CN108396613A - Discharge structure and porous pavement drainage system - Google Patents
Discharge structure and porous pavement drainage system Download PDFInfo
- Publication number
- CN108396613A CN108396613A CN201810288093.0A CN201810288093A CN108396613A CN 108396613 A CN108396613 A CN 108396613A CN 201810288093 A CN201810288093 A CN 201810288093A CN 108396613 A CN108396613 A CN 108396613A
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- Prior art keywords
- drainage
- drain outlet
- discharge structure
- porous pavement
- lattice
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000004576 sand Substances 0.000 claims abstract description 32
- 239000004567 concrete Substances 0.000 claims description 18
- 238000001914 filtration Methods 0.000 abstract description 21
- 238000003860 storage Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 18
- 238000010276 construction Methods 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000011380 pervious concrete Substances 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000004035 construction material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to discharge structures and porous pavement drainage system.The discharge structure includes:Discharge conduit, lattice and interconnecting part in discharge conduit, discharge conduit is divided into the first drainage and the second drainage by lattice, first drainage has drainage inlet and the first drain outlet, second drainage has the second drain outlet, the filter layer for covering the first drain outlet is provided in the first drainage lower part, interconnecting part is set to above lattice and is connected to the first drainage top and the second drainage.The supercrust and discharge structure that the porous pavement drainage system includes sand base, is layed in above sand base, discharge structure pass through supercrust and extend in sand base, and drainage inlet is used to accept the rainwater of supercrust, and the second drain outlet is connected with pipeline.Discharge structure has filtering, deposits water storage function, and porous pavement drainage system can ensure the filtering of porous pavement and deposit water storage function using after the discharge structure.
Description
Technical field
The present invention relates to field of engineering technology, more particularly to discharge structure and porous pavement drainage system.
Background technology
Sponge urban construction has been enter into the all-sided implementation, and the porous pavement material used at present is mainly with permeable coagulation
Based on soil, pervious asphalt, water-permeable brick etc..But the obstruction of these seepy material holes and its maintenance and recovery etc. research are still compared
Compared with shortage so that still lack ripe ginseng for the service life of seepy material, construction and maintenance cost, environment influence etc.
Examine foundation.Therefore, when the water permeable ability of porous pavement material declines, how to ensure the filtering of porous pavement, deposit water storage function
Become the key of sponge urban construction.
Invention content
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of discharge structure and porous pavement drainage system, the draining
Structure has filtering, deposits water storage function, while conserving simply, after the porous pavement drainage system applies the discharge structure,
Even if the water permeable ability of porous pavement declines, filtering and the storage water work(of porous pavement can also be ensured by the discharge structure
Energy.
A kind of discharge structure, including:Discharge conduit, lattice and interconnecting part in the discharge conduit, it is described
The discharge conduit is divided into the first drainage and the second drainage by lattice, and first drainage has draining
Entrance and the first drain outlet, second drainage has the second drain outlet, in first drainage lower part
It is provided with the filter layer for covering first drain outlet, the interconnecting part is set to above the lattice and connection described first
Drainage top and second drainage.
Above-mentioned discharge structure is divided into the first drainage and the second drainage, the first drainage be equipped with drainage inlet,
First drain outlet and filter layer are provided simultaneously with filtering, storage water and drain function.Second drainage drains out equipped with second
Mouthful but there is no drainage inlet, be connected to every and by interconnecting part by segregated portion with the first drainage, there is drain function.When
When water is less, flow enters the first drainage by drainage inlet, is arranged by the first drain outlet after filter layer filters
Go out;When water is larger, part flow enters the second drainage by the interconnecting part on lattice, passes through the second drain outlet
Discharge.
The height of the filter layer is not higher than the height of the lattice in one of the embodiments,.
Side, bottom surface an at least position for first drainage is equipped at least one institute in one of the embodiments,
State the first drain outlet.
The side and bottom surface of first drainage are equipped at least one first row in one of the embodiments,
Water out, be arranged first drain outlet of side height be not higher than the filter layer height.
It is covered with head cover above second drainage in one of the embodiments, the head cover is by described second
It closes the top of drainage.
The present invention also provides a kind of porous pavement drainage system, including sand base, the supercrust that is layed in above sand base
And discharge structure, the discharge structure pass through supercrust and extend in sand base, the drainage inlet is for accepting road surface
The rainwater of layer, second drain outlet are connected with pipeline.
In above-mentioned porous pavement drainage system, when rainwater flow is smaller, hole of the rainwater through supercrust penetrates into sand base,
Then it permeates the ground, realizes rainwater on-site elimination and utilization.When rainwater flow is excessive or the water permeable ability of porous pavement declines
When, rainwater flows into the first drainage by drainage inlet, is drained out through first after the filtering of the filter layer of the first drainage
Mouth penetrates into sand base.When rainwater flow is more than the drainability of the first drainage, extra rainwater can also pass through
Second drain outlet of two drainages is expelled directly out, and ensures filtering, storage water and the drain function of porous pavement.Meanwhile it arranging
Filter layer in water-bound can fixed time cleaning replace, be not necessarily to special installation, maintenance is simple, when the water permeable ability of porous pavement declines
When, without carrying out construction reformation again to porous pavement, extend the service life of porous pavement, reduce construction and safeguard at
This.
The top position of the lattice is higher than the top surface of the sand base in one of the embodiments,.
The supercrust includes armored concrete module in one of the embodiments, and the armored concrete module is horizontal
Latticed filling perforation is formed to longitudinally disposed, filling perforation module is filled in the latticed filling perforation, in the reinforced concrete clay model
It is equipped with road surface module above block and the filling perforation module.
The cross-sectional shape of the armored concrete module is trapezoidal in one of the embodiments,;And/or the net
The cross-sectional shape of trellis filling perforation is trapezoidal.
The sand base includes an at least protrusion in one of the embodiments, and Permeable blind pipe is equipped in the protrusion.
Description of the drawings
Fig. 1 is the sectional schematic diagram of discharge structure of the present invention;
Fig. 2 is the sectional schematic diagram of porous pavement drainage system of the present invention;
Fig. 3 is the floor map of porous pavement drainage system of the present invention;
Fig. 4 is the sectional schematic diagram of the supercrust of porous pavement drainage system of the present invention.
In figure:1, discharge structure;2, sand base;3, supercrust;4, Permeable blind pipe;5, pipeline;10, discharge conduit;11, divide
Every portion;12, interconnecting part;110, the first drainage;120, the second drainage;111, drainage inlet;112, it first drains out
Mouthful;113, filter layer;121, head cover;122, the second drain outlet;21, protrusion;31, armored concrete module;311, reinforcing bar;
32, filling perforation module;33, road surface module.
Specific implementation mode
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described in conjunction with attached drawing,
However, the present invention is not limited to these examples.
As shown in Figure 1, discharge structure 1 provided by the invention is provided simultaneously with filtering, storage water and drain function, side can be used as
Ditch, intercepting ditch or roadbed nearby, in cropland, the water that the low-lying place of premises collects guide into roadbed, cropland, house with
Outer ditch, it is widely applicable.
The discharge structure 1 includes discharge conduit 10, lattice 11 and interconnecting part in the discharge conduit 10
12.The discharge conduit 10 is divided into the first drainage 110 and the second drainage 120 by the lattice 11.Described
There is one drainage 110 drainage inlet 111 and the first drain outlet 112, second drainage 120 to have second row
Water out 122 is provided with the filter layer 113 for covering first drain outlet 112 in 110 lower part of the first drainage,
The interconnecting part 12 is set to 11 top of the lattice and is connected to 110 top of the first drainage and second catchment
Domain 120.When water is less, flow enters the first drainage 110 by drainage inlet 111, leads to after the filtering of filter layer 113
Cross the discharge of the first drain outlet 112;When water is larger, part flow enters second by the interconnecting part 12 of 11 top of lattice
Drainage 120 is discharged by the second drain outlet 122.
Preferably, the height of the filter layer 113 is not higher than the height of the lattice 11.Further, the filtering
The height of layer 113 is less than the height of the lattice 11.The filter layer 113, which is sand filter blanket etc., to be had filtering, purifies water
Material layer.The lattice 11 is the physical layer of metal material, plastic material or construction material manufacture, does not have pervious function.
The interconnecting part 12 is that filter screen etc. can be quickly through the material or equipment of flow, and certainly, the interconnecting part 12 can not also be set
Any facility is set, flow directly passes through from 12 space segment of interconnecting part.The lattice 11 and the interconnecting part 12 of top can
To be structure as a whole.When water flow is little, the first drainage can meet dewatering needs, at the same filter layer can filter,
It purifies water;When water flow is larger, extra water can be excluded by the second drainage, avoid waterlogging.
Preferably, side, bottom surface an at least position for first drainage 110 is equipped at least 1 first draining
Outlet 112.Further, the side and bottom surface of first drainage 110 are equipped at least 1 first drain outlet
112.Flow can be discharged after the filtering of filter layer 113 by the first drain outlet 112 of side or bottom surface.It is arranged in side
The height of first drain outlet 112 in face is not higher than the height of the filter layer 113.Further, it is arranged in side
The height of first drain outlet 112 is less than the height of the filter layer 113.Ensure that flow be discharged passes through filter layer
113 filterings, water quality are good.First drain outlet 112 is hole, and the shape of described hole can be round, oval, triangle
Any geometry such as shape, rectangle, pentagon, hexagon.
Preferably, second drainage, 120 top is covered with head cover 121, and the head cover 121 is drained described second
It closes the top in region 120.Head cover 121 can be made of metal material, plastic material or construction material, and head cover 121 will be described
After the top closing of second drainage 120, the top of the second drainage 120 does not have drainage inlet, flow to be both needed to pass through row
Water inlet 111 enters the first drainage 110.Second can just be entered after water flow is more than the load of the first drainage 110
Drainage 120 is discharged from the second drain outlet 122.The water inlet locations of the drainage inlet 111 are equipped with the grids such as rainwater grid
The material of structure, for sundries such as catching rubbish, in case rubbish blocks discharge structure, while convenient for concentrating cleaning rubbish.
Above-mentioned discharge structure has the following advantages:Discharge structure is divided into the first drainage and the second drainage, and first
Drainage is equipped with drainage inlet, the first drain outlet and filter layer, is provided simultaneously with filtering, storage water and drain function.Second
Drainage be equipped with the second drain outlet but no drainage inlet, with the first drainage by segregated portion every and pass through filtering
Fabric connectivity has drain function.When water is less, flow enters the first draining by the drainage inlet of the first drainage
Region is discharged after filter layer filters by the first drain outlet;When water is larger, part flow passes through the mistake on lattice
It filters structure and enters the second drainage, be discharged by the second drain outlet.
Fig. 2 to Fig. 4 is the porous pavement drainage system using discharge structure of the present invention, is used for the road construction in sponge city
In.The porous pavement drainage system includes sand base 2, is layed in the supercrust 3 and discharge structure 1 of 2 top of sand base, institute
Discharge structure 1 is stated across supercrust 3 and is extended in sand base 2, the drainage inlet 111 of first drainage 110 is used for
The rainwater of supercrust 3 is accepted, second drain outlet 122 is connected with pipeline 5.When rainwater flow is smaller, rainwater is through road surface
The hole of layer 3 penetrates into sand base 2, then permeates the ground, and realizes rainwater on-site elimination and utilization.When rainwater flow is excessive or saturating
When the water permeable ability in water route face declines, rainwater flows into the first drainage 110 by drainage inlet 111, through the first drainage
After 110 filtering of filter layer 113 sand base 2 is penetrated into through the first drain outlet 112.When amount of rainfall is more than the first drainage
When 110 drainability, extra rainwater can also be expelled directly out by the second drain outlet 122 of the second drainage 120,
Ensure filtering, storage water and the drain function of porous pavement.Meanwhile the filter layer 113 in discharge structure 1 can fixed time cleaning more
It changes, is not necessarily to special installation, maintenance is simple, when the water permeable ability of porous pavement declines, without being applied again to porous pavement
Work is transformed, and extends the service life of porous pavement, reduces construction and maintenance cost.
Preferably, the top position of the lattice 11 is higher than the top surface of the sand base 2.Ensure the first drainage
Rainwater in 110 as much as possible can be discharged into sand base 2, ensured that full water is all stored up in the gap in sand base 2, improved sand base
The stagnant water-holding capacity of layer 2.The material of the sand base 2 can be gravel sand, graded broken stone, thick Stone, block stone etc., be laid with
Meet highway layout requirement.
The supercrust 3 includes armored concrete module 31, and reinforcing bar 311 is wrapped in concrete.The armored concrete
The horizontal and vertical setting of module 31 forms latticed filling perforation, and filling perforation module 32 is filled in the latticed filling perforation.In the steel
The top of reinforced concrete module 31 and the filling perforation module 32 is equipped with road surface module 33.In view of when road surface load is larger,
3 structural thickness of supercrust of porous pavement is all thicker, and rain penetration enter underground after inevitably cause subgrade soil differential settlement,
Road is easily broken.However, adding reinforcing bar directly in porous pavement material, reinforcing bar will be rusted, and reinforcing bar and big gap
Bond stress between porous pavement material cannot be satisfied code requirement.And above-mentioned armored concrete module 31,32 and of filling perforation module
The overlapping harden structure that road surface module 33 forms can meet permeable requirement and provide reliable intensity and durability.
In porous pavement material, since there is pervious asphalt material compressibility still can after the through a long time use of road surface
There is sedimentation.Therefore, the material of the filling perforation module 32 is preferably pervious concrete, and the material of the road surface module 33 is preferred
For pervious concrete or pervious asphalt.When the material of road surface module 33 and filling perforation module 32 is pervious concrete, filling perforation
Module and road surface module pour simultaneously.
Preferably, the cross-sectional shape of the armored concrete module 31 is trapezoidal, is filled in filling out in latticed filling perforation
Hole module 32 is then inverted trapezoidal.Alternatively, the cross-sectional shape of the armored concrete module 31 is inverted trapezoidal, it is filled in latticed
Filling perforation module 32 in filling perforation is then trapezoidal.Closer, the shearing resistance energy for making armored concrete module 31 and filling perforation module 32 overlap
The globalities such as power are more preferable.By pressure caused by road surface module 33, the bearing capacity at interface can be improved.The reinforcing bar
Thickness, spacing of concrete modular 31 etc. can be embodied by different engineerings.
The sand base 2 includes an at least protrusion 21, is equipped with Permeable blind pipe 4 in the protrusion 21, more in Shi Sha bases 2
Remaining rainwater can be discharged from Permeable blind pipe 4.
The sequence of construction of the porous pavement drainage system is:Native subgrade compaction (including roadbed treatment strengthening construction etc.),
Sand base 2 and Permeable blind pipe 4 are constructed, and discharge structure 1, pipeline 5 are laid with, and armored concrete module 31 is constructed, and filling perforation module 32 is applied
Work, road surface module 33 are constructed, if the material identical that road surface module 33 and filling perforation module 32 use, is pervious concrete, road
Face mould block 33 and filling perforation module 32 can construct together, increase the effective height of iterative structure, improve integral strength, finally carry out
Filtering layer 113 is constructed.
Above-mentioned porous pavement drainage system has the following advantages:The first, when rainwater flow is smaller, rainwater is through supercrust
Hole penetrates into sand base, then permeates the ground, and realizes rainwater on-site elimination and utilization;When rainwater flow is excessive or porous pavement
Water permeable ability decline when, rainwater by drainage inlet flow into the first drainage, through the first drainage filter layer filtering
Sand base is penetrated by the first drain outlet, when amount of rainfall is more than the drainability of the first drainage, extra rainwater
It can also be expelled directly out by the second drain outlet of the second drainage, ensure filtering, storage water and the draining of porous pavement
Function.The second, the filter layer in discharge structure can fixed time cleaning replace, be not necessarily to special installation, maintenance is simple, when porous pavement
When water permeable ability declines, without carrying out construction reformation again to porous pavement, the service life of porous pavement is extended, is reduced
Construction and maintenance cost.The supercrust for the overlapping harden structure that third, armored concrete module, filling perforation module and road surface module form
Permeable requirement can be met and greatly improve the bearing capacity and durability of porous pavement.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of discharge structure, which is characterized in that including:Discharge conduit, the lattice in the discharge conduit and company
The discharge conduit is divided into the first drainage and the second drainage, first catchment by logical portion, the lattice
Domain has drainage inlet and the first drain outlet, and second drainage has the second drain outlet, in the first row
Water area lower part is provided with the filter layer for covering first drain outlet, and the interconnecting part is set to above the lattice and connects
Logical first drainage top and second drainage.
2. discharge structure according to claim 1, which is characterized in that the height of the filter layer is not higher than the lattice
Height.
3. discharge structure according to claim 1, which is characterized in that the side of first drainage, bottom surface are at least
One position is equipped at least 1 first drain outlet.
4. discharge structure according to claim 3, which is characterized in that the side and bottom surface of first drainage are all provided with
There is at least 1 first drain outlet, the height in first drain outlet of side is set not higher than the filter layer
Highly.
5. discharge structure according to claim 1, which is characterized in that it is covered with head cover above second drainage,
The head cover closes the top of second drainage.
6. a kind of porous pavement drainage system, which is characterized in that including sand base, the supercrust being layed in above sand base and
Discharge structure, the discharge structure pass through supercrust and extend in sand base, and the drainage inlet is for accepting supercrust
Rainwater, second drain outlet are connected with pipeline.
7. porous pavement drainage system according to claim 6, which is characterized in that the top position of the lattice is higher than
The top surface of the sand base.
8. porous pavement drainage system according to claim 6, which is characterized in that the supercrust includes armored concrete
Module, the horizontal and vertical setting of armored concrete module form latticed filling perforation, are filled out in the latticed filling perforation
Hole module is equipped with road surface module above the armored concrete module and the filling perforation module.
9. porous pavement drainage system according to claim 8, which is characterized in that the armored concrete module it is transversal
Face shape is trapezoidal;And/or the cross-sectional shape of the latticed filling perforation is trapezoidal.
10. porous pavement drainage system according to claim 6, which is characterized in that the sand base includes at least one convex
Portion is equipped with Permeable blind pipe in the protrusion.
Priority Applications (1)
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CN201810288093.0A CN108396613A (en) | 2018-03-30 | 2018-03-30 | Discharge structure and porous pavement drainage system |
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CN201810288093.0A CN108396613A (en) | 2018-03-30 | 2018-03-30 | Discharge structure and porous pavement drainage system |
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Family
ID=63099087
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CN201810288093.0A Pending CN108396613A (en) | 2018-03-30 | 2018-03-30 | Discharge structure and porous pavement drainage system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109881557A (en) * | 2019-04-12 | 2019-06-14 | 成都建工第三建筑工程有限公司 | A kind of drainage system and its water discharge method |
CN112252114A (en) * | 2020-10-22 | 2021-01-22 | 南通大学 | Asphalt pavement drainage system permeates water |
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US4398842A (en) * | 1980-12-29 | 1983-08-16 | Harry Hodson | Method of overlay and sandwich formation of pervious concrete |
CA2029575A1 (en) * | 1990-11-08 | 1992-05-09 | Glenn D. Gosnell | Containment system for paving material |
JPH09177016A (en) * | 1995-12-26 | 1997-07-08 | Ngk Insulators Ltd | Water permeable drain ditch |
CN101003962A (en) * | 2007-01-26 | 2007-07-25 | 中国建筑工程总公司 | Rainwater-collecting pervious concrete pavement system |
CN201943173U (en) * | 2011-02-25 | 2011-08-24 | 大连市市政设计研究院有限责任公司 | Sinking groove type permeable gutter inlet facility system |
CN203821193U (en) * | 2014-05-12 | 2014-09-10 | 陈静 | Asphalt pavement curbstone |
CN206396651U (en) * | 2017-01-12 | 2017-08-11 | 四川大微安成科技有限公司 | A kind of pervious concrete road |
CN206800124U (en) * | 2017-06-13 | 2017-12-26 | 重庆中设工程设计股份有限公司 | High-performance permeable pavement paving structure |
CN206928165U (en) * | 2017-05-19 | 2018-01-26 | 上海市园林工程有限公司 | A kind of water penetration armored concrete basic unit |
CN208250856U (en) * | 2018-03-30 | 2018-12-18 | 嘉兴市规划设计研究院有限公司 | Discharge structure and porous pavement drainage system |
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US4398842A (en) * | 1980-12-29 | 1983-08-16 | Harry Hodson | Method of overlay and sandwich formation of pervious concrete |
CA2029575A1 (en) * | 1990-11-08 | 1992-05-09 | Glenn D. Gosnell | Containment system for paving material |
JPH09177016A (en) * | 1995-12-26 | 1997-07-08 | Ngk Insulators Ltd | Water permeable drain ditch |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109881557A (en) * | 2019-04-12 | 2019-06-14 | 成都建工第三建筑工程有限公司 | A kind of drainage system and its water discharge method |
CN112252114A (en) * | 2020-10-22 | 2021-01-22 | 南通大学 | Asphalt pavement drainage system permeates water |
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