CN107556091A - A kind of Green Roof of recycling black-odor riverway dredging silt - Google Patents

A kind of Green Roof of recycling black-odor riverway dredging silt Download PDF

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Publication number
CN107556091A
CN107556091A CN201710582034.XA CN201710582034A CN107556091A CN 107556091 A CN107556091 A CN 107556091A CN 201710582034 A CN201710582034 A CN 201710582034A CN 107556091 A CN107556091 A CN 107556091A
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CN
China
Prior art keywords
green roof
hypothallus
roof
drainage blanket
riverway
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Pending
Application number
CN201710582034.XA
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Chinese (zh)
Inventor
张伟
钟兴
车伍
李俊奇
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Beijing University of Civil Engineering and Architecture
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Beijing University of Civil Engineering and Architecture
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Priority to CN201710582034.XA priority Critical patent/CN107556091A/en
Publication of CN107556091A publication Critical patent/CN107556091A/en
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    • 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
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/32—Roof garden systems

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  • Cultivation Of Plants (AREA)

Abstract

The present invention proposes a kind of Green Roof of recycling black-odor riverway dredging silt, the matrix of the Green Roof includes rural area soil, riverway sludge and light filler, the riverway sludge is the mud that black-odor riverway is dredged out, and the bulk density of the light filler is 0.1~0.5g/cm3.The present invention also proposes the preparation method of the Green Roof.Green Roof proposed by the present invention; the hypothallus of Green Roof is used as by the use of mud caused by the training of channel; nutriment therein can be utilized to provide the growth demand of vegetation; and relatively reasonable waste treatment mode; the construction cost of Green Roof can be reduced simultaneously, promote urban waste recycle and the protection of urban environment.In addition, addition light filler vermiculite, can reduce mixed-matrix proportion, Green Roof is reduced to load caused by building roof.

Description

A kind of Green Roof of recycling black-odor riverway dredging silt
Technical field
The invention belongs to building material field, and in particular to a kind of roof structure using black-odor riverway dredging silt.
Background technology
An important measures of the dredging silt as control black and odorous water endogenous pollution, it is endogenous can quickly to reduce black and odorous water Pollutional load, but there is also sludge treatment, the disposal problems such as difficulty is larger simultaneously.With black and odorous water control by Step is carried out, and channel cleanout dredging produces a large amount of riverway sludges, and wherein most is stacked as municipal solid wastes, not only Urban land is taken, and great pressure is produced to urban environment, therefore the disposal to black-odor riverway dredging silt turns into one Individual urgent problem to be solved.Meanwhile domestic Fast Urbanization in recent years triggers city surface source pollution and ratio of green space not high Problem, urban ecological environment is caused to deteriorate.
A kind of runoff source control measure of the Green Roof as sponge urban construction, can be used for city rainfall runoff control System, while city's green areas can be increased.Green Roof mainly includes waterproof layer, drainage blanket, filter layer, hypothallus and vegetation Layer.The matrix of Green Roof is related to the growth of vegetation, the material of hypothallus generally require from the soil containing humus with Ensure the growth of vegetation.Such as the fillers such as peat soil are added in hypothallus, and these fillers need special making or purchase, Add the cost of Green Roof facility structure.
Riverway sludge caused by black and odorous water regulation includes a variety of nutriments such as nitrogen, phosphorus, organic matter, thus land use It is a kind of common disposal options of riverway sludge.Reasonable employment dredging silt can strengthen soil with improved soil property in soil Earth fertility etc..Therefore, mud caused by the training of channel is used for the matrix for improveing Green Roof, disclosure satisfy that Green Roof vegetation Nutritional need, while can reduce municipal solid wastes disposal and Green Roof structure cost and municipal solid waste Thing is to pressure caused by urban environment.
The content of the invention
For weak point existing for this area, the purpose of the present invention is to propose to a kind of dredging of recycling black-odor riverway The Green Roof of mud.
Second object of the present invention is to propose the preparation method of the Green Roof.
The technical scheme for realizing above-mentioned purpose of the present invention is：
A kind of Green Roof of recycling black-odor riverway dredging silt, the matrix of the Green Roof include rural area Soil, riverway sludge and light filler, the riverway sludge are the mud that black-odor riverway is dredged out, and the accumulation of the light filler is close Spend for 0.1~0.5g/cm3。
Preferably, the matrix includes 30~40 parts of the rural area soil of parts by volume, 30~40 parts of riverway sludge and light filler 20~40 parts, one or more of the light filler in vermiculite, perlite, light soil, volcanic rock.
Wherein, the rural area soil particle diameter is less than 2mm, and the moisture of the riverway sludge is less than 8%, the light filler Particle diameter be 3~5mm.
Further, the Green Roof is followed successively by upwards from top of building：Waterproof layer, drainage blanket, filter layer, matrix Layer, vegetable layer, the waterproof layer are paved into for waterproof roll, and the drainage blanket is made up of drain bar, water storage board or water draining and accumulating plate, The filter layer is geotextiles.
Wherein, the thickness of the hypothallus is 5~20cm.
A kind of construction method of Green Roof, including step：
The mud that black-odor riverway is dredged out, by drying in the shade, it is less than 8% to moisture, crushes；Field is taken nearby from building Garden mould, cross 2mm sieves；Mud and light filler mixing after rural area soil, crushing, form hypothallus.
The construction method of described Green Roof, in addition to step：
Lay waterproof layer, drainage blanket, filter layer, hypothallus successively on roof, the plant planted on hypothallus is vegetation Layer；
Waterproof layer material is PVC waterproof rolls, is layed on building roof；Drainage blanket is concave-convex type plastic plate, thereon Filter layer is made up of non-woven geotextile, and hypothallus is laid on non-woven geotextile, thickness 10cm.
For the concave-convex type plastic plate that drainage blanket uses for commercially available prod, its surface is convex-concave ripple or convex-concave round platform or ripple There are drain bar, water draining and accumulating plate, drainage plate, row's (storage) water plate etc. with multiple patterns, trade names such as round platform combinations.The present invention is excellent Choosing uses convex-concave circular platform type plastic plate.
Wherein, PVC waterproof rolls use construction with cold alhesion method, and whole construction with cold alhesion method is carried out in not less than 5 DEG C environment.
Preferably, drainage blanket selects concavo-convex plastic row water storage board, and concavo-convex plastic row water storage board is constructed using splicing processes, overlap joint Width is in more than 100mm.
Wherein, non-woven geotextile sky is laid on drainage blanket, and overlap joint is using being adhesively fixed, and lap width is in more than 150mm； Edge turns over 10cm along plantation barricade, the consistency of thickness with hypothallus.
Alternatively, perforated drain pipe, the rainwater down pipe of the perforated drain pipe and building roof are provided with the drainage blanket Connection.
The beneficial effects of the present invention are：
Green Roof proposed by the present invention, can as the hypothallus of Green Roof by the use of mud caused by the training of channel The growth demand of vegetation, and relatively reasonable waste treatment mode are provided using nutriment therein, while can be reduced The construction cost of Green Roof, promote urban waste recycle and the protection of urban environment.In addition, addition lightweight is filled out Expect vermiculite, mixed-matrix proportion can be reduced, reduce Green Roof to load caused by building roof.
The present invention have host material component species is few, low-maintenance requirement, cost are cheap, it is environmentally friendly, be applicable area extensively excellent Point.
Brief description of the drawings
Fig. 1 is the plan structure sketch of Green Roof.
Fig. 2 is the sectional view of Green Roof.
In figure, 1 is perforated drain pipe, and 2 be waterproof layer, and 3 be drainage blanket, and 4 be filter layer, and 5 be hypothallus, and 6 be vegetable layer, 7 be overfall, and 8 be rainwater down pipe.
Embodiment
Now illustrate the present invention with following examples, but be not limited to the scope of the present invention.The hand used in embodiment Section, unless otherwise instructed, using the conventional means in this area.
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc., unless otherwise specified, are commercially obtained in following embodiments.
Embodiment 1：
A kind of new Green Roof matrix provided by the invention, it is mainly precious including rural area soil, riverway sludge and light filler Zhu Yan, according to rural area soil, riverway sludge and perlite volume ratio 40:30:30 provide the performance parameter of matrix.Wherein rural area soil is Green Roof structure place just nearby obtains, and (2mm standard screens is crossed) after removing the debris such as stone, for making the base of Green Roof Matter.
Riverway sludge is the riverway sludge dredged out in black and odorous water training works, does to moisture content and is less than through shady xeromenia shade After 8%, it is used for Green Roof matrix through crushing.
Table 1：The matrix parameter of embodiment 1
The present embodiment mixed-matrix actual measurement bulk density 0.90g/cm3, cost is about 120 yuan/m2
Although from the point of view of bulk density measured result, perlite is lighter, the hole inside this porous material of perlite Gap does not connect, not water conservation, slightly worse to vegetation growth effect.
Embodiment 2：
A kind of new Green Roof matrix provided by the invention, mainly including rural area soil, riverway sludge and vermiculite, three kinds are filled out The volume ratio of material is 40：40：20.Rural area soil, the acquisition pattern of riverway sludge are the same as embodiment 1.Become silted up below according to rural area soil, river course Mud and vermiculite volume ratio 40:40:20 provide performance parameter.
Vermiculite particle diameter is 3-5mm.
Three of the above filler component, by above volume ratio through uniformly mixing, Green Roof matrix needed for formation.Three kinds of groups Divide the physico-chemical property of filler component and mixed-matrix as described below：
Table 2：The matrix parameter of embodiment 2
The bulk density 1.03g/cm of the present embodiment matrix actual measurement3, cost is about 110 yuan/m2
Embodiment 3：
A kind of new Green Roof matrix provided by the invention, mainly including rural area soil, riverway sludge and vermiculite, three kinds are filled out The volume ratio of material is 40：30：30.Rural area soil, the acquisition pattern of riverway sludge are the same as embodiment 1.Become silted up below according to rural area soil, river course Mud and vermiculite volume ratio 40:30:30 provide performance parameter.
Vermiculite particle diameter is 3-5mm.
Three of the above filler component, by above volume ratio through uniformly mixing, Green Roof matrix needed for formation.Three kinds of groups Divide the physico-chemical property of filler component and mixed-matrix as described below：
Table 2：The matrix parameter of embodiment 2
The bulk density 0.93g/cm of the present embodiment actual measurement3, cost is about 140 yuan/m2。
,, can although cost can reduce when improving riverway sludge ratio in filler by experimental monitoring as shown by data Facility operation can be caused to go out water pollutant leaching loss problem initial stage serious.By to different proportion filler experimental study, 40：30： 30 ratio effects are relatively excellent.
Embodiment 4：
Referring to Fig. 1 and Fig. 2, waterproof layer 2, drainage blanket 3, filter layer 4, hypothallus 5 are laid successively on roof, on hypothallus The plant of plantation is vegetable layer 6.Waterproof material is PVC waterproof rolls, is layed on building roof.Drainage blanket is concavo-convex plastic Drain bar (convex-concave circular platform type plastic plate), filter layer thereon are formed for non-woven geotextile.Hypothallus is that mixed-matrix is laid on nothing Spin in geotextiles, thickness 10cm.
Waterproof layer 2 uses PVC waterproof rolls in this example, and PVC waterproof rolls meet corresponding rule using cold glutinous method construction, construction Model requirement.Whole construction with cold alhesion method is carried out in not less than 5 DEG C environment.
Drainage blanket 3 selects concavo-convex plastic row water storage board in this example, and concavo-convex plastic row water storage board is constructed using splicing processes, overlap joint Width ensures more than 100mm.
Filter layer 4 is from non-woven geotextile (100g/m in this example2), non-woven geotextile sky is laid on drainage blanket, laying Smooth, no wrinkle；For overlap joint using being adhesively fixed, lap width ensures more than 150mm；Edge turns over 10cm along plantation barricade, with The consistency of thickness of hypothallus.
This example mesostroma layer 5 presses 40 using rural area soil, riverway sludge, vermiculite:30:The 30 agitated machine of ratio uniformly mixes After obtain required mixed-matrix.Preparation process is the same as embodiment 3.
Perforated drain pipe 1 is provided with drainage blanket, building roof rainwater down pipe 8 is connected with the drainpipe 1 of Green Roof.Perforation Drainpipe 1 connects with the overfall 7 in Green Roof.
Planting plants select Crassulaceae herbaceous plant sedum lineare in this example, and vegetation planting density is 240 plants/m2, planted Journey keeps root system complete, does not damage cauline leaf and root system.The vegetable layer plant planting same day irrigates first pass water, and second is irrigated in three days All over water, irrigated in good time according to climatic condition, complete facility planting initial curing；When northern area is applied, on winter soil Before jelly, freeze-up water irrigation is carried out, so that sedum lineare smoothly passes the winter in open country.After spring next year soil thaws, pour and return spring water simultaneously Weed out the rank grass in time, turn into the vegetable layer of perennial beautification landscape.
Embodiment above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is entered Row limits, on the premise of design spirit of the present invention is not departed from, technical side of this area ordinary skill technical staff to the present invention The all variations and modifications that case is made, it all should fall into the protection domain of claims of the present invention determination.

Claims (10)

  1. A kind of 1. Green Roof of recycling black-odor riverway dredging silt, it is characterised in that the matrix of the Green Roof Including rural area soil, riverway sludge and light filler, the riverway sludge is the mud dredged out of black-odor riverway, the light filler Bulk density be 0.1~0.5g/cm3。
  2. 2. Green Roof according to claim 1, it is characterised in that the matrix includes the rural area soil 30~40 of parts by volume Part, 20~40 parts of 30~40 parts of riverway sludge and light filler, the light filler are selected from vermiculite, perlite, light soil, volcano One or more in rock.
  3. 3. Green Roof according to claim 1, it is characterised in that the rural area soil particle diameter is less than 2mm, and the river course becomes silted up The moisture of mud is less than 8%, and the particle diameter of the light filler is 3~5mm.
  4. 4. according to the Green Roof described in any one of claims 1 to 3, it is characterised in that the Green Roof is from building top Portion is followed successively by upwards：Waterproof layer, drainage blanket, filter layer, hypothallus, vegetable layer, the waterproof layer is paved into for waterproof roll, described Drainage blanket is made up of drain bar, water storage board or water draining and accumulating plate, and the filter layer is geotextiles.
  5. 5. Green Roof according to claim 4, it is characterised in that the thickness of the hypothallus is 5~20cm.
  6. 6. a kind of construction method of Green Roof, it is characterised in that including step：
    The mud that black-odor riverway is dredged out, by drying in the shade, it is less than 8% to moisture, crushes；Rural area is taken nearby from building Soil, cross 2mm sieves；Mud and light filler mixing after rural area soil, crushing, form hypothallus.
  7. 7. the construction method of Green Roof according to claim 6, it is characterised in that including step：
    Lay waterproof layer, drainage blanket, filter layer, hypothallus successively on roof, the plant planted on hypothallus is vegetable layer；
    Waterproof layer material is PVC waterproof rolls, is layed on building roof；Drainage blanket is concave-convex type plastic plate, filtering thereon Layer is made up of non-woven geotextile, and hypothallus is laid on non-woven geotextile, thickness 10cm；
    Wherein, PVC waterproof rolls use construction with cold alhesion method, and whole construction with cold alhesion method is carried out in not less than 5 DEG C environment.
  8. 8. the construction method of Green Roof according to claim 6, it is characterised in that
    Drainage blanket selects concavo-convex plastic row water storage board, and concavo-convex plastic row water storage board is constructed using splicing processes, and lap width is in 100mm More than.
  9. 9. the construction method of the Green Roof according to any one of claim 6~8, it is characterised in that non-woven geotextile is empty It is laid on drainage blanket, overlap joint is using being adhesively fixed, and lap width is in more than 150mm；Edge turns over 10cm along plantation barricade, with The consistency of thickness of hypothallus.
  10. 10. the construction method of the Green Roof according to any one of claim 6~8, it is characterised in that in the drainage blanket It is provided with perforated drain pipe, the rainwater down pipe connection of the perforated drain pipe and building roof.
CN201710582034.XA 2017-07-17 2017-07-17 A kind of Green Roof of recycling black-odor riverway dredging silt Pending CN107556091A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113597936A (en) * 2021-08-09 2021-11-05 国投信开水环境投资有限公司 Sunken underground space and resource comprehensive utilization system for reclaimed water plant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101182165A (en) * 2007-11-03 2008-05-21 叶建军 Pumping lightweight roof greening base material
CN105781031A (en) * 2016-03-18 2016-07-20 南开大学 Green roof structure with rainwater retaining ability
CN106013624A (en) * 2016-06-14 2016-10-12 苏州大学 Technical method of green sponge roof modified on basis of grass planting plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101182165A (en) * 2007-11-03 2008-05-21 叶建军 Pumping lightweight roof greening base material
CN105781031A (en) * 2016-03-18 2016-07-20 南开大学 Green roof structure with rainwater retaining ability
CN106013624A (en) * 2016-06-14 2016-10-12 苏州大学 Technical method of green sponge roof modified on basis of grass planting plate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113597936A (en) * 2021-08-09 2021-11-05 国投信开水环境投资有限公司 Sunken underground space and resource comprehensive utilization system for reclaimed water plant

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Application publication date: 20180109