A kind of sponge urban road rain infiltration system and construction method thereof
Technical field
The present invention relates to a kind of sponge urban road rain infiltration system and construction method thereof.
Background technology
Increasing year by year along with waterproof ground, city in urban construction, the run-off of rainwater is also increasing year by year.This
Not only increase the weight of the pressure of sewerage system, destroyed urban ecology, also waste the rainwater resource of preciousness simultaneously.
In recent years, along with taking place frequently of global warming and extreme weather, the city that some population density are bigger is caused to be produced
Raw serious waterlogging, not only affects production and the life of people, and serious threat is to life safety.Rain of the prior art
Water collection system can only realize, by rainwater-collecting, not to be had the effect that draining sluices, rainwater can not be carried out purified treatment simultaneously.
Summary of the invention
Present invention aim at providing a kind of sponge urban road rain infiltration for the deficiency existing for prior art
System and the technical scheme of construction method thereof, be possible not only to meet the construction requirement of the rain infiltration system of different road, improve
The draining effect of urban road rainwater, and can effectively alleviate the discharge pressure of municipal administration sewer pipe, the most purified process
After rainwater can by different degree of purifications for life it can also be used to irrigation, be greatly saved water resource.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of sponge urban road rain infiltration system, it is characterised in that: include rain infiltration layer, purifying layer and subsoil water
Collecting pipe, purifying layer is between rain infiltration layer and subsoil water collecting pipe, and rain infiltration layer is followed successively by water-permeable brick from top to bottom
Layer, sponge filter course, the second conflux layer, concrete base layer and first are confluxed layer, are provided with at least three rainwater clean in purifying layer
Gasifying device, rainwater purification apparatus connects rain infiltration layer and subsoil water collecting pipe, two adjacent rainwater purifications by mozzle
Connected by isocon between device, isocon is provided with Unidirectional solenoid valve;By the design of permeable brick layer, can directly by
Rainwater on road surface permeates the ground, and alleviates the discharge pressure of sewerage system, can effectively play the work controlled flood and drained flooded fields simultaneously
With, the granule foreign in rainwater then can be filtered by sponge filter course, it is simple to rainwater penetrates into second and confluxes in layer, second
The layer that confluxes can realize preliminary convergence drainage effect after confluxing, alleviates the pressure of rainwater on road surface accumulation, and second confluxes in layer
Rainwater flow into first conflux layer realize secondary converge drainage, make rainwater can with dispersion flows, prevent water-retention position from excessively concentrating and
Resulting in blockage, in turn result in waterlogging, the rainwater after collecting can be purified by rainwater purification apparatus in purifying layer effectively
Process, in the water after preventing rainwater from the harmful substances such as the greasy dirt on road surface being brought into purification, and then affect the utilization ratio of rainwater,
Rainwater after rainwater purification apparatus purifies layer by layer, for irrigating and domestic water, has been saved water resource, has been beautified environment, unidirectional
Electromagnetic valve can effectively control the current size between adjacent two rainwater purification apparatus according to actual rainwater emission effect, rises
To protective effect, the rainwater after purified process is discharged by subsoil water collecting pipe is unified, can together with municipal tap water also
With, economize on resources.
Further, the second center confluxing layer is provided with filter well, concrete base layer is evenly arranged with limbers, oozes
Well is confluxed layer by limbers connection first, and the rainwater that second confluxes in layer can be converged, carry by filter well effectively
The conveying effect of high rainwater, cause after preventing rain infiltration overflow, limbers improve second conflux layer and first conflux layer it
Between current balance, improve rainwater purification efficiency.
Further, in rainwater purification apparatus, it is provided with purification chamber, purifies and on the inwall in chamber, be provided with gripper shoe, purify intracavity
Being disposed with the first pressuring plate, the second pressuring plate and location-plate from top to bottom, location-plate is fixedly connected on and is positioned at propping up of left side
On fagging, the first pressuring plate is rotatably connected in the gripper shoe being positioned at left side, and the second pressuring plate is rotatably connected on and is positioned at right side
In gripper shoe, between the first pressuring plate and the second pressuring plate, between the second pressuring plate and location-plate, it is provided with compression spring, logical
Cross the first pressuring plate and the design of the second pressuring plate, can effectively control to purify the pressure of intracavity current, and then regulate current
Flowing velocity, meet actual rainwater treatment needs, compression spring improve the first pressuring plate and the second pressuring plate rotation time
Stability, location-plate then plays the effect that location is fixing.
Further, the end face in purification chamber and bottom surface are provided with the first pipe network interface, purify the left and right sides in chamber respectively
Being provided with the second pipe network interface and the 3rd pipe network interface, the second pipe network interface is positioned at the top of the 3rd pipe network interface, passes through pipe network
The design of interface, it is possible to achieve the fixing connection of rainwater purification apparatus, improves the connective stability between itself and mozzle, strengthens
The draining effect of rainwater.
Further, between the first pressuring plate and the second pressuring plate, between the second pressuring plate and location-plate, location-plate and the 3rd
Being provided with water permeable membrane between pipe network interface, the harmful substances such as the greasy dirt in rainwater can be filtered by water permeable membrane effectively,
Prevent the rainwater generation eutrophication pollution after filtering.
The construction method of a kind of sponge urban road rain infiltration system described above, it is characterised in that include walking as follows
Rapid:
1) preparation of construction
A, first according to the requirement design and construction drawing of planning, and carry out at corresponding site of road according to construction drawing and execute
Work labelling, carries out site clearing to corresponding construction area, and the circle of position out position at distance construction on-the-spot 5~10m is used simultaneously
In placing construction equipment;
Line layout situation below b, then inspection road, carries out foundation dredging scheme, and carries out scheme evaluation, through criticizing
Carry out confiding a technological secret after standard is qualified work;
C, then construction equipment march into the arena, and are positioned over corresponding planned position;
2) subsoil water collecting pipe is laid
A, first according to subsoil water collecting pipe lay depth-set foundation ditch cutting depth, and be layered excavate,
The size using excavator to be respectively 3m × 3m × 1m by length, width and height in the regional extent of labelling excavates foundation ditch, excavates a base
The excavation of next foundation ditch is carried out, until the foundation ditch of the first level excavates complete in setting regions behind hole;
B, then carry out the excavation of foundation pit of the second aspect by set depth, and adjust the degree of depth that single excavates to 0.8m, dig
The excavation of next foundation ditch is carried out, until the foundation ditch of the second aspect excavates complete in setting regions after digging a foundation ditch;
C, reciprocation cycle aforesaid operations, until the excavation of foundation pit of last aspect is complete, at the excavation of foundation pit of each aspect
While ensure spacing between the mining position of excavator and underground utilities more than 20~30cm, and when closely underground pipelines
Reduce the speed of excavator, finally manually the outer wall earth of underground utilities is cleared up with scoop, rush with water after cleaning
Wash, then wipe against clean, then paint and carry out underground utilities sealing protection, and carry out wrapping process by geotextiles;
D, whole construction area excavate after, first the bottom surface to foundation ditch carry out watering cleaning, then enter with rammer compacter
Row compacting processes, it is ensured that the sedimentation degree of depth of foundation ditch bottom surface is less than setting value, then enters bottom surface and the side of foundation ditch with concrete
Row pours, and after the intensity in whole concreting face reaches to set requirement, installs reinforcing bar in the lower section of underground utilities, makes reinforcing bar
Underground utilities are held up, and liner plank between reinforcing bar and underground utilities;
E, last on the concrete being positioned at foundation ditch bottom surface by design requirements laying subsoil water collecting pipe, and in junction
Carry out encapsulation process after the welding of position, then mozzle is uniformly installed on the end face of subsoil water collecting pipe, by mozzle and ground
Junction between lower water collecting pipe carries out encapsulation process, then installs locating support on mozzle, makes mozzle and underground
Water collecting pipe keeps vertical;
3) purifying layer construction
A, it is respectively mounted rainwater purification apparatus, first around mozzle according to mozzle distributing position from low to high
Being filled with clay, the end face making filling clay is overlapping with the bottom surface of rainwater purification apparatus, then that rainwater purification apparatus is solid
Surely it is connected on mozzle, and on the end face of rainwater purification apparatus, connects mozzle, make mozzle and rainwater purification apparatus
Keep vertical, then carry out the installation of next rainwater purification apparatus, be filled with clay around mozzle, make filling
The end face of clay is overlapping with the bottom surface of rainwater purification apparatus, and is fixedly connected on mozzle by rainwater purification apparatus, at rainwater
Connect mozzle on the end face of purifier, make mozzle keep vertical with rainwater purification apparatus;
B, then installation isocon between two adjacent rainwater purification apparatus, the installation site of isocon is according to rainwater
The height and position of purifier is obliquely installed, and installs Unidirectional solenoid valve on isocon simultaneously;
C, finally by above-mentioned construction procedure, all of rainwater purification apparatus is installed, install after terminating in purifying layer
Fill clay, make the degree of depth of purifying layer reach the requirement set;
4) rain infiltration layer construction
A, first at the end face casting concrete of purifying layer, make the top of mozzle maintain an equal level with concrete surface, and at water conservancy diversion
Infiltration lid is installed on pipe, then pours first and conflux layer, and conflux casting concrete basic unit above layer first, simultaneously mixed
It is uniformly arranged limbers on solidifying soil matrix layer;
B, then above concrete base layer, pour second and conflux layer, pour infiltration in the second center confluxing layer
Well, makes the second 1/2 the maintaining an equal level of height and filter well height confluxing layer, and keeps second to conflux Ceng Cong center to both sides gradually
Raise;
C, then second conflux layer end face on sponge filter course is installed, make sponge filter course be fitted in second and conflux layer
End face on, and be fixed at the two ends of sponge filter course;
D, finally above sponge filter course, lay permeable brick layer.
Due to the fact that and have employed technique scheme, have the advantages that
1, by the design of permeable brick layer, directly the rainwater on road surface can be permeated the ground, alleviate sewerage system
Discharge pressure, simultaneously can effectively play the effect controlled flood and drained flooded fields, sponge filter course then can be by the granule foreign in rainwater
Filtering, it is simple to rainwater penetrates into second and confluxes in layer, confluxing second to realize preliminary convergence drainage work after layer confluxes
With, alleviate the pressure of rainwater on road surface accumulation;
2, the second conflux rainwater in layer flows into first layer that confluxes and realizes secondary and converge drainage, makes rainwater can disperse stream
Dynamic, prevent water-retention position from excessively concentrating and resulting in blockage, in turn result in waterlogging;
3, the rainwater purification apparatus in purifying layer can carry out purified treatment to the rainwater after collecting effectively, prevents rainwater
The harmful substances such as the greasy dirt on road surface are brought in the water after purification, and then affect the utilization ratio of rainwater, fill through rainwater purification
Put layer by layer purify after rainwater for irrigate and domestic water, saved water resource, beautified environment, Unidirectional solenoid valve can root
The rainwater emission effect on border effectively controls the current size between adjacent two rainwater purification apparatus factually, plays a protective role;
4, the construction method of the present invention is simple, convenient operation, is possible not only to the rain infiltration system of satisfied different road
Construction requirement, improves the draining effect of urban road rainwater, and can effectively alleviate the discharge pressure of municipal administration sewer pipe, with
Time purified process after rainwater can by different degree of purifications for life it can also be used to irrigation, be greatly saved water and provide
Source.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the knot of rain infiltration system in the present invention a kind of sponge urban road rain infiltration system and construction method thereof
Structure schematic diagram;
Fig. 2 is the structural representation of rain infiltration layer in the present invention;
Fig. 3 is the structural representation of subsoil water collecting pipe in the present invention.
In figure: 1-rain infiltration layer;2-rainwater purification apparatus;3-subsoil water collecting pipe;4-mozzle;5-isocon;6-
Unidirectional solenoid valve;The permeable brick layer of 7-;8-sponge filter course;9-second confluxes layer;10-concrete base layer;11-first confluxes layer;
12-limbers;13-filter well;14-purifies chamber;15-the first pipe network interface;16-the second pipe network interface;17-the 3rd pipe network connects
Mouthful;18-gripper shoe;19-the first pressuring plate;20-the second pressuring plate;21-location-plate;22-compression spring;23-water permeable membrane.
Detailed description of the invention
As shown in Figure 1 to Figure 3, for one sponge urban road rain infiltration system of the present invention, including rain infiltration layer 1,
Purifying layer and subsoil water collecting pipe 3, purifying layer between rain infiltration layer 1 and subsoil water collecting pipe 3, rain infiltration layer 1 from
On be down followed successively by permeable brick layer 7, sponge filter course 8, the second conflux layer 9, concrete base layer 10 and first are confluxed layer 11, second
The conflux center of layer 9 is provided with filter well 13, and concrete base layer 10 is evenly arranged with limbers 12, and filter well 13 is by logical
Water hole 12 connects first and confluxes layer 11, and the rainwater that second confluxes in layer 9 can be converged by filter well 13 effectively, improves rain
The conveying effect of water, cause after preventing rain infiltration overflow, limbers 12 improve second conflux layer 9 and first conflux layer 11 it
Between current balance, improve rainwater purification efficiency.
It is provided with at least three rainwater purification apparatus 2 in purifying layer, is provided with purification chamber 14 in rainwater purification apparatus 2, only
Change and on the inwall in chamber 14, be provided with gripper shoe 18, be disposed with the first pressuring plate 19, second in purifying chamber 14 from top to bottom and increase
Pressing plate 20 and location-plate 21, location-plate 21 is fixedly connected in the gripper shoe 18 being positioned at left side, and the first pressuring plate 19 is rotationally connected
In the gripper shoe 18 being positioned at left side, the second pressuring plate 20 is rotatably connected in the gripper shoe 18 being positioned at right side, the first pressuring plate
19 and second between pressuring plate 20, between the second pressuring plate 20 and location-plate 21, it is provided with compression spring 22, increases by first
Pressing plate 19 and the design of the second pressuring plate 20, can effectively control to purify the pressure of current in chamber 14, and then the stream of regulation current
Dynamic speed, meets the needs of actual rainwater treatment, and compression spring 22 improves the first pressuring plate 19 and rotates with the second pressuring plate 20
Time stability, location-plate 21 then plays the effect that location is fixing, purifies and is provided with the first pipe on the end face in chamber 14 and bottom surface
Network interface 15, the left and right sides purifying chamber 14 is respectively arranged with the second pipe network interface 16 and the 3rd pipe network interface 17, the second pipe network
Interface 16 is positioned at the top of the 3rd pipe network interface 17, by the design of pipe network interface, it is possible to achieve fixing of rainwater purification apparatus 2
Connecting, improve the connective stability between itself and mozzle 4, strengthen the draining effect of rainwater, the first pressuring plate 19 and second increases
Between pressing plate 20, between the second pressuring plate 20 and location-plate 21, it is provided with between location-plate 21 and the 3rd pipe network interface 17
Moisture film 23, the harmful substances such as the greasy dirt in rainwater can be filtered by water permeable membrane 23 effectively, prevents the rainwater after filtering from sending out
Raw eutrophication pollution.
Rainwater purification apparatus 2 connects rain infiltration layer 1 and subsoil water collecting pipe 3, two adjacent rainwater by mozzle 4
Connected by isocon 5 between purifier 2, isocon 5 is provided with Unidirectional solenoid valve 6;By the design of permeable brick layer 7,
Directly the rainwater on road surface can be permeated the ground, alleviate the discharge pressure of sewerage system, can effectively play anti-simultaneously
The effect of flood water drainage, the granule foreign in rainwater then can be filtered by sponge filter course 8, it is simple to rainwater penetrates into second and confluxes
In layer 9, conflux second and preliminary convergence drainage effect after layer 9 confluxes, can be realized, alleviate the pressure of rainwater on road surface accumulation, the
Two conflux rainwater in layer 9 flow into first layer 11 that confluxes and realize secondary and converge drainage, make rainwater can prevent water-retention with dispersion flows
Position is excessively concentrated and is resulted in blockage, and in turn results in waterlogging, after the rainwater purification apparatus 2 in purifying layer can be effectively to collecting
Rainwater carry out purified treatment, in the water after preventing rainwater from the harmful substances such as the greasy dirt on road surface being brought into purification, so impact
The utilization ratio of rainwater, the rainwater after rainwater purification apparatus 2 purifies layer by layer, for irrigating and domestic water, has saved water money
Source, has beautified environment, and Unidirectional solenoid valve 6 can effectively control adjacent two rainwater purifications dress according to actual rainwater emission effect
Putting the current size between 2, play a protective role, the rainwater after purified process is discharged by subsoil water collecting pipe 3 is unified, can
With together with municipal tap water and use, economize on resources.
The construction method of a kind of sponge urban road rain infiltration system described above, comprises the steps:
1) preparation of construction
A, first according to the requirement design and construction drawing of planning, and carry out at corresponding site of road according to construction drawing and execute
Work labelling, carries out site clearing to corresponding construction area, and the circle of position out position at distance construction on-the-spot 5~10m is used simultaneously
In placing construction equipment;
Line layout situation below b, then inspection road, carries out foundation dredging scheme, and carries out scheme evaluation, through criticizing
Carry out confiding a technological secret after standard is qualified work;
C, then construction equipment march into the arena, and are positioned over corresponding planned position, construction equipment are carried out safety inspection simultaneously, keep away
Exempt to affect whole construction progress because cannot normally work during construction;
2) subsoil water collecting pipe is laid
A, first according to subsoil water collecting pipe 3 lay depth-set foundation ditch cutting depth, and be layered excavate,
The size using excavator to be respectively 3m × 3m × 1m by length, width and height in the regional extent of labelling excavates foundation ditch, excavates a base
Carrying out the excavation of next foundation ditch behind hole, until the foundation ditch of the first level excavates complete in setting regions, the earth after excavation is stacked
In setting regions, for the backfill of foundation ditch;
B, then carry out the excavation of foundation pit of the second aspect by set depth, and adjust the degree of depth that single excavates to 0.8m, dig
The excavation of next foundation ditch is carried out, until the foundation ditch of the second aspect excavates complete in setting regions after digging a foundation ditch;
C, reciprocation cycle aforesaid operations, until the excavation of foundation pit of last aspect is complete, at the excavation of foundation pit of each aspect
While ensure spacing between the mining position of excavator and underground utilities more than 20~30cm, and when closely underground pipelines
Reduce the speed of excavator, finally manually the outer wall earth of underground utilities is cleared up with scoop, rush with water after cleaning
Wash, then wipe against clean, then paint and carry out underground utilities sealing protection, and carry out wrapping process by geotextiles;
D, whole construction area excavate after, first the bottom surface to foundation ditch carry out watering cleaning, then enter with rammer compacter
Row compacting processes, it is ensured that the sedimentation degree of depth of foundation ditch bottom surface is less than setting value, then enters bottom surface and the side of foundation ditch with concrete
Row pours, and after the intensity in whole concreting face reaches to set requirement, installs reinforcing bar in the lower section of underground utilities, makes reinforcing bar
Underground utilities are held up, and liner plank between reinforcing bar and underground utilities;
E, last on the concrete being positioned at foundation ditch bottom surface by design requirements laying subsoil water collecting pipe 3, and in junction
Position welding after carry out encapsulation process, then mozzle 4 is uniformly installed on the end face of subsoil water collecting pipe 3, by mozzle 4
And the junction between subsoil water collecting pipe 3 carries out encapsulation process, then installs locating support on mozzle 4, makes mozzle 4
Keep vertical with subsoil water collecting pipe 3;
3) purifying layer construction
A, it is respectively mounted rainwater purification apparatus 2, first at mozzle 4 according to mozzle 4 distributing position from low to high
Surrounding clay is filled with, and the end face making filling clay is overlapping with the bottom surface of rainwater purification apparatus 2, is then filled by rainwater purification
Put 2 to be fixedly connected on mozzle 4, and on the end face of rainwater purification apparatus 2, connect mozzle 4, make mozzle 4 and rainwater
Purifier 2 keeps vertical, then carries out the installation of next rainwater purification apparatus 2, carries out with clay around mozzle 4
Filling, the end face making filling clay is overlapping with the bottom surface of rainwater purification apparatus 2, and is fixedly connected on by rainwater purification apparatus 2 and leads
In flow tube 4, the end face of rainwater purification apparatus 2 connects mozzle 4, makes mozzle 4 keep vertical with rainwater purification apparatus 2;
B, then between two adjacent rainwater purification apparatus 2 install isocon 5, the installation site of isocon 5 according to
The height and position of rainwater purification apparatus 2 is obliquely installed, install Unidirectional solenoid valve 6 on isocon 5 simultaneously, and to being obliquely installed
Isocon 5 is reinforced, and carries out encapsulation process in junction, makes the water after purification can be under gravity along hierarchic structure
Flowing, reduces the installation of driving means, has saved the energy, reduces the pollution to rainwater;
C, finally by above-mentioned construction procedure, all of rainwater purification apparatus 2 is installed, install after terminating at purifying layer
Interior filling clay, makes the degree of depth of purifying layer reach the requirement set, and the clay filled is carried out compaction treatment, after preventing construction
Road surface be uneven, the construction quality that impact is overall;
4) rain infiltration layer construction
A, first at the end face casting concrete of purifying layer, make the top of mozzle 4 maintain an equal level with concrete surface, and at water conservancy diversion
Infiltration lid is installed on pipe 4, then pours first and conflux layer 11, and conflux casting concrete basic unit 10 above layer 11 first,
On concrete base layer 10, it is uniformly arranged limbers 12, it is ensured that can circulate in each limbers 12 simultaneously;
B, then above concrete base layer 10, pour second and conflux layer 9, pour in the second center confluxing layer 9
Filter well 13, makes the second height confluxing layer 9 maintain an equal level with the 1/2 of filter well 13 height, and keeps second to conflux layer 9 from center
Gradually rise to both sides, by the design of V-shaped, can effectively make rainwater converge from both sides toward middle, it is to avoid on road
Rainwater directs out flowing, the drainage effect that impact is overall, and the most beneficially rainwater focuses on, and improves the purified treatment of rainwater
Effect;
C, then second conflux layer 9 end face on install sponge filter course 8, make sponge filter course 8 be fitted in the second remittance
On the end face of fluid layer 9, and it is fixed at the two ends of sponge filter course 8;
D, finally above sponge filter course 8, lay permeable brick layer 7, the width laying area and construction road of water-permeable brick
Spending equal, rainwater runoff coefficient on road surface, square is as shown in table 1.
Table 1 rainwater runoff coefficient on road surface, square
(1) flow rate calculation of entrance rain infiltration layer:
Qm=10-7qT(n)Au
In formula: QmEnter the flow of rain infiltration layer, m3/s;
QT (n) rainfall intensity, L/s;
The T concentration time, min, the general T=10min in road surface for not having Water storage, when bottom surface of catchmenting is the biggest
20min can be extended to;
N Designed recurrence period.
(2) seepage velocity of rainwater calculates:
Vf=KfI
I=(Is+Z)/(Is+Z/2)
In formula: VfThe seepage velocity of permeable areas, m/s;
KfThe infiltration coefficient of permeable areas, m/s;
I hydraulic gradient;
IsFirst confluxes the layer distance to subsoil water collecting pipe, m;
The water-storage depth of Z rain infiltration system, m.
(3) seepage discharge calculates:
Qs=KrAs
In formula: QsSeepage discharge, m3/s;
AsInfiltrating area, m2。
These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any with this
Based on bright, for realizing essentially identical technique effect, done ground simple change, equivalent or modification etc., all contain
Among protection scope of the present invention.