CN209836713U - Hard road with modified permeable structure - Google Patents
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- CN209836713U CN209836713U CN201920125707.3U CN201920125707U CN209836713U CN 209836713 U CN209836713 U CN 209836713U CN 201920125707 U CN201920125707 U CN 201920125707U CN 209836713 U CN209836713 U CN 209836713U
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Landscapes
- Road Paving Structures (AREA)
- Sewage (AREA)
Abstract
The utility model discloses a stereoplasm road with structure of permeating water of modification relates to permeable road construction technical field, include: paving a hard pavement, wherein the top surface is obliquely arranged; the water collecting module is arranged at the lower side of the hard pavement and used for collecting and draining rainwater; the water seepage layer is paved below the hard pavement; and the water permeating pipeline guides water in the water collecting module to the water permeating layer. The utility model adopts the mode of collecting firstly and then permeating, effectively intercepts large-particle pollutants in water, and has better water permeability compared with the traditional water permeable paving; the bottom water storage layer has a certain absorption function, most of the surface water is removed and treated, and urban waterlogging disasters are effectively prevented; maintenance cost is lower and the clearance is convenient, fine overcome the tradition easily block up of mating formation of permeating water, rinse the trouble drawback.
Description
Technical Field
The utility model relates to a permeable road construction technical field, in particular to stereoplasm road with structure of permeating water of modification.
Background
With the development of cities, hard pavement is used as a brick pavement in the most important areas except buildings and peripheral greening, surface runoff is increased due to large-area use, the condition of surface water is severe, and urban waterlogging and non-point source pollution frequently occur. Since the concept of sponge city is proposed, the permeable pavement system is used as an important source control technology of the concept and is widely applied to engineering practice.
The existing stage of permeable pavement is a pavement system with a full permeable or semi-permeable structure pavement. The structure of the composite material is considered to be a surface layer, a base layer, a bottom layer and a cushion layer from top to bottom in sequence. The paving modes can be roughly divided into permeable bricks, permeable asphalt, permeable concrete and the like according to different main materials of the surface layer. The permeable pavement has good water permeability, water retention and air permeability, and researches show that the permeable pavement system can effectively meet the requirements of seepage and storage in the concept of sponge city, can accelerate the infiltration of rainwater and slow down the confluence of the rainwater, directly reduce the flow of surface runoff of the city, and make groundwater timely supplemented, thereby effectively preventing the occurrence of conditions such as urban waterlogging, ground settlement and groundwater pollution. A large amount of experimental data show that permeable pavement has functions such as absorption, can effectually hold back the pollutant in the in-process of absorption, storage surface runoff, show the concentration that reduces the pollutant in the runoff, reach the preliminary purification requirement of surface ponding.
The patent document with the example publication number of CN 205636402U discloses an anti-road surface bending sinking type permeable pavement, from the bottom up is equipped with soil base layer, bed course, graded rubble layer, ATPB permeable base layer, permeable asphalt surface layer in proper order, soil base layer is inorganic binder stabilized soil subbase layer, the bed course is the sand cushion layer, graded rubble layer is the inorganic binder stabilized rubble base layer that porous cement stabilized rubble constitutes, ATPB permeable base layer is big space pitch stabilized rubble, permeable asphalt surface is permeable asphalt concrete, soil subbase layer adopts road bed soil sandy soil cohesive soil, permeable asphalt surface layer adopts the ceramic fragment that the appearance is mostly right angle, obtuse angle as anti-skidding aggregate. The road surface can adapt to various severe weather conditions, has good waterproof performance, can effectively prevent rainwater from permeating into the cement road surface, and prevents the cement concrete road surface waterproof structure from being prematurely damaged.
However, the permeable pavement is gradually applied to some large public buildings in cities, and the problems are gradually revealed. The mechanical property of the permeable pavement is reduced compared with that of the ordinary hard pavement while the permeable pavement has good water permeability, and the low strength leads the permeable pavement to be only suitable for places with low load, such as sidewalks, parking lots and the like; because the permeable pavement maintenance technology at the present stage is still immature, the high-pressure water gun is mainly used for washing, the permeable pavement is easily blocked by impurities such as dust, the service life of the permeable pavement has a certain age, and the water permeability can be obviously reduced along with the prolonging of the service life. Generally, the existing water permeable pavement has the problems of easy blockage, poor durability, small application range, relatively high manufacturing cost, lack of systematic cognition and systematic specification and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stereoplasm road with structure of permeating water of modification when having remain traditional stereoplasm road's intensity and hardness, has solved its water permeability poor, the easy problem that produces surface gathered water to improve the difficult washing of the road surface of mating formation of permeating water, the easy condition of blockking up to a certain extent.
A rigid roadway with a modified water permeable structure comprising:
paving a hard pavement, wherein the top surface is obliquely arranged;
the water collecting module is arranged at the lower side of the hard pavement and used for collecting and draining rainwater;
further comprising:
the water seepage layer is paved below the hard pavement;
and the water permeating pipeline guides water in the water collecting module to the water permeating layer.
The utility model discloses lay permeable pipe way under traditional stereoplasm road, the road surface rainwater collects the back via the module that catchments, oozes down through the blind pipe and gets into the permeable layer for filter and be detained the rainwater, collect the discharge through the bottom escape canal again.
For convenience of installation, the water permeable pipeline is preferably a blind pipe. The blind pipe is used as a preferable material for water seepage in the collected and discharged soil, has extremely high surface water seepage capability and internal water communication capability, has high compressive strength and has extremely good capability of adapting to deformation; the material has good chemical inertia, never degrades in water in soil, resists aging, ultraviolet rays, high temperature and corrosion, and can keep permanent materials unchanged; the plastic blind pipe has light weight, easy cutting and convenient construction and installation, and the filter membrane of the blind pipe can be selected according to different soil conditions, thereby fully meeting different requirements of various projects and avoiding the defect that the filter membrane product is single and uneconomical; compared with other pipelines and equipment, the plastic blind pipe has the advantages that under the condition of the same water collecting and draining effect, the material cost, the transportation cost and the construction cost are all more economic, and the comprehensive cost is lower. Meanwhile, a perforated plastic flow guide pipe, a hard permeable pipe, a permeable drainage plate, a permeable drainage pipe and other permeable drainage pipes can be adopted, and the pressure resistance is certain and the requirement of stable permeation can be met.
In order to improve the water permeation effect and the water permeation uniformity, the blind pipe is preferably perpendicular to the extension direction of the hard road and has a length covering the width of the road.
In order to improve the water permeability effect, preferably, the blind pipe adopts a perforated flow guide pipe, the aperture ratio is 3% -10%, and a nylon filter screen with 10-30 meshes is wrapped outside the perforated flow guide pipe. The sustainable utilization and permeability of the blind pipe can meet the requirements of practical application.
The blind pipe adopts a De 60-De 100 perforated flow guide pipe, and the spacing distance between every two adjacent perforated flow guide pipes is 1500-3000 mm.
The water seepage layer meets the requirements of road rainwater seepage and storage in the sponge city, and preferably comprises a water seepage soil layer. The water-permeable soil is convenient to obtain, namely sandy soil and permeability coefficient>5×10-6m/s, ensuring that rainwater can smoothly infiltrate and supplement underground water, and having certain interception effect on large-particle pollutants in water.
In order to ensure the stability of the roadbed, the water seepage layer preferably further comprises a gravel cushion layer which is positioned above the water seepage soil layer and is used for installing the water seepage pipeline.
In order to improve the filtering and water-retaining effect, it is preferable that the water-permeable layer further includes a water-permeable layer located below the water-permeable soil layer. After the road rainwater is primarily filtered by the drainage ditch, the road rainwater enters soil through the infiltration of the blind pipe, is accumulated and discharged in the water filtering layer, and the SS removal rate of the rainwater is improved. The porosity of the water filtering layer is 35-45%, the water filtering layer is generally paved by adopting broken stones and ceramic particles, and the effective particle size is larger than 80% so as to ensure that the water filtering layer has certain water storage capacity, improve the SS removal rate and effectively remove pollutants in rainwater.
Preferably, a secondary filter layer is arranged between the water-permeable soil layer and the water-filtering layer. The secondary filter layer carries out the secondary to the surface runoff that permeates into the water storage layer and filters, avoids impurity to block up the space of metalling, influences the water storage efficiency of water storage layer. The secondary filter layer is made of geotextile.
In order to ensure the strength of the hard road surface, it is preferable that the hard road surface comprises:
a granite pavement, the top surface of which inclines outwards;
the dry and hard cement mortar is positioned below the granite pavement;
and the concrete cushion layer is positioned below the dry and hard cement mortar.
Concrete cushion and dry and hard cement mortar are added above the gravel layer, sesame ash granite litchi surface is laid on the surface, and the modified pavement permeable facility can meet the hardness and strength requirements of the traditional hard road by adopting the laying mode of the traditional hard road.
The effect of module that catchments is the collection rainwater, and the form is various, for the convenience installation with improve rainwater filter effect, preferred, the module that catchments includes:
a drainage ditch having an opening located below a lower side of the hard pavement;
a drainage ditch cover plate which covers the opening of the drainage ditch and is provided with water through holes;
a filter layer disposed above the drain cover plate;
and the goose soft stone layer is laid on the filter layer.
The utility model is characterized in that the traditional hard pavement can have good water permeable effect and water retention effect, a certain gradient of slope is kept in the laying process of the hard pavement, a drainage ditch is arranged at the edge of the downhill slope, and geotextile and cobblestones are laid at the top of the drainage ditch for intercepting large-particle impurities in the initial rainwater and avoiding the blockage and damage of the drainage ditch and subsequent devices; paste escape canal bottom and set up the blind pipe to bury it underground in the metalling, the rainwater filters the back through the escape canal and gets into the blind pipe and ooze into cohesive soil layer by the metalling down, and the metalling has good bearing and guard action to the blind pipe, and the metalling has great porosity in addition, more is favorable to the infiltration of rainwater in the blind pipe. Rainwater permeates the viscous soil layer and is filtered by the geotextile, enters the gravel water filtering layer and the ceramsite water storage layer, is collected and retained and then is discharged to a designated area by the drainage ditch, and is recycled and reutilized.
The utility model has the advantages that:
(1) the utility model discloses a mode of collecting earlier back infiltration effectively holds back the large granule pollutant of aquatic, compares in the tradition permeate water and paves the ability of permeating water that is not popular even more outstanding.
(2) The utility model discloses bottom water-storage layer has certain absorption effect, clears away most surface gathered water of handling, effectively prevents urban waterlogging calamity's emergence. Meanwhile, the removal rate of SS can be improved, and pollutants in rainwater can be effectively removed.
(3) The utility model discloses the maintenance cost is lower and the clearance is convenient, fine overcome the tradition permeate water and mat formation easy jam, rinse the trouble drawback.
Drawings
Fig. 1 is a schematic view of the sectional structure of the hard road with the modified permeable structure of the present invention.
Fig. 2 is a schematic plane structure diagram of the hard road with the modified permeable structure of the present invention.
1, a rigid protective layer of a garage top plate; 2. filtering a water layer; 3. geotextile; 4. a water-permeable soil layer; 5. a gravel cushion layer; 6. a blind pipe; 7. a concrete cushion; 8. dry and hard cement mortar; 9. granite pavement; 10. a drainage ditch; 11. a drain cover plate; 12. geotextile; 13. and (4) cobblestones.
Detailed Description
As shown in fig. 1 and 2, the hard road having the modified water permeable structure in the present embodiment includes: the garage comprises a garage roof rigid protective layer 1, a water filtering layer 2, geotextile 3, a water permeability soil layer 4, a broken stone cushion layer 5, a blind pipe 6, a concrete cushion layer 7, dry and hard cement mortar 8, a granite pavement 9, a drainage ditch 10, a drainage ditch cover plate 11, geotextile 12 and cobblestones 13.
Rivers are when the road surface is gathered, through the small slope of granite road surface 9 flow to escape canal 10 gradually, 11 upper berths of escape canal apron are equipped with geotechnological cloth 12 and cobblestone 13, large granule impurity gets into escape canal 10 after cobblestone 13 and geotechnological cloth 12's filtration is clear away in the ponding, the blind pipe 6 through the several roots in escape canal 10 bottom progressively infiltrates rubble bed course 5, thereby down infiltration gets into infiltration nature soil horizon 4, the above-mentioned drainage function for this embodiment, accord with the requirement that sponge city "oozes".
Surface gathered water is detained and is saved in drainage bed 2 after the secondary filtration of infiltration nature soil horizon 4 and geotechnological cloth 3, collects through the bottom escape canal at last, effectively reaches the regulation of rainwater and discharges the effect.
In the embodiment, the water filtering layer 2 with the porosity of about 35-45% is paved on the waterproof garage roof rigid protective layer 1, the water filtering layer 2 adopts a gravel layer and a ceramsite layer, and the effective particle size is larger than 80% so as to ensure that the water filtering layer has certain water storage capacity, improve the SS removal rate and effectively remove pollutants in rainwater. The water filtering layer 2 has a water storage function and can also be called as an aquifer.
The geotechnical cloth 3 is laid on the water storage layer, and secondary filtration is carried out on surface runoff permeating into the water storage layer, so that the water storage efficiency of the water storage layer is prevented from being influenced by impurities blocking gaps of the gravel layer.
The water permeability soil layer 4 adopts water permeability soil, i.e. sandy soil, and permeability coefficient>5×10-6m/s, ensuring that rainwater can smoothly infiltrate and supplement underground water, and having certain interception effect on large-particle pollutants in water.
Broken stone bed course 5 is laid to 4 tops on water permeability soil horizon, guarantees the stability of road bed to bury blind pipe 6 in the gravel layer 5, blind pipe 6 adopts the perforation honeycomb duct, and the percent opening is 5%, and 18 mesh nylon filter screens are wrapped up to the honeycomb duct outside, guarantee that the sustainable utilization nature and the permeability of blind pipe 6 can both reach actual use's requirement.
The blind pipe 6 adopts a De75 perforated flow guide pipe, and the interval distance between adjacent perforated flow guide pipes is 2000 mm.
Concrete cushion 7 and dry and hard cement mortar 8 are added to 5 tops of rubble bed course, and sesame ash granite litchi surface is laid on the surface, adopts the mode of laying on traditional hard road surface, guarantees that modified road surface facility of permeating water can satisfy the hardness and the intensity demand of traditional hard road.
The scheme is characterized in that the traditional hard pavement has good water permeable effect and water retention effect, a certain gradient of slope is reserved in the paving process of the hard pavement, the drainage ditch 10 is arranged at the edge of the downhill slope, and the geotextile 12 and the cobblestones 13 are paved at the top of the drainage ditch 10 and used for intercepting large-particle impurities in initial rainwater and avoiding the blockage and damage of the drainage ditch 10 and subsequent devices; paste escape canal 10 bottom and set up blind pipe 6 to bury blind pipe 6 underground in rubble bed course 5, the rainwater filters the back through escape canal 10 and gets into blind pipe 6 and oozes infiltration nature soil horizon 4 by rubble bed course 5 down, and rubble bed course 5 has good bearing and guard action to the blind pipe, and rubble bed course 5 has great porosity in addition, more is favorable to the infiltration of rainwater in the blind pipe. Rainwater permeates the water permeability soil layer 4 and is filtered by the geotextile 3, enters the water filtering layer 2, is collected and detained and then is discharged to a designated area by the drainage ditch, and is recycled and reutilized.
In order to obtain reliable test data, a flowmeter is arranged at a water outlet point, different rainfall and rainfall duration are simulated according to different water outlet flow and outflow time, the water outlet time and the water outlet amount in the inspection well in a contrast experiment are observed, and the permeation speed and the water permeability of two permeable pavements are compared.
The different buried depth department in the position of the blind pipe 6 end (the one end of keeping away from escape canal 10) of this embodiment has set up three sample connection, 1# is located the terminal metalling of blind pipe 6, 2# is located the terminal directly below rubble bed course 5 of blind pipe 6 and the 4 junctures of permeability soil horizon, 3# is located the terminal directly below permeability soil horizon 4 middle parts of blind pipe 6, the quality of water condition through the infiltration water of observing different sample connections, ss clearance and soil body water content isoparametric obtain permeable pavement's performance comparison promptly. For the purpose of contrast experiment, two groups of sampling ports are arranged at the same embedded depth position on one side of the drainage ditch 10 of the embodiment, and the permeation contrast of the starting end of the blind pipe 6 and the terminal surface runoff is observed. And a corresponding sampling port can be arranged on one side of the traditional permeable pavement to ensure the reliability of the control experiment.
In the test, a PVC (polyvinyl chloride) guide pipe is installed in the water-permeable soil layer 4 above the water filtering layer 2, water flow enters the filtering well along a pipeline, a ceramsite bag and a gravel layer which are wrapped by a nylon net are paved in the well, the water flow penetrates into the gravel filtering layer and the ceramsite layer on two sides of the filtering well through filtering, when the water flow reaches certain strength, the water storage layer of the experimental facility reaches a full-load state, the abundant water flow can overflow out of the water storage layer, the water flow is discharged into a water outlet through the guide pipe and then is pumped out by a water pump, and relevant parameters of the water storage performance of the water storage layer can be obtained through multiple test calculations.
In practical application, the embodiment can be used as a supplementary measure of the traditional permeable pavement in the area application such as pavement, square or greening pavement around the building, and the hardness and the strength are enhanced compared with the traditional pavement; the effective drainage and absorption of rainwater are achieved by utilizing the adsorption and filtration functions of the ceramsite bag and the water storage capacity of the gravel layer.
In addition, this embodiment carries out the cubic to filter in the operation process, reaches the effective interception and the preliminary purification of suspended particles (SS) to in the rainwater runoff to reduce the pollution of city rainwater drainage system terminal play to receiving the water.
For traditional permeable pavement, this embodiment can reduce the manpower and materials that road surface washing maintained, increases the durability and the service life on road surface, reduces use cost and maintenance cost, will become an important measure in "sponge city" concept.
In conclusion, according to the embodiment, the blind pipe 6 is laid under the traditional hard road, after being collected by the drainage ditch 10, rainwater on the road surface seeps into soil through the blind pipe 6, the water filtering layer 2 is laid below the water seepage soil layer 4 and is used for filtering and retaining rainwater, and then the rainwater is collected and discharged through the bottom drainage ditch, so that the problems of poor water permeability and easiness in generation of water accumulation on the road surface are solved while the strength and hardness of the traditional hard road are kept, the conditions that the water seepage pavement is difficult to clean and easy to block are improved to a certain extent, meanwhile, after being primarily filtered by the drainage ditch, the rainwater on the road seeps into the soil through the blind pipe, is accumulated and discharged on the ceramsite layer and the gravel layer, and the SS removal rate of the rainwater is improved.
Claims (10)
1. A rigid roadway with a modified water permeable structure comprising:
paving a hard pavement, wherein the top surface is obliquely arranged;
the water collecting module is arranged at the lower side of the hard pavement and used for collecting and draining rainwater;
it is characterized by also comprising:
the water seepage layer is paved below the hard pavement;
and the water permeating pipeline guides water in the water collecting module to the water permeating layer.
2. The hard road with the modified water permeable structure according to claim 1, wherein the water permeable pipe is a blind pipe.
3. The rigid road with the modified water permeable structure according to claim 2, wherein the blind pipe is perpendicular to the extension direction of the rigid road and has a length covering the width of the rigid road.
4. The hard road with the modified water permeable structure according to claim 2, wherein the blind pipe is a perforated draft tube, the opening rate is 3% -10%, and a nylon filter screen with 10-30 meshes is wrapped outside the perforated draft tube.
5. The hard road with the modified permeable structure of claim 1, wherein the permeable layer comprises a permeable soil layer.
6. The hard road with the modified water permeable structure of claim 5, wherein the water permeable layer further comprises a gravel cushion layer above the water permeable soil layer for installing the water permeable pipeline.
7. The hard road with the modified water permeable structure of claim 6, wherein the water permeable layer further comprises a water filtration layer located below the water permeable soil layer.
8. The hard road with the modified water permeable structure according to claim 6, wherein a secondary filter layer is arranged between the water permeable soil layer and the water filtering layer.
9. The hard road with the modified water permeable structure according to claim 1, wherein the hard pavement comprises:
a granite pavement, the top surface of which inclines outwards;
the dry and hard cement mortar is positioned below the granite pavement;
and the concrete cushion layer is positioned below the dry and hard cement mortar.
10. The hard road with modified water permeable structure of claim 1, wherein the water collection module comprises:
a drainage ditch having an opening located below a lower side of the hard road surface pavement;
the drainage ditch cover plate covers the opening of the drainage ditch and is not provided with water through holes;
a filter layer disposed above the drain cover plate;
and the goose soft stone layer is laid on the filter layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920125707.3U CN209836713U (en) | 2019-01-24 | 2019-01-24 | Hard road with modified permeable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920125707.3U CN209836713U (en) | 2019-01-24 | 2019-01-24 | Hard road with modified permeable structure |
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| Publication Number | Publication Date |
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| CN209836713U true CN209836713U (en) | 2019-12-24 |
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| CN201920125707.3U Expired - Fee Related CN209836713U (en) | 2019-01-24 | 2019-01-24 | Hard road with modified permeable structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680576A (en) * | 2019-01-24 | 2019-04-26 | 浙江大学建筑设计研究院有限公司 | A kind of hard road with modified permeable structure |
| CN113006236A (en) * | 2021-03-16 | 2021-06-22 | 浙江壹禾唐市政景观工程有限公司 | Sponge city system and preparation method thereof |
-
2019
- 2019-01-24 CN CN201920125707.3U patent/CN209836713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680576A (en) * | 2019-01-24 | 2019-04-26 | 浙江大学建筑设计研究院有限公司 | A kind of hard road with modified permeable structure |
| CN113006236A (en) * | 2021-03-16 | 2021-06-22 | 浙江壹禾唐市政景观工程有限公司 | Sponge city system and preparation method thereof |
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Granted publication date: 20191224 |