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Seismic prediction ahead of tunnel construction using Rayleigh-waves

Jetschny, Stefan; De Nil, Denise; Bohlen, Thomas

Abstract:
To increase safety and efficiency of tunnel constructions, online seismic exploration ahead of a tunnel can become a valuable tool. We developed a new forward looking seismic imaging technique e.g. to determine weak and water bearing zones ahead of the constructions. Our approach is based on the excitation and registration of tunnel surface-waves. These waves are excited at the tunnel face behind the cutter head of a tunnel boring machine and travel into drilling direction. Arriving at the front face they generate body-waves propagating further ahead. Reflected S-waves are back-converted into tunnel surface-waves.


Zugehörige Institution(en) am KIT Geophysikalisches Institut (GPI)
Publikationstyp Proceedingsbeitrag
Jahr 2008
Sprache Englisch
Identifikator ISBN: 978-1-60560-474-9
URN: urn:nbn:de:swb:90-288428
KITopen ID: 1000028842
Erschienen in 70th European Association of Geoscientists and Engineers conference & exhibition incorporating SPE EUROPEC 2008, June 9 - 12, 2008, Rome, Italy; Vol. 5
Verlag Curran, Red Hook (NY)
Seiten 2949-2953
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