STUDY ON DISPERSION OF LONGITUDINAL ELASTIC WAVES IN ROCK SPECIMENS

• NISHIYAMA Satoshi

  京都大学大学院 工学研究科

• OHNISHI Yuzo

  京都大学

• YANO Takao

  京都大学大学院 工学研究科

• TAKAHASHI Manabu

  産業技術総合研究所 地圏資源環境研究部門

• YOSHIMURA Kimitaka

  原子力発電環境整備機構

• ANDO Ken-ichi

  株式会社大林組

Bibliographic Information

Other Title

• 岩石供試体における弾性波の分散現象に関する研究

Abstract

 In order to estimate the permeable properties and pore fluid properties in the ground, survey methods using dispersion and attenuation of elastic waves have been developed. The Biot theory have been applied to the frequency-dependent dispersion data, but the influence of geological properties on velocity dispersion and the relation between the permeable properties and velocity dispersion in rock specimens have not become clear. Sedimentary rock and granite specimens were tested using longitudinal waves for the difference of velocity dispersion phenomena observed in each specimen, and we examine whether the Biot theory can be applied to observed experimental data. Moreover, we tried to estimate the permeability of the rock specimen based on the theory and show that the Biot-squirt theory can be applied to estimating rock permeability using the seismic wave dispersion characteristics.

Journal

• Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)

  Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering) 67 (2), 288-298, 2011

  Japan Society of Civil Engineers

Keywords

• longitudinal wave
• dispersion
• Biot theory
• squirt flow
• rock specimen
• permeability

Details

• CRID: 1390001205354666368
• NII Article ID: 130004559353
• DOI: 10.2208/jscejge.67.288
• ISSN: 21856516
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed