Network-level flexible pavement structural evaluation

被引：7

作者：

Gedafa, Daba S. ^{[1
]}

Hossain, Mustaque ^{[2
]}

Miller, Richard ^{[3
]}

Van, Thomas ^{[4
]}

机构：

[1] Univ N Dakota, Dept Civil Engn, Grand Forks, ND 58201 USA

[2] Kansas State Univ, Dept Civil Engn, Manhattan, KS 66506 USA

[3] Kansas Dept Transportat, Topeka, KS USA

[4] Fed Highway Adm, Washington, DC 20591 USA

来源：

INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING | 2014年 / 15卷 / 04期

关键词：

network-level; flexible pavement; structural number; structural evaluation;

D O I：

10.1080/10298436.2013.784766

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The Kansas Department of Transportation has a comprehensive pavement management system known as network optimisation system (NOS). Annual condition surveys are conducted for NOS. Currently, the structural number (SN) of flexible pavements is computed using the American association of state highway and transportation officials equation based on the centre and fifth sensor deflections of a falling weight deflectometer (FWD). However, a rolling wheel deflectometer (RWD) can be used to collect deflection data at the network-level. This study was conducted to see whether the SN of flexible pavements can be obtained from this RWD deflection and NOS condition survey results. In this study, FWD deflection data, collected from 1998 to 2006, were analysed. Multiple regression analysis was done. The results showed that there is a negative relationship between SN and centre deflection. Equations can be used to calculate SN based on FWD (or RWD) centre deflections and network-level condition survey results. The SN is more sensitive to centre deflection than the total pavement thickness.

引用

页码：309 / 322

页数：14

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