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Combined type pavement usability performance evaluation method for underground road

A technology of composite pavement and underground road, applied in the field of performance evaluation of composite pavement of underground roads

Active Publication Date: 2012-09-12
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing method to deal with uncertain factors in pavement analysis is the probability and statistics method, but in many cases randomness and ambiguity coexist
There are no reports of a combination of the two

Method used

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  • Combined type pavement usability performance evaluation method for underground road
  • Combined type pavement usability performance evaluation method for underground road
  • Combined type pavement usability performance evaluation method for underground road

Examples

Experimental program
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[0083] In 2008, there are 20 indicators of the service performance of an underground road composite pavement. They are: road condition index x i1 ={x i |i=1,2,...,20}=(82.4, 76.7, 71.3, 72.3, 73.7, 40.8, 39.0, 67.0, 58.9, 71.2, 73.3, 62.1, 72.8, 78.0, 64.4, 60.7, 84.3, 74.3, 72.4 , 61.1); ride quality index x i2 ={x i |i=1,2,...,20}=(94.8, 96.1, 94.894.594.3, 93.5, 93.6, 93.8, 94.7, 92.6, 90.0, 92.9, 94.8, 96.3, 94.9, 95.2, 95.3, 94.3, 95.7, 96.3 ); pavement structural strength index x i3 ={x i |i=1,2,...,20}=(45.4, 75.1, 82.5, 76.6, 89.7, 47.3, 58.7, 66.6, 79.4, 70.8, 57.4, 49.3, 45.3, 57.3, 51.8, 59.1, 78.8, 44.8, 64.6 , 35.7); skid resistance performance index x i4 ={x i |i=1,2,...,20}=(90.20, 66.00, 66.73, 73.78, 74.73, 69.50, 75.01, 66.72, 69.05, 63.25, 66.54, 75.52, 73.02, 71.83, 65.63, 68.74, 69.11, 68.49, 69.1 , 66.83)

[0084] According to the requirement grouping number m=6 of frequency histogram way in the probability statistics, promptly divide interval i...

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Abstract

The invention relates to a road usability performance evaluation technology, in particular to a combined type pavement usability performance evaluation method for an underground road, which can combine randomnesss with fuzzification and can accurately evaluate road condition. In order to realize the aims, according to the technical scheme adopted by the invention, the combined type pavement usability performance evaluation method for the underground road comprises the following steps: collecting the following road condition indexes: PCI (pavement condition index), RQI (riding quality index), PSSI (pavement structure strength index) and SRI (skid resistance index); computing information distribution values at sample points; computing fuzzy probability distribution of pavement usability performance in the probability theory field; confirming fuzzy and random risks of the pavement usability performance in regions; computing comprehensive fuzzy and random risk level of the pavement usability performance; outputting a module through data; and judging level of pavement usability performance evaluation. The combined type pavement usability performance evaluation method provided by the invention is mainly applied to the road usability performance evaluation.

Description

technical field [0001] The invention relates to a road use performance evaluation technology, in particular to a method for evaluating the use performance of an underground road compound pavement. Background technique [0002] The evaluation of pavement performance has always been a problem that the traffic management department attaches great importance to. When the performance of the pavement is reduced to a certain standard, corresponding maintenance and reconstruction measures must be taken to restore and improve its performance. In order to choose the best maintenance strategy, the highway maintenance management department must know the usage status of the road surface in a timely and accurate manner, and make scientific judgments and predictions, so as to know when to take which corresponding measures. [0003] The existing method to deal with the uncertain factors in pavement analysis is the method of probability and statistics, but randomness and fuzziness coexist i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00G06F17/18
Inventor 王海燕王晓华马士宾邢锦张彩利娄中波郑利赵巍刘治国康娟萍
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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