• Title/Summary/Keyword: 일반화된 역행주시

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A Model Study of Processing Methods of Seismic Refraction Data for Mapping Geological Discontinuities - GRM, GLI, Tomography (지질불연속면에 대한 탄성파 굴절법탐사 자료처리 고찰 - GRM, GLI, Tomography)

  • Kim, Ji-Soo;Kim, Su-Hyun;Lee, Jun-Ho;Kim, Won-Ki;Lee, Yong-Jae
    • The Journal of Engineering Geology
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    • v.16 no.4 s.50
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    • pp.327-335
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    • 2006
  • Three processing strategies of seismic refraction data are tested in terms of velocity and depth profiles or structures for mapping of geological discontinuities: GRM(generalized reciprocal method), GLI(generalized linear inversion), Tomography. The test data used in this study are the shot gathers reconstructed by numerical modeling for the structures of 3 planar layers(horizontal, inclined), the buried vertical fracture zones, and vertical fault zones. Tomography is shown to be very efficient for mapping of more complicated tone such as vertical fault and buried fracture zones, whereas GRM and GLI can be useful for horizontal and/or inclined layers, probably on their bases of analysis of first arrivals in travel time curves.