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All Journal Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal of Earth and Marine Technology (JEMT)
Suci, Fitri Indah Dwi
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Physics Transportation

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STUDI KASUS EFEK EPIDEMI COVID - 19 TERHADAP PENAMBANGAN DAN KARYAWAN PT. PERTAMINA DI MIGAS CEPU KAB. BOJONEGORO, JAWA TIMUR Suci, Fitri Indah Dwi; Latekay, Priskilla; Limtar, Abdan Said Halim; Farid, Wendy Muhammad Ibnu; Assa, King Christ Majesty Spencer; Iksan, Iksan; Kobba, Angga Pratama Putra; Mahindra, Moch. Fahni; Geri, Martinus Lousiano; Miru, Poppy Paulina; Sari, Avellyn Shinthya
Prosiding Seminar Teknologi Kebumian dan Kelautan Vol 2, No 1 (2020)
Publisher : Prosiding Seminar Teknologi Kebumian dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (828.424 KB)

Abstract

PPSDM Migas Cepu merupakan tempat proses pengelohan minyak yang ada di daerah cepu, selain itu tempat ini juga digunakan sebagai tempat pelatihan untuk mendapatkan berbagai macam sertifikat yang berhubungan dengan perminyakan dan pertambangan. Sehingga dapat dikatakan PPSDM Migas Cepu ini merupakan tempat penting dalam dunia perminyakan di indonesia selain itu PPSDM Migas ini juga memiliki tempat pengeborannya sendiri yang berada di daerah Bojonegoro Disinilah kami akan membahas nasib pekerja PPSDM Migas Semenjak terjadinya pandemi covid-19 ini.
Assessment of Drainage Efficiency in the Backfill Disposal Area of East Air Laya Mine Field at PT. Bukit Asam; A case study from Tanjung Enim, South Sumatera, Indonesia Suci, Fitri Indah Dwi; Fanani, Yazid; Cahyono, Yudho Dwi Galih
Journal of Earth and Marine Technology (JEMT) Vol 5, No 1 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v5i1.5942

Abstract

This research undertakes a thorough evaluation of the drainage systems in the disposal areas at PT. Bukit Asam during the October 2023 sequence, with the objective of understanding the factors that influence the capacity and efficiency of disposal mounds, the density of materials used, the geometric structure of disposal sites, and the design dimensions of open drainage channels. Utilizing the trapezium volume formula, the study meticulously calculated the planned disposal volumes at various elevations—2,289,155 Bank Cubic Meters (BCM) at 36 meters, 1,004,112 BCM at 42 meters, and 669,892 BCM at 48 meters—comparing these against an actual obtained volume of 1,799,111.4 BCM. The substantial variance between the planned and actual volumes highlights the critical challenges in achieving predictive accuracy in disposal management. Further assessments were conducted using the Dynamic Cone Penetrometer (DCP) with a 60-degree cone to determine the density and sub-grade California Bearing Ratio (CBR) of the barrier materials, which were found to be suitable for road construction, falling under sub-grade C classification. Moreover, the Gumbel method was applied to devise the dimensions of a trapezoidal open channel, designed to facilitate a drainage capacity of 100,432.996 cubic meters per hour over a length of 3000 meters. The channel dimensions included a bottom width of 1.1 meters, a top width of 2.3 meters, a depth of 2.4 meters, and a 45-degree slope, with a Manning’s coefficient (n) of 0.03. This detailed inquiry not only provides vital insights into the operational adjustments required for effective drainage but also promotes the adoption of sustainable and safe disposal management practices in the mining industry. The findings from this study serve as a pivotal reference for future improvements in the design and management of mine waste disposal systems
Co-Authors Assa, King Christ Majesty Spencer Avellyn Shinthya Sari Fanani, Yazid Farid, Wendy Muhammad Ibnu Geri, Martinus Lousiano Iksan, Iksan Kobba, Angga Pratama Putra Latekay, Priskilla Limtar, Abdan Said Halim Mahindra, Moch. Fahni Miru, Poppy Paulina