摘要
针对现行《公路技术状况评定标准》(JTG 5210—2018)未区分沥青路面11大类损坏类型对路面损坏的影响程度、赋予各类损坏类型固定权重问题,通过对多条不同高速公路路面损坏状况检测结果统计分析表明,对路面损坏影响程度较大的主要有龟裂、块状裂缝、纵向裂缝、横向裂缝、坑槽、松散等,采用客观赋权法根据贡献程度依次对各种损坏类型赋予不同权重,有效地区分了其对路面损坏状况的影响程度。据此权重修正的方法计算路面损坏状况指数PCI表明,该结果不仅更加真实地反映了路面损坏程度,还揭示了修正前评定标准计算方法隐藏的破损严重的路段,有利于提高路面预防性养护的针对性及准确性,可为评定标准的修订提供参考。
In response to the current Highway Performance Assessment Standards(JTG 5210-2018),which does not distinguish the impact of 11 major types of damage on asphalt pavement and assign fixed weights to various types of damage,statistical analysis of the detection results of pavement damage on multiple different highways shows that the main factors that have a significant impact on pavement damage are cracking,blocky cracks,longitudinal cracks,transverse cracks,potholes,looseness,etc.The objective weighting method is used to assign different weights to various types of damage based on their contribution level,effectively distinguishing their impact on the condition of road damage.The calculation of the pavement damage index PCI based on the weight correction method shows that the result more accurately reflects the degree of pavement damage,and also reveals the severely damaged road sections hidden in the calculation method of the evaluation standard before correction,which is beneficial for improving the pertinence and accuracy of pavement preventive maintenance and can provide reference for the revision of the evaluation standard.
作者
郭柏林
GUO Bolin(Guangdong Transportation Technology Testing Co.,Ltd.,Guangzhou 510550)
出处
《公路交通技术》
2023年第5期61-66,共6页
Technology of Highway and Transport
关键词
病害
权重修正
客观赋权法
路面损坏状况指数
disease
revised weight
objective weight assignment
pavement surface condition index
