Volume 37, Issue 2 (March 2014)

    Determination of Geotechnical Properties of Anisotropic Rocks Using Some Index Tests

    (Received 28 April 2013; accepted 26 September 2013)

    Published Online: 2014

    CODEN: GTJOAD

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    Abstract

    To determine the geotechnical properties of anisotropic rocks, five types of various metamorphic rocks were selected from different parts of Hamedan province, west of Iran. These samples were subjected to mineralogical, physical, and mechanical laboratory tests and their behaviors were obtained at different angles between loading axis and foliation planes (anisotropy angle or β; 0°, 15°, 30°, 45°, 60°, 75°, and 90°). Based on the results, type, and amount of contained minerals have influence on the physical and mechanical properties of anisotropic tested rocks. Also, the Schmidt hardness (Hs) and mechanical properties of the samples, such as point load index (Is(50)) and Brazilian tensile strength (BTS) are affected by the anisotropy angle (β). In this research, the empirical equations relating different studied properties of the anisotropic rocks were obtained. In this regard, new equations were proposed for calculating point load index (Is(50)) and Brazilian tensile strength (BTS) in different angles of anisotropy (β).


    Author Information:

    Khanlari, Gholam Reza
    Geology Dept., Bu-Ali Sina Univ., Hamedan,

    Heidari, Mojtaba
    Geology Dept., Bu-Ali Sina Univ., Hamedan,

    Sepahi-Gero, Ali-Asghar
    Geology Dept., Bu-Ali Sina Univ., Hamedan,

    Fereidooni, Davood
    Student, Geology Dept., Bu-Ali Sina Univ., Hamedan,


    Stock #: GTJ20130078

    ISSN: 0149-6115

    DOI: 10.1520/GTJ20130078

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    Author
    Title Determination of Geotechnical Properties of Anisotropic Rocks Using Some Index Tests
    Symposium , 0000-00-00
    Committee D18