Application of GPR Underground Pipeline Detection Technology in Urban Complex Geological Environments

Table 2

Location of underground pipelines in section β.

Line number	β-1	β-2	β-3	β-4
The top of the underground pipeline is at the horizontal position of the survey line (m)	3.554	1.796	3.493	0.963
The underground pipeline is located at the horizontal position of the survey line (m)	2.732 to 3.930	1.472 to 2.446	3.022 to 3.895	0.569 to 1.450
Buried depth of underground pipeline from ground (m)	0.909	1.204	1.258	1.646
Underground pipeline width (m)	1.199	1.075	0.874	0.882