CN112031114A - Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method - Google Patents

Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method Download PDF

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Publication number
CN112031114A
CN112031114A CN202011028230.0A CN202011028230A CN112031114A CN 112031114 A CN112031114 A CN 112031114A CN 202011028230 A CN202011028230 A CN 202011028230A CN 112031114 A CN112031114 A CN 112031114A
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China
Prior art keywords
rainwater
storage
seepage
sponge
pipe
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Chinese (zh)
Inventor
李洪澄
何震
白伟岚
付小江
王国玉
孙天雨
杨耸
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Tianjin Municipal Engineering Design and Research Institute
China Urban Construction Design and Research Institute Co Ltd
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Tianjin Municipal Engineering Design and Research Institute
China Urban Construction Design and Research Institute Co Ltd
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Priority to CN202011028230.0A priority Critical patent/CN112031114A/en
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
    • 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
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • 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
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/103—Naturals or landscape retention bodies, e.g. ponds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • E04H6/428—Devices for collecting oil or other fluids under parked cars
    • 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
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
    • 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
    • Y02A20/40—Protecting water resources

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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)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

The invention relates to the field of sponge city construction, and provides a seepage stagnation type storage regulation sponge parking lot, which comprises: a hardening site (1) comprising a road (11) and a plurality of parking spaces (12); the LID rainwater storage facility (2) is arranged around the parking space and is lower than the parking space in height; the water storage device (3) comprises a rainwater inlet (31), a rainwater pipeline (32), a mud trap (33) and a water storage module (34), wherein the rainwater inlet is arranged on the upper surface of the LID rainwater storage facility, and the rainwater inlet and the mud trap as well as the mud trap and the water storage module are connected through rainwater pipelines; and the perforated seepage and drainage pipes (4) are arranged in the soil layer (7) below the rainwater pipeline and are communicated with the mud sinking well, and a plurality of drain holes for draining water to the soil layer are formed in the pipe wall of each perforated seepage and drainage pipe. This parking area can guarantee the infiltration of rainwater to be detained, lets the real effectual infiltration soil of rainwater, reaches the purpose that the sponge "deposits naturally, permeates naturally, natural purification".

Description

Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method
Technical Field
The invention relates to the field of sponge city construction, in particular to a novel seepage stagnation type storage regulation sponge parking lot and a rainwater storage regulation method.
Background
The construction of the sponge city is conducted in China, the concept of the sponge city is continuously understood and accepted by people in the construction process, but with the promotion of the construction of the sponge city, the construction technology of the existing sponge city cannot face heavier working conditions, and particularly cannot effectively solve the problem that rainwater is stored in a parking lot in the sponge construction process.
The main theory in sponge city at present is at first through reducing the comprehensive net flow coefficient in the place thereby reduce the rainwater runoff, and the discharge that produces the runoff rainwater is reduced to the rethread LID retaining facility to reach the sponge city theory of "infiltration stagnation holds net usefulness row" in proper order. But when the idea is applied to a large parking lot, the ground is difficult to fall for the following reasons: firstly, a sponge city needs a large number of permeable facilities to reduce the comprehensive net flow coefficient of a site, the load intensity of the existing permeable facilities cannot reach the load intensity of the traditional non-permeable pavement of the same level, and the maintenance times and frequency of the parking lot are undoubtedly increased for the parking lot with frequent vehicle access; if the maintenance frequency and frequency of the parking lot are reduced, the elevation and grade of the materials used by the permeable facility must be increased, which is not different from the cost input of one-time construction. Secondly, the parking lot belongs to the place with a high hardening area and a small greening area, the greening space is often designed into a belt shape or a point shape, the water storage capacity of the sinking facilities made in the green lands is extremely limited, and the annual runoff total amount control rate required by the place is difficult to achieve, so that a water storage module needs to be built when the indexes are reached, excessive rainwater in the water storage module cannot be completely utilized, and the sponge is often discharged in order to prevent the water body from smelling, and the sponge does not exert the effect of the sponge in fact.
Chinese patent publication No. CN210714001U discloses an ecological parking lot for controlling rainwater runoff, wherein a rainwater garden planting area is arranged on a parking lot body, an anti-seepage membrane is arranged above an original soil layer on the bottom surface of the rainwater garden planting area, a water collecting blind pipe, a gravel layer, a filter layer and a planting soil layer are sequentially arranged above the anti-seepage membrane from bottom to top, and rainwater above the anti-seepage membrane is finally discharged into a municipal rainwater system. This solution has the following drawbacks:
(1) although the method can achieve the purpose of effective peak-shifting drainage, after rainwater permeates into the pebble bed, the rainwater cannot effectively permeate into the ground due to the impermeable membrane and the seepage pipes in the pebble bed, and the requirement of 'seepage in seepage stagnation storage and purification drainage' cannot be met. (2) Because the existence of a large amount of facilities that permeate water in the place leads to the inside of the facility that permeates water of a large amount of flowing water in the afforestation earth, has greatly improved the maintenance cost of nursery stock.
Chinese patent publication No. CN109296231A discloses a sponge ecological parking lot, which comprises a parking space, a plant box, a rainwater storage system and a watering and spraying system, wherein the parking lot collects rainwater with a large water tank, and then the rainwater is sprayed back to the site for recycling through a series of electric control systems with electric control and intelligent capabilities. The parking lot has the following disadvantages: (1) this parking area relies on digital systematic control to carry out the regulation of each item function of sponge completely, needs professional maintainer alignment to carry out periodic inspection and maintenance to need add a large amount of automatically controlled and digital equipment in the one-time construction process, make one-time construction cost and later maintenance expense all very high. (2) The running experience of sponge cities in this few years shows that after rainfall, green plants are irrigated and maintained for 2-3 days, rainwater can smell after being stored in underground water storage facilities for 2 days, and can become black and smelly after being stored for 5 days, so that the use of a parking lot can be influenced by peculiar smell caused by irrigation with the water body. (3) The rainwater is more in suspended substance, adopts the mode of sprinkling irrigation, little sprinkling irrigation to water, can produce great work load to watering facility, very easily damages equipment, consequently need frequently to block up and damage equipment and change, has increased the maintenance cost. (4) All control circuits of the scheme are distributed underground, and safety accidents such as electric leakage and the like are easy to happen if the control circuits are not maintained properly.
Chinese patent publication No. CN111395099A discloses a sponge ecological parking lot, which comprises a drainage system and a plurality of groups of parking units, wherein each group of parking units drains rainwater into a biological retention area, and then drains rainwater into a municipal rainwater system from the biological retention area. The parking lot has the following disadvantages: (1) the drainage areas of the plurality of groups of parking units are provided with vegetable layers, so that the maintenance difficulty is improved, and the device is not suitable for the condition of large load intensity of a parking lot. (2) The vegetation layer is coated by pervious concrete, the concrete is rigid, the plants cannot root downwards, and the vegetation maintenance difficulty is high. (3) The infiltration of rainwater only stops in the surface layer, and excessive rainwater can only be discharged into recycling system or rainwater pipe network, and plain soil layer has blockked rainwater infiltration, can't replenish groundwater, can't reach the requirement of "oozing stagnated and hold and arrange with arranging" middle "and ooze".
Therefore, the sponge parking lot which can be infiltrated, stagnated, stored and discharged in a real sense needs to be developed.
Disclosure of Invention
The technical purpose of the invention is to solve the defects of the prior art and provide a seepage stagnation type storage regulation sponge parking lot and a rainwater storage regulation method, so as to achieve the purposes of seepage, stagnation, storage and drainage.
As one aspect of the present invention, there is provided a stagnation type storage regulation sponge parking lot, including:
the system comprises a hardening field, a control system and a control system, wherein the hardening field comprises a road and a plurality of parking spaces;
the LID rainwater storage facility is arranged around the parking space and is lower than the parking space in height;
the rainwater pipeline, the mud trap and the water storage module are all arranged in a soil layer below the hardening site and/or the LID rainwater storage facility, and the rainwater pipeline and the mud trap as well as the mud trap and the water storage module are connected through the rainwater pipeline;
and the perforated seepage and drainage pipes are arranged in the soil layer below the rainwater pipeline and are communicated with the mud pit, and a plurality of drain holes for draining water to the soil layer are formed in the pipe walls of the perforated seepage and drainage pipes.
According to an exemplary embodiment of the invention, the perforated percolating line is arranged at a position of at least 800mm below the hard ground and/or the LID rain water storage facility.
According to an exemplary embodiment of the invention, a gravel cushion is arranged around the perforated percolating tube.
According to an example embodiment of the present invention, the water storage device further comprises a plurality of water storage pipes, the mud-depositing wells are plural, each water storage pipe is connected with two mud-depositing wells and connected with the plurality of perforated percolating pipes, and the height of the water storage pipe is lower than that of the rainwater pipeline.
According to an exemplary embodiment of the invention, the plurality of perforated percolating tubes are arranged in parallel at equal intervals.
According to an exemplary embodiment of the invention, the height of the perforated percolating tube is 50-150mm higher than the bottom of the reservoir tube.
According to an exemplary embodiment of the invention, the diameter of the water storage pipe is larger than or equal to the diameter of the storm water pipe.
According to an exemplary embodiment of the invention, the diameter of the water storage pipe is 200-400mm larger than the diameter of the storm water pipe.
According to an example embodiment of the present invention, the cross-sectional area of the rainwater pipeline satisfies the following formula one:
Q＝Av；
wherein Q is the design flow and the unit is m3/s；
A is the sectional area of the rainwater pipeline, and the unit is m2；
v is the flow velocity in m/s.
The design flow is calculated according to the local rainfall.
According to an exemplary embodiment of the invention, the diameter of the reservoir pipe satisfies the following formula two:
Figure BDA0002702799390000031
wherein D is the diameter of the water storage pipe, and the unit is m;
v is the amount of rainwater required to be stored in the land parcel, and the unit is m3；
S is the paving area of the gravel layer and the unit is m2；
h is the thickness of the crushed stone layer and the unit is m;
n is the porosity of the gravel layer;
l is the length of a water storage pipeline in the land mass, and the unit is m;
pi is 3.1415926;
and when the diameter calculated by the formula II is smaller than the diameter of the rainwater pipeline, the diameter value of the water storage pipe is the diameter of the rainwater pipeline.
According to an exemplary embodiment of the invention, h is 0.3-0.4 m.
According to an exemplary embodiment of the invention, n is 0.19 to 0.32.
The cost of the water storage pipe network is equivalent to that of a rainwater pipeline, the cost is low, and the water storage pipe network has water storage and drainage capabilities, and both the water storage and the drainage capabilities can meet national indexes.
According to an exemplary embodiment of the invention, the diameter of the storm water pipe is larger than the diameter of the perforated percolating pipe.
According to an exemplary embodiment of the invention, the diameter of the perforated percolating tube is 100-200 mm.
According to an exemplary embodiment of the invention, the hardened area is provided with a non-permeable paving material.
According to an exemplary embodiment of the present invention, the hardened ground uses non-permeable asphalt or non-permeable concrete.
According to an example embodiment of the present invention, each parking space is connected to the LID rain water storage facility, each parking space is in a slope structure, and the height of a portion close to the LID rain water storage facility is lower than the height of a portion far away from the LID rain water storage facility.
According to an example embodiment of the invention, the height of the gully is higher than the height of the LID storm water storage facility and lower than the height of the parking space.
According to an example embodiment of the present invention, the stagnation type storage sponge parking lot further includes a plurality of pipe plugs, one end of the perforated seepage pipe is communicated with the mud pit, and the other end is disposed on the ground of the hardened site and/or the LID rainwater storage facility and plugged by the pipe plugs.
According to an exemplary embodiment of the invention, the water storage module is provided at its upper part with an overflow, which is connected to a municipal storm water pipe network system.
According to an example embodiment of the invention, an artificial channel is arranged above the mud pit and is communicated with the ground of the hardware field.
As a second aspect of the present invention, there is provided a rainwater storage method for a stagnation type storage regulation sponge parking lot, comprising the steps of:
rainwater regulation and storage are carried out by adopting the seepage stagnation type regulation and storage sponge parking lot;
draining rainwater from the hardening site into LID rainwater storage facilities;
discharging rainwater exceeding the storage capacity of the LID rainwater storage facility into a hardening site and/or a mud trap below the LID rainwater storage facility through a rainwater port;
rainwater in the mud trap is drained into the soil layer through the perforated seepage and drainage pipe, and rainwater exceeding the storage regulation capacity of the mud trap is drained into the water storage module and/or the municipal rainwater pipe network system.
The invention has the beneficial effects that:
1) the seepage stagnation type regulation sponge parking lot discharges rainwater in a hardening site into LID rainwater regulation and storage facilities, so that the functions of storage and stagnation are realized; rainwater exceeding the LID rainwater storage facility enters the mud pit and is discharged to the soil layer through the perforated seepage pipe, so that the seepage function is realized; rainwater exceeding the storage capacity of the mud pit is discharged into the water storage module, so that the storage and stagnation functions are realized; rainwater exceeding the storage regulation capability of the water storage module is discharged to a municipal rainwater pipe network system, so that the drainage function is realized; the rainwater collected in the water storage module can be pumped out for recycling, and the using function is realized.
The invention is explained in detail in the following aspects:
(1) the parking lot can ensure that rainwater is infiltrated and retained, so that the rainwater can really and effectively infiltrate into soil, and the aims of natural accumulation, natural infiltration and natural purification of the sponge are fulfilled.
(2) The invention improves the performance of the sponge in the field and is easier to combine the index requirement of the sponge with the actual function. If this place is the parking area of mating formation of permeating water, load ability is not strong, can't set up large-scale water storage device in the parking area below, and the position that has the retaining function so only has LID green regulation facility and permeates water the metalling of mating formation down, and the retaining function is not strong. The invention adopts the hardening field, and the water storage device can be arranged under the hardening field to increase the water storage capacity. Therefore, the invention not only has LID green regulation facility, but also has the water storage function of the gravel layer, and also has the rainwater regulation and storage capacity of combining pipeline water storage with the water storage module, and the realized peak shifting and storage delaying effect is more obvious, thereby practically achieving the concept of sponge requirement.
(3) The invention does not improve the one-time construction cost, but can efficiently reduce the later maintenance operation cost. With the propulsion of sponge cities, the price of sponge construction materials is high, but the hardened site is constructed by utilizing the original mature method of non-permeable hardened pavement, so that the manufacturing cost of the site hardened pavement is reduced, the arranged perforated seepage and drainage pipes are made of PVC-U pipelines, the water storage pipeline is a HDPE double-wall corrugated pipeline, and the two pipelines are both made of the existing mature materials, so that the price is low, and the method is simple and convenient. Especially, water storage pipeline, the real theory is that increase the thickening of original rainwater pipeline to realize retaining and intercommunication purpose, and the cost is in fact not improved the construction cost after accounting, but because the use is ripe hardened pavement technique, need not too much carry out road surface maintenance, especially in the northern area, has more reduced the maintenance cost that uses the freeze thawing of permeable pavement and has brought.
(4) The rainwater is fully utilized to carry out pipeline flushing maintenance, so that not only is the water resource saved, but also the problem that the black and odorous rainwater in the water storage module can not be recycled is solved.
(5) The rainwater which reversely seeps into the ground can provide sufficient water supply guarantee for trees and shrubs with deep root systems, reduce the greening maintenance cost of the field and improve the survival rate of the nursery stocks.
Drawings
Fig. 1 shows a floor layout of a seepage-stagnation type storage regulation sponge parking lot.
FIG. 2 shows a schematic view of a section A-A.
FIG. 3 is a schematic view of a section B-B.
The system comprises a hardening site 1, a road 11, a parking space 12, a LID rainwater storage facility 2, a water storage device 3, a rainwater inlet 31, a rainwater pipeline 32, a mud trap 33, a water storage module 34, a water storage pipe 35, a perforated seepage pipe 4, a pipe plug 5, a gravel cushion 6 and a soil layer 7.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
According to a first embodiment of the present invention, in order to solve the technical barriers encountered in the construction of the sponge city and reduce the operation and maintenance costs of the sponge city, a stagnation type storage regulation sponge parking lot is provided, as shown in fig. 1, including: a hardening site 1, an LID rainwater storage facility 2, a water storage device 3, a plurality of perforated seepage pipes 4 and a plurality of pipe plugs 5.
As shown in fig. 1 and 2, the hardening site 1 includes a road 11 and a plurality of parking spaces 12. The hardened ground adopts non-permeable paving materials, such as: non-permeable asphalt or non-permeable concrete. The LID rain regulation facility 2 is arranged around the parking space 12 and is lower than the parking space 12 in height. Every parking stall 12 all is connected with LID rainwater regulation facility 2, and every parking stall 12 is the slope structure, and the height that is close to the part of LID rainwater regulation facility 2 is less than the height of the part of keeping away from LID rainwater regulation facility 2 for when raining, the rainwater flows into LID rainwater regulation facility 2 from parking stall 12. LID rainwater regulation facility 2 is the green LID rainwater regulation facility of going into of formula of sinking, has planted the plant in the facility for the regulation rainwater.
As shown in fig. 2, beneath the hardened ground 1 and the LID rain storage facility 2 is a layer of soil 7.
As shown in fig. 1-3, a water storage device 3, a plurality of perforated percolating pipes 4 and pipe plugs 5 are arranged in the soil layer 7. The water storage device 3 comprises a rainwater inlet 31, a rainwater pipeline 32, a mud trap 33, a water storage module 34 and a water storage pipe 35, wherein the rainwater inlet 31 is arranged on the upper surface of the LID rainwater storage facility 2 and is an overflow type rainwater inlet, and the height of the rainwater inlet is higher than that of the LID rainwater storage facility 2 and is lower than that of the parking space 12. When LID rainwater regulation facility 2 can't regulate the rainwater, the rainwater can be piled up at LID rainwater regulation facility 2's upper surface, and when reaching inlet for stom water 31's height, the rainwater can flow in inlet for stom water 31. The storm water conduit 32, the mud trap 33, the water storage module 34 and the water storage conduit 35 are all disposed in the soil layer 7 below the hardened ground 1 and/or the LID storm water storage facility 2. The rainwater inlet 31 and the mud trap 33, the mud trap 33 and the water storage module 34 are connected through a rainwater pipeline 32, and every two mud traps 33 are connected through a water storage pipe 35. The rainwater pipeline 32 can calculate the rainwater amount according to the requirement of item 3.2 of the specification GB50014-2006(2016 edition), and then calculate the pipe diameter according to 4.2 hydraulic calculations. Specifically, the diameter of the rainwater pipe 32 is calculated by a sectional area, and the sectional area of the rainwater pipe 32 satisfies the following formula one:
Q＝Av；
wherein Q is the design flow and the unit is m3S; the design flow is calculated according to the local rainfall;
a is the sectional area of the rainwater pipeline, and the unit is m2；
v is the flow velocity in m/s.
An artificial channel communicated with the ground of the hardware field 1 is arranged above the mud trap 33, and a mud trap for settling mud is arranged below the mud trap. The upper portion of the water storage module 34 is provided with an overflow, which is connected to the municipal storm water pipe network system via the storm water pipe 32. Rainwater accumulated by the water storage module 34 can be recycled to the LID rainwater storage facility 2, and then permeates into the soil layer through the perforated seepage pipe 4 or is recycled to other places where rainwater needs to be supplied, so that the rainwater is prevented from being accumulated to cause blackening and smelliness. The diameter of the water storage pipe 35 is larger than that of the rainwater pipe 32, and the height of the water storage pipe 35 is lower than that of the rainwater pipe 32. The diameter of the water storage pipe 35 is 200-400mm larger than that of the rainwater pipe 32 or meets the following formula II:
Figure BDA0002702799390000081
wherein D is the diameter of the water storage pipe, and the unit is m;
v is the amount of rainwater required to be stored in the land parcel, and the unit is m3；
S is the paving area of the gravel layer and the unit is m2；
h is the thickness of the crushed stone layer and the unit is m;
n is the porosity of the gravel layer;
l is the length of a water storage pipeline in the land mass, and the unit is m;
pi is 3.1415926;
when the diameter calculated by the second formula is smaller than the diameter of the rainwater pipe 32, the diameter value of the water storage pipe 35 is the diameter of the rainwater pipe 32.
The water storage pipe 35 is made of mature HDPE double-wall corrugated pipes, so that the water storage pipe 35 not only has the function of communicating the mud caisson 33, but also has a strong water storage function. The material cost of sclerosis place 1, rainwater pipeline 32, mud trap 33, retaining module 34 and water storage pipe 35 is low, does not need frequent maintenance and change, can also reach the effect of good regulation rainwater, more is applicable to the parking area that the car frequently came in and go out.
As shown in fig. 1-3, a plurality of perforated percolating pipes 4 are arranged in the soil layer 7 below the rainwater pipeline 31 and communicated with the mud pit 33 through water storage pipes 35, the perforated percolating pipes 4 are arranged 800mm below the hardening field 1 and/or the LID rainwater storage facility 2, and the arrangement height of the perforated percolating pipes 4 is 100mm higher than the pipe bottom of the water storage pipes 35. So that the rainwater can infiltrate into the deep part. The diameter of the perforated seepage and drainage pipe 4 is smaller and is 100-200mm, a plurality of drainage holes for draining water to the soil layer 7 are arranged on the pipe wall, and the perforated seepage and drainage pipe 4 is arranged in parallel at equal intervals, so that the rainwater can slowly and uniformly seep. The perforation seepage and discharge pipe 4 is made of PVC-U material, and the manufacturing cost is low. Be equipped with rubble bed course 6 around the row's of calandria 4 is oozed in perforation, can make the wash port discharge the rainwater better, can also save partial rainwater, ooze the power that calandria 4 provided the support for the perforation simultaneously, the power that 4 tops of calandria were oozed in effective dispersion, make the perforation ooze the calandria 4 and be difficult to damage. One end of the perforated seepage and discharge pipe 4 is connected with the water storage pipe 35, and the other end is arranged on the ground of the hardening site 1 and/or the LID rainwater storage facility 2 and is blocked by the pipe plug 5.
According to a second embodiment of the present invention, there is provided a rainwater storage method for a seepage and stagnation type storage sponge parking lot, as shown in fig. 1 to 3, comprising the steps of:
rainwater regulation and storage are carried out in the seepage stagnation type regulation and storage sponge parking lot in the first embodiment;
rainwater falls into the hardening site 1 and is discharged into the LID rainwater storage facility 2 through the slope structure of the parking space 12;
the LID rainwater storage facility 2 is used for storing rainwater, when the rainwater exceeds the storage capacity of the LID rainwater storage facility 2, the rainwater is accumulated on the upper surface of the LID rainwater storage facility 2, and the rainwater is discharged into the mud pit 33 from the rainwater port 31 through the rainwater pipeline 32 after the water level rises to a certain height;
rainwater in the mud pit 33 rises and flows into the perforated seepage and drainage pipe 4 through the water storage pipe 35, is drained to the gravel cushion 6 through a drain hole of the perforated seepage and drainage pipe 4, and the gravel cushion 6 fully absorbs water and drains into the soil layer 7 to replenish underground water;
rainwater exceeding the storage capacity of the mud pit 33 rises to the height of the rainwater pipeline 32 and is drained into the water storage module 34 through the rainwater pipeline 32 on the right side of fig. 2 and 3, and when the water storage module 34 cannot bear rainwater, the rainwater flows out into the municipal rainwater pipeline network system through an overflow port on the upper part of the water storage module 34.
Therefore, the sponge parking lot can ensure that rainwater is infiltrated and retained, so that the rainwater can really and effectively infiltrate into soil, and the aims of natural accumulation, natural infiltration and natural purification of the sponge are fulfilled.
In addition, when silt siltation leads to going water unsmooth in perforation row of oozing tubes 4, can open pipe blockage 5, take out the rainwater in the retaining module 34, wash the pipeline, wash the cleaning and drawing out to the silt deposit groove in the mud trap 33 after that, the sponge parking area can continue normal use during.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. The utility model provides a ooze type regulation and storage sponge parking area which characterized in that includes:
a hardening site (1) comprising a road (11) and a plurality of parking spaces (12);
the LID rainwater storage facility (2) is arranged around the parking space (12) and is lower than the parking space (12);
the water storage device (3) comprises a rainwater inlet (31), a rainwater pipeline (32), a mud trap (33) and a water storage module (34), wherein the rainwater inlet (31) is arranged on the upper surface of the LID rainwater storage facility (2), the rainwater pipeline (32), the mud trap (33) and the water storage module (34) are all arranged in a soil layer (7) below the hardening site (1) and/or the LID rainwater storage facility (2), and the rainwater inlet (31) and the mud trap (33) and the water storage module (34) are all connected through the rainwater pipeline (32);
and the perforated seepage and drainage pipes (4) are arranged in the soil layer (7) below the rainwater pipeline (32) and are communicated with the mud pit (33), and a plurality of drainage holes for draining water to the soil layer are formed in the pipe wall of each perforated seepage and drainage pipe (4).
2. A stagnation type storage sponge garage according to claim 1, characterized in that the perforated percolating pipe (4) is placed at least 800mm below the hardening ground (1) and/or LID rain storage facility (2).
3. The permeable storage sponge parking lot according to claim 1, wherein the water storage device (3) further comprises a plurality of water storage pipes (35), the mud-depositing wells (33) are multiple, each water storage pipe (35) is connected with two mud-depositing wells (33) and connected with a plurality of perforated permeable pipes (4), and the height of the water storage pipe (35) is lower than that of the rainwater pipeline (32).
4. The seepage stagnation type storage sponge parking lot according to claim 3, wherein the plurality of perforated seepage pipes (4) are arranged in parallel at equal intervals.
5. The stagnation type storage sponge parking lot as claimed in claim 1, wherein the diameter of the perforated seepage pipe (4) is 100-200 mm.
6. The seepage stagnation type storage sponge parking lot as claimed in claim 1, wherein the hardening site (1) is made of a non-permeable paving material.
7. Seepage stagnation type regulation sponge parking lot of claim 1, characterized in that, each parking stall (12) is connected with LID rainwater regulation facility (2), each parking stall (12) is a slope structure, and the height of the part close to LID rainwater regulation facility (2) is lower than the height of the part far away from LID rainwater regulation facility (2).
8. Seepage stagnation storage sponge parking lot according to claim 1, characterized in that the height of the gully (31) is higher than the height of the LID rainwater storage facility (2) and lower than the height of the parking space (12).
9. The seepage stagnation type storage sponge parking lot as claimed in claim 1, wherein a gravel cushion layer (6) is arranged around the perforated seepage pipe (4).
10. A percolation type storage sponge parking lot according to claim 1, characterized by further comprising a plurality of pipe plugs (5), wherein one end of the perforated percolation pipe (4) is communicated with a mud caisson (33), and the other end is arranged on the ground of the hardening site (1) and/or the LID rainwater storage facility (2) and plugged by the pipe plugs (5).
11. The rainwater storage method for the seepage stagnation type storage regulation sponge parking lot is characterized by comprising the following steps of:
rainwater storage is carried out by adopting the seepage type storage regulation sponge parking lot of any one of claims 1-10;
draining rainwater from the hardening site (1) into an LID rainwater storage facility (2);
discharging rainwater exceeding the storage capacity of the LID rainwater storage facility (2) into a hardening site (1) and/or a mud trap (33) below the LID rainwater storage facility (2) through a rainwater port (31);
rainwater in the mud trap (33) is discharged into the soil layer (7) through the perforated seepage and drainage pipe (4), and rainwater exceeding the regulation and storage capacity of the mud trap (33) is discharged into the water storage module (34) and/or the municipal rainwater pipe network system.
CN202011028230.0A 2020-09-26 2020-09-26 Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method Pending CN112031114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011028230.0A CN112031114A (en) 2020-09-26 2020-09-26 Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011028230.0A CN112031114A (en) 2020-09-26 2020-09-26 Seepage stagnation type storage regulation sponge parking lot and rainwater storage regulation method

Publications (1)

Publication Number Publication Date
CN112031114A true CN112031114A (en) 2020-12-04

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113016490A (en) * 2021-03-17 2021-06-25 中建八局第二建设有限公司 Comprehensive functional rainwater garden under saline-alkali soil condition
CN114319537A (en) * 2022-02-22 2022-04-12 四川省建筑设计研究院有限公司 Can strengthen sponge system of rainwater purification infiltration function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113016490A (en) * 2021-03-17 2021-06-25 中建八局第二建设有限公司 Comprehensive functional rainwater garden under saline-alkali soil condition
CN114319537A (en) * 2022-02-22 2022-04-12 四川省建筑设计研究院有限公司 Can strengthen sponge system of rainwater purification infiltration function
CN114319537B (en) * 2022-02-22 2024-06-07 四川省建筑设计研究院有限公司 Sponge system capable of enhancing rainwater purification infiltration function

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