CN116397477A - Stepped permeable decompression porous light embankment structure and construction method - Google Patents
Stepped permeable decompression porous light embankment structure and construction method Download PDFInfo
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- 230000006837 decompression Effects 0.000 title claims abstract description 14
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/006—Foundations for pavings made of prefabricated single units
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Road Paving Structures (AREA)
Abstract
The invention discloses a stepped permeable, decompression and porous lightweight embankment structure and a construction method, and relates to the technical field of road construction, wherein the stepped permeable, decompression and porous lightweight embankment structure comprises a foam lightweight soil layer, an asphalt waterproof layer, a permeable structure layer and a substrate which are sequentially arranged below a pavement structure, the permeable structure layer is stepped, and a waste tire frame is arranged on the side slope side of the permeable structure layer; the permeable structure layer comprises a plurality of permeable light porous structure layers which are transversely spliced in turn, and the permeability coefficient of the permeable light porous structure layer is gradually decreased from one side of the incoming water of the road to the other side; a plurality of junked tires are distributed in the substrate, and one end of the steel pipe pile is buried in the junked tire cavity and is vertically arranged; the waste tires are internally filled with compact sand stones, and the gravel concrete layers are filled between the adjacent waste tires and between the steel pipe piles. The invention adopts the step filling, and can reduce excessive scouring of the road base caused by overlarge water flow velocity when water comes from one side of the road; the water drainage of the embankment can be accelerated by cooperating with the centralized drainage channel when water comes from one side of the road.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to a stepped permeable, decompression and porous light embankment structure and a construction method.
Background
In order to meet the traffic safety requirements of lateral drainage and road surface water diffusion prevention, the water permeable roadbed is widely applied. The roadbed with larger water permeability is mostly used as the common permeable roadbed, which is feasible for mountain roads, and is convenient to obtain materials, economical and applicable. However, the method has great difficulty in plain areas and has high material transportation cost.
At present, different types of permeable light foundations are proposed in the prior art, such as: CN208949664U discloses a lightweight permeable road structure which can rapidly discharge rainfall into the underlying ditch through the cooperation of a cement gravel permeable road surface structure, a lightweight foam concrete roadbed, a gravel permeable stratosphere and a drainage blind ditch. However, the technical scheme can only drain accumulated water on the surface of the road, can not realize the permeability of the road when water comes sideways, and is not suitable for highway construction in areas such as a driving flood storage area, a river along and the like. CN104727341B discloses a unidirectional water permeable river-based retaining wall, the wall surface of which is penetrated with a water discharge hole, and a unidirectional water permeable material layer is arranged on the wall back. However, the roadbed retaining wall has high requirements on the bearing capacity of the foundation, large settlement deformation after construction, the flood discharge flow of the water discharge hole cannot meet the use requirements, and the cleaning and maintenance cost of the water discharge hole in the later period is higher. CN114016351B discloses a quick infiltration road bed road surface of rainwater, and this structure can be with the rainwater of infiltration to the mountain internal portion through drainage pipe network discharge to can effectually block the rainwater on surface of surface course and directly discharge to the mountain below, but this type structure is applicable to the drainage surface water, and is not showing to the side water effect.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a stepped permeable decompression porous light embankment structure and a construction method, which adopt stepped filling to reduce excessive scouring to a road foundation caused by overlarge flow velocity of water when water comes from one side of the road; when water comes from one side of the road, the water drainage of the embankment can be accelerated by cooperating with the centralized drainage channel, so that the damages of water diffusion road surface, roadbed water destruction and the like caused by poor permeability of the embankment, unsmooth water drainage and the like are avoided; the permeable structure layer is assembled by permeable porous lightweight concrete prefabricated parts, so that the permeable structure layer has good integrity, can reduce foundation additional stress and post-construction settlement, and can improve the safety and economy of a road.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, an embodiment of the invention provides a stepped permeable, decompression and porous lightweight embankment structure, which comprises a foam lightweight soil layer, an asphalt waterproof layer, a permeable structure layer and a substrate, wherein the foam lightweight soil layer, the asphalt waterproof layer, the permeable structure layer and the substrate are sequentially arranged below a pavement structure, the permeable structure layer is stepped, and waste tire frames are arranged on the side slope side of the permeable structure layer; the permeable structure layer comprises a plurality of permeable light porous structure layers which are transversely spliced in turn, and the permeability coefficient of the permeable light porous structure layer is gradually decreased from one side of the incoming water of the road to the other side;
a plurality of junked tires are uniformly distributed in the substrate at intervals, and one end of the steel pipe pile is buried in the junked tire cavity and is vertically arranged; the inside of the junked tires is filled with compact sand stones, and gravel concrete layers are filled between adjacent junked tires and between the steel pipe piles.
As a further implementation mode, the permeable light porous structure layer positioned at the edge is provided with a stepped slope side; the adjacent water-permeable light porous structure layers are in plug-in fit.
As a further implementation manner, the contact surface of the adjacent water-permeable light porous structure layers is a concave-convex surface.
As a further implementation mode, the water permeable structure layer is internally provided with a plurality of transverse drainage hoses with set gradients, and the transverse drainage hoses are vertically arranged.
As a further implementation, the bottom end of the lateral drainage hose is connected with a vertical drainage hose, and the vertical drainage hose is used for converging water flow in the lateral drainage hose into the water collecting ditch.
As a further implementation manner, the junked tire frame is formed by sequentially butting a plurality of junked tires to form a grid structure, and adjacent junked tires in the junked tire frame are connected through connecting pieces.
As a further implementation mode, the connecting piece is a prestress steel strand, and two ends of the prestress steel strand are respectively anchored with the outer edge of the junked tire through anchor bolts.
As a further implementation mode, the connecting piece is a steel wire rope and an anchor bolt, and the steel wire rope is bound between adjacent junked tires and fixed by the anchor bolt.
In a second aspect, an embodiment of the present invention further provides a construction method of a stepped permeable, pressure-reducing and porous lightweight embankment structure, including:
placing junked tires according to preset points, and reserving setting positions of the steel pipe piles; driving a steel pipe pile along the vertical direction;
paving a crushed stone concrete layer;
overlapping the water-permeable light porous structure layers in a layered masonry mode, and pouring water-permeable mortar between adjacent water-permeable light porous structure layers for filling;
after the water permeable structure layer is paved and built, an asphalt waterproof layer with set thickness is sprayed above the water permeable structure layer;
after the asphalt waterproof layer is hardened, a foam light soil layer is highly poured according to the requirement;
and (3) paving a base layer and a surface layer, constructing a broken stone side slope, paving a connected waste tire frame, filling sand and stones in a waste tire cavity, repairing the side slope and completing the construction of the embankment structure.
As a further implementation mode, gaps are reserved between adjacent steel pipe piles, and the upper ends of the steel pipe piles are higher than the tops of the waste tires; the paving height of the crushed stone concrete layer is higher than the upper end of the steel pipe pile.
The beneficial effects of the invention are as follows:
(1) The whole permeable structure layer is formed by splicing a plurality of permeable light porous structure layers along the transverse direction, the permeability coefficient is gradually decreased, and the permeable structure layer is filled by adopting the stepped slope protection, so that the scouring of lateral water to the roadbed can be effectively reduced, and the quality and the stability of the embankment are ensured; the foam light soil layer is positioned above the asphalt waterproof layer and mainly plays a role in bearing and damping; the asphalt waterproof layer is paved above the water permeable structure layer to prevent ground water from reversely penetrating the road surface; through road surface structure, foam lightweight soil layer, pitch waterproof layer, permeable structure layer and the basement that from last to setting gradually, can increase lightweight embankment structure's wholeness, each layer cooperation can reduce foundation additional stress and post-construction subsidence effectively, reduces diseases such as road surface differential settlement, fluctuation, crack.
(2) The drainage system is arranged in the water permeable structure layer, the water permeable structure layer can better cooperate with the centralized drainage system to accelerate the drainage of the embankment, and the groundwater which influences the strength and stability of the roadbed can be timely discharged out of the road range, so that the roadbed always keeps a dry, firm and stable state, and the service life of the embankment is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a structure in accordance with one or more embodiments of the invention;
FIG. 2 is a top view of a scrap tire frame according to one or more embodiments of the invention;
FIG. 3 is a schematic view of a lateral drain hose arrangement according to one or more embodiments of the present invention;
FIG. 4 is a schematic representation of a foamed lightweight soil layer layered masonry according to one or more embodiments of the present invention.
1, a pavement structure; 2. a foamed light soil layer; 3. an asphalt waterproof layer; 4. a water-permeable light porous structure layer I; 5. a water-permeable light porous structure layer II; 6. a water permeable lightweight porous structural layer III; 7. waste tires; 8. a lateral drain hose; 9. gravel side slope; 10. a steel pipe pile; 11. a water collecting ditch; 12. a crushed stone concrete layer; 13. a substrate; 14. prestress steel strand; 15. a gasket; 16. anchor bolts 17, junked tire frames.
Detailed Description
Embodiment one:
in an exemplary embodiment of the present invention, a stepped water permeable, pressure reducing, porous, lightweight embankment structure is provided, as shown in fig. 1.
In order to solve the problem of high transportation cost of the filled-stone roadbed in a plain area, although some permeable light roadbed types exist at present, the lateral drainage effect of most permeable light roadbed is not obvious, and the problems of poor permeability of embankment and the like exist.
Based on the above, the embodiment provides a stepped permeable and decompression porous lightweight embankment structure, and the permeable and decompression embankment is filled in a stepped manner, so that excessive scouring on a road base caused by overlarge flow velocity of water can be reduced when water comes on one side of the road; and set up the horizontal drainage hose of multilayer in the structure layer that permeates water, can be when the water comes in road one side, concentrate the drainage channel in coordination and accelerate embankment drainage to avoid danger such as water diffuse road surface, road bed water destroy that arouses because of embankment permeability is poor, drainage is unsmooth etc..
The stepped water-permeable pressure-reducing porous lightweight embankment structure is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the stepped permeable decompression porous lightweight embankment structure comprises a substrate 13, a water collecting ditch 11, a permeable structure layer, a drainage hose, an asphalt waterproof layer 3, a foam lightweight soil layer 2 and a pavement structure 1, wherein the pavement structure 1, the foam lightweight soil layer 2, the asphalt waterproof layer 3, the permeable structure layer and the substrate 13 are sequentially arranged from top to bottom, through the arrangement sequence, the integrity of the lightweight embankment structure can be improved, the structural stability of each layer can be improved through cooperation, and the foundation additional stress and post-construction settlement are reduced.
The top of the foam lightweight soil layer 2 is embedded into the pavement structure 1 to a certain height so as to increase the combination performance with the pavement structure 1; the foam lightweight soil layer 2 is positioned above the asphalt waterproof layer 3 and mainly plays a role in bearing and damping. The asphalt waterproof layer 3 is paved above the water permeable structure layer to prevent ground water from reversely penetrating on the road surface.
The whole permeable structure layer is in a step shape, so that excessive scouring of the road base caused by overlarge flow velocity of water flow can be reduced when water comes from one side of the road; the water permeable structure layer is formed by transversely splicing a plurality of water permeable light porous structure layers, and the water permeable light porous structure layers are all made of water permeable foam light soil precast blocks, so that the structural integrity can be improved, and the foundation additional stress and post-construction settlement can be reduced; meanwhile, the adoption of sand and stone fillers with large particle size can be avoided, and the exploitation of mountain bodies and mineral resources is reduced.
The water permeable foam lightweight soil layer has excellent water permeability, and the water permeability is adjustable, so that the water drainage of the embankment can be well accelerated by the centralized drainage system, and the groundwater affecting the strength and stability of the roadbed can be timely discharged out of the road range, so that the roadbed is always kept in a dry, solid and stable state, and the service life of the embankment is prolonged.
The water-permeable foam lightweight soil comprises the following components: cement, foam, fine sand, fiber, resin; the foam lightweight soil layer 2 (common foam lightweight soil) comprises the following components: cement, foam, fly ash and fine sand. The density, strength, water permeability and the like of the two types of foam lightweight soil can be adjusted by adjusting the mixing amount of each component.
The density ranges of the water permeable foamed light soil and the common foamed light soil are 500-1200 kg/m respectively 3 And 400 to 1300kg/m 3 . In this example, the preferred densities of the two foamed lightweight soils are provided, 800-900 kg/m 3 The permeable foam light soil has higher strength and good air permeability and water permeability, and can better infiltrate water in the embankment underground, thereby improving the bearing capacity of the roadbed. 700-800 kg/m 3 The common foam light soil has lower production cost on the premise of guaranteeing the bearing strength of the roadbed. Meanwhile, the light weight of the foam light soil can effectively reduce the dead weight of the whole structure, and is beneficial to reducing the settlement of the roadbed whole structure.
Each permeable light porous structure layer is sequentially arranged from one side of the incoming water to the other side of the incoming water, and the permeability coefficient is sequentially decreased, so that excessive flushing of the permeable layers due to overlarge flow velocity of side water can be avoided. Meanwhile, in order to improve the overall stability of the water permeable structure layers, adjacent water permeable light porous structure layers are inserted, as shown in fig. 4, the matching surfaces of the adjacent water permeable light porous structure layers are concave-convex surfaces, namely, are formed by protrusions and grooves which are distributed at intervals, so that the adjacent water permeable light porous structure layers are tightly combined.
The number of the water permeable light porous structure layers can be set according to practical requirements, and in this embodiment, three water permeable light porous structure layers are taken as an example for detailed description:
as shown in fig. 1, the water permeable light porous structure layer i 4, the water permeable light porous structure layer ii 5 and the water permeable light porous structure layer iii 6 are sequentially arranged along the transverse direction, and the side slope sides of the water permeable light porous structure layer i 4 and the water permeable light porous structure layer iii 6 at the edge are arranged in a step shape, so that the water permeable structure layers form a step shape; the outer sides of the water permeable light porous structure layer I4 and the water permeable light porous structure layer III 6 are provided with gravel slopes 9, and the gravel slopes 9 are of ladder-shaped structures suitable for the water permeable light porous structure layer I4 and the water permeable light porous structure layer III 6. The outer side of the gravel slope 9 is paved with a junked tire frame 17, and as shown in fig. 2, the junked tire frame 17 is formed by sequentially butting a plurality of junked tires 7 to form a grid structure. Namely, the adjacent junked tires 7 are connected by the connecting piece, thereby playing a role in connecting and fixing the embankment structure. The inside of the junked tire 7 is filled with sand or gravel to enhance its own weight and stability.
The connecting pieces are arranged between the adjacent waste tires 7, so that a stable frame is formed inside the waste tires, the restraint and support functions of the road embankment structure can be realized, and the integrity and stability of the road embankment structure are ensured. In the embodiment, the connecting piece comprises a prestress steel strand 14, a gasket 15 and an anchoring bolt 16, wherein two ends of the prestress steel strand 14 are respectively anchored on the gasket 15 at the outer edge of the outermost tire by the aid of the anchoring bolt 16; the tire frame of the embankment structure can prevent side water flow from scouring the roadbed structure, and meanwhile, the stability of the roadbed structure can be enhanced.
It will be appreciated that in other embodiments the connector may also be a corrosion-resistant galvanized steel wire rope, the wire rope bundles being tied between adjacent scrap tires 7.
A drainage system is arranged in the water permeable structure layer to realize concentrated drainage; the drainage system comprises a transverse drainage hose 8 and a vertical drainage hose, and as shown in fig. 1, a plurality of transverse drainage hoses 8 are arranged along the height direction of the water permeable structure layer; the transverse drainage hose 8 is provided with a drainage gradient of 1% -4% along the original ground gradient direction and is transversely arranged in the embankment along the road base.
As shown in fig. 3, a certain interval is arranged between adjacent transverse drainage hoses 8, and the length direction distribution of the transverse drainage hoses 8 is adapted to a ladder structure; each end face can be provided with at least 3 layers, and each 8-10 m is provided with a section, so that smooth water flow is ensured.
The water outlet ends of the transverse water drainage hoses 8 are connected to the same vertical water drainage hose, the vertical water drainage hoses are arranged in the water permeable light porous structure layer on the water outlet side, and taking three water permeable light porous structure layers as an example, the vertical water drainage hoses are arranged in the water permeable light porous structure layer III 6. The vertical drainage hose is connected with the water collecting ditch 11, and the water collecting ditch 11 is buried in the slope foot of the downstream surface of the embankment; when the water level on one side of the embankment is higher, water can be led to the longitudinal water collecting ditch 11 on the other side, so that the underground water level is effectively reduced, and the influence of the lateral water flowing through the road surface on traffic safety is avoided.
The substrate 13 comprises a gravel concrete layer 12, junked tires 7 and steel pipe piles 10, and the junked tires 7 are uniformly distributed in the gravel concrete layer 12 at intervals; the bottom of every junked tire 7 all connects at least one steel-pipe pile 10, and steel-pipe pile 10 sets up along vertical, and steel-pipe pile 10 top extends to junked tire 7's intracavity, and interval between two adjacent steel-pipe piles 10 is moderate for embankment structure can not appear stress concentration and support not enough problem because of the too intensive that steel-pipe pile 10 set up, and has sufficient space to be used for filling or pour bearing structure, and then has guaranteed that this permeable embankment has better stability.
The crushed stone concrete layer 12 is filled between the adjacent junked tires 7 and the adjacent steel pipe piles 10, the bottom ends of the steel pipe piles 10 extend out of the bottom surfaces of the crushed stone concrete layer 12 for a certain length, and the crushed stone concrete layer 12 plays a role in supporting and protecting the steel pipe piles 10.
In the embodiment, the water flow is discharged from one side of a road to the water collecting ditch 11 at the side deviating from the water supply through the plurality of water-permeable light porous structure layers and the water discharge hose, so that the water flow permeability of the embankment structure is improved; the adoption of the plurality of spliced water-permeable light porous structure layers with gradually reduced permeability can effectively relieve the scouring of lateral water to the embankment, simultaneously relieve the additional stress of the foundation and improve the stability and durability of the embankment structure.
The permeable structure layer of this embodiment can be when groundwater level rises or the side direction comes water, in time permeate the discharge with rivers to avoid the damage that the hydrostatic pressure that causes because of the excessive volume of upstream water and move water pressure to the embankment and the rivers are erodeed, soaked, harm such as erosion repeatedly to the road base, greatly improved the life of road.
Embodiment two:
the embodiment provides a construction method of a stepped water permeable decompression porous light embankment structure, which is based on the porous light embankment structure in the first embodiment, and comprises the following steps:
step one: and cleaning and hardening the substrate. And (3) removing tree roots and slag on the surface of the foundation pit, and then performing hardening treatment to form a crust layer on the surface. The hardening treatment comprises the following specific steps: and adding the curing agent to the surface layer of the foundation pit, and stirring the soil of the foundation pit to enable the curing agent to be fully mixed with the soil and then to be coagulated and hardened.
Step two: and excavating a water collecting ditch 11 at the toe of the embankment, which is away from the incoming water, so as to drain the water in the roadbed.
Step three: and placing junked tires 7 according to preset points, and reserving setting positions of the steel pipe piles 10. The steel pipe piles 10 are respectively driven in a static pressure pile sinking mode along the vertical direction, enough gaps are reserved between two adjacent steel pipe piles 10, and the upper ends of the steel pipe piles 10 are slightly higher than the tops of the junked tires 7.
Step four: the gravel concrete layer 12 is paved with a height slightly higher than the upper end of the steel pipe pile 10.
Step five: the water-permeable light porous structure layer is overlapped stepwise according to the designed thickness and width in a layered masonry mode. And water permeable mortar can be poured between adjacent water permeable light porous structure layers for filling.
Step six: in the process of building the water-permeable light porous structure layer, the drainage hose is paved according to the reserved point positions.
Step seven: after the water permeable structure layer is paved and built, an asphalt waterproof layer 3 with the thickness of 3mm-4mm is sprayed above the water permeable structure layer.
Step eight: and after the asphalt waterproof layer 3 is hardened, the common foam light soil layer 2 is highly poured according to the requirement.
Step nine: and (3) paving a base layer and a surface layer, constructing a broken stone side slope, paving a connected waste tire 7 frame, filling sand and stones in the cavity of the waste tire 7, repairing the side slope and completing the construction of the embankment structure.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. The stepped permeable decompression porous light embankment structure is characterized by comprising a foam light soil layer, an asphalt waterproof layer, a permeable structure layer and a substrate which are sequentially arranged below a pavement structure, wherein the permeable structure layer is stepped, and a waste tire frame is arranged on the side of a slope of the permeable structure layer; the permeable structure layer comprises a plurality of permeable light porous structure layers which are transversely spliced in turn, and the permeability coefficient of the permeable light porous structure layer is gradually decreased from one side of the incoming water of the road to the other side;
a plurality of junked tires are uniformly distributed in the substrate at intervals, and one end of the steel pipe pile is buried in the junked tire cavity and is vertically arranged; the inside of the junked tires is filled with compact sand stones, and gravel concrete layers are filled between adjacent junked tires and between the steel pipe piles.
2. The stepped water permeable and pressure reducing porous lightweight embankment structure according to claim 1, wherein the side slope side of the lightweight porous structure layer positioned at the edge is stepped; the adjacent water-permeable light porous structure layers are in plug-in fit.
3. The stepped water permeable reduced pressure porous lightweight embankment structure according to claim 2, wherein the contact surface of the adjacent water permeable lightweight porous structure layers is a concave-convex surface.
4. The stepped water permeable and pressure reducing porous lightweight embankment structure according to claim 1, wherein a plurality of transverse drainage hoses with set gradient are arranged in the water permeable structure layer.
5. The stepped water permeable and pressure reducing porous lightweight embankment structure according to claim 4, wherein the lower end of the lateral drainage hose is connected with a vertical drainage hose, and the vertical drainage hose is used for collecting water in the lateral drainage hose into the water collection ditch.
6. The stepped water permeable, pressure reducing and porous lightweight embankment structure according to claim 1, wherein the junked tire frame is formed by sequentially butting a plurality of junked tires to form a grid structure, and adjacent junked tires in the junked tire frame are connected through connecting pieces.
7. The stepped water permeable decompression porous lightweight embankment structure according to claim 6, wherein the connecting piece is a prestressed steel strand, and two ends of the prestressed steel strand are respectively anchored with the outer edges of the junked tires through anchor bolts.
8. The stepped water permeable and pressure reducing porous light embankment structure according to claim 6, wherein the connecting piece is a steel wire rope and an anchor bolt, and the steel wire rope is tied between adjacent junked tires and fixed by the anchor bolt.
9. The construction method of the stepped water permeable decompression porous lightweight embankment structure according to any one of claims 1 to 8, which is characterized by comprising the following steps:
placing junked tires according to preset points, and reserving setting positions of the steel pipe piles; driving a steel pipe pile along the vertical direction;
paving a crushed stone concrete layer;
overlapping the water-permeable light porous structure layers in a layered masonry mode, and pouring water-permeable mortar between adjacent water-permeable light porous structure layers for filling;
after the water permeable structure layer is paved and built, an asphalt waterproof layer with set thickness is sprayed above the water permeable structure layer;
after the asphalt waterproof layer is hardened, a foam light soil layer is highly poured according to the requirement;
and (3) paving a base layer and a surface layer, constructing a broken stone side slope, paving a connected waste tire frame, filling sand and stones in a waste tire cavity, repairing the side slope and completing the construction of the embankment structure.
10. The construction method of the stepped water permeable, pressure reducing and porous lightweight embankment structure according to claim 9, wherein a gap is reserved between adjacent steel pipe piles, and the upper ends of the steel pipe piles are higher than the tops of the junked tires; the paving height of the crushed stone concrete layer is higher than the upper end of the steel pipe pile.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310589646.7A CN116397477A (en) | 2023-05-22 | 2023-05-22 | Stepped permeable decompression porous light embankment structure and construction method |
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| CN202310589646.7A CN116397477A (en) | 2023-05-22 | 2023-05-22 | Stepped permeable decompression porous light embankment structure and construction method |
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