CN107190613A - Drainage system is oozed after a kind of first water storage in underground slowly - Google Patents
Drainage system is oozed after a kind of first water storage in underground slowly Download PDFInfo
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- CN107190613A CN107190613A CN201710538090.3A CN201710538090A CN107190613A CN 107190613 A CN107190613 A CN 107190613A CN 201710538090 A CN201710538090 A CN 201710538090A CN 107190613 A CN107190613 A CN 107190613A
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- slowly
- ooze
- discharge structure
- slow
- oozing
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Classifications
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- 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
-
- 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
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
It is slow after a kind of first water storage in underground to ooze drainage system, including ooze discharge structure, reinforcement top cover, several permeable water inlets and several dividing plates slowly with filtering material.Concrete structure is：The slow filtering material oozed in discharge structure is laid on provided with material internal is oozed slowly for the suspended particulate entrance entrained by prevention surface runoff, provided with discharge structure top reinforcement top cover can be oozed as the slow of pavement, parking lot or land operations place, enter the permeable water inlet for oozing discharge structure slowly provided with the bulky grain that can be prevented entrained by surface runoff, provided with the slow dividing plate for oozing rainwater in discharge structure can be retained on the spot, prevent the rainwater for not oozing emptying slowly on the spot from flowing into low-lying place.Surface runoff can be intercepted on the spot using the present invention, recharge groundwater is oozed slowly on the spot, the surface gathered water that rainfall is formed is reduced, alleviate urban waterlogging, be a kind of effective novel sponge body for reducing urban waterlogging.
Description
Technical field
The present invention relates to sponge city, municipal drainage, municipal works field, row is oozed slowly after particularly a kind of first water storage in underground
Water system.
Background technology
In urban inner, most surface soil layer, lawn are hard by roof, pitch, concrete stone sheet material or cement brick etc.
Material is substituted.Because such hard material is waterproof, rainwater can not effectively permeate the ground soil layer, fall in the waterproof paving of hard
The rainwater formation surface runoff in face.When local face diameter flow exceedes the displacement of urban sewer system, cause urban waterlogging；Together
When, because level of ground water goes up, and eminence underground water to lower quick collecting so that the rapid lifting of lower level of ground water, rain
Water impenetrably plays the timely and effective exclusion of drainage system and forms waterlogging.To solve this problem, have and set interim in city
Tank or pool, collect water rain and surface runoff, reduce urban waterlogging, but such interim water storage facility floor space is big, plus
Acute city development problems of land utilization.
Urban planner paves the way to alleviate urban waterlogging using pervious concrete in recent years.Pervious concrete seepage velocity is high
Up to 0.01-5 cels, the rainwater fallen on and the surface runoff from eminence can quickly be discharged into sub-surface, so as to subtract
Few urban waterlogging.But the drainage rates of water permeable pavement depend on the drainage rates and storage capacity of the following soil of basic unit, if
The instant storage displacement of water permeable pavement lower soil is less than the run-off and rainfall sum for entering water permeable pavement, then in permeable paving
Face surface will form stagnant water, that is, waterlogging occur.If the drainage rates of pervious concrete are too fast, level of ground water rises rapidly,
The Free water of phreatic surface can cause low-lying place's ponding formation waterlogging to lower stream.In addition, water permeable pavement is easily by sand dust and other
Little particle is blocked, and water permeable pavement needs periodic maintenance to maintain high permeability rate, and its maintenance cost is high, and difficulty is big.Again, permeable paving
Face is compared with conventional densification paving, and its intensity and durability are relatively low, therefore water permeable pavement can only apply to low traffic paving
(such as parking lot) rather than the arterial street of urban inner.
Therefore need to provide a new storage drainage system, make it have：(1) can be stored temporarily on the spot during rainfall rainwater and
Surface runoff, and underground water is gradually automatically discharged into after the rain, there is no ponding to internal system during rainfall next time so as to again
Secondary storage rainwater interim on the spot and surface runoff, this arrangement adjacent level of ground water is not obviously improved during (2) rainfall, reduces low-lying place
The probability of waterlogging is formed, (3) this system is not take up ground upper space, can both be embedded in pavement, parking lot or other
Face playground bottom, can be laid in the drainage system for substituting traditional road on both sides of the road again, the storage drain function of (4) this system
(or seldom needing to use) artificial periodic maintenance is not needed.Such system is developed, actually city provides novel sponge body, be to reduce city
City's waterlogging is worth a big problem of development.
The content of the invention
, can be by rainwater the present invention solves the technical problem of drainage system is oozed slowly after providing a kind of first water storage in underground
Temporarily it is collected in surface runoff and oozes discharge structure slowly, the slow moisture oozed inside discharge structure will be stored in some days after the rain
Underground is little by little discharged to automatically, level of ground water is not obviously improved, and reduces urban Underground pipeline discharge pressure.
In order to solve the above technical problems, one aspect of the present invention is：Row is oozed after a kind of first water storage in underground slowly
Water system, including discharge structure, reinforcement top cover, several permeable water inlets and several dividing plates are oozed slowly with filtering material, have
Body structure is：Draining knot is oozed provided with entering to ooze material internal slowly and be laid on for the suspended particulate entrained by prevention surface runoff slowly
Filtering material in structure；Provided with discharge structure top can be oozed as the slow of pavement, parking lot or other land operations places
Reinforcement top cover；Enter the permeable water inlet for oozing discharge structure slowly provided with the bulky grain that can be prevented entrained by surface runoff；Provided with can
Separate the slow dividing plate for oozing rainwater in discharge structure on the spot, prevent rainwater from not oozing emptying slowly on the spot and flowing into low-lying place.
The slow wall for oozing discharge structure, bottom surface all can ooze material to be slow simultaneously, or wherein one side is oozes material slowly,
Discharge structure being oozed slowly formula, wall being oozed the bottom of for and ooze the double any one for oozing formula of formula, bottom wall, preferably wall oozes formula.
The slow section form for oozing material is set according to landform, can be trapezoidal, circular or rectangle etc..Slowly discharge structure is oozed
Can be the geometry such as strip, cylinder, square.
It is described it is slow ooze discharge structure wall and bottom surface is equipped with filtering material, to filter out small entrained by surface runoff
Grain, prevents that oozing material slowly is blocked.Filtering material preferentially selects geotextiles.
Several water inlets are laid at the slow discharge structure edge that oozes, and water inlet is high seepy material, its permeation rate
About 0.1-10 cels.It is preferred that 0.5-2 cels.
The reinforcement top cover is made up of reinforcement seepy material, can filter the bulky grain entrained by surface runoff, it is allowed to rainwater
Rapidly entered with surface runoff and ooze discharge structure slowly.
The height of the dividing plate is slightly below the slow clear height for oozing discharge structure, and the moisture more than divider height can flow to river
Or other facilities that intercept water.The local gradient of the fore-and-aft distance Main Basiss of dividing plate, the factor such as rainfall, surface runoff amount is determined jointly
It is fixed.
The slow infiltration speed for oozing discharge structure is 5-50 centimetres/day.
The beneficial effects of the invention are as follows：
1st, rainwater and surface runoff are introduced directly into pond or river by traditional ditch, and local face diameter flow exceedes pumping equipment
Feasible value, cause waterlogging.And ooze discharge structure slowly and rainwater can on the spot be retained, then gradually will with oozing form slowly after rainfall
Trap water is discharged into underground, and surface runoff is regulated and controled to a greater extent.
2nd, the slow drainage pattern for oozing discharge structure is different from water permeable pavement, and water permeable pavement quickly arranges rainwater and surface runoff
Enter basic unit, pervious concrete seepage velocity is up to 0.01-5 cels, and rainwater is directly entered lower soil, lifts level of ground water,
Accelerate eminence current toward lower, accelerate low-lying place's water level to go up, cause lower formation waterlogging.Closely knit paving then directly forms ground
Runoff, and ooze discharge structure slowly and first temporarily intercept rainwater and surface runoff on the spot, do not increase level of ground water significantly, prevent
Eminence surface runoff flows to lower, reduces low lying areas waterlogging；Ooze discharge structure slowly intercepts rainwater and ground by it on the spot simultaneously
(preferably 1-7 days) are drained face diameter stream automatically in the form of infiltration within a certain period of time, without manual intervention, in case again temporarily
Collect the surface runoff of flush period formation.Therefore oozing drainage system has the function of sponge slowly after the first water storage in underground, is permeable paving
What face and compact structure did not had.
3rd, the water tank for being placed in parking lot, pavement bottom can be also used as road gully by oozing discharge structure slowly.
Slowly the water inlet for oozing discharge structure can be made of pervious concrete or other similar seepy materials, to prevent surface runoff
Entrained bulky grain enters oozes discharge structure slowly.This ooze slowly discharge structure top surface can be reinforcement cover plate, can as pavement,
Place needed for parking stall or other land operations.Some dividing plates are provided with discharge structure in slow ooze, according to setting area
The factors such as the gradient, run-off determine the fore-and-aft distance of dividing plate, and realization retains surface runoff on the spot, and control flows to the water of lower.
The 4th, a kind of new city sponge technology is provided, contributes to reduction or even eradicates urban waterlogging.
Brief description of the drawings
Fig. 1 is the slow stereogram for oozing drainage system after the first water storage in underground of the present invention.
Fig. 2 is the slow sectional axonometric drawing for oozing drainage system after the first water storage in underground of the present invention.
Fig. 3 is the slow section plan for oozing drainage system after the first water storage in underground of the present invention.
Fig. 4 is the slow installation diagram for oozing drainage system after the first water storage in underground of the present invention.
Fig. 5 is to ooze drainage system parking lot application schematic diagram slowly after the first water storage in underground
Fig. 6 is to ooze drainage system pavement application schematic diagram slowly after the first water storage in underground
Fig. 7 oozes formula, wall the bottom of for and oozes the double drainage effects for oozing formula discharge structure of formula, bottom wall.
Embodiment
Technical scheme is further described below by way of drawings and examples.
Embodiment 1
As shown in Figures 1 to 4, a slow example for oozing drainage system after the first water storage in underground of the present invention, located at small
The underload place such as area, parking lot, park bottom, application schematic diagram is as shown in figure 5, make full use of the bottom space in these places
Carry out rainwater storage.Wherein, cover and oozing the reinforcement top cover 7 on the top of discharge structure 2 slowly as earth construction, and be main water inlet
Mouthful.Slowly the filtering material 3 of laying water filtering inside discharge structure 2 is being oozed, is only allowing water by not allowing sand to pass through.Slowly draining is oozed
Structure 2 is that bottom oozes formula, wall and oozes the double one kind oozed in three kinds of forms of formula of formula, bottom wall, ooze slowly structure permeability rate should be 5-50 centimetres/
My god, preferably 5 centimetres/day.To enable slowly, oozing the internal water of discharge structure 2 effectively penetrates into soil layer, adds in slow ooze outside discharge structure 2
Spread certain thickness metalling 4.
Embodiment 2
The present embodiment is, in urban road or other linear engineering sides, drainage system to be oozed slowly after laying the first water storage in underground,
Instead of traditional gutter, application schematic diagram is as shown in Figure 6.Lay several permeable road kerbs 6 in the slow side for oozing discharge structure 2
As water inlet, its seepy material with permeability rate by 0.1-5 cels is made.The perforate of water inlet away from, perforate size, list
Side or bilateral perforate situation can be depending on actual conditions.Surface runoff enters through permeable road kerb 6 oozes discharge structure slowly.Slowly row is oozed
Permeable reinforcement top cover 7 at the top of water-bound is used as urban road both sides pavement, it is allowed to which rainwater or surface runoff enter
Slowly discharge structure 2 is oozed.
The permeable lid 7 of reinforcement oozes discharge structure 2 and separated with slow, in case periodic replacement filtering material 3 (preferably geotextiles) or
Periodic cleaning remains in the slow dregs oozed in discharge structure.
Embodiment 3
As shown in figure 1, slow another application example for oozing drainage system after the first water storage in underground of the present invention.Using slow
Ooze the slow of concrete preparation and ooze discharge structure 2, the match ratio of concrete is oozed slowly：4-9 millimeters of aggregate 80-100 parts by weight, 2-4 millis
Rice aggregate 46-58 parts by weight, 1-2 millimeters of aggregate 50-63 parts by weight, less than 1 millimeter fine powder 24-30 parts by weight, cement cementitious material
Expect 40-50 parts by weight, water 17-21 parts by weight.It is preferred that:The 4-9 millimeters of parts by weight of aggregate 90, the 2-4 millimeters of parts by weight of aggregate 52,1-2
The millimeter parts by weight of aggregate 56, less than the 1 millimeter parts by weight of fine powder 27, the parts by weight of cement 45, the parts by weight of water 19.The cement is 42.5
Level Portland cement, the slump for strictly controlling concrete mix is 0 centimetre, manufactures experimently into and oozes concrete slowly.Trial-production 30
The centimeter of sample of 50 cm x of cm x 6, water is full of after conserving 7 days as the bottom surface of a water tank using the trial-manufacture of sample by water tank
Afterwards, the relation that observation cistern water level declines with the time, the seepage rate of inverse sample.Testing the slow seepage rate for oozing concrete is about
9.12+0.005 centimetres/day.
Permeable road kerb 6 and permeable reinforcement top cover 7 are made up of pervious concrete, and its raw material system is matched somebody with somebody：5-10 millimeters of aggregate 50-
70 parts by weight, cement 9-15 parts by weight, water 3-5 parts by weight.It is preferred that：The 5-10 millimeters of parts by weight of aggregate 60,12 points of cement, moisture
4 parts by weight.Described cement is 42.5 grades of Portland cements, is strictly controlling the slump of concrete mix for 0 li
Rice.
According to it is above-mentioned be made it is slow ooze concrete, simulate bottom respectively with Hydrus 2D softwares and ooze formula, wall to ooze formula, bottom wall double
Ooze the slow drainage rates for oozing discharge structure 2 of three kinds of formula.The slow of simulation oozes a length of 50 centimetres of the bottom of discharge structure 2, a height of 50 centimetres
Horizontal strip shape structure.Assuming that it is geotextiles that filtering material 3 is placed in each inside for oozing discharge structure 2 slowly, i.e. fine grained
It cannot be introduced into and ooze material internal slowly, it is ensured that the slow infiltration speed for oozing material is constant.To be oozed slowly under the conditions of the worst ubbase drain of research
The drainage rates of discharge structure 2, it is assumed that the slow discharge casing that oozes is positioned over Mud Ground, the saturation infiltration speed of mud is about 6 centimetres/
My god, outside the mud and chest between 2-5 centimetres of filling rubble, and rubble and mud are separated with geotextiles.Relative to
Slowly discharge structure 2 is oozed, the drainage rates of rubble are considered as infinity.Assuming that slow ooze fills 50 centimetres of high rainwater, mould in discharge structure 2
Intend that slow to ooze the rule that the water level inside of discharge structure 2 declines with the time as shown in Figure 7.Bottom wall is double to be oozed the slow of formula and oozes discharge structure 2 and ooze
Water speed rate is fast, and about 25 hours can ooze 50 centimetres of water；Bottom oozes the slow of formula and oozes the infiltration of discharge structure 2 speed secondly, and about 50
Multiple hours can ooze 50 centimetres of water；The slow infiltration of discharge structure 2 speed of oozing that wall oozes formula has just started comparatively fast, to be primarily due to just
Start that hydraulic pressure is big and two walls to ooze out area larger, later stage wall oozes formula, and to ooze the infiltration of discharge structure 2 speed slowly extremely slow, is primarily due to structure
After interior water level reduction, the hydraulic pressure of side wall is relatively low and infiltration area reduces.By about 120 hours (5 days), wall oozes formula knot
About 1 centimetre of surplus water in structure.Therefore, although bottom, which oozes formula, wall and oozes double the slow of formula that ooze of formula, bottom wall, oozes the drainage pattern of discharge structure 2
It is different, but the slow discharge structure 2 that oozes all can ooze all ponding in the structure that finishes substantially in 1-7 days.
It will be noted that formula, wall are oozed in bottom oozes that formula, bottom wall are double to be oozed formula and ooze the drainage rates of discharge structure 2 and the chi of structure slowly
The factors such as very little, the slow seepage rate for oozing material, the slow size for oozing material, structure internal water accumulation height are relevant.As long as design is suitable, bottom is oozed
Formula, wall ooze formula, bottom wall it is double ooze formula and ooze discharge structure 2 slowly all structure internal water accumulation can be drained automatically within the predetermined time, in case
Surface runoff and rainwater are temporarily stored again.
Operation principle
During rainfall, rainwater and surface runoff ooze row slowly by permeable reinforcement top cover 7 and water inlet 6 or alternative one entrance
Water-bound 2, oozes the infiltration of discharge structure 2 speed 5-50 centimetres/day, the water in discharge structure 2 will be oozed slowly little by little to be discharged due to slow
To underground, it is not obviously improved within a certain period of time in rainfall and thereafter and oozes level of ground water near discharge structure 2 slowly.According to
According to the gradient for oozing the position of discharge structure 2 slowly, several dividing plates 8 are set in discharge structure 2 in slow ooze, thus draining will be oozed slowly
Structure 2 is divided into several and oozes header tank slowly.When precipitation is smaller, if ooze slowly water level inside discharge structure 2 not above every
The height of plate, the moisture of header tank trapped inside is each oozed slowly will little by little be discharged into underground, and in the predetermined time
Automatically drain.Discharge structure 2 is oozed slowly when the surface water that rainfall is larger or comes from other eminence runoffs enters, causes to ooze slowly
The height of the super internal partition 8 of height of water level in discharge structure 2, overage can be discharged to river or other facilities that intercept water, so as to drop
The risk of low urban waterlogging.
When ooze slowly there is alluvial to have certain dregs in discharge structure 2 when, 7 pairs of reinforcement top cover can be opened and ooze discharge structure slowly
Interior progress desilting or replacing filtering material 3.
The specific height for oozing discharge structure 2 slowly, width, water inlet size and apart from, dividing plate 8 apart from ginsengs such as, divider heights
Number is by by the local gradient, level of ground water height, the expected factor such as flow path surface and the interval of adjacent rainfall twice and size
Together decide on.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure that bright specification and accompanying drawing content are made, equivalent flow conversion, appropriate deleting or increasing, or directly or indirectly fortune
Used in other related technical fields, similarly include within the scope of the present invention.
Claims (10)
1. slow after a kind of first water storage in underground ooze drainage system, including slow with filtering material ooze discharge structure, it is reinforcement top cover, some
Individual permeable water inlet and several dividing plates, it is characterised in that concrete structure is：The system is provided with to prevent entrained by surface runoff
Suspended particulate enter and ooze material internal slowly and be laid on the slow filtering material oozed in discharge structure, provided with can as pavement,
Parking lot or the slow of land operations place ooze discharge structure top reinforcement top cover, big entrained by surface runoff provided with that can prevent
Particle enters the permeable water inlet for oozing discharge structure slowly, provided with that can retain the slow dividing plate for oozing rainwater in discharge structure on the spot, prevents
The rainwater for not oozing emptying slowly on the spot flows into low-lying place.
2. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that the slow wall for oozing discharge structure
Face, bottom surface are to ooze material slowly or are wherein simultaneously to ooze material slowly.
3. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that the slow discharge structure that oozes of is at the bottom
Ooze formula, wall and ooze the double any one for oozing formula of formula, bottom wall, preferably wall oozes formula.
4. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that slow to ooze cutting for discharge structure
Face form is set according to landform, is set to trapezoidal, circular or rectangle, and the entity structure that discharge structure is oozed slowly is strip, cylinder
Or square geometry.
5. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that the slow wall for oozing discharge structure
Face and bottom surface are provided with filtering material, to filter out the little particle entrained by surface runoff, prevent that oozing material slowly is blocked, the mistake
The preferred geotextiles of filter material material.
6. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that along oozing discharge structure slowly
Edge is provided with several water inlets, and water inlet is made up of high seepy material, high seepy material permeation rate for 0.1-10 centimetres/
Second.
7. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that along oozing discharge structure slowly
Edge is provided with several water inlets, and the high seepy material permeation rate of water inlet is 0.5-2 cels.
8. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that reinforcement top cover is saturating by reinforcement
Water material is constituted, and can filter the bulky grain of surface runoff carrying, it is allowed to which rainwater and surface runoff are rapidly entered oozes discharge structure slowly.
9. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that the dividing plate is waterproof
Material, divider height is slightly below the slow clear height for oozing discharge structure, and the moisture more than divider height can flow to river or other sections
Drainage facility, the fore-and-aft distance of dividing plate is according to the local gradient, and rainfall, surface runoff amount factor are together decided on.
10. ooze drainage system slowly after the first water storage in underground according to claim 1, it is characterised in that described to ooze draining knot slowly
The infiltration speed of structure is 5-50 centimetres/day.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538090.3A CN107190613A (en) | 2017-07-04 | 2017-07-04 | Drainage system is oozed after a kind of first water storage in underground slowly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710538090.3A CN107190613A (en) | 2017-07-04 | 2017-07-04 | Drainage system is oozed after a kind of first water storage in underground slowly |
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| CN107190613A true CN107190613A (en) | 2017-09-22 |
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| CN201710538090.3A Pending CN107190613A (en) | 2017-07-04 | 2017-07-04 | Drainage system is oozed after a kind of first water storage in underground slowly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108178441A (en) * | 2018-01-03 | 2018-06-19 | 北京师范大学 | A kind of permeable decontamination material assembly module of sponge urban construction |
| CN109356278A (en) * | 2018-09-28 | 2019-02-19 | 广西城居乐科技有限公司 | A kind of filter device suitable for slow discharge outlet |
| CN109403450A (en) * | 2018-10-12 | 2019-03-01 | 河海大学 | A kind of environment-friendly type underground aqua storage tank for road drainage under Rainfall Condition |
| CN109577569A (en) * | 2018-05-29 | 2019-04-05 | 怀化沃普环保科技有限公司 | Open waterproof system |
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| CN2806567Y (en) * | 2005-03-25 | 2006-08-16 | 张益时 | Water well system for collecting rainwater to the ground |
| KR20120005874U (en) * | 2011-02-11 | 2012-08-21 | 정춘식 | boundary stone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108178441A (en) * | 2018-01-03 | 2018-06-19 | 北京师范大学 | A kind of permeable decontamination material assembly module of sponge urban construction |
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| CN109577569A (en) * | 2018-05-29 | 2019-04-05 | 怀化沃普环保科技有限公司 | Open waterproof system |
| CN109356278A (en) * | 2018-09-28 | 2019-02-19 | 广西城居乐科技有限公司 | A kind of filter device suitable for slow discharge outlet |
| CN109403450A (en) * | 2018-10-12 | 2019-03-01 | 河海大学 | A kind of environment-friendly type underground aqua storage tank for road drainage under Rainfall Condition |
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