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PROMINE
Published by Universitas Bangka Belitung
ISSN : 23547316     EISSN : 26207737     DOI : -
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science
Jurnal ilmiah dengan nama Promine merupakan terbitan berkala ilmiah Jurusan Teknik Pertambangan Universitas Bangka Belitung yang terbit setiap bulan Juni dan Desember dalam setahun yang meliputi bidang Eksplorasi (Geologi dan Geofisika), Geoteknik/Geomekanika, Pengolahan Minerba, Reklamasi, dan Pasca Tambang.
Arjuna Subject : -
Articles 130 Documents
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Pengaruh Diskontinuitas Terhadap Kestabilan Lereng Batuan Terkekarkan Studi Kasus Kuari Andesit PT Lola Laut Timur Kabupaten Bogor Irwan, Andesta Granitio; Koesnaryo, S.; Dwinagara, Barlian; Saptono, Singgih
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2433

Abstract

Discontinuity in a rock mass has an influence on the stability of a rock slope because it is one of the controlling factors of slope failure. In this study, an analysis was carried out on the role of discontinuities, namely joints and lithic tuff layers on slope stability and the effect of persistent parameters and joint roughness on the safety factor of safety factor. The analysis used is the effect of changes in the thickness of the lithic tuff, persistence and the value of joint roughness on the value of the safety factor. Processing of slope stability data using Rocscience RS2 Software with Finite Element Method modeling with rock mass modeling used in the analysis, namely the Veneziano Model. The results showed that an increase in the thickness of the lithic tuff layer resulted in a decrease in the safety factor of the slope up to 1.37%. The effect of the persistence parameter on the slope safety factor was found that the higher the persistence value, the lower the slope safety factor value up to 2,9% and changes in the JRC value decreased the safety factor value up to 1,7%.
Peningkatan Nilai Tambah Mineral Kalsit Menjadi Barang Seni Lampu Hias Ramadani, Rully Nurhasan; Dinata, M. Imam Aga; Adhitya, Eka; Nuryahya, Himawan; Widayati, Sri
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2519

Abstract

Abstract Increasing the added value of rock and minerals can provide benefits to the wider society. The policy conservation of minerals, which has a focus on optimizing benefits and minimizing negative impacts of mining activities. Framework of optimizing the benefits of minerals, there are efforts, maintenance, protection, mining and processing as well as increasing the added value og these minerals. Calcite mineral (CaCO3) a part of the carbonate mineral group as one of the main composition mineral of limestone. The utilization of this calcite mineral is reviewed based on the quality of the physical and chemical properties. In principle, this research utilize the physical properties of the mineral because the chemical quality is relative low. Trial and error method is used in this study to getting the right design of art. The processing is simple and doest not require high technology and certified skills, by utilizing the transparency, color, and gloss properties of the mineral calcite will become an art item that has added value when given lighting. Keywords: Calcite, Added Value, Art Items, Decorative Lighting
Analysis of The Distribution of TSS, TDS, pH And Temperature In The River Due to People's Alluvial Gold Mining With SGEMS In Desa Sungai Kapas, Merangin, Jambi RusnoviandI, RusnoviandI; Nata, Refky Adi; Rahayu, Puji; Syahmer, Verra
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2582

Abstract

Kegiatan penambangan emas secara tradisional dilakukan oleh masyarakat di Desa Sungai Kapas, Kabupaten Merangin, Jambi menyisakan lubang- lubang dan kolam akibat aktivitas penambangan emas. Aktivitas penambangan emas dilakukan disekitar aliran Sungai Blengo yang ada di Desa Sungai Kapas. Sisa air limbah penambangan dialirkan secara langsung ke sungai sehingga menyebabkan kekeruhan pada air Sungai Blengo. Penelitian ini dilakukan guna mengetahui kadar pencemaran yang terjadi di Sungai Blengo dengan parameter; TSS (total suspended solid), TDS (total dissolved solid), pH, dan Suhu. Metode yang digunakan untuk penelitian ini adalah metode eksperimen. Hasil pengujian menunjukan bahwa nilai TSS pada setiap sampel stasiun penelitian memiliki nilai melebihi ambang batas maksimal, nilai yang memenuhi nilai maksimal ambang batas adalah 200 mg/L pada stasiun 8 (delapan), pada stasiun lainnya nilai TSS melebihi 200 mg/L dengan nilai tertinggi sebesar 6.400 mg/L pada stasiun 7 (tujuh). Nilai pH pada staisun 3 (tiga) dan memiliki nilai 4,7 dengan demikian nilai tersebut tidak memenuhi standar sebesar 6-9. Dengan demikian dapat diketahui bahwa air Sungai Blengo tidak layak. Hal ini dikarenakan tidak memenuhinya syarat-syarat yang ada pada peraturan yang berlaku untuk penambangan serta pengolahan emas.
Kajian Teknis Kestabilan Lereng Pasca Tambang Berdasarkan Sifat Fisik dan Mekanik Tanah (Studi Kasus Kecamatan Mataraman Kabupaten Banjar Kalimantan Selatan) Norfaeda, Rahma; Rizhan, Muhammad; kartini, Kartini
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2627

Abstract

Post-mining slopes have the potential for landslides caused by factors such as slope geometry, rock structure, physical and mechanical properties of rock and groundwater content. Post-mining slope monitoring must be carried out to avoid more environmental problems. This study aims to determine the stability of ex-mining slopes. The soil sample used form the Mataraman District, Banjar Regency. The analytical method of a technical study based on physical and mechanical properties of the soil with a mine slope design simulation using slide 6.0 software to determine the safety factor of ex-mining slopes from several variations of slope angles. The safety factor analysis was taken from the data of the smallest cohesion value and bulk weight to represent the strength of the slope material. Based on the analysis of the value of the physical and mechanical properties of the sample against the analysis of slope stability, it was found that the post-mining slope will be stable and safe if there are no additional factors that can reduce the stability of the slope. The mine slope still has a safety factor value of > 2 which means it is stable even though the slope angle has reached 70°.
Penyusunan Zonasi Kawasan Pertambangan Di Kabupaten Magetan Berdasarkan Aplikasi Sistem Informasi Geografis Dengan Metode Pertampalan Fanani, Yazid; Widiatmoko, Fajar Rizki; Al Fakih, Salahudin; Suryawan, I Wayan Koko; Sari, Mega Mutiara
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2774

Abstract

Magetan has resources mineral potential of non-metallic minerals and rocks. The mineral variety is a mineral which relates to the people livelihood because it necessary for infrastructure development. There is no mining area zoning until now and it can be used to optimize the management and utilization of potential resources. In Magetan, mining area zoning was carried out by giving weights and assessments to the determining parameters which was conducted by patch method and it utilized Geographic Information System. So, the result of mining area zoning could be grouped into three zones. They were a zone could be granted a mining permit, a zone could be granted a conditional mining permit and a zone could not be granted a mining permit. Determining parameters for mining area zoning were land height, disaster vulnerability, groundwater, river borders, lakes and irrigation buildings, springs, forests and protected areas, agricultural land and cultivation areas, settlements, cultural heritage, tourism and district strategic areas, and land slope. The result of potential resources identification was carried out by analyzing Magetan geological map which was obtained potential resources, like andesite, pumice breccia, sandstone, siltstone and basalt. The zoning of Magetan mining area is a zone could bne granted a mining permit and the area was 9,914.507 Ha or about 14% in a percentage of the area, a zone could be granted a conditional mining permit covering an area of 20,748.29 Ha or about 30% and a zone unable to be granted a mining permit covering an area of 39,296.08 Ha or about 56% of the total area of Magetan.
Kajian Produktivitas Alat untuk Mengoptimalkan Hasil Produksi Overburden di PT. Karebet Mas Indonesia Site Kutai Energi Kalimantan Timur Putri, Fairus Atika Redanto; Cahyono, Yudho Dwi Galih; Rabin, Serin
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2865

Abstract

Overburden and coal mining must go hand in hand and in line, because high overburden productivity will affect coal production results. This study aims to calculate, analyze productivity and determine recommendations for increasing production. This research uses a combined research method and a mathematical pattern. The company has a productivity target of 220.5 m3/hour, with the actual conditions obtained for digging and loading equipment that has reached the target of 279.9238 BCM/hour, but the transportation equipment has not reached the target of 80.9048 LCM/hour. There are various factors that have not achieved the production target, among others, low work efficiency, quite long transportation and return times during transportation equipment circulation times, as well as mismatched compatibility factors that cause long waiting times for transportation equipment. After optimization with the addition of 1 unit of excavator with the same type, optimization of the transportation equipment cycle time and optimization of the work efficiency of the transportation equipment, an increase in productivity was obtained in each conveyance, so that after optimizing the productivity target of transportation equipment was achieved by 222 ,4045 LCM/Hour.
Studi Diagenesis Batugamping Formasi Meluhu Daerah Toronipa, Kecamatan Soropia, Kabupaten Konawe, Provinsi Sulawesi Tenggara Hasria, Hasria; Jalil, Abdul; Masri, Masri; Okto, Ali; Bahdad, Bahdad; Septiana, Sara
PROMINE Vol 11 No 1 (2023): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jp.v11i1.3008

Abstract

The research area is administratively located at Toronipa, Soropia District, Konawe Regency, Southeast Sulawesi Province. The purpose of this study was to determine the type of limestone, the diagenes process and the environment of limestone diagenesis in the Meluhu Formation. The method used in this research is the petrographic method. The results showed that the types of limestone in the study area were wackestone and packstone which had undergone a diagenesis process in the form of cementation, microbial micritization, neomorphism, and dissolution. The limestone diagenesis environment in the Meluhu Formation originates from the marine phreatic, meteoric phereatic, and meteoric vadose diagenesis environments.
Pemodelan Dataset Tambang Terbuka pada PT. United Tractors Semen Gresik dengan Metode Artificial Neural Network Kurniawan, Muchamad; Fanani, Yazid; Agustini, Siti; Wachid, Aldi
PROMINE Vol 12 No 1 (2024): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jp.v12i1.3311

Abstract

The Mining industry in Indonesia plays a vital role as a source of state income and an integral part of the industrial progress of the nation. The majority of the mining industry in Indonesia employs open-pit mining. One of the weather factors that can be an obstacle in open-pit mining is rainfall. Therefore, this research focused on modelling data from rainfall, working hours and production outcomes. It applied the Artificial Neural Network algorithm with an input layer consisting of two neurons, a hidden layer with two neurons, and an output layer. The data on Rainfall working hours, and production results were trained to produce a model that, later on, will be used to predict the value of production results. For model testing, this study uses two parameters, namely learning rate and epoch. From 90 times of testing, the best model was obtained with a learning rate value of 0.3 and an epoch of 1000 which resulted in an RMSE error of 0.004838259401280330
Modelling and Estimation of Coal Resources Using Circular Method in Beringin Makmur II Area, North Musi Rawas Regency Erisendy, Maretha Deva; Rochmana, Yogie Zulkurnia
PROMINE Vol 10 No 2 (2022): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jp.v10i2.3842

Abstract

The Muaraenim Formation is a coal-bearing formation located in the South Sumatra Basin. The research location is in the Beringin Makmur 2 area, North Musi Rawas Regency, which is included in the Airbenakat and Muaraenim Formations. The aim of this research is to do 2-dimensional and/or 3-dimensional modeling in the research area to determine the feasibility of the mining process. The feasibility test of a coal seam body will be used as a study for the next stage, namely resource estimation. The method for calculating coal resources is the USG circularS method based on drill log data. The following data is needed, such as drilling data for 64 drill points, regional geological data and survey data at the research location or mining business permit (IUP) location. Then an analysis will be carried out so that 3D subsurface modeling and calculation of coal resources can be continued. Based on the research results, it was found that there were 3 coal seams with updip in the north direction and downdip in the south direction N1800E - N1820E. In the research area, synclines were found that affected the distribution of coal. Interpretation of the 3D model is obtained from the correlation between drilling data and survey data. The results of the calculation using the USGS circular method, the estimated tonnage of inferred resources is 91,840,000 tons, indicated resources are 55,330,000 tons, measured resources are 235,870,000 tons so that the overall estimate of the coal seams is 383,040,000 million tons/ton.
Studi Lineament dan Struktur Tektonik Daerah Tanjung Kurung, Kabupaten Kaur, Bengkulu Silaban, Ganda Tua Gilbert; Sutriyono, Edy
PROMINE Vol 12 No 1 (2024): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jp.v12i1.5126

Abstract

Identification and interpretation of landscape lineaments and measurements of geological structural components in rock outcrops have been carried out in order to reveal the development of rock sequence deformation in the study area. This research was conducted in Tanjung Kurung Village and its surroundings. The regional observation area is included in the Manna Enggano Sheet Geological Map (Amin, T, C. et al, 1993), while tectonically it is located in the Bengkulu basin which previous researchers categorized as a fore-arc basin (Sapiie et al ., 2015). This study uses two approaches, namely lineament analysis with national digital elevation model (DEMNas) image interpretation and surface geological mapping with observation of rock outcrops or structures. The DEMNas image used in this research has been accessed from https://tanahair.indonesia.go.id/portal-web which is owned by the Geospatial Information Agency (BIG). The geological structure of the Bengkulu Basin is divided into two general directions, namely the North-West-Southeast and North-East-Southwest directions. Structures that trend northwest-southeast are the Tanjung Sakti fault and the Ketaun fault. These faults are directly related to the Semangko Fault pattern and the Mentawai Fault pattern (Yulihanto et al., 1995).

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