EVALUASI KESTABILAN LERENG OVERBURDEN CLAY LOW STRENGTH PADA TAMBANG BATUBARA PIT KOTO BUAYO PT BARA BATIN PRATAMA, KABUPATEN BATANG HARI, PROVINSI JAMBI

WIDIANA, NITA MAYAWI and Toha, M. Taufik and Sudarmono, Djuki (2019) EVALUASI KESTABILAN LERENG OVERBURDEN CLAY LOW STRENGTH PADA TAMBANG BATUBARA PIT KOTO BUAYO PT BARA BATIN PRATAMA, KABUPATEN BATANG HARI, PROVINSI JAMBI. Undergraduate thesis, Sriwijaya University.

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Abstract

Lereng merupakan bagian yang membentuk sudut kemiringan tertentu terhadap bidang horizontal dari permukaan bumi. Kondisi lereng yang terdapat pada pit Koto Buayo PT Bara Batin Pratama ditemukan adanya longsoran busur yang diakibatkan kurangnya monitoring yang dilakukan secara berkala. Tujuan penelitian ini untuk menganalisis kestabilan lereng dengan metode Rock Mass Rating (RMR), Slope Mas Rating (SMR), dan Bishop dengan Aplikasi Rockscience Slide 6.0. Analisis klasifikasi massa batuan menggunakan metode Rock Mass Rating (RMR) dan Slope Mass Rating (SMR) menunjukkan hasil bahwa kondisi batuan di daerah penelitian termasuk dalam kelas 3 (kestabilan sedang). Nilai faktor keamanan yang didapat menggunakan metode Bishop dengan aplikasi Rockscience Slide 6.0 untuk Lereng A scanline 1 adalah 0,465, Lereng A scanline 2 adalah 0,088, dan Lereng B adalah 1,092. Faktor keamanan lereng A dan B masih dibawah 1,25 (tidak aman), oleh karena itu perlu dilakukan evaluasi ulang terhadap lereng A dan B agar faktor keamanannya dapat mencapai 1,25 atau dalam kondisi stabil.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Kestabilan lereng, Rock Mass Rating, Slope Mass Rating, Bishop.
Subjects: T Technology > TN Mining engineering. Metallurgy > TN275-325 Practical mining operations. Safety measures
Divisions: 03-Faculty of Engineering > 31201-Mining Engineering (S1)
Depositing User: Users 2258 not found.
Date Deposited: 07 Oct 2019 03:44
Last Modified: 08 Oct 2019 02:20
URI: http://repository.unsri.ac.id/id/eprint/10187

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