CN108330912B - Catchment sponge slope protection structure - Google Patents
Catchment sponge slope protection structure Download PDFInfo
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- CN108330912B CN108330912B CN201810284376.8A CN201810284376A CN108330912B CN 108330912 B CN108330912 B CN 108330912B CN 201810284376 A CN201810284376 A CN 201810284376A CN 108330912 B CN108330912 B CN 108330912B
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- slope protection
- slope
- deep purification
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000000746 purification Methods 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000004575 stone Substances 0.000 claims description 37
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- 239000004576 sand Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 6
- 238000012876 topography Methods 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 110
- 241000196324 Embryophyta Species 0.000 description 18
- 239000011159 matrix material Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 241000878007 Miscanthus Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- 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
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- 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
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Abstract
The application relates to a catchment sponge slope protection structure, which comprises at least two slope protection ladder modules arranged side by side and a deep purification diversion area arranged between the slope protection ladder modules, wherein each step of the slope protection ladder modules is sequentially and vertically provided with a landscape catchment mechanism and a stagnant filtration water collecting layer from outside to inside, the landscape catchment mechanism comprises landscape blocks and catchment galleries which are arranged at intervals and are perpendicular to the extending direction of the slope protection, the slope side surface of the slope protection ladder modules is paved with a planting substrate layer, plants are planted on the planting substrate layer, and the bottom of the deep purification diversion area is provided with a rainwater collecting mechanism. According to the application, the stepped catchment sponge slope protection structure is arranged, so that the effects of preventing water and soil loss, guaranteeing the stability of the slope protection structure, retaining and recycling rain and flood and building a slope protection landscape are achieved.
Description
Technical Field
The application relates to the field of urban landscape construction and slope restoration, in particular to a catchment sponge slope protection structure.
Background
In slope restoration, ecological slope protection is a slope protection technology for supporting a slope or a slope by basic knowledge of the disciplines such as comprehensive engineering mechanics, soil science, ecology, botany and the like to form a comprehensive slope protection system consisting of plants or engineering and plants.
Various ecological slope protection technologies such as grass planting slope protection, ecological bag slope protection and grid ecological slope protection have many advantages in aspects such as slope reinforcement and ecological environment protection, are widely applied to ecological management of highway and mountain slope engineering, and are widely applied and extended in river construction and slope protection reconstruction. However, in the areas with serious water and soil loss, uneven precipitation and other ecological weakness, the effect of the traditional ecological slope protection is still limited, and the traditional ecological slope protection is difficult to stagnate and store and recycle the rain and flood, so that the long-term ecological function is difficult to maintain.
Disclosure of Invention
The application aims to solve the problems in the existing ecological slope protection, and provides a catchment sponge slope protection structure, which is provided with a stepped catchment sponge slope protection structure, so that the aims of preventing water and soil loss, ensuring the stability of the slope protection structure, retaining and recycling rain and flood and building a slope protection landscape are achieved integrally.
In order to achieve the above purpose, the application provides a catchment sponge slope protection structure, which comprises at least two slope protection ladder modules arranged side by side and a deep purification diversion area arranged between the slope protection ladder modules, wherein each ladder of the slope protection ladder modules is sequentially and vertically provided with a landscape catchment mechanism and a stagnant filtration water collecting layer from outside to inside, the landscape catchment mechanism comprises landscape blocks and catchment galleries which are arranged at intervals and are perpendicular to the extending direction of the slope protection, the slope side surface of the slope protection ladder module is paved with a planting substrate layer, plants are planted on the planting substrate layer, and the bottom of the deep purification diversion area is provided with a rainwater collecting mechanism.
Preferably, the rainwater collection mechanism is a rainwater collection pipe or a rainwater collection tank.
Preferably, the width of the upper surface of the slope protection step module is 3-8 m, the upper surface of the slope protection step module is a slope with the inner side inclined downwards, the included angle between the upper surface of the slope protection step module and the horizontal plane is 5-10 degrees, and the width of the slope surface side surface of the slope protection step module is 2-3 m; the slope side surface of the slope protection step module is a slope surface which is inclined vertically outwards, and the slope angle of the slope side surface of the slope protection step module is 50-80 degrees.
Preferably, the ground pavement of the landscape block is hard watertight pavement, and a vegetation greening area, a landscape small area or a leisure activity area is arranged on the landscape block.
Preferably, the catchment gallery is a cuboid groove structure communicated with the stagnant filtration water collecting layer, one end of the catchment gallery close to water is closed and is flush with the outer side of the landscape block, and the other end of the catchment gallery far from water is communicated with the stagnant filtration water collecting layer; the gradient of the catchment gallery is the same as the gradient of the upper surface of the slope protection ladder module; a grid is arranged at the joint of the catchment gallery and the stagnant filtration water collecting layer, and the aperture of the grid is 0.2-0.8 cm; and a cobble layer with the grain diameter of 1-3 cm is paved at the bottom of the catchment gallery, and the paving thickness of the cobble layer is 7-15 cm.
Preferably, the stagnant filtration water collecting layer is of a cuboid concrete groove structure communicated with the catchment gallery, one end of the stagnant filtration water collecting layer is closed, the other end of the stagnant filtration water collecting layer is communicated with the deep purification diversion area, the stagnant filtration water collecting layer is obliquely arranged from one closed end to one open end, and the gradient of the stagnant filtration water collecting layer is 3-7 degrees; and one end of the stagnant filtration water collecting layer, which is communicated with the deep purification diversion area, is provided with a graded gravel gabion with specification matched with the stagnant filtration water collecting layer.
Preferably, the inside of the stagnant filtration water collecting layer is sequentially provided with a gravel layer, a sand layer, a coarse sand layer, a fine sand layer and a graded gravel layer from top to bottom, wherein the particle size of gravel in the gravel layer is 0.8-1.5 cm, the particle size of sand in the sand layer is 0.2-0.8 cm, and the particle size of graded gravel in the graded gravel layer is 0.2-0.5 cm; the total thickness of the stagnant filtration water collecting layer is 25-40 cm, and the thickness ratio of the gravel layer, the sand layer, the coarse sand layer, the fine sand layer and the graded gravel layer is 2:1:2:1:1 respectively.
Preferably, the upper surface of the deep purification diversion area is inclined by 3-7 degrees horizontally towards the lower side of the slope; the lower part of the deep purification diversion area is a deep purification substrate layer, wet herbal plants are planted in two sides of the deep purification substrate layer, the deep purification substrate layer comprises a crushed stone layer arranged on the upper layer and a ceramsite layer arranged on the lower layer, the paving thickness of the crushed stone layer is 10-20 cm, and the thickness of the ceramsite layer is 20-35 cm; the ceramic particles in the ceramic particle layer are prepared by foaming and granulating volcanic rock, medical stone and clay, the particle size of the ceramic particles is 0.8-2 cm, and the volume ratio of the clay to the medical stone to the volcanic rock in the ceramic particle layer is (4-5): (2-3): 3.
Preferably, stone plates are paved at intervals on the side edges of the slope surface of the slope protection step module, the length of each stone plate is 30-60 cm, the thickness of each stone plate is 3-5 cm, and the interval distance between every two adjacent stone plates is 20-40 cm; the slope side surface part of the deep purification diversion area is arranged into a stone structure, the width of the stone structure is 30-50 cm, and a water flow speed reducing plate which inclines towards the lower side of the inner side of the slope protection is arranged in the middle of the stone structure at intervals of 30-50 cm.
Preferably, the planting substrate layer is formed by the following components in volume ratio (25-30): (10-15): (20-25): (5-10), namely (25-35) mixing desilting bottom mud, turfy soil, diatomite, coarse sand and planting soil, wherein the volume ratio of the desilting bottom mud to the diatomite is more than or equal to 50%, and the laying thickness of the planting substrate layer is 10-20 cm.
Based on the technical scheme, the application has the advantages that:
1. the catchment sponge slope protection structure can reduce the water pressure in the slope body, entraps rainfall, stagnates and stores to the maximum extent, and plays a role of sponge for supplementing water through purifying, collecting and recycling layer by layer;
2. the catchment sponge slope protection structure can play roles in slope fixing, water erosion prevention and slope protection, water and soil conservation, and can recycle the silt bottom mud to form a planting matrix.
3. The catchment sponge slope protection structure can be provided with a landscape area, so that the living function of the slope protection is increased, and a good landscape effect is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of a catchment sponge slope protection structure.
Detailed Description
The technical scheme of the application is further described in detail through the drawings and the embodiments.
The present application provides a catchment sponge slope protection structure, as shown in fig. 1, in which a preferred embodiment of the present application is shown. Specifically, catchment sponge slope protection structure includes two at least bank protection ladder modules 1 and the setting that set up side by side the deep purification water conservancy diversion district 8 between the bank protection ladder modules 1, each level ladder of bank protection ladder module 1 is equipped with view catchment mechanism, stagnant water collection layer 5 perpendicularly in proper order from outside to inside, view catchment mechanism includes perpendicular to bank protection extending direction interval arrangement's view block 7 and catchment corridor 6, planting matrix layer 2 has been laid on the domatic side surface of bank protection ladder module 1, plant on the planting matrix layer, deep purification water conservancy diversion district 8 bottom is equipped with rainwater collection mechanism.
As shown in fig. 1, the overall structure of the catchment sponge slope protection structure is a stepped structure, the number of steps of the slope protection step module 1, the height and the gradient of each step are required to be set according to the actual slope protection height and the ground height difference, and the step width of the slope protection step module 1 is comprehensively considered and set according to the horizontal distance between the slope protection edge and the ground edge and the number of steps. The whole catchment sponge revetment comprises a plurality of sections catchment sponge revetment units, every catchment sponge revetment unit is 7~ 10m in the length of the extending direction of bank protection.
Preferably, the width of the upper surface of the slope protection step module 1 is 3-8 m, the upper surface of the slope protection step module 1 is a slope with the inner side inclined downwards, the included angle between the upper surface of the slope protection step module 1 and the horizontal plane is 5-10 degrees, and the width of the slope surface side surface of the slope protection step module 1 is 2-3 m; the slope side surface of the slope protection ladder module 1 is a slope surface which is inclined vertically outwards, and the slope angle of the slope side surface of the slope protection ladder module 1 is 50-80 degrees.
It should be noted that, in the present application, the slope-approaching side of the slope protection step module refers to the side surface of each layer of steps of the slope protection step module, which is close to the outer side, and not the side surface of the whole slope protection step module; the upper surface of the slope protection ladder module refers to the upper surface of each layer of ladder structure of the slope protection ladder module, namely the platform surface of each ladder structure, and is not the upper surface of the whole slope protection ladder module.
Further, each step of the slope protection step module 1 is vertically provided with a landscape water collecting mechanism and a stagnation and filtration water collecting layer 5 in sequence from outside to inside, and the landscape water collecting mechanism comprises landscape blocks 7 and water collecting galleries 6 which are arranged at intervals and perpendicular to the extending direction of the slope protection.
The landscape block 7 is arranged on the ground as a hard paving ground for the tourist to walk or leisure. Preferably, the ground pavement of the landscape block 7 is hard watertight pavement, and a vegetation greening area, a landscape small area or a leisure activity area is arranged on the landscape block 7. The vegetation greening area can be provided with a planting area for planting various vegetation such as ornamental plants, and volcanic rocks are paved on the surface layer of the exposed soil. The topography of view area 7 all sets up to the form that the centre is slightly high, both sides are slightly low, and the rainwater runoff of being convenient for flows into the catchment corridor 6 of both sides.
The catchment corridor 6 is an elongated corridor between the landscape blocks 7, and the area of the slope protection ladder module 1 adjacent to the deep purification diversion area 8 is generally set as the catchment corridor 6, and the gradient of the catchment corridor 6 is the same as the gradient of the upper surface of the slope protection ladder module 1. Preferably, the catchment gallery 6 is a rectangular groove structure perpendicular to the stagnant water and water collecting layer 5, and may be also provided in irregular shapes such as waves, fold lines, etc. according to the requirements of the landscape block. The water collecting gallery 6 is closed at the water near end and is flush with the outer side of the landscape block 7, and the water far end of the water collecting gallery 6 is communicated with the stagnant water collecting layer 5. The joint of the catchment gallery 6 and the stagnant filtration water collecting layer 5 is provided with a grid, and the aperture of the grid is 0.2-0.8 cm.
The specification of the catchment corridor 6 is set according to the hard pavement area of the landscape blocks 7 on the two sides of the corridor and the rainfall of the area in 5 years, and the larger the rainfall is, the larger the specification of the catchment corridor 6 is, the width is generally 0.2-0.3 m, and the depth is generally 10-20 cm. The catchment gallery 6 is of a concave concrete structure, the bottom layer is impermeable, a cobble layer with the grain size of 1-3 cm is paved at the bottom of the catchment gallery 6, and the paving thickness of the cobble layer is 7-15 cm.
Preferably, the stagnant water layer 5 is a cuboid concrete groove structure communicated with the catchment gallery 6. The one end of the stagnant filtration water collecting layer 5 is closed, the other end is communicated with the deep purification diversion area 8, the stagnant filtration water collecting layer 5 is obliquely arranged from one closed end to one open end, the gradient of the stagnant filtration water collecting layer 5 is 3-7 degrees, and water collected in the stagnant filtration water collecting layer 5 conveniently flows to the deep purification diversion area 8. And one end of the stagnant filtration water collecting layer 5, which is communicated with the deep purification diversion area 8, is provided with a graded gravel gabion with specification matched with the stagnant filtration water collecting layer 5.
As shown in fig. 1, the stagnant water filtering and collecting layer 5 is located at one end of the inner side end of the step upper surface of the slope protection step module 1, extends in the same direction as the slope protection extending direction, is of a cuboid concrete concave structure communicated with the water collecting gallery 6, and is arranged at one end opening of the water collecting gallery 6 so as to facilitate the inflow of rainwater runoff. The specification of the stagnant water filtration water collection layer 5 is set according to the water collection area and the rainfall after 5 years. Generally, the width of the stagnant water layer 5 is set to be 30-50 cm and the depth is set to be 45-60 cm. Preferably, the inside of the stagnant filtration water collecting layer 5 is sequentially provided with a gravel layer, a sand layer, a coarse sand layer, a fine sand layer and a graded gravel layer from top to bottom, wherein the particle size of gravel in the gravel layer is 0.8-1.5 cm, the particle size of sand in the sand layer is 0.2-0.8 cm, and the particle size of graded gravel in the graded gravel layer is 0.2-0.5 cm; the total thickness of the stagnant filtration water-collecting layer 5 is 25-40 cm, and the thickness ratio of the gravel layer, the sand layer, the coarse sand layer, the fine sand layer and the graded gravel layer is 2:1:2:1:1 respectively.
Preferably, one end of the stagnant filtration water collecting layer 5, which is communicated with the deep purification diversion area 8, is provided with a graded gravel gabion with the specification which is matched with the stagnant filtration water collecting layer 5, the thickness of the graded gravel gabion is 25-40 cm, and the arrangement of the structure can effectively avoid the disorder of the structure of the deep purification diversion area 8 and prevent filter materials from being gathered into the deep purification diversion area 8 in the next step of the slope protection step module 1.
The depth of the deep purification diversion area 8 is 45-60 cm as the depth of the stagnant filtration water-collecting layer 5, and the width of the deep purification diversion area 8 is 50-70 cm. In order to smoothly collect and guide out the rainwater runoffs, the inclination angle of the upper surface of the deep purification diversion area 8 is opposite to that of the upper surface of the slope protection ladder module 1, and the upper surface of the deep purification diversion area 8 is provided with an inclination angle which is inclined by 3-7 degrees horizontally to the side lower part of the slope. A deep purification substrate layer is arranged below the deep purification diversion area 8, and wet herbaceous plants such as horseshoe gold, leaf-shaped miscanthus, fine leaf-shaped miscanthus, and herba Ardisiae Japonicae with smaller plants are planted in the two sides of the deep purification substrate.
Preferably, the deep purification matrix layer comprises a crushed stone layer arranged on the upper layer and a ceramsite layer arranged on the lower layer, wherein the paving thickness of the crushed stone layer is 10-20 cm, and the thickness of the ceramsite layer is 20-35 cm. The ceramic particles in the ceramic particle layer are prepared by foaming and granulating volcanic rock, medical stone and clay, the particle size of the ceramic particles is 0.8-2 cm, and the volume ratio of the clay to the medical stone to the volcanic rock in the ceramic particle layer is (4-5): (2-3): 3.
Preferably, stone plates 9 are paved at intervals on the side edges of the slope surface of the slope protection step module 1. Specifically, in order to enhance structural stability and integrity, stone plates 4 with the width consistent with a rectangular area with the width of 30-50 cm along the extension direction of the slope are paved at intervals in the edge area on the outer side of the upper surface of the slope, and the stone plates 4 are stone materials with better pressure resistance and higher strength, such as basalt, granite and the like. The length of the stone plate 4 is 30-60 cm, the thickness of the stone plate 4 is 3-5 cm, the spacing distance between every two adjacent stone plates 4 is 20-40 cm, and the substrate treatment and the plant planting mode of the spacing area of the stone plates 4 are the same as those of the slope side surface of the slope protection step module 1.
As shown in fig. 1, a planting substrate layer 2 is laid on the slope side surface of the slope protection step module 1, and plants are planted on the planting substrate layer. The planting substrate layer 2 is arranged on soil on the slope side surface of the slope protection ladder module 1, and the planting substrate layer 2 has the characteristics of scour resistance, water flooding resistance and slope stabilization. Preferably, the planting substrate layer 2 is formed by the following components in volume ratio (25-30): (10-15): (20-25): (5-10), namely (25-35) mixing desilting bottom mud, turfy soil, diatomite, coarse sand and planting soil, wherein the volume ratio of the desilting bottom mud to the diatomite is more than or equal to 50%, and the laying thickness of the planting substrate layer 2 is 10-20 cm. If heavy metals exist in the dredging bottom mud, a small amount of stable heavy metal chelating agent can be added into the dredging bottom mud to remove the heavy metals, such as DTC derivatives and the like.
When plants are planted on the planting substrate layer, a layer of vine plants with rapid growth and developed root systems is planted first, and after the vine plants grow vigorously and the substrate layer is stable, grass irrigation plants with developed root systems and barren tolerance are planted in a grid shape. The planting structure covers the entire side surface and an upper surface edge area connected to the upper surface. The other slope substrate and the plant planting range extend upwards to the outer edge zone of the upper surface except the side surface closest to the ground.
The deep purification diversion area 8 extends to the side surface from the upper surface of the slope protection ladder module 1, the slope side surface part of the deep purification diversion area 8 is arranged into a stone structure, the width of the stone structure is 30-50 cm, and the depth is consistent with the upper surface. The middle part of the stone structure is provided with a water flow reducing plate 3 which inclines towards the lower part of the inner side of the slope protection at intervals of 30-50 cm, the structure is of a stone structure, rainwater firstly enters the first-stage water flow reducing plate 3 when flowing down from the upper surface deep purification diversion area 8, sequentially enters the following stages through a water outlet at the lower end of the first water flow reducing plate 3, and then enters the upper surface deep purification diversion area 8 of the next stage of steps. The bottom of the deep purification diversion area (8) is provided with a rainwater collection mechanism, and specifically, each stage of deep purification diversion area 8 can be provided with a rainwater collection mechanism for rainwater collection and recycling. The deep purification diversion area 8 which is integrated into the lowest stage can be collected and recycled in a concentrated way through a rainwater collecting mechanism, wherein the rainwater collecting mechanism is a rainwater collecting pipe or a rainwater collecting tank, and a rainwater on-site recycling container, such as a reservoir, can be added for recycling.
The catchment sponge slope protection structure of the application has at least the following advantages:
1. the catchment sponge slope protection structure can reduce the water pressure in the slope body, entraps rainfall, stagnates and stores to the maximum extent, and plays a role of sponge for supplementing water through purifying, collecting and recycling layer by layer;
2. the catchment sponge slope protection structure can play roles in slope fixing, water erosion prevention and slope protection, water and soil conservation, and can recycle the silt bottom mud to form a planting matrix.
3. The catchment sponge slope protection structure can be provided with a landscape area, so that the living function of the slope protection is increased, and a good landscape effect is achieved.
The catchment sponge slope protection structure can be constructed by referring to the following steps:
(1) Setting the slope protection specification according to slope conditions and engineering requirements.
(3) And carrying out topography construction and surface structure construction of the catchment sponge slope protection structure according to the slope protection specification.
(4) After the substrate layer is laid on the side surface of the catchment sponge slope protection, a layer of vine plants with rapid growth and developed root systems is planted on the side surface, after the vine plants grow vigorously and the substrate layer is stable, grass irrigation plants with developed root systems and barren resistance are planted in a grid shape, and the planting structure covers the whole side surface and the edge area of the upper surface connected with the upper surface.
(5) After rainfall, the rainwater of the landscape block on the slope protection is collected into the stagnant water filtration water collection layer after being preliminarily filtered by the water collection gallery, is collected into the deep purification diversion area after being temporarily stagnated and secondarily filtered in the area, and is collected into the rainwater collection device after being purified by the deep purification diversion area.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present application and are not limiting; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the application, it is intended to cover the scope of the application as claimed.
Claims (10)
1. Catchment sponge slope protection structure, its characterized in that: including at least two bank protection ladder modules (1) that set up side by side and setting are in deep purification water conservancy diversion district (8) between bank protection ladder modules (1), bank protection ladder module (1) upper surface width is 3~8m, bank protection ladder module (1) upper surface is inboard downwardly sloping's domatic, the upper surface and the horizontal angle of bank protection ladder module (1) are 5~10, each level ladder of bank protection ladder module (1) is equipped with view catchment mechanism, stagnate and strain catchment layer (5) from outside and inside perpendicularly in proper order, view catchment mechanism includes view block (7) and catchment corridor (6) of perpendicular to bank protection extension direction interval arrangement, view block (7) ground sets up the stereoplasm ground that supplies the tourist to walk or leisure, plant substrate layer (2) are laid to slope side surface of bank protection ladder module (1), plant substrate layer (2) are planted on, plant substrate layer (2) by volume ratio is (25 ~ 30): (10-15): (20-25): (5-10): (25-35) desilting bed mud, turfy soil, diatomite, coarse sand, planting soil are mixed, wherein, desilting bed mud and diatomite's volume ratio is not less than 50%, deep purification water conservancy diversion district (8) bottom is equipped with rainwater collection mechanism, and the topography of view area (7) all sets up to the topography slightly high in the middle, both sides slightly low, and the rainwater runoff inflow both sides of being convenient for catchments corridor (6), and the rainwater of view area (7) is passed through catchment corridor (6) and is catchmented water collection layer (5) in stagnating, is catchmented deep purification water conservancy diversion district (8) after temporarily stagnating and secondary filtration to the rainwater.
2. The catchment sponge slope protection structure of claim 1, wherein: the rainwater collecting mechanism is a rainwater collecting pipe or a rainwater collecting tank.
3. The catchment sponge slope protection structure of claim 1, wherein: the width of the slope side surface of the slope protection step module (1) is 2-3 m; the slope surface side surface of the slope protection step module (1) is a slope surface which is inclined vertically outwards, and the slope surface angle of the slope surface side surface of the slope protection step module (1) is 50-80 degrees.
4. The catchment sponge slope protection structure of claim 1, wherein: the ground pavement of the landscape block (7) is hard waterproof pavement, and a vegetation greening area, a landscape small area or a leisure activity area is arranged on the landscape block (7).
5. The catchment sponge slope protection structure of claim 1, wherein: the catchment gallery (6) is of a cuboid groove structure communicated with the stagnant filtration water collecting layer (5), one water-near end of the catchment gallery (6) is sealed and is flush with the outer side of the landscape block (7), and the water-far end of the catchment gallery (6) is communicated with the stagnant filtration water collecting layer (5); the gradient of the catchment gallery (6) is the same as the gradient of the upper surface of the slope protection step module (1); a grid is arranged at the joint of the catchment gallery (6) and the stagnant filtration water collecting layer (5), and the aperture of the grid is 0.2-0.8 cm; and a cobble layer with the grain diameter of 1-3 cm is paved at the bottom of the catchment gallery (6), and the paving thickness of the cobble layer is 7-15 cm.
6. The catchment sponge slope protection structure of claim 1, wherein: the stagnation and filtration water collecting layer (5) is of a cuboid concrete groove structure communicated with the catchment gallery (6), one end of the stagnation and filtration water collecting layer (5) is sealed, the other end of the stagnation and filtration water collecting layer is communicated with the deep purification diversion area (8), the stagnation and filtration water collecting layer (5) is obliquely arranged from one sealed end to one open end, and the gradient of the stagnation and filtration water collecting layer (5) is 3-7 degrees; one end of the stagnant filtration water collecting layer (5) communicated with the deep purification diversion area (8) is provided with a graded gravel gabion with specification matched with the stagnant filtration water collecting layer (5).
7. The catchment sponge slope protection structure of claim 6, wherein: the inside of the stagnant filtration water collecting layer (5) is sequentially provided with a gravel layer, a sand layer, a coarse sand layer, a fine sand layer and a graded gravel layer from top to bottom, wherein the particle size of gravel in the gravel layer is 0.8-1.5 cm, the particle size of sand in the sand layer is 0.2-0.8 cm, and the particle size of graded gravel in the graded gravel layer is 0.2-0.5 cm; the total thickness of the stagnant filtration water collecting layer (5) is 25-40 cm, and the thickness ratio of the gravel layer, the sand layer, the coarse sand layer, the fine sand layer and the graded gravel layer is 2:1:2:1:1 respectively.
8. A catchment sponge slope protection structure as defined in claim 3, wherein: the upper surface of the deep purification diversion area (8) is inclined horizontally to the lower side of the slope surface side by 3-7 degrees; the lower part of the deep purification diversion area (8) is a deep purification substrate layer, wet herbal plants are planted in two sides of the deep purification substrate layer, the deep purification substrate layer comprises a crushed stone layer arranged on the upper layer and a ceramsite layer arranged on the lower layer, the paving thickness of the crushed stone layer is 10-20 cm, and the thickness of the ceramsite layer is 20-35 cm; the ceramic particles in the ceramic particle layer are prepared by foaming and granulating volcanic rock, medical stone and clay, the particle size of the ceramic particles is 0.8-2 cm, and the volume ratio of the clay to the medical stone to the volcanic rock in the ceramic particle layer is (4-5): (2-3): 3.
9. The catchment sponge slope protection structure of claim 1, wherein: the slope protection step module is characterized in that stone plates (4) are paved at intervals on the side edges of slope surfaces of the slope protection step module (1), the length of each stone plate (4) is 30-60 cm, the thickness of each stone plate (4) is 3-5 cm, and the interval distance between every two adjacent stone plates (4) is 20-40 cm; the slope side surface part of the deep purification diversion area (8) is of a stone structure, and a water flow speed reducing plate (3) inclining towards the lower side of the inner side of the slope protection is arranged in the middle of the stone structure at intervals of 30-50 cm.
10. The catchment sponge slope protection structure of claim 1, wherein: the laying thickness of the planting substrate layer (2) is 10-20 cm.
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| CN109045782B (en) * | 2018-08-09 | 2021-10-08 | 苏州金螳螂园林绿化景观有限公司 | Rainwater recovery processing system |
| CN111139862A (en) * | 2020-02-19 | 2020-05-12 | 季坤 | Construct assembled retaining wall in sponge city |
| CN114702193B (en) * | 2022-02-08 | 2023-01-20 | 浙江水利水电学院 | Landscape type water quality purification facility |
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