按路面结构强度衰减的预防性养护措施效果评价

在广东省某高速公路上的一些试验段采取了三种雾封层措施以及微表处理和NovaChil(R)两种罩面措施,根据2004年和2006年两次FWD检测结果,采用t检验、秩和检验、方差分析和多重比较的方法对弯沉衰减数据进行了分析.结果表明,对于延缓路面结构强度衰减而言,三种雾封层措施和微表处理措施效果明显,而NovaChip(R)的效果较弱;相对于CAP、HAP和微表处理,沥再生的效果较弱,而前三者的效果之间并无明显差别;上述的数据分析方法适用于预防性养护措施的效果评价.

Evaluating the Effect of Preventive Maintenance Treatments Based on Strength Decay of Road Structure

Three kinds of fog seal treatments including Rejuvaseal, CAP and HAP, as well as two kinds of overlay treatments including Micro-surfacing and Novachip had been taken on a highway in Guangdong province. According to FWD investigation in 2004 years and 2006 years, t-test, rank sum test, analysis of variance and multiple comparison method are used to analysis the decay of deflection. The results show that, for delaying the strength decay of road structure, the three fog seal treatments and Micro-surfacing have significantly effect, but Novachip is poor; and the effect of Rejuvaseal is weaker than CAP, HAP and Micro-surfacing, and there is no obvious difference among the last three treatments; and the above-mentioned data analytical methods are suitable for evaluating the effect of preventive maintenance treatments.