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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…
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- xx, 134 hlm.; ilus.; tab.; 29 cm
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- T1897912025
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…
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- xix, 84 hlm.; ilus.; tab.; 29 cm
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- T1898972025
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…
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- xvi, 73 hlm.; ilus.; tab.; 29 cm
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- T1917602025
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 Coal…
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- xx, 98 hlm.; ilus.; 29 cm
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- T1862922025
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…
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- xv, 42 hlm.; ilus.; 29 cm
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- T1571012024
OPTIMASI RECOVERY CASSITERITE (SnO2) PADA KAPAL ISAP PRODUKSI TIMAH 19 PT TIM…
Kapal Isap Produksi (KIP) Timah 19 is one of PT Timah Tbk's mining operational object which operates in the Kundur sea area, Karimun Regency, Riau Islands. The tin ore (cassiterite) washing process at KIP Timah 19 uses a Pan american jig as a concentration tool. There are two stages in the cassiterite separation process, namely separation in a primary jig and a secondary jig. Cassiterite recove…
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- xv, 42 hlm.; ilus.; 29 cm
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- T1570762024
ANALISIS BREAK EVEN GRADE (BEG) PENGOLAHAN MATERIAL SISA HASIL PENGOLAHAN (SH…
PT Timah Tbk has concentrated its mineral processing activities in the Mineral Processing Division (BPM), located within the Muntok Metallurgical Unit, which has been operating since 1976. Residual processing material (SHP) from BPM is collected in a dedicated storage area in Gemuruh. Based on measurements, the SHP volume at the research site reached 6,772.5 m³ with a total weight of 8,804 ton…
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- xvi, 142 hlm.; ilus.; tab.; 29 cm.
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- T1862202025
RE-EVALUASI TEKNIS DAN BIAYA KEGIATAN RENCANA PASCA TAMBANG PADA LAHAN BEKAS …
PT. Batubara Bukit Kendi (PT. BBK) is one of the companies that supplies coal with an area of 881.70 hectares (448.37 Ha is Protected Forest Area and 433.33 Ha is Production Forest Area). PT. The BBK mentioned above is a company that uses the open pit mining method (strip mining). This mining operation begins with land clearing activities, stripping top soil and overburden. Mining is carried ou…
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- xi, 93 hlm.; ilus.; 29 cm
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- T1495212024
ANALISIS GEOPRESSURE DAN EVALUASI MUD WEIGHT UNTUK PERENCANAAN OFFSET WELLS P…
Permasalahan dalam proses pemboran sumur sering terjadi apabila mud weight yang digunakan tidak sesuai dengan model geopressure sumur tersebut. Ketidaksesuaian ini dapat menimbulkan berbagai masalah selama proses pemboran, seperti yang dialami pada sumur TRG-1. Pada beberapa titik kedalaman, penggunaan mud weight tidak optimal sesuai dengan tekanan pori dan tekanan rekah yang ada, sehingga meng…
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- xv, 138 hlm.; ilus.; tab.; 29 cm.
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- T1843052025
ANALISIS PENGARUH FLUKTUASI HARGA BATUBARA TERHADAP NILAI CADANGAN OPTIMAL DE…
Cadangan batubara merupakan acuan dalam melakukan perencanaan tambang. Tingkat keyakinan cadangan menentukan risiko kelayakan ekonomi dan garansi pengembalian modal dari pengusahaan tambang. Dalam proses estimasi cadangan batubara, harga jual memiliki peranan penting. Risiko ekonomi yang menjadi bahasan dalam penelitian ini adalah risiko pasar yang berhubungan dengan fluktuasi harga jual batuba…
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- xv, 82 hlm.; ilus.; 29 cm
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- T1434072023
PERENCANAAN TEKNIS SEQUENCE PENAMBANGAN DAN NILAI EKONOMI DALAM UPAYA KONSERV…
In accordance with the calculation of economic value from the engineering department at PT Banjarsari Pribumi, it was obtained that the South SP Timur pit is an uneconomical pit to mine because it generates negative net income. However, in the effort of additional reserve opportunities and expansion of IPD South disposal capacity, in 2024 PT Banjarsari Pribumi plans to integrate with the South …
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- ix, 33 hlm.; ilus.; 29 cm
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- T1433952024
REDESIGN GEOMETRI PELEDAKAN PADA TAMBANG QUARRY ANDESIT UNTUK MENGOPTIMALKAN …
PT Meganta Batu Sampurna is a mining company that focuses on andesite stone production located in Batujajar Village, Cigudeg District, Bogor Regency, West Java. In the production process, andesite rock is demolished using drilling and blasting processes. With standard blasting results measuring ≤80 cm by 70% and ≥80 cm by 30%. Based on the average fragmentation of 30 blasts in November�De…
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- xvii, 83 hlm.; ilus.; 29 cm
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- T1433632024
OPTIMASI BLOK RENCANA KERJA KAPAL ISAP PRODUKSI MENGGUNAKAN KAPAL ISAP STRIPP…
Penambangan timah di Indonesia, terutama di laut, dilakukan oleh PT. Timah menggunakan Kapal Isap Produksi (KIP) sejak 2009 untuk menggali pasir timah di lokasi eks Kapal Keruk. Namun, karena semakin terbatasnya lokasi tersebut, KIP kini beroperasi di area insitu yang memiliki tantangan seperti air dangkal, lapisan tanah tebal dan tanah liat keras, yang berdampak pada produktivitas dan keausan …
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- xvi, 66 hlm.; ill.; tab.; 29 cm.
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- T1666802024
ANALISIS KESTABILAN LERENG DAN PENGARUH SESAR PADA HIGH-SIDE WALL PADA TAMBAN…
PT Bukit Asam is one of the State-Owned Enterprises (BUMN) which focuses on operating in the energy sector based on coal mining. PT Bukit Asam is an open pit mine located in Tanjung Enim, Muaraenim Regency, South Sumatra Province. This research aims to determine the safety value of a stable slope against the influence of faults. The presence of fault planes on slopes can cause the level of stab…
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- xvi, 66 hlm.; ilus.; 29 cm
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- T1395572024
ANALISIS KINERJA IMPLEMENTASI CSR PT.GOLDEN GREAT BORNEO TAHUN 2021 ERA PANDE…
Corporate Social Responsibility (CSR) is an obligation which must be carried out by companies which engage in natural resources. According to the Decree of Ministry of Energy and Mineral Resources of the Republic of Indonesia number 1824 K/30/MEM/2018, it requires every company to prepare a master plan for Community Empowerment (CE) during the production and post-mining operations. Golden Great…
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- xv, 68 hlm.; ilus.; 29 cm
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- T825262022
POLA KEBIJAKAN PERTAMBANGAN DALAM PENYUSUNAN PROGRAM PENGEMBANGAN DAN PEMBERD…
The mining industry is obliged to contribute in improving the living standards of the community, especially the local communities living around the area of operation - as well as to help in the making of environmentally sustainable development, one of which is by conducting the obligations of the Community Development and Empowerment Program (PPM). This program is planned by mining companies wh…
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- xii, 130 hlm.; ilus.; 29 cm
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- T1164782023
KAJIAN TEKNIS DAN EKONOMIS PEMBERAIAN OVER BURDEN DENGAN METODE RIPPING TERHA…
The stage of mining activities carried out before taking valuable minerals or coal is stripping the overburden. The usual method is to use the ripping method. This study aims to examine the effect of ripping-dozing activity on the productivity of the loading and unloading equipment such as PC 2000 in the Pit 1 North West Banko mining area. This is because in the period June – August 2020 the …
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- xvi, 76 hlm. : ilus.; 29 cm
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- T539332021
NILAI KEEKONOMIAN PEMANFAATAN LUBANG BEKAS TAMBANG (VOID) TAMBANG BATUBARA PT…
Kegiatan pertambangan di akhir kegiatan akan meninggalkan lahan bekas tambang berupa void dan non void. Lahan yang ditinggalkan tersebut harus dikelola agar bermanfaat bagi masyarakat. Lahan bekas tambang yang ditinggalkan di akhir kegiatan dapat dikelola dengan cara reklamasi dan peruntukan lainnya. Void (lubang tambang) dapat dimanfaatkan antara lain seperti sarana rekreasi air, sumber air ba…
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- xv, 73 hlm. : ilus. ; 28 cm
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- T381152020
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