Bituminous pavement track field evaluation method

An evaluation method, asphalt pavement technology, applied in the direction of roads, roads, road repairs, etc., can solve the problems of small rut damage area, inability to reflect the distribution of rut depth, the scope of rut disease influence and the guidance of the amount of repair work, etc. , to achieve the effect of avoiding one-sidedness

Inactive Publication Date: 2013-09-18
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented evaluating system for assessing damage from paving materials such as bituminous concrete or crushed stone during construction on roads has been improved accuracy compared to existing methods that only estimate how much it will break down without being able to predict when they may be damaging themselves over time due to factors like temperature changes or traffic loadings.

Problems solved by technology

This patented describes an important aspect about how well roads have been designed with improved resistance against wear caused from heavy loads such as vehicular tires (TR). These measures aim to improve durability without compromising their functioning under extreme conditions like winter weather. Additionally, these techniques help predict future road maintenance needs based upon past performance indicators. By analyzing the degree of ruthiness present at specific locations along the route, the technique helps identify areas where severe damage may occur during rain events while minimizing any unnecessary repairs. Overall, these improvements enhance efficiency and effectiveness of road construction projects.

Method used

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  • Bituminous pavement track field evaluation method
  • Bituminous pavement track field evaluation method
  • Bituminous pavement track field evaluation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] See figure 1 . figure 1 It is not drawn in a 1:1 scale, mainly due to the limitation of paper specifications, it is only a schematic diagram of the cross section of the rut. D1=13.9mm, D2=12.2mm, then the maximum rut depth of this section is d4=12.5mm. By counting the grid paper, it is found that there are 16153 full grids and 8760 half grids in total, and the rut deformation area is A4=20533mm2.

Embodiment 2

[0064] See figure 2 . figure 2 It is not drawn in a 1:1 scale, mainly due to the limitation of paper specifications, it is only a schematic diagram of the cross section of the rut. D1=10.8mm, D2=11.9mm, then the maximum rut depth of this section is d11=11.9mm. By counting the grid paper, it is found that there are 16515 full grids and 12476 half grids in total, and the rut deformation area is A11=22753mm2.

Embodiment 3

[0066] See image 3 . image 3 It is not drawn in a 1:1 scale, mainly due to the limitation of paper specifications, it is only a schematic diagram of the cross section of the rut. D=9.8mm, then the maximum rut depth of this section is d17=9.8mm. By counting the grid paper, it is found that there are 14875 full grids and 6966 half grids in total, and the rut deformation area is A17=18358mm2.

[0067] The evaluation of other sections adopts the same method, and the final rutting evaluation results of this road section are shown in Table 1 below:

[0068] Table 1

[0069]

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Abstract

The invention relates to a bituminous pavement track field evaluation method which comprises the following steps: A, performing field track survey, namely (1) selecting a road section to be evaluated; (2) testing the track depth; and B, calculating and settling the measurement result: (1) drawing a cross-section profile and a top datum line of each lane on the section line according to a ratio of 1:1; (2) determining the track depths D1 and D2 on the drawings, and reading to 1mm, wherein the maximum value serves as the maximum track depth of the section; (3) working out the mean value of the maximum track depth of each measured section to serve as the mean track depth of the evaluated road section; (4) determining the track deformation area of each section by employing a grid method, and determining the track deformation area of the evaluated road section through a formula; and (5) calculating the track repair engineering quantity between certain adjacent sections through the formula Vi+1=(Ai+Ai+1)*Di+1/2, and calculating the repair engineering quantity of the whole road section. The field track diseases can be objectively evaluated and reliable basis is provided for determining the track maintenance and repair engineering quantity.

Description

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Claims

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Application Information

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Owner SHANXI PROVINCIAL RES INST OF COMM
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