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3D paving construction method for small-radius variable-amplitude curve

A construction method and small radius technology, applied in the field of building construction, to achieve the effect of ensuring the degree of compaction

Active Publication Date: 2022-05-20
CHINA CONSTR SECOND ENG BUREAU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a 3D paving construction method for small-radius variable-amplitude curves, which is used to solve technical problems such as 3D paving, paving scheme design, joint treatment, and road rolling of small-radius variable-amplitude curves.

Method used

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  • 3D paving construction method for small-radius variable-amplitude curve
  • 3D paving construction method for small-radius variable-amplitude curve

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Embodiment Construction

[0043] Taking the extreme track area of ​​an intelligent networked vehicle test project as the background, the track is a repeated curve with large turning curves, small turning radius, large longitudinal slope changes, frequent slope changes, and large slopes (-4.15%~3.27%) At the same time, there are a large number of asphalt buffer paving with irregular sizes, the flatness is difficult to control, and the width of the road surface of the main track changes greatly when turning, and the width of some road sections exceeds 15m. Therefore, the construction of the curve in this track is carried out by the 3D paving construction method of the small-radius variable-amplitude curve.

[0044] Such as figure 1 and figure 2 As shown, a 3D paving construction method for a small-radius variable-amplitude curve. The curve section 3 between; the curve starting section 2 is provided with a curve laying starting point 1, and the curve starting section 4 is provided with a curve laying e...

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Abstract

The invention discloses a 3D paving construction method for a small-radius variable-amplitude curve. The curve comprises a curve starting section, a curve starting section and a curve section connected between the curve starting section and the curve starting section. A curve laying starting point is arranged on the curve starting section, and a curve laying end point is arranged on the curve starting section; and the curve has a small radius. During construction, through 3D modeling and a corresponding control technology, construction parameters can be determined before paving, and construction in the process can be further guaranteed; through the targeted design of the paver and the road rollers, simultaneous construction of a plurality of spokes is facilitated, and rolling is performed in a manner of combining the large road roller and the small road roller, so that the line type can be fixed and ensured, the compaction degree can be ensured, and the paving speed can be controlled when paving is performed to a small-radius area; through the design of the joints, treatment according to schemes is facilitated under different conditions of the transverse joints and the longitudinal joints, and construction can be further guided.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a 3D paving construction method for small-radius variable-amplitude curves. Background technique [0002] The current 3D paving technology has been applied in railways, roads, airports, dams, rivers, mines, landfills, ports, urban construction and other fields. In recent years, new test (race) car fields have been built for testing Or the continuous sharp curve road of the competition, and the paving of asphalt pavement on the continuous curve section of the minimum turning radius of this type of road is limited by the performance of the paving machine and the leveling method. There are problems such as difficulty in controlling the height of the screed, difficulty in turning equipment, difficulty in feeding materials, etc., and the paving accuracy is easy to lose control. Therefore, there is an urgent need for targeted design of curves and luffing road...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C19/48G01D21/02
CPCE01C19/488G01D21/02Y02A30/60
Inventor 彭龙帆王永生徐小洋李纪昕刘浩
Owner CHINA CONSTR SECOND ENG BUREAU LTD