关键词: 地下管线, 地球物理探测, 直流电法, 电磁感应, 地质雷达

Abstract: The underground pipeline is the lifeline of city. Detecting and surveying of the underground pipelines are basic work for urban planning, construction and management. It's prerequisite to understand the distribution of underground pipelines in the construction area for ensuring the safety of pipelines. Currently, DC electrical method, electromagnetic induction and ground penetrating radar are most widely used in engineering projects. Combined with engineering projects, the principles and characteristics of the three major methods are introduced and analysised. The problems and development trends of pipeline detection technology are summarized.

Key words: underground pipeline, geophysical exploration, DC electrical method, electromagnetic induction, ground penetrating radar