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All Journal PROMINE Jurnal Chemurgy Jurnal Cahaya Mandalika JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Sosial dan Teknologi Journal Transformation of Mandalika Journal of Comprehensive Science MINERAL Jurnal Sosial dan Sains Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Penelitian Rumpun Ilmu Teknik Jurnal Sains dan Teknologi Jurnal Teknik Pertambangan (JTP) Jurnal Inovasi Global Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan JURNAL TEKNOLOGI MINERAL FT UNMUL Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Venus: Jurnal Publikasi Rumpun Ilmu Teknik Journal of Media, Sciences and Education
Henny Magdalena
Universitas Mulawarman
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering 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 Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Evaluasi Perhitungan Volume Stockpile Batubara dengan menggunakan Alat Total Station di PT. Bukit Baiduri Energi, Kabupaten Kutai Kartanegara, Provinsi Kalimantan Timur Muhammad Rofy Fauzan; Henny Magdalena; Lucia Litha Respati; Windhu Nugroho; Albertus Juvensius Pontus
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 4 No. 2 (2026): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v4i2.1366

Abstract

Coal stockpile volume measurement is an essential part of mining production control. This study aims to evaluate the calculation of coal stockpile volume using a Total Station (TS) at PT. Bukit Baiduri Energi, Kutai Kartanegara Regency, East Kalimantan Province, and to assess the accuracy and effectiveness of this method in operational activities. Data acquisition was carried out through direct field measurements using a Total Station with a detailed surface point survey method. The collected data were processed using Minescape 5.7 software to generate a triangulated surface model, and the volume was calculated using the Cut and Fill method. The results show that the Total Station method produced a stockpile volume of 21,069.15 m³ with a high level of accuracy due to direct field measurement. This method provides advantages in elevation data accuracy; however, it requires relatively more time and manpower during the data acquisition process. Based on these findings, the use of Total Station is recommended for stockpile volume calculations that require high accuracy, particularly for production evaluation and coal reserve reporting.
Analisis Lama Waktu Pemanasan dan Rasio Komposisi Oli terhadap Peningkatan Kualitas Batubara menggunakan Metode Upgrading Brown Coal Ferry Samuel Maringan Siregar; Windhu Nugroho; Henny Magdalena; Agus Winarno; Rety Winonazada
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 4 No. 2 (2026): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v4i2.1367

Abstract

Low-rank coal generally has a high moisture content, which results in a low calorific value and suboptimal quality for utilization as an energy source. One method that can be applied to improve coal quality is the Upgrading Brown Coal (UBC) process, which functions to reduce moisture content and increase fixed carbon value. This study aims to analyze the effect of heating time and the ratio of used oil composition on improving coal quality based on proximate parameters. The research method includes collecting coal samples from four locations in Samarinda and its surrounding areas, namely SMAN 1 Samarinda, Bhineka Street, Palaran Stadium, and Tani Bakti Village. The samples were analyzed using proximate analysis, including inherent moisture (IM), ash content (AC), volatile matter (VM), and fixed carbon (FC), both before and after the UBC process. The upgrading process was carried out with variations in heating time and used oil composition as a coating medium to enhance coal stability and prevent moisture reabsorption. The final results of the upgrading process showed the best values of inherent moisture at 13.64%, ash content at 4.66%, volatile matter at 55.06%, and fixed carbon at 44.94%. The results indicate that the UBC process is capable of reducing inherent moisture and increasing fixed carbon, thereby improving coal quality. Variations in heating time and used oil composition have a significant effect on changes in proximate parameters. Longer heating time and an appropriate ratio of used oil composition result in a more optimal improvement in coal quality.
Studi Produktivitas Coal Crusher Plant dalam Upaya Pencapaian Target Barging Pada PT. Bukit Biduri Energi Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur Irfan Sauri; Harjuni Hasan; Henny Magdalena; Windhu Nugroho; Agus Winarno
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 4 No. 2 (2026): Mei: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v4i2.1389

Abstract

Bukit Baiduri Energi is a coal mining company operating in Bukit Raya Village, Tenggarong Seberang District, Kutai Kartanegara Regency, East Kalimantan Province. The coal produced has different sizes so it cannot be sold directly. Therefore, it is necessary to carry out a grain size reduction process (crushing) to meet market needs (buyers). The production target of the crushing unit is 128,000 tons/month, based on actual observations in the field, it only produces 110,065.27 tons/month, which means the crusher plant unit only produces 86%, still lacking 14%. Productivity at CP-01 is 317.73 tons/hour and CP-02 is 214.47 tons/hour. The production target has not been achieved due to several constraints (technical and non-technical), it is necessary to conduct a constraint time analysis using a Pareto diagram to determine the efforts that must be made to achieve the production target. For the work efficiency value at CP-01 it is only 27.04% and for CP-02 it is only 31.21 and for the value of the availability of working time of the crusher plant unit, the value at CP-01 is MA = 81.94%, PA = 28.75%, UA = 90.04%, EU = 27.04% and at CP-02 it is MA = 83.31%, PA = 32%, UA = 94% and EU = 30%. The production of the crusher unit after improving the working time constraints is able to produce 328,021.15 tons/month.
Analisis Produktivitas Alat Angkut Dump Truck Liugong DW90A dan Hino 500 pada Product Coal Stockpile PT. Victor Dua Tiga Mega Site Luwe Hulu Kab. Barito Utara Prov. Kalimantan Tengah Gokma Rohartama Gultom; Agus Winarno; Rety Winonazada; Windhu Nugroho; Henny Magdalena
JURNAL TEKNOLOGI MINERAL FT UNMUL Vol 14, No 1 (2026): Jurnal Teknologi Mineral FT UNMUL Juni 2026
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jtm.v14i1.26988

Abstract

Produktivitas alat angkut adalah besarnya produksi yang dapat dicapai dalam kenyataan kerja alat angkut berdasarkan kondisi yang dicapai saat ini. Ada beberapa faktor yang menyebabkan tidak tercapainya target produksi batubara diantaranya alat angkut tidak dalam kondisi baru sehingga sering mengalami breakdown dan perbaikan ditengah kegiatan produksi yang sedang berlangsung. Selain itu hal ini juga disebabkan oleh beberapa faktor seperti ketidakserasian kerja alat angkut, waktu kerja kerja yang tidak optimal dan efisiensi kerja alat mekanis. Metode yang digunakan dalam penulisan yaitu dengan pendekatan masalah yang berupa pengambilan bahan, baik berupa dasar teori maupun data-data objek yang diamati secara langsung dilapangan. Sehingga dilakukan dalam beberapa tahapan yang meliputi tahap pra lapangan, tahap lapangan, dan tahap pasca lapangan.Berdasarkan analisis yang dilakukan maka diperoleh produktivitas teoritis, alat angkut jenis Hino 500 dan Liugong secara berturut turut adalah 21 m3/Jam dan 25 m3/Jam. Produktivitas aktual alat angkut Hino 500 dan Liugong secara berturut turut adalah 5 m3/Jam dan 7 m3/Jam.
Studi Perhitungan Biaya Pada Kegiatan Pengupasan Overburden Pada PIT 5 PT. Indochin Resources Jobsite PT. Energi Cahaya Industritama: Cost Calculation Study On Overburden Removal Activities At Pit 5 Pt. Indochin Resources Jobsite Pt. Industritama Light Energy Hikmawati; Henny Magdalena; Windhu Nugroho; Harjuni Hasan; Lucia Litha Respati
Jurnal Pengetahuan dan Pendidikan Vol 2 No 3 (2023)
Publisher : Yayasan Baru Haji Samsudin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

During the stripping and hauling of overburden, there are several things that affect this activity, namely the productivity of the equipment, working front conditions, loading methods, and working hours. Before carrying out mining activities, it is necessary to calculate a budget, the aim is to provide an overview of the costs to be incurred by the company for mining activities. The results of research that has been carried out for one month shows that the productivity of the tools used for stripping overburden is obtained as follows. The productivity of the Sany SY365H PRO excavator in fleet 1 was 221.13 bcm/hour and the productivity of the Sany SY365H PRO excavator in fleet 2 was 226.11 bcm/hour. And the productivity of the DT SYZ322C-8S conveyance in Fleet 1 is 37.37 bcm/hour and the productivity of the DT SYZ322C-8S conveyance in Fleet 2 is 37.38 bcm/hour. The costs that must be incurred for the tools used in overburden stripping activities are obtained as follows. The ownership cost of the Sany SY365H PRO Excavator digging-loading equipment is US$ 9.93/hour, operating costs are US$ 32.55/hour. The cost of owning the DT SYZ322C-8S means of transportation is US$ 0.54/hour, and operating costs are US$ 12.14/hour.
PERHITUNGAN TONASE BATUBARA BERDASARKAN METODE MINE SURVEY DAN TRUCK COUNT DI PIT KUMALA PT. KHOTAI MAKMUR INSAN ABADI: COAL TONNAGE CALCULATION BASED ON MINE SURVEY AND TRUCK COUNT METHOD AT PIT KUMALA PT. KHOTAI MAKMUR INSAN ABADI Yosia Paonganan; Henny Magdalena; Tommy Trides; Windhu Nugroho; Agus Winarno
JURNAL TEKNIK PERTAMBANGAN Vol. 26 No. 2 (2026): Agustus, 2026
Publisher : JURUSAN TEKNIK PERTAMBANGAN UPR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jtp.v26i2.27128

Abstract

Perhitungan tonase batubara merupakan parameter penting dalam evaluasi pencapaian produksi dan pengendalian kegiatan penambangan. Penelitian bertujuan membandingkan hasil perhitungan tonase batubara menggunakan metode mine survey dan truck count serta mengidentifikasi faktor-faktor penyebab perbedaan tonase pada kegiatan penambangan di Pit Kumala, PT. Khotai Makmur Insan Abadi. Penelitian menggunakan dengan data primer koordinat roof dan floor batubara hasil pengukuran Total Station serta data ritase dan timbangan sebagai data sekunder. Perhitungan tonase metode mine survey menggunakan cut and fill, metode truck count menggunakan data ritase dan timbangan. Identifikasi penyebab perbedaan tonase menggunakan analisis fishbone. Pada progres pertama, tonase mine survey untuk Seam 22 dan Seam 19 masing-masing sebesar 47.185,14 ton dan 5.768,56 ton, sedangkan truck count sebesar 45.846,64 ton dan 5.708,75 ton. Pada progres kedua, tonase mine survey sebesar 54.661,23 ton dan 4.653,49 ton, sedangkan truck count sebesar 53.313,09 ton dan 4.650,68 ton. Berdasarkan analisis fishbone, perbedaan tonase dipengaruhi oleh faktor manusia, lingkungan, metode pengukuran, dan karakteristik material. Selisih tonase yang diperoleh masih berada dalam batas toleransi operasional perusahaan, sehingga kedua metode dapat digunakan sebagai dasar evaluasi produksi dengan mempertimbangkan faktor-faktor yang memengaruhi akurasi perhitungan. Kata kunci: cut and fill, fishbone, mine survey, tonase batubara, truck count
Co-Authors Abdul Malik Adit Ajie Nugraha Agus Winarno Agus Winarno Agus Winarno, Agus Agus Winarno Ainayah Al Fatihah Albertus Juvensius Pontus Alfiyanda, Ahmad Ardhan Ismail Ardian Saputra Arya Lawing Sembiring Bandaso, Surya Bunga Bunga Deni Saldi Devi, Shalaho Dina Dina Devy, Shalaho Dwi T. S. Fambudi Evita Endar Apriliana Fajar Ramadhan Fauzan Dwi Syahputra Febryantho Pasiakan Ferry Potik Kurniawan Ferry Samuel Maringan Siregar Fransiska Yuniari Saksono Galih Handhika Galih Handhika Gideon Samari Suno Ginting, Emdananta Gokma Rohartama Gultom Harjuni Hasan Harjuni Hasan Harjuni Hasan Hasan , Harjuni Hikmawati Ilma Nurjanah Indri Tenri Datu Indri Tenri Datu Irfan Sauri Joniardi , Jovanda Ego Prisitama Jovensius Pontus, Albertus Ketut Swarningsih Koeshadi Sasmito Lhita Respati, Lucia Liganic Saprudin Litha Respati, Lucia Lucia Litha Respati Lucia Litha Respati Lucia Litha Respati Lucia Litha Respati M Dandy Al Fansya Miranda, Virgita Muhammad Ashar Alias Suara MUHAMMAD ILHAM Muhammad Rofy Fauzan Mushawir Mushawir Mustafa Wadi Mutiara Eli Nimasari Nimasari Nirwana Putri Nugroho, Windhu Nurfaysa Permadi, Singgih Respati, Lucia Litha Rety Winonazada Rety Winonazada Revia Oktaviani Revia Oktaviani Rexy Maulana Rofi Taufiqurrahman Roland Fatar Fernados Sirait Ruslan Patur S. Depari, Raja Kami Saeppudin, Ahmad Sakdillah Sakdillah Sakdillah S Sakdillah Sakdillah Saksono, Fransiska Yuniari Saskiyah Saskiyah Satriana Aulia, Andi Sendana, Aprianto Aris Shalaho Dina Devi Shalaho Dina Devy Shalaho Dina Devy Shalaho Dyna Devy Sitepu, Anysa Ariel Siti Fadlah Musarofah Tommy Trides Tommy Trides Tommy Trides Tommy Trides Tommy Trides Tommy Trides Trides, Tommy Upiani, Ihsan Vivi Widiawati windhu Nugroho Windhu Nugroho windhu Yeriko, Kamril Yosia Paonganan Zwageri, Rizky