A construction method for laying asphalt on a ring road slope

Abstract

The invention discloses a construction method for laying asphalt on the inclined surface of a ring road, which includes the following steps: Prepare the survey work before paving the inclined surfaceof the ring road, Measure a cross section of the lower bearing layer of the pavement every 5m, At least 5 data point are measured in each cross-section from left to right, The steel wire control elevation is hung at two points on the left and right, the left and right points are the apex and bottom points of the loop slope, the reference inclined plane and the design slope of the annular inclinedplane are determined from these two points, Make sure that these two points of all cross sections are in the same plane, calculating the vertical distance of at least three points in the middle with respect to the reference inclined plane, and then averaging to obtain the average deviation of at least three points in the middle with respect to the reference inclined plane to be d, thereby adjusting the pre-camber of the ironing plate of the paver, wherein the adjusting height of the pre-camber of the ironing plate of the paver is L=d*loose paving coefficient; Ensure asphalt paving and rollingof high-speed loopway slopes to meet levelness requirements.

Description

technical field [0001] The invention belongs to the field of construction of a high-speed ring road at a test track, and in particular relates to a construction method for laying asphalt on a ring road slope. Background technique [0002] With the large-scale development of test track construction in my country, the traditional concrete pavement can no longer meet the high-precision requirements of the current test track road surface smoothness, while the technology and technology of asphalt pavement construction are becoming more and more mature. The asphalt pavement of the high-speed ring road at the Turpan test site of SAIC Volkswagen is the first special road with asphalt pavement in China. It is difficult to meet the smoothness requirements of the slope of the ring road by means of the method. The super-large slope of the high-speed ring road has a large slope and a long width. First, the lateral displacement of the mixture along the slope section during the rolling pro...

AI Technical Summary

Problems solved by technology

The asphalt pavement of the high-speed ring road at the Turpan test site of SAIC Volkswagen is the first special road with asphalt pavement in China. It is difficult to meet the smoothness requirements of the slope of the ring road by means of the method. The super-large slope of the high-speed ring road has a large slope and a long width. First, the lateral displacement of the mixture along the slope section during the rolling process of the road roller must be considered. Second, the rolling echelon of the road roller must be considered Combining the subsidence of the repeated rolling position, but there is no technical solution for improving the smoothness of the ring road in the prior art

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