CN106193259B - A kind of Rainwater collection system and construction method for sponge city - Google Patents

A kind of Rainwater collection system and construction method for sponge city Download PDF

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Publication number
CN106193259B
CN106193259B CN201610567568.0A CN201610567568A CN106193259B CN 106193259 B CN106193259 B CN 106193259B CN 201610567568 A CN201610567568 A CN 201610567568A CN 106193259 B CN106193259 B CN 106193259B
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rainwater
ditch
laid
water
rain
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CN106193259A (en
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吴婉玲
刘学应
周杰
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Zhejiang University of Water Resources and Electric Power
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Zhejiang University of Water Resources and Electric Power
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

The invention discloses a kind of Rainwater collection systems and construction method for sponge city, the system includes rain water drainage ditch, rainwater-collecting ditch and reservoir, rain water drainage filter device is equipped in rain water drainage ditch, intercepting pollution for rainwater device is equipped in rainwater-collecting ditch, it is equipped with conditioning tank between rain water drainage ditch and rainwater-collecting ditch, is equipped with rainwater purification apparatus in conditioning tank.The construction method includes: (a) excavation of foundation pit;(b) rainwater gathering tube is laid with;(c) rain water drainage ditch is built;(d) conditioning tank is built;(e) rainwater-collecting ditch is built;(f) reservoir is built;(g) reservoir water body sample detection;(h) reservoir water body utilizes.The present invention reinforces the naturally vertical penetrating power of rainwater, effectively controls excessive runoff rainwater, increases the collecting amount of rainwater, repeated multiple times filtering is carried out to the rainwater of collection simultaneously, the impurity in rainwater is removed, rainwater is collected, achieve the effect that be detained rainwater, mitigates municipal drainage pressure.

Description

A kind of Rainwater collection system and construction method for sponge city
Technical field
The invention belongs to sponge urban construction technical fields, and in particular to a kind of rainwater catchment system for sponge city System and construction method.
Background technique
In recent years, meet rain must flood be increasingly becoming the urgent problem in many cities.Current many cities all use Fast row's mode, rainwater falls on hardened ground and can only concentrate in pipeline to be arranged fastly, this mode allow in city 70% rainwater in vain Lost, if most of rainwater is left rather than is drained, can realize to the maximum extent rainwater urban area accumulation, Infiltration and purification, promote the utilization and ecological environmental protection of rainwater resource.That is, be expected to will be original big for sponge urban construction The water that amount drains into pipe duct end the links such as passes through absorptions in advance, saves, permeates and digesting, and becomes the effective way cracked and meet that rain must be flooded Diameter, rather than by repairing big drainpipe.
How does rainwater stay? in sponge Process of Urban Development, a large amount of " cavernous body " is formed, enables city as sponge one Sample, adapt to environmental change and reply in terms of have good " elasticity ", rain when water suction, water storage, infiltration, only Water by the water stored " release " and is used when needing.Sponge city is under the premise of ensuring municipal drainage prevention waterlogging safety, most Realize to limits that rainwater in the accumulation, infiltration and purification of urban area, promotes the utilization and ecological environmental protection of rainwater resource. The cities auxiliary facility such as the water systems such as Ru He, lake, pond and greenery patches, garden, permeable road surface.Rainwater passes through these " cavernous bodies " Lower to seep, stagnant storage, purify, reuse, last remainder is by pipe network, pumping plant outlet, to effectively improve sewerage system mark Standard extenuates urban waterlogging pressure.Specifically, being exactly in the places source such as urban architecture and cell, road, greenery patches, by big Scale carries out the eco-facilities such as Rain Garden, sunk type greenery patches, grass planting ditch, permeable pavement, carries out lower infiltration to rainwater, regulates and stores.
But in traditional sponge urban construction mode, during collecting rainwater, rain penetration performance is poor, rainwater-collecting Amount is restricted, and still will appear waterlogging phenomenon, and during rainwater infiltration, and the impurity in rainwater is easy to block inbuilt pipe Road influences entire water storage process.
Summary of the invention
Above-mentioned technical problem present in present invention aims to solve the prior art provides a kind of for sponge city Rainwater collection system and construction method reinforce the naturally vertical penetrating power of rainwater, effectively control excessive runoff rainwater, The collecting amount of rainwater is increased, while repeated multiple times filtering is carried out to the rainwater of collection, the impurity in rainwater is removed, rainwater is carried out It collects, achievees the effect that be detained rainwater, mitigate municipal drainage pressure, while rainwater is purified, is stored, fresh-keeping integration receipts Collection processing, purified rainwater can be used for various places, play ecological, environmental protective, free of contamination effect, remarkable in economical benefits.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of Rainwater collection system for sponge city, it is characterised in that: including rain water drainage ditch, rainwater-collecting Ditch and reservoir;
The bottom of rain water drainage ditch is equipped with ventilation anti-seepage layer of sand, and the top of ventilation anti-seepage layer of sand is equipped with the permeable operculum colpi of sand base Plate, ventilation anti-seepage layer of sand are equipped with rain water drainage filter device, and rain water drainage filter device is connected with abandoned stream ditch water discharge pipe;
The bottom of rainwater-collecting ditch is equipped with waterproof layer, and the top of waterproof layer is equipped with rain collector, rain collector Top be equipped with screed-coat, screed-coat is equipped with sand base drainage brick, and rain pollution cutting device, rainwater are accessed on rain collector It is equipped with rainwater elevator pump at pollution cutting device and collects ditch water discharge pipe, is equipped with rainwater return pipe, rainwater at the inner wall of rainwater-collecting ditch Return pipe is linked on rainwater elevator pump, and the top of rainwater-collecting ditch is equipped with biochemical filtering device;
It is equipped with conditioning tank between rain water drainage ditch and rainwater-collecting ditch, is equipped with rainwater purification apparatus, conditioning tank in conditioning tank Rainwater return pipe is connected, bottom of pond portion is adjusted and is equipped with overflow port;
Reservoir accesses rain gathering tube, and rainwater gathering tube is separately connected abandoned stream ditch water discharge pipe and collects ditch water discharge pipe, The bottom of reservoir is equipped with ventilation anti-seepage brick, and reservoir is surrounded by anti-seepage geotextile, and the top of anti-seepage geotextile is equipped with pad Layer, Water-storage machine structure is equipped in bed course, water storage mechanism is equipped with concrete cover.
Further, side plate building enclosure is equipped in rain water drainage ditch, side plate building enclosure is equipped with fastener, and fastener is fixed Position rain water drainage filter device.
Further, rain water drainage filter device includes upper plate and lower plate, is filled between upper plate and lower plate Filter material material.
Further, intercepting pollution for rainwater device includes shell, and shell is equipped with water inlet, water outlet and sewage draining exit, sets in shell There is filtering basket, the top of filtering basket is equipped with handle.
Further, it is equipped with liquid level inductor in conditioning tank, is equipped with flow control valve at overflow port, liquid level inductor is connected with Controller, controller connect flow control valve.
Further, water storage mechanism includes silica sand building block, and silica sand building block is in honeycomb, is equipped with flow-guiding mouth in water storage mechanism.
A kind of construction method of the Rainwater collection system for sponge city, it is characterised in that include the following steps:
(a) excavation of foundation pit;
(b) rainwater gathering tube is laid with: selecting the pipeline of regulation model as rainwater gathering tube according to drawing, and in pipeline Wall is rinsed, then in the bottom of foundation ditch broken-up laying pipeline of excavation, cushion block is arranged in the bottom of foundation pit, every segment pipe is placed Onto cushion block, and pipeline fastening is subject to pipe sleeve on cushion block, between pipeline with retaining ring and is protected, rainwater gathering tube is integrally protected The laying of the regulation gradient is held, keeps draining smooth, then in design position preserved pipeline access port, then backfills soil;
(c) rain water drainage ditch is built: geotextiles is first laid at the foundation pit of rain water drainage ditch, geotextile laying is smooth, takes Spreading degree is laid with ventilation anti-seepage sand after the completion of 80mm-120mm, geotextile laying, in bottom, and arranges smooth, is formed ventilative Antiseepage layer of sand, then the permeable roadbed in edge is built in the foundation pit side of rain water drainage ditch, the permeable roadbed in edge is tested, guarantees that edge is saturating The bearing capacity of water route base is qualified, then punches in the permeable roadbed in edge, is then laid with abandoned stream ditch water discharge pipe, and by abandoned stream ditch water discharge Abandoned stream ditch water discharge pipe and is linked on the access port of rainwater gathering tube by pipe across the preformed hole of the permeable roadbed in edge, is then borrowed The permeable roadbed setting side plate building enclosure in edge is helped, then rain water drainage filter device is set between side plate building enclosure, adjustment Rain water drainage filter device and abandoned stream ditch water discharge pipe are connected in rain water drainage filter device position, then with fastener by rainwater The positioning of abandoned stream filter device is fixed, and is then laid with sand base water permeation channel cover plate at the top of the permeable roadbed in edge, then permeable in sand base Turf is laid on trench cover;
(d) conditioning tank is built: it is laid with the sand of 100mm, then backfill, and compaction in layers in the bottom of foundation ditch of conditioning tank, Then in the bottom of foundation ditch of conditioning tank and surrounding casting concrete, and reserved water exit position, overflow port is poured at water exit position, After concrete curing, set up support frame, then rainwater purification apparatus is set on the support frame on concrete, then in conditioning tank Top formwork, and one layer of permeable formation is laid at formwork, liquid level inductor is downwardly at permeable formation, then on permeable formation upper berth If turf;
(e) rainwater-collecting ditch is built: in bottom of foundation ditch one layer of 200-300mm waterproof layer of laying of rainwater-collecting ditch, then Personnel on site's assembly rainwater-collecting module is arranged on waterproof layer, rainwater-collecting module is pacified according to the requirement and size of design Dress, is fixed into rain collector, is then rinsed with water pipe to rain collector, keeps rain collector integrally clear It is clean, it is successively then laid with screed-coat and sand base drainage brick in the top of rain collector, is then picked out at rain collector Separating tube is arranged U-type groove further according to the position of each separating tube, then steel plate is arranged in U-type groove, then by intercepting pollution for rainwater device Fixed on steel plate, and separating tube is connected on intercepting pollution for rainwater device, will then collect ditch water discharge pipe and be linked into rainwater and summarize On the access port of pipe, then rainwater elevator pump is connect with intercepting pollution for rainwater device, inspection then is set in the lower section of rainwater elevator pump Mouth is repaired, is then laid with rainwater return pipe in the top of sand base drainage brick, rainwater return pipe keeps horizontality when installing, using U Type, which rotates, to be laid with, and the pipeline place of rotating is fixed using metal button member underthrust, and then rainwater return pipe is linked on conditioning tank, Then soil is backfilled, and one piece of biochemical filtering device is set on surface, is then laid with turf;
(f) reservoir is built: it first is laid with anti-seepage geotextile in the foundation pit surrounding of reservoir, anti-seepage geotextile laying is smooth, The bed course of 400-500mm is laid in the top of anti-seepage geotextile again, compacting fixation then carried out to bed course with side plate, then by rainwater Gathering tube is passed into the foundation pit of reservoir, is then inserted in protective case, then the foundation pit in reservoir to the nozzle of rainwater gathering tube Bottom is laid with ventilation anti-seepage brick, and ventilation anti-seepage brick is spaced apart 300-600mm hole, and the casting concrete in hole, then Silica sand building block is built in the top of concrete, constitutes honeycomb water storage mechanism, and flow-guiding mouth is set in water storage mechanism, then backfills Then soil is laid with concrete cover on soil;
(g) reservoir water body sample detection;
(h) reservoir water body utilizes.
Further, the concrete operations of step (a) excavation of foundation pit are to measure unwrapping wire according to construction drawing, are successively abandoned to rainwater Stream ditch, conditioning tank, rainwater-collecting ditch and reservoir are excavated, the digging machine cooperation each foundation pit of hand excavation to designed elevation, then Bottom of foundation ditch is tamped, after site operation technical staff detects qualification, is laid with protective net on the surface of foundation pit.
Further, in step (e), the setting of waterproof layer first uses one layer of fine sand to be laid with, as base bed course, and to fine sand into Row watering, keeps the humidity of sand bed, is then successively laid with one layer of protective film, reinforces one layer of geotextiles.
The present invention is by adopting the above-described technical solution, have the advantages that
1, the permeable formation and rainwater-collecting being laid in the base water permeation channel cover plate that is laid in rain water drainage ditch of the present invention, conditioning tank The sand base drainage brick being laid in ditch all has high water permeable ability, reinforces the naturally vertical penetrating power of rainwater, so that rainwater Abandoned stream ditch and rainwater-collecting ditch are collected rainwater, achieve the effect that be detained rainwater, mitigate municipal drainage pressure;
Rain water drainage filter device is carried in rain water drainage ditch, and impurity is filtered to the water seeped lower in rain water drainage ditch It acts on, intercepting pollution for rainwater device is carried in rainwater-collecting ditch, impurity effect is filtered to the water seeped lower in rainwater-collecting ditch, in this way The rainwater seeped under earth's surface can be filtered, play the effect of purifying water body, and intercepting pollution for rainwater device connects rainwater elevator pump, When opening rainwater elevator pump, the water body that intercepting pollution for rainwater device purifies is driven into conditioning tank, the rainwater purification apparatus in conditioning tank Effect is filtered to rainwater, the rain penetration in conditioning tank into rainwater-collecting ditch, rainwater in rainwater-collecting ditch repeatedly into Row filtering can carry out repeated multiple times filtering to the rainwater of collection in this way, remove in rainwater 90% impurity, improve clean-up effect;
The setting of conditioning tank can increase the collecting amount of rainwater, and rainwater return pipe is laid with U-shaped rotate, and increase rain Water flows through distance, further increases the collecting amount of rainwater, while carrying out buffer function to the rainwater that rainwater elevator pump pumps out, makes The hydraulic pressure obtained in rainwater return pipe is impartial, improves the safety of rainwater conveying;
When the rainwater collected in conditioning tank reaches the upper limit, liquid level inductor senses rainwater liquid level, issues signal, Controller obtain signal and show red light carry out alarm condition, staff can turn-on flow rate control valve open overflow port, will adjust The rainwater discharge in pond is saved, the liquid level of rainwater is controlled;
The water storage mechanism being laid in reservoir can increase the dissolved oxygen content in rainwater, build microorganism growing environment, right Rainwater purified, stored, fresh-keeping integrated collection processing, and purified rainwater can be used for various places, play ecological, environmental protective, Free of contamination effect, remarkable in economical benefits.
2, the present invention in the construction process, rain water drainage ditch, conditioning tank, rainwater-collecting ditch is successively built according to construction drawing And reservoir, enable each facility in rear construction to carry out the adjustment of area and position according to the facility of front, it is corresponding interior Part device also can further adjust installation, reduce the waste of material in work progress, avoid the occurrence of phenomenon of doing over again;
The present invention is laid in the laying of rainwater gathering tube using segmentation, and convenient for picking and placing pipeline, and every segment pipe is solid It is scheduled on cushion block, prevents pipeline from inconsistent phenomenon occur, and integrally keep the regulation gradient to be laid with rainwater gathering tube, keep draining suitable Freely;
The present invention sets up rain water drainage filtering dress when rain water drainage ditch is built, by the bearing capacity of the permeable roadbed in edge It sets, improves the stability of construction, side plate building enclosure is set on the permeable roadbed in edge, the fastener in side plate building enclosure will The positioning of rain water drainage filter device is fixed so that rain water drainage filter device will not because of rainwater impact and occur loosening existing As guaranteeing that rain water drainage filter device reaches best to the filtering of rainwater;
Rainwater purification apparatus is arranged using the support frame on concrete in the present invention, facilitates adjustment rainwater purification apparatus to be in and adjusts The lengthwise position on pond is saved, guarantees that rainwater purification apparatus reaches best to the filtering of rainwater;
Rain collector of the present invention be it is mutually assembled according to the requirement of design and size by rainwater-collecting module, just It is rinsed after completing rain collector construction with water pipe in the construction quality of control rain collector, keeps rainwater Collection device integrally cleans.Rain collector can be collected into sufficient rainwater in this way, and use rain to the rainwater being collected into Water pollution cutting device removal impurity, and being provided with conducive to the repeated filtration to rainwater for rainwater return pipe, improve rainwater degree of purity, reach To the effect for being detained rainwater, mitigate municipal drainage pressure;
The rainwater being collected into is drained into reservoir by the present invention, and reservoir purifies rainwater, stores, fresh-keeping one Change collection processing.The purified rainwater of the present invention can be used for various places, play ecological, environmental protective, free of contamination effect, economy effect It is beneficial significant.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is a kind of structural schematic diagram of the Rainwater collection system for sponge city in the present invention;
Fig. 2 is the structural schematic diagram of rain water drainage filter device in the present invention;
Fig. 3 is the structural schematic diagram of rainwater pollution cutting device in the present invention.
Specific embodiment
It as shown in Figure 1 to Figure 3, is a kind of Rainwater collection system for sponge city in the present invention, including rainwater Abandoned stream ditch 1, rainwater-collecting ditch 2 and reservoir 3.
The bottom of rain water drainage ditch 1 is equipped with ventilation anti-seepage layer of sand 4, and the top of ventilation anti-seepage layer of sand 4 is equipped with sand base permeable ditch Cover board 5, ventilation anti-seepage layer of sand 4 are equipped with rain water drainage filter device 6, and rain water drainage filter device 6 is connected with abandoned stream ditch water discharge Pipe 7.Side plate building enclosure 26 is equipped in rain water drainage ditch 1, side plate building enclosure 26 is equipped with fastener 27, and fastener 27 positions Rain water drainage filter device 6.Rain water drainage filter device 6 includes upper plate 28 and lower plate 29, upper plate 28 and lower plate 29 Between be filled with filtering material 30.
The bottom of rainwater-collecting ditch 2 is equipped with waterproof layer 8, and the top of waterproof layer 8 is equipped with rain collector 9, rainwater-collecting The top of device 9 is equipped with screed-coat 10, and screed-coat 10 is equipped with sand base drainage brick 11, and screed-coat 10 and sand base drainage brick 11 have High water penetration.Rain pollution cutting device 13 is accessed on rain collector 9, intercepting pollution for rainwater device 13 includes shell 31, shell Body 31 is equipped with water inlet 32, water outlet 33 and sewage draining exit 34, is equipped with filtering basket 35, the top of filtering basket 35 in shell 31 Equipped with handle 36, filtering basket 35 is stamped to form for aluminium sheet, and surface is equipped with permeability hole, by contaminant filter in filtering basket 35 In, by exerting a force on handle 36, filtering basket 35 can be taken out, remove impurity.Rainwater is equipped at intercepting pollution for rainwater device 13 to be promoted It pumps 14 and collects ditch water discharge pipe 15, be equipped with rainwater return pipe 16 at the inner wall of rainwater-collecting ditch 2, rainwater return pipe 16 is linked into rain On water elevator pump 14.The top of rainwater-collecting ditch 2 is equipped with biochemical filtering device 12, and biochemical filtering device 12 can remove rainwater and be in Partial impurities when earth's surface.
It is equipped with conditioning tank 17 between rain water drainage ditch 1 and rainwater-collecting ditch 2, is equipped with rainwater purification apparatus in conditioning tank 17 18, conditioning tank 17 connects rainwater return pipe 16, and 17 bottom of conditioning tank is equipped with overflow port 19.Liquid level inductor is equipped in conditioning tank 17 37, flow control valve 38 is equipped at overflow port 19, liquid level inductor 37 is connected with controller, and controller connects flow control valve 38。
Reservoir 3 accesses rain gathering tube 20, and rainwater gathering tube 20 is separately connected abandoned stream ditch water discharge pipe 7 and collects ditch row Water pipe 15.The bottom of reservoir 3 is equipped with ventilation anti-seepage brick 21, and reservoir 3 is surrounded by anti-seepage geotextile 22, anti-seepage geotextile 22 top is equipped with bed course 23, and bed course 23 is that small crushed stone is piled up.Water-storage machine structure 24, water storage mechanism 24 are equipped in bed course 23 It is equipped with concrete cover 25.Water storage mechanism 24 includes silica sand building block, and silica sand building block is in honeycomb, is equipped with and leads in water storage mechanism 24 Head piece 39.
The permeable formation and rainwater collection being laid in the base water permeation channel cover plate that is laid in rain water drainage ditch 1 of the present invention, conditioning tank 17 The sand base drainage brick 11 being laid in collection ditch 2 all has high water permeable ability, reinforces the naturally vertical penetrating power of rainwater, so that Rain water drainage ditch 1 and rainwater-collecting ditch 2 are collected rainwater, achieve the effect that be detained rainwater, mitigate municipal drainage pressure.? Rain water drainage filter device 6 is carried in rain water drainage ditch 1, and impurity effect, rain are filtered to the water seeped lower in rain water drainage ditch 1 Water, which is collected, carries intercepting pollution for rainwater device 13 in ditch 2, be filtered impurity effect to the water seeped lower in rainwater-collecting ditch 2, in this way may be used The rainwater seeped under earth's surface is filtered, the effect of purifying water body is played, and intercepting pollution for rainwater device 13 connects rainwater elevator pump 14, When opening rainwater elevator pump 14, the water body that intercepting pollution for rainwater device 13 purifies is driven into conditioning tank 17, the rain in conditioning tank 17 Water purification installation 18 is filtered effect to rainwater, and the rain penetration in conditioning tank 17 is into rainwater-collecting ditch 2, and rainwater is in rainwater Collect in ditch 2 and filtering be repeated, can carry out repeated multiple times filtering to the rainwater of collection in this way, in removal rainwater 90% it is miscellaneous Matter improves clean-up effect.The setting of conditioning tank 17 can increase the collecting amount of rainwater, and rainwater return pipe 16 with U-shaped around rotating into Row is laid with, and increase rainwater flows through distance, further increases the collecting amount of rainwater, while to the rainwater that rainwater elevator pump 14 pumps out Buffer function is carried out, so that the hydraulic pressure in rainwater return pipe 16 is impartial, improves the safety of rainwater conveying.It is received when in conditioning tank 17 When the rainwater of collection reaches the upper limit, liquid level inductor 37 senses rainwater liquid level, issues signal, and controller obtains signal and shows Show red light carry out alarm condition, staff can turn-on flow rate control valve 38 open overflow port 19, by the rainwater in conditioning tank 17 Discharge, controls the liquid level of rainwater.The water storage mechanism 24 being laid in reservoir 3 can increase the dissolved oxygen content in rainwater, battalion Microorganism growing environment is made, rainwater is purified, is stored, fresh-keeping integrated collection processing, purified rainwater can be used for respectively Kind place, plays ecological, environmental protective, free of contamination effect, remarkable in economical benefits.
Construction deployment
1, tissue drawing draws careful, technical annotation in construction, specifies construction quality target, exploration scene.
2, construction site quality control circle is set up, the responsibility of engineering quality system is established.
3, project manager is responsible for engineering construction, organizes and implements construction, works out every plan, and configuration management scheme, is arranged at target It applies, and exercises supervision management to construction quality, cost, security civilization, construction.
4, it arranges place electricity consumption, with water, material storehouse, handles visa formality of marching into the arena.
5, organization material is marched into the arena, by the clear material brand of construction quality requirement, specification, model.
6, organization arrangement construction personnel cooperates total packet, Party A, management according to construction drawing.System for reclaiming rainwater is installed, In work progress, the construction quality of each process is controlled.
A kind of construction method of the Rainwater collection system for sponge city, includes the following steps:
(a) excavation of foundation pit:
Preparation of construction:
1, tissue drawing draws careful, technical annotation in construction, specifies construction quality target, exploration scene.
2, construction site quality control circle is set up, the responsibility of engineering quality system is established.
3, project manager is responsible for engineering construction, organizes and implements construction, works out every plan, and configuration management scheme, is arranged at target It applies, and exercises supervision management to construction quality, cost, security civilization, construction.
4, it arranges place electricity consumption, with water, material storehouse, handles visa formality of marching into the arena.
5, organization material is marched into the arena, by the clear material brand of construction quality requirement, specification, model.
6, organization arrangement construction personnel cooperates total packet, Party A, management according to construction drawing.System for reclaiming rainwater is installed, In work progress, the construction quality of each process is controlled.
Unwrapping wire is measured according to construction drawing, successively to rain water drainage ditch 1, conditioning tank 17, rainwater-collecting ditch 2 and water storage It is excavated in pond 3.Digging machine cooperates each foundation pit of hand excavation to designed elevation, then tamps bottom of foundation ditch.Through site operation technology After personnel detect qualification, protective net is laid on the surface of foundation pit.
(b) rainwater gathering tube 20 is laid with: selecting the pipeline of regulation model as rainwater gathering tube 20 according to drawing, and to pipe Road inner wall is rinsed.Again in the bottom of foundation ditch broken-up laying pipeline of excavation, cushion block is set in the bottom of foundation pit, by every segment pipe It is placed on cushion block, and pipeline fastening is subject to pipe sleeve on cushion block, between pipeline with retaining ring and is protected.Rainwater gathering tube 20 It is whole that the regulation gradient is kept to be laid with, keep draining smooth.Then in design position preserved pipeline access port, soil is then backfilled.
(c) rain water drainage ditch 1 is built: geotextiles are first laid at the foundation pit of rain water drainage ditch 1, geotextile laying is smooth, The lap of splice is in 80mm-120mm.After the completion of geotextile laying, it is laid with ventilation anti-seepage sand in bottom, and arranges smooth, is formed saturating Gas antiseepage layer of sand 4.The permeable roadbed in edge is built in the foundation pit side of rain water drainage ditch 1 again, tests the permeable roadbed in edge.Guarantee side The bearing capacity of the permeable roadbed of edge is qualified, then punches in the permeable roadbed in edge, is then laid with abandoned stream ditch water discharge pipe 7, and by abandoned stream Ditch water discharge pipe 7 passes through the preformed hole of the permeable roadbed in edge, and abandoned stream ditch water discharge pipe 7 is linked into the access port of rainwater gathering tube 20 On.Then side plate building enclosure 26 is set by the permeable roadbed in edge, then rain water drainage is set between side plate building enclosure 26 Filter device 6 adjusts 6 position of rain water drainage filter device, rain water drainage filter device 6 and abandoned stream ditch water discharge pipe 7 is connected, so Rain water drainage filter device 6 is positioned with fastener 27 afterwards and is fixed.Then it is permeable sand base to be laid at the top of the permeable roadbed in edge Trench cover 5, then turf is laid on sand base water permeation channel cover plate 5.
(d) conditioning tank 17 is built: being laid with the sand of 100mm, then backfill in the bottom of foundation ditch of conditioning tank 17, and is layered rammer It is real.Then in the bottom of foundation ditch of conditioning tank 17 and surrounding casting concrete, and reserved water exit position, it is poured at water exit position excessive Head piece 19.After concrete curing, support frame is set up on concrete, then rainwater purification apparatus 18 is set on the support frame.Then In the top formwork of conditioning tank 17, and it is laid with one layer of permeable formation at formwork, liquid level inductor 37 is downwardly at permeable formation, Turf is laid on permeable formation again.
(e) rainwater-collecting ditch 2 is built: being laid with one layer of 200-300mm waterproof layer 8 in the bottom of foundation ditch of rainwater-collecting ditch 2, is prevented The setting of water layer 8 first uses one layer of fine sand to be laid with, and sprinkles water as base bed course 23, and to fine sand, keeps the humidity of sand bed, so It is successively laid with one layer of protective film afterwards, reinforces one layer of geotextiles.Personnel on site's assembly rainwater-collecting mould is arranged on waterproof layer 8 again Block, rainwater-collecting module are installed according to the requirement and size of design, and the dimensions of rainwater-collecting module is 800*400* 230mm can thus be fixed into rain collector 9, and the pressure-bearing of rain collector 9 is 35 Dun/㎡, and rainwater-collecting rate reaches 93% or more.Then rain collector 9 is rinsed with water pipe, keeps the whole cleaning of rain collector 9.Then in rain The top of water collecting device 9 is successively laid with screed-coat 10 and sand base drainage brick 11, then picks out liquid separation at rain collector 9 Pipe is arranged U-type groove further according to the position of each separating tube, then steel plate is arranged in U-type groove, then consolidates intercepting pollution for rainwater device 13 Determine onto steel plate, and separating tube is connected on intercepting pollution for rainwater device 13, will then collect ditch water discharge pipe 15 and be linked into rainwater remittance On the access port of general pipeline 20.Then rainwater elevator pump 14 is connect with intercepting pollution for rainwater device 13, then in rainwater elevator pump 14 Access hole is arranged in lower section, is then laid with rainwater return pipe 16 in the top of sand base drainage brick 11, rainwater return pipe 16 is protected when installing Water holding level state is laid with using U-shaped rotate, and the pipeline place of rotating is fixed using metal button member underthrust, and then rainwater flows back Pipe 16 is linked on conditioning tank 17, is then backfilled soil, and one piece of biochemical filtering device 12 is arranged on surface, is then laid with grass Skin.
(f) reservoir 3 is built: being first laid with anti-seepage geotextile 22 in the foundation pit surrounding of reservoir 3, anti-seepage geotextile 22 is laid with It is smooth.The bed course 23 of 400-500mm is laid in the top of anti-seepage geotextile 22 again, then bed course 23 be compacted with side plate solid It is fixed.Rainwater gathering tube 20 is passed into again in the foundation pit of reservoir 3, protective case then is inserted in the nozzle of rainwater gathering tube 20, Again reservoir 3 bottom of foundation ditch be laid with ventilation anti-seepage brick 21, ventilation anti-seepage brick 21 be spaced apart 300-600mm hole, and Then casting concrete in hole builds silica sand building block in the top of concrete, constitutes honeycomb water storage mechanism 24, and in water storage Flow-guiding mouth 39 is set in mechanism 24, then backfills soil, concrete cover 25 is then laid on soil.
(g) 3 water body sample detection of reservoir.
(h) 3 water body of reservoir utilizes.
The present invention successively builds rain water drainage ditch 1, conditioning tank 17, rainwater-collecting in the construction process, according to construction drawing Ditch 2 and reservoir 3 enable each facility in rear construction to carry out the adjustment of area and position according to the facility of front, accordingly Interior arrangement also can further adjust installation, reduce the waste of material in work progress, avoid the occurrence of phenomenon of doing over again.The present invention To in the laying of rainwater gathering tube 20, it is laid with using segmentation, convenient for picking and placing pipeline, and every segment pipe is fixed on cushion block, It prevents pipeline from inconsistent phenomenon occur, and the whole holding regulation gradient of rainwater gathering tube 20 is laid with, keep draining smooth.The present invention When rain water drainage ditch 1 is built, rain water drainage filter device 6 is set up by the bearing capacity of the permeable roadbed in edge, improves construction Stability, is arranged side plate building enclosure 26 on the permeable roadbed in edge, and the fastener 27 in side plate building enclosure 26 abandons rainwater Flow filter device 6 positioning fix so that rain water drainage filter device 6 will not because of rainwater impact and there is loose phenomenon, protect Card rain water drainage filter device 6 reaches best to the filtering of rainwater.The present invention is net using the support frame setting rainwater on concrete Makeup sets 18, and adjustment rainwater purification apparatus 18 is facilitated to be in the lengthwise position on conditioning tank 17, guarantees that rainwater purification apparatus 18 is right The filtering of rainwater reaches best.Rain collector 9 of the present invention is the requirement and size phase by rainwater-collecting module according to design Mutually it is assembled, convenient for control rain collector 9 construction quality, when complete rain collector 9 construct after, with water pipe into Row rinses, and keeps the whole cleaning of rain collector 9.Rain collector 9 can be collected into sufficient rainwater in this way, and to receipts The rainwater collected removes impurity using intercepting pollution for rainwater device 13, and being provided with for rainwater return pipe 16 is conducive to the mistake repeatedly of rainwater Filter improves rainwater degree of purity, achievees the effect that be detained rainwater, mitigates municipal drainage pressure.The present invention arranges the rainwater being collected into Enter into reservoir 3, reservoir 3 purifies rainwater, stores, fresh-keeping integrated collection is handled.The purified rain of the present invention Water can be used for various places, play ecological, environmental protective, free of contamination effect, remarkable in economical benefits.
Construction safety safeguard measure
1, it studies hard, implement, executing country, the construction safety pertinent regulations that place is promulgated.Project management department security official reinforces Safety is told somebody what one's real intentions are and safety education work, organizes various security activities extensively, enhances construction safety prevention awareness, improves construction Safe practice is horizontal.
2, it in strict accordance with country, the related regulation of local government, regulation, establishes, sound safety in production guarantee system, formulates The object of safety management implements safety management responsibility.Improve and perfect safety management items account.
3, trained, examination qualified accredited management, execution and inspection personnel are equipped with.
Civilized construction measure
1, special messenger is responsible for handling every examination and approval procedures and coordinates the relationship of the departments concerned, and acquirement is supported energetically in many ways, really Engineering is protected to go on smoothly.
2, project management department must designate a special person to take charge civilized construction (or standardization building site construction) management work.Project management department builder Civilized construction should be included in the groundwork content of its daily management, work layer is supervised to do civilized construction well, and perform corresponding note Record.The factor for influencing environment to waste oil, waste water and waste generated in construction, production, repair procedures etc. controls.Waste oil, Waste water, waste difference centralized collection and processing,
3, this engineering civilized construction detailed rules and regulations are write, and project management department is organized to learn and execute.
4, building site nameplate is arranged in construction site, includes project profile board, project management staff list board, construction site Standardized management board, engineering-environment board, six big discipline boards of safety in production, safety in production day counting number board, fire prevention tissue board, construction Spot plane layout drawing.The production of label hangs the standard of having to comply with.System of keeping a public place clean is carried out in construction site and Office Area, arranges Full-time health responsible person, partition management specify responsibility, keep facing construction apply, construction site and the cleaning for entering construction area road.
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 solve essentially identical technical problem, essentially identical technical effect is realized, made simple change, etc. With replacement or modification etc., all it is covered by among protection scope of the present invention.

Claims (9)

1. a kind of Rainwater collection system for sponge city, including rain water drainage ditch, rainwater-collecting ditch and reservoir, institute The bottom for stating rain water drainage ditch is equipped with ventilation anti-seepage layer of sand, and the top of the ventilation anti-seepage layer of sand is equipped with sand base water permeation channel cover plate, The ventilation anti-seepage layer of sand is equipped with rain water drainage filter device, and the rain water drainage filter device is connected with abandoned stream ditch water discharge Pipe, it is characterised in that:
The bottom of the rainwater-collecting ditch is equipped with waterproof layer, and the top of the waterproof layer is equipped with rain collector, the rainwater The top of collection device is equipped with screed-coat, and the screed-coat is equipped with sand base drainage brick, and accessing on the rain collector has Intercepting pollution for rainwater device is equipped with rainwater elevator pump at the intercepting pollution for rainwater device and collects ditch water discharge pipe, the rainwater-collecting ditch Rainwater return pipe is equipped at inner wall, the rainwater return pipe is linked on the rainwater elevator pump, the top of the rainwater-collecting ditch Portion is equipped with biochemical filtering device;
It is equipped with conditioning tank between the rain water drainage ditch and the rainwater-collecting ditch, is equipped with rainwater purification in the conditioning tank and fills It sets, the conditioning tank connects the rainwater return pipe, and the adjusting bottom of pond portion is equipped with overflow port;
The reservoir accesses rain gathering tube, and the rainwater gathering tube is separately connected the abandoned stream ditch water discharge pipe and the receipts Collect ditch water discharge pipe, the bottom of the reservoir is equipped with ventilation anti-seepage brick, and the reservoir is surrounded by anti-seepage geotextile, described The top of anti-seepage geotextile is equipped with bed course, and Water-storage machine structure is equipped in the bed course, and the water storage mechanism is equipped with coagulation earth mulch Plate.
2. a kind of Rainwater collection system for sponge city according to claim 1, it is characterised in that: the rain Side plate building enclosure is equipped in water abandoned stream ditch, the side plate building enclosure is equipped with fastener, and the fastener positions the rain Water abandoned stream filter device.
3. a kind of Rainwater collection system for sponge city according to claim 1, it is characterised in that: the rain Water abandoned stream filter device includes upper plate and lower plate, and filtering material is filled between the upper plate and the lower plate.
4. a kind of Rainwater collection system for sponge city according to claim 1, it is characterised in that: the rain Water pollution cutting device includes shell, and the shell is equipped with water inlet, water outlet and sewage draining exit, is equipped with filtering in the shell and mentions The top of basket, the filtering basket is equipped with handle.
5. a kind of Rainwater collection system for sponge city according to claim 1, it is characterised in that: the tune It saves and is equipped with liquid level inductor in pond, be equipped with flow control valve at the overflow port, the liquid level inductor is connected with controller, institute It states controller and connects the flow control valve.
6. a kind of Rainwater collection system for sponge city according to claim 1, it is characterised in that: the storage Water dispenser structure includes silica sand building block, and the silica sand building block is in honeycomb, is equipped with flow-guiding mouth in the water storage mechanism.
7. a kind of construction method based on the Rainwater collection system described in claim 1 for sponge city, feature It is to include the following steps:
(a) excavation of foundation pit;
(b) rainwater gathering tube be laid with: according to drawing select regulation model pipeline as rainwater gathering tube, and to inner wall of the pipe into Row rinses, then in the bottom of foundation ditch broken-up laying pipeline of excavation, cushion block is arranged in the bottom of foundation pit, every segment pipe is placed into pad On block, and pipeline fastening is subject to pipe sleeve on cushion block, between pipeline with retaining ring and is protected, rainwater gathering tube integrally keeps advising Grade is laid with, and is kept draining smooth, then in design position preserved pipeline access port, is then backfilled soil;
(c) rain water drainage ditch is built: geotextiles is first laid at the foundation pit of rain water drainage ditch, geotextile laying is smooth, overlap joint length Degree is laid with ventilation anti-seepage sand after the completion of 80mm-120mm, geotextile laying, in bottom, and arranges smooth, formation ventilation anti-seepage Layer of sand, then the permeable roadbed in edge is built in the foundation pit side of rain water drainage ditch, the permeable roadbed in edge is tested, guarantees the permeable road in edge The bearing capacity of base is qualified, then punches in the permeable roadbed in edge, is then laid with abandoned stream ditch water discharge pipe, and abandoned stream ditch water discharge pipe is worn The preformed hole of the permeable roadbed in edge is crossed, and abandoned stream ditch water discharge pipe is linked on the access port of rainwater gathering tube, then by side Side plate building enclosure is arranged in the permeable roadbed of edge, then rain water drainage filter device is arranged between side plate building enclosure, adjusts rainwater Rain water drainage filter device and abandoned stream ditch water discharge pipe are connected in abandoned stream filter device position, then with fastener by rain water drainage Filter device positioning is fixed, and is then laid with sand base water permeation channel cover plate at the top of the permeable roadbed in edge, then in the permeable operculum colpi of sand base Turf is laid on plate;
(d) conditioning tank is built: being laid with the sand of 100mm, then backfill, and compaction in layers in the bottom of foundation ditch of conditioning tank, then In the bottom of foundation ditch and surrounding casting concrete of conditioning tank, and reserved water exit position, overflow port, coagulation are poured at water exit position After soil maintenance, set up support frame, then rainwater purification apparatus is set on the support frame on concrete, then at the top of conditioning tank Formwork, and one layer of permeable formation is laid at formwork, liquid level inductor is downwardly at permeable formation, then grass is laid on permeable formation Skin;
(e) rainwater-collecting ditch is built: being laid with one layer of 200-300mm waterproof layer in the bottom of foundation ditch of rainwater-collecting ditch, then in waterproof Personnel on site's assembly rainwater-collecting module is arranged on layer, rainwater-collecting module is installed according to the requirement and size of design, Gu It is fixed that then rain collector is rinsed with water pipe at rain collector, keep rain collector integrally to clean, so It is successively laid with screed-coat and sand base drainage brick in the top of rain collector afterwards, then picks out liquid separation at rain collector Pipe is arranged U-type groove further according to the position of each separating tube, then steel plate is arranged in U-type groove, then fixes intercepting pollution for rainwater device It is connected on intercepting pollution for rainwater device onto steel plate, and by separating tube, will then collect ditch water discharge pipe and be linked into rainwater gathering tube On access port, then rainwater elevator pump is connect with intercepting pollution for rainwater device, access hole then is set in the lower section of rainwater elevator pump, Then it is laid with rainwater return pipe in the top of sand base drainage brick, rainwater return pipe keeps horizontality when installing, and rotates using U-shaped It is laid with, the pipeline place of rotating is fixed using metal button member underthrust, and then rainwater return pipe is linked on conditioning tank, is then returned Banket earth, and one piece of biochemical filtering device is arranged on surface, is then laid with turf;
(f) reservoir is built: it first is laid with anti-seepage geotextile in the foundation pit surrounding of reservoir, anti-seepage geotextile laying is smooth, then The top of anti-seepage geotextile is laid with the bed course of 400-500mm, then carries out compacting fixation to bed course with side plate, then rainwater is summarized Pipe is passed into the foundation pit of reservoir, is then inserted in protective case, then the bottom of foundation ditch in reservoir to the nozzle of rainwater gathering tube It is laid with ventilation anti-seepage brick, ventilation anti-seepage brick is spaced apart 300-600mm hole, and the casting concrete in hole, then mixed The top for coagulating soil builds silica sand building block, constitutes honeycomb water storage mechanism, and flow-guiding mouth, then backfill are arranged in water storage mechanism Then earth is laid with concrete cover on soil;
(g) reservoir water body sample detection;
(h) reservoir water body utilizes.
8. a kind of construction method of Rainwater collection system for sponge city according to claim 7, feature Be: step (a) excavation of foundation pit concrete operations are to measure unwrapping wire according to construction drawing, successively to rain water drainage ditch, adjusting Pond, rainwater-collecting ditch and reservoir are excavated, the digging machine cooperation each foundation pit of hand excavation to designed elevation, then tamp foundation pit bottom Portion is laid with protective net on the surface of foundation pit after site operation technical staff detects qualification.
9. a kind of construction method of Rainwater collection system for sponge city according to claim 7, feature Be: in step (e), the setting of waterproof layer first uses one layer of fine sand to be laid with, and sprinkles water as base bed course, and to fine sand, protects The humidity of sand bed is held, one layer of protective film is then successively laid with, reinforces one layer of geotextiles.
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CN106758799B (en) * 2016-12-13 2019-09-17 浙江水利水电学院 System for reclaiming rainwater and its construction method for sponge urban interchange
CN107794971A (en) * 2017-11-17 2018-03-13 芜湖德司节能科技有限公司 A kind of sponge urban rainwater collection processing system and its rainwater-collecting processing method
CN107740486A (en) * 2017-12-08 2018-02-27 芜湖德司节能科技有限公司 A kind of urban road collects rainwater installation and its method
CN107989153A (en) * 2017-12-08 2018-05-04 芜湖德司节能科技有限公司 A kind of novel construction method for building sponge city
CN109989474B (en) * 2017-12-29 2020-09-04 江苏森洋环境建设集团有限公司 Construction method of rainwater collection system
CN110122277A (en) * 2019-07-02 2019-08-16 余姚心智新能源科技有限公司 A kind of park water accumulating and supplying deep-well based on sponge city
CN111005420B (en) * 2019-12-05 2021-02-26 浙江水利水电学院 Rainwater collection system and construction method thereof
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