EVALUATION OF THE FINE FRACTION CONTENT USING ELECTRICAL LOGGING METHOD

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  • GAO Yuanhao
    Graduate School of Earth and Environmental Science Course of Earth and Environmental Science, Tokai Univ.
  • FUJII Mamoru
    Dept. of Architecture and Building Engineering, Tokai Univ.
  • MOCHIDA Yasuhide
    Dept. of Architecture and Urban Design, Ritsumeikan Univ.
  • TAKECHI Kotaro
    Ground Analysis Section, Japan Home Shield Co., Ltd.
  • ADACHI Yukio
    Control Systems Division, Nitto Seiko Co., Ltd.

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Other Title
  • 電気検層法による土の細粒分含有率の評価
  • デンキケンソウホウ ニ ヨル ツチ ノ サイリュウ ブン ガンユウリツ ノ ヒョウカ

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Abstract

SWS test is widely used as a research method to evaluate the residential sites. Advantage of SWS test is possible to evaluate the bearing capacity of residential sites. On the other hand, a disadvantage of SWS test is to determine soil and groundwater level. Suppose that if it is possible to incorporate the determination method of the soil by electrical resistivity using SWS test holes, a lot of information will be gained. As an ideal way, the electrical logging method by the electrode to the SWS test hole, is effective. Based on the above background, it was cleared that the evaluation of fine fraction content of soil was possible by electrical resistivity from the laboratory test. And the estimation equation was completed. In this study, field experiments of the six sites were performed to confirm the accuracy of the estimation equation from the laboratory test.

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