CN104145673B - Based on water drainage and the integrated form greenbelt system of water conservation and water drainage and water-retaining method - Google Patents
Based on water drainage and the integrated form greenbelt system of water conservation and water drainage and water-retaining method Download PDFInfo
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- CN104145673B CN104145673B CN201410385423.XA CN201410385423A CN104145673B CN 104145673 B CN104145673 B CN 104145673B CN 201410385423 A CN201410385423 A CN 201410385423A CN 104145673 B CN104145673 B CN 104145673B
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Abstract
A kind of based on water drainage and the integrated form greenbelt system of water conservation and water drainage and water-retaining method.System comprises kind of the plantation soil layer being implanted with plant, divide into filter row's water retention system and impermeable material layer, filter row water retention system is formed by stacking by the sand grains pervious bed in concave shape, sandy gravel pervious bed and gravel pervious bed, impermeable material layer presents convex arch shape, filter row water retention system in establish gravity hold row channel array and gravity hold row channel array vertical run through filter row water retention system.Method arranges the impermeable material layer that presents convex arch shape, osculum is provided with at the highest point of impermeable material layer, on impermeable material layer, the gravel pervious bed of convex arch shape, sandy gravel pervious bed, sand grains pervious bed and the plantation soil layer in concave shape are presented in laying successively, arrange gravity and hold row's channel array in gravel pervious bed, sandy gravel pervious bed and sand grains pervious bed.
Description
Technical field
The present invention relates to queueing problem and the Water-retaining Measure of urban road isolation greenbelt rainwater, particularly relate to a kind of integrated form greenbelt system based on water drainage and water conservation and water drainage and water-retaining method.
Background technology
The isolation greening of urban road central authorities is with separating track, increasing greenery patches, reducing the several functions such as road traffic pollution, beautifying city.Existing greenbelt exceeds road surface mostly, although can get rid of greenbelt precipitation in time, easily causes greenbelt water and soil loss, as continuing precipitation, infiltrates and easily bottom greenbelt, forms ponding afterwards, may affect roadbed safety; On the other hand, planting matrix directly adopts backfill soil, and water retention property is also poor, often needs periodically sprinkle maintenance.The present invention is directed to the actual conditions of urban road isolation greenbelt, construct in greenbelt region a kind of based on the integrated form greenbelt system of water drainage with water conservation technology.
Summary of the invention
The present invention proposes a kind ofly can to increase roadside greening area, strengthen rainwater resource interception and can the integrated form greenbelt system based on water drainage and water conservation of Quick drainage and water drainage and water-retaining method.
The present invention adopts following technical scheme:
A kind of based on the integrated form greenbelt system of water drainage with water conservation, comprise: plant the plantation soil layer being implanted with plant, filter row water retention system is provided with below plantation soil layer, impermeable material layer is provided with in the below of filter row water retention system, plantation soil layer is sunken arcs shape, filter row water retention system is by the sand grains pervious bed in concave shape, sandy gravel pervious bed in concave shape and in a concave shape and lower surface the presents convex arch shape gravel pervious bed of upper surface are formed by stacking, the upper surface of sand grains pervious bed is fitted with the lower surface of plantation soil layer, the lower surface of gravel pervious bed and the upper surface of impermeable material layer are fitted, impermeable material layer presents convex arch shape, filter row water retention system in be provided with gravity hold row channel array and gravity hold row channel array vertical run through filter row water retention system, the re-scheduling that gravity holds row's channel array insists on the highest point that impermeable material layer is stood in the one end of arranging passage, and, the other end that a described re-scheduling insists on row's passage extends past the sandy gravel pervious bed in concave shape and terminates in the lowest part of plantation soil layer, osculum is provided with at the highest point of impermeable material layer, osculum is coated with permeable filter screen, the row's of holding passage that gravity is held in row's channel array comprises the through hole constructed by seepy material, pile up in through hole and have coarse aggregate and using the hole between coarse aggregate as permeable path.
The water drainage of a kind of integrated form greenbelt system of the present invention and water-retaining method, irrigation canals and ditches are dug at greenbelt place to be built, the impermeable material layer presenting convex arch shape is placed at trench bottom, osculum is provided with at the highest point of impermeable material layer, osculum is coated with permeable filter screen, and osculum is accessed municipal drainage pipe network, impermeable material layer is laid gravel pervious bed that the in a concave shape and lower surface of upper surface presents convex arch shape successively, sandy gravel pervious bed in concave shape, sand grains pervious bed in concave shape and the plantation soil layer in sunken arcs shape, at gravel pervious bed, in sandy gravel pervious bed and sand grains pervious bed, gravity is set and holds row's channel array, and a re-scheduling of being held by gravity in row's channel array insists on the highest point that the one end of arranging passage is arranged on impermeable material layer, and the other end making a described re-scheduling insist on row's passage extends past the sandy gravel pervious bed in concave shape and terminates in the lowest part of plantation soil layer, gravity is held row's channel array and is adopted following methods construction: at gravel pervious bed, the hole of pressing array distribution is excavated in sandy gravel pervious bed and sand grains pervious bed, the inwall of institute's borehole is laid seepy material to form through hole, coarse aggregate is filled with and using the hole between coarse aggregate as permeable path in through hole.During water drainage, greenbelt internal water accumulation is held row's channel array via gravity under gravity and is imported municipal drainage pipe network fast, improves the impact of greenbelt ponding on roadbed; During water conservation, store moisture above impermeable material layer and keep the skin wet at the moisture film on coarse aggregate surface for poising under the effect of water potential gradient and capillary force, and upwards migrate along hole, enter greenbelt root zone, solve plant and need water.
The present invention makes full use of existing urban road isolated resource, by building based on the integrated form greenbelt system of water drainage with water conservation technology, utilize road rain water resource maintenance greenbelt, increase green coverage etc., realize the functions such as charge for remittance, water guide, draining, water conservation and purification of water quality.On the one hand, the present invention utilizes the sand grains pervious bed in concave shape in the plantation soil layer in sunken arcs shape, filter row water retention system and the sandy gravel pervious bed in concave shape to drain flooded fields, when there being water, come the water yield large time, water will be pooled to rapidly the recessed lowest part of plantation soil layer, sand grains pervious bed and sandy gravel pervious bed, insist on row's passage (re-scheduling being namely arranged on impermeable material layer highest point insists on row's passage) by the re-scheduling be located at herein to enter and be connected to a described re-scheduling and insist on the municipal drainage pipe network arranging passage, drain rapidly, on the other hand, the present invention can be in a special way, realize water conservation or the water supply of institute's Plants on plantation soil layer, the present invention utilizes the impermeable material layer of its convex arch shape to carry out retaining, flow through during water many drainings gravity hold row channel array water poise on coarse aggregate surface, and the moisture film of parcel coarse aggregate is formed on coarse aggregate surface, each coarse aggregate (i.e. coarse aggregate particle) makes the moisture film be wrapped on each coarse aggregate be interconnected because it is deposited in together and forms a whole film, this whole film is being connected with plantation soil layer again while being connected with institute's retaining on impermeable material layer, dry plantation soil layer constantly draws the water being derived from moisture film, and the effect of water conservancy water potential gradient on impermeable material layer and capillary force, constantly keep the skin wet for complete moisture film again.Therefore, the present invention remains again a part of water while being drained by unnecessary water, for the plant on plantation soil layer continues to provide moisture.
Compared with prior art, tool of the present invention has the following advantages:
1. greenbelt adopts up concave type arc-shaped structure, and its advantage is mainly manifested in: (1) is control greenbelt Regional Erosion effectively; (2) rainwater resource interception is strengthened; (2) flood peak clipping, accelerates road surface drainage speed; (3) evapotranspiration is reduced, increasing or the water holding capacity without season for irrigaton; (4) road improvement greening visual effect, increases roadside greening area.
2. in filter row water retention system, the filling-material structure that water permeability successively increases from top to bottom at the Main Function on vertical is: the change of (1) packing material size can leach the silt of discharging in current gradually, plays water purification; (2) greenbelt ponding can be got rid of, reduce greenbelt seepage flow ponding to the impact of roadbed; (3) store moisture above impermeable material layer to keep the skin wet at the moisture film on coarse aggregate surface for poising under the effect of water potential gradient and capillary force, and upwards migrate along hole, enter greenbelt root zone, effectively solve plant and need water problems, realize greenbelt water conservation.Filter row water retention system advantage in the horizontal shows: the road gully that (1) is built by dank material and gravity are held and arrange channel boundary and can drain the current partly descended in flume, add drain discharge; (2) packing layer is set to reduce gradually in the middle of greenbelt two side direction, and under gravity, current can import municipal drainage pipe network fast, alleviate road surface drainage pressure; (3) lay in filter row water retention system two bottom sides the circular arc impermeable material raised up, both the lower infiltration in greenbelt can effectively have been collected, utilize again arcuate structure to carry out controlling water level change, the moisture of impermeable stratum storage or saving during normal work provides moisture for greenbelt; (4) when water level exceeds osculum water level, excessive moisture enters urban drainage pipe network automatically.
3. gravity holds row's passage is array distribution, and its advantage is: (1), when greenbelt ponding, moisture is migrated downwards fast along coarse aggregate hole under gravity, enters drainage pipeline networks, improves the impact of greenbelt ponding on roadbed, (2) flow through during water many drainings gravity hold row channel array moisture poise on coarse aggregate surface, and form the moisture film of parcel coarse aggregate, each coarse aggregate (i.e. coarse aggregate particle) makes the moisture film be wrapped on each coarse aggregate be interconnected because it is deposited in together and forms a whole film, this whole film is being connected with plantation soil layer again while being connected with institute's retaining on impermeable material layer, dry plantation soil layer constantly draws the water being derived from moisture film, and the effect of water conservancy water potential gradient on impermeable material layer and capillary force, constantly keep the skin wet for complete moisture film again, thus provide moisture for greenbelt.
The present invention constructs the integrated form greenbelt system integrating charge for remittance, water guide, draining, water conservation and purification of water quality, optimize the design of urban road isolation greenbelt, realize its hydrologic effect, environmental effect and landscape effect, there is structure simple, do not increase the advantages such as floor space.
Accompanying drawing explanation
Fig. 1 is integrated form greenbelt System planes layout drawing.
Fig. 2 is Water Transport situation (A-A profile) in greenbelt under ponding condition.
Fig. 3 is Water Transport situation (A-A profile) in greenbelt under water conservation condition.
In figure: 1. plant; 2. filter row water retention system; 3. gravity holds row's channel array; 4. curb; 5. kind plant soil layer; 6. sand grains pervious bed; 7. sandy gravel pervious bed; 8. gravel pervious bed; 9. impermeable material layer; 10. osculum; 11. permeable filter screens; 12. through holes; 13. coarse aggregates.
Embodiment
Below in conjunction with accompanying drawing 1 ~ accompanying drawing 3, the present invention is further described.
Embodiment 1
A kind of based on the integrated form greenbelt system of water drainage with water conservation, comprise: kind is implanted with plantation soil layer 5 thickness of plant 1 at 100 ~ 200mm, filter row water retention system 2 is provided with below plantation soil layer 5, impermeable material layer 9 is provided with in the below of filter row water retention system 2, plantation soil layer 5 is in sunken arcs shape, filter row water retention system 2 is by the sand grains pervious bed 6 (being pressed the composition of proportions of 3:1 by the fine sand of particle diameter 0.075mm ~ 0.5mm and medium sand) in concave shape, sandy gravel pervious bed in concave shape 7 (by the composition of proportions by 1:1 of the coarse sand of particle diameter 0.5mm ~ 5mm and granule) and upper surface is in a concave shape and lower surface presents the gravel pervious bed 8 of convex arch shape (by the boulderet of particle diameter 5mm ~ 100mm, cobble and rubble are by the composition of proportions of 1:1:1) be formed by stacking, the upper surface of sand grains pervious bed 6 is fitted with the lower surface of plantation soil layer 5, the lower surface of gravel pervious bed 8 and the upper surface of impermeable material layer 9 are fitted, impermeable material layer 9 presents convex arch shape, in filter row water retention system 2, be provided with gravity hold row's channel array 3, and gravity is held, and row's channel array 3 is vertical runs through filter row water retention system 2, gravity one re-scheduling of holding in row's channel array 3 insists on the highest point that impermeable material layer 9 is stood in the one end of arranging passage, and, the other end that a described re-scheduling insists on row's passage extends past the lowest part of the sandy gravel pervious bed 7 in concave shape and terminates in the lowest part of planting soil layer 5, osculum 10 is provided with at the highest point of impermeable material layer 9, osculum 10 is coated with permeable filter screen 11, the row's of holding passage that gravity is held in row's channel array 3 comprises the through hole 12 constructed by seepy material, pile up in through hole 12 and have coarse aggregate 13 and using the hole between coarse aggregate as permeable path.
Female greenbelt system is with two end points of the basis of greenbelt both sides curb 4 for up concave type arc section plantation soil layer 5, and select the suitable recessed degree of depth according to greenbelt width, Ordinary Rd is 500mm.Greenbelt plants configuration can according to the requirement of the aspects such as greenbelt width and function, select Qiao Guancao, fill with the various ways such as grass combination or turf greening, build and there is the female greenbelt system collected greenbelt rainwater, prevent erosion, increase green coverage, improve the several functions such as visual effect.
Embodiment 2
A kind of water drainage of integrated form greenbelt system and water-retaining method, irrigation canals and ditches are dug at greenbelt place to be built, the impermeable material layer 9 presenting convex arch shape is placed at trench bottom, osculum 10 is provided with at the highest point of impermeable material layer 9, osculum 10 is coated with permeable filter screen 11, and osculum 10 is accessed municipal drainage pipe network, impermeable material layer 9 is laid gravel pervious bed 8 that the in a concave shape and lower surface of upper surface presents convex arch shape successively, sandy gravel pervious bed 7 in concave shape, sand grains pervious bed 6 in concave shape and the plantation soil layer 5 in sunken arcs shape, at gravel pervious bed 8, gravity is set in sandy gravel pervious bed 7 and sand grains pervious bed 6 and holds row's channel array 3, and a re-scheduling of being held by gravity in row's channel array 3 insists on the highest point that the one end of arranging passage is arranged on impermeable material layer 9, and the other end making a described re-scheduling insist on row's passage extends past the sandy gravel pervious bed 7 in concave shape and terminates in the lowest part of plantation soil layer 5, gravity is held row's channel array 3 and is adopted following methods to construct: at gravel pervious bed 8, the hole of pressing array distribution is excavated in sandy gravel pervious bed 7 and sand grains pervious bed 6, the inwall of institute's borehole is laid seepy material to form through hole 12, its spacing 2 ~ 3m, diameter 0.5m, coarse aggregate 13 is filled with and using the hole between coarse aggregate as permeable path in through hole 12.During water drainage, greenbelt internal water accumulation is held row's channel array 3 via gravity under gravity and is imported municipal drainage pipe network fast, improves the impact of greenbelt ponding on roadbed; During water conservation, store moisture above impermeable material layer 9 and keep the skin wet at the moisture film on coarse aggregate 13 surface for poising under the effect of water potential gradient and capillary force, and upwards migrate along hole, enter greenbelt root zone, effectively solve plant and need water problems.
Claims (5)
1. one kind based on water drainage and the integrated form greenbelt system of water conservation, comprise: plant the plantation soil layer (5) being implanted with plant (1), it is characterized in that, filter row's water retention system (2) is provided with in plantation soil layer (5) below, impermeable material layer (9) is provided with in the below of filter row's water retention system (2), described plantation soil layer (5) is in sunken arcs shape, described filter row's water retention system (2) is by the sand grains pervious bed (6) in concave shape, sandy gravel pervious bed (7) in concave shape and in a concave shape and lower surface the presents convex arch shape gravel pervious bed (8) of upper surface are formed by stacking, the upper surface of sand grains pervious bed (6) is fitted with the lower surface of plantation soil layer (5), the lower surface of gravel pervious bed (8) and the upper surface of impermeable material layer (9) are fitted, described impermeable material layer (9) presents convex arch shape, in filter row water retention system (2), be provided with gravity hold row's channel array (3) and gravity holds that row's channel array (3) is vertical runs through filter row's water retention system (2), described gravity one re-scheduling of holding in row's channel array (3) insists on the highest point that impermeable material layer (9) are stood in the one end of arranging passage, and, the other end that a described re-scheduling insists on row's passage extends past the sandy gravel pervious bed (7) in concave shape and terminates in the lowest part of plantation soil layer (5), osculum (10) is provided with at the highest point of impermeable material layer (9), osculum (10) is coated with permeable filter screen (11), the row's of holding passage that described gravity is held in row's channel array (3) comprises the through hole (12) constructed by seepy material, pile up in through hole (12) and have coarse aggregate (13) and using the hole between coarse aggregate as permeable path.
2. according to claim 1 based on the integrated form greenbelt system of water drainage with water conservation, it is characterized in that, sand grains pervious bed (6) is pressed the composition of proportions of 3:1 by the fine sand of particle diameter 0.075 ~ 0.25mm and the medium sand of 0.25 ~ 0.5mm.
3. according to claim 1 based on the integrated form greenbelt system of water drainage with water conservation, it is characterized in that, sandy gravel pervious bed (7) is pressed the composition of proportions of 1:1 by the coarse sand of particle diameter 0.5 ~ 2mm and the granule of 2 ~ 5mm.
4. according to claim 1 based on the integrated form greenbelt system of water drainage with water conservation, it is characterized in that, gravel pervious bed (8) is by the composition of proportions according to 1:1:1 of particle diameter 5 ~ 20mm boulderet, the cobble of 20 ~ 60mm and the metaling of 60 ~ 100mm.
5. the water drainage of an integrated form greenbelt system and water-retaining method, it is characterized in that, irrigation canals and ditches are dug at greenbelt place to be built, the impermeable material layer (9) presenting convex arch shape is placed at trench bottom, osculum (10) is provided with at the highest point of impermeable material layer (9), osculum (10) is coated with permeable filter screen (11), and by osculum (10) access municipal drainage pipe network; impermeable material layer (9) is laid gravel pervious bed (8) that the in a concave shape and lower surface of upper surface presents convex arch shape successively, sandy gravel pervious bed (7) in concave shape, sand grains pervious bed (6) in concave shape and the plantation soil layer (5) in sunken arcs shape, in gravel pervious bed (8), gravity is set in sandy gravel pervious bed (7) and sand grains pervious bed (6) and holds row's channel array (3), and a re-scheduling of being held by gravity in row's channel array (3) insists on the highest point that the one end of arranging passage is arranged on impermeable material layer (9), and the other end making a described re-scheduling insist on row's passage extends past the sandy gravel pervious bed (7) in concave shape and terminates in the lowest part of plantation soil layer (5), described gravity is held row's channel array (3) and is adopted following methods construction: in gravel pervious bed (8), the hole of pressing array distribution is excavated in sandy gravel pervious bed (7) and sand grains pervious bed (6), the inwall of institute's borehole is laid seepy material to form through hole (12), coarse aggregate (13) is filled with and using the hole between coarse aggregate as permeable path in through hole (12), during water drainage, greenbelt internal water accumulation is held row's channel array (3) via gravity under gravity and is imported municipal drainage pipe network fast, improves the impact of greenbelt ponding on roadbed, during water conservation, keep the skin wet at the moisture film on coarse aggregate (13) surface for poising under storing the effect at water potential gradient and capillary force of moisture in impermeable material layer (9) top, and upwards migrate along hole, enter greenbelt root zone, solve plant and need water.
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| CN105104062A (en) * | 2015-08-19 | 2015-12-02 | 陈怀荗 | Construction method of multi-functional city sponge green space |
| CN105409568B (en) * | 2015-12-21 | 2019-03-29 | 河海大学 | The continuous stagnant storage of formula landscape belt in hills filters exhaust system |
| CN107354988B (en) * | 2017-05-25 | 2019-09-03 | 西安建筑科技大学 | The recessed greenery patches construction of rainwater infiltration is augmented under landscape background |
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| DE19946947C2 (en) * | 1999-07-23 | 2003-02-27 | Berthold Adler | layer structure |
| CN2911060Y (en) * | 2006-06-16 | 2007-06-13 | 华南理工大学 | Light weight plantable roof |
| KR101101281B1 (en) * | 2008-12-01 | 2012-01-04 | 한성아 | Mat for planting tree on sloop |
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