CCTV和探地雷达技术在城市道路病害中的应用

CCTV and Ground-penetrating Radar in Urban Underground Probem Detection

与传统的排水管道检测相比,CCTV管道检测技术有着图像清晰直观、可探管径范围大、安全性能高等优势。可以清晰的判断环向和管道延伸方向缺陷的位置,但是在管道外壁却不能准确的判断缺陷的形态、大小、延伸长度等病害状况。两种方法相结合可以更好地为城市道路病害的预警、修复等工作提供依据。

Compared with traditional drainage pipeline inspection,Closed Circuit Television technology has the advantages of clear and intuitive images,large diameter range and high safety performance.CCTV can be clearly determined the position of circumferential direction and extension of pipeline defect.but it can't be clearly determined the Shape,size,extension length of the pipeline defect.Combines the two methods together can better pr ovide the basisfor urban underground probem Early warning and r epair.