CN207862013U - A kind of mixed fillers biology for solving collapsibility of loess is detained facility - Google Patents

A kind of mixed fillers biology for solving collapsibility of loess is detained facility Download PDF

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Publication number
CN207862013U
CN207862013U CN201820104024.5U CN201820104024U CN207862013U CN 207862013 U CN207862013 U CN 207862013U CN 201820104024 U CN201820104024 U CN 201820104024U CN 207862013 U CN207862013 U CN 207862013U
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loess
mixed
biology
facility
collapsibility
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CN201820104024.5U
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熊家晴
陆峰宇
孙建民
付山
王晓昌
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Abstract

The mixed fillers biology that the utility model discloses a kind of for solving collapsibility of loess is detained facility, and facility includes water reserve, is coating below the water reserve, mixed filler layer, filter layer and gravel drainage blanket are followed successively by below coating;It is equipped with overflow well in the water reserve, PVC rainwater drainage pipes are equipped in overflow well;Running through in the gravel drainage blanket has the perforation PVC seepage pipes being connected in overflow well.The utility model is mixed using the optimization of the multimediums such as river sand, wood fragments bits, loess, have the characteristics that permeance property is good, facility should not block, facility filling settlement amount is small, realize that facilities design construction is simple is flexible, strong applicability to the high-efficient purification of the pollutants such as nitrogen phosphorus in runoff rainwater.

Description

A kind of mixed fillers biology for solving collapsibility of loess is detained facility
Technical field
The utility model is related to runoff rainwater treatment, collection and utilize technical field, more particularly to it is a kind of for solving Huang The mixed fillers biology of soil covering collapsible is detained facility.
Background technology
The fast development of urban economy and urbanization process persistently promote, and the waterproof underlying surface in city is continuously increased, Flood, runoff pollution, level of ground water reduction etc. control the relevant issues getting worse with management with rainwater.Urban waterlogging is anti- It controls and rainwater management is with using the hot issue that current city construction faces is had become, rely on large-scale basis facility and pipe network Traditional rainwater discharge thinking of construction can no longer meet the requirement of modern city storm water management, the sponge city of rising in recent years Construction theory advocates simulating natural condition, and rainfall runoff is controlled using some miniature distributing eco-treatment technologies in source.
As a technology in urban storm Best Management Practices (BMPs), biological delaying basin (also known as Rain Garden) is no Runoff and flood peak only can be effectively cut down, and the water quality of rainfall runoff can be effectively improved.Biological delay technology passes through evaporation Rainfall runoff and control contaminant transportation can efficiently be cut down by being oozed under, and having in terms of city rainfall runoff overall control can not replace The effect in generation.
Practical studies and experience accumulation in recent years are passed through about biological delay technology correlative study by foreign countries, have gradually formed More complete technical system, but also expose certain design defect and bring that effects of purification quality is poor, runoff control effect is owed The problems such as good, blocking, ground collapse.Studies have shown that filler infiltration coefficient is the key that influence biological gaseous-waste holdup system inereasing water area Factor.
The strobe utility for being detained facility by digital simulation and place experimental study biology is found, when particulate matter is biological After being detained facility retention, lamination is will appear inside filler, tiny grogs is gathered in filler upper layer, and larger particles can be detained In matrix lower layer, the permeability of filler is caused to reduce, and then influences the normal effect of system.Correlation also studies have shown that solid The obstruction of grain object not only influences the effects of purification quality of system, while can also shorten the service life of filler.
Biology be detained facility structure should adaptation to local conditions, can not copy slavishly.Biology is detained facility in the Northwest Using should carry out local Optimal improvements to biological delaying basin according to weather conditions, the soil characteristic in northwest region etc., promote Its northwest application, and solve pollution of area source and main hydrologic problems that urbanization is brought.Northwest collapsible loess has chance water easy Sedimentation, permeance property it is poor, easily block the shortcomings of, be not suitable for separately as biology delay facility inner stuffing, by loess The middle a certain proportion of material of addition, it is not only easy for construction easy, its pollutant removal can also be increased, enhance permeability Can, slow down facility clogging, extend facility service life, there is certain economic benefit.
Utility model content
In view of the deficiencies of the prior art and there is loess collapsibility, sedimentation to cause the region features such as blocking, provide one Kind is considered to be worth doing using loess, river sand, wood fragments as mixed fillers, infiltration coefficient is moderate, settling amount is small, is not easy to plug, construction management side Just, the runoff rainwater biology of good denitrogenation and dephosphorization effect is detained facility.Runoff rainwater enters biological delaying basin facility, passes through coating Filtration fraction large particulate matter reaches using mixed filler layer to the effect of avoiding the peak hour of the pollutant process of runoff rainwater and peak clipping.
To achieve the above object, the utility model can take following technical proposals:
A kind of mixed fillers biology for solving collapsibility of loess is detained facility, and facility includes water reserve, the water storage It is coating below area, mixed filler layer, filter layer and gravel drainage blanket is followed successively by below coating;It is set in the water reserve There is overflow well, PVC rainwater drainage pipes are equipped in overflow well;Running through in the gravel drainage blanket has the perforation being connected in overflow well PVC seepage pipes.
In above-mentioned technical proposal, the utility model also has the scheme further limited:
Further, the water reserve depth is 20cm.
Further, the coating is mixed by bark, weeds and fallen leaves;Coating depth is 5cm.
Further, the mixed filler layer is mixed by loess, river sand and wood fragments bits, is planted in the mixed filler layer Radix Ophiopogonis or iris plant;Mixed fillers layer depth is 50cm.
Further, river sand, depth 10cm are inserted inside the filter layer.
Further, the gravel draining layer depth is 20cm, inside filling 2~5cm gravels.
Further, the perforation PVC seepage pipe calibers be 10cm, perforate PVC seepage pipes on piercing aperture be 15mm, it is interleaved Hole.
Further, the overflow well is located at water reserve to gravel drainage blanket bottom, and top is beyond at the top of the coating 18 ~20cm, the PVC rainwater drainage pipes in overflow well are corresponding with the perforation PVC seepage pipes in gravel drainage blanket.
Further, PVC rainwater drainage pipes one end is located in the overflow well, municipal Storm Sewer Network outside another termination Or Treated sewage reusing facility, a diameter of 15cm of PVC rainwater drainage pipes.
Using above-mentioned technical proposal, the beneficial effects of the utility model are:The biology of the utility model is detained facility especially Suitable for northwest Collapsible Loess District, runoff and flood peak can not only be effectively cut down, improves the water quality of rainfall runoff and also has and ooze Permeability energy is good, facility should not block, the small feature of facility filling settlement amount, realizes to the efficient of the pollutants such as nitrogen phosphorus in runoff rainwater Purification, facilities design construction is simple is flexible, strong applicability.
Description of the drawings
Fig. 1 is that the biology of the utility model is detained the structural schematic diagram of facility;
Figure label:1, water reserve;2, coating;3, mixed filler layer;4, filter layer;5, gravel drainage blanket 5;6, it perforates PVC seepage pipes;7, overflow well;8, PVC rainwater drainage pipes.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with the accompanying drawings and implement Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this Utility model is not used to limit the utility model.
The utility model is a kind of mixed fillers biology delay facility for solving collapsibility of loess.
As shown in Figure 1, it includes water reserve 1, coating 2, mixed filler layer 3, filtering that the utility model biology, which is detained facility, Layer 4, gravel drainage blanket 5, perforation PVC seepage pipes 6, overflow well 7 and PVC rainwater drainage pipes 8.1 lower section of water reserve is coating 2, is covered 2 lower section of cap rock is followed successively by mixed filler layer 3, filter layer 4 and gravel drainage blanket 5;It is equipped with overflow well 7 in the water reserve 1, overflows Stream well 7 is located at water reserve 1 to 5 bottom of gravel drainage blanket, and PVC rainwater drainage pipes 8 are equipped in overflow well 7;It is passed through in gravel drainage blanket 5 The perforation PVC seepage pipes 6 being connected in overflow well 7 are installed with, in the PVC rainwater drainage pipes 8 in overflow well 7 and gravel drainage blanket 5 PVC seepage pipes 6 of perforating correspond to.Piercing aperture is interspersed in perforation PVC seepage pipes 6.8 one end of PVC rainwater drainage pipes is located at described overflow It flows in well 7, municipal Storm Sewer Network or Treated sewage reusing facility outside another termination.Coating 2 by bark, weeds and fallen leaves mixing and At;Mixed filler layer 3 is mixed by loess, river sand and wood fragments bits;It is waterlogging resistance to that Radix Ophiopogonis or iris etc. are planted in mixed filler layer 3 The plant of drought;River sand is inserted in 4 inside of filter layer, and gravel is inserted in 5 inside of gravel drainage blanket.
In one embodiment, 1 depth of water reserve is 20cm, and 2 depth of coating is 5cm, and 3 depth of mixed filler layer is 50cm, 4 depth of filter layer are 10cm, and 5 depth of gravel drainage blanket is 20cm, inside filling 2~5cm gravels.Perforation PVC seepage pipes 6 Caliber is 10cm, and piercing aperture is 15mm in perforation PVC seepage pipes 6.The top of overflow well 7 beyond 2 top 18 of the coating~ 8 a diameter of 15cm of 20cm, PVC rainwater drainage pipe.
The utility model processing rainfall runoff the course of work be:Runoff rainwater initially enters biology and is detained facility water storage Area, the pollutants such as bulky grain suspended matter, nitrogen phosphorus in runoff rainwater by coating 2 and mixed filler layer 3 filter suction-operated, The assimilation effect of the plants such as Radix Ophiopogonis, the iris planted in the effect of microorganism nitration denitrification and mixed filler layer 3 is able to Removal.Runoff rainwater after treatment in gravel drainage blanket 5, by perforate PVC seepage pipes collect enter overflow well 7, by with The PVC rainwater drainage pipes 8 that overflow well 7 is connected are collected and are discharged.
The embodiment of the utility model above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that for the ordinary skill of this field For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this The protection domain of utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (9)

1. a kind of mixed fillers biology for solving collapsibility of loess is detained facility, it is characterised in that:Facility includes water reserve (1), be coating (2) below the water reserve (1), be followed successively by below coating (2) mixed filler layer (3), filter layer (4) and Gravel drainage blanket (5);It is equipped with overflow well (7) in the water reserve (1), PVC rainwater drainage pipes (8) are equipped in overflow well (7); Running through in the gravel drainage blanket (5) has the perforation PVC seepage pipes (6) being connected in overflow well (7).
2. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute It is 20cm to state water reserve (1) depth.
3. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute Coating (2) is stated to be mixed by bark, weeds and fallen leaves;Coating (2) depth is 5cm.
4. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute It states mixed filler layer (3) to be mixed by loess, river sand and wood fragments bits, plantation Radix Ophiopogonis or iris in the mixed filler layer (3) Plant;Mixed filler layer (3) depth is 50cm.
5. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute It states and inserts river sand, depth 10cm inside filter layer (4).
6. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute It is 20cm, inside filling 2~5cm gravels to state gravel drainage blanket (5) depth.
7. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute Perforation PVC seepage pipes (6) caliber is stated as 10cm, piercing aperture is 15mm, staggeredly trepanning in perforation PVC seepage pipes (6).
8. the mixed fillers biology as described in claim 1 for solving collapsibility of loess is detained facility, which is characterized in that institute State overflow well (7) and be located at water reserve (1) to gravel drainage blanket (5) bottom, top beyond at the top of the coating (2) 18~ 20cm, the PVC rainwater drainage pipes (8) in overflow well (7) are corresponding with perforation PVC seepage pipe (6) in gravel drainage blanket (5).
9. the mixed fillers biology as claimed in claim 8 for solving collapsibility of loess is detained facility, which is characterized in that institute It states PVC rainwater drainage pipes (8) one end to be located in the overflow well (7), municipal Storm Sewer Network or Treated sewage reusing outside another termination Facility, PVC rainwater drainage pipes (8) a diameter of 15cm.
CN201820104024.5U 2018-01-22 2018-01-22 A kind of mixed fillers biology for solving collapsibility of loess is detained facility Active CN207862013U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109809633A (en) * 2019-02-01 2019-05-28 江苏大学 A kind of biological delaying basin improving rainwater infiltration ability
CN109809632A (en) * 2019-02-01 2019-05-28 江苏大学 A kind of biological delaying basin improving denitrogenation dephosphorizing ability

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109809633A (en) * 2019-02-01 2019-05-28 江苏大学 A kind of biological delaying basin improving rainwater infiltration ability
CN109809632A (en) * 2019-02-01 2019-05-28 江苏大学 A kind of biological delaying basin improving denitrogenation dephosphorizing ability

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