Application of Integrated Geophysical Exploration Methods to Detecting Underground Tunnel

摘要

Taking the underground ancient tunnel of Tangshan new culture square in Hebei province for example,this paper utilizes an integrated geophysical exploration method of shallow seismic reflection wave method and transient electromagnetic method to do the research of detecting ancient underground tunnels.It makes full use of shallow seismic reflection wave method with great detecting depth,high longitudinal resolution,precise and effective superiority and the transient electromagnetic method with a strong anti-interference ability,the high transverse resolution,little impacted by terrain,not restriction by grounding conditions and other characteristics.It has established a very comprehensive combined model,summarized the anomaly comprehensive characteristics of the underground ancient tunnel and detected the site and distribution of two ancient tunnels.Finally,through drilling which has tested effectively that the comprehensive integrated geophysical exploration is useful and can be taked as an reference.