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All Journal Jurnal Pertambangan PROMINE IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Himasapta JURNAL TEKNIK PATRA AKADEMIKA Jurnal Ekonomi, Manajemen, Akuntansi dan Keuangan Inovatif: Jurnal Ekononi, Manajemen, Akuntansi, Bisnis Digital dan Kewirausahaan Sinergi Polmed : Jurnal Ilmiah Teknik Mesin MINERAL

Edwin Harsiga

Program Studi Teknik Pertambangan, Fakultas Sains Dan Teknik, Universitas Bangka Belitung

Author-ID : 3618730

Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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CALCULATION OF PIT 2 PRODUCED OVERBURDEN VOLUME AND THE ANALYSIS OF PREPARATION OF PIT 1 MINE VOID UTILIZATION AT SUPAT BLOCK PT. BATURONA ADIMULYA MUSI BANYUASIN, SOUTH SUMATERA Edwin Harsiga; Taufik Toha; Syamsul Komar
Indonesian Journal of Environmental Management and Sustainability Vol. 2 No. 2 (2018): June
Publisher : Research Centre of Inorganic Materials and Complexs

PT BaturonaAdimulya is a coal mining company located in BabatSupatSubdistrict, MusiBanyuasin Regency, South Sumatera Province. Based on the calculation of overburden digging volume at Pit 2 with progress survey that is measurement using total station sokkia set 3010 instrument and the processing and calculation using surpac 6.5.1 result in overburden volume or cover ground 251,941 BCM. Coal mining in open pit will cause environmental changes, either small hills or mined holes (voids). The burden removing from Pit 2 by backfilling method in the mining area will minimize the voids that occur. PT BaturonaAdimulya has void in Pit 1 as large as 4.8 Ha, and will do backfilling that requires overburden material as much as 295.721 BCM / Ha and top soil as much as 33,600 LCM / Ha. The voids left at the end of the mine without any utilization planning have the potential to cause undesirable impacts on the environment. Therefore, PT BaturonaAdimulya is planning to revegetate the void area so it can be utilized and become a green field again as before

ANALISIS KONSUMSI BAHAN BAKAR ALAT ANGKUT ARTICULATED DUMP TRUCK CAT D400E DITINJAU DARI PENGARUH PERAWATAN, UMUR ALAT ANGKUT PADA PENGANGKUTAN OVERBURDEN DI PT BATURONA ADIMULYA, MUSI BANYUASIN, SUMATERA SELATAN edwin harsiga; eko indra novianto
Jurnal Teknik Patra Akademika Vol 8 No 02 (2017): Jurnal Teknik Patra Akademika
Publisher : Politeknik Akamigas Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.754 KB)

Fuel consumption is an important factor that needs to be considered in conducting the activities of coal and overburden digging. High fuel consumption can be influenced by factor sharing, including: tool factor (maintenance and tool life), work field factor, and load factor. If fuel consumption increases it will cause losses for the company. Therefore, the company is required to perform maintenance on the tool so that it can make the equipment longer and also the fuel consumption can be minimized. From the results of research and calculations, tool age and maintenance can affect fuel consumption. Research has been conducted on two tools that have different tool life and also the treatment of both D400 series 1 and series 2 articulated dump truck devices. Articulated dump truck series 1 is 19 years old and series 2 is 18 years old and for articulated dump truck series 2 has been done Replacement of air filters. From this difference we can see the difference in fuel consumption of articulated dump trucks series 1 and series 2 per hour, for articulated dump truck series 1 consumes fuel: 16,588 liter / hour for 1 unit, while for articulated dump truck D400 series 2 consumes fuel: 15,741 liters / hour for 1 unit, with the difference in fuel consumption for 1 hour 1 unit of 1,053 liters.

A ANALISA FUEL RATIO PLAN DAN ACTUAL ALAT ANGKUT ARTICULATED DUMP TRUCK VOLVO A35E DAN A40G PADA PENGANGKUTAN OVERBURDEN DI PT LDA, LAHAT, SUMATERA SELATAN Edwin Harsiga; Andini Puspita Rahayu
Jurnal Teknik Patra Akademika Vol 12 No 02 (2021): Jurnal Teknik Patra Akademika
Publisher : Politeknik Akamigas Palembang

PT LDA adalah perusahaan yang bergerak dalam jasa penambangan yang merupakan perusahaan yang bergerak dalam bisnis kontraktor. Kebutuhan terbesar dalam menunjang kegiatan penambangan adalah peralatan mekanis. Penggunaan bahan bakar yang berlebihan dapat berpengaruh terhadap keuntungan perusahaan. Perbandingan antara konsumsi bahan bakar dengan produktivitas disebut fuel ratio. Apabila fuel ratio actual lebih kecil dari fuel ratio plan maka perusahaan akan mendapat keuntungan begitu juga sebaliknya. Realisasi produktivitas pada bulan Maret untuk unit articulated dump truck Volvo A35E sebesar 69,225 BCM/jam dengan konsumsi bahan bakar 26,09 liter/jam dan untuk realisasi unit articulated dump truck Volvo A40G sebesar 75,780 BCM/jam dengan konsumsi bahan bakar 25,46 liter/jam. Sedangkan realisasi produktivitas pada bulan April untuk unit articulated dump truck Volvo A35E sebesar 60,197 BCM/jam dengan konsumsi bahan bakar 26,35 liter/jam dan untuk realisasi unit articulated dump truck Volvo A40G sebesar 64,764 BCM/jam dengan konsumsi bahan bakar 25,51 liter/jam. Pada bulan Maret fuel ratio plan untuk unit articulated dump truck Volvo A35E sebesar 0,327 liter/BCM sedangkan fuel ratio actual sebesar 0,376 liter/BCM dan fuel ratio plan untuk unit articulated dump truck Volvo A40G sebesar 0,294 liter/BCM sedangkan fuel ratio actual sebesar 0,335 liter/BCM. Pada bulan April fuel ratio plan untuk unit articulated dump truck Volvo A35E sebesar 0,366 liter/BCM sedangkan fuel ratio actual sebesar 0,437 dan fuel ratio plan untuk unit articulated dump truck Volvo A40G sebesar 0,329 liter/BCM sedangkan fuel ratio actual sebesar 0,393 liter/BCM. Karena fuel ratio actual lebih besar dari fuel ratio plan menunjukan kerugian yang dialami perusahaan. Kerugian yang dikeluarkan oleh PT Langgeng Daya Agrindo pada bulan Maret untuk unit articulated dump truck Volvo A35E sebesar Rp66.246.248,25 rupiah/bulan dan untuk unit articulated dump truck Volvo A40G kerugiannya sebesar Rp62.356.633,92 rupiah/bulan sedangkan pada bulan April untuk unit articulated dump truck Volvo A35E sebesar Rp63.806.893,69 rupiah/bulan dan untuk unit articulated dump truck Volvo A40G sebesar Rp72.985.401,21 rupiah/bulan.

E EVALUASI GEOMETRI JALAN ANGKUT MENGGUNAKAN STANDAR AASHTO UNTUK MENINGKATKAN PRODUKTIVITAS ALAT ANGKUT OVERBURDEN PADA PIT 1 PT BENAL AITI BARA PERKASA Roby Cahyadi; Trisna Perdana; Edwin Harsiga
Jurnal Teknik Patra Akademika Vol 12 No 02 (2021): Jurnal Teknik Patra Akademika
Publisher : Politeknik Akamigas Palembang

Pada judul yang diambil geometri jalan angkut overburden merupakan salah satu masalah dengan melihat produktivitas alat angkut overburden pada bulan April. Agar suatu produksi overburden dapat terpenuhi dengan pengeluaran biaya yang sekecil-kecilnya maka harus memperhatikan dan mengoptimalkan suatu keadaan berikut, lebar jalan angkut, kemiringan jalan, waktu edar (cycle time), cross slope dan front kerja yang kurang ideal. Kondisi aktual dari lebar jalan angkut di perusahaan dari front ke disposal area yaitu rata-rata 11 meter untuk jalan lurus dan pada tikungan 13,68 meter, namun berdasarkan perhitungan The American Association of State Highway and Tronsportation Officials (AASTHO) Manual Rural Highway Design 1973, lebar minimum jalan angkut agar dapat dilalui dengan baik oleh alat angkut dump truck Mercedes Benz Axor 2528 C adalah 8,7 meter untuk lajur lurus dan 12,74 meter untuk lajur tikungan. Berdasarkan di lapangan terdapat pada segmen D-E pada lajur lurus dan H-I pada lajur tikungan yang belum memenuhi standar jalan minimum. Disamping itu, ditinjau dari segi waktu edar (cycle time) dari front pit 1 ke disposal area memiliki waktu edar yang cukup lama yang disebabkan oleh antrian pada jalan angkut lajur lurus segmen D-E dan lajur tikungan segmen H-I yang mengakibatkan waktu tempuh (cycle time) alat angkut menjadi lebih lama, yaitu 12,007 menit, setelah dilakukan perbaikan jalan dengan menambah lebar jalan angkut menjadi 9,9663 menit maka waktu tempuh menjadi lebih singkat dengan produksi yang dihasilkan sebesar 222.694,5 BCM/bulan.

Analysis of the Realization of Operational Costs for Overburden Stripping and Coal Getting Maya Matofani; Edwin Harsiga; Aisyah Mey Ardiansyah
Jurnal Ekonomi, Manajemen, Akuntansi dan Keuangan Vol. 4 No. 1 (2023): Januari
Publisher : Penerbit ADM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53697/emak.v4i1.1124

Mining activities require mechanical equipment and costs to support production targets. Operational costs greatly affect the company's income, so it is necessary to analyze operational costs. This study analyzes the realization of operational costs to determine the causes of losses experienced by the company. The analysis process is carried out by estimating coal getting production to find out the number of tools used, namely 1 unit of digging equipment and 6 units of conveyance equipment with operational costs (fuel, oil usage, filter usage, labor wages, spare parts, grease usage, tire usage) , and equipment rental). The estimated operational costs incurred for the production of coal getting amounted to IDR 762,938,772 while the realization was IDR 302,819,845 using 1 unit of digging equipment and 5 units of transportation equipment. Estimated operational costs for stripping overburden amounted to Rp. 2,728,246,056 using 2 units of digging equipment and 12 units of hauling equipment, while the realization was Rp. 1,327,850,880 using 2 units of digging equipment and 15 units of hauling equipment. Production realization in April 2019 overburden and coal getting stripping was not achieved, this was due to the large duration of rain and slippery time. The percentage of rain duration reaches 6 percent and slippery time reaches 27 percent. The total operational costs incurred for the production of coal getting amounted to IDR 1,630,670,724.50 with a coal price of IDR 450,000 / ton and actual production of 1,106.88 tons so that the revenue from coal sales in April 2019 was IDR 498,096,000. This resulted in the company experiencing a loss of IDR 1,132,574,725. The factors that caused the company to suffer losses were low production due to the many durations of slippery rain, the operational costs incurred were greater than the income from coal sales and the number of tools that stood by reached 24 percent.

Analisis Nilai Keekonomian Ketersediaan Kebutuhan Alat Penunjang Tambang untuk Operasional Pengupasan Overburden Dalam Meningkatkan Produktivitas Shovel PC3000E-6 Maya Matofani; Edwin Harsiga; Ayu Srimarta
Inovatif: Jurnal Ekonomi, Manajemen, Akuntansi, Bisnis Digital dan Kewirausahaan Vol. 2 No. 1 (2023): JANUARI 2023
Publisher : Pusat Riset Manajemen Dan Publikasi Ilmiah Serta Pengembangan Sumber Daya Manusia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55983/inov.v2i1.354

Pit 3East ElectrificationBanko Barat PT Bukit Asam, tbk has provided mining support equipment of 2 units of Komatsu D375A bulldozer, 4 units of Komatsu D85SS bulldozer, 1 unit of MG825 grader and 1 unit compactor, with rental status. However, the availability of supporting equipment that has been provided can not fully support the April 2018 production target Therefore it is necessary to recalculate the amount of supporting equipment that should be provided in April 2018. After the improvement efforts in the form of additional supporting equipment, the total production capable of producing PC3000E-6 shovel amounted to 729,932 bcm / month, an increase of production amounted to 329,535 bcm / month.The result of calculation of requirement of mine supporting tool based on productivity of each tool can be concluded that the number of tools that should be provided are 2 units of Komatsu D375A bulldozer, 5 bulldozer D85SS units, 3 MG825A grader units and 2 compactor units. Based on calculations made the company issued a rental fee lower than the actual APT rental fee of Rp7.769 / bcm which is Rp 5,919 / bcm, making it more profitable than the previous conditions.

PERENCANAAN DESIGN DISPOSAL MENGGUNAKAN SOFTWARE MINESCAPE 5.7 PADA PT BAU, SUMATERA SELATAN E. Harsiga; R. Pebrianto; A. A. Darmawan; S. Hardianti
Jurnal Pertambangan Vol 6 No 4 (2022): November 2022
Publisher : Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jp.v6i4.1259

Pada kegiatan pengupasan overburden, overburden yang telah dikupas kemudian diangkut ke tempat penimbunan yang disebut disposal, oleh karena itu diperlukan perencanaan design disposal. Tujuan penelitian ini adalah membuat rancangan design disposal dari tahun 2022 sampai tahun 2027 serta menganalisis faktor keamanan timbunannya. Proses rancangan menggunakan software minescape 5.7 berdasarkan data produksi yang telah dihitung sebelumnya dan nantinya data produksi akan menjadi acuan dalam pembuatan design disposal dengan kapasitas sebesar 13.600.000 BCM. Perencanaan design disposal dibagi menjadi 6 periode, dari tahun 2022 hingga 2027. Dari hasil perhitungan, diperoleh total volume design tahun 2022 sebesar 2.323.214,61 BCM dengan plan area 18,51 Ha, design tahun 2023 untuk kapasitasnya didapatkan sebesar 2.505.745,45 BCM, design tahun 2024 untuk volume yang didapatkan sebesar 2.187.450,03 BCM, design tahun 2025 sebesar 2.569.466,96 BCM dengan plan area 38,53 Ha, design tahun 2026 untuk kapasitas yang didapatkan sebesar 2.376.580,5 BCM dan di tahun 2027 untuk kapasitasnya sebesar 1.644.568,44 BCM. Untuk mengetahui faktor keamanannya menggunakan software rocscience slide v.6.0. guna menganalisis hasil design disposal yang sudah dibuat. Faktor keamanan yang didapatkan dari hasil analisis untuk design tahun 2022 yaitu 3,218, di tahun 2023 didapatkan faktor keamanan sebesar 3,712, tahun 2024 faktor keamanan yang didapatkan 1,965, lalu tahun 2025 didapatkan nilainya 1,822, kemudian tahun 2026 nilai faktor keamanannya 1,917 dan di tahun 2027 faktor keamanan yang didapatkan 1,834. Dari keseluruhan analisis yang dilakukan didapatkan bahwa hasil design dari tahun 2022 hingga 2027 aman untuk diaplikasikan.

Potensi Logam Tanah Jarang Wilayah Toboali Bangka Selatan Marwan Asof; Rosihan Pebrianto; Edwin Harsiga; Syarifudin Syarifudin
PROMINE Vol 10 No 1 (2022): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v10i1.3276

The Bangka Belitung Islands are an area traversed by the tin belt of Southeast Asia. This tin belt carries tin-bearing minerals and is associated with rare earth metals (LTJ). Toboali is a sub-district in South Bangka Regency. The exploration phase carried out by PT Timah made it possible to identify rare earth elements at the same time. Samples were taken using a sonic drilling machine to a depth of 5 meters. Every 1 meter 1 sample is taken which is put into a transparent plastic and labeled. There were 100 samples tested in the laboratory using X-RD (X-ray Diffraction), XRF, Scanning Electron Microscope (SEM) and Inductively Coupled Plasma (ICP). From the results of observations and laboratory analysis, it is known that there are 5 LTJ elements that are most dominantly found in each sample, namely Serium (Ce) an average of 61.92 ppm, Yttrium (Y) an average of 34.6 ppm, Lanthanum (La) an average of 27.55 ppm, Neodymium (Nd) an average of 27.55 and Samarium (Sm) an average of 2.82. Sampling or exploration using a sonic drilling machine needs to be evaluated to get a better level of sample and data accuracy

Analisis Sifat Mekanik Batuan Terhadap Kemampugaruan Bulldozer Dan Kemampugalian Excavator Untuk Mencapai Target Produksi Overburden PT Berau Coal Rosihan Pebrianto; Edwin Harsiga; Marwan Asof; Muhammad Dimas Thabrani
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4089

The research was conducted at Pit Q, PT Berau Coal with the aim of determining the productivity parameters of bulldozer ripping, excavator productivity, and factors affecting ripping activities on sandstone. The results showed that the material in pit q was sandstone which had a ucs value of 6.26 Mpa and a seismic velocity of 1751.63 m/s so the crossripping method was used so that the material was dismantled smaller. Based on ripper productivity, the relationship between the depth of penetration of the shank ripper and the speed of the bulldozer is obtained, productivity of the excavator is smaller if the space used by the ripper increases, so that the size of the material produced will be larger and the digging time of the excavator will increase. The influence of ripper activities is the depth of penetration that affects the speed of the bulldozer, the use of ripping space affects the digging time performance of the excavator too. Factors of the performance of the ripper are trapped material, ripper tip wear, and operator skills.

A ANALISIS BIAYA REALISASI KEGIATAN COAL HANDLING DENGAN WHEEL LOADER DI ROM 1 PT DIZAMATRA POWERINDO UNTUK SUPPLY KE PLTU KEBAN AGUNG Edwin Harsiga; Putri Virgania B.; Siti Hardianti
Jurnal Teknik Patra Akademika Vol 14 No 01 (2023): Jurnal Teknik Patra Akademika
Publisher : Politeknik Akamigas Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52506/jtpa.v14i01.192

Dalam kegiatan penambangan sangat erat kaitannya dengan biaya (cost) untuk mendukung target produksi. Biaya operasional sangat berpengaruh terhadap pendapatan perusahaan, sehingga perlu adanya analisis terhadap biaya operasional. Penelitian ini menganalisis perbandingan wheel loader Komatsu 380 dan wheel loader CAT 950 mana yang lebih efektif dan efisien untuk ditempatkan pada lokasi stock ROM dan stock canopy. Dari hasil analisis penulis tentang productivity dan biaya operasional maka rekomendasi 2 yang lebih efektif dan efisien untuk digunakan dengan peningkatan productivity sebesar 29,2 ton/jam yang sebelumnya productivity actual sebesar 276,84 ton/jam dan productivity rekomendasi 2 sebesar 306,04 ton/jam, sedangkan productivity actual dan productivity rekomendasi 2 wheel loader CAT 950 meningkat menjadi 10,57 ton/jam yang sebelumnya productivity actual sebesar 310,94 ton/jam dan productivity rekomendasi 2 sebesar 321,51 ton/jam dan biaya operasional yang dikeluarkan juga lebih efisien dikarenakan terjadinya penurunan biaya dari biaya operasional yang actual sebesar Rp208.210.260,00 sedangkan biaya operasional rekomendasi 2 sebesar Rp195.007.360,00 dengan selisih pengurangan biaya sebesar Rp13.202.900,00.

Co-Authors A. A. Darmawan Aisyah Mey Ardiansyah Andini Puspita Rahayu Anna Amelia Louisa Ardhi Lufthansyah Hidayat Ariksa, Jeri Ayu Srimarta Delita Ega Andini Diana Purbasari Diana Purbasari eko indra novianto Franto Harry Waristian Hidayat, Ardhi Lufthansyah Kadriadi, Kadriadi Lingga, Yesi Crystiyanti Hangelina Br Louisa, Anna Amelia Marwan Asof Marwan Asof maya Matofani Muhammad Dimas Thabrani Pebrianto, Rosihan Putri Virgania B. R. Pebrianto Rahmad Dani roby cahyadi Rosihan Pebrianto Rosihan Pebrianto S. Hardianti Saragi, Jandri Fan HT Silaban, Cindy Grestina Siti Hardianti Siti Hardianti Siti Hardianti, Siti Syamsul Komar Syarifudin Syarifudin Taufik Toha Trisna Perdana Waristian, Harry Yudi Setiawan Yunita Yunita

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