CN107447807A - A kind of subsurface stormwater collection system and its construction method - Google Patents
A kind of subsurface stormwater collection system and its construction method Download PDFInfo
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- CN107447807A CN107447807A CN201710652718.2A CN201710652718A CN107447807A CN 107447807 A CN107447807 A CN 107447807A CN 201710652718 A CN201710652718 A CN 201710652718A CN 107447807 A CN107447807 A CN 107447807A
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 238000009434 installation Methods 0.000 claims abstract description 92
- 241000220317 Rosa Species 0.000 claims abstract description 52
- 238000013461 design Methods 0.000 claims abstract description 49
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 21
- 238000001764 infiltration Methods 0.000 claims description 19
- 230000008595 infiltration Effects 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 15
- 239000010865 sewage Substances 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 208000002925 dental caries Diseases 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 238000011026 diafiltration Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000001351 cycling effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of subsurface stormwater collection system, including collector pipe, pretreatment system and water storage system, pretreatment system includes trash-racking well, settling tank, baffle-box, Rose Box and drop case, collector pipe is connected with trash-racking well, the bottom of trash-racking well and settling tank is connected by abandoned stream pipe with municipal Storm Sewer Network, it is connected between trash-racking well, settling tank, baffle-box, Rose Box and drop case by delivery pipe, flow abandoning apparatus is provided with trash-racking well, water storage system includes water tank and overflow well, and the construction method comprises the following steps：(1) early-stage preparations；(2) installation of pretreated water system；(3) installation of water storage system；(4) installation of sensor；(5) backfill.Practical, construction is simple of the invention, it is easy to use, multi task process is carried out to rainwater by pretreatment system, improves the quality after rainwater treatment, is easy to carry out cycling and reutilization to rainwater, overall construction design is reasonable, easy for installation.
Description
Technical field
The present invention relates to a kind of subsurface stormwater collection system and its construction method.
Background technology
Sponge city refers to that city can adapt to environmental change and reply natural calamity etc. tool as sponge
Have good " elasticity ", water suction when raining, water storage, infiltration, water purification, it is necessary to when by the water stored " release " and be used.Sea
Continuous urban construction follows the principles such as Ecology Precedence, and natural way is combined with artificial measures, is ensuring drainage waterlogging prevention safety
Under the premise of, realize to greatest extent rainwater accumulate in city and rural, infiltration and purification, promote rainwater resource utilization and
Ecological environmental protection.
With the quickening of urbanization process, evaporation, under the serious of natural hydrology cyclic process such as ooze and be obstructed, extreme weather
Increase, the frequent generation of Storm Flood Disasters, cause multiple urban waterlogging, water environment pollution, rainwater resource largely be lost in etc.
Problem, in addition occur meeting rain must flood situation, but level of ground water but reduces year after year, and urban water shortage is extremely serious.Such as moderns
Increasingly pay close attention to water resource development and utilization, rainwater is as a kind of valuable water resource, if effectively collecting and utilizing,
Tremendous contribution will be made to saving the energy.
The content of the invention
Present invention aims at solve above-mentioned technical problem present in prior art, there is provided a kind of subsurface stormwater is collected
System and its construction method, construction is simple is easy to use, carries out multi task process to rainwater by pretreatment system, improves rainwater
Quality after processing, it is easy to carry out cycling and reutilization to rainwater, overall construction design is reasonable, easy for installation.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of subsurface stormwater collection system, it is characterised in that：Including collector pipe, pretreatment system and water storage system, pre- place
Reason system includes trash-racking well, settling tank, baffle-box, Rose Box and drop case, and collector pipe is connected with trash-racking well, trash-racking well with
The bottom of settling tank is connected by abandoned stream pipe with municipal Storm Sewer Network, trash-racking well, settling tank, baffle-box, Rose Box and is fallen
It is connected between water tank by delivery pipe, flow abandoning apparatus is provided with trash-racking well, sewage blocking plate, mistake are evenly arranged with settling tank
Dividing plate is provided with filter box, water storage system includes water tank and overflow well, and water tank is connected by delivery pipe with drop case,
Level sensor is provided with the madial wall of water tank, infiltration plate is evenly arranged with water tank and lift pump, lift pump pass through
Drainpipe is connected with rainwater recycling system, and overflow well is connected by overflow pipe with water tank.
Further, overflow valve is provided with overflow pipe, overflow valve is connected with level sensor, and the left end of overflow well is set
It is equipped with down and oozes pipe, overflow well oozes pipe under and is connected with the system of oozing under city, and overflow valve can be engaged with level sensor
Use, when the rainwater that level sensor is sensed in water tank reaches warning line, overflow valve is opened so that rainwater can be with
Ooze in system and discharge under from city, accelerate the utilization speed of rainwater, avoid rainwater from being overflowed from water tank, cause the wave of water resource
Take.
Further, the surface that pipe is oozed under is evenly arranged with lower seepage hole, and the design of lower seepage hole can be with the diafiltration of rainwater.
Further, flow abandoning apparatus includes cartridge filter, hopper and sealing fixed plate, hopper and is located at the lower section of cartridge filter,
Hopper is connected and fixed with cartridge filter, and hopper is fixedly connected by sealing fixed plate with the madial wall of trash-racking well, cartridge filter
Design can filter the suspended impurity in rainwater, avoid suspended impurity from entering in rain water collecting system and cause in pipeline
Block, influence actual use, the design of hopper can enter municipal Storm Sewer Network in order to early-stage rainwater and suspended impurity
Focused on, sealing the design of fixed plate can fix in order to the installation of flow abandoning apparatus, and overall construction design is more tight
Gather together reason.
Further, diafiltration hole is evenly arranged with the lateral wall of cartridge filter, be respectively arranged with left and right sides of cartridge filter into
The mouth of a river and discharge outlet, water inlet are communicated with collector pipe, and discharge outlet is communicated by delivery pipe with settling tank, and the top of cartridge filter is set
Limiting plate is equipped with, limiting plate matches with trash-racking well, and the design of limiting plate can be used in combination with sealing fixed plate, enter one
The fixed flow abandoning apparatus of step, improve the stability of structure.
Further, dividing plate includes lateral partitions and vertical baffle, is provided with perforation in lateral partitions, lateral partitions and perpendicular
Rose Box is divided at least five cavity to dividing plate, is provided with filter screen in cavity, lateral partitions and vertical baffle are set
Rose Box can be partitioned into multiple cavities by meter, extend residence time of the rainwater in Rose Box, pass through the mistake in different cavity body
Screen net carries out multiple times of filtration processing to rainwater, effectively improves the quality after rainwater treatment, the design of perforation can realize cavity
Between be mutually communicated, design it is more scientific and reasonable.
Further, flow valve is provided with the delivery pipe between baffle-box and Rose Box, the design of flow valve can control
The overall collection rate of rainwater, change the size of flow valve according to the rainfall size of reality, avoid rainwater-collecting speed slower
The deposition of ground rainwater is caused, it is rational in infrastructure.
Further, stair-step and mixing component being provided with drop case, mixing component is located at the top of stair-step,
Mixing component includes agitating shaft and paddle, and paddle is uniformly arranged on agitating shaft, and the design of stair-step can improve rain
The mobile performance of water, the clarity of rainwater is improved, the recycling for rainwater of being more convenient for, the design of mixing component can be with rank
Halfpace rank is used in combination, and further improves the mobile performance of rainwater, and auxiliary of the mixing component without other power, only
Realize the rotation of paddle by the impulsive force can of rainwater, structure design more it is ingenious rationally.
A kind of construction method of subsurface stormwater collection system described above, comprises the following steps：
1) early-stage preparations：
(1) workmen first is according to the region of reality, select suitable place as the collection of rainwater water source at, then tie
Geology, orographic condition and the water catchment area feature of surrounding enviroment are closed, arranges the plane and vertical position of Rainwater collection system,
And the drawn design drawing of technical staff, determines design size；
(2) according to the conventional most long rainfall summation in construction city and the size of determination foundation ditch；
(3) according to design drawing and design size excavation pit, until the depth of foundation ditch reaches 12~18m, carry foundation ditch
Bottom surface leveling, while foundation ditch bottom lay waterproof geotextiles；
2) installation of pretreated water system：
(1) trash-racking well, settling tank, baffle-box, Rose Box and drop case are arranged on by foundation ditch according to design drawing successively
It is interior, first according to design drawing, carry out bottom in the installed position of trash-racking well and increase processing, pass through backfill so that block dirt
15~25m vertical drop between the installation bottom surface of well and the installation bottom surface of settling tank be present, pass through setting for difference in height structure
Meter accelerates the collection rate of rainwater, and without the auxiliary of other actuating units, rainwater relies only on gravitational difference effect, flows rapidly into
In settling tank, at the same ensure setting height(from bottom) is not present between settling tank, baffle-box, Rose Box and drop case it is poor, it is settling tank, slow
Rush case, Rose Box and drop case to be installed on the same level bottom surface in foundation ditch, and ensure settling tank, baffle-box, mistake
Spacing distance between filter box and drop case reaches 65~85cm, consequently facilitating the installation of delivery pipe, is ensuring that rainwater is defeated
Send simultaneously, effectively plan the installation route of delivery pipe, reduce the crooked route of delivery pipe, save material, improve being completely embedded property
Can, the installation of delivery pipe is carried out further according to the actual size of settling tank, baffle-box, Rose Box and the case that drops, will by delivery pipe
It is connected between settling tank, baffle-box, Rose Box and drop case, and reserves the link position of good collector pipe and abandoned stream pipe；
(2) will be connected according to reserved location between collector pipe and trash-racking well, further according to abandoned stream pipe reserved location and city
The physical location of blow-off line, the installation route of optimal abandoned stream pipe is selected, further according to installation route by trash-racking well, settling tank
Bottom between abandoned stream pipe and municipal Storm Sewer Network by connecting；
(3) according to the actual size of trash-racking well, the actual size and installation site of flow abandoning apparatus are determined, first will filtering
Cylinder hopper between connect and fix, further according to the actual size and trash-racking well of cartridge filter and hopper size determine it is close
The installation site of sealing fixed board, fixed plate will be sealed and be installed to the position specified, then by assembled good cartridge filter and hopper card
Enter into sealing fixed plate, while the size of limiting plate is determined according to the reserved thickness of cartridge filter and trash-racking well top, will be spacing
Sleeve-board is located at the upper end of cartridge filter, further fixes cartridge filter, improves the structural stability can of flow abandoning apparatus, can more resist rain
The impact of water；
(4) according to the actual size of settling tank, the size, installation site and quantity of sewage blocking plate are determined, then dirt will be blocked successively
Plate is installed in settling tank, and ensures to be spaced 20cm between two neighboring sewage blocking plate, improves rainwater settling rate and precipitation matter
Amount；
(5) size of lateral partitions is determined according to the internal structure of Rose Box, is divided into Rose Box by lateral partitions
Lower two cavitys, length and lateral partitions further according to lateral partitions between two madial walls above and below Rose Box it is actual away from
From the installation number and actual size for determining vertical baffle, so as to continue to split between upper and lower two cavitys, while in transverse direction
Perforation is opened up on dividing plate, it is ensured that the circulation between cavity, and it is respectively mounted in each cavity the sieves of corresponding size
Net, while Rose Box size is reduced, residence time of the rainwater in Rose Box is may insure again, by multiple filtration, is had
Effect improves the quality after dmp filter, reduces the granule foreign in rainwater；
(6) the optimal shoulder height and number of steps of stair-step are determined according to the actual size of drop case, is incited somebody to action with stone
Stair-step is put up, and after stair-step is put up, the installation number of mixing component is determined further according to the installation site of stair-step
Amount and size, mixing component is installed to optimum position, rainwater enters in drop case, mixing component is impacted so that
Paddle is rotated by the impulsive force of rainwater, and rainwater is stirred, and further increases the mobile performance of rainwater, while rainwater
Acted on by the drop of stair-step, the oxygen content being effectively increased in rainwater, improve the clarity of rainwater so that rainwater treatment
Better quality, the reuse for rainwater of being more convenient for.
3) installation of water storage system：
(1) installation site of water tank is determined according to the installation site of pretreatment system, and according to the water tank of determination
Volume select suitable water tank, while the installation number of water tank is determined according to local most long rainfall summation, by water storage
Installed side by side between tank, and water tank arranged side by side is connected with delivery pipe, it is ensured that the connection between adjacent water tank, and storing up
Installation infiltration plate in water pot, the quantity of infiltration plate is determined according to the actual size of water tank, then infiltration plate is arranged on storage successively
In water pot, water tank is partitioned at least 3 cavitys by infiltration plate, installs lift pump admittedly in the cavity farthest away from plunge pool
Set, and the optimal installation road of drainpipe is determined according to the physical location of rainwater recycling system and the installation site of water tank
It line, will be connected between drainpipe and lift pump, rainwater recycling system, and ensure the close performance of junction；
(2) after water tank installs, then carry out the installation of overflow well, after overflow well is installed, further according to water tank and
The actual installation position of overflow well determines the optimal installation route of overflow pipe, will be installed between overflow pipe and water tank, overflow well
Fix；
4) installation of sensor：
(1) warning line in water tank is determined according to the actual size of water tank, and water is installed at warning line
Level sensor, when the amount of rainfall in water tank reaches warning line, overflow valve is opened, and is oozed by rainwater recycling system with
The dual use of system, rainwater is effectively avoided to overflow the waste for causing water resource；
(2) flow valve is installed in the delivery pipe between buffer pool and filtering ponds, then overflow valve is installed in overflow pipe,
The processing speed of rainwater is strictly controlled by flow valve, the adjustment of flow valve is carried out according to the size of rainfall so that rainwater
Processing more science, opening and closing automatically for overflow well is realized by overflow valve, realizes the intelligent behaviour of whole system
Make, without manually operated；
5) backfill：
After whole system installation, trial operation is carried out to whole system, it is ensured that whole system is normally transported before backfill
OK, then to foundation ditch soil landfill is carried out back.
The present invention is by adopting the above-described technical solution, have the advantages that：
1st, during rainfall of the present invention, rainwater is entered in subsurface stormwater collection system from collector pipe, and rainwater, which first passes around, blocks dirt
Well removes the suspended impurity in rainwater, enters back into settling tank, by the interception function of sewage blocking plate so that in rainwater
Granule foreign, mud etc. precipitate, and are drained into municipal Storm Sewer Network and are focused on from the bottom of settling tank, and pass through and sink
Rainwater after the processing of shallow lake, which is then entered in baffle-box, enters row buffering reduced pressure treatment, slows down the pressure of subsurface stormwater collection system, keeps away
Exempt from the excessive paralysis for causing subsurface stormwater collection system of rainfall, rainwater is entered in Rose Box after baffle-box is handled, warp
The filtration of multilayer filter screen is crossed, by the residual particles contaminant filter in rainwater, further improves the matter after rainwater treatment
Amount, rainwater enter back into drop case and carry out drop processing so that the clarity after rainwater treatment is more preferable, and then rainwater enters
Into water storage system, being handled by the further infiltration of the infiltration plate in storage tank so that the residual particles in rainwater remove,
Overall construction design more compact and reasonable；
2nd, it is drained into rainwater recycling system and is reused by lift pump after rainwater treatment in the present invention, and
When precipitation is larger, when water level reaches warning line in water tank, overflow valve is opened so that part rainwater can be from overflow
Well, which is entered under city, oozes system, so as to improve drainage efficiency, prevents waterlogging, structure design more it is ingenious rationally.
Practical, construction is simple of the invention, it is easy to use, multi task process is carried out to rainwater by pretreatment system, carried
Quality after high rainwater treatment, it is easy to carry out cycling and reutilization to rainwater, overall construction design is reasonable, easy for installation.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of a kind of subsurface stormwater collection system of the present invention and its construction method；
Fig. 2 is the structural representation of flow abandoning apparatus in the present invention.
In figure, 1- collector pipes；2- trash-racking wells；3- baffle-boxs；4- Rose Boxes；5- drop casees；6- delivery pipes；7- abandoned streams fill
Put；8- sewage blocking plates；9- water tanks；10- overflow wells；11- level sensors；12- permeates plate；13- lift pumps；14- drainpipes；
15- overflow pipes；16- overflow valves；Pipe is oozed under 17-；18- cartridge filters；19- hoppers；20- seals fixed plate；21- is percolated hole；
22- water inlets；23- discharge outlet；24- limiting plates；25- lateral partitions；26- vertical baffles；27- perforates；28- filter screens；
29- flow valves；30- stair-steps；31- agitating shafts；32- paddles；33- settling tanks；34- abandoned stream pipes.
Embodiment
As shown in figure 1, be a kind of subsurface stormwater collection system of the present invention, including collector pipe 1, pretreatment system and water storage
System, pretreatment system include trash-racking well 2, settling tank 33, baffle-box 3, Rose Box 4 and drop case 5, collector pipe 1 and trash-racking well
2 are connected, and the bottom of trash-racking well 2 and settling tank 33 is connected by abandoned stream pipe 34 with municipal Storm Sewer Network, trash-racking well 2, sink
It is connected between shallow lake case 33, baffle-box 3, Rose Box 4 and drop case 5 by delivery pipe 6, flow abandoning apparatus is provided with trash-racking well 2
7, flow abandoning apparatus 7 includes cartridge filter 18, hopper 19 and sealing fixed plate 20, is evenly arranged with the lateral wall of cartridge filter 18
Hole 21 is percolated, the left and right sides of cartridge filter 18 is respectively arranged with water inlet 22 and discharge outlet 23, water inlet 22 and the phase of collector pipe 1
Logical, discharge outlet 23 is communicated by delivery pipe 6 with settling tank 33, and the top of cartridge filter 18 is provided with limiting plate 24, limiting plate 24 and
Trash-racking well 2 matches, and the design of limiting plate 24 can be used in combination with sealing fixed plate 20, further fix flow abandoning apparatus
7, the stability of structure is improved, hopper 19 is located at the lower section of cartridge filter 18, and hopper 19 connects and fixes with cartridge filter 18,
Hopper 19 is fixedly connected by sealing fixed plate 20 with the madial wall of trash-racking well 2, and the design of cartridge filter 18 can be by rainwater
Suspended impurity filtering, avoid suspended impurity from entering in rain water collecting system the blocking caused in pipeline, influence actual
Using, the design of hopper 19 can enter municipal Storm Sewer Network and be focused in order to early-stage rainwater and suspended impurity,
The design of sealing fixed plate 20 can be fixed in order to the installation of flow abandoning apparatus 7, overall construction design more compact and reasonable.
Sewage blocking plate 8 is evenly arranged with settling tank 33, stream is provided with the delivery pipe 6 between baffle-box 3 and Rose Box 4
Valve 29 is measured, the design of flow valve 29 can control the overall collection rate of rainwater, change flow according to the rainfall size of reality
The size of valve 29, avoid rainwater-collecting speed from causing the deposition of ground rainwater more slowly, it is rational in infrastructure, be provided with Rose Box 4 every
Plate, dividing plate include lateral partitions 25 and vertical baffle 26, are provided with perforation 27 in lateral partitions 25, lateral partitions 25 and vertical
Rose Box 4 is divided at least 5 cavitys by dividing plate 26, and filter screen 28, lateral partitions 25 and vertical baffle are provided with cavity
Rose Box 4 can be partitioned into multiple cavities by 26 design, extend residence time of the rainwater in Rose Box 4, pass through different cavity
Internal filter screen 28 carries out multiple times of filtration processing to rainwater, effectively improves the quality after rainwater treatment, and perforating 27 sets
Meter can realize being mutually communicated between cavity, and design is more scientific and reasonable.
Stair-step 30 and mixing component are provided with drop case 5, mixing component is located at the top of stair-step 30, stirred
Mixing component includes agitating shaft 31 and paddle 32, and paddle 32 is uniformly arranged on agitating shaft 31, and the design of stair-step 30 can
To improve the mobile performance of rainwater, the clarity of rainwater is improved, the recycling for rainwater of being more convenient for, the design of mixing component
It can be used in combination with stair-step 30, further improve the mobile performance of rainwater, and mixing component is without other power
Auxiliary, the impulsive force can for relying only on rainwater realizes the rotation of paddle 32, structure design more it is ingenious rationally.
Water storage system includes water tank 9 and overflow well 10, and water tank 9 is connected by delivery pipe 6 with drop case 5, water storage
Level sensor 11 is provided with the madial wall of tank 9, infiltration plate 12 and lift pump 13, lift pump are evenly arranged with water tank 9
13 are connected by drainpipe 14 with rainwater recycling system, and overflow well 10 is connected by overflow pipe 15 with water tank 9, overflow
Overflow valve 16 is provided with pipe 15, overflow valve 16 is connected with level sensor 11, and the left end of overflow well 10, which is provided with down, oozes pipe
17, overflow well 10 oozes pipe 17 under and is connected with the system of oozing under city, under ooze the surface of pipe 17 and be evenly arranged with lower seepage hole,
The design of lower seepage hole can be used in combination with the diafiltration of rainwater, overflow valve 16 with level sensor 11, work as level sensor
When device 11 senses that the rainwater in water tank 9 reaches warning line, overflow valve 16 is opened so that rainwater can ooze under city
Discharged in system, accelerate the utilization speed of rainwater, avoid rainwater from being overflowed from water tank 9, cause the waste of water resource.
A kind of construction method of subsurface stormwater collection system described above, comprises the following steps：
1) early-stage preparations：
(1) workmen first is according to the region of reality, select suitable place as the collection of rainwater water source at, then tie
Geology, orographic condition and the water catchment area feature of surrounding enviroment are closed, arranges the plane and vertical position of Rainwater collection system,
And the drawn design drawing of technical staff, determines design size；
(2) according to the conventional most long rainfall summation in construction city and the size of determination foundation ditch；
(3) according to design drawing and design size excavation pit, until the depth of foundation ditch reaches 12~18m, carry foundation ditch
Bottom surface leveling, while foundation ditch bottom lay waterproof geotextiles；
2) installation of pretreated water system：
(1) trash-racking well 2, settling tank 33, baffle-box 3, Rose Box 4 and drop case 5 are arranged on successively according to design drawing
In foundation ditch, first according to design drawing, carry out bottom in the installed position of trash-racking well 2 and increase processing, by backfill, make
The vertical drop that 15~25m between the installation bottom surface of trash-racking well 2 and the installation bottom surface of settling tank 33 be present is obtained, passes through height
The collection rate of rainwater is accelerated in the design of poor structure, and without the auxiliary of other actuating units, rainwater relies only on gravitational difference effect,
Flow rapidly into settling tank 33, while ensure installation is not present between settling tank 33, baffle-box 3, Rose Box 4 and drop case 5
Difference in height, settling tank 33, baffle-box 3, Rose Box 4 and drop case 5 are installed on the same level bottom surface in foundation ditch, and
And ensure that the spacing distance between settling tank 33, baffle-box 3, Rose Box 4 and drop case 5 reaches 65~85cm, consequently facilitating
The installation of delivery pipe 6, ensuring rainwater conveying simultaneously, effectively planning the installation route of delivery pipe 6, reduce the bending of delivery pipe 6
Path, material is saved, raising is completely embedded performance, further according to the reality of settling tank 33, baffle-box 3, Rose Box 4 and the case 5 that drops
Size carries out the installation of delivery pipe 6, will be connected by delivery pipe 6 between settling tank 33, baffle-box 3, Rose Box 4 and drop case 5
It is logical, and reserve the link position of good collector pipe 1 and abandoned stream pipe 34；
(2) will be connected according to reserved location between collector pipe 1 and trash-racking well 2, further according to the reserved location of abandoned stream pipe 34 and
The physical location of urban sewage pipeline, the installation route of optimal abandoned stream pipe 34 is selected, further according to installation route by trash-racking well 2, heavy
The bottom of shallow lake case 33 between abandoned stream pipe 34 and municipal Storm Sewer Network by connecting；
(3) according to the actual size of trash-racking well 2, the actual size and installation site of flow abandoning apparatus 7 is determined, was incited somebody to action first
Connected and fixed between filter cylinder 18 and hopper 19, further according to the actual size and trash-racking well 2 of cartridge filter 18 and hopper 19
Size determines the installation site of sealing fixed plate 20, will seal fixed plate 20 and is installed to the position specified, then by assembled good mistake
Filter cylinder 18 and hopper 19 are snapped onto in sealing fixed plate 20, while according to cartridge filter 18 and the reserved thickness on the top of trash-racking well 2
The size of limiting plate 24 is determined, limiting plate 24 is set in the upper end of cartridge filter 18, further fixed cartridge filter 18, raising is abandoned
The structural stability can of device 7 is flowed, can more resist the impact of rainwater；
(4) according to the actual size of settling tank 33, the size, installation site and quantity of sewage blocking plate 8 are determined, then successively will
Sewage blocking plate 8 is installed in settling tank 33, and ensures to be spaced 20cm between two neighboring sewage blocking plate 8, improves rainwater settling rate
With precipitation quality；
(5) size of lateral partitions 25 is determined according to the internal structure of Rose Box 4, by lateral partitions 25 by Rose Box 4
Be divided into two cavitys up and down, length and lateral partitions 25 further according to lateral partitions 25 apart from Rose Box about 4 two madial walls it
Between actual range determine the installation number and actual size of vertical baffle 26, so as to continue between upper and lower two cavitys point
Cut, while perforation 27 is opened up in lateral partitions 25, it is ensured that the circulation between cavity, and it is respectively mounted phase in each cavity
The filter screen 28 of correspondingly-sized, while 4 size of Rose Box is reduced, stop of the rainwater in Rose Box 4 is may insure again
Time, by multiple filtration, the quality after dmp filter is effectively improved, reduces the granule foreign in rainwater；
(6) the optimal shoulder height and number of steps of stair-step 30 are determined according to the actual size of drop case 5, with stone
Block puts up stair-step 30, and after stair-step 30 is put up, stirring group is determined further according to the installation site of stair-step 30
The installation number and size of part, mixing component is installed to optimum position, rainwater enters in drop case 5, mixing component is entered
Row impact so that paddle 32 rotates by the impulsive force of rainwater, is stirred to rainwater, further increases the flowing of rainwater
Performance, while rainwater is acted on by the drop of stair-step 30, the oxygen content being effectively increased in rainwater, improves the limpid of rainwater
Degree so that the better quality of rainwater treatment, the reuse for rainwater of being more convenient for.
3) installation of water storage system：
(1) installation site of water tank 9 is determined according to the installation site of pretreatment system, and according to the water storage of determination
The volume of tank 9 selectes suitable water tank 9, while the installation number of water tank 9 is determined according to local most long rainfall summation,
It will side by side be installed between water tank 9, and water tank 9 arranged side by side connected with delivery pipe 6, it is ensured that the company between adjacent water tank 9
It is logical, and the installation infiltration plate 12 in water tank 9, according to the quantity of the actual size of water tank 9 determination infiltration plate 12, then according to
Secondary that infiltration plate 12 is arranged in water tank 9, water tank 9 is partitioned at least three cavity by infiltration plate 12, farthest away from drop
The installation of lift pump 13 is fixed in the cavity in pond, and according to the physical location of rainwater recycling system and the installation of water tank 9
Position determines the optimal installation route of drainpipe 14, will be connected between drainpipe 14 and lift pump 13, rainwater recycling system,
And ensure the close performance of junction；
(2) after water tank 9 installs, then the installation of overflow well 10 is carried out, after overflow well 10 is installed, further according to storage
The actual installation position of water pot 9 and overflow well 10 determines the optimal installation route of overflow pipe 15, by overflow pipe 15 and water tank 9,
Installation fixes between overflow well 10；
4) installation of sensor：
(1) warning line in water tank 9 is determined according to the actual size of water tank 9, and installed at warning line
Level sensor 11, when the amount of rainfall in water tank 9 reaches warning line, overflow valve 16 is opened, and passes through rainwater recycling system
The dual use of system is oozed with, effectively avoids rainwater from overflowing the waste for causing water resource；
(2) installation flow valve 29 in the delivery pipe 6 between buffer pool and filtering ponds, then installation is overflow in overflow pipe 15
Valve 16 is flowed, the processing speed of rainwater is strictly controlled by flow valve 29, the tune of flow valve 29 is carried out according to the size of rainfall
It is whole so that the processing of rainwater more science, opening and closing automatically for overflow well 10 to be realized by overflow valve 16, realized whole
The intellectualized operation of individual system, without manually operated；
5) backfill：
After whole system installation, trial operation is carried out to whole system, it is ensured that whole system is normally transported before backfill
OK, then to foundation ditch soil landfill is carried out back.
The specific embodiment of the present invention is these are only, but the technical characteristic of the present invention is not limited thereto.It is any with this hair
Based on bright, to solve essentially identical technical problem, essentially identical technique 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)
- A kind of 1. subsurface stormwater collection system, it is characterised in that：It is described pre- including collector pipe, pretreatment system and water storage system Processing system includes trash-racking well, settling tank, baffle-box, Rose Box and drop case, the collector pipe and is connected with the trash-racking well, The bottom of the trash-racking well and the settling tank is connected by abandoned stream pipe with municipal Storm Sewer Network, the trash-racking well, described It is connected between settling tank, the baffle-box, the Rose Box and the drop case by delivery pipe, is set in the trash-racking well There is flow abandoning apparatus, sewage blocking plate is evenly arranged with the settling tank, dividing plate, the water storage system bag are provided with the Rose Box Water tank and overflow well are included, the water tank is connected by the delivery pipe with the drop case, the inner side of the water tank Level sensor is provided with wall, infiltration plate is evenly arranged with the water tank and lift pump, the lift pump pass through draining Pipe is connected with rainwater recycling system, and the overflow well is connected by overflow pipe with the water tank.
- 2. a kind of subsurface stormwater collection system according to claim 1 and its construction method, it is characterised in that：The overflow Overflow valve is provided with pipe, the overflow valve is connected with the level sensor, and the left end of the overflow well, which is provided with down, to be oozed Pipe, the overflow well are connected by oozing pipe under described with the system of oozing under city.
- A kind of 3. subsurface stormwater collection system stated according to claim 2, it is characterised in that：The surface that pipe is oozed under described is uniformly set It is equipped with lower seepage hole.
- A kind of 4. subsurface stormwater collection system according to claim 1, it is characterised in that：The flow abandoning apparatus includes filtering Cylinder, hopper and sealing fixed plate, the hopper are located at the lower section of the cartridge filter, the hopper and the cartridge filter card Fixation is connect, the hopper is fixedly connected by the sealing fixed plate with the madial wall of the trash-racking well.
- A kind of 5. subsurface stormwater collection system according to claim 4, it is characterised in that：On the lateral wall of the cartridge filter Diafiltration hole is evenly arranged with, water inlet and discharge outlet, the water inlet and institute are respectively arranged with left and right sides of the cartridge filter State collector pipe to communicate, the discharge outlet is communicated by the delivery pipe with the settling tank, and the top of the cartridge filter is provided with Limiting plate, the limiting plate match with the trash-racking well.
- A kind of 6. subsurface stormwater collection system according to claim 1, it is characterised in that：The dividing plate includes lateral partitions And vertical baffle, perforation, the lateral partitions and the vertical baffle are provided with the lateral partitions by the Rose Box point At least five cavity is cut into, filter screen is provided with the cavity.
- A kind of 7. subsurface stormwater collection system according to claim 1, it is characterised in that：The baffle-box and the filtering Flow valve is provided with delivery pipe between case.
- A kind of 8. subsurface stormwater collection system according to claim 1, it is characterised in that：Rank is provided with the drop case Halfpace rank and mixing component, the mixing component are located at the top of the stair-step, the mixing component include agitating shaft and Paddle, the paddle are uniformly arranged on the agitating shaft.
- 9. using a kind of construction method of subsurface stormwater collection system as claimed in claim 1, it is characterised in that:Including as follows Step：1) early-stage preparations：(1) first workmen according to reality region, select suitable place as the collection of rainwater water source at, in conjunction with periphery Geology, orographic condition and the water catchment area feature of environment, arrange the plane and vertical position of Rainwater collection system, and technology The drawn design drawing of personnel, determines design size；(2) according to the conventional most long rainfall summation in construction city and the size of determination foundation ditch；(3) according to design drawing and design size excavation pit, until the depth of foundation ditch reaches 12~18m, carry the bottom of foundation ditch Face flattens, while lays waterproof geotextiles in the bottom of foundation ditch；2) installation of pretreated water system：(1) trash-racking well, settling tank, baffle-box, Rose Box and drop case are arranged in foundation ditch successively according to design drawing, first According to design drawing, carry out bottom in the installed position of trash-racking well and increase processing, pass through backfill so that the installation of trash-racking well 15~25m vertical drop between bottom surface and the installation bottom surface of settling tank be present, rain is accelerated by the design of difference in height structure The collection rate of water, without the auxiliary of other actuating units, rainwater relies only on gravitational difference effect, flows rapidly into settling tank, Simultaneously ensure settling tank, baffle-box, Rose Box and drop case between be not present setting height(from bottom) it is poor, settling tank, baffle-box, Rose Box It is installed in drop case on the same level bottom surface in foundation ditch, and ensures settling tank, baffle-box, Rose Box and drop case Between spacing distance reach 65~85cm, consequently facilitating the installation of delivery pipe, ensuring rainwater conveying simultaneously, effectively planning The installation route of delivery pipe, reduces the crooked route of delivery pipe, saves material, and raising is completely embedded performance, further according to settling tank, The actual size of baffle-box, Rose Box and the case that drops carries out the installation of delivery pipe, by delivery pipe by settling tank, baffle-box, mistake It is connected between filter box and drop case, and reserves the link position of good collector pipe and abandoned stream pipe；(2) will be connected according to reserved location between collector pipe and trash-racking well, further according to abandoned stream pipe reserved location and urban sewage The physical location of pipeline, the installation route of optimal abandoned stream pipe is selected, lead to the bottom of trash-racking well, settling tank further according to installation route Cross between abandoned stream pipe and municipal Storm Sewer Network and connect；(3) according to the actual size of trash-racking well, the actual size and installation site of flow abandoning apparatus is determined, first by cartridge filter and is arranged Connected and fixed between hopper, sealing fixed plate is determined further according to the size of the actual size and trash-racking well of cartridge filter and hopper Installation site, fixed plate will be sealed and be installed to the position specified, then assembled good cartridge filter and hopper are snapped onto into sealing In fixed plate, while the size of limiting plate is determined according to the reserved thickness on cartridge filter and trash-racking well top, limiting plate is set in The upper end of cartridge filter, cartridge filter is further fixed, improve the structural stability can of flow abandoning apparatus, can more resist the impact of rainwater；(4) according to the actual size of settling tank, the size, installation site and quantity of sewage blocking plate are determined, then successively pacifies sewage blocking plate It is attached in settling tank, and ensures to be spaced 20cm between two neighboring sewage blocking plate, improves rainwater settling rate and precipitation quality；(5) size of lateral partitions is determined according to the internal structure of Rose Box, Rose Box is divided into upper and lower two by lateral partitions Individual cavity, the actual range of length and lateral partitions between two madial walls above and below Rose Box further according to lateral partitions determine The installation number and actual size of vertical baffle, so as to continue to split between upper and lower two cavitys, while in lateral partitions Open up perforation, it is ensured that the circulation between cavity, and the filter screen of corresponding size is respectively mounted in each cavity, reducing While Rose Box size, residence time of the rainwater in Rose Box is may insure again, by multiple filtration, effectively improves rainwater Quality after filtering, reduce the granule foreign in rainwater；(6) the optimal shoulder height and number of steps of stair-step are determined according to the actual size of drop case, with stone by ladder Step is put up, after stair-step is put up, further according to stair-step installation site determine mixing component installation number and Size, mixing component is installed to optimum position, rainwater enters in drop case, mixing component is impacted so that stirring Leaf is rotated by the impulsive force of rainwater, and rainwater is stirred, and further increases the mobile performance of rainwater, while rainwater passes through rank The drop of halfpace rank acts on, the oxygen content being effectively increased in rainwater, improves the clarity of rainwater so that the quality of rainwater treatment is more It is good, the reuse for rainwater of being more convenient for.3) installation of water storage system：(1) installation site of water tank, and the appearance of the water tank according to determination are determined according to the installation site of pretreatment system Product selectes suitable water tank, while the installation number of water tank is determined according to local most long rainfall summation, by water tank it Between install side by side, and connect water tank arranged side by side with delivery pipe, it is ensured that the connection between adjacent water tank, and in water tank Installation infiltration plate, the quantity of infiltration plate is determined according to the actual size of water tank, then infiltration plate is arranged in water tank successively, Water tank is partitioned at least three cavity by infiltration plate, fixes lift pump installation in the cavity farthest away from plunge pool, and The optimal installation route of drainpipe is determined according to the installation site of the physical location of rainwater recycling system and water tank, by drainpipe Connected between lift pump, rainwater recycling system, and ensure the close performance of junction；(2) after water tank installs, then the installation of overflow well is carried out, after overflow well is installed, further according to water tank and overflow The actual installation position of well determines the optimal installation route of overflow pipe, is fixed being installed between overflow pipe and water tank, overflow well It is good；4) installation of sensor：(1) warning line in water tank is determined according to the actual size of water tank, and water level is installed at warning line and passed Sensor, when the amount of rainfall in water tank reaches warning line, overflow valve is opened, and oozes system with by rainwater recycling system Dual use, rainwater is effectively avoided to overflow the waste for causing water resource；(2) flow valve is installed in the delivery pipe between buffer pool and filtering ponds, then overflow valve is installed in overflow pipe, pass through stream Amount valve strictly controls the processing speed of rainwater, the adjustment of flow valve is carried out according to the size of rainfall so that the processing of rainwater is more The science added, opening and closing automatically for overflow well is realized by overflow valve, the intellectualized operation of whole system is realized, without people To be manually operated；5) backfill：After whole system installation, trial operation is carried out to whole system, it is ensured that whole system normal operation before backfill, then Soil landfill is carried out back to foundation ditch.
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| CN115045364A (en) * | 2022-06-10 | 2022-09-13 | 中交二公局东萌工程有限公司 | Rainwater collecting and utilizing system for construction period of highway reconstruction and extension project |
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