CN220952747U - Road base structure for racing - Google Patents
Road base structure for racing Download PDFInfo
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- CN220952747U CN220952747U CN202322259828.6U CN202322259828U CN220952747U CN 220952747 U CN220952747 U CN 220952747U CN 202322259828 U CN202322259828 U CN 202322259828U CN 220952747 U CN220952747 U CN 220952747U
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- 239000004567 concrete Substances 0.000 claims abstract description 50
- 239000002689 soil Substances 0.000 claims abstract description 47
- 239000006260 foam Substances 0.000 claims abstract description 38
- 239000010426 asphalt Substances 0.000 claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 14
- 230000008093 supporting effect Effects 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000011384 asphalt concrete Substances 0.000 claims description 12
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000013521 mastic Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000011381 foam concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a road foundation structure which comprises a roadbed upper part and a roadbed lower part, wherein the roadbed upper part sequentially comprises an asphalt mixing layer, a double-layer concrete layer, a double-layer gravel layer, a gravel cushion layer and a soil base layer from top to bottom, and the roadbed lower part sequentially comprises a cement layer, a foam lightweight soil layer, a gravel cushion layer and a pile foundation from top to bottom. The utility model has novel structural design, meets the requirement of the development of the lightweight roadbed structure of a large-scale track, adopts foam lightweight soil to replace common filling soil, can effectively reduce roadbed load and excessive settlement, improves roadbed construction quality, saves construction cost, has good foam lightweight soil fluidity, can adopt pipeline transportation, is easy to pour construction, can shorten construction period, adopts a novel roadbed structure to lighten roadbed load, reduces settlement and additional stress of a foundation, organically combines new material foam lightweight soil with a lower pile foundation into a whole, and improves the integral bearing capacity and anti-erosion capacity of the roadbed.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a road foundation structure.
Background
With the rapid development of town, the land in large and medium cities is very short and the land price is very expensive, and a large parking lot and a large track have to be built by selecting low-lying areas, and even fishponds and lakes are provided. In order to ensure the construction quality, the method is more indispensable to the road subgrade structure design except that geological exploration is firstly carried out. The good roadbed structure design not only can save construction cost, but also can shorten construction period and improve engineering quality. Therefore, in the construction of large parking lots and large track projects, the design of roadbed structures is very important.
The track roadbeds in the prior art mostly adopt common filling soil, lime soil, broken stone or graded broken stone, and generally adopt construction processes such as layered filling, paving, leveling, rolling, tamping and the like. The density of the lime soil, broken stone or graded broken stone is large, the self weight is large, the pile foundation pile at the lower part is required to be densely distributed, the length is longer, and the construction cost is greatly increased. Aiming at the existing defects, the road foundation structure capable of effectively reducing roadbed load and excessive settlement and saving construction cost is designed.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a road-racing base structure.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model discloses a road foundation structure which comprises a roadbed upper part and a roadbed lower part, wherein the roadbed upper part sequentially comprises an asphalt mixing layer, a double-layer concrete layer, a double-layer gravel layer, a gravel cushion layer and a soil base layer from top to bottom, an oil adhering layer is arranged between the double-layer concrete layer and the asphalt mixing layer, an emulsified asphalt layer is arranged between the bottom of the double-layer concrete layer and the double-layer gravel layer, the roadbed lower part sequentially comprises a cement layer, a foam lightweight soil layer, a gravel cushion layer and a pile foundation from top to bottom, and a supporting piece is arranged in the foam lightweight soil layer.
As a preferable technical scheme of the utility model, the roadbed comprises an asphalt mixing layer, a double-layer concrete layer, a double-layer gravel layer, a gravel cushion layer and a soil base layer from top to bottom in sequence, an oil adhering layer is arranged between the double-layer concrete layer and the asphalt mixing layer, an emulsified asphalt layer is arranged between the bottom of the double-layer concrete layer and the double-layer gravel layer, the roadbed comprises a cement layer, a foam lightweight soil layer, a gravel cushion layer and a pile foundation from top to bottom in sequence, and a supporting piece is arranged in the foam lightweight soil layer.
As a preferable technical scheme of the utility model, the asphalt mixing layer is an asphalt mastic macadam mixing layer, the double-layer concrete layer is middle-grain modified asphalt concrete and coarse-grain asphalt concrete, and an oil-binding layer is arranged between the middle-grain modified asphalt concrete and the coarse-grain asphalt concrete.
As a preferable technical scheme of the utility model, the double-layer gravel layer is a gravel upper base layer and a gravel lower base layer.
As a preferable technical scheme of the utility model, the pile foundation comprises a plurality of HPC pipe piles and a plurality of bidirectional concrete mixing piles, pile caps matched with the HPC pipe piles are arranged at the upper ends of the HPC pipe piles, and the pile caps are poured by C30 cement concrete.
As a preferable technical scheme of the utility model, the pile foundation comprises a plurality of CFG pipe piles and a plurality of bidirectional concrete mixing piles.
As a preferable technical scheme of the utility model, two layers of the gravel cushion layers are arranged above the pile foundation, the upper surfaces of the two layers of the gravel cushion layers are both provided with the civil grid, and the upper surface of the civil grid is paved with the first-stage concrete layer.
As a preferable technical scheme of the utility model, the supporting piece comprises two layers of steel wire meshes, a plurality of supporting rods and a plurality of supporting legs, and two supporting legs are arranged below one supporting rod.
As a preferable technical scheme of the utility model, the steel wire gauze is galvanized steel wire gauze, the steel wire gauze is arranged at the inner bottom and the top of the foam lightweight soil layer, the supporting rods are fixedly arranged between the steel wire gauze, the two ends of the supporting rods are fixedly provided with fixing sleeves, the supporting legs are fixedly arranged between the bottom of the steel wire gauze and the inner bottom of the foam lightweight soil layer, and the two ends of the supporting legs are fixedly provided with clamping sleeves.
As a preferable technical scheme of the utility model, two sides of the foam lightweight soil layer are filled with secondary concrete layers.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model has novel structural design, meets the development requirement of the lightweight roadbed structure of a large-scale track, adopts foam lightweight soil to replace common filling soil, can effectively reduce roadbed load and excessive settlement, improves roadbed construction quality, saves construction cost, has good foam lightweight soil fluidity, can adopt pipeline transportation, is easy to pour and construct, can shorten construction period, adopts a novel roadbed structure to lighten roadbed load, reduces settlement and additional stress of a foundation, organically combines new material foam lightweight soil and a lower pile foundation into a whole, improves the integral bearing capacity and anti-corrosion capacity of the roadbed, and adopts concrete layers around the foam lightweight soil to wrap and seal, protects the foam lightweight soil from being corroded and damaged by surrounding environment.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of the overall structure of the lower part of a roadbed;
FIG. 2 is a schematic view of a partial structure of a foamed lightweight soil layer;
FIG. 3 is a schematic view of a partial structure of an upper portion of a roadbed;
In the figure: 1. the lower part of the roadbed; 101. a tubular pile; 102. bidirectional concrete layer stirring piles; 103. a pile cap; 104. a gravel cushion layer; 105. a civil grid; 106. a first-stage concrete layer; 107. a foamed light soil layer; 1071. a steel wire mesh; 1072. a support rod; 1073. a fixed sleeve; 1074. support legs; 1075. a cutting sleeve; 108. a cement layer; 109. a secondary concrete layer; 2. the upper part of the roadbed; 201. a soil base layer; 202. a gravel pack; 203. a double layer stone layer; 204. an asphalt emulsion layer; 205. a double layer concrete layer; 206. and an asphalt mixing layer.
Detailed Description
As shown in fig. 1-3, the utility model provides a road race base structure, which comprises a roadbed upper part 2 and a roadbed lower part 1, wherein the roadbed upper part 2 sequentially comprises an asphalt mixing layer 206, a double-layer concrete layer 205, a double-layer gravel layer 203, a gravel pad 202 and a soil base layer 201 from top to bottom, a viscous oil layer is arranged between the double-layer concrete layer 205 and the asphalt mixing layer 206, an emulsified asphalt layer is arranged between the bottom of the double-layer concrete layer 205 and the double-layer gravel layer 203, the roadbed lower part 1 sequentially comprises a cement layer 108, a foam lightweight soil layer 107, a gravel pad 104 and a pile foundation from top to bottom, and a supporting piece is arranged in the foam lightweight soil layer 107.
Further, the asphalt mixture layer 206 is an asphalt mastic macadam mixture layer, the double-layer concrete layer 205 is a medium-grain modified asphalt concrete and a coarse-grain asphalt concrete, and an oil-binding layer is arranged between the medium-grain modified asphalt concrete and the coarse-grain asphalt concrete.
The double-layer gravel layer 203 is a gravel upper base layer and a gravel lower base layer, cement is filled in the gravel lower base layer, and the gravel is stabilized through the cement.
Pile foundation includes a plurality of HPC tubular piles 101 and a plurality of two-way concrete mixing stake 102, builds the bottom structure of road bed through HPC tubular pile 101 and two-way concrete mixing stake 102, and the upper end of a plurality of HPC tubular piles 101 is provided with pile cap 103 rather than the adaptation, and pile cap 103 adopts C30 cement concrete placement, and the pile cap 103 is filled with the rubble outward, is favorable to linking into an integral whole with road bed lower part 1, strengthens the overall effect, prevents that the road bed part from sinking.
The pile foundation comprises a plurality of CFG pipe piles 101 and a plurality of bidirectional concrete mixing piles 102, and the CFG pipe piles 101 can be used for replacing the HPC pipe piles 101, and can be selected according to actual needs.
Two layers of gravel cushions 104 are arranged above the pile foundation, the upper surfaces of the two layers of gravel cushions 104 are provided with a civil grid 105, the lower part 1 of the roadbed is connected into a whole through the two layers of gravel cushions 104 and the civil grid 105, the whole effect is enhanced, the roadbed is prevented from sinking partially, a first-stage concrete layer 106 is paved on the upper surface of the civil grid 105, and compaction by rolling leveling is carried out through a first-stage cement layer 108.
The support piece includes two-layer wire net 1071, a plurality of spinal branch pole 1072 and a plurality of supporting leg 1074, and the below of a branch pole 1072 is provided with two supporting legs 1074 for the bottom of branch pole 1072 can be supported by supporting leg 1074, improves holistic foam lightweight soil layer 107's stability.
The steel wire mesh 1071 is galvanized steel wire mesh, steel wire mesh 1071 sets up in the interior bottom and the top of foam lightweight soil layer 107, branch 1072 is fixed to be set up between steel wire mesh 1071, the both ends of branch 1072 are all fixed to be provided with fixed cover 1073, supporting leg 1074 is fixed to be set up between the bottom of steel wire mesh 1071 and the interior bottom of foam lightweight soil layer 107, the both ends of supporting leg 1074 are all fixed to be provided with cutting ferrule 1075, firm branch 1072 and steel wire mesh 1071's connection through fixed cover 1073, stabilize the position of supporting leg 1074 in foam lightweight soil layer 107 through cutting ferrule 1075, support steel wire mesh 1071 through supporting leg 1074 and branch 1072 for steel wire mesh 1071 can not be by the structural pressure deformation of foam lightweight soil layer 107 top.
Two sides of the foam lightweight soil layer 107 are filled with a secondary concrete layer 109, and the foam lightweight soil layer 107 is protected from corrosion and damage of the surrounding environment.
Specifically, the roadbed structure layer sequentially comprises an HPC pipe pile 101, a bidirectional concrete pile 102, a C30 cement pile cap 103, a gravel cushion layer 104, a geogrid, the gravel cushion layer 104, the geogrid, a first-stage concrete layer 106, a foam lightweight concrete layer 107, the geogrid, a second-stage concrete layer 109, a concrete base layer 201, a gravel cushion layer 202, a double-layer gravel layer 203, a double-layer concrete layer 205 and an asphalt mixing layer 206 from bottom to top, the type of pile foundation, the pile density and the length of the pile foundation are calculated and selected according to the land survey of the concrete foundation, the pile foundation can be filled with gravel except the HPC pipe pile 101 and the bidirectional concrete pile 102, the pile cap 103 adopts a foam lightweight concrete layer 107, the load of the whole roadbed is reduced, the quantity and the length of the HPC pipe pile 101 and the bidirectional concrete pile 102 are correspondingly reduced, the pile foundation engineering quantity and the material cost are saved, the two layers 104 and the geogrid are added between the foam lightweight concrete layer 107 and the pile foundation, the whole effect is favorably connected, the roadbed 1 is enhanced, the pile foundation is prevented from sinking, the foam lightweight concrete layer is prevented from being filled with a foam concrete layer at the periphery of the roadbed layer and the foam concrete layer, and the periphery of the road is filled with the foam concrete layer is filled with the foam lightweight concrete layer at the periphery of the cement pile layer 10, and the periphery of the road is filled with the foam concrete layer at the periphery of the road pavement layer 10, and the road pavement is filled with the conventional pavement layer;
According to the height of pouring foam lightweight soil, lay two-layer galvanized steel wire gauze at foam lightweight soil bottom, top suitable position, be provided with branch 1072 between steel wire gauze 1071 and support between the steel wire gauze 1071, the steel wire gauze 1071 of bottom and the bottom time setting supporting leg 1074 of foam lightweight soil layer 107 carry out further support to steel wire gauze 1071, play good supporting effect, prevent that foam lightweight soil layer 107 from being excessively serious by the multilayer structure of top indentation, influence the overall structure stability of road bed.
In summary, the roadbed structure of the present utility model is a roadbed structure for a track, which is a limitation of the practical scenario of the roadbed structure, and the present utility model is a track-based structure based on the prior art, and thus the disclosed structure and function of the track-based structure of the prior art are not fully described.
In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The utility model provides a road base structure, its characterized in that includes road bed upper portion (2) and road bed lower part (1), road bed upper portion (2) from top to bottom includes asphalt mixture layer (206), double-deck concrete layer (205), double-deck gravel layer (203), gravel bed (202) and soil base layer (201) in proper order, double-deck concrete layer (205) with be provided with the viscous oil layer between asphalt mixture layer (206), the bottom of double-deck concrete layer (205) with be provided with the emulsified asphalt layer between double-deck gravel layer (203), road bed lower part (1) from top to bottom includes cement layer (108), foam lightweight soil layer (107), gravel bed (104) and pile foundation in proper order, the inside of foam lightweight soil layer (107) is provided with support.
2. The racing road base structure according to claim 1, characterized in that the asphalt mixing layer (206) is an asphalt mastic macadam mixing layer, the double layer concrete layer (205) is a medium grain modified asphalt concrete and a coarse grain asphalt concrete, and an oil adhesion layer is arranged between the medium grain modified asphalt concrete and the coarse grain asphalt concrete.
3. A racing road foundation according to claim 1, characterized in that the double crushed stone layer (203) is a crushed stone upper base layer and a crushed stone lower base layer.
4. The racing road foundation structure as claimed in claim 1, characterized in that the pile foundation comprises a plurality of HPC pile piles (101) and a plurality of bidirectional concrete mixing piles (102), pile caps (103) matched with the HPC pile piles (101) are arranged at the upper ends of the HPC pile piles, and the pile caps (103) are poured by adopting C30 cement concrete.
5. The racetrack foundation structure of claim 4, wherein the pile foundation comprises several CFG piles (101) and several bi-directional concrete mixing piles (102).
6. The road race foundation structure according to claim 1, characterized in that two layers of said gravel cushion layers (104) are provided above said pile foundation, a civil grid (105) is provided on the upper surfaces of said gravel cushion layers (104), and a primary concrete layer (106) is laid on the upper surface of said civil grid (105).
7. A racing road foundation according to claim 1, characterized in that the support comprises two layers of steel wire mesh (1071), a number of struts (1072) and a number of support legs (1074), two of the support legs (1074) being provided under one of the struts (1072).
8. The racing road base structure as set forth in claim 7, characterized in that the steel wire mesh (1071) is galvanized steel wire mesh, the steel wire mesh (1071) is disposed at the inner bottom and the top of the foam lightweight soil layer (107), the supporting rods (1072) are fixedly disposed between the steel wire mesh (1071), fixing sleeves (1073) are fixedly disposed at two ends of the supporting rods (1072), supporting legs (1074) are fixedly disposed between the bottom of the steel wire mesh (1071) and the inner bottom of the foam lightweight soil layer (107), and clamping sleeves (1075) are fixedly disposed at two ends of the supporting legs (1074).
9. A racing road foundation according to claim 1, characterized in that both sides of the foamed lightweight soil layer (107) are filled with a secondary concrete layer (109).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259828.6U CN220952747U (en) | 2023-08-22 | 2023-08-22 | Road base structure for racing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322259828.6U CN220952747U (en) | 2023-08-22 | 2023-08-22 | Road base structure for racing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220952747U true CN220952747U (en) | 2024-05-14 |
Family
ID=90977713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322259828.6U Active CN220952747U (en) | 2023-08-22 | 2023-08-22 | Road base structure for racing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220952747U (en) |
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2023
- 2023-08-22 CN CN202322259828.6U patent/CN220952747U/en active Active
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