Method for evaluating damage conditions of asphalt pavement

An asphalt pavement and evaluation method technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc. Effect

Inactive Publication Date: 2018-03-20
NANJING ROAD KEEPER TECH
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Problems solved by technology

[0004] When evaluating the damage status of highway asphalt pavement, since three individual indicators are involved, when one of the evaluation indicators is particularly serious, no matter what evaluation model is used, it may be neutralized by other mild indicators. The severity of the evaluation system is reduced, and the objectivity and fairness of the evaluation are lost

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  • Method for evaluating damage conditions of asphalt pavement
  • Method for evaluating damage conditions of asphalt pavement
  • Method for evaluating damage conditions of asphalt pavement

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Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0055] When evaluating pavement performance, the selection of evaluation indicators should follow the principles of science, objectivity, strong operability, and clear purpose. The main evaluation indicators of asphalt pavement damage status are pavement transverse crack evaluation index TCEI, pavement repair status index PPCI and pavement surface damage status index PSCI. The pavement damage index PDCI is also calculated by weighting the sub-items, and the comprehensive evaluation model of pavement damage established is shown in formula (1):

[0056]

[0057] In the formula: PDCI——pavement damage condition index, used to evaluate the comprehensive condition of highway asphalt pavement damage;

[0058]TCEI——Pavement Transverse Crack Evaluation Index;

[0059] PPCI - Pavement Repai...

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Abstract

The invention relates to a method for evaluating damage conditions of an asphalt pavement. The method includes the following steps that firstly, pavement damage data is acquired; secondly, the transverse crack evaluation index (TCEI) of the pavement is calculated; thirdly, the pavement patching condition index (PPCI) is calculated; fourthly, the pavement surface damage condition index (PSCI) is calculated; fifthly, attribute weights of the three indexes are calculated by adopting an analytic hierarchy process; sixthly, grade weights of the three indexes are calculated by adopting an entropy method; seventhly, the comprehensive weight is obtained according to the attribute weights and the grade weights of the three indexes; eighthly, an evaluation model of the pavement damage condition index (PDCI) is established, and an evaluation result of the pavement damage condition is obtained according to the calculated the value of the PDCI. The method for evaluating the damage conditions of theasphalt pavement through a variable-weight comprehensive evaluation method is established, the dynamic weight of each evaluation index is calculated by combining the analytic hierarchy process and anentropy weight coefficient method, and the evaluation result is more accurate.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to an evaluation method for the damage condition of asphalt pavement. Background technique [0002] The three sub-indices of pavement transverse crack evaluation index TCEI, pavement repair condition index PPCI and pavement surface damage condition index PSCI can objectively reflect the damage degree of certain kinds of diseases on expressway asphalt pavement, and are used to guide the formulation of pavement maintenance decision-making schemes. However, in the evaluation of pavement maintenance quality, in addition to comparing the single damage condition of the pavement damage, it is also necessary to evaluate the comprehensive condition of the pavement damage to macroscopically evaluate the pavement damage condition. How to comprehensively evaluate the pavement damage is still the key problem that road maintenance managers need to solve. [0003] Comprehensive evaluatio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 周岚倪庆李小鹏汪平崔雯李刚
Owner NANJING ROAD KEEPER TECH
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