CN110439340A - A kind of shed deckhead storm water man- agement system - Google Patents
A kind of shed deckhead storm water man- agement system Download PDFInfo
- Publication number
- CN110439340A CN110439340A CN201910742263.2A CN201910742263A CN110439340A CN 110439340 A CN110439340 A CN 110439340A CN 201910742263 A CN201910742263 A CN 201910742263A CN 110439340 A CN110439340 A CN 110439340A
- Authority
- CN
- China
- Prior art keywords
- shed deckhead
- water storage
- enclosing
- green
- filter mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 238000007726 management method Methods 0.000 title claims abstract description 23
- 241001464837 Viridiplantae Species 0.000 claims abstract description 27
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 23
- 241000220317 Rosa Species 0.000 claims description 21
- 239000000945 filler Substances 0.000 claims description 19
- 239000000565 sealant Substances 0.000 claims description 12
- 230000000994 depressogenic effect Effects 0.000 claims description 11
- 239000002689 soil Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 9
- 235000013311 vegetables Nutrition 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000001351 cycling effect Effects 0.000 abstract description 3
- 108091006146 Channels Proteins 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011380 pervious concrete Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
Abstract
The invention discloses a kind of shed deckhead storm water man- agement systems, comprising: shed deckhead, the waterproof protective layer being set on shed deckhead, the water storage mechanism being set in waterproof protective layer and green plant filter mechanism；Water storage mechanism and green plant filter mechanism connect side by side, and water storage mechanism and the green length direction for planting filter mechanism are consistent with the length direction of shed deckhead；Water storage mechanism is equipped with discharge structure close to the green side for planting filter mechanism, and is connected to green plant filter mechanism.The present invention is equipped with green plant filter mechanism and water storage mechanism, by the green water plant absorption for planting filter mechanism and purifying water body, first order natural filtration is formed, and store filtered water body by water storage mechanism, so as to cycling and reutilization；It is equipped with discharge structure in the side of water storage mechanism, extra water body is discharged；It is a kind of collection water body collection, filtering, water storage, is reused in the integrated ecosystem.
Description
Technical field
The present invention relates to garage water-treatment technology fields, and in particular to a kind of shed deckhead storm water man- agement system.
Background technique
With the development of society, the improvement of people's living standards, home-use car rapidly increases, and underground garage is generally built
It is vertical.To prevent rain erosion underground garage, existing top plate of underground parking garage is equipped with discharge structure or the green plant of plantation to absorb
Water body on top plate.
But as the ecological circulation of water resource utilizes the hot topic for having become holding ecological environment, the prior art
Shed deckhead discharge structure it is complicated and do not have water function and therefore provide one kind based on storm water man- agement, can water follow
The shed deckhead structure that ring utilizes is those skilled in the art's urgent problem to be solved.
Summary of the invention
The purpose of the present invention is to provide a kind of shed deckhead storm water man- agement systems, to solve existing shed deckhead structure
The problem of without water function.
To achieve the above object, technical solution proposed by the present invention is as follows:
A kind of shed deckhead storm water man- agement system, comprising:
Shed deckhead；
The waterproof protective layer being set on the shed deckhead；
The water storage mechanism being set in the waterproof protective layer and green plant filter mechanism, the water storage mechanism and the green plant
Filter mechanism connects side by side, and the length of the water storage mechanism and the green length direction for planting filter mechanism and the shed deckhead
It is consistent to spend direction；The water storage mechanism is equipped with discharge structure close to the green side for planting filter mechanism, and green plants with described
Filter mechanism connection.
The shed deckhead storm water man- agement system provided according to the present invention is equipped with green plant filter mechanism and water storage mechanism, passes through
The green water plant absorption for planting filter mechanism and purifying water body, form first order natural filtration, and stored and filtered by water storage mechanism
Water body afterwards, so as to cycling and reutilization；And it is equipped with discharge structure in the side of water storage mechanism, extra water body is discharged；It is a kind of
Collection water body collection, water storage, is reused in the integrated ecosystem at filtering.
In addition, shed deckhead storm water man- agement system according to the above embodiment of the present invention, can also have following additional
Technical characteristic:
An example according to the present invention, the water storage mechanism include enclosing, filler, road surface and sealant, the enclosing
Including close to green first enclosing for planting filter mechanism and far from green second enclosing for planting filter mechanism；The filler is filled out
It fills in the enclosing；The road surfacing is on the filler；The sealant is mounted on the top layer on the road surface.
An example according to the present invention, the road surface include the surface layer being from top to bottom laid with and base, the surface layer top
Portion is equipped with the sealant, and the base is laid on the filler.
An example according to the present invention, the filler from top to bottom successively include filter layer, bed course and aquifer；It is described
At the top of the filter layer, the aquifer is arranged in the waterproof protective layer for road surfacing.
An example according to the present invention, the aquifer include volcanic rock filler material.
An example according to the present invention, the level height of the first enclosing are lower than the level height of the bed course, and described the
One enclosing is equipped with the discharge structure, and is equipped with Rose Box at the top of the discharge structure, so that the green plant filter mechanism
Water body via the Rose Box filtering entering in the water storage mechanism.
An example according to the present invention, the discharge structure are the drainage channel being arranged on the enclosing, the row
The Rose Box is installed at the top of aquaporin.
An example according to the present invention is equipped with sheet-steel cover above the Rose Box；The sheet-steel cover two sides point installation
It is arranged on first enclosing and the bed course, and with the Rose Box interval, to protect the Rose Box.
An example according to the present invention, further includes overflow passage；Described overflow passage one end and the discharge structure connect
Logical, the other end, which is equipped with, stretches out the green overflow port for planting filter mechanism surface.
An example according to the present invention, the green plant filter mechanism include soil horizon and are set on the soil horizon
Vegetable layer, the soil horizon are equipped with to the depressed area of lower recess, and the level height of the depressed area bottom is tied greater than the draining
Level height at the top of structure, the overflow port are located in the depressed area.
The advantages of above additional aspect, will be set forth in part in the description, and partially will become from the following description bright
It is aobvious, or practice through the invention recognizes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the shed deckhead storm water man- agement system of the embodiment of the present invention
Fig. 2 is the top view of the shed deckhead storm water man- agement system of the embodiment of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, shed deckhead；2, waterproof protective layer；3, water storage mechanism；31, the first enclosing；311, drainage channel；32, second encloses
Gear；33, surface layer；34, base；35, filter layer；36, bed course；37, aquifer；38, sealant；4, green plant filter mechanism；41, native
Earth layer；411, depressed area；42, vegetable layer；5, Rose Box；6, sheet-steel cover；7, overflow passage；71, overflow port.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
In conjunction with shown in attached Fig. 1 and 2, it is based on " sponge city " theory, utilization ways, rainwater purification of the present embodiment from water source
Three aspects of mode and water storage container carry out general idea and provide a kind of garage top in conjunction with recessed green landscape engineering system
1 storm water man- agement system of plate mainly includes the knot such as shed deckhead 1, waterproof protective layer 2, water storage mechanism 3 and green plant filter mechanism 4
Structure.
The shed deckhead 1 of the present embodiment is generally concrete or reinforced concrete structure, since water storage mechanism 3 deposits for a long time
Water storage tank generates leak by the positions room of permeating the ground such as deformation joint, expansion joint for anti-water-stop body, influences parking environment or public
Equipment, one of improvement of the present embodiment are, one layer of waterproof protective layer 2 is first provided on the top surface of shed deckhead 1, and waterproof is protected
The material of sheath 2 can be any one engineering waterproofing coating, such as polyurethane etc..
Based on above-mentioned waterproof protective layer 2, in order to realize water storage function, further improvement of this embodiment is, anti-
Water storage mechanism 3 and green plant filter mechanism 4 are provided on water conservation layer 2, water storage mechanism 3 and green plant filter mechanism 4 connect side by side, need
It is noted that the water storage mechanism 3 of the present embodiment and the green quantity for planting filter mechanism 4 are not only as shown in the figure, the number of the two
Amount all can be multiple, multiple to be laid staggeredly on shed deckhead 1.
The length direction one of the water storage mechanism 3 of the present embodiment and the green length direction for planting filter mechanism 4 and shed deckhead 1
It causes；It is equipped with discharge structure close to the green side for planting filter mechanism 4 in water storage mechanism 3, and is connected to green plant filter mechanism 4, about
Discharge structure specific constructive form, water storage mechanism 3 are given below with the green specific form that is connected to for planting filter mechanism 4.
In conjunction with above structure explanation it is found that 1 storm water man- agement system of shed deckhead provided in this embodiment, is equipped with green plant and filters
Mechanism 4 and water storage mechanism 3 form first order nature mistake by the green water plant absorption for planting filter mechanism 4 and purifying water body
Filter, and filtered water body is stored by water storage mechanism 3, so as to cycling and reutilization；And draining is equipped in the side of water storage mechanism 3
Extra water body is discharged in structure；It is a kind of collection water body collection, filtering, water storage, is reused in the integrated ecosystem.
Specifically, the water storage mechanism 3 of the present embodiment includes enclosing, filler, road surface and sealant 38 in conjunction with shown in attached drawing 1,
Enclosing includes planting the of filter mechanism 4 close to green the first enclosing 31 (enclosing on right side in figure) for planting filter mechanism 4 and far from green
Two enclosings 32 (enclosing in left side in figure)；First enclosing 31 and the second enclosing 32 can be formed by masonry of cement mortar, and
Show to be coated with polyurethane water-proof coating.
The filler of the present embodiment is filled between the first enclosing 31 and the second enclosing 32, and effect includes the weight for bearing road surface
Power and water storage；Road surfacing passes through on filler for vehicle；Sealant 38 is mounted on the top layer on road surface, and anti-water-stop body steams
Hair is overflowed by filler top, it is preferred that the sealant 38 of the present embodiment is by colorless and transparent sealant or sealant group
At layer structure.
The road surface of the present embodiment includes the surface layer 33 being from top to bottom laid with and base 34, is equipped with sealant at the top of surface layer 33
38, base 34 is laid on filler, specifically, the surface layer 33 of the present embodiment is 30mm thickness pervious concrete surface layer 33, this implementation
The base 34 of example is 90m thickness pervious concrete base 34, has water penetration while guaranteeing structural strength.
The filler of the present embodiment from top to bottom successively includes filter layer 35, bed course 36 and aquifer 37；Road surfacing is in mistake
35 top of filtering layer, aquifer 37 are arranged in waterproof protective layer 2, wherein filter layer 35 is 30mm thickness coarse sand filter layer 35, bed course
36 be 300mm thickness granular cushion 36, and filled layer is preferably water imbibition and the preferable volcanic rock filler material of water lock.
In order to realize the connection of aquifer 37 in green plant filter mechanism 4 and water storage mechanism 3, the present embodiment is enclosed first first
The level height of gear 31 is designed as the level height lower than bed course 36, and is equipped with above-mentioned discharge structure in the first enclosing 31, and
Rose Box 5 is installed at the top of discharge structure so that it is green plant filter mechanism 4 water body via after the secondary filtration of Rose Box 5 again
It enters in water storage mechanism 3.
Specifically, the discharge structure of the present embodiment is the drainage channel 311 being arranged on the first enclosing 31, drainage channel
311 lay along the length direction of shed deckhead 1, Rose Box 5 are equipped at the top of drainage channel 311, Rose Box 5 includes punching with saturating
The cabinet of water and it is filled in the intracorporal quartz sand of case, it is preferred that be quartz sand by preventing stone in non-woven wraps loading cabinet
Sand flows out outside cabinet.
And vehicle damages Rose Box 5 by pressure in order to prevent, and sheet-steel cover 6 is equipped with above Rose Box 5；Pacify respectively 6 two sides of sheet-steel cover
It on bed course 36 and the first enclosing 31, and is spaced and is arranged with Rose Box 5, to protect Rose Box 5.Specifically, the present embodiment
Sheet-steel cover 6 is mounted on bed course 36 by steel plate.
Above structure is the specific constructive form of the water storage mechanism 3 originally implemented and improves and optimizates that this implementation is also to green plant
Filter mechanism 4 has carried out structure optimization, includes soil horizon 41 and being set to soil horizon in conjunction with what is shown in attached drawing 1, originally implemented
Vegetable layer 42 on 41, it is preferred that the plant of the vegetable layer 42 is resistance to water-wet plant.
The present embodiment is equipped in soil horizon 41 to the depressed area of lower recess 411, and the level height of 411 bottom of depressed area is greater than
Level height at the top of discharge structure guarantees the water content in soil so that water body concentrates in depressed area 411.
Further, the excessively high spilling of water level in depressed area 411, the present embodiment are also devised with overflow passage in order to prevent
7,7 one end of overflow passage is connected to discharge structure, and the other end, which is equipped with, stretches out the green overflow port 71 for planting 4 surface of filter mechanism, preferably
, overflow port 71 is located in depressed area 411, and extra water body is flowed into drainage channel 311 by overflow port 71.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified device must have a particular orientation, be constructed and operated in a specific orientation, and be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicit includes one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, unless otherwise
Clear specific restriction.
In the present invention unless specifically defined or limited otherwise, the terms such as term " installation ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral etc..For the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of shed deckhead storm water man- agement system characterized by comprising
Shed deckhead；
The waterproof protective layer being set on the shed deckhead；
The water storage mechanism being set in the waterproof protective layer and green plant filter mechanism, the water storage mechanism and the green plant filtering
Mechanism connects side by side, and the length side of the water storage mechanism and the green length direction for planting filter mechanism and the shed deckhead
To consistent；The water storage mechanism close to it is described it is green plant filter mechanism side be equipped with discharge structure, and with the green plant filter
Structure connection.
2. shed deckhead storm water man- agement system according to claim 1, which is characterized in that the water storage mechanism includes enclosing
Gear, filler, road surface and sealant, the enclosing include close to green first enclosing for planting filter mechanism and far from the green plant
Second enclosing of filter mechanism；The filler is filled in the enclosing；The road surfacing is on the filler；The sealing
Layer is mounted on the top layer on the road surface.
3. shed deckhead storm water man- agement system according to claim 2, which is characterized in that the road surface includes from top to bottom
The surface layer of laying and base, the surface layer top are equipped with the sealant, and the base is laid on the filler.
4. shed deckhead storm water man- agement system according to claim 2, which is characterized in that the filler is from top to bottom successively
Including filter layer, bed course and aquifer；At the top of the filter layer, the aquifer is arranged in the waterproof for the road surfacing
On protective layer.
5. shed deckhead storm water man- agement system according to claim 4, which is characterized in that the aquifer includes volcanic rock
Filler material.
6. shed deckhead storm water man- agement system according to claim 4, which is characterized in that the level height of the first enclosing is low
In the level height of the bed course, first enclosing is equipped with the discharge structure, and is equipped at the top of the discharge structure
Rose Box, so that the green water body for planting filter mechanism is entering in the water storage mechanism via Rose Box filtering.
7. shed deckhead storm water man- agement system according to claim 6, which is characterized in that the discharge structure is that setting exists
Drainage channel on the enclosing, the drainage channel top are equipped with the Rose Box.
8. shed deckhead storm water man- agement system according to claim 7, which is characterized in that be equipped with above the Rose Box
Sheet-steel cover；The sheet-steel cover two sides point are mounted on first enclosing and the bed course, and are arranged with the Rose Box interval,
To protect the Rose Box.
9. shed deckhead storm water man- agement system according to claim 1-8, which is characterized in that further include overflow pipe
Road；Described overflow passage one end is connected to the discharge structure, and the other end, which is equipped with, stretches out overflowing for the green plant filter mechanism surface
Head piece.
10. shed deckhead storm water man- agement system according to claim 9, which is characterized in that the green plant filter mechanism packet
The vegetable layer for including soil horizon and being set on the soil horizon, the soil horizon are equipped with to the depressed area of lower recess, the recess
The level height of area bottom is greater than the level height at the top of the discharge structure, and the overflow port is located in the depressed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742263.2A CN110439340A (en) | 2019-08-13 | 2019-08-13 | A kind of shed deckhead storm water man- agement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742263.2A CN110439340A (en) | 2019-08-13 | 2019-08-13 | A kind of shed deckhead storm water man- agement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110439340A true CN110439340A (en) | 2019-11-12 |
Family
ID=68434766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910742263.2A Pending CN110439340A (en) | 2019-08-13 | 2019-08-13 | A kind of shed deckhead storm water man- agement system |
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|---|---|
| CN (1) | CN110439340A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100879402B1 (en) * | 2008-07-29 | 2009-01-21 | 신강하이텍(주) | Eco-filter pavement technology in parking lots |
| CN105803894A (en) * | 2016-05-04 | 2016-07-27 | 亿利生态修复股份有限公司 | Urban road rainwater regulation and storage system |
| CN206529670U (en) * | 2016-12-29 | 2017-09-29 | 深圳市升源园林生态有限公司 | A kind of road drainage system in sponge city |
| CN207228279U (en) * | 2017-08-24 | 2018-04-13 | 中建八局第一建设有限公司 | A kind of sinking greenery patches structure |
| CN207567602U (en) * | 2017-12-06 | 2018-07-03 | 唐山学院 | Cell path rainwater oozes row's storage Collection utilization system |
| CN208363224U (en) * | 2018-06-15 | 2019-01-11 | 福建农林大学 | A kind of top plate of underground parking garage drainage greening structure using inverted beam structure |
| CN211081174U (en) * | 2019-08-13 | 2020-07-24 | 北京顺景园林股份有限公司 | Garage roof rain flood management system |
-
2019
- 2019-08-13 CN CN201910742263.2A patent/CN110439340A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100879402B1 (en) * | 2008-07-29 | 2009-01-21 | 신강하이텍(주) | Eco-filter pavement technology in parking lots |
| CN105803894A (en) * | 2016-05-04 | 2016-07-27 | 亿利生态修复股份有限公司 | Urban road rainwater regulation and storage system |
| CN206529670U (en) * | 2016-12-29 | 2017-09-29 | 深圳市升源园林生态有限公司 | A kind of road drainage system in sponge city |
| CN207228279U (en) * | 2017-08-24 | 2018-04-13 | 中建八局第一建设有限公司 | A kind of sinking greenery patches structure |
| CN207567602U (en) * | 2017-12-06 | 2018-07-03 | 唐山学院 | Cell path rainwater oozes row's storage Collection utilization system |
| CN208363224U (en) * | 2018-06-15 | 2019-01-11 | 福建农林大学 | A kind of top plate of underground parking garage drainage greening structure using inverted beam structure |
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