高速公路长期性能观测及发展规律研究

Study on Long-Term Performance Observation and Evolution Law of Expressways

摘要:

为探讨研究高速公路长期服役下的性能发展规律，通过对野外观测站长期观测数据的统计分析，总结气象环境、路面性能指标的发展规律及相关性，建立路面关键指标发展模型，形成路面关键性能预测方法。研究结果表明，江苏省夏季高温与冬季低温对路面横向裂缝及车辙病害的形成和发展起到关键作用，基于发展特征建立的关键指标发展模型可较好地反映路面服役性能的发展，并科学预测未来路面发展情况。研究成果为高速公路养护决策提供有价值的参考价值。

Abstract:

To explore the performance evolution law of expressways under long-term service, the statistical analysis is conducted on long-term observation data from field stations. The evolution laws and correlations between meteorological conditions and pavement performance indicators are summarized, the evolution models for key pavement indicators are established, and a prediction method for critical pavement performance is proposed. The results show that high temperatures in summer and low temperatures in winter in Jiangsu Province play a key role in the formation and evolution of transverse cracks and rutting distresses in pavement. The evolution models of key indicators established based on evolution characteristics can satisfactorily reflect the evolution of pavement service performance and scientifically predict the future pavement evolution conditions. The research findings provide a valuable reference for expressway maintenance decision-making.