CN203144861U - Local reinforcement structure for municipal road - Google Patents
Local reinforcement structure for municipal road Download PDFInfo
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- CN203144861U CN203144861U CN 201320052187 CN201320052187U CN203144861U CN 203144861 U CN203144861 U CN 203144861U CN 201320052187 CN201320052187 CN 201320052187 CN 201320052187 U CN201320052187 U CN 201320052187U CN 203144861 U CN203144861 U CN 203144861U
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- reinforcement structure
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Abstract
The utility model discloses a local reinforcement structure for a municipal road. The local reinforcement structure is positioned just above an underground structure crossing the road and is at least one layer of geogrids fixedly arranged in the road. The local reinforcement structure enhances the longitudinal and transverse tensile strength of the road as well as the overall strength of the road, can prevent the local uneven settlement, saves the consumption of manpower and material resources, improves the quality of the road, is low in construction cost, safe and reliable, simple, convenient and feasible, and high in efficiency, improves the working efficiency, and saves the manpower, the material resources and financial resources.
Description
Technical field
The utility model relates to a kind of road ruggedized construction, particularly a kind of town road local stiffening structure.
Background technology
At present, in the town road work progress, a lot of across underground structures such as the reservation ditch of road, pre-buried cable duct bank and box culverts, the backfilling material degree of compaction often is difficult to reach designing requirement, especially under tight condition of rainy season or construction period, degree of compaction more be cannot say for sure card.Therefore, need to explore the road local stiffening structure that makes new advances and solve this difficult problem.
The utility model content
The utility model provides a kind of structure that can be suitable for the town road local stiffening for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of town road local stiffening structure, this ruggedized construction is positioned at across directly over the underground structure of road, for being fixed on the geo-grid of one deck at least in the road.
Described geo-grid comprises two-layer, and the first floor geo-grid is fixed on road bed, and goes out underground structure back filling behind abutment side slope top line 3m at least along the vertical every side of road is wide, laterally is the boundary with the highway sideline; Second layer geo-grid is fixed on the priming oil of substrate surface, and goes out underground structure back filling behind abutment side slope top line 1m at least along the vertical every side of road is wide at least, laterally is the boundary with the highway sideline.
Described first floor geo-grid is that two-way steel is moulded geo-grid, and described second layer geo-grid is earth grille.
Advantage and the good effect that the utlity model has are: 1) geo-grid has increased the tensile strength of the vertical and horizontal of road; 2) geo-grid has increased the bulk strength of road, can resist local differential settlement; 3) use of geo-grid, the consumption of having saved human and material resources; 4) improved the quality of road, construction cost is low, and is safe and reliable; 5) simple and easy to do, efficient is high, improved operating efficiency, has saved human and material resources and financial resources.
Description of drawings
Fig. 1 is plan view of the present utility model;
Fig. 2 is sectional drawing of the present utility model;
Fig. 3 is the fixing schematic diagram of the utility model first floor geo-grid;
Fig. 4 is the fixing schematic diagram of the utility model second layer geo-grid.
Among the figure: 1, first floor geo-grid, 2, U-shaped nail, 3, emulsified asphalt slurry seal, 4, underground structure, 5, underground structure back filling behind abutment side slope, 6, basic unit, 7, asphalt surface course, 8, medium coarse sand, 9, second layer geo-grid, 10, zinc-plated cement steel nail.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1～Fig. 3, a kind of town road local stiffening structure, this ruggedized construction are positioned at across directly over the underground structure 4 of road, for being fixed on the geo-grid of one deck at least in the road.
In the present embodiment, above-mentioned geo-grid comprises first floor geo-grid 1 and the second layer geo-grid 9 that is placed on road bed, second layer geo-grid 9 is placed on the priming oil on basic unit 6 surfaces, the U-shaped nail 2 of described first floor geo-grid 1 usefulness is fixed, and described second layer geo-grid is fixed with zinc-plated cement steel nail 10.
The job practices of above-described embodiment:
When one) construction is crossed road or is positioned at structure 4 on the road, after main body construction is finished, adopt medium coarse sand 8 to carry out back filling behind abutment, and compaction in layers, carry out the subgrade soils placement in layers then and roll;
Two) roll finish after, place first floor geo-grid 1 at the roadbed top, and go out underground structure back filling behind abutment side slope 5 top lines 3m at least along the vertical every side of road is wide, it laterally is the boundary with the highway sideline, adopt the U-shaped nail 2 of line footpath 2.85mm to fix according to 1.5m * 1.5, lap length between the adjacent geo-grid section monomer is horizontal 15cm, and vertically 20cm lap-joint answers colligation firm;
Three) after first floor geo-grid 1 is laid and finished, lay the cement stabilized macadam layer, form roadbase 6, at basic unit's 6 surface sprinkling priming oils, priming oil adopts road asphalt AL-1 type.Place second layer geo-grid 9 at priming oil, go out underground structure back filling behind abutment side slope 5 top lines 1m at least along the vertical every side of road is wide at least, it laterally is the boundary with the highway sideline, adopt the U-shaped nail 2 of line footpath 2.85mm to fix according to 1.5m * 1.5, lap length between the adjacent geo-grid monomer is horizontal 15cm, and vertically 20cm lap-joint answers colligation firm;
Four) after second layer geo-grid 9 is fixing, on second layer geo-grid 9 and the substrate surface that exposes to the open air spray ES-2 type emulsified asphalt slurry seal 3, form the tack coat of asphalt surface course 7;
Five) lay asphalt surface course 7 at the tack coat of asphalt surface course 7.
In the present embodiment, above-mentioned first floor geo-grid selects for use the two-way steel of GSZ80-80 to mould geo-grid, and the second layer is selected the GG80-80 earth grille for use.When structure 4 backfill positions produce relative settlement, by two-layer geo-grid load is assigned on the road surface, both sides, can prevent that the road surface from deforming.In the present embodiment, adopted two-layer geo-grid, but the utility model is not restricted to this, also can adopt the single or multiple lift geo-grid, and the position of geo-grid can be in roadbed, basic unit or the surface layer of road, and the concrete number of plies and present position should be determined according to factors such as road foundation, backfill quality and weather.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (3)
1. a town road local stiffening structure is characterized in that, this ruggedized construction is positioned at across directly over the underground structure of road, for being fixed on the geo-grid of one deck at least in the road.
2. town road local stiffening structure according to claim 1, it is characterized in that described geo-grid comprises two-layer, the first floor geo-grid is fixed on road bed, and going out underground structure back filling behind abutment side slope top line 3m at least along the vertical every side of road is wide, laterally is the boundary with the highway sideline; Second layer geo-grid is fixed on the priming oil of substrate surface, and goes out underground structure back filling behind abutment side slope top line 1m at least along the vertical every side of road is wide at least, laterally is the boundary with the highway sideline.
3. town road local stiffening structure according to claim 2 is characterized in that, described first floor geo-grid is that two-way steel is moulded geo-grid, and described second layer geo-grid is earth grille.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052187 CN203144861U (en) | 2013-01-30 | 2013-01-30 | Local reinforcement structure for municipal road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052187 CN203144861U (en) | 2013-01-30 | 2013-01-30 | Local reinforcement structure for municipal road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144861U true CN203144861U (en) | 2013-08-21 |
Family
ID=48972402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052187 Expired - Fee Related CN203144861U (en) | 2013-01-30 | 2013-01-30 | Local reinforcement structure for municipal road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203144861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552271A (en) * | 2019-09-27 | 2019-12-10 | 佛山科学技术学院 | anti-skid pavement structure and construction method thereof |
| CN111335106A (en) * | 2020-03-25 | 2020-06-26 | 广东荣潮拓展建设有限公司 | Construction method of asphalt concrete pavement |
-
2013
- 2013-01-30 CN CN 201320052187 patent/CN203144861U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552271A (en) * | 2019-09-27 | 2019-12-10 | 佛山科学技术学院 | anti-skid pavement structure and construction method thereof |
| CN111335106A (en) * | 2020-03-25 | 2020-06-26 | 广东荣潮拓展建设有限公司 | Construction method of asphalt concrete pavement |
| CN111335106B (en) * | 2020-03-25 | 2021-10-22 | 广东荣潮拓展建设有限公司 | Construction method of asphalt concrete pavement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |