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Time-lapse 3-dimensional Seismic Study to Evaluate the Effect of Ground Reenforcement  

Lee, Doo-Sung (Information System Engineering, Hansung University)
Publication Information
Geophysics and Geophysical Exploration / v.5, no.3, 2002 , pp. 141-144 More about this Journal
Abstract
Three-dimensional seismic data, recorded with an interval of one year, indicate a velocity changes in the medium at the near surface. During that period of a year, the ground reinforcement work has been conducted at the railroad base in the study area. The time-thickness to the first reflector of the two data were picked and compared. The result showed that the velocity of the medium decreased at large part of the study area; however, no velocity decrease at the railroad base.
Keywords
3-D seismic; Ground reenforcement; Ground subsidence;
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