CN210737269U - Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area - Google Patents
Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area Download PDFInfo
- Publication number
- CN210737269U CN210737269U CN201921479036.7U CN201921479036U CN210737269U CN 210737269 U CN210737269 U CN 210737269U CN 201921479036 U CN201921479036 U CN 201921479036U CN 210737269 U CN210737269 U CN 210737269U
- Authority
- CN
- China
- Prior art keywords
- layer
- base layer
- road
- shallow sea
- bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model provides a roadbed pavement structure suitable for rapid road construction in a shallow sea hydraulic reclamation area, wherein a lower road bed layer, an upper road bed layer, a subbase layer, a base layer and a surface layer are sequentially arranged on a hydraulic reclamation foundation, the lower road bed layer is a hillside soil layer, and the hillside soil layer is isolated into a plurality of layers through a plurality of geogrids to form a reinforced structure; the upper bed layer is a cement lime soil water-resisting layer, and the subbase layer is a lime fly ash soil layer; the base layer comprises an upper flexible base layer and a lower semi-rigid base layer, the upper flexible base layer is a dense asphalt gravel layer, and the lower semi-rigid base layer is a cement stable gravel layer; the surface layer is an asphalt concrete layer. The utility model discloses the road surface structure that will add muscle road bed and just gentle and supplement is used for shallow sea hydraulic reclamation area to reinforcing road bed, road surface wholeness improve its ability that resists the uneven settlement of ground, satisfy the needs that shallow sea hydraulic reclamation district built the way fast.
Description
Technical Field
The utility model belongs to road surface structural design field especially relates to a roadbed pavement structure suitable for shallow sea hydraulic reclamation district builds way fast.
Background
Because the underground water level of the shallow sea hydraulic reclamation area is high, the water content of foundation soil is large, the compressibility is strong, the salt content is large, the non-uniformity of the hydraulic reclamation foundation is obvious, the post-construction settlement, especially the non-uniform settlement is large, the prepressing period is short, the road traffic built earlier has large-area cracking within 1-3 years, and the conventional roadbed and pavement structure can not meet the requirements. In order to adapt to the uneven settlement of the foundation in the shallow sea reclamation area and meet the requirement of quickly building roads, a novel roadbed and pavement structure needs to be researched.
Disclosure of Invention
In view of this, the utility model aims at providing a roadbed pavement structure suitable for shallow sea hydraulic reclamation district is built way fast will add the road surface structure that muscle road bed and hardness and softness are in each other and be used for shallow sea hydraulic reclamation area to reinforcing road bed, road surface wholeness improve its ability of resisting the inhomogeneous settlement of ground, satisfy the needs that shallow sea hydraulic reclamation district built way fast.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a roadbed and pavement structure suitable for rapid road construction in a shallow sea hydraulic reclamation area is characterized in that a lower road bed layer, an upper road bed layer, an underlayer, a base layer and a surface layer are sequentially arranged on a hydraulic reclamation foundation, wherein the lower road bed layer is a mountain skin soil layer, and the mountain skin soil layer is isolated into a plurality of layers through a plurality of geogrids to form a reinforcement structure; the upper bed layer is a cement lime soil water-resisting layer, and the subbase layer is a lime fly ash soil layer; the base layer comprises an upper flexible base layer and a lower semi-rigid base layer, the upper flexible base layer is a dense asphalt gravel layer, and the lower semi-rigid base layer is a cement stable gravel layer; the surface layer is an asphalt concrete layer.
Furthermore, an anti-cracking interlayer is arranged between the upper flexible base layer and the lower semi-rigid base layer.
Further, the anti-cracking interlayer is a modified asphalt stress absorbing layer and an anti-cracking geotextile layer.
Compared with the prior art, the utility model discloses following advantage has:
(1) the utility model discloses the road surface structure that will add muscle road bed and just gentle and supplement is used for shallow sea hydraulic reclamation area to reinforcing road bed, road surface wholeness improve its ability that resists the uneven settlement of ground, satisfy the needs that shallow sea hydraulic reclamation district built the way fast.
(2) The utility model discloses the construction is swift, economic safety, benefit are considerable.
Drawings
The accompanying drawings, which form a part hereof, 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 without undue limitation. In the drawings:
fig. 1 is a sectional view of a roadbed and pavement structure according to an embodiment of the present invention.
Description of reference numerals:
1-surface layer, 2-upper flexible base layer, 3-anti-cracking interlayer, 4-lower semi-rigid base layer, 5-base layer, 6-upper bed layer, 7-lower bed layer, 8-geogrid and 9-hydraulic filling foundation.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the embodiment of the roadbed and pavement structure suitable for rapid road construction in a shallow sea reclamation area, as shown in fig. 1, a lower road bed layer 7, an upper road bed layer 6, a sub-base layer 5, a base layer and a surface layer 1 are sequentially arranged on a reclamation foundation 9,
the lower road bed layer 7 is a mountain crust soil layer which is isolated into a plurality of layers through a plurality of bi-directional stretching geogrids 8 to form a reinforced structure; the mountain skin soil has strong water damage resistance and is convenient for construction; a reinforcement structure is formed by combining the geogrids 8, the diffusion load is distributed, the bearing capacity and the stability of the roadbed are improved, the differential settlement of the foundation is reduced, and meanwhile capillary water is prevented from rising;
the upper bed layer 6 is a cement lime soil water-resisting layer and prevents damage of saline soil;
the subbase layer 5 is a lime fly ash soil layer;
the base layer comprises an upper flexible base layer 2 and a lower semi-rigid base layer 4, wherein the upper flexible base layer 2 is a dense asphalt gravel layer, and the specific material is dense asphalt gravel ATB-30; the lower semi-rigid base layer 4 is a cement-stabilized rubble layer; the pavement structure with the combination of the semi-rigid base layer 4 and the flexible base layer 2 is adopted, namely asphalt macadam is added on the traditional semi-rigid base layer to serve as the flexible base layer, so that the crack stress and strain concentration of the semi-rigid base layer can be effectively absorbed and reduced, the upward reflection of the base layer crack is prevented, and the generation of the reflection crack of the asphalt pavement is effectively inhibited and reduced;
the surface layer 1 is an asphalt concrete layer.
An anti-cracking interlayer 3 is arranged between the upper flexible base layer 2 and the lower semi-rigid base layer 4, and the anti-cracking interlayer 3 is arranged between the lower semi-rigid base layer 4 and the upper flexible base layer 2 to enhance the effect of preventing reflection cracks; the anti-cracking interlayer 3 is a modified asphalt stress absorbing layer and an anti-cracking geotextile layer, and preferably, the anti-cracking interlayer 3 is formed by a 1cm waste tire rubber powder modified asphalt stress absorbing layer and an anti-cracking geotextile layer.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a road bed road surface structure suitable for shallow sea hydraulic reclamation district is built road fast which characterized in that: the hydraulic filling foundation is sequentially provided with a lower bed layer, an upper bed layer, a subbase layer, a base layer and a surface layer,
the lower bed layer is a mountain skin soil layer, and the mountain skin soil layer is isolated into a plurality of layers through a plurality of geogrids to form a reinforced structure;
the upper bed layer is a cement lime soil water-resisting layer;
the subbase layer is a lime fly ash soil layer;
the base layer comprises an upper flexible base layer and a lower semi-rigid base layer, the upper flexible base layer is a dense asphalt gravel layer, and the lower semi-rigid base layer is a cement stable gravel layer;
the surface layer is an asphalt concrete layer.
2. The roadbed pavement structure suitable for rapid road construction in shallow sea reclamation areas according to claim 1, wherein the roadbed pavement structure comprises: an anti-cracking interlayer is arranged between the upper flexible base layer and the lower semi-rigid base layer.
3. The roadbed pavement structure suitable for rapid road construction in shallow sea reclamation areas according to claim 2, wherein the roadbed pavement structure comprises: the anti-cracking interlayer is a modified asphalt stress absorbing layer and an anti-cracking geotextile layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479036.7U CN210737269U (en) | 2019-09-06 | 2019-09-06 | Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479036.7U CN210737269U (en) | 2019-09-06 | 2019-09-06 | Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210737269U true CN210737269U (en) | 2020-06-12 |
Family
ID=70983611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921479036.7U Active CN210737269U (en) | 2019-09-06 | 2019-09-06 | Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210737269U (en) |
-
2019
- 2019-09-06 CN CN201921479036.7U patent/CN210737269U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113445396B (en) | High-fill road foundation filling construction method for high liquid limit soil road section | |
| CN101691724A (en) | Liquefied soil foundation quake-proof road-bridge transition section structure of ballastless track of high-speed railway | |
| CN202899165U (en) | T-shaped wallboard type retaining wall structure of highway subgrade | |
| CN106193066B (en) | A kind of Loess landslide administering method based on restoration of the ecosystem | |
| CN105297570B (en) | Special soil subgrade structure and construction method thereof | |
| CN111441206B (en) | Composite reinforced lightweight soil retaining wall roadbed integrated structure and construction method | |
| CN112921946A (en) | Reinforcing system and reinforcing method for liquefiable site reinforced gravel pile composite foundation embankment | |
| CN201530961U (en) | Transition section structure of liquefying soil foundation anti-seismic road and bridge of high-speed railway ballastless track | |
| CN201530968U (en) | High-speed railway liquefying soil foundation-roadbed seismic strengthening structure | |
| CN206625096U (en) | A kind of reinforced rubble frame structure subgrade strengthening system | |
| CN101892620A (en) | High intensity freezing damage prevention waterproof cushion layer | |
| CN106192652A (en) | A kind of high steep embankment ruggedized construction preventing differential settlement | |
| CN207419173U (en) | A kind of composite road bed structure of lightweight | |
| CN106836034B (en) | High-fill cover plate culvert flexible load shedding system and construction method | |
| CN219621703U (en) | Water conservancy river course slope protection structure | |
| CN210737269U (en) | Roadbed and pavement structure suitable for quickly building road in shallow sea reclamation area | |
| CN112048958A (en) | Supporting structure, embankment and construction method of embankment | |
| CN104499397A (en) | Asphalt pavement structure based on coordination of deformation of subgrade and pavement | |
| CN204875404U (en) | Pre -buried formula pipeline intersecting structure in road surface | |
| CN103758109A (en) | Arrangement and processing method for long firm and oil solidated water draining chemical churning pile foundation | |
| CN215758302U (en) | High liquid limit soil roadbed structure | |
| CN202401363U (en) | Flaky or blocky stone ventilated roadbed of expressway in frozen soil region | |
| CN112982051B (en) | Roadbed suitable for karst landform and construction method | |
| CN211395209U (en) | Tunnel antiseep combined type road surface | |
| CN103898824B (en) | The method that Cold And Frozen-soil Regions roadbed processes substrate with plastic draining board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |