CN106192665B - A kind of sponge urban road rain infiltration system and its construction method - Google Patents

A kind of sponge urban road rain infiltration system and its construction method Download PDF

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Publication number
CN106192665B
CN106192665B CN201610564744.5A CN201610564744A CN106192665B CN 106192665 B CN106192665 B CN 106192665B CN 201610564744 A CN201610564744 A CN 201610564744A CN 106192665 B CN106192665 B CN 106192665B
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layer
construction
rainwater
pipe
foundation pit
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CN106192665A (en
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许育锋
严密
周伟波
陈传
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Zhejiang Jing Chang Construction Co., Ltd.
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Zhejiang Jing Chang Construction Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/227Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F2201/00Details, devices or methods not otherwise provided for
    • E03F2201/10Dividing the first rain flush out of the stormwater flow

Abstract

The invention discloses a kind of sponge urban road rain infiltration system and its construction methods, including rain infiltration layer, purifying layer and underground water collecting pipe, purifying layer is between rain infiltration layer and underground water collecting pipe, rain infiltration layer is followed successively by permeable brick layer, sponge filter layer, the second confluence layer, concrete base layer and the first confluence layer from top to bottom, rainwater purification apparatus is provided in purifying layer, rainwater purification apparatus connects rain infiltration layer and underground water collecting pipe by diversion pipe.Its construction method includes: preparation of construction, underground water collecting pipe is laid with, purifying layer construction and rain infiltration layer are constructed.System availability of the invention is strong, construction method is simple, it not only can satisfy the construction requirement of the rain infiltration system of different roads, improve the draining effect of urban road rainwater, and the discharge pressure of municipal sewer pipe is effectively relieved, purified treated rainwater can be used by different degree of purifications for life simultaneously, it can also be used to irrigate, water resource is greatly saved.

Description

A kind of sponge urban road rain infiltration system and its construction method
Technical field
The present invention relates to a kind of sponge urban road rain infiltration system and its construction methods.
Background technique
The increasing year by year with the waterproof ground in city in urban construction, the run-off of rainwater are also increasing year by year.This The pressure for not only having aggravated sewerage system destroys urban ecology, while also having wasted valuable rainwater resource.
In recent years, taking place frequently with global warming and extreme weather causes the biggish city of some density of population to produce Raw serious waterlogging, not only affects the production and life of people, but also seriously threatens life safety.Rain in the prior art Water collection system can only be realized rainwater-collecting, without the effect that draining sluices, while cannot carry out purified treatment to rainwater.
Summary of the invention
Present invention aims at provide a kind of sponge urban road rain infiltration for deficiency of the prior art The technical solution of system and its construction method not only can satisfy the construction requirement of the rain infiltration system of different roads, improve The draining effect of urban road rainwater, and the discharge pressure of municipal sewer pipe can be effectively relieved, while purified processing Rainwater afterwards can be used by different degree of purifications for life, it can also be used to irrigate, water resource is greatly saved.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of sponge urban road rain infiltration system, it is characterised in that: including rain infiltration layer, purifying layer and underground water Collecting pipe, for purifying layer between rain infiltration layer and underground water collecting pipe, rain infiltration layer is followed successively by water-permeable brick from top to bottom Layer, sponge filter layer, the second confluence layer, concrete base layer and the first confluence layer, it is net to be provided at least three rainwater in purifying layer Makeup is set, and rainwater purification apparatus connects rain infiltration layer and underground water collecting pipe, two adjacent rainwater purifications by diversion pipe It is connected between device by isocon, is provided with Unidirectional solenoid valve on isocon;By the design of permeable brick layer, can directly by Rainwater on road surface permeates the ground, and mitigates the discharge pressure of sewerage system, while can effectively play the work controlled flood and drained flooded fields With the granule foreign in rainwater can be then filtered by sponge filter layer, be penetrated into the second confluence layer convenient for rainwater, second Preliminary convergence drainage may be implemented after confluence layer confluence to act on, the pressure of mitigation rainwater on road surface accumulation, in the second confluence layer Rainwater flows into the first confluence layer and realizes secondary convergence drainage, make rainwater can with dispersion flows, prevent water storage position excessively concentrate and It results in blockage, in turn results in waterlogging, the rainwater purification apparatus in purifying layer can effectively purify the rainwater after collection Processing prevents rainwater from bringing the harmful substances such as greasy dirt on road surface in purified water into, and then influences the utilization efficiency of rainwater, Through rainwater purification apparatus, purified rainwater has saved water resource, has beautified environment, unidirectionally for irrigation and domestic water layer by layer Solenoid valve can effectively control the water flow size between two neighboring rainwater purification apparatus according to actual rainwater emission effect, rise To protective effect, purified treated that rainwater is discharged by the way that underground water collecting pipe is unified, can be together with municipal tap water simultaneously With economizing on resources.
Further, it is provided with filter well at the center of the second confluence layer, limbers is evenly arranged on concrete base layer, is seeped Rainwater in second confluence layer can be converged effectively, be mentioned by limbers connection the first confluence layer, filter well by well The conveying effect of high rainwater prevents from causing overflow after rain infiltration, limbers improve the second confluence layer and the first confluence layer it Between water flow balance, improve the purification efficiency of rainwater.
Further, it is provided with purify cavity in rainwater purification apparatus, is provided with support plate on the inner wall of purify cavity, in purify cavity It is disposed with the first pressuring plate, the second pressuring plate and positioning plate from top to bottom, positioning plate is fixedly connected on the branch positioned at left side On fagging, the first pressuring plate is rotatably connected in the support plate in left side, and the second pressuring plate is rotatably connected on positioned at right side In support plate, it is provided with compressed spring between the first pressuring plate and the second pressuring plate, between the second pressuring plate and positioning plate, is led to The design of the first pressuring plate and the second pressuring plate is crossed, can effectively control the pressure of water flow in purify cavity, and then adjust water flow Flowing velocity, meets the needs of practical rainwater treatment, when compressed spring improves the first pressuring plate and the rotation of the second pressuring plate Stability, positioning plate then play the fixed effect of positioning.
Further, the first pipe network interface, the left and right sides difference of purify cavity are provided on the top and bottom of purify cavity It is provided with the second pipe network interface and third pipe network interface, the second pipe network interface is located at the top of third pipe network interface, passes through pipe network Being fixedly connected for rainwater purification apparatus may be implemented in the design of interface, improves its connective stability between diversion pipe, enhancing The draining effect of rainwater.
Further, between the first pressuring plate and the second pressuring plate, between the second pressuring plate and positioning plate, positioning plate and third It is provided with water permeable membrane between pipe network interface, the harmful substances such as greasy dirt in rainwater can be effectively filtered by water permeable membrane, Prevent filtered rainwater from eutrophication pollution occurs.
A kind of construction method of such as above-mentioned sponge urban road rain infiltration system, it is characterised in that including walking as follows It is rapid:
1) preparation of construction
A, it first according to the requirement of planning design and construction drawing, and is carried out and is applied in corresponding site of road according to construction drawing Work label carries out site clearing to corresponding construction area, while using in the circle of position out position of 5~10m of distance construction scene In placement construction equipment;
B, it then checks the line layout situation below road, ground excavation plan is carried out, and carry out scheme evaluation, through criticizing Work of confiding a technological secret is carried out after quasi- qualification;
C, then construction equipment is marched into the arena, and is placed in corresponding planned position;
2) underground water collecting pipe is laid with
A, the cutting depth of foundation pit is set according to the laying depth of underground water collecting pipe first, and is layered and is excavated, It is respectively that 3m × 3m × 1m size excavates foundation pit by length, width and height in the regional scope of label using excavator, excavates a base The excavation of next foundation pit is carried out behind hole, until the foundation pit excavation of the first level finishes in setting regions;
B, the excavation of foundation pit of the second level is then carried out by set depth, and the depth for adjusting single excavation is dug to 0.8m It digs after a foundation pit and carries out the excavation of next foundation pit, until the foundation pit excavation of the second level finishes in setting regions;
C, reciprocation cycle aforesaid operations, until the excavation of foundation pit of the last one level finishes, in the excavation of foundation pit of each level While guarantee that the spacing between the mining position and underground utilities of excavator is greater than 20~30cm, and when close to underground utilities The speed for reducing excavator, finally manually clears up the outer wall soil of underground utilities with scoop, is rushed after cleaning with water It washes, then wiped clean, then protection is sealed to underground utilities with paint, and carry out wrapping processing with geotextiles;
D, entire construction area excavate after, watering cleaning first is carried out to the bottom surface of foundation pit, then with rammer compacter into Row compacting processing guarantees that the sedimentation depth of foundation pit bottom surface is less than setting value, then with concrete to the bottom surface of foundation pit and side into Row pours, and after the intensity in entire concreting face reaches sets requirement, installs reinforcing bar in the lower section of underground utilities, makes reinforcing bar Underground utilities are held up, and pad plank between reinforcing bar and underground utilities;
E, it finally is laid with underground water collecting pipe by design requirement on the concrete for being located at foundation pit bottom surface, and in junction Encapsulation process is carried out after the welding of position, diversion pipe is uniformly then installed on the top surface of underground water collecting pipe, by diversion pipe and ground The junction being lauched between collecting pipe is sealed processing, and locating support is then installed on diversion pipe, makes diversion pipe and underground Water collecting pipe keeps vertical;
3) purifying layer is constructed
A, rainwater purification apparatus is installed according to the distributing position of diversion pipe from low to high respectively, first around diversion pipe It is filled with clay, keeps the top surface for filling clay Chong Die with the bottom surface of rainwater purification apparatus, then consolidate rainwater purification apparatus Surely it is connected on diversion pipe, and connects diversion pipe on the top surface of rainwater purification apparatus, make diversion pipe and rainwater purification apparatus It keeps vertical, then carries out the installation of next rainwater purification apparatus, be filled around diversion pipe with clay, make to fill The top surface of clay and the bottom surface of rainwater purification apparatus are Chong Die, and rainwater purification apparatus is fixedly connected on diversion pipe, in rainwater Diversion pipe is connected on the top surface of purification device, keeps diversion pipe vertical with rainwater purification apparatus holding;
B, isocon then is installed between two adjacent rainwater purification apparatus, the installation site of isocon is according to rainwater The height and position of purification device is obliquely installed, while Unidirectional solenoid valve is installed on isocon;
C, finally all rainwater purification apparatus are installed by above-mentioned construction procedure, after installation in purifying layer Clay is filled, the depth of purifying layer is made to reach the requirement of setting;
4) rain infiltration layer is constructed
A, the top of diversion pipe and concrete surface is made to maintain an equal level in the top surface casting concrete of purifying layer first, and in water conservancy diversion Then installation infiltration lid on pipe pours the first confluence layer, and in the top casting concrete base of the first confluence layer, while mixed Limbers is uniformly arranged on solidifying soil matrix layer;
B, the second confluence layer is then poured above concrete base layer, pour infiltration in the center of the second confluence layer Well, make the second confluence layer height and filter well height 1/2 maintain an equal level, and keep second confluence layer from center to two sides gradually It increases;
C, sponge filter layer then is installed on the top surface of the second confluence layer, sponge filter layer is made to be fitted in the second confluence layer Top surface on, and be fixed at the both ends of sponge filter layer;
D, permeable brick layer finally is laid in the top of sponge filter layer.
The present invention is by adopting the above-described technical solution, have the advantages that
1, by the design of permeable brick layer, directly the rainwater on road surface can be permeated the ground, mitigate sewerage system Discharge pressure, while the effect controlled flood and drained flooded fields can be effectively played, sponge filter layer then can be by the granule foreign in rainwater It is filtered, is penetrated into the second confluence layer convenient for rainwater, preliminary convergence drainage may be implemented after the second confluence layer confluence and make With the pressure of mitigation rainwater on road surface accumulation;
2, the rainwater in the second confluence layer flows into the first confluence layer and realizes secondary convergence drainage, and rainwater is allow to disperse to flow It is dynamic, it prevents water storage position from excessively concentrating and resulting in blockage, in turn results in waterlogging;
3, the rainwater purification apparatus in purifying layer effectively can carry out purified treatment to the rainwater after collection, prevent rainwater The harmful substances such as greasy dirt on road surface are brought into purified water, and then influence the utilization efficiency of rainwater, are filled through rainwater purification Purified rainwater layer by layer is set to have saved water resource for irrigation and domestic water, beautified environment, Unidirectional solenoid valve can root The water flow size between two neighboring rainwater purification apparatus is effectively controlled according to actual rainwater emission effect, is played a protective role;
4, construction method of the invention is simple, facilitates operation, not only can satisfy the rain infiltration system of different roads Construction requirement, improves the draining effect of urban road rainwater, and the discharge pressure of municipal sewer pipe can be effectively relieved, together When purified treated rainwater can be used by different degree of purifications for life, it can also be used to irrigate, water money be greatly saved Source.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the knot of rain infiltration system in a kind of sponge urban road rain infiltration system of the present invention and its construction method Structure schematic diagram;
Fig. 2 is the structural schematic diagram of rain infiltration layer in the present invention;
Fig. 3 is the structural schematic diagram of underground water collecting pipe in the present invention.
In figure: 1- rain infiltration layer;2- rainwater purification apparatus;3- underground water collecting pipe;4- diversion pipe;5- isocon;6- Unidirectional solenoid valve;The permeable brick layer of 7-;8- sponge filter layer;The confluence layer of 9- second;10- concrete base layer;The confluence layer of 11- first; The limbers 12-;13- filter well;14- purify cavity;15- the first pipe network interface;16- the second pipe network interface;17- third pipe network connects Mouthful;18- support plate;The first pressuring plate of 19-;The second pressuring plate of 20-;21- positioning plate;22- compressed spring;23- water permeable membrane.
Specific embodiment
It as shown in Figure 1 to Figure 3, is a kind of sponge urban road rain infiltration system of the present invention, including rain infiltration layer 1, Purifying layer and underground water collecting pipe 3, purifying layer between rain infiltration layer 1 and underground water collecting pipe 3, rain infiltration layer 1 from On be followed successively by down permeable brick layer 7, sponge filter layer 8, second converge layer 9, concrete base layer 10 and first confluence layer 11, second It is provided with filter well 13 at the center of confluence layer 9, limbers 12 is evenly arranged on concrete base layer 10, filter well 13 passes through logical The connection of water hole 12 first confluence layer 11, filter well 13 can effectively converge the rainwater in the second confluence layer 9, improve rain The conveying effect of water prevents from causing overflow after rain infiltration, limbers 12 improve the second confluence layer 9 and the first confluence layer 11 it Between water flow balance, improve the purification efficiency of rainwater.
It is provided at least three rainwater purification apparatus 2 in purifying layer, is provided with purify cavity 14 in rainwater purification apparatus 2, only Change and be provided with support plate 18 on the inner wall of chamber 14, is disposed with the increasing of the first pressuring plate 19, second in purify cavity 14 from top to bottom Pressing plate 20 and positioning plate 21, positioning plate 21 are fixedly connected in the support plate 18 in left side, the rotation connection of the first pressuring plate 19 In the support plate 18 for being located at left side, the second pressuring plate 20 is rotatably connected in the support plate 18 on right side, the first pressuring plate 19 and second are provided with compressed spring 22 between pressuring plate 20, between the second pressuring plate 20 and positioning plate 21, pass through first and increase The design of pressing plate 19 and the second pressuring plate 20 can effectively control the pressure of water flow in purify cavity 14, and then adjust the stream of water flow Dynamic speed meets the needs of practical rainwater treatment, and compressed spring 22 improves the first pressuring plate 19 and the second pressuring plate 20 rotates When stability, positioning plate 21 then plays the fixed effect of positioning, is provided with the first pipe on the top and bottom of purify cavity 14 Network interface 15, the left and right sides of purify cavity 14 are respectively arranged with the second pipe network interface 16 and third pipe network interface 17, the second pipe network Interface 16 is located at the top of third pipe network interface 17, and by the design of pipe network interface, the fixation of rainwater purification apparatus 2 may be implemented Connection, improves its connective stability between diversion pipe 4, enhances the draining effect of rainwater, and the first pressuring plate 19 and second increases It is provided between pressing plate 20, between the second pressuring plate 20 and positioning plate 21, between positioning plate 21 and third pipe network interface 17 The harmful substances such as greasy dirt in rainwater can be effectively filtered by moisture film 23, water permeable membrane 23, prevent filtered rainwater from sending out Raw eutrophication pollution.
Rainwater purification apparatus 2 connects rain infiltration layer 1 and underground water collecting pipe 3, two adjacent rainwater by diversion pipe 4 It is connected between purification device 2 by isocon 5, Unidirectional solenoid valve 6 is provided on isocon 5;By the design of permeable brick layer 7, Directly the rainwater on road surface can be permeated the ground, mitigate the discharge pressure of sewerage system, while can effectively play anti- Granule foreign in rainwater can be then filtered by the effect of flood water drainage, sponge filter layer 8, penetrate into the second confluence convenient for rainwater In layer 9, preliminary convergence drainage effect may be implemented after the second confluence layer 9 converges, mitigate the pressure of rainwater on road surface accumulation, the Rainwater in two confluence layers 9 flows into the first confluence layer 11 and realizes secondary convergence drainage, makes rainwater that can prevent water storage with dispersion flows Position excessively concentrates and results in blockage, and in turn results in waterlogging, the rainwater purification apparatus 2 in purifying layer can effectively to collection after Rainwater carry out purified treatment, prevent rainwater from bringing the harmful substances such as greasy dirt on road surface in purified water into, and then influence The utilization efficiency of rainwater, through rainwater purification apparatus 2, purified rainwater has saved water money for irrigation and domestic water layer by layer Source, has beautified environment, and Unidirectional solenoid valve 6 can effectively control two neighboring rainwater purification dress according to actual rainwater emission effect The water flow size between 2 is set, is played a protective role, purified treated rainwater is discharged by the way that underground water collecting pipe 3 is unified, can To be used in combination together with municipal tap water, economize on resources.
A kind of construction method of such as above-mentioned sponge urban road rain infiltration system, includes the following steps:
1) preparation of construction
A, it first according to the requirement of planning design and construction drawing, and is carried out and is applied in corresponding site of road according to construction drawing Work label carries out site clearing to corresponding construction area, while using in the circle of position out position of 5~10m of distance construction scene In placement construction equipment;
B, it then checks the line layout situation below road, ground excavation plan is carried out, and carry out scheme evaluation, through criticizing Work of confiding a technological secret is carried out after quasi- qualification;
C, then construction equipment is marched into the arena, and is placed in corresponding planned position, while carrying out safety inspection to construction equipment, is kept away Exempt to influence entire construction progress because can not work normally when construction;
2) underground water collecting pipe is laid with
A, the cutting depth of foundation pit is set according to the laying depth of underground water collecting pipe 3 first, and is layered and is excavated, It is respectively that 3m × 3m × 1m size excavates foundation pit by length, width and height in the regional scope of label using excavator, excavates a base The excavation of next foundation pit is carried out behind hole, until the foundation pit excavation of the first level finishes in setting regions, the soil after excavation is stacked Backfill in setting regions, for foundation pit;
B, the excavation of foundation pit of the second level is then carried out by set depth, and the depth for adjusting single excavation is dug to 0.8m It digs after a foundation pit and carries out the excavation of next foundation pit, until the foundation pit excavation of the second level finishes in setting regions;
C, reciprocation cycle aforesaid operations, until the excavation of foundation pit of the last one level finishes, in the excavation of foundation pit of each level While guarantee that the spacing between the mining position and underground utilities of excavator is greater than 20~30cm, and when close to underground utilities The speed for reducing excavator, finally manually clears up the outer wall soil of underground utilities with scoop, is rushed after cleaning with water It washes, then wiped clean, then protection is sealed to underground utilities with paint, and carry out wrapping processing with geotextiles;
D, entire construction area excavate after, watering cleaning first is carried out to the bottom surface of foundation pit, then with rammer compacter into Row compacting processing guarantees that the sedimentation depth of foundation pit bottom surface is less than setting value, then with concrete to the bottom surface of foundation pit and side into Row pours, and after the intensity in entire concreting face reaches sets requirement, installs reinforcing bar in the lower section of underground utilities, makes reinforcing bar Underground utilities are held up, and pad plank between reinforcing bar and underground utilities;
E, it finally is laid with underground water collecting pipe 3 by design requirement on the concrete for being located at foundation pit bottom surface, and in junction Position welding after carry out encapsulation process, then diversion pipe 4 is uniformly installed on the top surface of underground water collecting pipe 3, by diversion pipe 4 Junction between underground water collecting pipe 3 is sealed processing, then installs locating support on diversion pipe 4, makes diversion pipe 4 Keep vertical with underground water collecting pipe 3;
3) purifying layer is constructed
A, rainwater purification apparatus 2 is installed according to the distributing position of diversion pipe 4 from low to high respectively, first in diversion pipe 4 Surrounding is filled with clay, is kept the top surface for filling clay Chong Die with the bottom surface of rainwater purification apparatus 2, is then filled rainwater purification It sets 2 to be fixedly connected on diversion pipe 4, and connects diversion pipe 4 on the top surface of rainwater purification apparatus 2, make diversion pipe 4 and rainwater Purification device 2 keeps vertically, then carrying out the installation of next rainwater purification apparatus 2, being carried out around diversion pipe 4 with clay Filling keeps the top surface for filling clay Chong Die with the bottom surface of rainwater purification apparatus 2, and rainwater purification apparatus 2 is fixedly connected on and is led In flow tube 4, diversion pipe 4 is connected on the top surface of rainwater purification apparatus 2, diversion pipe 4 is made to keep vertical with rainwater purification apparatus 2;
B, isocon 5 is then installed between two adjacent rainwater purification apparatus 2, the installation site of isocon 5 according to The height and position of rainwater purification apparatus 2 is obliquely installed, while Unidirectional solenoid valve 6 is installed on isocon 5, and to being obliquely installed Isocon 5 is reinforced, and is carried out encapsulation process in junction, is made purified water energy under gravity along hierarchic structure Flowing, reduces the installation of driving device, has saved the energy, reduces the pollution to rainwater;
C, finally all rainwater purification apparatus 2 are installed by above-mentioned construction procedure, in purifying layer after installation Interior filling clay makes the depth of purifying layer reach the requirement of setting, and carries out compaction treatment to the clay of filling, after preventing construction Road surface be uneven, influence whole construction quality;
4) rain infiltration layer is constructed
A, the top of diversion pipe 4 and concrete surface is made to maintain an equal level in the top surface casting concrete of purifying layer first, and in water conservancy diversion Installation infiltration lid, then pours the first confluence layer 11 on pipe 4, and in the top casting concrete base 10 of the first confluence layer 11, Limbers 12 is uniformly arranged on concrete base layer 10 simultaneously, it is ensured that each limbers 12 can circulate;
B, the second confluence layer 9 then is poured in the top of concrete base layer 10, is poured in the center of the second confluence layer 9 Filter well 13 makes the height of the second confluence layer 9 and the 1/2 of 13 height of filter well maintain an equal level, and keeps the second confluence layer 9 from center It is gradually risen to two sides, by the design of V-shaped, so that rainwater is converged from both sides toward centre, avoid on road Rainwater directs out flowing, influences whole drainage effect, while being conducive to rainwater centralized processing, improves the purified treatment of rainwater Effect;
C, sponge filter layer 8 then is installed on the top surface of the second confluence layer 9, sponge filter layer 8 is made to be fitted in the second remittance On the top surface of fluid layer 9, and it is fixed at the both ends of sponge filter layer 8;
D, permeable brick layer 7, the width of the laying area and construction road of water-permeable brick finally are laid in the top of sponge filter layer 8 Spend equal, runoff coefficient of the rainwater on road surface, square is as shown in table 1.
Runoff coefficient of 1 rainwater of table on road surface, square
(1) enter the flow rate calculation of rain infiltration layer:
Qm=10-7qT(n)Au
In formula: Qm--- into the flow of rain infiltration layer, m3/s;
QT (n) --- rainfall intensity, L/s;
T --- concentration time, min, T=10min general for the road surface of not Water storage, when bottom surface of catchmenting is very big 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: Vf--- the seepage velocity of permeable areas, m/s;
Kf--- the infiltration coefficient of permeable areas, m/s;
I --- hydraulic gradient;
Is--- distance of the first confluence layer to underground water collecting pipe, m;
Z --- the water-storage depth of rain infiltration system, m.
(3) seepage discharge calculates:
Qs=KrAs
In formula: Qs--- seepage discharge, m3/s;
As--- infiltrating area, m2
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair Based on bright, to realize essentially identical technical effect, made ground simple change, equivalent replacement or modification etc. are all covered Among protection scope of the present invention.

Claims (6)

1. a kind of sponge urban road rain infiltration system, it is characterised in that: converged including rain infiltration layer, purifying layer and underground water Flow tube, the purifying layer is between the rain infiltration layer and the underground water collecting pipe, and the rain infiltration layer is from upper past Under be followed successively by permeable brick layer, sponge filter layer, the second confluence layer, concrete base layer and the first confluence layer, set in the purifying layer It is equipped at least three rainwater purification apparatus, the rainwater purification apparatus connects the rain infiltration layer and described by diversion pipe It is lauched collecting pipe, is connected between two adjacent rainwater purification apparatus by isocon, is provided with list on the isocon To solenoid valve.
2. a kind of sponge urban road rain infiltration system according to claim 1, it is characterised in that: second confluence It is provided with filter well at the center of layer, limbers is evenly arranged on the concrete base layer, the filter well passes through described logical Water hole connection the first confluence layer.
3. a kind of sponge urban road rain infiltration system according to claim 1, it is characterised in that: the rainwater purification It is provided with purify cavity in device, support plate is provided on the inner wall of the purify cavity, is successively set from top to bottom in the purify cavity It is equipped with the first pressuring plate, the second pressuring plate and positioning plate, the positioning plate is fixedly connected in the support plate in left side, First pressuring plate is rotatably connected in the support plate in left side, and second pressuring plate, which is rotatably connected on, is located at the right side In the support plate of side, between first pressuring plate and second pressuring plate, second pressuring plate and the positioning Compressed spring is provided between plate.
4. a kind of sponge urban road rain infiltration system according to claim 3, it is characterised in that: the purify cavity The first pipe network interface is provided on top and bottom, be respectively arranged at left and right sides of the purify cavity the second pipe network interface and Third pipe network interface, the second pipe network interface are located at the top of the third pipe network interface.
5. a kind of sponge urban road rain infiltration system according to claim 4, it is characterised in that: first pressurization Between plate and second pressuring plate, between second pressuring plate and the positioning plate, the positioning plate and the third pipe Water permeable membrane is provided between network interface.
6. a kind of construction method of sponge urban road rain infiltration system as described in claim 1, it is characterised in that including Following steps:
1) preparation of construction
A, first according to the requirement of planning design and construction drawing, and construction mark is carried out in corresponding site of road according to construction drawing Note carries out site clearing to corresponding construction area, while in the circle of position out position of 5~10m of distance construction scene for putting Set construction equipment;
B, it then checks the line layout situation below road, carries out ground excavation plan, and carry out scheme evaluation, approved conjunction Work of confiding a technological secret is carried out after lattice;
C, then construction equipment is marched into the arena, and is placed in corresponding planned position;
2) underground water collecting pipe is laid with
A, the cutting depth of foundation pit is set according to the laying depth of underground water collecting pipe first, and is layered and is excavated, is used Excavator is respectively that 3m × 3m × 1m size excavates foundation pit by length, width and height in the regional scope of label, after excavating a foundation pit The excavation of next foundation pit is carried out, until the foundation pit excavation of the first level finishes in setting regions;
B, the excavation of foundation pit of the second level is then carried out by set depth, and the depth for adjusting single excavation excavates one to 0.8m The excavation of next foundation pit is carried out after a foundation pit, until the foundation pit excavation of the second level finishes in setting regions;
C, reciprocation cycle above-mentioned steps 2) b, until the excavation of foundation pit of the last one level finishes, in the excavation of foundation pit of each level Guarantee that the spacing between the mining position of excavator and underground utilities is greater than 20~30cm simultaneously, and is dropped when close to underground utilities The speed of low excavator is finally manually cleared up the outer wall soil of underground utilities with scoop, is rinsed after cleaning with water, Then wiped clean, then protection is sealed to underground utilities with paint, and carry out wrapping processing with geotextiles;
D, after entire construction area excavates, watering cleaning first is carried out to the bottom surface of foundation pit, is then rammed with rammer compacter Crucial point reason guarantees that the sedimentation depth of foundation pit bottom surface is less than setting value, is then poured with concrete the bottom surface of foundation pit and side It builds, after the intensity in entire concreting face reaches sets requirement, reinforcing bar is installed in the lower section of underground utilities, makes reinforcing bar by ground Underground pipelines are held up, and plank is padded between reinforcing bar and underground utilities;
E, it finally is laid with underground water collecting pipe by design requirement on the concrete for being located at foundation pit bottom surface, and in the position of junction Encapsulation process is carried out after welding, diversion pipe is uniformly then installed on the top surface of underground water collecting pipe, by diversion pipe and underground water Junction between collecting pipe is sealed processing, and locating support is then installed on diversion pipe, and diversion pipe and underground water is made to converge Flow tube keeps vertical;
3) purifying layer is constructed
A, rainwater purification apparatus is installed according to the distributing position of diversion pipe from low to high respectively, with viscous first around diversion pipe Soil is filled, and keeps the top surface for filling clay Chong Die with the bottom surface of rainwater purification apparatus, then by the fixed company of rainwater purification apparatus It connects on diversion pipe, and connects diversion pipe on the top surface of rainwater purification apparatus, keep diversion pipe and rainwater purification apparatus Vertically, the installation for then carrying out next rainwater purification apparatus, is filled around diversion pipe with clay, makes to fill clay Top surface it is Chong Die with the bottom surface of rainwater purification apparatus, and rainwater purification apparatus is fixedly connected on diversion pipe, in rainwater purification Diversion pipe is connected on the top surface of device, keeps diversion pipe vertical with rainwater purification apparatus holding;
B, isocon then is installed between two adjacent rainwater purification apparatus, the installation site of isocon is according to rainwater purification The height and position of device is obliquely installed, while Unidirectional solenoid valve is installed on isocon;
C, finally by above-mentioned construction procedure 3) a and 3) b installs all rainwater purification apparatus, it is being purified after installation Clay is filled in layer, and the depth of purifying layer is made to reach the requirement of setting;
4) rain infiltration layer is constructed
A, the top of diversion pipe and concrete surface is made to maintain an equal level in the top surface casting concrete of purifying layer first, and on diversion pipe Then installation infiltration lid pours the first confluence layer, and in the top casting concrete base of the first confluence layer, while in concrete Limbers is uniformly arranged in base;
B, the second confluence layer is then poured above concrete base layer, pour filter well in the center of the second confluence layer, So that the height of the second confluence layer and the 1/2 of filter well height is maintained an equal level, and the second confluence layer is kept gradually to rise from center to two sides It is high;
C, sponge filter layer then is installed on the top surface of the second confluence layer, sponge filter layer is made to be fitted in the top of the second confluence layer On face, and it is fixed at the both ends of sponge filter layer;
D, permeable brick layer finally is laid in the top of sponge filter layer.
CN201610564744.5A 2016-07-14 2016-07-14 A kind of sponge urban road rain infiltration system and its construction method Active CN106192665B (en)

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CN106759825B (en) * 2016-12-14 2020-04-10 浙江建设职业技术学院 Construction method of sponge urban green land water storage system
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CN107100227B (en) * 2017-04-26 2019-07-09 贵州建工集团第一建筑工程有限责任公司 A kind of pergola on the city road LID biology delay ditch construction method
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