CN102691243B - Construction method for high-precision wavy pavement for automobile test - Google Patents
Construction method for high-precision wavy pavement for automobile test Download PDFInfo
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- CN102691243B CN102691243B CN201210183210.XA CN201210183210A CN102691243B CN 102691243 B CN102691243 B CN 102691243B CN 201210183210 A CN201210183210 A CN 201210183210A CN 102691243 B CN102691243 B CN 102691243B
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Abstract
The invention discloses a construction method for a high-precision wavy pavement for automobile test. The method comprises prefabrication and installation of wavy road prefabricated pieces and pouring of pavement concrete, and specifically comprises the following steps of: prefabricating a wavy pavement block by using a high-precision template and adopting steel fiber reinforced concrete, embedding pre-buried pieces for positioning and fixing the prefabricated block on a cast concrete cushion, installing the prefabricated block through a compression device and a clamp, accurately adjusting, positioning, placing and fixing an outer template, pouring self-leveling mortar in the middle to reach minimum compressive strength, and loosening and detaching the outer template. The method has the advantages that the precision design requirement of the pavement is ensured; the pavement is convenient to assemble and disassemble, meets the pouring requirement, can be reused, and is easy to repair and maintain; and the method is suitable for construction of various special-shaped curved cement concrete pavements with high precision requirements.
Description
Technical field
The present invention relates generally to a kind of pavement construction method, particularly relate to a kind of for after automobile is resonated on the wavy pavement construction method of high accuracy of vehicle body and the impact of each several part part.
Background technology
Wavy road surface is a special car test road surface, and its effect is automobile when travelling with 50km/h, the vibration (resonance) of high strength, on the impact of vehicle body and each component.DongFeng Automobile Co., Ltd's Nissan passenger car company technique center is the wavy road testing track improving the construction of research and development ability needs, long 100m, wide 3m, and single waveform is long is 500mm.Require that the accuracy of waveform on road surface reaches to require with following table 1 simultaneously:
Table 1 wavy road required precision
There is similar case on wavy road in a lot of proving ground at home, but will reach precision recited above, up to now, not yet has open report.Domestic construction and the acceptance criteria also not having such road at present, the longitudinal gradient elevation allowable error of speedway, Civil Aviation Airport way is ± 5mm, and such road surface is plane, easy enforcement, and wavy road is curved surface road surface, required precision is so high, and difficulty of construction is very large.In addition, when automobile travels with 50km/h, the impact force of the resonance road pavement produced is very large, and the intensity of road pavement also has very high requirement.
Summary of the invention
The object of the invention is exactly to make up for the inadequate defect of the wavy road surface precision of automotive test, provides a kind of high accuracy for automotive test wavy pavement construction method.
The present invention is achieved by the following technical solutions:
The wavy pavement construction method of high accuracy for automotive test, include prefabricated wavy road prefabricated component and carry out the installation of wavy road prefabricated component and building of pavement concrete, the step of prefabricated wavy road prefabricated component is as follows:
Adopt cast steel loose tool, according to waveform and the size on wavy road, the surface arranging described loose tool is sinusoidal concave surface, side form stands on the side of loose tool, loose tool and side form is connected with packing ring by bolt, pull bar is located between described two side forms and locates side form and loose tool shape in 90 °, in the die cavity be made up of described loose tool and side form, place cage of reinforcement and prefabricated section built-in fitting, then C40 steel fibre reinforced concrete is built, adopt plate vibrator jolt ramming, till there is bleeding in concrete surface, artificial trowel extruded concrete repeatedly again, and wipe one's face, leveling and initial stage health, 24 hours dismounting pull bars, after loose tool and side form, health postmenstruation obtains the prefabricated component of wavy road piecemeal,
The step of building of carrying out the installation of wavy road prefabricated component and pavement concrete is as follows:
On road surface, basic unit builds first floor concrete and forms prefabricated component C30 coagulating cement soil padding, installs bed course built-in fitting when building;
After checking and approving the absolute altitude of described prefabricated component bed course, determine Center stake position and the string of a musical instrument direction of wavy road prefabricated component by the position of setting, place wavy road prefabricated component adjustable supports cushion block;
The position of each wavy road prefabricated component by separately setting is placed on adjustable supports cushion block, after the plan-position of adjusting prefabricated section and elevation, built-in fitting is welded together, wavy road prefabricated section and bed course are fixed as entirety;
On the bed course determining prefabricated component plan-position, wavy road and elevation, take channel-section steel as road surface side form and fix;
With C40 Self-leveling pea gravel concreten, the space between prefabricated section, between prefabricated section and bed course is filled, through health.
Described C40 Self-leveling pea gravel concreten adopts slightly expanded concrete.
Described prefabricated wavy road prefabricated component is reserved suspension hook and draw-in groove on it.
Be fitted through hold down gag and the fixture of described prefabricated section are installed.
Advantage of the present invention is:
The curved surface road surface, wavy road of 1, having constructed in the process of the present invention, its surface accuracy can reach the requirement of table 1.
2, the loose tool prefabrication used in the present invention, uses it for curved surface concrete pavement construction, and Be very effective in the linear precision of raising road surface curve, effectively improves the deficiency in conventional concrete pavement construction method.
3, the inventive method specifically in various curved surface rigid pavement, high accuracy, rigid pavement can be implemented.
Accompanying drawing explanation
Fig. 1 is medium wave first class prefabricated-member mould structural representation of the present invention.
Fig. 2 is monolithic prefabricated component floor map in the present invention.
Fig. 3 is the present invention wavy road prefabricated component mounting vertical plane schematic diagram.
Fig. 4 is medium wave first class prefabricated component layout schematic diagram of the present invention.
Detailed description of the invention
The wavy pavement construction method of high accuracy for automotive test, include prefabricated wavy road prefabricated component and carry out the installation of wavy road prefabricated component and building of pavement concrete, the step of prefabricated wavy road prefabricated component is as follows:
As shown in Figure 1, processing prefabricated-member mould, adopt cast steel loose tool 2, according to waveform and the size on wavy road, the surface arranging described loose tool 2 is sinusoidal wave concave surface, side form 3 stands on the side of loose tool 2, is connected loose tool 2 and side form 3 by bolt with packing ring, and pull bar 1 is located between described two side forms 3 and locates side form 3 and loose tool 2 shape in 90 °.As shown in Figure 2, build wavy road prefabricated section, install fixing for the ease of the movement of prefabricated component and prefabricated section, in the die cavity be made up of described loose tool 2 and side form 3, the prefabricated section built-in fitting 4 placed cage of reinforcement and can capture for a pair; Build C40 steel fibre reinforced concrete, adopt plate vibrator jolt ramming or adopt poker vibrator tamping, till bleeding appears in concrete surface, more artificial trowel extruded concrete repeatedly, and wipe one's face, flatten and initial stage health; Within 24 hours, remove prefabricated-member mould, health postmenstruation obtains the wavy road prefabricated component 5 of monolithic.
The step of building of carrying out the installation of wavy road prefabricated component and pavement concrete is as follows:
As shown in Figure 3 and Figure 4, on road surface, basic unit builds first floor concrete and forms prefabricated component C30 coagulating cement soil padding 8, installs bed course built-in fitting 6 when building; After checking and approving the absolute altitude of described prefabricated component bed course, the Center stake position of wavy road prefabricated component and profound line direction is determined by the position of setting, place wavy road prefabricated component adjustable supports cushion block 7, every 15Om lays Levelling point, level measurement adopts precision level, guarantees that error of closure in leveling is in controlled range; The position of each wavy road prefabricated component 5 by separately setting is placed on adjustable supports cushion block 7, after the plan-position of adjusting prefabricated section 5 and elevation, built-in fitting 4,6 is welded together, wavy road prefabricated section 5 and bed course 8 are fixed as entirety; On the bed course determining prefabricated component plan-position, wavy road and elevation, take channel-section steel as road surface side form 9 and fix; With C40 Self-leveling pea gravel concreten, the space between prefabricated section, between prefabricated section and bed course is filled, through health.Described C40 Self-leveling pea gravel concreten adopts slightly expanded concrete.Described prefabricated wavy road prefabricated component is reserved suspension hook and draw-in groove on it.Be fitted through hold down gag and the fixture of described prefabricated section are installed.
Claims (4)
1. for the wavy pavement construction method of high accuracy of automotive test, it is characterized in that: include prefabricated wavy road prefabricated component and carry out the installation of wavy road prefabricated component and building of pavement concrete, the step of prefabricated wavy road prefabricated component is as follows:
Adopt cast steel loose tool, according to waveform and the size on wavy road, the surface arranging described loose tool is sinusoidal concave surface, side form stands on the side of loose tool, loose tool and side form is connected with packing ring by bolt, pull bar is located between described two side forms and locates side form and loose tool shape in 90 °, in the die cavity be made up of described loose tool and side form, place cage of reinforcement and prefabricated component built-in fitting, then C40 steel fibrous concrete is built, adopt plate vibrator jolt ramming, till there is bleeding in concrete surface, artificial trowel extruded concrete repeatedly again, and wipe one's face, leveling and initial stage health, pull bar is removed after 24 hours, loose tool and side form, health postmenstruation obtains the prefabricated component of wavy road piecemeal,
The step of building of carrying out the installation of wavy road prefabricated component and pavement concrete is as follows:
On road surface, basic unit builds first floor concrete and forms prefabricated component C30 coagulating cement soil padding, installs bed course built-in fitting when building;
After checking and approving the absolute altitude of described prefabricated component bed course, determine Center stake position and the string of a musical instrument direction of wavy road prefabricated component by the position of setting, place wavy road prefabricated component adjustable supports cushion block;
The position of each wavy road prefabricated component by separately setting is placed on adjustable supports cushion block, after the plan-position of adjusting prefabricated component and elevation, built-in fitting is welded together, wavy road prefabricated component and bed course are fixed as entirety;
On the bed course determining prefabricated component plan-position, wavy road and elevation, take channel-section steel as road surface side form and fix;
With C40 Self-leveling pea gravel concreten, the space between prefabricated component, between prefabricated component bed course is filled, through health.
2. the wavy pavement construction method of a kind of high accuracy for automotive test according to claim 1, is characterized in that: described C40 Self-leveling pea gravel concreten adopts slightly expanded concrete.
3. the wavy pavement construction method of a kind of high accuracy for automotive test according to claim 1, is characterized in that: described prefabricated wavy road prefabricated component is reserved suspension hook and draw-in groove on it.
4. the wavy pavement construction method of a kind of high accuracy for automotive test according to claim 1, is characterized in that: described prefabricated component is fitted through hold down gag and fixture is installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210183210.XA CN102691243B (en) | 2012-06-05 | 2012-06-05 | Construction method for high-precision wavy pavement for automobile test |
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| CN201210183210.XA CN102691243B (en) | 2012-06-05 | 2012-06-05 | Construction method for high-precision wavy pavement for automobile test |
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| CN102691243A CN102691243A (en) | 2012-09-26 |
| CN102691243B true CN102691243B (en) | 2015-03-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110195410A (en) * | 2018-02-27 | 2019-09-03 | 上汽通用汽车有限公司 | The construction method of bridge deck pavement |
| CN108487016B (en) * | 2018-03-05 | 2021-04-06 | 中交一公局第五工程有限公司 | Construction method for irregular and accurate elevation concrete pavement of test field |
| CN112012071A (en) * | 2020-08-31 | 2020-12-01 | 湖南行必达网联科技有限公司 | Construction method of cement block road of test yard and cement block road of test yard |
| CN114032731A (en) * | 2021-11-03 | 2022-02-11 | 中铁四局集团第一工程有限公司 | Imitation reduction method for special road of automobile test yard |
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| CN1584209A (en) * | 2003-08-18 | 2005-02-23 | 上海市市政工程研究院 | Block pavement constructing method |
| JP2006225915A (en) * | 2005-02-16 | 2006-08-31 | Taiheiyo Cement Corp | Concrete block for pavement |
| CN101705654A (en) * | 2009-12-10 | 2010-05-12 | 中铁四局集团有限公司 | Pavement construction method with big and small bosses |
| CN102071612A (en) * | 2010-12-08 | 2011-05-25 | 中铁四局集团第一工程有限公司 | Method for constructing arched uneven pavement slab |
| CN102433827A (en) * | 2011-11-24 | 2012-05-02 | 中铁四局集团第一工程有限公司 | Pavement construction lofting method for high-speed loop in skid pad |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688808B2 (en) * | 2002-06-12 | 2004-02-10 | Hee Jang Lee | Prefabricated cement concrete slab for road pavement |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1584209A (en) * | 2003-08-18 | 2005-02-23 | 上海市市政工程研究院 | Block pavement constructing method |
| JP2006225915A (en) * | 2005-02-16 | 2006-08-31 | Taiheiyo Cement Corp | Concrete block for pavement |
| CN101705654A (en) * | 2009-12-10 | 2010-05-12 | 中铁四局集团有限公司 | Pavement construction method with big and small bosses |
| CN102071612A (en) * | 2010-12-08 | 2011-05-25 | 中铁四局集团第一工程有限公司 | Method for constructing arched uneven pavement slab |
| CN102433827A (en) * | 2011-11-24 | 2012-05-02 | 中铁四局集团第一工程有限公司 | Pavement construction lofting method for high-speed loop in skid pad |
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