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All Journal Journal of Degraded and Mining Lands Management Forum Geografi Journal of Geoscience, Engineering, Environment, and Technology PROMINE Jurnal Chemurgy Gorontalo Journal of Forestry Research Specta Journal of Technology INDONESIAN MINING PROFESSIONALS JOURNAL JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Sosial dan Teknologi Journal Transformation of Mandalika Jurnal Riset Teknik Pertambangan Journal of Comprehensive Science MINERAL Nusantara Civil Engineering Journal INTAN Jurnal Penelitian Tambang Jurnal Sosial dan Sains Jurnal Manusia dan Lingkungan JURNAL TEKNOLOGI MINERAL FT UNMUL
Shalaho Dina Devy
Fakultas Teknik Universitas Mulawarman
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Studi Pengaruh Densitas Batu Pasir Terhadap Nilai Kuat Tekan Pada Formasi Pulau Balang, Di Daerah Kalimantan Timur Suharni, Suharni; Oktaviani, Revia; Devy, Shalaho Dina
JURNAL TEKNOLOGI MINERAL FT UNMUL Vol 11, No 2 (2023): Jurnal Teknologi Mineral FT UNMUL Desember 2023
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jtm.v11i2.11437

Abstract

Kuat tekan uniaksial (σc) adalah gambaran dari nilai tegangan maksimum yang dapat ditanggung sebuah contoh batuan sesaat sebelum contoh batuan tersebut runtuh (failure). Kuat tekan uniaksial digunakan untuk memilih metode pemberaian batuan pada kegiatan penambangan baik sistem tambang terbuka maupun bawah tanah apakah menggunakan metode peledakan atau menggunakan alat mekanis. Lokasi penelitian dilakukan pada tiga lokasi yang berbeda dengan formasi batuan yang sama. Lokasi pertama dilakukan pada lokasi penambangan batupasir tradisional milik warga setempat. Lokasi tersebut berada pada Tenggarong jalur 1 Jalan loa duri ilir, lokasi ke dua loa kulu, dan Lokasi ke tiga berada pada Jalan Kadrioning samarinda, tempatnya di pinggir jalan. Penelitian ini menggunakan metode kuantitatif, dengan melakukan perhitungan pada uji kuat tekan uniaksial untuk mendapat nilai kuat tekan dan uji fisik untuk mendapatkan nilai densitasnya.  Nilai densitas dari tiga lokasi Formasi Pulau Balang  jenis batu pasir loa duri berada pada rentan nilai 1,72gr/cm3 – 1,94gr/cm3, loa kulu yaitu 1,78gr/cm3–1,87gr/cm3 dan kadrioning 1,81 gr/cm3 – 1,91 gr/cm3.  Sedangkan nilai kuat tekan rata-rata loa duri 6,78 Mpa, loa kulu 6,33 Mpa dan kadrioning 2,98 Mpa. Hubungan antara densitas  terhadap hasil uji kuat tekan yang didapat, Semakin tinggi Nilai kuat tekan batu pasir maka nilai densitas batu pasir yang dimiliki akan ikut meningkat. 
Efektivitas Penggunaan Arang Batang Eceng Gondok dalam Penurunan Kadar Logam Besi (Fe) dan Mangan (Mn) pada Air Asam Tambang PT. Anugerah Krida Utama Jaba, Yafet; Nugroho, Windhu; Oktaviani, Revia; Devy, Shalaho Dina; Pontus, Albertus Juvensius
JURNAL TEKNOLOGI MINERAL FT UNMUL Vol 11, No 2 (2023): Jurnal Teknologi Mineral FT UNMUL Desember 2023
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jtm.v11i2.13316

Abstract

Air asam tambang (AAT) merupakan permasalahan lingkungan yang membutuhkan penanganan yang efektif karena dapat menimbulkan dampak bagi masyarakat serta dapat merusak lingkungan. Penelitian ini dilakukan bertujuan untuk mengevaluasi efektivitas penggunaan arang aktif eceng gondok dalam menurunkan kadar logam besi (Fe) dan mangan (Mn) pada PT Anugerah Krida Utama. Penelitian dilakukan melalui metode adsorpsi dengan menggunakan arang aktif eceng gondok tanpa aktivasi dan aktivasi kimia yang divariasikan dengan perbedaan penggunaan massa yaitu 1, 2, 3, dan 5 gram dengan waktu kontak 60 menit, untuk ukuran 100 mesh serta kecepatan pengadukan 100 rpm. Hasil dari perlakuan digunakan untuk mengamati pengaruh massa arang aktif yang digunakan terhadap hasil penurunan kadar logam. Pengukuran kadar logam Fe dan Mn dilakukan sebelum dan setelah perlakuan konsentrasi awal logam Fe (90,57) dan konsentrasi awal logam Mn (31,516 mg/L). Hasil penelitian menunjukkan bahwa jumlah arang aktif eceng gondok yang semakin bertambah mampu menurunkan kadar logam  Fe dan Mn pada AAT. Hasil penurunan logam Fe terbaik pada arang aktif tanpa aktivasi sebesar 0,1827mg/L dan logam Mn sebesar 20,138 mg/L hal ini dipengaruhi ketidak stabilan ikatan adsorben dengan ion logam, penyerapan antara adsorben itu sendiri yang memperebutkan dinding pori pada adsorben dan juga dinding pori yang tidak luas, sedangkan pada arang aktif aktivasi kimia penurunan logam Fe terbaik sebesar 0,2285 mg/L dan logam Mn sebesar 1,160 mg/L.
A MODIFICATION LIMIT EQUILIBRUM SOLUTION FOR MINE BACKFILL ANALYSIS IN SEMI CUBE STOPE Kahfi, Ashabul; Oktaviani, Revia; Devy, Shalaho Dina
Indonesian Mining Professionals Journal Vol 6, No 1 (2024): April
Publisher : PERHAPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36986/impj.v6i1.90

Abstract

Mine backfill is a material that is used to fill the empty stope in an underground mine for ground control stability and to reduce ore dilution. Generally, the backfill consists of mining waste materials and ore tailings, which are added to a binder such as cement. Problems that often appear in the mining cycle using stope and backfill are the stability of the backfill on the primary stope when exposing the secondary stope. Previous researchers suggested analyzing the stability of the backfill on the narrow stope. In some cases, a semi-cube stope is often found. Obviously, the potential failure dimension, which acts as the driving force of the backfill in the semi-cube stope, is smaller than the narrow stope. This study was meant to develop a method for analyzing the stability of the backfill on the semi-cube stope by calculating the driving force according to the failure potential dimensions that could potentially occur and simulating it with numerical modeling using FEM.
STUDI PENCAMPURAN BATUBARA KUALIATAS RENDAH DENGAN ARANG GERGAJI KAYU SENGON PADA PROSES PEMBUATAN BRIKET Donal, Donal; Hasan, Harjuni; Agus Winarno; Nugroho, Windhu; Devy, Shalaho Dina
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 2 No. 8 (2021): Agustus
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v2i8.974

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui hasil analisis proksimate, uji kuat tekan dan penyalaan api serta laju pembakaran pada briket. Hasil penelitian menunjukkan bahwa jenis perekat dan biomassa berpengaruh nyata terhadap kadar air, kadar abu, zat mudah menguap, karbo tertambat, penyalaan api serta laju pembakaran, sedangkan tidak berpengaruh terhadap kerapatan dan kuat tekan. Perlakuan terbaik yang sesuai dengan standar SNI dari penelitian ini didapatkan dari perlakuan dengan komposisi 60% batubara : 40% arang sengon dan 50% batubara : 50% arang sengon dengan kode sampel KH dan KP perekat tepung tapioka. Briket dengan komposisi 60%batubara : 40% arang sengon kode sampel KH (Pulaubalang) yang dihasilkan dari perlakuan ini memiliki nilai kadar air 5,99 % ; kadar abu 6,92 % ; zat terbang 11,42%; kadar karbon tertambat 75,65%; laju pembakaran 3,74 g/menit ; nyala api 6 : 36 menit ; kerapatan 0,23 g/cm3 ; kuat tekan 38,22 kg/cm2. Briket dengan komposisi 50%batubara : 50% arang sengon kode sampel KP (Balikpapan) yang dihasilkan dari perlakuan ini memiliki nilai kadar air 6,96 % ; kadar abu 4,73 % ; zat terbang 11,92%; kadar karbon tertambat 76,39%; laju pembakaran 2,61 g/menit ; nyala api 6 : 57 menit ; kerapatan 0,21 g/cm3 ; kuat tekan 24.70 kg/cm2.
RENCANA PENAMBANGAN BATUBARA TRIWULAN PADA CV. KUTAI KUMALA ENERGY KECAMATAN LOA KULU, KABUPATEN KUTAI KARTANEGARA, PROVINSI KALIMANTAN TIMUR : QUARTERLY COAL MINING PLAN AT CV. KUTAI KUMALA ENERGY LOA KULU DISTRICT, KUTAI KARTANEGARA REGENCY, EAST KALIMAN Zwageri, Rizky; Devy, Shalaho Dina; Nugroho, Windhu; Winarno, Agus; Magdalena, Henny
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 3 No. 5 (2022): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v3i5.1182

Abstract

Mining design is part of the planning stages of mining as a very important factor is determined before the actual mining plan begins. CV. Kutai Kumala Energy is a company engaged in coal mining which has a Mining Business License located in Loa Kulu District, Kutai Kartanegara Regency, East Kalimantan Province. On CV. Kutai Kumala Energy pit BC was calculated with the aim of meeting the overburden of 5,095,565.38 BCM and the coal stripping target of 673,541.31 MT. In determining production targets for 1 year and in accordance with the capabilities of the tools at the research location.
STUDI ADSORBSI LOGAM BESI (Fe) DAN MANGAN (Mn) PADA AIR ASAM TAMBANG OLEH KOMPOSIT: CLAYSTONE – ZEOLIT - KARBON AKTIF TERAKTIVASI ADSORPTION STUDY OF LOGAM BESI (Fe) AND MANGANESE (Mn) ON ACID MINE WATER BY CLAYSTONE COMPOSITE - ZEOLITE - ACTIVATED CARBO Ginting, Emdananta; Devy, Shalaho Dina; Henny Magdalena; Oktaviani, Revia; Respati, Lucia Litha
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 3 No. 5 (2022): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v3i5.1184

Abstract

Composites are a combination of two or more different materials and their properties to form new materials that have better characteristics. The composite was previously composed of activated claystone, activated zeolite, and coconut shell activated charcoal with 3 ratios, namely: (claystone [C] : zeolite [Z] : activated charcoal [A] = 60:20:20; 20:20:60; and 20:60:20. This composite acts as an adsorbent in the adsorption process of acid mine water samples. Based on the results of the adsorption test, it was concluded that the composite cannot neutralize the pH of acid mine water. Of the three types of composites, Composite A (claystone [C] : zeolite [Z] : activated charcoal [A] = 60:20:20) showed a significant influence with a decrease in the concentration of heavy metals Iron and Manganese within 30 min of contact time. Fe adsorption capacity is 20,7 mg/g and Mn is 24,3 mg/g.
Pengukuran Volume Overburden Menggunakan UAV di Pit 3HWE PT Indominco Mandiri: Measuring Overburden Volume Using UAV at Pit 3HWE PT Indominco Mandiri Sendana, Aprianto Aris; Magdalena, Henny; Devy, Shalaho Dina; Trides, Tommy; Respati, Lucia Litha
MINERAL Vol 10 No 1 (2025): MINERAL
Publisher : Program Studi Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/vjs1rh30

Abstract

This study aims to measure the overburden volume at Pit 3HWE, PT. Indominco Mandiri using Unmanned Aerial Vehicle (UAV) technology. The use of UAV for volume measurement offers a more efficient and accurate alternative compared to conventional methods. In this research, aerial images were captured using a UAV and processed with photogrammetry software to generate a digital surface model (DSM) and 3D maps. The overburden volume calculations were analyzed and compared with manual measurement data as a reference. The results indicate that UAV usage provides accurate results with higher time efficiency, making it a viable method for mining operations. Factors affecting the measurement results, such as weather conditions and image resolution, were also analyzed in this study.
THE IMPACT OF MINING EXCAVATIONS (VOIDS) ON THE WATER QUALITY MANAGEMENT IN THE NORTH KALIMANTAN PROVINCE Ardian, Sandy; Aipassa, Marlon Ivanhoe; Oktaviani, Reva; Imang, Ndan; Devy, Shalaho Dina; Susilo, Heru Ivanhoe; Kristiningrum, Rochadi Kristiningrum; Sarwono, Edy Kristiningrum; Arifin, Dawamul Ivanhoe
Gorontalo Journal of Forestry Research VOLUME 7 NOMOR 1 TAHUN 2024 GORONTALO JOURNAL OF FORESTRY RESEARCH
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gjfr.v7i1.3304

Abstract

The presence of a coal mining business permit not only has an economic impact but can also cause environmental problems. The objectives of this research are (1) to analyze the impact of PT XXX's overflowing voids on water management and water quality, and (2) to carry out spatial analysis, mapping and estimation of coal reserves that cannot be extracted by PT YYY. The research method is a case study selected by purposive sampling at two companies in North Kalimantan Province using water quality test analysis with grab sampling and estimating the potential loss of coal reserves using the rule of gradual changes and rule of nearest point methods as well as aerial photography. The research results show that in general the water use meets Class 3, namely: Water that can be used for cultivating freshwater fish, animal husbandry, water for irrigating crops, and/or other uses that require the same water quality as that use. Apart from that, PT XXX has built an overflow water channel into the PT YYY area without management approval, thus having a negative impact on PT YYY's mining plans which are dominated by peat land. Map of PT YYY's lost coal potential of 714,688 MT with an affected area of 15.16 hectares with details of 6.4 ha being the void area included in PT YYY's IUP area, 1.86 ha being the road and buffer zone area and 6.9 ha is a potential lost area of PT YYY.
Permodelan hidrogeologi kondisi natural pada daerah luyo kabupaten polewali mandar provinsi sulawesi barat Nur Aqsa Syahban Irwan; Shalaho Dina Devy; Albertus Juvensius Pontus; Revia Oktaviani; Agus Winarno
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 5 (2026)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss5pp741-752

Abstract

The Luyo area, Polewali Mandar Regency, West Sulawesi Province, has a high dependence on groundwater as the main source of water for domestic and community activities. Increasing groundwater utilization may potentially disturb the natural hydrogeological balance if it is not properly managed. Therefore, a comprehensive understanding of natural hydrogeological conditions is essential as a basis for sustainable groundwater management. This study aims to determine the hydrogeological conditions of the study area, the natural groundwater balance, and the groundwater flow pattern and hydraulic head distribution through natural-condition hydrogeological modeling. The research methods include hydrological analysis, groundwater level measurements, electrical resistivity surveys using the Schlumberger configuration, pumping tests, and steady-state numerical groundwater modeling based on conceptual and mathematical approaches. The results indicate that the hydrogeological system in the study area consists of unconfined and semi-confined aquifers controlled by local lithological and geomorphological conditions. The natural groundwater balance shows that the study area remains in a relatively balanced condition, with groundwater recharge primarily derived from rainfall infiltration. Groundwater flow generally follows the topography, moving from recharge areas toward discharge zones such as rivers and springs. Model calibration results show good agreement between simulated and observed hydraulic heads. The developed natural-condition hydrogeological model is expected to serve as a baseline reference for evaluating future changes in the groundwater system due to human activities and environmental changes
Rekomendasi perencanaan sistem penyaliran pada disposal selatan PT victor dua tiga mega Putri Lufian Tika; Agus Winarno; Ardhan Ismail; Shalaho Dina Devy; Revia Oktaviani
Journal Scientific of Mandalika (JSM) e-ISSN 2745-5955 | p-ISSN 2809-0543 Vol. 7 No. 6 (2026): (in progress)
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/10.36312/vol7iss6pp827-836

Abstract

This study aims to analyze the effectiveness of drainage in the southern disposal pit dump 4 area. It uses a descriptive quantitative method with primary data collection in the form of actual channel conditions and dimensions, as well as flow velocity measurements using the float method. Secondary data includes rainfall data, disposal design, topography, and mine progress maps. The analysis uses the Mononobe method to calculate rainfall intensity, the rational method based on a 10-year return period to calculate planned runoff discharge, and the Manning equation to determine channel capacity. The results of this study indicate that the actual open channel in the disposal area of pit dump 4 south has a discharge of 0.50 m3/s under light rain conditions and a discharge of 1.12 m3/s under heavy rain conditions, and experiences a decrease in hydraulic performance due to erosion on the channel walls and sediment deposition at the bottom of the channel. Therefore, the current channel cannot accommodate and drain the maximum discharge that may occur under extreme conditions. It is recommended that an open channel with a channel capacity of 8.45 m3/s can accommodate a planned runoff discharge of 7.68 m3/s, which indicates that the drainage system is capable of accommodating and draining water safely, efficiently, and sustainably
Co-Authors Abdul Rijal Mukmin Achmad Faisal Agus Winarno Agus Winarno Agus Winarno Agus Winarno Agus Winarno, Agus Ainayah Al Fatihah Aipassa, Marlon Ivanhoe Albertus Juvensius Pontus Aline Thresa Ardhan Ismail Ardian, Sandy Arifin, Dawamul Ivanhoe Ashabul Kahfi, Ashabul Bryan Andreas Turnip Christian Sarungallo Christian Sarungallo Dean Ryanda Putra Donal, Donal Dony Prakasa Eka Putra Eva Indriani Sanggalangi Fasih Hardian Fitri Nur Fadilah Gampang Toha Gayus Irwanto Andeina Ginting, Emdananta Grecensius Jevino Hadis Hamzah Umar Hamzah Umar Harjuni Hasan Harjuni Hasan Harjuni Hasan Henny Magdalena Heru Hendrayana Heru Susilo Ibnu Hasyim Ibnu Hasyim Ibnu Hasyim IMANG, NDAN Irfan Irfan Irvan Oktaviandi Jaba, Yafet Krisanto Yardin Panggeso Kristiningrum, Rochadi Kristiningrum Kusnanto, Fransiska Angelina Lifia Kemala Dewi Lucia Litha Respati Lucia Litha Respati Lucia Litha Respati Mardan Ali Mohammad Geraldo fahmi Musodiq Musodiq Nugroho, Windhu Nur Aqsa Syahban Irwan Oktaviani, Reva Pradipta Baehaqi Pretty Permatasari Hutahayan Putri Lufian Tika Putri, Agita Kendari Respati, Lucia Litha Revia Oktaviani Revia Oktaviani Revia Oktaviani Rifki Amin Ma’sum Rinto Syahreza Pahlevi Sakdillah Sakdillah Sakdillah Sakdillah Sandri Tandi Rapang Sarwono, Edy Kristiningrum Sendana, Aprianto Aris Sharon Tria Kurniawati Silaban Suhaila Ridwan Suharni Suharni Tommy Trides Tommy Trides Tommy Trides Tommy Trides Trides, Tommy William William Windhu Nugroho Windhu Nugroho windhu Wiradhana, Ni Made Ayu Dwi Kartika Zwageri, Rizky