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Geostatistical Evaluation of the Mechanical Properties of Rock Mass for TBM Tunnelling by Seismic Reflection Method

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Summary.

The evaluation of the rock mass mechanical properties by the seismic reflection method and TBM driving is proposed for TBM tunnelling. The relationship between the reflection number derived from the three-dimensional seismic reflection method and the rock strength index (RSI) derived from TBM driving data is examined, and the methodology of conversion from the reflection number to the RSI is proposed. Furthermore a geostatistical prediction methodology to provide a three-dimensional geotechnical profile ahead of the tunnel face is proposed. The performance of this prediction method is verified by actual field data.

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References

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Authors and Affiliations

  1. Kyoto University, Kyoto, Japan

    K. Aoki & Y. Mito

  2. Kajima Corporation, Tokyo, Japan

    T. Yamamoto & S. Shirasagi

Authors
  1. K. Aoki
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  2. Y. Mito
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  3. T. Yamamoto
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  4. S. Shirasagi
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Aoki, K., Mito, Y., Yamamoto, T. et al. Geostatistical Evaluation of the Mechanical Properties of Rock Mass for TBM Tunnelling by Seismic Reflection Method. Rock Mech. Rock Engng. 40, 591–602 (2007). https://doi.org/10.1007/s00603-006-0121-8

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  • DOI: https://doi.org/10.1007/s00603-006-0121-8

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