CN204435150U - A kind of desert highway assembling flexible pavement - Google Patents
A kind of desert highway assembling flexible pavement Download PDFInfo
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- CN204435150U CN204435150U CN201420825899.6U CN201420825899U CN204435150U CN 204435150 U CN204435150 U CN 204435150U CN 201420825899 U CN201420825899 U CN 201420825899U CN 204435150 U CN204435150 U CN 204435150U
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- precast block
- asphalt pavement
- asphalt
- pavement precast
- crushed rock
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Abstract
The utility model discloses a kind of desert highway assembling flexible pavement, comprise aeolian sand subgrade, crushed rock base course and asphalt pavement precast block combination layer is equipped with from bottom to up successively according to stratiform overlaying structure at the upper surface of described aeolian sand subgrade, wherein, described asphalt pavement precast block combination layer is formed by the assembled making of polylith asphalt pavement precast block, the upper surface of described crushed rock base course is equipped with multiple reinforcement unit, the seam crossing one_to_one corresponding of the plurality of reinforcement unit and between two asphalt pavement precast block, for carrying out reinforcement to the seam crossing of asphalt pavement precast block, fixing by bonding between described crushed rock base course and asphalt pavement precast block combination layer, every block asphalt pavement precast block comprises asphalt surface course and substrate from top to bottom successively according to stratiform overlaying structure, and described asphalt surface course and substrate are solidified as a whole by bonding.The utility model has water saving construction, extends the advantages such as construction seasons, rapid construction and rapid curing.
Description
Technical field
The utility model relates to the technical field of desert highway, refers in particular to a kind of desert highway assembling flexible pavement.
Background technology
Desert area drought and water shortage, cement pavement construction needs at substantial water resource, therefore should not adopt cement pavement.For flexible pavement, summer, temperature was low sooner or later, and the winter temperature low time is long, hot-mixed bitumen pavement of cannot constructing; Construction mulseal or foamed asphalt cold-mix asphalt mixture pavement, need at substantial water, also cannot construct during freezed in winter.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of desert highway assembling flexible pavement, achieves water saving construction, extends construction seasons, rapid construction and rapid curing etc.
For achieving the above object, technical scheme provided by the utility model is: a kind of desert highway assembling flexible pavement, comprise aeolian sand subgrade, crushed rock base course and asphalt pavement precast block combination layer is equipped with from bottom to up successively according to stratiform overlaying structure at the upper surface of described aeolian sand subgrade, wherein, described asphalt pavement precast block combination layer is formed by the assembled making of polylith asphalt pavement precast block, the upper surface of described crushed rock base course is equipped with multiple reinforcement unit, the seam crossing one_to_one corresponding of the plurality of reinforcement unit and between two asphalt pavement precast block, for carrying out reinforcement to the seam crossing of asphalt pavement precast block, fixing by bonding between described crushed rock base course and asphalt pavement precast block combination layer, every block asphalt pavement precast block comprises asphalt surface course and substrate from top to bottom successively according to stratiform overlaying structure, and described asphalt surface course and substrate are solidified as a whole by bonding.
Described substrate is galvanized sheet iron.
Described substrate thickness is 0.44 ~ 1.2mm.
Described reinforcement unit is geo-grid, geotextiles or glass-fiber-fabric.
The seam of described asphalt pavement precast block between two adopts the heated bitumen cementation of fissures.
Mulseal or heated bitumen bonding is adopted between described crushed rock base course and asphalt pavement precast block combination layer.
The planar dimension of described asphalt pavement precast block is: length 5m ~ 20m, width 1m ~ 20m.
The thickness of described crushed rock base course is 15cm ~ 100cm.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, desert highway assembling flexible pavement described in the utility model can realize water saving construction, adopt aeolian sand subgrade, crushed rock base course and prefabricated asphalt surface course, roadbed and basic unit adopt dry-pressing construction, do not need consumption of water resource in whole road structure work progress;
2, due to the temperature dependency of bituminous mixture intensity, under low temperature, the intensity of bituminous mixture is high, therefore adopts freezing and refrigeration method to improve the intensity of asphalt pavement precast block, effectively can prevent prefabricated section distortion and breakage in transport and installation process;
3, desert highway assembling flexible pavement described in the utility model adopts the construction technologies such as prefabricated, cutting, refrigeration, transport, installation, and can extend the pavement construction time, site operation speed is fast;
4, desert highway assembling flexible pavement described in the utility model can realize rapid curing, after disease appears in asphalt pavement precast block, the prefabricated section of breakage can be excised, replace to new asphalt pavement precast block, thus realize rapid curing.
Accompanying drawing explanation
Fig. 1 is the structural representation of desert highway assembling flexible pavement described in the utility model in embodiment 1.
Detailed description of the invention
Below in conjunction with two specific embodiments, the utility model is described in further detail.
Embodiment 1
Certain speedway implements desert highway assembling flexible pavement described in the utility model.
As shown in Figure 1, desert highway assembling flexible pavement described in the present embodiment, include asphalt pavement precast block combination layer, crushed rock base course 4, aeolian sand subgrade 5, wherein, described asphalt pavement precast block combination layer, crushed rock base course 4, aeolian sand subgrade 5 are laid from top to bottom successively according to stratiform overlaying structure.Described asphalt pavement precast block combination layer is formed by the assembled making of polylith asphalt pavement precast block, and the planar dimension of every block asphalt pavement precast block is: length 5m, width 1m.The thickness of described crushed rock base course 4 is 15cm, its upper surface is equipped with multiple reinforcement unit 3, can be geo-grid, geotextiles or glass-fiber-fabric, and in the present embodiment, adopt geo-grid, the seam crossing one_to_one corresponding of the plurality of reinforcement unit 3 and between two asphalt pavement precast block, for carrying out reinforcement to the seam crossing of asphalt pavement precast block.Mulseal or heated bitumen bonding is adopted to fix between described crushed rock base course 4 and asphalt pavement precast block combination layer.Every block asphalt pavement precast block comprises asphalt surface course 1 and substrate 2 from top to bottom successively according to stratiform overlaying structure, described asphalt surface course 1 and substrate 2 are solidified as a whole by bonding, described substrate 2 is galvanized sheet iron, thickness is 0.44mm, in flexible pavement prefabrication process, substrate 2 plays isolation bituminous mixture and cement concrete ground effects.
Be below the concrete construction method of the present embodiment above-mentioned desert highway assembling flexible pavement, its situation is as follows:
1) batch production of asphalt pavement precast block makes
Prefabricated bituminous surface in factory building, the interior temperature of factory building controls at 20 DEG C, and cement concrete is laid on ground, and requirement can bear working load, and the making step of asphalt pavement precast block is as follows:
First, substrate is laid on the cement concrete ground of factory building inside, play isolation bituminous mixture and cement concrete ground effects;
Secondly, spread mulseal or heated bitumen on substrate;
Finally, construction asphalt surface course, making length is 30m, width is the flexible pavement of 5m.
2) cutting of asphalt pavement precast block
Asphalt surface course paves complete, when temperature drops to below 60 DEG C, adopts cutting machine, is cut into asphalt pavement precast block according to required planar dimension.
3) the freezing and transport of asphalt pavement precast block
Due to the temperature dependency of bituminous mixture intensity, under low temperature, the intensity of bituminous mixture is high, therefore adopt freezing and refrigeration method to improve the intensity of asphalt pavement precast block, prevent asphalt pavement precast block distortion and breakage in transport and installation process, asphalt pavement precast block is moved between van cooler, environment temperature is-10 DEG C, when bituminous mixture temperature is down to-10 DEG C, hoisting transportation, adopts refrigerator car conveying asphalt road surface prefabricated section, in transportation, bituminous mixture temperature maintains-10 DEG C.
4) construction aeolian sand subgrade and crushed rock base course
Adopt vibratory roller, loader, land leveller and bulldozer, layering dry-pressing construction aeolian sand subgrade, lift height is 15cm, and degree of compaction is 93%; Adopt paver, vibratory roller, rubber-tyred roller layering dry-pressing construction crushed rock base course, lift height is 10cm, and degree of compaction is 93%.
5) asphalt pavement precast block is installed
Before making asphalt pavement precast block, according to the unit size of road surface size and prefabricated section, determine erection method, the laying step of asphalt pavement precast block is as follows:
First, by clean to crushed rock base course surface washing and cleaning, after surface is dried, spread mulseal;
Secondly, lay at the upper surface of crushed rock base course the geo-grid that correspond to asphalt pavement precast block seam crossing, reinforcement is carried out to the seam crossing of asphalt pavement precast block;
Then, asphalt pavement precast block is taken out from refrigerator car, lifting be laid on crushed rock base course surface, every block asphalt pavement precast block from be taken out to be laid on crushed rock base course surface time controling in 10min;
Finally, the gap between two between asphalt pavement precast block adopts the heated bitumen cementation of fissures, ensures secure bond between asphalt pavement precast block between two;
So far, terminate can open to traffic in construction.
Embodiment 2
Certain Class II highway implements desert highway assembling flexible pavement described in the utility model.
Described in the present embodiment, the thickness of substrate 2 is 1.2mm as different from Example 1.The planar dimension of described asphalt pavement precast block is: length 20m, width 20m.The thickness of described crushed rock base course 4 is 100cm.Described reinforcement unit 3 adopts geotextiles.
In the present embodiment, the concrete construction method of described desert highway assembling flexible pavement is as follows:
1) batch production of asphalt pavement precast block makes
Prefabricated bituminous surface in factory building, the interior temperature of factory building controls at 40 DEG C, and cement concrete is laid on ground, and requirement can bear working load, and the making step of asphalt pavement precast block is as follows:
First, substrate is laid on the cement concrete ground of factory building inside, play isolation bituminous mixture and cement concrete ground effects;
Secondly, spread mulseal or heated bitumen on substrate;
Finally, construction asphalt surface course, making length is 150m, width is the flexible pavement of 20m.
2) cutting of asphalt pavement precast block
Asphalt surface course paves complete, when temperature drops to below 60 DEG C, adopts cutting machine, is cut into asphalt pavement precast block according to required planar dimension.
3) the freezing and transport of asphalt pavement precast block
Due to the temperature dependency of bituminous mixture intensity, under low temperature, the intensity of bituminous mixture is high, therefore adopt freezing and refrigeration method to improve the intensity of asphalt pavement precast block, prevent asphalt pavement precast block distortion and breakage in transport and installation process, asphalt pavement precast block is moved between van cooler, environment temperature is 10 DEG C, when bituminous mixture temperature is down to 10 DEG C, hoisting transportation, adopts refrigerator car conveying asphalt road surface prefabricated section, in transportation, bituminous mixture temperature maintains 10 DEG C.
4) construction aeolian sand subgrade and crushed rock base course
Adopt vibratory roller, loader, land leveller and bulldozer, layering dry-pressing construction aeolian sand subgrade, lift height is 30cm, and degree of compaction is 99%; Adopt paver, vibratory roller, rubber-tyred roller layering dry-pressing construction crushed rock base course, lift height is 25cm, and degree of compaction is 99%.
5) asphalt pavement precast block is installed
Before making asphalt pavement precast block, according to the unit size of road surface size and prefabricated section, determine erection method, the laying step of asphalt pavement precast block is as follows:
First, by clean to crushed rock base course surface washing and cleaning, after surface is dried, spread mulseal or heated bitumen;
Secondly, lay at the upper surface of crushed rock base course the geotextiles that correspond to asphalt pavement precast block seam crossing, reinforcement is carried out to the seam crossing of asphalt pavement precast block, and at Geotextile spread mulseal;
Then, asphalt pavement precast block is taken out from refrigerator car, lifting be laid on crushed rock base course surface, every block asphalt pavement precast block from be taken out to be laid on crushed rock base course surface time controling in 10min;
Finally, the gap between two between asphalt pavement precast block adopts the heated bitumen cementation of fissures, ensures secure bond between asphalt pavement precast block between two;
So far, terminate can open to traffic in construction.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit practical range of the present utility model with this, therefore the change that all shapes according to the utility model, principle are done, all should be encompassed in protection domain of the present utility model.
Claims (8)
1. a desert highway assembling flexible pavement, it is characterized in that: comprise aeolian sand subgrade, crushed rock base course and asphalt pavement precast block combination layer is equipped with from bottom to up successively according to stratiform overlaying structure at the upper surface of described aeolian sand subgrade, wherein, described asphalt pavement precast block combination layer is formed by the assembled making of polylith asphalt pavement precast block, the upper surface of described crushed rock base course is equipped with multiple reinforcement unit, the seam crossing one_to_one corresponding of the plurality of reinforcement unit and between two asphalt pavement precast block, for carrying out reinforcement to the seam crossing of asphalt pavement precast block, fixing by bonding between described crushed rock base course and asphalt pavement precast block combination layer, every block asphalt pavement precast block comprises asphalt surface course and substrate from top to bottom successively according to stratiform overlaying structure, and described asphalt surface course and substrate are solidified as a whole by bonding.
2. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: described substrate is galvanized sheet iron.
3. a kind of desert highway assembling flexible pavement according to claim 1 and 2, is characterized in that: described substrate thickness is 0.44 ~ 1.2mm.
4. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: described reinforcement unit is geo-grid, geotextiles or glass-fiber-fabric.
5. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: the seam of described asphalt pavement precast block between two adopts the heated bitumen cementation of fissures.
6. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: adopt mulseal or heated bitumen bonding between described crushed rock base course and asphalt pavement precast block combination layer.
7. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: the planar dimension of described asphalt pavement precast block is: length 5m ~ 20m, width 1m ~ 20m.
8. a kind of desert highway assembling flexible pavement according to claim 1, is characterized in that: the thickness of described crushed rock base course is 15cm ~ 100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825899.6U CN204435150U (en) | 2014-12-23 | 2014-12-23 | A kind of desert highway assembling flexible pavement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420825899.6U CN204435150U (en) | 2014-12-23 | 2014-12-23 | A kind of desert highway assembling flexible pavement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532716A (en) * | 2014-12-23 | 2015-04-22 | 华南理工大学 | Assembly asphalt pavement for desert highway and construction method of assembly asphalt pavement |
| CN108978388A (en) * | 2018-07-24 | 2018-12-11 | 辽宁科技大学 | A kind of anti-passage salt tolerant erosion composite block material tube panel of assembled and construction technology |
| CN110438861A (en) * | 2019-07-16 | 2019-11-12 | 无锡市天合景观工程有限公司 | A kind of double-colored asphalt pavement structure and its construction technology |
-
2014
- 2014-12-23 CN CN201420825899.6U patent/CN204435150U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532716A (en) * | 2014-12-23 | 2015-04-22 | 华南理工大学 | Assembly asphalt pavement for desert highway and construction method of assembly asphalt pavement |
| CN108978388A (en) * | 2018-07-24 | 2018-12-11 | 辽宁科技大学 | A kind of anti-passage salt tolerant erosion composite block material tube panel of assembled and construction technology |
| CN110438861A (en) * | 2019-07-16 | 2019-11-12 | 无锡市天合景观工程有限公司 | A kind of double-colored asphalt pavement structure and its construction technology |
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| 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: 20150701 Termination date: 20171223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |