CN109680576A - A kind of hard road with modified permeable structure - Google Patents
A kind of hard road with modified permeable structure Download PDFInfo
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- CN109680576A CN109680576A CN201910068641.3A CN201910068641A CN109680576A CN 109680576 A CN109680576 A CN 109680576A CN 201910068641 A CN201910068641 A CN 201910068641A CN 109680576 A CN109680576 A CN 109680576A
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 239000002689 soil Substances 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 10
- 239000010438 granite Substances 0.000 claims description 9
- 239000011083 cement mortar Substances 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
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- 238000002386 leaching Methods 0.000 claims description 3
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- 230000008595 infiltration Effects 0.000 description 11
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- 239000011159 matrix material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of hard roads with modified permeable structure, are related to permeable technical field of road construction, comprising: hard surfacing is mated formation, top surface inclination arrangement；It catchments module, is arranged in the hard surfacing and mats formation compared with downside, collect and exclude rainwater；Permeable layer is laid on the lower section that the hard surfacing is mated formation；Permeable pipeline guides the water in module of catchmenting into permeable layer.The present invention is by the way of first collecting and permeating afterwards, and bulky grain pollutant in effectively catching water has original or even more outstanding water permeable ability compared to traditional permeable pavement；Bottom aquifer has certain consumption effect, removes and handles most surface gathered water, effectively prevent the generation of urban waterlogging disaster；Maintenance cost is lower and cleaning is convenient, overcomes traditional permeable pavement well and easily blocks, cleans troublesome drawback.
Description
Technical field
The present invention relates to permeable technical field of road construction, in particular to a kind of hard road with modified permeable structure
Road.
Background technique
With the development of the city, hard is mated formation as most important region tile work road surface other than building and periphery greening,
The phenomenon that use of large area, causes rainwash to increase, and surface gathered water situation is severe, and urban waterlogging and non-point pollution take place frequently
The concern of height is obtained.Since " sponge city " concept proposes, permeable pavement system is important as one kind of the theory
Source control technology, is widely used in engineering practice.
Permeable pavement at this stage is a kind of Deck pavement with full impregnated water or half permeable structure road surface.Generally recognize
For structure is followed successively by four surface layer, base, underlayment, bed course parts from top to bottom.It is different according to the main material of surface layer,
It is broadly divided into the flooring modes such as water-permeable brick, pervious asphalt, pervious concrete.Permeable pavement has good water penetration, water conservation
Property and aeration, studies have shown that permeable pavement system can effectively meet " infiltration " and " storage " in " sponge city " concept
It is required that the confluence of rainwater infiltrated, slow down rainwater can be accelerated, the flow of city overland runoff is directly reduced, and makes underground
Water is supplemented in time, to effectively prevent urban waterlogging, surface subsidence and underground water pollution.It is a large amount of real
Test statistics indicate that permeable pavement have the function of absorption etc., absorb, storage rainwash during can effectively retain dirt
Object is contaminated, the concentration of pollutant in runoff is reduced significantly, reaches the preliminary purification requirement of surface gathered water.
The patent document of example Publication No. CN 205636402U discloses a kind of anti-pavement deflection formula porous pavement, under
It is described to being above successively arranged soil matrix layer, bed course, graded broken stone layer, ATPB porous base course, pervious asphalt face, pervious asphalt surface layer
Soil matrix layer is inorganic colloid methoder underlayment, and the bed course is sand bedding course, and the graded broken stone layer is stablized for honeycombed cement
Gravelly stabilized with inorganic binder crushed rock base course, the ATPB porous base course is big gap Asphalt Stabilized Macadam, described
Bituminous grout face is pervious asphalt concrete, and the soil underlayment uses subgrade soils sandy soil cohesive soil, the pervious asphalt surface layer
Using shape be mostly right angle, obtuse angle ceramic fragment as antiskid aggregate.Above-mentioned road surface adapts to various adverse weather conditions, tool
There is good waterproof performance, and can effectively prevent rainwater and penetrate into cement pavement, prevents the coagulating cement of cement pavement premature breakdown
Soil surface waterproof construction.
But permeable pavement, while gradually apply to some large public buildings in city, problem also gradually appears
It comes out.While with good water penetration, mechanical property mats formation to compare compared with ordinary rigid to be declined permeable pavement,
Low-intensity causes permeable pavement to may be only available for the place of the low load such as pavement, parking lot；Due to permeable pavement at this stage
Maintenance technology is still immature, main or based on being rinsed with giant, and permeable pavement road surface is caused to be easy by impurity such as dusts
Blocking has certain time limit using the time, and water permeability can have and significantly decrease with the extension of time.In general
Permeable pavement at this stage have easily blocking, durability is poor, the scope of application is small, cost is relatively high, lack systematicness recognize and
The problems such as systematic specification.
Summary of the invention
The present invention provides a kind of hard roads with modified permeable structure, in the intensity for remaining conventional rigid road
While with hardness, solves the problems, such as its bad hydraulic permeability, is also easy to produce surface gathered water, and improve permeable paving to a certain extent
Fill the cleaning of road surface difficulty, susceptible to plugging situation.
A kind of hard road with modified permeable structure, comprising:
Hard surfacing is mated formation, top surface inclination arrangement；
It catchments module, is arranged in the hard surfacing and mats formation compared with downside, collect and exclude rainwater；
Further include:
Permeable layer is laid on the lower section that the hard surfacing is mated formation；
Permeable pipeline guides the water in module of catchmenting into permeable layer.
The present invention is laid with water-permeable pipe road under conventional rigid road, after rainwater on road surface is via the module collection that catchments, by blind
It is infiltered under pipe and infiltrates water layer, collect discharge to filter and be detained rainwater, then through bottom discharge ditch.
For the ease of being installed, it is preferred that the permeable pipeline is blind pipe.Blind pipe is preferred as seeping water in collection casting
Material, with high surface infiltration ability and internal water passing capacity, and compression strength is high, the energy with fabulous adaptation deformation
Power；With good chemical inertness, never degrade in Tu Zhongshui, anti-aging, uvioresistant, high temperature resistant, corrosion-resistant, Neng Goubao
It is unchanged to hold permanent material；Plastics blind pipe is light-weight, easily cuts out, construction and installation convenience, and the filter membrane of blind pipe can be according to difference
Soil property situation select, sufficiently meet the different demands of various engineerings, and avoid the single uneconomic disadvantage of filter membrane product；Relatively
In other pipelines and equipment, under conditions of identical integrate draining effect, the fee of material of plastics blind pipe, traffic expense, construction cost are all
More economical, overall cost is lower.Meanwhile perforated plastic diversion pipe can be used, rigid water-permeable pipe seeps drain bar and row's soakaway trench
Deng other row's soakaway trench materials, there is certain compression strength and the requirement of steady seepage can be reached.
In order to improve permeable effect and permeable uniformity, it is preferred that the vertical hard road extension side of the blind pipe
To and length cover the road width.
In order to improve permeable effect, it is preferred that the blind pipe is using perforation diversion pipe, and percent opening is 3%~10%, perforation
10 mesh~30 mesh nylon leaching net is wrapped up outside diversion pipe.The sustainable use and permeability for guaranteeing blind pipe are attained by reality
The requirement of utilization.
Blind pipe uses the perforation diversion pipe of De60~De100, and the spacing distance of adjacent perforated diversion pipe is 1500~
3000mm。
Permeable layer is the requirement for realizing road rain water " infiltration " and " storage " in " sponge city ", it is preferred that the permeable layer packet
Include seepage of water soil horizon.Seepage of water soil facilitates materials, i.e. sandy soil, infiltration coefficient > 5 × 10-6M/s guarantees that rainwater can be suitable
Benefit is lower to seep recharge of groundwater, and has certain crown_interception to the bulky grain pollutant in water.
In order to guarantee the stability of roadbed, it is preferred that the permeable layer further includes being located above seepage of water soil horizon to be used for
The blotter of the permeable pipeline is installed.
In order to improve filtering and water storage effect, it is preferred that the permeable layer further includes being located at below seepage of water soil horizon
Drainage layer.After road rain water passes through gutter prefiltration, then via being infiltered under blind pipe into soil, puts aside and be discharged in drainage layer, mention
The high SS removal rate of rainwater.The porosity of drainage layer is 35%~45%, is generally laid with using rubble and haydite, effective grain size
Greater than 80%, to guarantee that it, with certain water storage, while improving SS removal rate, the pollutant in rainwater is effectively removed.
Preferably, secondary filtration layer is equipped between the seepage of water soil horizon and drainage layer.Secondary filtration layer is to penetrating into
The rainwash for entering aquifer carries out secondary filter, avoids the gap of impurity blocking metalling, influences the water storage efficiency of aquifer.
Secondary filtration layer mostly uses geotextiles.
In order to guarantee the intensity of hard surfacing, it is preferred that the hard surfacing, which is mated formation, includes:
Granite road surface, top surface tilt outward；
Dry cement mortar is located at below the granite road surface；
Concrete cushion is located at below the dry cement mortar.
Addition concrete cushion and dry cement mortar above metalling, surface are laid with sesame ash granite bush-hammered face,
Using the paving mode on conventional rigid road surface, guarantee that the permeable facility of modified road can satisfy the hardness of conventional rigid road and strong
Degree demand.
The effect for module of catchmenting be collect rainwater, it is various informative, in order to facilitate the installation of with improve dmp filter effect, preferably
, the module of catchmenting includes:
Gutter, opening are located at the hard surfacing and mat formation compared with the lower section of downside；
Drainage ditch cover plate covers the opening in gutter and is equipped with water hole；
Filter layer is arranged in above the drainage ditch cover plate；
Goose soft rock layer, is laid on the filter layer.
Of the invention focuses on making conventional rigid road surface to can have good permeable effect and backwater effect, in hard
Certain gradient is remained in the process of deployment on road surface, and gutter is set at descending edge, is laid at the top of gutter
Geotextiles and cobblestone avoid the blocking and damage of gutter and follow up device for intercepting the large granular impurity in initial rainwater
It is bad；It pastes gutter bottom and blind pipe is set, and be embedded in metalling, rainwater enters blind pipe by broken after gutter is filtered
Viscous soil horizon is penetrated under rock layers, metalling has good support and protective effect to blind pipe, and in addition metalling has biggish
Porosity is more advantageous to the lower infiltration of rainwater in blind pipe.Rainwater is filtered after penetrating viscous soil horizon by geotextiles, into rubble drainage
Layer and haydite reservoir bed, rainwater-collecting drain into specified region by gutter again after being detained, carry out rainwater recycle and secondary use.
Beneficial effects of the present invention:
(1) present invention is by the way of first collecting and permeating afterwards, the bulky grain pollutant in effectively catching water, compared to tradition
Permeable pavement has original or even more outstanding water permeable ability.
(2) bottom aquifer of the present invention has certain consumption effect, removes and handles most surface gathered water, effectively anti-
The only generation of urban waterlogging disaster.SS removal rate can be improved simultaneously, effectively removes the pollutant in rainwater.
(3) maintenance cost of the present invention is lower and cleaning is convenient, overcomes traditional permeable pavement well and easily blocks, cleaning fiber crops
Tired drawback.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the hard road with modified permeable structure of the invention.
Fig. 2 is the planar structure schematic diagram of the hard road with modified permeable structure of the invention.
Wherein, 1, shed deckhead rigid course；2, drainage layer；3, geotextiles；4, seepage of water soil horizon；5, rubble pad
Layer；6, blind pipe；7, concrete cushion；8, dry cement mortar；9, granite road surface；10, gutter；11, drainage ditch cover plate；
12, geotextiles；13, cobblestone.
Specific embodiment
As illustrated in fig. 1 and 2, the hard road for having modified permeable structure in the present embodiment includes: shed deckhead rigid protective
Layer 1, drainage layer 2, geotextiles 3, seepage of water soil horizon 4, blotter 5, blind pipe 6, concrete cushion 7, dry cement mortar
8, granite road surface 9, gutter 10, drainage ditch cover plate 11, geotextiles 12 and cobblestone 13.
Water flow gradually flows to gutter 10, drainage ditch cover plate by the small gradient in granite road surface 9 when road surface is gathered
Geotextiles 12 and cobblestone 13 are equipped on 11, filtering of the large granular impurity by cobblestone 13 and geotextiles 12 is removed in ponding
Enter gutter 10 afterwards, blotter 5 is gradually penetrated by the several blind pipe 6 in 10 bottom of gutter, to penetrate into down
Seepage of water soil horizon 4, the above-mentioned drain function for the present embodiment, meets the requirement of sponge city " infiltration ".
Ponding is detained savings in drainage layer 2 after filtering again of the surface gathered water by seepage of water soil horizon 4 and geotextiles 3
In, collect finally by bottom discharge ditch, effectively reaches the discharge effect of regulating and storing of rainwater.
The present embodiment sets the drainage of porosity 35%-45% or so on fluid-tight 1 upper berth of shed deckhead rigid course
Layer 2, drainage layer 2 use rubble and haydite layer, and effective grain size is greater than 80%, to guarantee that it, with certain water storage, is mentioned simultaneously
High SS removal rate, effectively removes the pollutant in rainwater.Drainage layer 2 has water storage function, alternatively referred to as aquifer.
It is equipped with geotextiles 3 on aquifer, secondary filter is carried out to the rainwash for penetrating into aquifer, avoids impurity
The gap for blocking metalling, influences the water storage efficiency of aquifer.
Seepage of water soil horizon 4 uses seepage of water soil, i.e. sandy soil, infiltration coefficient > 5 × 10-6M/s guarantees that rainwater can be with
It is smoothly lower to seep recharge of groundwater, and have certain crown_interception to the bulky grain pollutant in water.
It is laid with blotter 5 above seepage of water soil horizon 4, guarantees the stability of roadbed, and be embedded to blind pipe in metalling 5
6, blind pipe 6 is wrapped up 18 mesh nylon leaching nets, is guaranteed holding for blind pipe 6 using perforation diversion pipe, percent opening 5%, diversion pipe outside
Continuous usability and permeability are attained by the requirement of practice.
For blind pipe 6 using the perforation diversion pipe of De75, the spacing distance of adjacent perforated diversion pipe is 2000mm.
Concrete cushion 7 and dry cement mortar 8 are added above blotter 5, surface is laid with sesame ash granite litchi
Branch face guarantees that the permeable facility of modified road can satisfy the hard of conventional rigid road using the paving mode on conventional rigid road surface
Degree and strength demand.
Certain this programme focuses on making conventional rigid road surface to can have good permeable effect and backwater effect, has
Body is embodied as this programme and remains certain gradient in the process of deployment of hard surfacing, and is arranged at descending edge and arranges
Ditch 10 is laid with geotextiles 12 at the top of gutter 10 and cobblestone 13 is avoided for intercepting the large granular impurity in initial rainwater
The blocking and damage of gutter 10 and follow up device；It pastes 10 bottom of gutter and blind pipe 6 is set, and blind pipe 6 is embedded in rubble pad
In layer 5, rainwater enters blind pipe 6 after gutter 10 is filtered and penetrates into seepage of water soil horizon 4, blotter 5 by blotter 5 is lower
There is good support and protective effect to blind pipe, in addition blotter 5 has biggish porosity, is more advantageous to blind pipe moderate rain
The lower infiltration of water.Rainwater is filtered after penetrating seepage of water soil horizon 4 by geotextiles 3, into drainage layer 2, after rainwater-collecting delay again
Specified region is drained by gutter, carries out rainwater recycle and secondary use.
To obtain reliable test data, flowmeter is set in EXIT POINT, with different water flows and flowing-out time mould
Intend different rainfall and rainfall duration, observe water discharging time and water yield under control experiment in inspection shaft, to determine two kinds
The seepage velocity and permeable amount of permeable pavement compare.
Three are provided at the position different buried depth of 6 end of blind pipe (one end far from gutter 10) of the present embodiment to take
Sample mouth, 1# are located in 6 end metalling of blind pipe, and 2# is located at blotter 5 and permeable soil layer 4 immediately below 6 end of blind pipe and hands over
At boundary, 3# is located at 4 middle part of permeable soil layer immediately below 6 end of blind pipe, the water quality of the infiltration water by observing different sample taps
Situation, i.e., the performance that the parameters such as ss removal rate and water content of soil obtain porous pavement compare.To achieve the purpose that control experiment,
In the identical buried depth position in 10 side of the gutter of the present embodiment, two groups of sample taps, observation 6 starting point of blind pipe and end earth's surface are set
The infiltration of runoff compares.It can also be also provided with corresponding sample tap in traditional permeable pavement side, it can with ensure control experiment
By property.
A piece PVC diversion pipe is installed, water flow enters along pipeline in test in 2 top seepage of water soil horizon 4 of drainage layer
Screened well, is equipped with the haydite packet and metalling of nylon wire outsourcing in well, water flow by filtering infiltration well both sides rubble
In drainage layer and haydite layer, when water flow reaches some strength, the aquifer of Experimental Establishment reaches full load condition, rich water flow
Aquifer can be diffused out, water outlet is discharged by diversion pipe and is extracted out again by water pump, test of many times can be calculated aquifer water storage
The relevant parameter of energy, is widely used in the real life place of different demands.
The present embodiment in practical applications, can be used as traditional permeable pavement and afforest on pavement, square or building periphery
Mat formation and wait one of regions application supplement measure, hardness and strength are mated formation compared to tradition to be reinforced；Utilize haydite packet
The water-holding capacity of adsorption filtration effect and metalling reaches the effective discharge and consumption of rainwater.
In addition, being filtered three times in the present embodiment operational process, reach to the suspended particulate (SS) in rainfall runoff
Effectively catching simultaneously carries out preliminary purification, to reduce pollution of the urban rainwater drainage system End flow to receiving water body.
Relative to traditional permeable pavement, the present embodiment can reduce the manpower and material resources of Street surface cleaning maintenance, increase road surface
Durability and service life reduce use cost and maintenance cost, will become an important behave in " sponge city " concept.
In conclusion the present embodiment is laid with blind pipe 6 under conventional rigid road, rainwater on road surface is collected via gutter 10
Afterwards, by being infiltered under blind pipe 6 into soil, it is equipped with drainage layer 2 below seepage of water soil horizon 4, filtering and be detained rainwater, then
Collect discharge through bottom discharge ditch, while the intensity and hardness for remaining conventional rigid road, solve its bad hydraulic permeability,
The problem of being also easy to produce surface gathered water, and the cleaning of permeable pavement road surface difficulty, susceptible to plugging situation are improved to a certain extent, simultaneously
After road rain water passes through gutter prefiltration, then via being infiltered under blind pipe into soil, in haydite layer and metalling savings discharge, mention
The high SS removal rate of rainwater.
Claims (10)
1. a kind of hard road with modified permeable structure, comprising:
Hard surfacing is mated formation, top surface inclination arrangement；
It catchments module, is arranged in the hard surfacing and mats formation compared with downside, collect and exclude rainwater；
It is characterized by further comprising:
Permeable layer is laid on the lower section that the hard surfacing is mated formation；
Permeable pipeline guides the water in module of catchmenting into permeable layer.
2. the hard road according to claim 1 with modified permeable structure, which is characterized in that the permeable pipeline is
Blind pipe.
3. the hard road according to claim 2 with modified permeable structure, which is characterized in that the vertical institute of the blind pipe
It states hard road extending direction and length covers the road width.
4. the hard road according to claim 2 with modified permeable structure, which is characterized in that the blind pipe is used and worn
Hole diversion pipe, percent opening are 3%~10%, wrap up 10 mesh~30 mesh nylon leaching net outside perforation diversion pipe.
5. the hard road according to claim 1 with modified permeable structure, which is characterized in that the permeable layer includes
Seepage of water soil horizon.
6. the hard road according to claim 5 with modified permeable structure, which is characterized in that the permeable layer also wraps
It includes and is located above seepage of water soil horizon for installing the blotter of the permeable pipeline.
7. the hard road according to claim 6 with modified permeable structure, which is characterized in that the permeable layer also wraps
Include the drainage layer being located at below seepage of water soil horizon.
8. the hard road according to claim 6 with modified permeable structure, which is characterized in that the seepage of water soil
Secondary filtration layer is equipped between layer and drainage layer.
9. the hard road according to claim 1 with modified permeable structure, which is characterized in that the hard surfacing paving
Dress includes:
Granite road surface, top surface tilt outward；
Dry cement mortar is located at below the granite road surface；
Concrete cushion is located at below the dry cement mortar.
10. the hard road according to claim 1 with modified permeable structure, which is characterized in that the module of catchmenting
Include:
Gutter, opening, which is located at, mats formation in the hard surfacing compared with the lower section of downside；
Drainage ditch cover plate, covering the opening in gutter, there is no water holes；
Filter layer is arranged in above the drainage ditch cover plate；
Goose soft rock layer, is laid on the filter layer.
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