CN104145673A - Integrated green belt system based on flood drainage and water conservation and flood drainage and water conservation method - Google Patents
Integrated green belt system based on flood drainage and water conservation and flood drainage and water conservation method Download PDFInfo
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- CN104145673A CN104145673A CN201410385423.XA CN201410385423A CN104145673A CN 104145673 A CN104145673 A CN 104145673A CN 201410385423 A CN201410385423 A CN 201410385423A CN 104145673 A CN104145673 A CN 104145673A
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Abstract
Provided are an integrated green belt system based on flood drainage and water conservation and a flood drainage and water conservation method. The system comprises a planting soil layer with plants planted, a filter and drainage water conservation system and a waterproof material layer are arranged on the lower portion, the filter and drainage water conservation system is formed by stacking an inward concave sand permeable layer, a sand-gravel material permeable layer and a gravel permeable layer, the waterproof material layer is in an upward protruding arc shape, and gravity water holding and flood draining channel arrays are arranged in the filter and drainage water conservation system and vertically penetrate through the filter and drainage water conservation system. According to the method, the waterproof material layer in the upward protruding arc shape is arranged, water drainage holes are formed in the highest position of the waterproof material layer, the gravel permeable layer in an upward protruding arc shape, the sand-gravel material permeable layer in a downward concave shape, the sand permeable layer and the planting soil layer are laid on the waterproof material layer in sequence, and the gravity holding and draining channel arrays are arranged in the gravel permeable layer, the sand-gravel material permeable layer and the sand permeable layer.
Description
Technical field
The queueing problem and the Water-retaining Measure that the present invention relates to urban road isolation greenbelt rainwater, relate in particular to a kind of integrated form greenbelt system and water drainage and water-retaining method based on water drainage and water conservation.
Background technology
The isolation greening of urban road central authorities is with separating track, increase greenery patches, reducing the several functions such as road traffic pollution, beautifying city.Existing greenbelt exceeds road surface mostly, although can get rid of in time greenbelt precipitation, easily causes greenbelt water and soil loss, as continuing precipitation, infiltrates the rear ponding that easily forms in greenbelt bottom, 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, built a kind of integrated form greenbelt system based on water drainage and water conservation technology in greenbelt region.
Summary of the invention
The present invention proposes a kind of integrated form greenbelt system and water drainage and water-retaining method with water conservation based on water drainage that can increase roadside greening area, strengthen rainwater resource interception energy Quick drainage.
The present invention adopts following technical scheme:
A kind of integrated form greenbelt system based on water drainage and water conservation, comprise: plant the plantation soil layer that is implanted with plant, below plantation soil layer, be provided with filter row water retention system, below filter row water retention system, be provided with impermeable material layer, plantation soil layer is sunken arcs shape, filter row water retention system is by the sand grains pervious bed that is concave shape, the sandy gravel pervious bed and the gravel pervious bed that are concave shape are formed by stacking, the upper surface of sand grains pervious bed is fitted with the lower surface of plantation soil layer, the upper surface laminating of the lower surface of gravel pervious bed and impermeable material layer, impermeable material layer is presented dome arc shape, in filter row's water retention system, be provided with that gravity is held row's channel array and gravity is held the vertical filter row water retention system that runs through of row's channel array, the re-scheduling that gravity is held row's channel array is insisted on one end of row's passage and is stood on the highest point of impermeable material layer, and, the other end that a described re-scheduling is insisted on row's passage extends past the lowest part that is the sandy gravel pervious bed of concave shape and terminates in plantation soil layer, highest point at impermeable material layer is provided with osculum, on osculum, be coated with permeable filter screen, the row's of holding passage that gravity is held in row's channel array comprises the through hole of being constructed by seepy material, in through hole, pile up and have coarse aggregate and using the hole between coarse aggregate as permeable path.
Water drainage and the water-retaining method of a kind of integrated form greenbelt system of the present invention, dig irrigation canals and ditches at greenbelt place to be built, place in irrigation canals and ditches bottom the impermeable material layer of presenting dome arc shape, highest point at impermeable material layer is provided with osculum, on osculum, be coated with permeable filter screen, and osculum is accessed to municipal drainage pipe network, on impermeable material layer, lay successively the gravel pervious bed of presenting dome arc shape, be the sandy gravel pervious bed of concave shape, be the sand grains pervious bed of concave shape and be the plantation soil layer of 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 gravity is held to the re-scheduling of row in channel array and is insisted on one end of row's passage and be arranged on the highest point of impermeable material layer, and the other end that makes a described re-scheduling insist on row's passage extends past the lowest part that is the sandy gravel pervious bed of concave shape and terminates in plantation soil layer, gravity is held row's channel array and is adopted following methods construction: at gravel pervious bed, in sandy gravel pervious bed and sand grains pervious bed, excavation is by the hole of array distribution, on the inwall of institute's borehole, lay seepy material to form through hole, in through hole, be filled with coarse aggregate and using the hole between coarse aggregate as permeable path.When water drainage, greenbelt internal water accumulation is held row's channel array via gravity and is imported fast municipal drainage pipe network under Action of Gravity Field, improves the impact of greenbelt ponding on roadbed; When water conservation, store at the 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 along hole Upward Migration, enter greenbelt root zone, solve plant and need water.
The present invention makes full use of existing urban road isolated resource, by building the integrated form greenbelt system with water conservation technology based on water drainage, 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 sandy gravel pervious bed that utilization of the present invention is the sand grains pervious bed that is concave shape in plantation soil layer, filter row's water retention system of sunken arcs shape and is concave shape drains flooded fields, when there being water, carry out the water yield when large, 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 that is arranged on impermeable material layer highest point is insisted on row's passage) and enter and the municipal drainage pipe network that is connected in a described re-scheduling and insists on row's passage by being located at a re-scheduling herein, drain rapidly, on the other hand, the present invention can be with special shape, 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 dome arc shape to carry out retaining, the water that the gravity of flowing through when many drainings of water is held row's channel array poises on coarse aggregate surface, and form on coarse aggregate surface the moisture film that wraps up coarse aggregate, each coarse aggregate (being coarse aggregate particle) interconnects and forms a whole film because it is deposited in the moisture film that makes to be together wrapped on each coarse aggregate, this whole film with institute's retaining on impermeable material layer in being connected again with plantation soil layer be connected, dry plantation soil layer is constantly drawn the water that is derived from moisture film, and the effect of water potential gradient and capillary force for water conservancy on impermeable material layer, constantly keep the skin wet for complete moisture film again.Therefore, the present invention has retained again a part of water when unnecessary water is drained, 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) effectively prevents and treats greenbelt Regional Erosion; (2) strengthen rainwater resource interception; (2) flood peak clipping, accelerates road surface drainage speed; (3) reduce evapotranspiration, increasing or the moisture hold facility without season for irrigaton; (4) road improvement greening visual effect, increases roadside greening area.
2. in filter row water retention system, the Main Function of the filling-material structure that water permeability successively increases from top to bottom on vertical is: the variation of (1) packing material size can leach the silt of discharging in current gradually, plays water purification; (2) can get rid of greenbelt ponding, reduce the impact of greenbelt seepage flow ponding on roadbed; (3) store at the 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 along hole Upward Migration, 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 row's channel boundary can drain the current in the lower flume of part, has increased drain discharge; (2) packing layer is set to reduce gradually in the middle of greenbelt two side direction, and under Action of Gravity Field, 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 raising up, both can effectively collect the lower infiltration in greenbelt, utilize again arcuate structure to control SEA LEVEL VARIATION, while normally work, the moisture of impermeable stratum storage or saving provides moisture for greenbelt; (4), in the time that water level exceeds osculum water level, excessive moisture enters urban drainage pipe network automatically.
3. gravity is held row's passage and is array and distributes, and its advantage is: (1), in the time of greenbelt ponding, moisture along the fast downwards migration of coarse aggregate hole, enters drainage pipeline networks under Action of Gravity Field, improves the impact of greenbelt ponding on roadbed, (2) moisture that gravity holds row's channel array of flowing through when many drainings of water poises on coarse aggregate surface, and the moisture film of formation parcel coarse aggregate, each coarse aggregate (being coarse aggregate particle) interconnects and forms a whole film because it is deposited in the moisture film that makes to be together wrapped on each coarse aggregate, this whole film with institute's retaining on impermeable material layer in being connected again with plantation soil layer be connected, dry plantation soil layer is constantly drawn the water that is derived from moisture film, and the effect of water potential gradient and capillary force for water conservancy on impermeable material layer, constantly keep the skin wet for complete moisture film again, thereby for greenbelt provides moisture.
The present invention has built the integrated form greenbelt system that integrates 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, have simple in structurely, do not increase the advantages such as floor space.
Brief description of the drawings
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 is held 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 integrated form greenbelt system based on water drainage and water conservation, comprise: plant plantation soil layer 5 thickness that are implanted with plant 1 at 100～200mm, below plantation soil layer 5, be provided with filter row water retention system 2, below filter row water retention system 2, be provided with impermeable material layer 9, plantation soil layer 5 is sunken arcs shape, filter row's water retention system 2 is by the sand grains pervious bed 6 (by the fine sand of particle diameter 0.075mm～0.5mm and medium sand by the composition of proportions of 3:1) that is concave shape, the gravel pervious bed 8 that is the sandy gravel pervious bed 7 (by the coarse sand of particle diameter 0.5mm～5mm and granule by the composition of proportions of 1:1) of concave shape and be concave shape is (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 upper surface laminating of the lower surface of gravel pervious bed 8 and impermeable material layer 9, impermeable material layer 9 is presented dome arc shape, in filter row water retention system 2, be provided with gravity and hold row's channel array 3, and gravity is held the vertical filter row water retention system 2 that runs through of row's channel array 3, gravity is held the re-scheduling of row in channel array 3 and insists on one end of row's passage and stand on the highest point of impermeable material layer 9, and, the other end that a described re-scheduling is insisted on row's passage extends past the lowest part of the sandy gravel pervious bed 7 that is concave shape and terminates in the lowest part of planting soil layer 5, be provided with osculum 10 at the highest point of impermeable material layer 9, on osculum 10, be 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 of being constructed by seepy material, there is coarse aggregate 13 and using the hole between coarse aggregate as permeable path in the interior accumulation of through hole 12.
Recessed formula greenbelt system as two end points of up concave type arc section plantation soil layer 5, is selected the suitable recessed degree of depth according to greenbelt width taking the basis of greenbelt both sides curb 4, and Ordinary Rd is 500mm.Greenbelt plants configuration can be according to the requirement of the aspects such as greenbelt width and function, select Qiao Guancao, fill with grass in conjunction with or the various ways such as turf greening, build to have and collect greenbelt rainwater, prevent erosion, increase green coverage, improve the recessed formula greenbelt system of the several functions such as visual effect.
Embodiment 2
A kind of water drainage and water-retaining method of integrated form greenbelt system, dig irrigation canals and ditches at greenbelt place to be built, place in irrigation canals and ditches bottom the impermeable material layer 9 of presenting dome arc shape, be provided with osculum 10 at the highest point of impermeable material layer 9, on osculum 10, be coated with permeable filter screen 11, and osculum 10 is accessed to municipal drainage pipe network, on impermeable material layer 10, lay successively the gravel pervious bed 8 of presenting dome arc shape, be the sandy gravel pervious bed 7 of concave shape, be the sand grains pervious bed 6 of concave shape and be the plantation soil layer 5 of sunken arcs shape, at gravel pervious bed 8, the interior gravity that arranges of sandy gravel pervious bed 7 and sand grains pervious bed 6 is held row's channel array 3, and gravity is held to the re-scheduling of row in channel array 3 and is insisted on one end of row's passage and be arranged on the highest point of impermeable material layer 9, and the other end that makes a described re-scheduling insist on row's passage extends past the lowest part that is the sandy gravel pervious bed 7 of concave shape and terminates in plantation soil layer 5, gravity is held row's channel array 3 and is adopted following methods construction: at gravel pervious bed 8, sandy gravel pervious bed 7 and the interior excavation of sand grains pervious bed 6 are by the hole of array distribution, on the inwall of institute's borehole, lay seepy material to form through hole 12, its spacing 2～3m, diameter 0.5m, in through hole 12, be filled with coarse aggregate 13 and using the hole between coarse aggregate as permeable path.When water drainage, greenbelt internal water accumulation is held row's channel array 3 via gravity and is imported fast municipal drainage pipe network under Action of Gravity Field, improves the impact of greenbelt ponding on roadbed; When water conservation, store at the moisture above impermeable material layer 9 and keep the skin wet at the moisture film on coarse aggregate 13 surfaces for poising under the effect of water potential gradient and capillary force, and along hole Upward Migration, enter greenbelt root zone, effectively solve plant and need water problems.
Claims (5)
1. the integrated form greenbelt system based on water drainage and water conservation, comprise: plant the plantation soil layer (5) that is implanted with plant (1), it is characterized in that, be provided with filter row's water retention system (2) in plantation soil layer (5) below, below at filter row's water retention system (2) is provided with impermeable material layer (9), described plantation soil layer (5) is sunken arcs shape, described filter row's water retention system (2) is by the sand grains pervious bed (6) that is concave shape, the sandy gravel pervious bed (7) and the gravel pervious bed (8) that are concave shape 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 upper surface laminating of the lower surface of gravel pervious bed (8) and impermeable material layer (9), described impermeable material layer (9) is presented dome arc shape, in filter row's water retention system (2), be provided with that gravity is held row's channel array (3) and gravity is held the vertical filter row's water retention system (2) that runs through of row's channel array (3), described gravity is held a re-scheduling in row channel array (3) and insists on one end of row's passage and stand on the highest point of impermeable material layer (9), and, the other end that a described re-scheduling is insisted on row's passage extends past the lowest part that is the sandy gravel pervious bed (7) of concave shape and terminates in plantation soil layer (5), be provided with osculum (10) at the highest point of impermeable material layer (9), on osculum (10), be 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) of being constructed by seepy material, in through hole (12), pile up and have coarse aggregate (13) and using the hole between coarse aggregate as permeable path.
2. the integrated form greenbelt system based on water drainage and water conservation according to claim 1, 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. the integrated form greenbelt system based on water drainage and water conservation according to claim 1, 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. the integrated form greenbelt system based on water drainage and water conservation according to claim 1, it is characterized in that, gravel pervious bed (8) by particle diameter 5～20mm boulderet, the cobble of 20～60mm and the metaling of 60～100mm according to the composition of proportions of 1:1:1.
5. water drainage and the water-retaining method of an integrated form greenbelt system, it is characterized in that, dig irrigation canals and ditches at greenbelt place to be built, place in irrigation canals and ditches bottom the impermeable material layer (9) of presenting dome arc shape, be provided with osculum (10) at the highest point of impermeable material layer (9), on osculum (10), be coated with permeable filter screen (11), and by osculum (10) access municipal drainage pipe network; on impermeable material layer (10), lay successively the gravel pervious bed (8) of presenting dome arc shape, be the sandy gravel pervious bed (7) of concave shape, be the sand grains pervious bed (6) of concave shape and be the plantation soil layer (5) of 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 gravity is held to a re-scheduling in row channel array (3) and is insisted on one end of row's passage and be arranged on the highest point of impermeable material layer (9), and the other end that makes a described re-scheduling insist on row's passage extends past the lowest part that is the sandy gravel pervious bed (7) of concave shape and terminates in plantation soil layer (5), described gravity is held row's channel array (3) and is adopted following methods construction: in gravel pervious bed (8), in sandy gravel pervious bed (7) and sand grains pervious bed (6), excavation is by the hole of array distribution, on the inwall of institute's borehole, lay seepy material to form through hole (12), in through hole (12), be filled with coarse aggregate (13) and using the hole between coarse aggregate as permeable path, when water drainage, greenbelt internal water accumulation is held row's channel array (3) via gravity and is imported fast municipal drainage pipe network under Action of Gravity Field, improves the impact of greenbelt ponding on roadbed, when water conservation, store at the moisture of impermeable material layer (9) top and keep the skin wet for poising at the moisture film on coarse aggregate (13) surface under the effect of water potential gradient and capillary force, and along hole Upward Migration, enter greenbelt root zone, solve plant and need water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410385423.XA CN104145673B (en) | 2014-08-06 | 2014-08-06 | Based on water drainage and the integrated form greenbelt system of water conservation and water drainage and water-retaining method |
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| CN201410385423.XA CN104145673B (en) | 2014-08-06 | 2014-08-06 | Based on water drainage and the integrated form greenbelt system of water conservation and water drainage and water-retaining method |
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| CN104145673B CN104145673B (en) | 2016-03-02 |
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Cited By (3)
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| CN105104062A (en) * | 2015-08-19 | 2015-12-02 | 陈怀荗 | Construction method of multi-functional city sponge green space |
| CN105409568A (en) * | 2015-12-21 | 2016-03-23 | 河海大学 | Retention, storage, filtration, discharge and guide system of hilly extending landscape zone |
| CN107354988A (en) * | 2017-05-25 | 2017-11-17 | 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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| CN107354988A (en) * | 2017-05-25 | 2017-11-17 | 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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| CN104145673B (en) | 2016-03-02 |
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