CN115306009A - Novel drainage green belt construction method based on LID concept - Google Patents
Novel drainage green belt construction method based on LID concept Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000002689 soil Substances 0.000 claims abstract description 36
- 239000004746 geotextile Substances 0.000 claims abstract description 31
- 239000004576 sand Substances 0.000 claims abstract description 24
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 238000001764 infiltration Methods 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 6
- 235000013311 vegetables Nutrition 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 34
- 235000015097 nutrients Nutrition 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- 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
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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Abstract
The invention relates to a green belt, and discloses a novel drainage green belt construction method based on LID concept, which comprises the following steps: firstly, measuring and paying off, and secondly, excavating a base groove (1); step three, installing a waterproof geotechnical cloth layer (26), and step four, constructing a gravel layer (25) and a medium-coarse sand layer (24); step five, mounting a water seepage geotextile layer (23), step six, backfilling planting soil, and planting vegetation after backfilling. The invention not only can effectively form a rainwater ecosystem for utilizing, discharging and storing accumulated water on the road surface, but also can effectively reduce the problems of water and soil loss, nutrient loss and the like of green belts.
Description
Technical Field
The invention relates to a green belt, in particular to a novel drainage green belt construction method based on the LID concept.
Background
With the rapid development of road engineering in China, urban waterlogging becomes a hot problem to be paid attention to by people. In the past, cities pursue 'one row' for rainwater, and the lower urban drainage standard and the lack of a rainwater utilization system are main causes of disasters of resources. Therefore, an environmental protection measure which can realize rainwater storage, infiltration and purification and ensure the safety of urban drainage and waterlogging prevention is urgently needed.
In order to improve the utilization rate of rainwater resources and perfect an ecological environment protection mechanism, the LID concept, namely the design concept of a sponge city, is suitable for this, in a framework constructed by the sponge city, a road traffic system is used as one of three large spaces of the city and is a high-incidence zone where waterlogging occurs, and an urban road green belt is designed in a sinking mode to be changed into a sponge body for storing water, so that the urban road green belt has great significance for establishing a scientific and perfect urban green land water circulation system and treating the chronic urban waterlogging.
The existing greenbelt based on the design concept of 'sponge city' can store the water accumulated in the greenbelt, but the water and soil and nutrient loss of the greenbelt still needs to be further improved.
Disclosure of Invention
The invention provides a novel drainage green belt based on an LID concept, aiming at the problems of green belts based on a sponge city design concept in the prior art.
In order to solve the technical problems, the invention is solved by the following technical scheme:
a novel drainage green belt construction method based on LID concept comprises the following steps:
firstly, measuring and setting out, setting a construction leveling point and an auxiliary construction baseline according to a coordinate control point and the leveling point, lofting according to the section size requirement of a drawing to determine the elevation of an excavation surface, and calculating an excavation depth mark on a timber pile;
step two, excavating a foundation trench, namely excavating a soil layer 5-10 cm above the elevation of the bottom of the designed trench through a machine, and then excavating manually to the elevation of the bottom of the designed trench;
step three, installing the waterproof geotextile layers, namely adopting one cloth and one film of 600g/m 2 The waterproof geotextile is laid by a scraper;
step four, constructing a gravel layer and a medium-coarse sand layer; paving broken stones and medium coarse sand on the waterproof geotextile sequentially by using a paver;
fifthly, mounting the water seepage geotextile layer, and paving 300g/m on the medium-coarse sand layer by using a scraper 2 Geotextile;
and step six, backfilling planting soil, and planting vegetation after backfilling.
Preferably, in the second step, after the foundation trench is excavated, the side wall of the foundation trench needs to be supported in time by adopting a support guard plate and a cross brace. The supporting guard plate can effectively prevent the unstable foundation trench side slope from damaging the road curb stones.
As preferred, after the foundation trench is dug, install rainwater pipeline before the waterproof geotechnological cloth layer of installation, rainwater pipeline includes vertical pipe and sets up in the horizontal pipe of first horizontal pipe and second of vertical socle portion, first horizontal pipe and rainwater well intercommunication, and the horizontal pipe of second is equipped with the infiltration hole along greenbelt body length direction setting and pipe wall, and the upper end of vertical pipe is equipped with the fender lid that stretches out the vegetable layer, keeps off to cover and is equipped with the overflow hole.
One part of water entering the rainwater pipeline permeates into the bottom soil through the bottom water seepage holes, the other part of water is discharged into the rainwater well, rainwater is reasonably distributed to the rainwater well, and rainwater ponding pressure of each position is fully relieved. Set up of fender cover can avoid leaf, cubic to get into rainwater pipeline, and the fender cover sets up in vegetable layer upper portion, can make rainwater when only a small amount of ponding absorbed by the infiltration, just discharges through the downspout when the rainwater volume is great, rationally reduces city inside rainwater well water storage pressure.
Preferably, before installing the rainwater pipeline, a pipeline installation plate is arranged in the base groove, and the pipeline installation plate comprises a horizontal plate and a vertical plate; then the vertical pipe is tightly attached to the vertical plate to be fixed, and the first transverse pipe and the second transverse pipe are both supported on the upper end face of the horizontal plate. The installation stability of rainwater pipeline in the foundation trench can effectively be guaranteed in the setting of pipeline mounting panel, avoids rainwater pipeline slope when setting up each layer of greenbelt body simultaneously, and convenient construction improves the work efficiency.
Preferably, the particle size of the gravel in the crushed stone layer in the fourth step is
The diameter of the medium coarse sand in the medium coarse sand layer is less than 8 mm. The stability of planting the soil layer can be guaranteed on the one hand in the setting of the suitable particle diameter in metalling and medium and coarse sand layer, prevents to sink, and on the other hand still makes the infiltration plant the intraformational water of soil in timely discharge, reduces the influence to vegetation layer ponding.
Preferably, when the gravel layer and the medium-coarse sand layer are paved, material conveying and paving are sequentially carried out from far to near, required materials are placed in a segmented and piled mode according to the pre-calculated amount, paving is carried out by adopting a manual matching machine, grading distribution is uniform and consistent when the gravel is paved, and no obvious particle separation phenomenon exists.
Preferably, the grain size of the soil blocks in the planting soil layer in the sixth step is 1-2cm.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
the invention not only can effectively form a rainwater ecosystem for utilizing, discharging and storing accumulated water on the road surface, but also can effectively reduce the problems of water and soil loss, nutrient loss and the like of green belts.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the structure of the base groove of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
Example 1
The utility model provides a novel drainage greenbelt based on LID theory, as shown in figure 1, as shown in figure 2, including foundation ditch 1, set up greenbelt body 2 in the foundation ditch 1, the 1 notch outside of foundation ditch and all be equipped with curb 3 and roadside stone 4 along 2 length direction's of greenbelt body both sides, be equipped with outlet 41 towards greenbelt body 2 on the roadside stone 4, 3 medial surfaces of curb are the inclined plane towards greenbelt body 2 slope in this embodiment, the lateral surface is the ladder face, roadside stone 4 sets up on the ladder horizontal plane of 3 outside ladder faces of curb, the up end of roadside stone 4 is higher than the upper end of curb 3, when the road area water yield reaches a fixed time, the water on road surface can flow into 2 up end departments of greenbelt body through outlet 41, gradually discharged by the drainage through greenbelt body 2.
The green belt body 2 sequentially comprises a vegetation layer 21, a planting soil layer 22, a water seepage geotextile layer 23, a medium coarse sand layer 24, a gravel layer 25 and a waterproof geotextile layer 26 from top to bottom, a rainwater pipeline 5 communicated with a rainwater well is also pre-embedded in the green belt body 2, the base groove 1 is a trapezoidal groove with the width gradually reduced from top to bottom, and the planting soil layer 22, the water seepage geotextile layer 23, the medium coarse sand layer 24, the gravel layer 25 and the waterproof geotextile layer 26 are sequentially laid in the base groove 1. The green belt body 2 in the embodiment adopts a multilayer structure, a water-permeable geotextile layer 23 is specially arranged to effectively reduce the loss of soil and nutrients of a planting soil layer 22, and a waterproof geotextile layer 26 is arranged at the bottom of the foundation trench 1 and adopts a cloth-film 600g/m 2 The concrete has the advantages of good mechanical function, corrosion resistance, ageing resistance, isolation, water resistance, water drainage, protection, stability and the like, can resist damage caused by external force during construction, reduces creep and can still maintain the original function under long-term load. Simultaneously, the medium-coarse sand layer 24 and the gravel layer 25 are filled in the middle of the foundation trench 1, the stability of the planting soil layer 22 is effectively improved, water permeating into the planting soil layer 22 can be discharged in time, the vegetation is prevented from being influenced by long-time water accumulation of the planting soil layer 22, and the gravel particle size in the gravel layer 25 is
The diameter of the medium coarse sand in the medium coarse sand layer 24 is less than 8mm, and the paving thickness is 25cm.
In addition, the side wall of the foundation trench 1 is provided with the supporting plate 6, the supporting plate 6 is arranged on the side wall of the foundation trench 1 in a step shape from top to bottom, and the supporting plate 6 arranged in the step shape can be stably supported on the side wall of the foundation trench 1, so that the road kerbs 3 are effectively prevented from being damaged due to unstable side slopes of the foundation trench 1.
Wherein, the upper end of vertical pipe 51 is equipped with the fender lid 54 that stretches out vegetation layer 21, is equipped with the overflow hole on keeping off lid 54, still pre-buried pipeline mounting panel 7 in the greenbelt body 2, and pipeline mounting panel 7 includes horizontal plate 71 and vertical board 72, and vertical pipe 51 hugs closely vertical board 72 and sets up, and first horizontal pipe 52 and second horizontal pipe 53 are all supported on horizontal plate 71 up end.
The embodiment also provides a novel drainage green belt construction method based on the LID concept, which comprises the following steps:
firstly, measuring and setting out, setting a construction leveling point and an auxiliary construction baseline according to a coordinate control point and the leveling point, lofting according to the section size requirement of a drawing to determine the elevation of an excavation surface, and calculating an excavation depth mark on a timber pile;
step two, excavating a foundation trench 1, namely excavating a soil layer 5-10 cm above the elevation of the bottom of the designed trench by a machine, and then excavating the soil layer to the elevation of the bottom of the designed trench by a manual method, wherein the mode of firstly excavating the machine and then excavating the soil layer manually can not only effectively improve the work efficiency, but also avoid overbreak and disturbance of original state soil; because the excavation depth is about 1.6 meters averagely, the two sides of the excavation depth are compacted soil foundations, and slope excavation is adopted, the side wall of the foundation trench 1 needs to be supported in time by adopting a supporting plate 6 and a cross brace mode after the excavation of the foundation trench 1, the supporting plate 6 adopted in the embodiment is a wood plate and is arranged in a step shape from top to bottom on the side wall of the foundation trench 1, the supporting plate 6 arranged in the step shape can be supported on the side wall of the foundation trench 1 more stably, and the road curb 3 is effectively prevented from being damaged due to the instability of the side slope of the foundation trench 1.
Step three, installing the waterproof geotextile layer 26, namely adopting one cloth and one film of 600g/m 2 The waterproof geotextile is laid by the scraper(ii) a The waterproof geotextile has good mechanical function, can resist corrosion, has the functions of isolation, water prevention, drainage, protection, stabilization and the like due to ageing resistance, can resist damage caused by external force during construction, has small creep and can still keep the original function under long-term load.
The laying method of the waterproof geotextile layer 26 comprises the following steps:
(1) The impermeable geotextile material has large dead weight and is suitable for being carried and laid by a scraper;
(2) The joints of the impermeable geotextile are parallel to the center line of the road;
(3) The following technical requirements must be met for damage and repair;
(1) the patch material for filling holes or cracks is required to be consistent with the impermeable geotextile material;
(2) the patch should extend at least 30 centimeters beyond the extent of the damaged impermeable geotextile.
(4) And after the anti-seepage geotextile is installed, checking the construction surface, and cleaning objects which can puncture the anti-seepage geotextile.
Step four, constructing the gravel layer 25 and the medium-coarse sand layer 24; paving broken stones and medium coarse sand on the waterproof geotextile sequentially by using a paver; paving a gravel layer 25 and a medium-coarse sand layer 24, and after the gravel conveyed to a construction site is leveled, uniformly distributing large and small particles, and controlling the particle size of the gravel
The diameter of medium coarse sand is not more than 8mm, and is once paved according to design thickness, and the fortune material and the paving should be gone on near in proper order after far earlier, and required material is placed according to the segmentation of precomputed volume branch pile, adopts manual fit machinery to pave, and it is even unanimous to answer gradation distribution when the rubble paves, does not have obvious granule separation phenomenon, and the four-tooth harrow of forbidding draws the material pile, causes coarse and fine material local concentration, and the coarse and fine material concentration condition that takes place when paving should in time be handled.
Step five, mounting the water seepage geotextile layer 23, and paving 300g/m on the medium and coarse sand layer 24 by using a scraper 2 Geotextile;
and step six, backfilling planting soil, planting vegetation after backfilling, controlling the particle size of soil blocks to be about 1-2cm and not more than 10% of the soil blocks with the particle size of 2-4cm besides meeting the requirements of salinity and PH value, keeping the outer surface of the soil blocks to be fine, loose, moist and free of impurities, and removing the impurities such as garbage and the like on the base soil before backfilling.
In the embodiment, the rainwater pipeline 5 is installed after the foundation trench 1 is dug and before the waterproof geotextile layer 26 is installed, the rainwater pipeline 5 comprises a vertical pipe 51, a first transverse pipe 52 and a second transverse pipe 53 which are arranged at the bottom of the vertical pipe 51, the first transverse pipe 52 is communicated with a rainwater well, the second transverse pipe 53 is arranged along the length direction of the green belt body 2, a water seepage hole is formed in the pipe wall of the green belt body, a blocking cover 54 which extends out of the vegetable layer 21 is arranged at the upper end of the vertical pipe 51, an overflow hole is formed in the blocking cover 54, a pipeline installing plate 7 is arranged in the foundation trench 1 before the rainwater pipeline 5 is installed, and the pipeline installing plate 7 comprises a horizontal plate 71 and a vertical plate 72; the vertical tube 51 is then secured against the vertical plate 72, and the first and second lateral tubes 52, 53 are each supported on the upper end face of the horizontal plate 71.
Rainwater on the road surface is collected to the green belt through the road cross slope after rainfall, the rainwater flows into the green belt from the water outlets 41 in the road side stones 4 on the two sides of the green belt, one part of the rainwater collected into the green belt is infiltrated in surface soil of the green belt, the part which cannot be infiltrated is gathered at the overflow hole of the rainwater pipeline 5 in the green belt and enters the rainwater pipe through the overflow hole, one part of the water entering the vertical pipe 51 in the rainwater pipe flows through the second transverse pipe 53 and permeates into soil at the bottom layer of the green belt body 2 through the water seepage hole on the second transverse pipe, the other part of the water is discharged into the urban rainwater well through the first transverse pipe 52, so that the rainwater can be used later, the whole process realizes utilization, discharge and storage of the accumulated water on the road surface, a relatively complete rainwater ecosystem is formed, soil and garbage in the water can be effectively filtered, the rainwater pipeline 5 is prevented from being blocked, the later-stage pipeline cleaning work is reduced, and the later-stage cleaning and maintenance cost is saved by 30%. Meanwhile, water and soil loss and vegetation damage to the green belt caused by water flow are effectively prevented, rainwater can be collected, water resources are effectively utilized, the construction cost is comprehensively saved by about 8% compared with the traditional construction method, the construction method promotes the progress of the green belt construction technology, and the method has good popularization and application values and wide market application prospects.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (7)
1. Novel drainage green belt construction method based on LID theory is characterized by comprising the following steps:
firstly, measuring and setting out, setting a construction leveling point and an auxiliary construction baseline according to a coordinate control point and the leveling point, lofting according to the section size requirement of a drawing to determine the elevation of an excavation surface, and calculating an excavation depth mark on a timber pile;
step two, excavating the foundation trench (1), namely excavating a soil layer 5-10 cm above the elevation of the bottom of the designed trench through a machine, and then excavating manually to the elevation of the bottom of the designed trench;
step three, installing the waterproof geotextile layer (26) by adopting a cloth-film 600g/m 2 The waterproof geotextile is laid by a scraper;
step four, constructing a gravel layer (25) and a medium-coarse sand layer (24); paving broken stones and medium coarse sand on the waterproof geotextile sequentially by using a paver;
fifthly, mounting the water-permeable geotextile layer (23), and paving 300g/m on the medium and coarse sand layer (24) by using a scraper 2 Geotextile;
and step six, backfilling planting soil, and planting vegetation after backfilling.
2. A novel LID concept-based drainage green belt construction method as claimed in claim 1, characterized in that: and step two, after the foundation trench (1) is excavated, the side wall of the foundation trench (1) needs to be supported in time by adopting a support guard plate (6) and a cross brace.
3. A novel LID concept-based drainage green belt construction method as claimed in claim 1, characterized in that: after foundation trench (1) is dug, install rainwater pipeline (5) before waterproof geotechnological cloth layer (26) of installation, rainwater pipeline (5) include vertical pipe (51) and set up in the horizontal pipe (52) of first horizontal pipe (52) and the second of vertical pipe (51) bottom, first horizontal pipe (52) and rainwater well intercommunication, the horizontal pipe (53) of second is equipped with the infiltration hole on setting up and the pipe wall along greenbelt body (2) length direction, the upper end of vertical pipe (51) is equipped with fender lid (54) of stretching out vegetable layer (21), be equipped with the overflow hole on fender lid (54).
4. The novel drainage green belt construction method based on LID concept as claimed in claim 3, characterized in that: before the rainwater pipeline (5) is installed, a pipeline installation plate (7) is arranged in the foundation trench (1), and the pipeline installation plate (7) comprises a horizontal plate (71) and a vertical plate (72); then the vertical pipe (51) is tightly fixed on the vertical plate (72), and the first transverse pipe (52) and the second transverse pipe (53) are supported on the upper end surface of the horizontal plate (71).
5. The novel drainage green belt construction method based on LID concept as claimed in claim 3, characterized in that: in the fourth step, the particle diameter of the gravel in the gravel layer (25) is
The diameter of the medium coarse sand in the medium coarse sand layer (24) is less than 8 mm.
6. The novel drainage green belt construction method based on LID concept as claimed in claim 5, characterized in that: when the gravel layer (25) and the medium-coarse sand layer (24) are paved, material transportation and paving are sequentially carried out from far to near, required materials are placed in a segmented and piled mode according to the pre-calculated amount, paving is carried out by adopting a manual matching machine, grading distribution is uniform and consistent when the gravel is paved, and no obvious particle separation phenomenon exists.
7. The novel drainage green belt construction method based on LID concept as claimed in claim 1, characterized in that: in the sixth step, the grain size of the soil blocks in the planting soil layer (22) is 1-2cm.
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| CN202210830948.4A CN115306009A (en) | 2022-07-15 | 2022-07-15 | Novel drainage green belt construction method based on LID concept |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6748698B1 (en) * | 1998-05-16 | 2004-06-15 | Coventry University | Water flow control system |
| CN105862549A (en) * | 2016-04-15 | 2016-08-17 | 东南大学 | Biologicalpurificationretention belt for sponge-type city municipal road and construction method of biologicalpurificationretention belt |
| CN206971039U (en) * | 2017-06-13 | 2018-02-06 | 重庆中设工程设计股份有限公司 | Draining, road sidewalk greening's band structure of permeable combination |
| CN207727714U (en) * | 2017-12-06 | 2018-08-14 | 中国一冶集团有限公司 | Sponge urban ecology filtration system |
| CN110016952A (en) * | 2018-01-09 | 2019-07-16 | 深圳市交运工程集团有限公司 | A kind of greenbelt Demonstration for Ecological Sanitation structure |
| CN110042724A (en) * | 2019-04-30 | 2019-07-23 | 中国市政工程西北设计研究院有限公司 | Collapsible Loess District road sponge facility rainwater catchment system and exhaust system |
| CN111042293A (en) * | 2019-11-21 | 2020-04-21 | 江苏永联精筑建设集团有限公司 | Construction process of road central green belt seepage-proofing drainage structure |
-
2022
- 2022-07-15 CN CN202210830948.4A patent/CN115306009A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6748698B1 (en) * | 1998-05-16 | 2004-06-15 | Coventry University | Water flow control system |
| CN105862549A (en) * | 2016-04-15 | 2016-08-17 | 东南大学 | Biologicalpurificationretention belt for sponge-type city municipal road and construction method of biologicalpurificationretention belt |
| CN206971039U (en) * | 2017-06-13 | 2018-02-06 | 重庆中设工程设计股份有限公司 | Draining, road sidewalk greening's band structure of permeable combination |
| CN207727714U (en) * | 2017-12-06 | 2018-08-14 | 中国一冶集团有限公司 | Sponge urban ecology filtration system |
| CN110016952A (en) * | 2018-01-09 | 2019-07-16 | 深圳市交运工程集团有限公司 | A kind of greenbelt Demonstration for Ecological Sanitation structure |
| CN110042724A (en) * | 2019-04-30 | 2019-07-23 | 中国市政工程西北设计研究院有限公司 | Collapsible Loess District road sponge facility rainwater catchment system and exhaust system |
| CN111042293A (en) * | 2019-11-21 | 2020-04-21 | 江苏永联精筑建设集团有限公司 | Construction process of road central green belt seepage-proofing drainage structure |
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