ANALISIS KEMANTAPAN LERENG DITINJAU DARI KOMPOSISI MINERAL PADA FORMASI LERENG TIMBUNAN OVERBURDEN DI MTBU UNIT PERTAMBANGAN TANJUNG ENIM UPTE PT BUKIT ASAM (PERSERO) TBK

ATAARIQ, ALYA ZEIN and Asof, Marwan and Mukiat, Mukiat (2023) ANALISIS KEMANTAPAN LERENG DITINJAU DARI KOMPOSISI MINERAL PADA FORMASI LERENG TIMBUNAN OVERBURDEN DI MTBU UNIT PERTAMBANGAN TANJUNG ENIM UPTE PT BUKIT ASAM (PERSERO) TBK. Undergraduate thesis, Sriwijaya University.

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Abstract

Slope stability is an important factor in the sustainability of the mining process, a stable slope will reduce potential losses due to cladding. A waste dump/disposal area is an area in an open pit mining operation that is used as a place to dispose of low-grade material and/or non-ore materials such as overburden and interburden. The east block heap slope of the Muara Tiga Besar Utara is a hoarding area by the in-pit dump method with a slope length of 140, a slope height ranging from 43 - 48 meters, and the overall angle is 17 ° - 19 °, type of soil on the heap slope is soil with a cohesion value ranging from 21.5 - 25.9, the shear angle in 11.3 - 14.21, and the unit weight of 16.95 - 17.98, with the largest FK which is 1.22 and the smallest FK 1.049 In this category, the slope is included in critical conditions because the safety factor value shows a number in the range of 1.04 - 1.22. The XRF test results show clay levels with the lowest cohesion values containing high levels of Fe (iron), the presence of iron elements is a indicator that the type of clay minerals contained is montmorillonite, Montmorillonite is a type of clay mineral with a high ability to expand but has low permeability so that bound water is difficult to escape or dry

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Longsoran, Timbunan, Montmorillonite, Kohesi
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:	Alya Zein Ataariq
Date Deposited:	14 Jun 2023 02:01
Last Modified:	14 Jun 2023 02:01
URI:	http://repository.unsri.ac.id/id/eprint/110311

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