PERENCANAAN PENJADWALAN PENGERINGAN SUMP SERTA PENAMBANGAN DALAM UPAYA MENCAPAI TARGET FINALISASI PIT 1 TIMUR DAN UTARA DI TAHUN 2022 PT. BUKIT ASAM, TBK

ATHALLAH, M. ZAKI and Toha, M. Taufik and Syarifudin, Syarifudin (2023) PERENCANAAN PENJADWALAN PENGERINGAN SUMP SERTA PENAMBANGAN DALAM UPAYA MENCAPAI TARGET FINALISASI PIT 1 TIMUR DAN UTARA DI TAHUN 2022 PT. BUKIT ASAM, TBK. Undergraduate thesis, Sriwijaya University.

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Abstract

PT. Bukit Asam, Tbk (PTBA) plans to carry out finalization activities on Pit 1 East and North. However, in the implementation of the East and North Pit 1 finalization activities there was an obstacle, namely the final design locations for East and North Pit 1 which based on the RKAP there were still 4 (four) sump that flooded, that is sump north, sump middle, sump south, and sump east so a draining plan is needed jump then a mining scheduling plan to achieve the finalization target pit in 2022. Based on calculations using Minescape 5.7 use tools sample - polygon, it is known the total reserves remaining on pit 1 East and North of 2,418,670.58 tons of coal by volume overburden of 5,381,828.51 BCM. Based on the drying scenario results sump which has been planned using the 7 available pump units, including 3 units of Multiflo 385 HP, 2 units of Multiflo 420 EXHV, 1 unit of KSB DND 200 MHX, 1 unit of KSB LSA, obtained a dry schedule sump middle on May 10, 2022, sump north on May 19, 2022, sump south on May 26, 2022, and sump east on June 14, 2022. After obtaining a dry schedule sump, then calculated plan production based on the capability of the available equipment with an estimate that all reserves will be exhausted in October 2022 so that a draft is obtained sequence mining on a monthly scale starting from May to October 2022 with a total of 652,492.14 tons and overburden of 2,622,230.14 BCM, SR 4.02:1 with an opening area of 32.29 ha and the final bench on RL -48 for Pit 1 North and to Pit 1 East obtained a total coal tonnage of 1,766,178.44 tons and overburden of 2,751,319.01 BCM, SR 1.56:1 with an opening area of 35.70 ha and the final bench at RL -50. Based on the results of the tool requirements analysis, for fleet overburden required 1 unit of Komatsu PC 2000 and 4 units of Liebherr R9100 paired with 29 units of Komatsu HD 785 in May to September 2022 and 2 units of Liebherr R9100 paired with 12 units of Komatsu HD 785 in October. Whereas for fleet coal, 4 units of Komatsu PC400 are needed paired with 28 units of Quester CWE 280 from May to October 2022. Based on the planned mining scheduling plan, a final schedule is obtained Pit 1 East and North with final schedule estimates Pit 1 North in September 2022 and Pit 1 East in October 2022.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Sequence, Penjadwalan Penambangan, Pengeringan Sump
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN1-997 Mining engineering. Metallurgy
Divisions:	03-Faculty of Engineering > 31201-Mining Engineering (S1)
Depositing User:	M. Zaki Athallah
Date Deposited:	13 Apr 2023 07:14
Last Modified:	13 Apr 2023 07:14
URI:	http://repository.unsri.ac.id/id/eprint/96082

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