Land and Housing Review (토지주택연구)

Land and Housing Research Institute (한국토지주택공사 토지주택연구원)
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A Comparative Study on Borehole Seismic Test Methods for Site Classification

  • Jung, Jong-Suk (Land and Housing Institute, Korea Land and Housing Corporation) ;
  • Sim, Youngjong (Land and Housing Institute, Korea Land and Housing Corporation) ;
  • Park, Jong-Bae (Land and Housing Institute, Korea Land and Housing Corporation) ;
  • Park, Yong-Boo (Land and Housing Institute, Korea Land and Housing Corporation)
  • Received : 2012.09.24
  • Accepted : 2012.10.25
  • Published : 2012.10.30
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Abstract

In this study, crosshole seismic test, donwhole seismic test, SPT uphole test, and suspension PS logging (SPS logging) were conducted and the shear wave velocities of these tests were compared. The test demonstrated the following result: Downhole tests showed similar results compared to those of crosshole tests, which is known to be relatively accurate. SPS logging showed reliable results in the case of no casing, i.e. in the rock mass, while, in the case of soil ground, its values were lower or higher than those of other tests. SPT-uphole tests showed similar results in the soil ground and upper area of rock mass compared to other methods. However, reliable results could not be obtained from these tests because SPT sampler could not penetrate into the rock mass for the tests.

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References

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