HUBUNGAN ANTARA CEPAT RAMBAT GELOMBANG ULTRASONIK DENGAN KUAT TEKAN UNIAKSIAL PADA TAMBANG BATUBARA DI DESA MUTIARA, KECAMATAN SAMBOJA, KABUPATEN KUTAI KARTANEGARA, PROVINSI KALIMANTAN TIMUR

DANANG , PRAKOSA (2013) HUBUNGAN ANTARA CEPAT RAMBAT GELOMBANG ULTRASONIK DENGAN KUAT TEKAN UNIAKSIAL PADA TAMBANG BATUBARA DI DESA MUTIARA, KECAMATAN SAMBOJA, KABUPATEN KUTAI KARTANEGARA, PROVINSI KALIMANTAN TIMUR. Other thesis, UPN "Veteran" Yogyakarta.

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    Abstract

    The research about mechanical behavior of rock conducted at Mutiara village, Samboja district, Kutai Kartanegara region, East Borneo province. In the rock’s mechanical behaviors there are static mechanical behaviour and dynamic mechanical behavior. Static mechanical behavior can be known by conducting uniaxial test whereas the other can be known by conducting ultrasonic velocity test. Some of lithology tested are : clay, coallyclay, silt, coal, and sand. By conducting all those test we can get period time for each lithologi (T ), Velocity of primer wave (V p ), Uniaxial Compression Strength ( ), Poisson ratio () and Young modulus (E). Those data can be used to determine the correlation between velocity of ultrasonic wave with UCS, the relationship between static mechanical and dynamic mechanical behavior and also quality of rock masses with velocity index. The corelation between velocity of ultrasonic wave (V c p p ) and UCS ( ) can be determined. Here the equation for each lithology : Clay ;  c = 0,032V – 27,72 Coallyclay ;  c p = 0,034V – 29,73 Silt ;  c = 0,05V – 4,051 Coal ;  c p = 0,019V – 16,10 Sandstone ;  c p = 0,020V p – 17,57 The equation poisson ratio’s static (ν p ) with poisson ratio’s dynamic (ν Dinamik ) and modulus young’s static (E Statik ) with modulus young dynamic (E Dinamik Statik ) can be determined with . With second the equations linear, the relationship between static mechanical and dynamic mechanical behavior in the research location can be determined. With use a linear graph approach the equation for each lithology : Clay ; ν Static = 0,960ν Dynamic + 0,009 and E Static = 0,023E – 14,18 Coallyclay ; ν Static = 1,048ν Dynamic – 0,008 and E Static Dynamic = 0,063E – 37,42 Silt ; ν Static = 0,894ν Dynamic + 0,025 and E Static = 0,016E – 12,58 Coal ; ν Static = 1,151ν Dynamic – 0,031 and E Static = 0,288E Dynamic – 187,7 Sandstone ; ν Static = 1,168ν Dynamic – 0,025 and E Static Dynamic = 0,007E Dynamic + 10,06 The corelation between quality of rock masses and velocity index (VI) in the research location can be determined by using Karpuz equation (1990) and King & McConel (Braybrooke, 1988). The result from clay, coallyclay, coal, and sandstone have a great quality of rock masses with velocity indeks 0 - 1,0. Meanwhile, silt has a good quality of rock mass with velocity index 0,6 - 0,8. Dynamic c

    Item Type: Thesis (Other)
    Subjects: 500 Sains dan Matematika
    Divisions: Fakultas Teknologi Mineral > Teknik Pertambangan
    Depositing User: Eny Suparny
    Date Deposited: 02 Jul 2013 10:43
    Last Modified: 02 Jul 2013 10:43
    URI: http://repository.upnyk.ac.id/id/eprint/6324

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