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Evaluation method of road driving quality in soft soil area

A quality evaluation, regional technology, applied in measurement devices, height/level measurement, material analysis by optical means, etc., can solve problems such as poor adaptability, achieve high precision, avoid interference factors, and high reliability.

Active Publication Date: 2019-04-23
云途信息科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for evaluating road surface quality in soft soil areas with good adaptability in order to overcome the shortcomings of the poor adaptability of the international smoothness detection method in the prior art

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  • Evaluation method of road driving quality in soft soil area
  • Evaluation method of road driving quality in soft soil area
  • Evaluation method of road driving quality in soft soil area

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0052] like figure 1 The embodiment is a kind of road quality evaluation method in soft soil area, figure 1 Including people and seat 1, vehicle frame 2, front tire 3, rear tire 4 and road surface 5; comprise the following steps:

[0053] like figure 2 As shown, in step 100, collecting road vehicle trajectory line surface elevation data, fitting the vertical alignment;

[0054] Use the on-board laser instrument to detect the elevation data of the highway track after the settlement, and use the cubic spline interpolation method to fit the vertical line shape;

[0055] Use the on-board laser instrument to detect and evaluate the road surface elevation data (x k ,y k)(k=0,1,...,n), where x k is the mileage stake number, y k is the road elevation. Data vertical spacing h k =x k+1 -x k , h k = 1m, using the cubic spline interpolation me...

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Abstract

The present invention discloses a soft soil area pavement driving quality evaluation method. According to the present invention, the highway pavement elevation data after settlement is detected by using a vehicle-mounted laser instrument, vertical weighted acceleration root mean square values are calculated, the ratio of road lengths having the weighted acceleration root mean square values within each comfortable degree range in each kilometer is counted, a driving comfort index DCI and a driving quality index RQI are calculated according to the ratio, and the driving quality can be evaluated according to the RQI; and the soft soil area pavement driving quality evaluation method has characteristics of wide application range, and high reliability and high precision of the evaluation result.

Description

technical field [0001] The invention relates to the technical field of highway road surface running quality evaluation, in particular to a method for evaluating road surface running quality in soft soil areas with good adaptability. Background technique [0002] Road users have different driving quality requirements or driving comfort expectations for different grades of roads (driving speed). Generally, the driving quality or driving comfort is closely related to the roughness of the road surface. The current "Highway Technical Condition Evaluation Standard" (JTG H20-2007) adopts the method of converting the international roughness index IRI into the road driving quality index RQI to evaluate road driving quality. The quality is evaluated and graded, which is an important reference for road maintenance decision-making. [0003] A large amount of soft soil is distributed in the southeast coast of my country. Due to the consolidation and sub-consolidation characteristics of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17G01B11/30G01C5/00
CPCG01B11/30G01C5/00G01N21/17
Inventor 姜正晖陈仁朋贾瑞雨
Owner 云途信息科技(杭州)有限公司