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Journals Mining Engineering : Bina Tambang
Published by Universitas Negeri Padang
ISSN : -     EISSN : 23023333     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Atas dukungan dari jurusan Teknik Pertambangan dengan Penanggung Jawab Dekan Fakultas Teknik UNP (Drs. Ganefri,MPd, P.hd) bekerjasama dengan Ketua Jurusan Teknik Pertambangan (Drs.Bambang Heriyadi,MT) dan seluruh Dosen Jurusan Teknik Pertambangan Fakultas Teknik Universitas Negeri Padang. Jurnal ini terbentuk dan didukung penuh untuk sarana kretifitas Dosen dan Mahasiswa Teknik Pertambangan.
Arjuna Subject : -
Articles 609 Documents
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Kajian Analisis Pengaruh Geometri Peledakan Terhadap Fragmentasi Hasil Peledakan Batugamping pada PT Diamond Alfa Propertindo Arya Alvito Syafri; Aulia Hidayat Burhamidar
Journals Mining Engineering : Bina Tambang Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i2.129086

Abstract

Fragmentasi batuan telah menjadi perhatian dari banyak penelitian karena dianggap sebagai aspek yang paling penting dalam peledakan karena hal ini mempengaruhi biaya pengeboran, peledakan, dan efisiensi dari semua subsistem seperti pemuatan, pengangkutan, dan peremukan pada operasi penambangan. Untuk mendapatkan fragmentasi batuan yang bagus diperlukan perencanaan geometri peledakan dengan matang. Geometri peledakan merupakan salah satu parameter yang penting dalam menghasilkan fragmentasi batuan yang baik dalam sebuah kegiatan peledakan. Karena masing-masing dari geometri memiliki pengaruh terhadap fragmentasi batuan. Pada studi kasus kali ini ingin melihat bagaimana pengaruh dari geometri peledakan terhadap fragmentasi batuan dengan cara image analysis dan analisis statistik. Setelah dilakukan analisis didapatkan pengaruh dari masing-masing parameter geometri peledakan terhadap fragmentasi dengan nilai R2 yaitu burden (0,25), spasi (0,07), stemming (0,42), kedalaman lubang (0,67), kolom isian (0,16).
Effect of Water and Chemical Spray on Quality Parameters TM, Ash, and CV of E4700 Product Coal at PT Adaro Indonesia Site Kelanis, South Barito Regency, Central Kalimantan Rinaldi Suntana; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i1s.127897

Abstract

PT Adaro Indonesia is a coal producer that produces several types of coal using standard doses. However, to improve the quality of E4700 coal, the company needs to examine the effect of chemical use on coal quality. This study aims to determine the effect of the use of dust suppressant chemicals on the value of coal quality parameters, identify variables that have a significant effect on the calorific value of coal, and analyze the concentration level of chemicals that have a significant effect on changes in the value of quality parameters in E4700 coal. Based on the analysis, after spraying with chemicals, there is a change in the value of coal quality parameters. When using a chemical concentration of 25 ppm, there was a change in the value of Total Moisture by -0.62%, Ash by -0.04%, and calories (CV) by 47 cal/g. At a concentration of 35 ppm, the Total Moisture value changed by -1.58%, Ash by -0.16%, and calories (CV) by 117 cal/g. And at 50 ppm concentration, there was a change in Total Moisture value of -1.96%, Ash of -0.24%, and calories (CV) of 142 cal/g. These results indicate that the use of chemicals affects the quality of E4700 coal. This study also used multiple linear regression statistical tests to obtain the significance value of the Total Moisture variable.
Uji Kadar Cassiterite pada Pasir Sisa Hasil Pengolahan di Tambang Kecil Perusahaan 2.6 Air Gemuruh PT Timah Tbk Humaira Sabrina; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 10, No 1 (2025): Journals Mining Engineering: Bina Tambang (On Progress)
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i3.130677

Abstract

Analysis of Slope Stability in the Coal Mining Area of KUD Sinamar Sakato, Jorong Sinamar, Nagari Sinamar, Asam Jujuhan, Dharmasraya, West Sumatera Dimas Agung Hermawan.HL; Yoszi Mingsi Anaperta; Heri Prabowo; Sultan Muhammad Taufik
Journals Mining Engineering : Bina Tambang Vol 9, No 1 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i1.127725

Abstract

KUD Sinamar Sakato conducts mining with open pit mining method, an open pit mining will always face the problem of slope stability, if the slope formed from the excavation is not considered properly, it can lead to potential landslides. Based on observation data, KUD Sinamar Sakato has a slope with a height of 78 metres and an angle of 78o, KUD Sinamar Sakato also does not have information about the physical and mechanical properties of the slope of the Mining Pit, making it difficult for companies to conduct geotechnical studies. Based on the analysis of safety factors using slide v 6.0 software using the Morgenstern-Price method, the slopes of KUD Sinamar Sakato are unsafe in saturated conditions which have FK of 1.095, so it is necessary to make improvements to the slope geometry, the improvements made are reducing the slope of the slope to 73o and the resulting saturated FK is 1.360, the slope is in a safe condition, then the second recommendation is to add a bench without changing the angle, where the bench is added at a height of 35 metres with a bench width of 4 metres, the saturated FK is 1.361, where the slope is in a safe condition.
Analisis Kestabilan Lubang Bukaan Pada Lubang D-12 Tambang Bawah Tanah Batubara Berdasarkan Metode RMR-System PT. Dasrat Sarana Arang Sejati, Parambahan, Kecamatan Talawi, Kota Sawahlunto, Sumatera Barat Berryl Hannah; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 8, No 3 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i3.126029

Abstract

This study aims to determine the rock mass class, support strength value, opening hole safety factor and support safety factor, as well as safe support recommendations based on rock class and support dimensions. Since the point in underground mining problems is usually related to the selection of supports and all underground mining activities are carried out by making openings, the opening holes are made by maintaining their stability to be safe for workers and mining equipment to be used and to ensure the safety of workers and the economic value of their use. In identifying the characteristics of the rock mass in an opening hole can be done by several methods. One of them is the geomechanical method (Rock Mass Rating System). This method will produce a rock mass class, rock strength, potential collapse, opening hole stability and get recommendations for a suitable support system based on the results of RMR ground support, and get the condition of the wooden support used. From the results of the analysis there are several parameters of the RMR method that have been carried out, in the D-12 Tunnel B hole for coal is in class III (fair rock) with an RMR of 59 with a Stand Up Time of 83 Days with a maximum width or length of 5 m without the help of support. And for silstone is in class II (good rock) with RMR of 64 and Stand Up Time is 354 days with a maximum width or length of 5 m without support. The value of the wood support safety factor is known, the actual FK cap has a value of 1.322 and the actual FK side post is 5.586, where the FK cap does not meet the safe requirements set out in KEPMEN 1827K/30 / MEM / 2018. Then after evaluating the support distance, the FK cap is obtained to be 1.5. Based on the safety factor, the recommendation for a good and safe buffer system for the company to use is with a wood diameter of 15 cm and a buffer distance of 1.61 m.
Analisis Biaya Reklamasi Kegiatan Penambangan Batubara pada Disposal Area Blok 5 di PT Inti Bara Perdana Riam Marlina A; Rangga Agung Pribadi Heriawan; Jukepsa Andas; Bagas Aditya Permana
Journals Mining Engineering : Bina Tambang Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i2.129755

Abstract

PT Inti Bara Perdana melakukan kegiatan reklamasi lahan di area blok 5 dimana area yang dilakukan kegiatan reklamasi itu bekas disposal area dan belum ada dilakukan perhitungan biaya reklamasi pada area blok 5 triwulan 3, luas disposal area yang akan dilakukan kegiatan reklamasi seluas 7,466 ha. Metode penelitian ini menggunakan data primer yang digunakan yaitu cycle time alat excavator Caterpillar PC 320, alat dump truck Hino 500 FM 260 JD, dan bulldozer Caterpillar D6R, dan data sekunder yang digunakan yaitu peta rencana reklamasi dengan luas lahan 7,466 hektar, spesifikasi alat excavator Caterpillar PC 320, dump truck Hino 500 FM 260 JD, dan bulldozer Caterpillar D6R, serta daftar harga: bahan bakar minyak (bbm), bibit tanaman, pupuk, dan gaji karyawan. Didapatkan hasil total penebaran top soil yaitu sebesar Rp. 320.804.366,00. Jadi total keseluruhan biaya reklamasi yaitu penjumlahan biaya langsung dan biaya tidak langsung, maka didapatkan hasil biaya langsung sebesar Rp. 397.920.256,00 sedangkan biaya tidak langsung sebesar Rp. 126.936.562,00. Jadi jumlah biaya reklamasi disposal area blok 5 triwulan 3 tahun 2022 dengan total biaya sebesar Rp. 524.856.818,00, dan didapatkan total biaya per-hektar luasan disposal area blok 5 triwulan 3 tahun 2022 yaitu sebesar Rp. 70.299.600,00.
Analisis Keserasian Alat Gali Muat dan Angkut Batubara Dalam Produksi Overburden Di Pit Alam 1-3 Di PT. Muara Alam Sejahtera, Kabupaten Lahat, Sumatera Selatan Ari Dwi Ananda; Harizona Aulia Rahman; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 8, No 3 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i3.126005

Abstract

Excavation equipment is loaded by excavators and transported by coal dump trucks from the mining front to the stockpile and transportation of overburden to the disposal. Smooth production must of course be supported by the type of excavator with the appropriate bucket capacity of the dump truck used so that there is no queue so that coal production is in accordance with the plan and is more efficient for using production equipment and affects costs later. Coal excavation-loading equipment production on Hitachi ZX350 LC excavator in one month amounted to 95.984 tons / month. And the production of Dongfeng Tianlong KC 4 × 6 dump truck conveyance in one month is 14.953 tons / month.The production of overburden excavation tools on the XCMG XE-1250 excavator in one month amounted to 194.548,73 Bcm / month. And the production of LGMG CMT 106 conveyance in one month amounted to 21.843,5 Bcm / month. To make the match factor value = 1.00 or close to 1.00, it is better to reduce it to 9 conveyance tools (dump trucks) only (obtained value = 1.01) for the overburden loading and unloading travel process to the disposal area. And for coal equipment loading and unloading travel, namely the addition of conveyance tools (dump trucks) is needed to be 6 dump trucks (obtained value 0.93) in order to achieve compatibility of excavation-loading tools so that transportation and efficient use of tools.
Optimalisasi Kinerja Alat Gali-Muat dan Alat Angkut untuk Mencapai Target Produksi Overburden dengan Menggunakan Metode Quality Control Circle di Pit 1 Timur pada Tambang Terbuka PT Allied Indo Coal Jaya, Parambahan, Sawahlunto, Sumatera Barat Kurniawan Kurniawan; Tri Gamela Saldy
Journals Mining Engineering : Bina Tambang Vol 9, No 2 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i2.128118

Abstract

Tidak efisiennya penggunaan alat gali dan angkut di PT Allied Indo Coal Jaya menyebabkan kinerja alat bongkar muat tidak optimal sehingga realisasi produktivitas pada Maret 2023 hanya sebesar 61.870,72 bcm/bulan sedangkan target perusahaan sebesar 110.000 bcm/bulan. Kajian manajemen produksi dilakukan dengan menerapkan metode Quality Control Cycle (QCC). Metode ini memungkinkan dilakukannya peninjauan terhadap optimalisasi kinerja alat gali muat dan kendala yang dialami selama proses produksi. Penelitian diawali dengan melakukan perhitungan ulang kondisi awal dengan memperhatikan peralatan penambangan yang digunakan yaitu excavator CAT 330D2 L dan DT HINO 500 FM 260 JD. Produktivitas aktual 2 unit excavator CAT 330D2 L mencapai 62.381,28 bcm/bulan dan DT HINO FM 260 JD mencapai 58.027,58 bcm/bulan dengan jumlah DT sebanyak 8 unit, match factor alat berat mencapai 0,97. Setelah dilakukan evaluasi pada Diagram Tulang Ikan, diketahui terdapat permasalahan besar yaitu faktor lingkungan, peralatan, material dan tenaga kerja yang mempengaruhi waktu kerja. Hasil penelitian menunjukkan produktivitas meningkat dengan peralatan 2 unit excavator CAT 330D2 L sebesar 110.461,46 bcm/bulan dan produksi 8 unit DT meningkat sebesar 106.962.578 bcm.
Pemanfaatan Gravel sebagai Material Stemming Guna Mengantisipasi Terjadinya Ground Vibration dan Air Blast Berlebih pada Kegiatan Peledakan Lapisan Overburden di Pit Timur IUP PT Bungo Bara Makmur, Site PT Kuansing Inti Makmur, Jambi Tiara Adha Vadina; Aulia Hidayat Burhamidar
Journals Mining Engineering : Bina Tambang Vol 10, No 1 (2025): Journals Mining Engineering: Bina Tambang (On Progress)
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i3.130708

Abstract

Proses peledakan yang dilakukan di PT. Kuansing Inti Makmur (PT. KIM), dengan fokus pada penggunaan material stemming, khususnya gravel dan cutting hasil pemboran. Stemming berfungsi untuk menyumbat lubang ledak guna mengontrol gas hasil peledakan, serta mencegah terjadinya ground vibration dan air blast yang dapat membahayakan keselamatan dan lingkungan sekitar. Dalam konteks ini, gravel dipilih sebagai material stemming karena kemampuannya dalam menahan energi peledakan, dengan ukuran yang optimal sekitar 5 x 6 cm. Metodologi yang digunakan dalam penelitian ini meliputi studi literatur, pengamatan langsung, serta pengumpulan data primer dan sekunder. Data yang dikumpulkan mencakup kondisi lubang ledak dan kebutuhan gravel yang diperlukan untuk proses peledakan. Penelitian ini juga menekankan pentingnya penggunaan stemming dalam mengurangi getaran dan suara yang dihasilkan dari peledakan, terutama mengingat lokasi PT. KIM yang berdekatan dengan pemukiman warga. Hasil analisis menunjukkan bahwa terdapat insiden stemming injection yang menyebabkan keluhan dari masyarakat. Oleh karena itu, perusahaan berupaya untuk mengantisipasi kejadian serupa di masa depan dengan melakukan perbaikan pada metode stemming yang digunakan. Data tumbukan yang diambil selama beberapa hari juga dianalisis untuk menilai efektivitas penggunaan gravel sebagai material stemming dalam proses peledakan. Kejadian stemming ejection dapat dihindari dengan perbaikan pada metode stemming yang diterapkan, penggunaan gravel sebagai material stemming sudah baik, penyesuaian dengan kondisi lubang ledak tetap diperlukan.
Geometry Analysis of Prabumulih Mine Main Road at PT. Kalimantan Prima Persada Jobsite Pelh, West Merapi District, Lahat Regency, South Sumatera Fariq Dwi Satria Diansa; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 9, No 1 (2024): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i1.127746

Abstract

Coal is a resource consumed by the world as the main ingredient in power generation and the staple material for steel and cement production. Within the Priyamanaya Energi Pit (PELH), which is a mining site, PT Kalimantan Prima Persada, which is a contractor, is involved in the process of coal mining.Within the Priyamanaya Energi Pit (PELH), which is a mining site, PT Kalimantan Prima Persada, which is a contractor, is involved in the process of coal mining. Coal extraction is being carried out at the Priyamanaya Energi Pit (PELH), which is a mining facility owned and operated by PT Kalimantan Prima Persada, a contractor. An alternate path that goes through this ravine is now available for usage by the Prabumulih Road, which was once used by a significant amount of traffic. According to observations made in the field, certain sections of road do not have the optimal road shape. Starting from the Cross Slope, several sectors are not suitable, whose ideal value is 2-5%, but the actual conditions are only around 1.5 2%, there is no water rope, the road width is not ideal where it has a width of less than 25 meters with an ideal value of 25 meters, and there is no Separator (Median), there is Superelevation with an ideal value of 4% but in actual conditions only around 1.4%. However, some parameters are by the actual, such as grade and safety berm. As a result, the road geometry is not ideal, causing the road conditions to be bad, resulting in the conveyance speed not being achieved.

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