邻近地铁车站道路路面病害的调查与评价——以福州地铁1号线为例

Investigation and evaluation of pavement diseases of roads adjacent to metro stations:taking Fuzhou Subway Line 1 as an example

为研究地铁车站建设对邻近道路的影响,采用数字化路面数据采集车(DHDV),对地铁1号线车站上方路面病害进行扫描,根据图形尺寸比例关系计算了站内与站外的路面高差、裂缝长度以及路面行驶质量指标,并利用电子地图技术对路面病害站内外分布情况进行统计,分析了路面病害与地铁车站的关联性。研究结果表明:地铁车站建设加剧了附近道路的路基沉陷和裂缝产生,道路维养措施应作相应调整;用DHDV和电子地图相结合的方法调查道路病害几何特征值及其分布,工作效率和计算精度高,可为道路维养决策和路面病害机理研究提供依据。

In order to investigate the influence of metro station construction on adjacent roads,field scanning of pavements above stations of Fuzhou Metro Line No.1 was conducted with a digital highway data vehicle(DHDV).Then pavement elevation difference,crack length and driving quality indices were calculated according to the dimensional proportions of the graphics.In the end,the correlation between pavement diseases and metro station was analyzed on the basis of pavement diseases’distribution statistical data that were processed by digital map technology.Research results show that the construction of the metro station has increased the subgrade settlement and crack generation of the nearby road,and the road maintenance measures shall be adjusted accordingly.The proposed method involving both DHDV and digital map is so efficient and precise for investigating pavement diseases’geometry characteristic values and distribution that it could be used for reference by road maintenance and repair decision-making as well as pavement diseases’mechanism research.