广东省普通国省道典型路面结构衰变规律及养护技术

发布时间：2018-02-25 17:00

本文关键词： 道路工程养护技术回归分析普通国省道路面状况性能预测　出处：《公路交通科技》2017年08期 　论文类型：期刊论文

【摘要】：针对广东省普通国省道路面质量指数(PQI)、路况指数(PCI)、行驶质量指数(RQI)和车辙深度指数(RDI)等指标,研究了典型路面结构的路况衰变规律,分析了路面养护指标与使用年限的相关性关系,提出了水泥路面的二次型衰变模型和沥青路面的三折线衰变模型。通过历年数据分析表明:旧水泥路面加铺5 cm及以下沥青面层是短期提高路面技术指标的养护措施;旧水泥混凝土路面加铺8~10 cm沥青面层可有效提高路面技术指标,减缓反射裂缝的产生,是水泥路面养护投资最少的养护措施;旧水泥路面破碎后加铺新水泥混凝土的养护方案,适用于重载交通或公路纵坡较大的路面改造;原沥青路面铣刨后加铺新沥青面层,路面使用到第4年,路况指标由优等状态发展为良等状态,是实施预防性养护的最佳时机。
[Abstract]:Aiming at the indexes of road surface quality index (PQI), road condition index (PCI), driving mass index (RQI) and rutting depth index (RDI), the road condition decay law of typical pavement structure is studied in Guangdong Province, such as road quality index (PQI), road condition index (PCI), road quality index (RQI) and rutting depth index. The relationship between pavement maintenance index and service life is analyzed. The secondary decay model of cement pavement and the triple-line decay model of asphalt pavement are put forward. Through the analysis of data over the years, it is shown that the overlay of old cement pavement with asphalt surface of 5 cm or less is the maintenance measure to improve the technical index of pavement in a short time. The overlay of 8 ~ 10 cm asphalt surface of old cement concrete pavement can effectively improve the technical index of pavement and slow down the occurrence of reflective cracks, which is the least maintenance measure for cement pavement maintenance, and the maintenance scheme of adding new cement concrete after old cement pavement is broken, It is suitable for the pavement reconstruction of heavy load traffic or large longitudinal slope of highway. After milling and planing the original asphalt pavement and adding new asphalt surface, the road condition index develops from excellent condition to good condition in the fourth year, which is the best time to implement preventive maintenance.
【作者单位】：广东省公路管理局;中公高科养护科技股份有限公司;
【分类号】：U418.6

【参考文献】