PT. Bukit Asam, Tbk is a company that is actively engaged in coal mining. One of the pits owned by PT. Bukit Asam, Tbk, namely Pit 2 Banko Barat, will reach its economic limit, so a reserve conservation plan is needed in an effort to maximize the reserves in Pit 2 Banko Barat. The reserve optimization plan is the implementation of mining using the auger mining method as a reserve maximization. …
PT. Jasa Laksa Utama is a coal mining company that is part of PT. Bara Alam Utama, located in Lahat Regency, South Sumatra Province. Results of company's coal production are stored in stockpile. Problem that occurs in this company is stockpile management that has not been going well due to high coal in that exceeds coal out, so there is coal final stock and it can cause difficulty in implementi…
PT. Bara Permata Mining merupakan salah satu kontraktor perusahaan tambang batubara yang terletak di desa Mekar jadi Kecamatan Sungai Lilin, kabupaten Musi Banyuasin.Sumatera Selatan. Sistem Penambangan yang diterapkan di PT. Bara Permata Mining menggunakan sistem tambang terbuka dengan bentuk kegiatan penambangan menggunakan metode konvesional, kegiatan penambangan yang dilakukan di PT. Bara P…
PT Tambang Bukit Tambi is a subsidiary of PT Nan Riang which is located in Padang Kelpo Village, Maro Sebu Ulu District, Batanghari Regency, Jambi Province. In this study, analysis of potential hazards and risk control was carried out using the Hazard Identification Risk Assessment and Risk Control (HIRARC) method. With this HIRARC method, we can identify the hazards and the hazard character of…
The Muara Enim Formation is one of the largest coal-producing formations in Indonesia, located in South Sumatra. This research area is located in the BME PIT Kungkilan Area, Lahat Regency, South Sumatra. One of the disturbing factors in the coal mining process is the presence of silicified coal in the coal seams. Silicified coal is an organic material that has died and then precipitated, then t…
Gasification technology is currently advancing with various types of gasification reactors. These reactors have different types and characteristics of material feeding suitable for raw materials, and Indonesia possesses various coal qualities, necessitating research to determine the appropriate gasification reactor type based on coal rank. A simulation of gasification is conducted to determine …
PT. BIMA PUTRA ABADI CITRANUSA (BPAC) IS A COMPANY ENGAGED IN THE MINING SECTOR WITH AN AREA OF 286 HECTARES OF IUP EXPLORATION. IN MARCH 2022 THE COAL PRODUCTION TARGET AT PIT 1 LUBUK BETUNG WAS 220,000 TONS, WHILE ONLY 181,768.80 TONS WERE REALIZED WITH A PRODUCTION ACHIEVEMENT OF 83% OF THE TARGETED PRODUCTION TARGET. THIS RESEARCH AIMS TO STRIVE FOR BETTER AND MORE EFFICIENT MINING ACTIVITI…
PT Putra Muba Coal (PMC) is located in Sungai Lilin District, Musi Banyuasin Regency. PT PMC set a coal production target of 3 semesters of 1850,000 tons. To meet the production target, PT PMC plans to mine the Abimanyu pit, so a scheduled, safe, and economical pit design plan is needed and can support the achievement of the planned production target. The maximum value of the stripping ratio is…
PT. Bukit Asam Tbk is one of the mining companies in Indonesia, which is engaged in the mining and sale of coal commodities. Coal mining activities at PT Bukit Asam Tbk are designed in monthly mining sequences. The reality on the ground shows that there is a discrepancy between the actual situation on the ground and the mining plan. This study aims to determine the achievement of production bas…
Coal mining companies have a place to accommodate the results of temporary economic minerals for a long time and then carry out marketing or the stockpile area. Coal hoarding for a long time will experience land subsidence or settlement, resulting in the reduced economic value of coal. Settlement due to loading requires consolidation analysis. The consolidation process shrinks the volume or voi…
PT Kideco Jaya Agung is a company engaged in coal mining and uses an open pit mining system. During the rainy season, the flow of water entering the mining area will be mixed with the solid material it is traveling through and stagnate in temporary water storage ponds or sumps, turning it into mud. The coal production process is hampered because the coal to be mined is submerged by water and mu…
PT Tunas Jaya Perkasa adalah perusahaan kontraktor batubara yang mengerjakan jobsite PT TRUST-BEK. Ketidaktercapaian target produksi di tahun 2022 membuat perusahaan ingin meningkatkan target produksinya. Sehingga perlu direncanakan dan dilakukan pendesainan ulang dari bukaan pit, kapasitas disposal, dan jumlah kebutuhan alat agar menunjang ketercapaian produksi pada tahun 2023. Perencanaan sek…
PT Semen Baturaja (Persero) Tbk. adalah perusahaan dengan komoditas industri di bidang semen. Produk yang diolah berupa batu gamping. Batu gamping di daerah ini ditambang menggunakan metode tambang terbuka (surface mining) dengan sistemtambang kuari (quarry mine). Lokasi peledakan yang dekat dengan pemukiman warga menjadikan ground vibration menjadi salah satu dampak hasil peledakan yang diperh…
PT Semen Baturaja (Persero) Tbk. adalah perusahaan dengan komoditas industri di bidang semen. Produk yang diolah berupa batu gamping. Batu gamping di daerah ini ditambang menggunakan metode tambang terbuka (surface mining) dengan sistemtambang kuari (quarry mine). Lokasi peledakan yang dekat dengan pemukiman warga menjadikan ground vibration menjadi salah satu dampak hasil peledakan yang diperh…
Coal is one of the economic supports, which is usually used as fuel for PLTUs, the main fuel for the production of steel, cement, chemical and pharmaceutical industries. PT XYZ is a company operating in the mining industry. PT XYZ's reserves are 48,836,214. In this research, the discounted cash flow method is used which takes into account future interest rates, then a sensitivity analysis is ca…
Penelitian berada di daerah Beringin Makmur 2, Kabupaten Musi Rawas Utara. Secara geologi daerah telitian berada pada Formasi Muaraenim. Adapun tujuan penelitian ini yaitu dapat melakukan pemodelan geologi yang dimulai urutan stratigrafi lalu rekontruksi struktur geologi kemudian pembuatan pemodelan geometri batubara lalu perhitungan estimasi sumberdaya batubara. Tahapan yang digunakan pada pen…
PT Bukit Asam Tbk. is a coal mining company located at Tanjung Enim, South Sumatra Province. This research was conducted due to a heavy rain occured in October 2022 which makes the sump’s partition breaking. Water keeps entering the sump too because the ring canal is not long enough to keep the water away from getting into the sump, it is feared that this could disrupt the production. Therefo…
PT Bima Putra Abadi Citranusa produces coal under the Bima-48 brand in an effort to meet consumer needs. Coal produced must be in accordance with consumer demand with agreed product specifications. Problems that arise from coal quality are changes in coal quality parameters caused by several mining activities so that this will affect the coal benchmark price (HPB). The problem was solved throug…
PT Banjarsari Pribumi is located in Lahat Regency, South Sumatera Province. Which is a subsidiary of PT Titan Infra Energy and has 3 contractors namely PT Manggala Usaha Manunggal, PT Anugerah Bumi Lestari and PT Anugerah Covindo Indonesia. PT Banjarsari Pribumi started mining coal since 2015. Currently, PT Banjarsari Pribumi mines two pits namely pit middle and pit south. In 2023 PT Banjarsari…
PT Bara Manunggal Sakti is one of the mining companies operating in the South Sumatra region. Extraction of coal from coal is often not in accordance with the previously intended recovery, and coal losses are shown during the mining process using open pit mining techniques. Therefore, not all available reserves can be obtained and used, which will inevitably result in losses for the company. Th…
To plan a coal utilization policy strategy, we need to know about the amount and quality of coal resources and reserves. Because coal is a reliable source for power plants that are widely used and have an economical price, as a result the demand for coal continues to grow, both for domestic and export needs, as well as the widespread use of coal. PT Triaryani is located in North Musi Rawas Rege…
PT. Bukit Asam Tbk (PT. BA) merupakan perusahaan yang bergerak dalam bidang penambangan batubara sejak tahun 1981 yang memiliki izin usaha pertambangan (IUP) operasi produksi batubara seluas 40.347 ha. Metode penambangan yang diterapkan adalah open pit mining. Kegiatan penambangan batubara di pit 3 banko barat pun terlihat bahwa sering terjadi genangan air di dalam pit tersebut hal ini disebabk…
PT Asta Maharanita (AM) adalah salah satu perusahaan yang bergerak di bidang industri pertambangan batubara yang berlokasi di Desa Kebur, Lahat, Sumatera Selatan. Penelitian ini dilakukan karena air yang jatuh ke daerah penambangan tidak dapat mengalir ke tempat yang seharusnya. Masalah ini dapat menghambat kegiatan penambangan yang menyebabkan tidak tercapainya produksi. Oleh karena itu diperl…
The open pit mining method applied to coal mining at PT Anugerah Covindo Indonesia has resulted in the formation of basins that have the potential to collect rainwater and groundwater. Water entering the mine forms puddles which disrupt the production process because there is no sump to control the water. Mine drainage system planning needs to be done to overcome the problems that exist at PT A…
PT Dizamatra Powerindo is a coal company with a Mining Business License Area of 971 Ha. The increasing price of coal makes the companies plan to increase production targets in the following year. In 2022 PT Dizamatra Powerindo's production target is 2.500.000 tons and plans to increase the production target until 3.000.000 tons. So it is necessary to plan and redesign the pit openings, disposal…
PT Era Energi Mandiri (PT EEM) is a coal mining company which is administratively located in South Merapi, Lahat, South Sumatra. PT EEM has the obligation to reclaim disposal with an area of 77.48 ha. Based on the results of the study, the land arrangement used the Komatsu D85ESS bulldozer with a productivity of 53.81 BCM/hour and for 4,206.65 hours at a cost of Rp.4,560,771,431. Spreading of 3…
Operasi penambangan batubara dengan sistem open pit and open cut berimplikasi pada isu longsornya lereng baik pada high wall, side wall maupun low wall. Menilik kondisi tersebut diupayakan penggalian optimal dari bottom pit dan geometri low wall pada Pit A PT. Bukit Asam, Tbk saat dilakukan proses optimasi penambangan seam C dengan kondisi desain FK≥1.07 dan PoF
Penelitian dilakukan di daerah Kabupaten Musi Banyuasin, Sumatera Selatan. Fokus dari penelitian ini yaitu perhitungan ketebalan dan persebaran lapisan batubara berdasarkan analisis data logging geofisika berupa log gamma ray dan log densitas pada sumur pemboran dangkal. Secara geologi daerah penelitian berada pada Formasi Muaraenim yang memiliki umur pengendapan Miosen Tengah-Pliosen. Litologi…