CN213038122U - Urban road pavement basic unit structure of quick construction - Google Patents
Urban road pavement basic unit structure of quick construction Download PDFInfo
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- CN213038122U CN213038122U CN202021393931.XU CN202021393931U CN213038122U CN 213038122 U CN213038122 U CN 213038122U CN 202021393931 U CN202021393931 U CN 202021393931U CN 213038122 U CN213038122 U CN 213038122U
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Abstract
The utility model discloses an urban road surface basic unit structure of quick construction belongs to the civil engineering field, has solved the longer problem of traditional semi-rigid basic unit and rigid basic unit maintenance time. The utility model discloses be graded broken stone screed-coat, the fine cloth of polyester glass, four-way geogrid, basic unit, rubber asphalt stress absorbing layer, epoxy tie coat, pitch stabilized macadam upper base layer and BMP waterproof tie coat under prefabricated steel fiber cement concrete piece from bottom to top in proper order. The utility model has firm structure, is suitable for collapsible loess areas, and can meet the waterproof requirement; the utility model discloses the engineering time is short, and the practicality is strong.
Description
Technical Field
The utility model belongs to the civil engineering field, concretely relates to urban road pavement infrastructure of quick construction.
Background
With the rapid increase of family cars and the sudden increase of urban traffic pressure, the closed construction of a traffic trunk road needing major repair in the daytime is extremely difficult (even if the closed construction of a half-width road is also extremely difficult), and the traditional semi-rigid base layer and the rigid base layer need a certain maintenance period and cannot meet the development requirements of part of cities.
At present, pipelines under a traffic trunk are concentrated, property units are dispersed, the synchronous transformation with an overhaul road is not easy, part of pipelines are buried shallowly and cannot be repaired for a long time, and a flexible base layer with a short maintenance period is adopted, so that the influence depth of a roadbed working area cannot be zero, and the pipelines are damaged for a long time in part of years.
Some cities are built in collapsible loess areas, and loess is easy to sink when meeting water and has high waterproof requirements. At present, the conventional pavement base is difficult to meet the waterproof requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a quick urban road surface basic unit structure of being under construction to solve traditional semi-rigid basic unit and the longer problem of rigid basic unit maintenance time.
The technical scheme of the utility model is that: the utility model provides a quick urban road surface basic unit structure of being under construction, is graded rubble screed-coat, polyester glass fine cloth, four-way geogrid, prefabricated steel fiber cement concrete piece lower base layer, rubber asphalt stress absorbing layer, epoxy tie coat, pitch stabilization rubble upper base layer and BMP waterproof tie coat from bottom to top in proper order.
As a further improvement, the gap of the base layer under the prefabricated steel fiber cement concrete block is filled with GLP type caulking glue. The GLP type caulking compound is a multi-component high-molecular polymer, ensures the bonding effect between prefabricated steel fiber cement concrete blocks, and has the advantages of easy construction, excellent waterproof effect and the like.
As a further improvement, the maximum particle size of the rubble in the graded rubble screed-coat is less than or equal to 37.5mm, the minimum particle size is more than or equal to 0.075mm, and the thickness of the graded rubble screed-coat is 8 cm. The graded broken stone leveling layer is used as a leveling layer of the top surface of the original roadbed and a transition layer of the prefabricated steel fiber cement concrete block and the roadbed.
As the further improvement of the utility model, the polyester glass fiber cloth specification is 160 g/square meter, and the maximum tensile strength is 8kn, and a super waterproof layer is provided on the top surface of the graded broken stone leveling layer.
As a further improvement of the utility model, the specification of the four-way geogrid is TGSXG3030 PP.
As the utility model discloses a further improvement, the tensile strength of basic unit is 4.0Mpa under the prefabricated steel fiber cement concrete piece, and thickness is 30 ~ 50cm, steel fiber's volume content is 1.5%, and the road bed workspace degree of depth is zero when can guaranteeing pitch surface course thickness to be 10 ~ 18cm, does not basically produce the influence to the pipeline atress, does not increase extra load basically.
As a further improvement of the utility model, the thickness of the rubber asphalt stress absorbing layer is 1 cm. The super waterproof layer is provided on the top surface of the base layer under the prefabricated steel fiber cement concrete block, and the influence of reflection cracks on the pavement structure can be prevented.
As a further improvement, the thickness of the upper base layer of the asphalt stabilized macadam is 10cm, and the transition layer of the lower base layer of the asphalt surface layer and the prefabricated steel fiber cement concrete block is formed.
As the utility model discloses a further improvement, BMP waterproof bonding layer's specification is 0.5L/square meter, and thickness is 1cm, has guaranteed the bonding effect of basic unit and surface course, and the destructive power of anti vehicle and building stones is strong to have incompatible with water, can not produce the delaminating, advantages such as easy construction, maintenance time are short.
The utility model has the advantages that: the graded broken stone leveling layer levels the original roadbed, and the graded broken stones do not need to be maintained to meet the requirement of quick construction; the polyester glass fiber cloth ensures the waterproof effect of the top surface of the soil foundation and avoids the road bed sinking caused by rainwater invading the soil foundation (collapsible loess layer); compared with the traditional bidirectional grating and unidirectional grating, the four-way geogrid has excellent structural stability, enhanced node effectiveness, equal stress in all directions and greatly improved overall performance, can avoid uneven settlement and vertical deformation of the top surface of the base, can improve the structural strength of the roadbed by arranging the four-way geogrid, and reduces uneven settlement; the ultimate compressive strength and the ultimate bending tensile strength of the lower base layer of the prefabricated steel fiber cement concrete block are greatly improved compared with those of a plain concrete base layer, the fatigue resistance and the crack resistance are also higher than those of the plain concrete base layer, the lower base layer of the prefabricated steel fiber cement concrete block does not need to be maintained, the rapid construction requirement is met, and due to the arrangement of the lower base layer of the prefabricated steel fiber cement concrete block, the depth of influence on a roadbed working area is extremely small, and the influence on the stress of underground pipelines is extremely small; the rubber asphalt stress absorbing layer can greatly reduce the influence of reflection cracks on an asphalt surface layer; the upper base layer of the asphalt stabilized macadam is a transition layer of an asphalt surface layer and a lower base layer of the prefabricated steel fiber cement concrete block, the service life of the pavement structure is prolonged, the maintenance period is only 1 hour, and rapid construction can be realized; the BMP waterproof bonding layer can ensure the bonding and waterproof functions of the lower base layer of the prefabricated steel fiber cement concrete block, the upper base layer of the asphalt stabilized macadam and the asphalt surface layer. The utility model has firm structure, is suitable for collapsible loess areas, and can meet the waterproof requirement; the utility model discloses the engineering time is short, and the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-grading broken stone leveling course; 2-polyester fiberglass cloth; 3-four-way geogrids; 4-prefabricating a lower base layer of the steel fiber cement concrete block; 5-rubber asphalt stress absorbing layer; 6-epoxy resin adhesive layer; 7-asphalt stabilized macadam upper base; 8-BMP waterproof bonding layer; 9-GLP type caulk.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the rapid construction urban road pavement base course structure sequentially comprises a base graded macadam leveling layer 1, a polyester glass fiber fabric 2, a four-way geogrid 3, a prefabricated steel fiber cement concrete block lower base course 4, a rubber asphalt stress absorbing layer 5 (AR-SAMI), an epoxy resin bonding layer 6, an asphalt stabilized macadam upper base course 7 (ATB-25) and a BMP waterproof bonding layer 8 from bottom to top.
GLP type caulking glue 9 is filled in the gap of the lower base layer 4 of the prefabricated steel fiber cement concrete block.
The maximum particle size of the gravels in the graded gravel leveling layer 1 is less than or equal to 37.5mm, the minimum particle size is more than or equal to 0.075mm, the thickness of the graded gravel leveling layer 1 is 8cm, and a layer is paved.
The polyester glass fiber cloth 2 has the specification of 160 g/square meter and the maximum tensile strength of 8kn, and is paved into a layer.
The specification of the four-way geogrid 3 is TGSXG3030PP, and one layer is paved.
The tensile strength of the lower base layer 4 of the prefabricated steel fiber cement concrete block is 4.0Mpa, the thickness of the lower base layer is 30-50 cm, and the volume content of the steel fibers is 1.5%. According to different widths of the lanes, the length of the prefabricated steel fiber cement concrete block is preferably 8-10 m, and the width is preferably 5-7 m.
The thickness of the rubber asphalt stress absorption layer 5 is 1cm, the specification of the rubber asphalt is 2.5L per square meter, and one layer is paved.
The thickness of the upper base layer 7 of the asphalt stabilized macadam is 10cm, and a layer is paved.
The BMP waterproof bonding layer 8 has the specification of 0.5L per square meter and the thickness of 1 cm.
The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a quick urban road surface basic unit structure of being under construction which characterized in that: the concrete is characterized by sequentially comprising a graded macadam leveling layer (1), polyester glass fiber cloth (2), a four-way geogrid (3), a lower base layer (4) of a prefabricated steel fiber cement concrete block, a rubber asphalt stress absorbing layer (5), an epoxy resin bonding layer (6), an upper base layer (7) of asphalt stabilized macadam and a BMP waterproof bonding layer (8) from bottom to top.
2. The rapid construction urban road pavement infrastructure of claim 1, characterized in that: GLP type caulking glue (9) is filled in the gap of the lower base layer (4) of the prefabricated steel fiber cement concrete block.
3. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the maximum particle size of the gravels in the graded gravel leveling layer (1) is less than or equal to 37.5mm, the minimum particle size of the gravels in the graded gravel leveling layer (1) is more than or equal to 0.075mm, and the thickness of the graded gravel leveling layer (1) is 8 cm.
4. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the polyester glass fiber cloth (2) has the specification of 160 g/square meter and the maximum tensile strength of 8 kn.
5. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the specification of the four-way geogrid (3) is TGSXG3030 PP.
6. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the tensile strength of the lower base layer (4) of the prefabricated steel fiber cement concrete block is 4.0Mpa, the thickness of the lower base layer is 30-50 cm, and the volume content of the steel fibers is 1.5%.
7. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the thickness of the rubber asphalt stress absorbing layer (5) is 1 cm.
8. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the thickness of the asphalt stabilized macadam upper base layer (7) is 10 cm.
9. The rapid-construction urban road pavement infrastructure according to claim 1 or 2, characterized in that: the BMP waterproof bonding layer (8) has the specification of 0.5L per square meter and the thickness of 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021393931.XU CN213038122U (en) | 2020-07-15 | 2020-07-15 | Urban road pavement basic unit structure of quick construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021393931.XU CN213038122U (en) | 2020-07-15 | 2020-07-15 | Urban road pavement basic unit structure of quick construction |
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| Publication Number | Publication Date |
|---|---|
| CN213038122U true CN213038122U (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021393931.XU Active CN213038122U (en) | 2020-07-15 | 2020-07-15 | Urban road pavement basic unit structure of quick construction |
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| CN (1) | CN213038122U (en) |
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2020
- 2020-07-15 CN CN202021393931.XU patent/CN213038122U/en active Active
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