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Estimating the Wet-Rock P-Wave Velocity from the Dry-Rock P-Wave Velocity for Pyroclastic Rocks

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Abstract

Seismic methods are widely used for the geotechnical investigations in volcanic areas or for the determination of the engineering properties of pyroclastic rocks in laboratory. Therefore, developing a relation between the wet- and dry-rock P-wave velocities will be helpful for engineers when evaluating the formation characteristics of pyroclastic rocks. To investigate the predictability of the wet-rock P-wave velocity from the dry-rock P-wave velocity for pyroclastic rocks P-wave velocity measurements were conducted on 27 different pyroclastic rocks. In addition, dry-rock S-wave velocity measurements were conducted. The test results were modeled using Gassmann’s and Wood’s theories and it was seen that estimates for saturated P-wave velocity from the theories fit well measured data. For samples having values of less and greater than 20%, practical equations were derived for reliably estimating wet-rock P-wave velocity as function of dry-rock P-wave velocity.

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Acknowledgements

This study has been supported by the Turkish Academy of Sciences (TUBA), in the framework of the Young Scientist Award Program (EA-TUBA-GEBIP/2001-1-1).

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Authors and Affiliations

  1. Mining Engineering Department, Hacettepe University, Ankara, Turkey

    Sair Kahraman

  2. Geological Engineering Department, Ankara University, Ankara, Turkey

    Mustafa Fener & Cumhur Ozcan Kilic

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  1. Sair Kahraman
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  2. Mustafa Fener
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  3. Cumhur Ozcan Kilic
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Correspondence to Sair Kahraman.

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Kahraman, S., Fener, M. & Kilic, C.O. Estimating the Wet-Rock P-Wave Velocity from the Dry-Rock P-Wave Velocity for Pyroclastic Rocks. Pure Appl. Geophys. 174, 2621–2629 (2017). https://doi.org/10.1007/s00024-017-1561-7

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  • DOI: https://doi.org/10.1007/s00024-017-1561-7

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