基于倾斜摄影测量技术的沥青混凝土层厚度检测方法

Asphalt concrete layer thickness detection method based on tilt photogrammetry technology

以江苏省徐州市某新建市政道路为例,利用无人机倾斜摄影测量技术实施了沥青混凝土层厚度无损检测.通过合理规划飞行方案、内业处理、对两期道路数字高程模型进一步加工,分别获得施工场地高清航片、道路路面数字高程模型、沥青混凝土层厚度的数字模型,并在此基础上进一步丰富了检测结果的表达形式.结果表明:基于无人机倾斜摄影测量技术的道路沥青混凝土层厚度检测方法检测精度高,范围覆盖全,工作强度低,相比传统检测技术,可显著提升检测质量和效率.

Taking a new municipal road in Xuzhou,Jiangsu Province as an example,a nondestructive test on the thickness of asphalt concrete layer is carried out by using UAV tilt photogrammetry technology.Through the reasonable planning of flight scheme,office processing and further processing of the two-phase road digital elevation model,the high-definition aerial film of the construction site,the digital elevation model of road pavement and the digital model of asphalt concrete layer thickness were obtained respectively,and on this basis,the expression form of detection results was further enriched.The results show that the road asphalt concrete layer thickness detection method based on UAV tilt photogrammetry technology has the advantages of high detection accuracy,full coverage and low working intensity.Compared with the traditional detection technology,it can significantly improve the detection quality and efficiency.