Full-width seamless integrally-formed asphalt paving method for old road extension

An integral molding and asphalt technology, which is applied in roads, roads, buildings, etc., can solve the problems of vehicles changing lanes and shaking, multi-camber, horizontal and vertical flatness, etc., to achieve fuel-saving, labor-saving, and good quality Effect

Pending Publication Date: 2020-05-19
SHAANXI ZHONGDA LIDING TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the expressway reconstruction and expansion projects, all four-to-eight-to-eight reconstruction and expansion projects are designed with a straight slope structure. As the traditional paver segregates seriously with the increase in width, it is necessary to use multiple pavers to pave together. As a result, there are longitudinal seams, which ca

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  • Full-width seamless integrally-formed asphalt paving method for old road extension
  • Full-width seamless integrally-formed asphalt paving method for old road extension
  • Full-width seamless integrally-formed asphalt paving method for old road extension

Examples

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Embodiment 1

[0030] In order to solve the technical problems of multi-slope, multi-camber, rainy water accumulation, and swaying of vehicles caused by parallel machine paving in the prior art in the expressway reconstruction and expansion project, this embodiment provides a The full-width seamless integrated asphalt paving method for the expansion of the old road uses an anti-segregation paver to pave the old road and the new road at the same time to form a straight slope structure. During the asphalt paving process, according to the paving of the old road and the new road The difference in paving thickness adjusts the discharge volume of the two spiral paver 2 respectively, and adjusts the main vibration amplitude and auxiliary vibration amplitude of the anti-segregation paver to make the transverse compactness uniform, and realize the whole-width integrally formed asphalt pavement without longitudinal seams ;

[0031] Wherein, the anti-segregation paver includes a multi-stage telescopic ...

Embodiment 2

[0035] This embodiment provides a full-width seamless integral forming asphalt paving method for old road expansion, a full-width seamless integral forming asphalt paving method for old road expansion, using an anti-segregation paver to The old road and the new road are paved at the same time to form a straight slope structure. During the asphalt paving process, according to the difference in the paving thickness of the old road and the new road, the output volume of the two spiral paver 2 is adjusted respectively, and the anti-segregation paving is adjusted The main vibrating amplitude and auxiliary vibrating amplitude of the machine make the transverse compactness uniform, and realize the integral formation of asphalt pavement with no longitudinal seam in the whole width;

[0036] According to the difference in the paving thickness of the old road and the new road, the process of adjusting the discharge volume of the two feeding troughs is as follows: respectively adjust the ...

Embodiment 3

[0041] On the basis of Example 1, this example provides a full-width seamless monolithic asphalt paving method for the expansion of old roads. During the asphalt paving process, the anti-segregation paving is adjusted according to the paving thickness and initial compactness. The main vibration amplitude and auxiliary vibration amplitude of the paving machine.

[0042] In view of the different elevations and paving thicknesses of the new and old roads to be paved, the main vibration amplitude and the auxiliary vibration amplitude are adjusted according to the paving thickness of each section, so as to fill the old road with more material and tamp it strongly to ensure the compactness after compaction. Flatness after opening to traffic.

[0043] For the "four to eight" reconstruction and expansion project, the elevation and settlement of the new and old road surfaces are different, the thickness of the horizontal paving is different, and the initial density of the paving is dif...

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Abstract

The invention provides a full-width seamless integrally-formed asphalt paving method for old road extension. An anti-segregation paver is adopted to pave an old road and a new road at the same time toform a straight slope structure; in the asphalt paving process, the discharging amount of two spiral pavers is adjusted according to the paving thickness difference of an old road and a new road, themain vibration amplitude and the auxiliary vibration amplitude of the anti-segregation paver are adjusted to enable the transverse compactness to be uniform and consistent, and the full-width longitudinal-joint-free integrally-formed asphalt pavement is achieved. Compared with an existing process of paving by multiple pavers in parallel, the problems of different elevations of new and old pavements, different settlement of the old pavements and poor transverse and longitudinal flatness which are commonly seen in four-to-eight changes in highway reconstruction and extension projects are solved. The transverse straight slope and the longitudinal seamless reconstructed and expanded expressway are built in the true sense, the design initial intention of the cross section straight slope is achieved, and the paved road surface is smooth in drainage, comfortable in driving, safe, durable and capable of achieving resource utilization. Efficiency is high and quality is good.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to a full-width seamless integrated forming asphalt paving method for old road expansion. Background technique [0002] In the expressway reconstruction and expansion projects, all four-to-eight-to-eight reconstruction and expansion projects are designed with a straight slope structure. As the traditional paver segregates seriously with the increase in width, it is necessary to use multiple pavers to pave together. As a result, there are longitudinal seams, which cannot guarantee the realization of the slope. [0003] Due to the different elevations of the new and old roads, the settlement of the old roads is different, and the horizontal and vertical flatness is poor. The road surface is multi-slope, multi-camber, rainy water, and vehicles change lanes due to road paving. Contents of the invention [0004] The purpose of the present invention is to provide ...

Claims

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Application Information

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IPC IPC(8): E01C19/48
CPCE01C19/488
Inventor 吕思忠刘甲荣苏建明王凯綦开隆姚怀新李伟孙雪妮
Owner SHAANXI ZHONGDA LIDING TECH CO LTD
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