TY - JOUR
T1 - Tunnel detection using vibrating and impulsive seismic sources with a landstreamer
AU - Pugin, André J.M.
AU - Brewer, Kevin
AU - Cartwright, Timothy
AU - Sargent, Steven L.
N1 - Funding Information:
We are grateful to Kevin Cover at the city of Ottawa for providing information on the sewage tunnel. We thank Susan E. Pullan and Greg Oldenborger for reviewing the manuscript. This research has been supported by the GSC Groundwater Geoscience and Public Safety Geoscience activities.
Publisher Copyright:
© 2018 SEG.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - We present the results of two surveys showing that shear wave seismic reflection can image a sewage tunnel buried at 17 m in marine clay, and coalmine tunnels close to the bedrock surface beneath about 30 m of recent fluvial sediments. The SH shear wave seismic reflection method provides outstanding diffraction features only visible with transverse horizontal sources and recording capacities (H2,H2). These data were acquired using an impulsive or a broader band vibrating source coupled with a landstreamer. The use of SV vertical shear and PP compressive waves extracted from data acquired with vertical vibrating source and receiver mode (V,V) did not give satisfying results for locating tunnels in these environments.
AB - We present the results of two surveys showing that shear wave seismic reflection can image a sewage tunnel buried at 17 m in marine clay, and coalmine tunnels close to the bedrock surface beneath about 30 m of recent fluvial sediments. The SH shear wave seismic reflection method provides outstanding diffraction features only visible with transverse horizontal sources and recording capacities (H2,H2). These data were acquired using an impulsive or a broader band vibrating source coupled with a landstreamer. The use of SV vertical shear and PP compressive waves extracted from data acquired with vertical vibrating source and receiver mode (V,V) did not give satisfying results for locating tunnels in these environments.
KW - ISGS
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U2 - 10.1190/segam2018-2995013.1
DO - 10.1190/segam2018-2995013.1
M3 - Conference article
SN - 1052-3812
SP - 2667
EP - 2671
JO - SEG Technical Program Expanded Abstracts
JF - SEG Technical Program Expanded Abstracts
T2 - Society of Exploration Geophysicists International Exposition and 88th Annual Meeting, SEG 2018
Y2 - 14 October 2018 through 19 October 2018
ER -