CN114108558A - Urban inland river dike ecological landscape protection system and construction method - Google Patents
Urban inland river dike ecological landscape protection system and construction method Download PDFInfo
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- CN114108558A CN114108558A CN202111410289.0A CN202111410289A CN114108558A CN 114108558 A CN114108558 A CN 114108558A CN 202111410289 A CN202111410289 A CN 202111410289A CN 114108558 A CN114108558 A CN 114108558A
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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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
An urban inland river embankment ecological landscape protection system and a construction method belong to the field of embankment protection. The invention aims to solve the problem that the existing urban inland river landscape dam can not realize firm and durable dam and has better ecological ornamental value. An urban inland river dyke ecological landscape protection system comprises: the ecological revetment structure comprises an original earth dam, a dam protection layer, an ecological landscape layer, reinforcing feet, a plurality of anticorrosion fixing anchor rods, emergent aquatic vegetation and landscape vegetation; the reinforcing foot is arranged at the bottom of the water-facing side slope of the original earth dam; the dam protection layer is abutted against one side of the original earth dam, which is far away from the earth surface; the ecological landscape layer is abutted against one side of the dam protection layer, which is far away from the original earth dam; a plurality of anti-corrosion fixing anchor rods sequentially penetrate through the ecological landscape layer, the dam protection layer and the original earth dam; the construction method comprises the following steps: building reinforcing feet, paving a dam protection layer, fixing an ecological alloy grid, filling vegetation soil, and planting vegetation. The method is used for building the urban inland river dike ecological landscape protection system.
Description
Technical Field
The invention belongs to the field of dike protection, and particularly relates to an urban inland river dike ecological landscape protection system and a construction method.
Background
The urban inland river dike is a water retaining building built along the edge of a river channel, can resist flood and prevent river water from overflowing a river bed. In recent years, along with the enhancement of environmental awareness and economic strength of people, the ecological landscape type embankment is widely used for the construction of urban inland river embankments.
The lead wire gabion is often used for protecting an embankment in a river channel, is a box-shaped structure with hexagonal meshes woven, is hollow and is used for filling stones, and the weaving process comprises three twisted pairs and five twisted pairs. The lead wire gabion is a flexible structure which can be deformed and can bear the influence caused by uneven settlement. The plumbous silk gabion can realize the effect of ecological greening, and the space between the stones can retain soil, provides nourishment for the ecological landscape dyke.
The ecological and golden grid is formed by welding high polymer materials, can replace the traditional reinforced concrete and has the function of environmental protection and treatment on the dike. The ecological alloy grid is of a flexible stable structure and is resistant to impact and settlement. The ecological and gold grid has the advantages of being recyclable and reusable, simple in process, convenient to construct, compact, light and labor-saving and the like.
The existing urban inland river landscape dam can not realize firm and durable dam and has better ecological ornamental value.
Disclosure of Invention
In order to solve the problem that the existing urban inland river landscape dykes and dams cannot be firm and durable and have good ecological ornamental value, the urban inland river dyke ecological landscape protection system and the construction method are provided.
An urban inland river dyke ecological landscape protection system, comprising: the ecological revetment structure comprises an original earth dam, a dam protection layer, an ecological landscape layer, reinforcing feet, a plurality of anticorrosion fixing anchor rods, emergent aquatic vegetation and landscape vegetation;
the slope of the water-facing side slope surface of the original earth dam is 30-35 degrees, the reinforcing foot is arranged at the water-facing side slope bottom of the original earth dam, and the reinforcing foot part extends to the bottom of a riverbed; the dam protection layer is abutted against one side of the original earth dam, which is far away from the earth surface; the ecological landscape layer is abutted against one side of the dam protection layer, which is far away from the original earth dam, and comprises a plurality of ecological alloy grids and vegetation growth fillers, and the vegetation growth fillers are filled in the plurality of ecological alloy grids; one side of the reinforcing foot extending out of the bottom of the riverbed is abutted with the original soil dam, the dam protection layer and the ecological landscape layer; the emergent aquatic vegetation is arranged on the wading section of the ecological landscape layer, and the landscape vegetation is arranged on the part above the water surface of the ecological landscape layer;
a plurality of anti-corrosion fixing anchor rods are distributed at intervals on the dam body and are sequentially connected with the ecological landscape layer, the dam protection layer and the original earth dam in series, and the ecological alloy grid is fixed through the anti-corrosion fixing anchor rods; the anti-corrosion fixing anchor rod comprises a limiting assembly and an anchor rod, one end of the anchor rod is connected with the limiting assembly, one end of the anchor rod, which deviates from the limiting assembly, penetrates through the dam protection layer and extends into the original soil dam, and the transverse and longitudinal distribution intervals of the anti-corrosion fixing anchor rod are 2-3 grid distances of the ecological alloy grids.
A construction method of an urban inland river dyke ecological landscape protection system is completed according to the following construction steps:
firstly, removing sundries and soft soil layers on the top surface of a slope of an original earth dam and the surface of the slope, exposing and rolling a compact soil layer, building reinforcing feet at the bottom of the slope of the original earth dam by using a lead wire gabion II, paving a gravel layer of 5-10 cm on the surface of the original earth dam for leveling, paving a refilter layer on the surface of the gravel layer, and paving a lead wire gabion I on the surface of the refilter layer from the reinforcing feet to serve as a dam protection layer; paving a reverse filter layer on the surface of the dam protection layer, marking the positions of anchor rods according to the pre-distributed positions of the ecological alloy grids, arranging one anchor rod at the grid distance of 2-3 ecological alloy grids respectively in the transverse direction and the longitudinal direction, punching at the position of the marked anchor rods until the punching depth reaches the original dam, and then driving the anti-corrosion fixed anchor rods into the dam according to the marked positions to ensure that the height of the anti-corrosion fixed anchor rods protruding out of the dam protection layer is equal to the height of the ecological alloy grids;
laying the ecological alloy grid on a reverse filtering layer on the upper surface of the dam protection layer, and fixing the ecological alloy grid by using an anti-corrosion fixing anchor rod through a series lead wire which passes through a ring element to be connected with a lead wire gabion I and a limiting assembly of the dam protection layer in series;
filling the ecological alloy grid with vegetation growth filler and compacting, wherein the filling thickness of the vegetation growth filler is 5-8 cm higher than the height of the ecological alloy grid;
and fourthly, planting emergent aquatic vegetation on the wading section of the ecological landscape layer, planting landscape vegetation on the part above the water surface of the ecological landscape layer, and watering the landscape vegetation in good time.
The invention has the advantages that: the emergent aquatic vegetation and the landscape vegetation of the ecological landscape layer establish a stable ecological system, so that the ornamental value of river levees in cities is improved, new urban landscape is provided for urban construction, and the urban environment is beautified; the landscape vegetation can reduce the erosion of wind and rain to the river bank main body, protect the river bank and prolong the service life of the river bank; thirdly, the emergent aquatic vegetation of the invention improves the ecological environment of river water, seeds, rotten leaves and the like of the emergent aquatic vegetation provide nutrients for aquatic organisms, and the emergent aquatic vegetation is beneficial to the growth of the organisms in the river water; fourthly, a stable river bank structure is established by the original earth dam, the dam protection layer, the ecological landscape layer and the reinforcing feet, and the river bank is further reinforced by a plurality of anticorrosion fixing anchor rods, so that the integrity of the river bank is enhanced, and the flood control function of the river bank is improved; dykes and dams protective layer is laid by plumbous silk gabion I and is formed, and there are more holes inside, and the hydroenergy of infiltration can in time be discharged, has reduced the destroyed probability of river levee, and dykes and dams protective layer's deformability can cushion the impact of external force, prolongs the life of river levee.
Drawings
FIG. 1 is a schematic structural view of an urban inland river dyke ecological landscape protection system of the present invention;
FIG. 2 is a schematic structural view of the anti-corrosion fixing anchor rod of the present invention;
fig. 3 is a schematic structural view of the connector of the present invention.
Description of reference numerals: 1-original earth dam, 2-dam protection layer, 3-ecological landscape layer, 4-reinforcing feet, 5-anticorrosion fixed anchor rod, 6-inverted filter layer, 7-emergent aquatic vegetation, 8-landscape vegetation, 9-gravel layer, 31-vegetation growth filler, 32-ecological alloy grid, 33-connecting piece, 51-limiting component, 52-anchor rod, 511-annular piece, 512-clamping arm, 513-cylindrical cone, 514-through hole, 515-upper port and 516-lower port.
Detailed Description
The first embodiment is as follows: as shown in fig. 1, the present embodiment is an urban inland river dyke ecological landscape protection system, which is characterized by comprising: the ecological soil retaining wall comprises an original soil dam 1, a dam protection layer 2, an ecological landscape layer 3, reinforcing feet 4, a plurality of anticorrosion fixing anchor rods 5, emergent aquatic vegetation 7 and landscape vegetation 8;
the slope of the water-facing side slope surface of the original earth dam 1 is 30-35 degrees, the reinforcing feet 4 are arranged at the water-facing side slope bottom of the original earth dam 1, and the reinforcing feet 4 partially extend to the bottom of a riverbed; the dam protection layer 2 is abutted against one side of the original earth dam 1, which is far away from the earth surface; the ecological landscape layer 3 is abutted against one side of the dam protection layer 2, which is far away from the original earth dam 1, the ecological landscape layer 3 comprises a plurality of ecological alloy grids 32 and vegetation growth fillers 31, and the vegetation growth fillers 31 are filled in the plurality of ecological alloy grids 32; one side of the reinforcing foot 4 extending out of the bottom of the riverbed is abutted against the original soil dam 1, the dam protection layer 2 and the ecological landscape layer 3; the emergent aquatic vegetation 7 is arranged at the wading section of the ecological landscape layer 3, and the landscape vegetation 8 is arranged at the part above the water surface of the ecological landscape layer 3;
a plurality of the anti-corrosion fixing anchor rods 5 are distributed at intervals on the dam body and are sequentially connected with the ecological landscape layer 3, the dam protection layer 2 and the original earth dam 1 in series, and the ecological alloy grid 32 is fixed through the anti-corrosion fixing anchor rods 5; the anti-corrosion fixed anchor rod 5 comprises a limiting assembly 51 and an anchor rod 52, one end of the anchor rod 52 is connected with the limiting assembly 51, one end of the anchor rod 52, which is far away from the limiting assembly 51, penetrates through the dam protection layer 2 and extends into the original earth dam 1, and the transverse and longitudinal distribution intervals of the anti-corrosion fixed anchor rod 5 are 2-3 grid distances of the ecological alloy grids 32.
The second embodiment is as follows: the difference between the embodiment and the specific embodiment is that the tamping density of the top slope surface and the surface of the slope surface of the original earth dam 1 is more than 93%, the top slope surface and the slope surface of the original earth dam 1 are provided with gravel layers 9, and the thickness of the gravel layers 9 is 5 cm-10 cm. Other components and connection modes are the same as those of the first embodiment.
The gravel layer 9 is used for leveling the surface of the original earth dam 1, so that the surface of the original earth dam 1 is smooth, a good laying condition is provided for the dam protection layer 2, the original earth dam 1 and the dam protection layer 2 are tighter, and gaps are not easy to generate.
The third concrete implementation mode: as shown in fig. 1, the second embodiment is different from the first embodiment in that a reverse filter layer 6 is laid between the gravel layer 9 and the dam protection layer 2, and between the dam protection layer 2 and the ecological landscape layer 3, and the reverse filter layer 6 is a short fiber or long fiber needle-punched non-woven fabric layer having a burst strength of more than 5.5 kN. Other components and connection modes are the same as those of the second embodiment.
The fourth concrete implementation mode: the third difference between the present embodiment and the specific embodiment lies in that the dam protection layer 2 is formed by laying a plurality of lead wire gabions I; the length of the lead wire gabion I is 0.3-0.5 m, the width of the lead wire gabion I is 0.3-0.5 m, and the height of the lead wire gabion I is 0.3-0.5 m; the lead wire gabion I comprises a net cage I and stones I, and the stones I are filled in the net cage I; the net cage I is made of steel wires plated with Golgin anti-corrosion treatment and with the diameter of not less than 2.2 mm; the stone I is pebbles, flaked stones or blockstones with the grain size of 7.5 cm-15 cm, and the void ratio filled by the stone I is not more than 30%; the inverted filter 6 laid on the surface of the gravel layer 9 by the lead wire gabions I deviates from the direction of the gravel layer 9, and the laying layer number of the lead wire gabions I is one layer. Other components and connection modes are the same as those of the third embodiment.
The stone material I is anti-weathering hard rock.
The fifth concrete implementation mode: as shown in fig. 3, the fourth difference between the present embodiment and the specific embodiment is that the ecological alloy grid 32 includes a plurality of three-dimensional grid groups, the three-dimensional grid groups are connected by connectors 33, and the three-dimensional grid groups are formed by ultrasonically welding a plurality of three-dimensional grids; the ecological alloy grid 32 is made of a polymer alloy composite material, the yield strength of the ecological alloy grid 32 is not less than 24MPa, and the oxidation induction time is not less than 200 min; the ecological alloy grid 32 is provided with drain holes; the height of the ecological alloy grid 32 is not less than 25 cm; paving the ecological alloy grids 32 at intervals of 30-80 cm in the direction of the inverted filter layer 6 on the surface of the dam protection layer 2 deviating from the dam protection layer 2; the ecological alloy grid 32 is filled with the vegetation growth filler 31, and the thickness of the vegetation growth filler 31 is 5 cm-8 cm higher than the height of the ecological alloy grid 32. The other components and the connection mode are the same as those of the fourth embodiment.
The material of the ecological alloy grid 32 can be high-density polyethylene or polyester fiber.
The sixth specific implementation mode: the fifth difference from the specific embodiment lies in that the vegetation growth filler 31 is vegetation soil, or the volume ratio of the vegetation soil to the gravel is (30-70): (30-70) a mixed filler. The other components and the connection mode are the same as the fifth embodiment mode.
The seventh embodiment: the sixth difference between the present embodiment and the specific embodiment is that the reinforcing feet 4 are built by a plumbous gabion II, the length of the plumbous gabion II is not less than 1m, the width of the plumbous gabion II is not less than 1m, and the height of the plumbous gabion II is not less than 1 m; the lead wire gabion II comprises a net cage II and a stone II, wherein the stone II is filled in the net cage II, the net cage II is made of steel wires plated with Golgin anticorrosion treatment and with the diameter of not less than 2.5mm, the stone II is pebbles, flakelets or blockstones with the grain size of not less than 15cm, and the void ratio filled by the stone II is not more than 30%. Other components and connection modes are the same as those of the sixth embodiment.
The stone material II is anti-weathering hard rock.
The specific implementation mode is eight: as shown in fig. 2, the seventh embodiment is different from the seventh embodiment in that the position-limiting assembly 51 includes a cylindrical cone 513, a holding arm 512 and an annular hole 511, and the holding arm 512 and the annular hole 511 are oppositely disposed on two sides of the cylindrical cone 513; a through hole 514 is formed inside the cylindrical cone 513, and the through hole 514 comprises: an upper port 515 and a lower port 516, the through hole 514 being wedge-shaped; the anchor rod 52 is matched with the through hole 514, and the limiting assembly 51 is connected with the anchor rod 52 through the through hole 514; one end of the clamping arm 512 is connected with the cylindrical cone 513; the limiting component 51 is connected with the lead wire gabion I through the annular hole 511 by a series lead wire; the anchor rod 52 is made of vinyl glass fiber reinforced plastics, and the diameter of the anchor rod 52 is 1.4cm, and the length of the anchor rod is not less than 80 cm. The other components and the connection mode are the same as those of the seventh embodiment.
The limiting component 51 is connected with the lead wire gabion I through the annular hole 511 by the series lead wires, so that the ecological alloy grid 32 can be further fixed, and the connection between the ecological alloy grid 32 and the dam body is more stable.
The anchor rod 52 is made of vinyl glass fiber reinforced plastic, and has the advantages of corrosion resistance, good mechanical property and the like.
The specific implementation method nine: the eighth embodiment is different from the eighth embodiment in that the emergent aquatic vegetation 7 is one or more of reed, cattail, water chestnut, lotus, cress, wild rice plant, lotus and cattail; the plant landscape vegetation 8 is one or more of festuca arundinacea, paradise, bluegrass, manila grass, ryegrass, equisetum, bermuda grass and green. The other components and connection modes are the same as those of the eighth embodiment.
The detailed implementation mode is ten: the construction method of the urban inland river dyke ecological landscape protection system is completed according to the following construction steps:
firstly, removing sundries and soft soil layers on the top surface of a slope of an original earth dam 1 and the surface of the slope, exposing a compact soil layer and rolling, building a reinforcing foot 4 at the bottom of the slope of the original earth dam 1 by using a lead wire stone cage II, paving a gravel layer 9 of 5 cm-10 cm on the surface of the original earth dam 1 for leveling, paving a reverse filter layer 6 on the surface of the gravel layer 9, and paving a lead wire stone cage I on the surface of the reverse filter layer 6 from the reinforcing foot 4 to serve as a dam protection layer 2; laying a reverse filter layer 6 on the surface of the dam protection layer 2, marking the positions of anchor rods 52 according to the pre-distribution positions of the ecological alloy grids 32, arranging one anchor rod 52 at the grid distance of 2-3 ecological alloy grids 32 in the transverse direction and the longitudinal direction, punching at the position of the marked anchor rods 52 until the punching depth reaches the original dam 1, and then driving the anti-corrosion fixing anchor rods 5 into the dam protection layer 2 according to the marked positions to ensure that the height of the anti-corrosion fixing anchor rods 5 protruding out of the dam protection layer 2 is equal to the height of the ecological alloy grids 32;
secondly, laying the ecological alloy grids 32 on the inverted filter layer 6 on the upper surface of the dam protection layer 2, connecting a lead wire in series with a lead wire gabion I and a limiting component 51 of the dam protection layer in series through a ring-shaped member (511), and clamping the ecological alloy grids 32 by using a clamping arm 512;
thirdly, filling the ecological alloy grid 32 with vegetation growth filler 31 and compacting, wherein the filling thickness of the vegetation growth filler 31 is 5-8 cm higher than the height of the ecological alloy grid 32;
and fourthly, planting emergent aquatic vegetation 7 on the wading section of the ecological landscape layer 3, planting landscape vegetation 8 on the part above the water surface of the ecological landscape layer 3, and watering the landscape vegetation 8 in due time.
Example 1: an urban inland river dyke ecological landscape protection system, it includes: the ecological soil retaining wall comprises an original soil dam 1, a dam protection layer 2, an ecological landscape layer 3, reinforcing feet 4, a plurality of anticorrosion fixing anchor rods 5, emergent aquatic vegetation 7 and landscape vegetation 8;
the slope of the water-facing side slope surface of the original earth dam 1 is 32 degrees, the reinforcing feet 4 are arranged at the water-facing side slope bottom of the original earth dam 1, and the part of the reinforcing feet 4 extends to the bottom of a riverbed; the dam protection layer 2 is abutted against one side of the original earth dam 1, which is far away from the earth surface; the ecological landscape layer 3 is abutted against one side of the dam protection layer 2, which is far away from the original earth dam 1, the ecological landscape layer 3 comprises a plurality of ecological alloy grids 32 and vegetation growth fillers 31, and the vegetation growth fillers 31 are filled in the plurality of ecological alloy grids 32; one side of the reinforcing foot 4 extending out of the bottom of the riverbed is abutted against the original soil dam 1, the dam protection layer 2 and the ecological landscape layer 3; the emergent aquatic vegetation 7 is arranged at the wading section of the ecological landscape layer 3, and the landscape vegetation 8 is arranged at the part above the water surface of the ecological landscape layer 3;
a plurality of the anti-corrosion fixing anchor rods 5 are distributed at intervals on the dam body and are sequentially connected with the ecological landscape layer 3, the dam protection layer 2 and the original earth dam 1 in series, and the ecological alloy grid 32 is fixed through the anti-corrosion fixing anchor rods 5; the anti-corrosion fixed anchor rod 5 comprises a limiting assembly 51 and an anchor rod 52, one end of the anchor rod 52 is connected with the limiting assembly 51, one end of the anchor rod 52, which is far away from the limiting assembly 51, penetrates through the dam protection layer 2 and extends into the original earth dam 1, and the transverse and longitudinal distribution intervals of the anti-corrosion fixed anchor rod 5 are 2 lattice distances of the ecological alloy grids 32.
The tamping density of the top surface and the slope surface of the original earth dam 1 is more than 93%, the top surface and the slope surface of the original earth dam 1 are provided with gravel layers 9, and the thickness of each gravel layer 9 is 8 cm.
And a reverse filter layer 6 is laid between the gravel layer 9 and the dam protection layer 2, and between the dam protection layer 2 and the ecological landscape layer 3, and the reverse filter layer 6 is a short fiber or long fiber needle-punched non-woven fabric layer with the bursting strength of more than 5.5 kN.
The dam protection layer 2 is formed by laying a layer of lead wire gabion I; the length of the lead wire gabion I is 0.4m, the width of the lead wire gabion I is 0.4m, and the height of the lead wire gabion I is 0.4 m; the lead wire gabion I comprises a net cage I and stones I, and the stones I are filled in the net cage I; the net cage I is made of steel wires plated with Golgin anti-corrosion treatment and the diameter of the steel wires is 2.5 mm; the stone material I is a block stone with the grain diameter of 7.5 cm-15 cm, and the void ratio filled by the stone material I is not more than 30%; the inverted filter 6 laid on the surface of the gravel layer 9 by the lead wire gabions I deviates from the direction of the gravel layer 9.
The ecological alloy grid 32 comprises a plurality of three-dimensional grid groups, the three-dimensional grid groups are formed by ultrasonically welding a plurality of three-dimensional grids, and the three-dimensional grid groups are connected by connecting pieces 33; the ecological alloy grid 32 is made of high-density polyethylene, the yield strength of the ecological alloy grid 32 is not less than 24MPa, and the oxidation induction time is not less than 200 min; the ecological alloy grid 32 is provided with drain holes; the height of the ecological alloy grid 32 is 27 cm; the ecological alloy grids 32 are laid on the surface of the dam protection layer 2 at intervals of 50cm, and the inverted filter layer 6 is away from the dam protection layer 2; the ecological alloy grid 32 is filled with the vegetation growing filler 31 and the vegetation growing filler 31 has a thickness higher than the height of the ecological alloy grid 32 by 7 cm.
The vegetation growth filler 31 is vegetation soil.
The reinforcing feet 4 are built by a lead wire gabion II, and the lead wire gabion II is 1.3m long, 1.3m wide and 1.3m wide; the lead wire gabion II comprises a net cage II and a stone II, wherein the stone II is filled in the net cage II, the net cage II is made of steel wires plated with Golgin preservative treatment and the diameter of the steel wires is 2.7mm, the stone II is a block stone with the grain size not smaller than 15cm, and the void ratio filled by the stone II is not larger than 30%.
The limiting component 51 comprises a cylindrical cone 513, a clamping arm 512 and an annular hole 511, wherein the clamping arm 512 and the annular hole 511 are oppositely arranged on two sides of the cylindrical cone 513; a through hole 514 is formed inside the cylindrical cone 513, and the through hole 514 comprises: an upper port 515 and a lower port 516, the through hole 514 being wedge-shaped; the anchor rod 52 is matched with the through hole 514, and the limiting assembly 51 is connected with the anchor rod 52 through the through hole 514; one end of the clamping arm 512 is connected with the cylindrical cone 513; the limiting component 51 is connected with the lead wire gabion I through the annular hole 511 by a series lead wire; the anchor rod 52 is made of vinyl glass fiber reinforced plastic, and the diameter of the anchor rod 52 is 1.4cm, and the length of the anchor rod is 80 cm.
The emergent aquatic vegetation 7 is cattail; the landscape vegetation 8 is tall fescue.
Example 2: according to embodiment 1, the construction method of the urban inland river dyke ecological landscape protection system is completed according to the following construction steps:
firstly, removing sundries and a soft soil layer on an original earth dam 1, exposing a compact soil layer and rolling, building a reinforcing foot 4 at the bottom of a slope surface of the original earth dam 1 by using a lead wire gabion II of an embodiment 1, paving an 8cm gravel layer 9 on the surface of the original earth dam 1 for leveling, paving a short fiber needled non-woven fabric with the bursting strength of more than 5.5kN on the surface of the gravel layer 9 as a reverse filter layer 6, and paving a lead wire gabion I on the surface of the reverse filter layer 6 from the reinforcing foot 4 as a dam protection layer 2; paving short fiber needle-punched non-woven fabrics with bursting strength larger than 5.5kN on the surface of the dam protection layer 2 to serve as a reverse filter layer 6, marking the positions of anchor rods 52 according to the pre-distributed positions of the ecological alloy grids 32, arranging one anchor rod 52 for the grid distance of 2 ecological alloy grids 32 in the transverse direction and the longitudinal direction respectively, punching at the position where the anchor rods 52 are marked, and driving the anti-corrosion fixing anchor rods 5 into the original dam 1 according to the marked positions to ensure that the height of the anti-corrosion fixing anchor rods 5 protruding out of the dam protection layer 2 is equal to the height of the ecological alloy grids 32;
secondly, laying the ecological alloy grid 32 on the inverted filter layer 6 on the surface of the dam protection layer 2, connecting a lead wire in series with a lead wire gabion I and a limiting component 51 of the dam protection layer in series through a ring piece 511, clamping the ecological alloy grid 32 by using a clamping arm 512, and fixing the ecological alloy grid 32 by using an anti-corrosion fixing anchor rod;
thirdly, filling the ecological alloy grids 32 with vegetation soil and compacting, wherein the filling thickness of the vegetation soil is 7cm higher than the height of the ecological alloy grids 32;
fourthly, planting the cattail grass on the wading section of the ecological landscape layer 3, planting the cattail grass on the part above the water surface of the ecological landscape layer 3, and watering the cattail grass at proper time.
Aiming at the embodiment 2, the effect of the urban inland river dike ecological landscape protection system is verified, and the constructed river dike landscape is beautiful, firm and durable; in the using process, the repairing times are obviously less than those of the prior river levee, and the function of the river levee is not influenced in rainy season when the water level of the urban inland river is higher; under extreme weather such as stormy rain or torrential rain, the ecological landscape layer plays better cushioning effect, and the dykes and dams protective layer has the infiltration effect, has improved the ability of going flood of river bank.
The invention is not limited to the above embodiments, and one or a combination of several embodiments may also achieve the object of the invention.
Claims (10)
1. The utility model provides an urban inland river dyke ecological landscape protection system which characterized in that includes: the ecological landscape structure comprises an original earth dam (1), a dam protection layer (2), an ecological landscape layer (3), reinforcing feet (4), a plurality of anticorrosion fixing anchor rods (5), emergent aquatic vegetation (7) and landscape vegetation (8);
the slope of the water-facing side slope surface of the original earth dam (1) is 30-35 degrees, the reinforcing feet (4) are arranged at the water-facing side slope bottom of the original earth dam (1), and the reinforcing feet (4) partially extend to the bottom of a riverbed; the dam protection layer (2) is abutted against one side of the original earth dam (1) departing from the earth surface; the ecological landscape layer (3) is abutted against one side, away from the original earth dam (1), of the dam protection layer (2), the ecological landscape layer (3) comprises a plurality of ecological alloy grids (32) and vegetation growth fillers (31), and the vegetation growth fillers (31) are filled in the ecological alloy grids (32); one side of the reinforcing foot (4) extending out of the bottom of the riverbed is abutted against the original earth dam (1), the dam protection layer (2) and the ecological landscape layer (3); the emergent aquatic vegetation (7) is arranged at the wading section of the ecological landscape layer (3), and the landscape vegetation (8) is arranged at the part above the water surface of the ecological landscape layer (3);
the corrosion-resistant fixing anchor rods (5) are distributed in the dam body at intervals and are sequentially connected with the ecological landscape layer (3), the dam protection layer (2) and the original earth dam (1) in series, and the ecological alloy grid (32) is fixed through the corrosion-resistant fixing anchor rods (5); the anti-corrosion fixed anchor rod (5) comprises a limiting assembly (51) and an anchor rod (52), one end of the anchor rod (52) is connected with the limiting assembly (51), one end, deviating from the limiting assembly (51), of the anchor rod (52) penetrates through the dam protection layer (2) and extends into the original earth dam (1), and the transverse and longitudinal distribution intervals of the anti-corrosion fixed anchor rod (5) are 2-3 grid distances of the ecological alloy grids (32).
2. The urban inland river bank ecological landscape protection system according to claim 1, wherein: the tamping density of the top surface and the surface of the slope of the original earth dam (1) is more than 93%, the top surface and the slope of the original earth dam (1) are provided with gravel layers (9), and the thickness of the gravel layers (9) is 5 cm-10 cm.
3. The urban inland river bank ecological landscape protection system according to claim 2, wherein: and a reverse filter layer (6) is laid between the gravel layer (9) and the dam protection layer (2) and between the dam protection layer (2) and the ecological landscape layer (3), and the reverse filter layer (6) is a short fiber or long fiber needle-punched non-woven fabric layer with the bursting strength of more than 5.5 kN.
4. The urban inland river embankment ecological landscape protection system according to claim 3, wherein: the dam protection layer (2) is formed by paving a plurality of lead wire gabions I; the length of the lead wire gabion I is 0.3-0.5 m, the width of the lead wire gabion I is 0.3-0.5 m, and the height of the lead wire gabion I is 0.3-0.5 m; the lead wire gabion I comprises a net cage I and a stone I, wherein the stone I is filled in the net cage I; the net cage I is made of steel wires plated with Golgin anti-corrosion treatment and with the diameter of not less than 2.2 mm; the stone I is pebbles, flaked stones or blockstones with the grain size of 7.5 cm-15 cm, and the void ratio filled by the stone I is not more than 30%; a plurality of the lead wire gabion I is laid on the surface of the gravel layer (9), and the reversed filter layer (6) deviates from the direction of the gravel layer (9), and is a plurality of the laying layer number of the lead wire gabion I is one layer.
5. The urban inland river bank ecological landscape protection system according to claim 4, wherein: the ecological alloy grid (32) comprises a plurality of three-dimensional grid groups, the three-dimensional grid groups are connected through connecting pieces (33), and the three-dimensional grid groups are formed by welding a plurality of three-dimensional grids through ultrasonic waves; the ecological alloy grid (32) is made of a polymer alloy composite material, the yield strength of the ecological alloy grid (32) is not less than 24MPa, and the oxidation induction time is not less than 200 min; the ecological alloy grid (32) is provided with drain holes; the height of the ecological alloy grid (32) is not less than 25 cm; paving the ecological alloy grids (32) at intervals of 30-80 cm in the direction of the inverted filter layer (6) on the surface of the dam protection layer (2) deviating from the dam protection layer (2); the ecological alloy grid (32) is filled with the vegetation growth filler (31), and the thickness of the vegetation growth filler (31) is 5-8 cm higher than the height of the ecological alloy grid (32).
6. The urban inland river bank ecological landscape protection system according to claim 5, wherein: the vegetation growth filler (31) is vegetation soil or mixed filler, the mixed filler is formed by mixing the vegetation soil and gravels, the volume fraction of the vegetation soil in the mixed filler is 30-70%, and the volume fraction of the gravels is 30-70%.
7. The urban inland river bank ecological landscape protection system according to claim 6, wherein: the reinforcing feet (4) are built by lead wire gabions II, and the lead wire gabions II are not less than 1m long, not less than 1m wide and not less than 1m high; the lead wire gabion II comprises a net cage II and a stone II, and the stone II is filled in the net cage II; the net cage II is made of steel wires plated with Golgin anti-corrosion treatment and with the diameter of not less than 2.5mm, the stone material II is pebbles, flaked stones or blockstones with the grain size of not less than 15cm, and the void ratio filled by the stone material II is not more than 30%.
8. The urban inland river bank ecological landscape protection system according to claim 7, wherein: the limiting assembly (51) comprises a cylindrical cone body (513), a clamping arm (512) and an annular hole (511), wherein the clamping arm (512) and the annular hole (511) are oppositely arranged on two sides of the cylindrical cone body (513); a through hole (514) is arranged inside the cylindrical cone body (513), and the through hole (514) comprises: an upper port (515) and a lower port (516), the through-hole (514) being wedge-shaped; the anchor rod (52) is matched with the through hole (514), and the limiting assembly (51) is connected with the anchor rod (52) through the through hole (514); one end of the clamping arm (512) is connected with the cylindrical cone body (513); the limiting component (51) is connected with the lead wire gabion I through the annular hole (511) by a series lead wire; the anchor rod (52) is made of vinyl glass fiber reinforced plastics, and the diameter of the anchor rod (52) is 1.4cm, and the length of the anchor rod is not less than 80 cm.
9. The urban inland river bank ecological landscape protection system according to claim 8, wherein: the emergent aquatic vegetation (7) is one or more of reed, cattail, water chestnut, lotus, cress, wild rice stem, lotus and cattail; the plant landscape vegetation (8) is one or more of festuca arundinacea, paradise, bluegrass, manila grass, ryegrass, equisetum, bermuda grass and green.
10. A construction method of an urban inland river dyke ecological landscape protection system is characterized by comprising the following construction steps:
firstly, removing sundries and soft soil layers on the top surface of a slope and the surface of a slope surface of an original earth dam (1), exposing and rolling a compact soil layer, building a reinforcing foot (4) at the bottom of a water-facing side slope of the original earth dam (1) by using a lead wire stone cage II, paving a 5-10 cm sand gravel layer (9) on the surface of the original earth dam (1) for leveling, paving a reversed filter layer (6) on the surface of the sand gravel layer (9), and paving a lead wire stone cage I on the surface of the reversed filter layer 6 from the reinforcing foot (4) to serve as a dam protection layer (2); paving a reverse filter layer 6 on the surface of the dam protection layer (2), marking the position of an anchor rod (52) according to the pre-distribution position of the ecological alloy grid (32), arranging one anchor rod (52) according to the grid distance of 2-3 ecological alloy grids (32) which are transversely and longitudinally distributed, punching at the position of the marked anchor rod (52) until the punching depth reaches the original earth dam (1), and then driving the anti-corrosion fixing anchor rod (5) into the dam protection layer (2) according to the marking position to ensure that the height of the anti-corrosion fixing anchor rod (5) protruding out of the dam protection layer (2) is equal to the height of the ecological alloy grid (32);
secondly, laying the ecological alloy grid (32) on a reverse filter layer (6) on the surface of the dam protection layer (2), passing a series lead wire through a ring piece (511) to connect a lead wire gabion I and a limiting component (51) of the dam protection layer in series, and fixing the ecological alloy grid (32) by using an anti-corrosion fixing anchor rod (5);
filling and compacting the ecological alloy grid (32) with vegetation growth filler (31), wherein the filling thickness of the vegetation growth filler (31) is 5-8 cm higher than the height of the ecological alloy grid (32);
fourthly, emergent aquatic vegetation (7) is planted on the wading section of the ecological landscape layer (3), landscape vegetation (8) is planted on the part above the water surface of the ecological landscape layer (3), and the landscape vegetation (8) is watered at proper time.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116356763A (en) * | 2023-01-04 | 2023-06-30 | 泗洪县水利工程建设管理中心 | Dam reinforcing structure and reinforcing method for flood-stagnation area |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116356763A (en) * | 2023-01-04 | 2023-06-30 | 泗洪县水利工程建设管理中心 | Dam reinforcing structure and reinforcing method for flood-stagnation area |
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