刍议预防性养护措施延长路面面层使用寿命

Preventive maintenance measures prolong the service life of road surface

我国南北区域气候不同,病害类型稍有不同,南部夏季高温炎热,沥青路面需要考虑较好的高温稳定性能;北部冬季寒冷,沥青路面需要考虑较好的低温开裂性能,而目前的维修养护方案并未充分考虑此点,通过分析预防性养护措施延长路面面层使用寿命的研究内容,得出结论如下:现行国检主要评判依据为《公路技术状况评定标准》(JTG H20—2007)中相关路面性能指标,大部分指标也只针对表层进行评价。实际上制定技术方案及工程实施,应结合更全面、更科学的技术指标对路况整体进行分析,从而制定更高效的养护措施,保证路面在3~5年不进行养护修复且各项性能指标达到较高水平。

The regional climate is different in the north and south of China,and the disease type is slightly different.In the south,it is hot in summer,and the asphalt pavement needs to consider better high temperature stability.In the cold winter in the north,asphalt pavement needs to consider better low~temperature cracking performance,but the current maintenance plan does not fully consider this point,this paper analyzes the research content of prolonging the service life of pavement surface by preventive maintenance measures.The conclusion is as follows:the main evaluation basis of the current national inspection is related to the road performance indexes in the Highway Technical Condition Assessment Standard(JTG H20—2007),and most of the indexes are only for the surface evaluation.In fact,the formulation of technical plans and engineering implementation should be combined with more comprehensive and scientific technical indicators on the overall analysis of the road condition,so as to formulate more efficient maintenance measures to ensure that the road will not be repaired within 3~5 years and the performance indicators reach a higher level.