常州市239省道路面养护改造处治方案研究

Study on schemes of pavement maintenance and reconstruction for provincial road 239 in Changzhou

文章以常州市239省道路面大修工程中的沥青路面的养护改造为例,采用人工调查旧沥青路面的病害,通过路面状况指数(PCI)、用路面结构强度指数(PSSI)、路面行驶质量指数(RQI)、路面车辙深度指数(RDI)对路面进行评价,并结合病害严重区域的钻芯取样分析病害产生的原因。根据调查与分析结果,针对不同情况,提出了不同的养护改造方案,为旧沥青路面的处治提供参考。

This paper takes the heavy maintenance project of provincial road 239 in Changzhou as an example, artificial investigation based on asphalt pavement distresses, pavement condition index （PCI）, pavement structural strength index （PSSI） and pavement quality index （RQI） was conducted to evaluate the pavement condition. Combined with core sampling in the serious damaged area, the causes of the distresses were analyzed. According to the results of investigation and analytical results under different situations, the corresponding schemes of maintenance and reconstruction for the old asphalt pavement was put forward respectively, which provided a valuable reference to the treatment of the deteriorated pavement.