ISSN 1004-4140
CN 11-3017/P
Volume 23 Issue 1
Feb.  2014
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GUO Shu-jun, HOU Yan-hua, LI Hong-li, LEI Ming, LIU Wen-zeng. The Application of Seismic CT Technology in Urban Geological Survey[J]. CT Theory and Applications, 2014, 23(1): 81-90.
Citation: GUO Shu-jun, HOU Yan-hua, LI Hong-li, LEI Ming, LIU Wen-zeng. The Application of Seismic CT Technology in Urban Geological Survey[J]. CT Theory and Applications, 2014, 23(1): 81-90.
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The Application of Seismic CT Technology in Urban Geological Survey

  • 1. Center for Hydrogeology and Environmental Geology Survey, CGS, Baoding 071051, China;

  • 2. China Power Investment International Mineral & Investment Co., Ltd., Beijing 100025, China;

  • 3. China University of Mining and Technology, XuZhou 221000, China

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  • Received Date: June 02, 2013
  • Available Online: December 09, 2022
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    • Abstract
  • In order to successfully apply seismic computerized tomography(CT),at first,the author used cross-hole imaging method to get the first break travel time data.Then,on the processing basis of curved ray-tracing forward modeling based on shortest path method and inversion technique based on LSQR algorithm,combined with well logging data interpretation,the author got the cross-hole wave velocity distribution maps.Thus,within the scope of well control,the stratum structure and the foundation grouting effect were studied.Also,the locations and distributions of fracture tectonic belt and people shelter were gotten.This result shows that when seismic CT is used in urban environmental geological survey and evaluation and shallow engineering geological investigation,it can solve the complexity of formation lithology and structure and accurately predict the target environment.Seismic CT plays an important role in urban environmental geology research and in the construction of infrastructure and has important significance to promote the development of urban geophysical prospecting technique.
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