.
Example 2:
referring to fig. 2, another sponge urban road structure is provided, which includes a road body 1 and side ditches 2 disposed at two sides of the road body 1, wherein the road structure 1 includes, from top to bottom, a road surface layer 11, a water absorbing layer 12, a road bed layer 15, a road body layer 13, and a waterproof layer 14.
The pavement layer 11 is divided into a pavement surface layer 111 and a pavement base layer 112, the pavement layer 11 is formed by laying general waterproof asphalt, the thickness of the pavement layer 11 is 6-25 cm, and the water resistance of the general asphalt can enable accumulated water on the pavement surface to preferentially permeate into the side ditches 2 on the two sides.
The water absorption layer 12 comprises a first water absorption layer 121 and a second water absorption layer 122 which are sequentially arranged, the thickness of the first water absorption layer 121 is 5-20 cm, the thickness of the second water absorption layer 122 is 10-50 cm, the water absorption layer 12 is a broken stone water absorption layer which is formed by paving super glass regeneration materials, broken stone particles of the broken stone water absorption layer are sequentially increased from top to bottom, the super materials in the water absorption layer 12 are made of waste glass, the broken stone water absorption layer belongs to the existing materials, the materials are applied in Japan at present, and the water absorption of the super materials is controllable, and the hardness is considerable.
The thickness of the roadbed layer 15 is 20-100 cm.
The side part area of the water absorption layer 12 and the whole area between the roadbed layer 15 and the water absorption layer 12 are provided with a waterproof layer 14, and the side ditch 2 is communicated with the water absorption layer 12 through the area without the waterproof layer 14 on the side surface of the water absorption layer 12.
The waterproof layer 14 comprises a first waterproof layer 141 arranged between the water absorbing layer 12 and the roadbed layer 15 and a second waterproof layer 142 arranged on the side face of the water absorbing layer 12, the bottom of the lateral ditch 2 is lower than the top of the second waterproof layer 142, the first waterproof layer 141 is connected with the bottom of the second waterproof layer 142, water storage is facilitated, rainwater can be accumulated in the water absorbing layer 12 due to the arrangement of the waterproof layers, when the rainwater is exposed to the sun in sunny days, the water rate in the water absorbing layer 12 evaporates first, heat on the road surface is taken away, and city temperature is lowered.
A third waterproof layer 143 can be further arranged between the pavement layer 11 and the water absorption layer 12, the third waterproof layer 143 is arranged at an interval with the top of the second waterproof layer 142, and the interval is used for discharging redundant rainwater in the side ditches into the water absorption layer 12.
The third water proofing layer 143 between pavement layer 11 and the layer 12 that absorbs water is the same with pavement layer 11, can make the rainwater on road surface preferentially get into in the side ditch 2 of road both sides, discharge through the drainage ability of side ditch 2, after the water yield in the side ditch 2 reaches the certain degree, the rainwater passes into the layer 12 that absorbs water through the rainwater in the noncontiguous department at third waterproof layer 143 and second waterproof layer 142 top with the side ditch in, help side ditch 2 to alleviate the pressure of rainwater, maintain road surface's drying jointly.
When the pavement layer 11 is formed by paving common waterproof asphalt, the waterproof layer 143 may not be arranged between the pavement layer 11 and the water absorption layer 12 because the pavement layer has a certain waterproof capability.
When the third water-proofing layer 143 is provided between the road surface layer 11 and the water-absorbing layer 12, the road surface layer 11 may be a water-permeable road surface layer formed by laying water-permeable asphalt. Water-permeable asphalt is an existing material, and has been used on highways in japan so far.
Example 3:
referring to fig. 3, a sponge urban road structure is provided, which includes a road body 1 and side ditches 2 disposed at two sides of the road body 1, wherein the road structure 1 includes, from top to bottom, a road surface layer 11, a water absorbing layer 12, a road body layer 13, and a waterproof layer 14.
The water absorption layer 12 comprises a first water absorption layer 121, a second water absorption layer 122 and a road bed layer 123 which are sequentially arranged, the thickness of the first water absorption layer 121 is 5-20 cm, the thickness of the second water absorption layer 122 is 10-50 cm, the thickness of the road bed layer 123 is 20-100 cm, the water absorption layer 12 is a broken stone water absorption layer which is paved by waste glass regeneration materials Supersol, broken stone particles of the broken stone water absorption layer are sequentially increased from top to bottom, the Supersol materials in the water absorption layer 12 are made of waste glass and belong to the existing materials, the materials are currently applied in Japan, and the water absorption of the Supersol materials is controllable and has considerable hardness.
The waterproof layer 14 comprises a first waterproof layer 141 arranged between the water absorbing layer 12 and the road body layer 13 and a second waterproof layer 142 arranged on the side face of the water absorbing layer 12, the bottom of the side ditch 2 is lower than the top of the second waterproof layer 142, the top of the second waterproof layer 142 is lower than the top of the side ditch 2, and the first waterproof layer 141 is connected with the bottom of the second waterproof layer 142 so as to be convenient for water storage.
In the technical scheme, the water-permeable pavement layer and the water absorption of the Supersol water absorption layer enable rainwater to quickly permeate into the lower road layer, the water cannot be accumulated on the road surface to cause the road surface to be wet and slippery, meanwhile, the design of the waterproof layer enables the rainwater to be stored in the Supersol water absorption layer, the influence on a road body due to continuous infiltration cannot be caused, the rainwater stored in the Supersol water absorption layer can be preferentially evaporated in sunny days under the condition of strong sun exposure, the heat of the road surface is taken away, and the urban heat island effect is relieved.
Example 4:
referring to fig. 4, a sponge urban road structure is provided, which includes a road body 1 and side ditches 2 disposed at two sides of the road body 1, wherein the road structure 1 includes, from top to bottom, a road surface layer 11, a water absorbing layer 12, a road bed layer 15, a road body layer 13, and a waterproof layer 14.
The water absorption layer 12 comprises a first water absorption layer 121 and a second water absorption layer 122 which are sequentially arranged, the thickness of the first water absorption layer 121 is 5-20 cm, the thickness of the second water absorption layer 122 is 10-50 cm, the water absorption layer 12 is a broken stone water absorption layer which is formed by paving super glass regeneration materials, broken stone particles of the broken stone water absorption layer are sequentially increased from top to bottom, the super glass materials in the water absorption layer 12 are made of waste glass, the broken stone water absorption layer belongs to the existing materials, the materials are applied in Japan at present, and the water absorption of the super materials is controllable, and the hardness is considerable.
The thickness of the road bed layer 123 is 20-100 cm.
The waterproof layer 14 comprises a first waterproof layer 141 arranged between the water absorbing layer 12 and the road bed layer 15 and a second waterproof layer 142 arranged on the side face of the water absorbing layer 12, the bottom of the side ditch 2 is lower than the top of the second waterproof layer 142, the top of the second waterproof layer 142 is lower than the top of the side ditch 2, and the first waterproof layer 141 is connected with the bottom of the second waterproof layer 142 so as to be convenient for water storage.
In the technical scheme, the water-permeable pavement layer and the water absorption of the Supersol water absorption layer enable rainwater to quickly permeate into the lower road layer, the water cannot be accumulated on the road surface to cause the road surface to be wet and slippery, meanwhile, the design of the waterproof layer enables the rainwater to be stored in the Supersol water absorption layer, the influence on a road body due to continuous infiltration cannot be caused, the rainwater stored in the Supersol water absorption layer can be preferentially evaporated in sunny days under the condition of strong sun exposure, the heat of the road surface is taken away, and the urban heat island effect is relieved.
The utility model has the advantages that:
the waterproof layer is arranged around the water absorption layer, rainwater can be absorbed through the side ditches and the water storage function of the road under the condition of large rainfall, water accumulated on the surface of the road can be avoided, the traffic accident rate is reduced, meanwhile, in a sunny day and under the insolation of burning sun, the rainwater on the water absorption layer evaporates, the heat of the road is taken away, and the urban heat island phenomenon can be avoided.
When heavy rain falls and the rain quantity is large, and the side ditches cannot be treated, the rain water can permeate the pavement layer and enter the Supersol water absorption layer under the road, the water accumulation on the surface of the road is avoided, and the Supersol material can control the water storage capacity of the road by controlling the hardness, the water absorption rate, the size, the specific gravity and the like.
Many materials required by sponge cities need special tools and the like, while Supersol materials do not need complex processes, and the construction period of road manufacturing can be shortened.
The Supersol material can be used for roads in sponge cities, and can also be used for paving roofs, planting plants at the root, or underground cities and the like.
The materials used in many sponge cities are plastic containers which are only changed into wastes to pollute roads, and Supersol does not contain harmful substances and only changes into soil.
Many projects are completed and have effects, and the construction of a part of the Supersol construction method also has a very effect.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
Claims (10)
1. The utility model provides a sponge urban road structure which characterized in that: including the road body and locate the side ditch of road body both sides, the road body includes the road surface layer from top to bottom, absorbs water layer and road body layer, absorb water the partial region of layer side and the road body layer with absorb water all regions between the layer and be equipped with the waterproof layer, the side ditch with it is linked together through the region of the layer side of absorbing water that does not set up the water proof layer to absorb water the layer.
2. The sponge urban road structure according to claim 1, wherein the water-absorbing layer is a gravel water-absorbing layer laid with recycled waste glass Supersol.
3. The sponge urban road structure according to claim 2, wherein the water-absorbing layer comprises a first water-absorbing layer and a second water-absorbing layer, the Supersol macadam particles of the first water-absorbing layer being smaller than the Supersol macadam particles of the second water-absorbing layer.
4. The sponge urban road structure according to claim 2, wherein the water absorption layer comprises a first water absorption layer, a second water absorption layer and a road bed layer, the thickness of the first water absorption layer is 5-20 cm, the thickness of the second water absorption layer is 10-50 cm, the thickness of the road bed layer is 20-100 cm, and Supersol crushed stone particles in the first water absorption layer, the second water absorption layer and the road bed layer are increased in sequence.
5. The sponge urban road structure according to claim 1, wherein the waterproof layer comprises a first waterproof layer disposed between the water absorbing layer and the road layer and a second waterproof layer disposed on the side of the water absorbing layer, and the bottom of the side ditch is lower than the top of the second waterproof layer.
6. The sponge urban road structure according to claim 5, wherein said first waterproof layer is connected to the bottom of said second waterproof layer.
7. The sponge urban road structure of claim 5, wherein a third waterproof layer is further disposed between the road surface layer and the water absorption layer, and the third waterproof layer is spaced from the top of the second waterproof layer.
8. The sponge urban road structure according to claim 1, wherein the pavement layer is a plain waterproof asphalt pavement layer.
9. The utility model provides a sponge urban road structure which characterized in that: including the road body and locate the side ditch of road body both sides, the road body from top to bottom is including the road surface layer that permeates water, absorbs water layer and road body layer, absorb water the layer side regional and the road body layer with the region that absorbs water between the layer is equipped with the waterproof layer, the waterproof layer that absorbs water the layer side regional upwards extends to the road surface layer that permeates water but its top is less than the side ditch top.
10. The sponge urban road structure according to claim 9, wherein the water-permeable pavement layer is a water-permeable asphalt pavement layer with a thickness of 6-25 cm, the water-permeable pavement layer comprises a pavement surface layer and a pavement base layer which are arranged in sequence, and the waterproof layer on the side of the water-absorbing layer extends upwards to the pavement base layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475261.3U CN211227933U (en) | 2019-09-05 | 2019-09-05 | Sponge urban road structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921475261.3U CN211227933U (en) | 2019-09-05 | 2019-09-05 | Sponge urban road structure |
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| Publication Number | Publication Date |
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| CN211227933U true CN211227933U (en) | 2020-08-11 |
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| CN201921475261.3U Expired - Fee Related CN211227933U (en) | 2019-09-05 | 2019-09-05 | Sponge urban road structure |
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|---|---|
| CN (1) | CN211227933U (en) |
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- 2019-09-05 CN CN201921475261.3U patent/CN211227933U/en not_active Expired - Fee Related
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Granted publication date: 20200811 |