KAJIAN OPERASIONAL SELECTIVE BREAKER ROTARY (SBR) 02 DALAM MENGOPTIMALKAN KEB…

PT Bukit Asam (Persero) Tbk., manages a Mining Business License (IUP) covering an area of 40,347 hectares through the Tanjung Enim Mining Unit (UPTE), which encompasses four operational blocks: Banko Barat, Banko Tengah, Muara Tiga Besar, and Tambang Air Laya. This study was conducted at Pit 2, Banko Barat, at the Livestock Dump Hopper 4 (LSDH 4) unit, using an open-pit mining system that invol…

ANALISIS PENGARUH BIDANG DISKONTINUITAS TERHADAP FRAGMENTASI HASIL PELEDAKAN …

This research was conducted at the Pit Quarry of PT Bukit Asam (Persero) Tbk, specifically in the andesite mining area of Bukit Tapuan, with the objective of analyzing the influence of discontinuity plane orientation on the throw direction and fragmentation size distribution resulting from blasting activities. The research method included field observations using scanline mapping to obtain disc…

Buku Pengelolaan Bahan Galian Industri, Batubara, dan Minyak Bumi: Konsep hin…

Edition

-

ISBN/ISSN

978-602-386-977-0

Collation

xxiv, 462 hlm.; 23 cm

Series Title

-

Call Number

622 Suk P

METODE PENAMBANGAN TIMAH LAUT UNTUK MENGURANGI DAMPAK PENYEBARAN SEDIMEN DI P…

Tin mining is a major economic sector in Bangka Belitung and has shifted from land-based to offshore operations due to the declining availability of terrestrial reserves. Offshore mining activities using Kapal Keruk (KK), Kapal Isap Produksi (KIP), and Ponton Isap Produksi (PIP) have led to increased sedimentation and changes in water quality, necessitating an evaluation of marine environmental…

ANALISIS PENGARUH ZEOLIT SINTETIK 3 Å TERHADAP SIFAT HIGROSKOPIS BIODESEL(B4…

The hygroscopicity of biodiesel (B40) is a challenge in the processing of natural resources. This hygroscopicity significantly impacts quality degradation and combustion efficiency. Hygroscopicity is the property of a material to absorb or attract water vapor (humidity) from the surrounding air. Biodiesel contains ester groups (–COO–) that tend to form hydrogen bonds with water. These group…

DESAIN GEOMETRI LERENG TANAH TIMBUNAN BERDASARKAN KARAKTERISTIK MINERAL, KOHE…

A disposal area is an area where soil and overburden material are accumulated or piled up in an open-pit mining area. The more material removed, the larger the disposal area. PT Bukit Asam (PTBA) is one of the largest and oldest coal mines in South Sumatra. PTBA's disposal area at the Air Laya (TAL) mine is one of the largest dumps, extending up to 80 meters above the original ground. In 2017, …

CONTINUOUS IMPROVEMENT PROJECT UNTUK MENEKAN ANGKA KEJADIAN ACCIDENT DI SITE …

Statistics on mining accidents resulting in serious injuries and fatalities in Indonesia show an upward trend every year, with a significant increase in 2022. In response, the Director General of Mineral and Coal Mining tightened safety regulations, stipulating that operational activities in a mining area must be suspended following a fatality until improvements are implemented. PT Semesta Alam…

ANALISIS KADAR BIJIH TIMAH HASIL PENGGERUKKAN KAPAL ISAP PRODUKSI PT TIMAH TB…

The air table is a tool that utilizes gravity (gravity concentration) in the process of separating valuable minerals from it’s tailing based on differences in specific gravity, shape, and size with wind as a separating medium. This tool is in the form of a table that is mechanically driven by a driving machine and uses air / wind media generated by an air blower in the separation process. The…

ANALISIS KESTABILAN DAN PROBABILITAS KELONGSORAN LERENG TIMBUNAN DENGAN METOD…

Slope stability is an important factor in the sustainability of the mining process, a stable slope will reduce the potential for losses due to landslides. Analysis of the stability of backfilling slopes is considered very necessary, because landslides on backfilling slopes can cause quite large losses, both equipment loss and loss of life as well as lost opportunities. It is known that changes …

PERENCANAAN PENAMBANGAN BATUBARA BERSAMA DI BATAS IUP OPERASI PRODUKSI (SHARI…

The loss of coal reserves in mining concession boundaries is commonly caused by conventional pit designs based on administrative limits, which create boundary pillars and result in stranded coal. This study aims to evaluate the technical and economic feasibility of implementing a sharing wall mining concept as a coal resource conservation strategy in the boundary area of PT Merapi Energy Coalâ€â€¦

ANALISIS SISTEM NODAL UNTUK PEMILIHAN UKURAN TUBING SUMUR X-097 DAN X-017 DI …

Banyak faktor yang memengaruhi proses pengangkatan minyak ke permukaan, salah satu faktornya yaitu pemilihan ukuran tubing yang tepat untuk laju produksi optimal. Sumur X-097 dan X-017 di PT Pertamina Hulu Rokan Zona 4, Prabumulih Field menggunakan ukuran tubing 2,5 in(ID) di mana dengan menggunakan ukuran tubing tersebut laju produksi sumur X-097 sebesar 410 BFPD atau 34,83% dari laju produksi…

OPTIMASI PENGGUNAAN ENERGI DALAM PENGURANGAN UKURAN BATUKAPUR (SIZE REDUCTION…

Penelitian ini bertujuan untuk simulasi dan eksperimentasi skala laboratorium terhadap proses pengecilan ukuran batuan kapur yang dilakukan pabrik semen untuk memenuhi target yang direncanakan dengan penggunaan energi yang efisien. Studi kasus dalam penelitian ini adalah batu kapur asal PT Semen Baturaja (Persero) dan pengambilan sampel dilakukan di area Blok 48 dan 55 secara grab sampling deng…

ANALISIS PENGARUH GEOMETRI JALAN ANGKUT TERHADAP FUEL CONSUMPTION DUMP TRUCK …

Ideal haul road geometry can support the smooth running of coal hauling activities. Coal hauling activities use hauling equipment in the form of dump trucks which increase the cost of mining activities from the fuel consumption used. PT Bara Selaras Resources uses PX105AT for the East Pit and Mercedes-Benz Axor 2528C for the West Pit. The actual fuel consumption used is greater than what has be…

ANALISIS KINERJA FLEET DENGAN PENGEMBANGAN SISTEM PENCATATAN LOSS TIME MENGGU…

PT Bara Energi Lestari adalah perusahaan pemilik konsesi lahan pertambangan batubara seluas 1.495 ha di Gampong Seumambek, Kabupaten Nagan Raya, Provinsi Aceh. Kegiatan pengupasan lapisan overburden (OB Removal) saat ini dikerjakan di Pit Utara seluas 13,77 ha dengan jenis material berupa claystone dengan berat jenis 2,3 ton/m3. Pekerjaan pencatatan loss time pada kegiatan OB Removal di PT Bara…

PERENCANAAN TEKNIS SISTEM PENYALIRAN TAMBANG BATUBARA DI PIT 5 PT BATURONA AD…

PT Baturona Adimulya merupakan perusahaan jasa industri pertambangan yang termasuk dalam anggota grup perusahaan PT Ucoal Sumberdaya. PT Baturona sedang mengerjakan salah satu proyek di Kecamatan Keluang, Babat Supat, Kabupaten Musi Banyuasin, Provinsi Sumatera Selatan. Aktivitas penambangan memerlukan sistem penyaliran agar tidak menganggu aktivitas produksi. Pada Pit 5 tumpang tindih antara s…

ANALISIS VARIASI KECEPATAN TERHADAP TINGKAT KEAUSAN MATA BOR SKALA LABORATORIUM

The ease of accessing information on the internet has led to the emergence of many online shopping platforms, resulting in an increasing number of online courier companies providing safe package delivery services to consumers. This poses a risk to couriers who spend their working hours on the highways. Therefore, good safety riding practices are necessary to minimize traffic accidents. The purp…

EVALUASI KINERJA SUMUR INJEKSI TERHADAP SUMUR PRODUKSI DENGAN METODE HALL PLO…

Oil is one of the most important energy sources for human life. One of the common causes of the decline in oil production is the decrease in pressure in reservoirs, because the primary energy used to lift oil to the surface will be reduced over time. TheHall Plot method is most often used to analyze the performance of an injection well bymaking a curve, between pressures multiplied by a certain…

BACK ANALYSIS KESTABILAN LERENG DENGAN PARAMETER AIR REMBESAN SUNGAI LAWAI PI…

Bukit Asam menggunakan metode tambang terbuka. Slopes merupakan salah satu faktor terpenting dalam aktivitas pertambangan. Rembesan dipertimbangkan terjadi di lokasi penelitian pada atas lereng disposal beruang TAL, di mana terdapat sungai Lawai di puncak lereng yang dapat mempengaruhi stabilitas lereng tambang, sehingga diperlukan analisis. Analisis menggunakan metode Morgenstern-Price dengan …

OPTIMASI DESAIN PIT LIMIT PADA PIT 2 DI PT EDCO PERSADA ENERGI JOBSITE PT PEN…

In carrying out mining activities PT. Edco Persada Energi has opened 2 pits, of which only pit 2 is currently operating, while pit 1 has entered the post-operation stage, before operating PT. Edco Persada Energi has designed the final mining limit (pit limit design) for pit 2 using Minecraft software which functions as operational security control. To maximize mining recovery, it is necessary t…

OPTIMALISASI CADANGAN MARGINAL BATUBARA MENGGUNAKAN METODE AUGER MINING PADA …

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. …

ANALISIS KEHILANGAN BATUBARA DALAM KEGIATAN PENAMBANGAN BATUBARA DARI PIT ABI…

PT Putra Muba Coal has a total IUP area of 2,947 ha and since 2008 has been fulfilling coal demand for various local businesses and international markets. The company is one of the concession holders with South Sumatra Governor number 316/PTS/DIPARTAMBEN/2011. Based on the Minister of Energy and Mineral Resources, from the process of mining activities to shipping, the number of coal losses is m…

OPTIMASI GEOMETRI PELEDAKAN BERDASARKAN HASIL DISTRIBUSI FRAGMENTASI DI PIT S…

Pembongkaran material pada pit Suban Jeriji Selatan (SJS) Banko Tengah PT Bukit Asam Tbk menggunakan metode pemboran dan peledakan dikarenakan beberapa lokasi pada pit ini tersusun atas material keras yang jika dilakukan pemberaian secara langsung akan mengakibatkan kurang efektifnya pekerjaan penambangan. Peledakan yang dilakukan di pit SJS dianggap masih belum optimal yang ditandai dengan per…

OPTIMALISASI GEOMETRI LERENG LOW WALL TAMBANG BATU GAMPING UNTUK MENINGKATKAN…

Limestone is one of the mined materials commonly used in the cement industry. The mining method employed for this material is one of the open-pit mining methods. Open-pit mining activities will create slope dimensions, and the gentle slope dimensions lead to suboptimal mining. PT. Semen Baturaja Tbk. has slope geometry in the low wall area that is gentle, resulting in a high safety factor in th…

PERENCANAAN TEKNIS SEQUENCE DAN SCHEDULING PENAMBANGAN BATUBARA PER KUARTAL T…

In 2025, PT. Duta Bara Utama targets coal production of 2.250.000 tons of coal with SR that must less than 3,5. The actual production in January 2025 was 112.480,03 tons of coal and 230.486,10 BCM of overburden. . The out pit dump disposal areas, namely the northern and southern disposals in 2025, cannot accommodate the planned overburden volume, so dumping will be done in the in pit dump. Plan…

ANALISIS PENGARUH PARAMETER GEOTEKNIK TERHADAP STRATEGI PENGGALIAN OVERBURDEN…

The methods of excavation currently performed at the PT. MME are free digging and ripping. Technical studies carried out to determine whether the overburden material excavated is actually free digging and ripping, according to the characteristics of the overburden mass and the digging force capabilities of excavator have not been investigated. This study is based on observation in the field, wh…

PERENCANAAN RANCANGAN SUMP DAN KAPASITAS POMPA PADA PENAMBANGAN BATUBARA PT U…

Coal mining activities at PT Ulima Nitra Site BKL use an open-pit mining method (surface mining). The open-pit mining method forms a large depression, causing water entering the pit to potentially accumulate and create ponding if not properly managed, as the water comes from runoff flowing into the pit. Based on field observations, the main sump at PT Ulima Nitra Site BKL, with a volume of 34,9…

PERENCANAAN DAN PERANCANGAN SEQUENCE PENAMBANGAN BATUBARA PERIODE 2024-2028 U…

PT Pusaka Mitra Artha is a coal mining company administratively located in Gunung Tuo village, Mandiangin district, Sarolangun City, Jambi Province. PT Pusaka Mitra Artha plans to mine 700,000 tons of coal per year. So it is necessary to plan for mining design, overburden backfill design, and planning the needs of loading and hauling equipment per year to achieve the planning target. This study…

ANALISIS GEOMETRI JALAN UNTUK MENINGKATKAN PRODUKTIVITAS ALAT ANGKUT GUNA MEN…

Geometri jalan adalah faktor utama yang erat kaitannya dengan aktivitas alat angkut, jika geometri jalan ini masih tidak sesuai dengan standarnya dan ditambah dengan kondisi permukaan yang juga kurang baik, dapat berakibat pada peningkatan cycle time sehingga menyebabkan produktivitas dari alat angkutnya menjadi menurun. Oleh karena itu, perlu untuk melakukan analisis geometri jalan agar dapat …

ANALISIS PENENTUAN ISIAN BAHAN PELEDAK MAKSIMUM DAN DELAY PADA BLASTING UNTUK…

PT Thiess Contractors Indonesia is a multinational company that provides contracting services for coal mining. In the process of removing overburden using blasting techniques, it certainly produces waste energy, one of which is ground vibration. The results of ground vibration measurements in November-December 2023 exceeded 2 mm/second, exceeding the threshold of Kep-49/MENLH/11/1996. This has …

PERENCANAAN TEKNIS REKLAMASI TAHUN 2025 DI LAHAN BEKAS TAMBANG BATUBARA PIT L…

Coal mining activities may cause significant landform changes and environmental degradation; therefore, a well-planned reclamation program in accordance with prevailing regulations is required. This study aims to develop a technical reclamation plan for the year 2025 at the former coal mining area of Pit Lawai, PT Bumi Gema Gempita, Lahat Regency, South Sumatra Province. The research methods in…