Research and Application of GPR in Detection of Heating Pipelines on Complex Highway

Abstract

Based on test principle of ground penetrating radar (GPR), the application feasibility for detecting the heating pipelines on complex highway is verified. In accordance with the complex highway in Wangjing region of Beijing city in China, by using ground penetrating radar of SIR-20 to monitor the geological situation of construction surface, the plain position of pipeline and the buried depth, the detection shows that: the objects of bigger relative dielectric constant absorbs the electromagnetic wave signal from periphery; the maximum intensity of reflection radar wave appears at the top of pipeline; the arc width in radar wave image produced by the bottom of pipeline is bigger than the top. Based on these studies, the design program and accident removal countermeasures for the detection of complex highway pipeline are proposed. Meanwhile, combining with actual measurement in field, contrives scheme utilizing ground penetrating radar to detect heating pipelines. It could be verified the feasibility of testing heating pipelines with ground penetrating radar, provides a basis for the subsequent security dynamic construction design, and accumulates some experience for ground penetrating radar detecting pipeline on complex highway.