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PROMINE

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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.

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Articles 120 Documents

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Analisa Hasil Pencucian Bijih Timah Pada Harz Jig Dalam Menurunkan Kadar Timah (Sn) Pada Tailing di PT Timah (Persero) Tbk. Unit Kundur, Kepulauan Riau Debi Yulian Adinata; Yulan Indah Permatasari
PROMINE Vol 4 No 2 (2016): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Tin ore washery Sn) is less than the maximum will affect the waste of precious minerals togethertailings resulting in increased levels of tin in the tailings. This is certainly a serious problem for thecompany, the impact of the loss will be visible both from time, labour, etc. And certainly not inaccordance with the target company based on Standard Operating Procedure (SOP). To determinethe levels of Tin (Sn) is still contained in the tailings, the tailings assessments conducted usingmicroscopic analysis.Tailings samples studied came from washery tailings back to the concentratefrom the mining and leaching earlier in Dredger (KK) and Ship Suction (KIP) is brought to the Tin OreProcessing Center (PPBT). Cassetrite or primary mineral Tin (Sn) dominant in the size fraction (+ 50# -20 #) with a percentage weight of 1.176%, and the largest number of samples contained in thetailings coming from Ships Suction (KIP) 4 that is equal to 2.61%. Cassetrite for the weightpercentage of all samples of the tailings is 3:09% and obtained his Levels is 2:44% Sn. The resultsobtained are presented in tables and graphs. Based on microscopic analysis and calculation of Sn inthe whole sample of tailings Dredger (KK) and Ship Suction (KIP), the results turned out to be not inaccordance with the Standard Operating Procedure (SOP) of the company is 1%.

Aplikasi Sistem Informasi Geografis Untuk Zonasi Kawasan Pertambangan Majenang-Bantarkawung Yazid Fanani
PROMINE Vol 4 No 2 (2016): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v4i2.111

The position of Majenang-Bantarkawung region become important and strategic because has a lot ofmineral and coal resources. However, there is no effort in mining area regulation to optimalizationmanagement of mining resources who can useful for people prosperity. Mining zonation of Majenang-Bantarkawung make with weighting and scoring in determination of mining parameters thanprocessing the parameters with overlay method. The parameters are : Land height, Land elevation,Disaster-prone areas, Overburden thickness, Ground water, River area, Water infiltration areas,Forest areas and Agricultural area. According to overlay of 10 mining parameters, Majenang-Bantarkawung mining zonation can be divided into can be permitted to mined, can be permitted tomined with certain condition, and can’t be permitted to mined. Banyumas regency has 61 distributionof mining resources location. Cilacap regency has 75 distribution of mining resources location. Brebesregency has 53 distribution of mining resources location.

Analisis Pengaruh Getaran Peledakan Terhadap Kestabilan Lereng Pada Tambang Batubara Pit Roto Selatan Site Kideco, Kecamatan Batu Sopang, Kabupaten Paser, Provinsi Kalimantan Timur Mukhammad Sofyan Rizka A; Fahrudin Fahrudin; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

In PT. BUMA site, there are some landslide which affected by blasting activity. Blasting activity iscarried out to destroy overburden material. The purpose of this research is to know the type oflandslide, the coefficient value of vibration decay from Peak Particle Acceleration (PPA), rock masscondition constant value from Peak Particle Acceleration (PPA), the Peak Particle Acceleration (PPA)value and the maximum acceleration (amax) which is at a point of safe in South Roto Pit. The researchmethods which used are the window mapping method in several sections at South Roto Pit.Description of rock mass that includes type of rock, rock strength, degree of weathering, block shape,type and shape of discontinuity, discontinuity filler and roughness level of discontinuity. ThisDescription of rock mass use Geological Strength Index (GSI) classification as a parameter to knowthe mechanical properties of rock mass (cohesion and internal shear angle). The research area has atype of toppling failure with eastward avalanche. The value of coefficient of vibration decay from PPA(k) is 44,66. The rock mass condition constant (α) is 1,802. The safe value of PPA highwall slopesarea of B STA 1 value is 0,184 g and the maximum acceleration (amax) value is 0,12 g. Highwall slopesarea B STA 2 with PPA value is 0,0769 g and maximum acceleration (amax) value is 0,05 g. Highwallslopes area C5 STA 3 with PPA value is 0,153 g and the maximum acceleration (amax) value is 0,1 g.Highwall slopes area C5 STA 4 with PPA value is 0,0307 g and the maximum acceleration (amax) valueis 0,02 g. Overall slopes area with PPA value is 0,0307 g and maximum acceleration (amax) value is0,02 g.

Analisis Peningkatan Faktor Keamanan Lereng Pada Areal Bekas Tambang Pasir Dan Batu di Desa Ngablak, Kecamatan Cluwak, Kabupaten Pati Rinal Khaidar Ali; Najib Najib; Ahmad Nasrudin
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Management of post mining land become serious concern for government in current time. Post miningarea that located in Ngablak village, Cluwak districts of Pati is one of post mining areas that did notmanaged and creates problems to civilian and village government, for example are safety andenvironment problems. Safety of environment disturbed because of mining activities that finished andcreated unstable slope (potentially landslide) caused by land dredging. To solve this problems,government need to make some research about stability of slope and studies about method ofanalysis which can increase the safety factor of slope. Slope stability analysis can be done with Side6.0 software which needs laboratory result data of soil mechanics. Methods that can increase slope’ssafety factor can be installation of retaining wall and cut and fill method that make the slope becometerraces. Efficiency of method that will be selected, can be tested by using Slide 6.0 software.Installation of retaining wall could increase the safety factor’s value become 1.103, this valuerepresents that the slope is still potentially to be landslide. However, cut and fill can increases safetyfactor’s value become 1.330, that representing slope condition is stable and safe.

Aplikasi Uji Kuat Geser Dalam Remediasi Lereng Tambang Aspal Di PT Karunia Alam Indonesia Kec. Lasalimu Kab. Buton, Provinsi Sulawesi Tenggara Novandri Kusuma Wardana
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Mining activities iscommonlyto work with the problem of deformation or rock movement, this is causingthe shift of rock mass and generated in the occurrence of landslides activity. Slope Stability Analysisrequired that the slope in stable condition. Therefore, stable bench is needed to prevent failure benchthat bring about interference either tool traffic or loading material during production process. Testing ofUCS value is done on 6 lithology that is on asphalt lithology, mudstone, siltstone, sandstone andclaystone. Based on the results of laboratory testing show that value of cohesion and friction angle togenerate by using Generalized Hoek Brown Failure Criterion method.The values of cohesion andfriction angle in asphalt are 0.080712 MPa and 26.3176 º. Asphalt Rock Mass Strength Value is0.145453 MPa. The values of cohesion and friction angle in mudstone are 0.075424 MPa and17.4773º. Rock Mass Value The mudstone rock is 0.220617 MPa. The values of cohesion and frictionangle in siltstone are 0,105107 MPa and 28,2864º. Rock Mass Strength siltstone rock is 0.311426MPa. The values of cohesion and friction angle in the sandstone are 0.180389 MPa And 38.9621º.Rock mass strength sandstone rock is 0.739092 MPa. The values of cohesion and friction angle insiltstone are 0.180389 MPa And 38.9621º. The Power of Mass The siltstone rock is 0.739092MPa.The values of cohesion and friction angle in mudstone are 0.180389 MPa And 38.9621º. RockMass Strength value The mudstone rock is 0.739092 MPa. Given that in Geological Strength Indexmethod only qualitative data will be more accurate using RMR method so it can get quantitative data.

Kajian Penyebaran Akuifer Menggunakan Geolistrik Dengan Metode Schlumberger Kompleks RRI Cisalak, Sukmajaya, Kota Depok, Jawa Barat Izza H. Hanani; Wahju Krisna Hidajat; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The research was conducted in Cisalak area, Sukmajaya district, Depok city, West Java. The researchwas committed in order to search for water source as a purpose to support the planning in built privateuniversity in West Java. The research aims to know the spreading of the aquifer. The used method isby observing the regional geology of the area and supported by geoelectric measuring and water tabledata.. This research used Schlumberger method which spreaded in 10 measuring points. From thismethod, the assessed litologi were clay, tuff sandy, and conglomerat. The underground correlationwas committed in four sections. The aquifer generally tend to spread from the central from west toeast of the area and from north to south.

The Wave Effect Analysis Caused By Blasting Toward Highwall Slope Stability At Coal Mining, Pit 3000 Block 05 Sb 1, PT Trubaindo Coal Mining, Kutai Western District, East Kalimantan Province Guntur Suryo Putro; Bambang Wisaksono; S Koesnaryo
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

PT Trubaindo Coal Mining (PT TCM) is a coal mining company located in West Kutai, East Kalimantan.Demolition of overburden layer is done by drilling and blasting can effect results primarily blastingground vibration for highwall slope stability. Controlled blasting activities undertaken in 3000 Pit Block05 using linedrill. Vibration measurement data obtained from the reading apparatus is not necessarilya factor affecting vibration highwall slope stability, but with the direction of propagation horizontalvibrations that cause the decrease highwall slope stability. The maximum horizontal accelerationarising from blasting activities as parameters that play a role in the stability of the slope obtained bylinking the PPA with the equation Amax = 0.5167 x PPA. Therefore, to determine the effect of groundvibration due to blasting for highwall slope stability modeling needs to be done cross-section A-A ', BB',C-C ', D-D' and E-E '. Results of prediction equations safety factor value of each cross-section asfollows: Section of A-A’, FK = 5,1489 amax 6 – 32,719 amax 5 + 79,933 amax 4 – 93,928 amax 3 + 54,189 amax 2 – 13,898 amax + 1,30852 Section of B-B’, FK = 0,4838 amax 6 – 3,0058 amax 5 + 7,0149 amax 4 – 7,6767 amax 3 + 4,4953 amax 2 – 2,4997 amax + 1,44549 Section of C-C’, FK = 1,2021 amax 6 – 7,4203 amax 5 + 16,907 amax 4 – 17,239 amax 3 + 8,0429 amax 2 – 2,8212 amax + 1,3628 Section of D-D’, FK = 5,279a amax 6 – 33,941 amax 5 + 84,105 amax 4 – 100,68 amax 3 + 59,648 amax 2 – 15,946 amax + 1,57907 Section of E-E’, FK = -1,9442 amax 6 + 11,453 amax 5 – 24,289 amax 4 + 20,677 amax 3 – 2,7313 amax 2 – 4,8741 amax + 1,65573The calculation results of critical maximum horizontal acceleration for every cross-section varies asthe follows: Section of A-A’, amax-critical = 0,007 g Section of B-B’, amax-critical = 0,118 g Section of C-C’, amax-critical = 0,062 g Section of D-D’, amax-critical = 0,025 g Section of E-E’, amax-critical = 0,09 gVariation is influenced by the thickness of the layer of top soil (top soil) and any cross-sectionalgeometry highwall slope.

Zonasi Potensi Airtanah Akuifer Bebas Di Cekungan Airtanah Majenang, Kabupaten Cilacap, Jawa Tengah Mahira Anaqah Huwaina; Thomas Triadi putranto; Narulita Santi
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Majenang Groundwater Basin is located in Cilacap Regency, Central Java. There is an increase of itsusage every year. Because of that, it is necessary to make groundwater zonation to get an overview ofthe potential zonation, specifically in unconfined aquifer. The methods used in this study is measuringwater table, sampling 17 samples of groundwater and pumping test to get the quantity of groundwater.Based on the measurement of known water table, it flows from the side of basin to the center of basin.It has a value of water level between 0.1-4.5 mbgl and water table 33.3-119.9 masl. Pumping test dataprocessing generates characteristic data aquifers, with value of transmisivity (T) is 2.9-11.3 m2/day,hidrolic conductivity (K) is 0.7-4.9 m/day, maximum debit is 2.3-3.6 L/day and optimum debit is 2.0-2.9L/day. Based on the result of quantity data, it has a medium potential zone for the unconfined aquifer.

Aplikasi Penginderaan Jauh Untuk Identifikasi Bentuk DAS Serang Di Kulon Progo Ignatius Adi Prabowo
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The aims of this research is to determine the shape of Serang drainage basin, Kulon Progo, DIY baseon the appearance recorded on the image of SRTM. Research method of remote sensing imageinterpretation of SRTM for the determination of Serang drainage basin and then calculate themorphometry of drainage basin in terms of the length of the main river, the width of the drainage basin,and the around of the drainage basin by using ArcGIS software. The results of morphometriccalculations is the main river length of 27.25 km, the drainage basin area 305.404 km2, the around ofdrainage basin 107.353 km. Based on these results can be calculated wide drainage basin of 11.207km, the shape of roundness 0.33 so that the Serang drainage basin is classified as a drainage basinwith elongated shape.

Studi Keterdapatan Unsur Tanah Jarang REE Ce dan Y pada Berbagai Kolong di Pulau Bangka Irvani Irvani; Janiar Pitulima
PROMINE Vol 5 No 1 (2017): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Rare earth element REE is very potential future prospect mineral resources in Bangka Island, hence awell developed REE must have a high economic value in the future. As one of the biggest region thatproducing tin ore mining (cassiterite) for hundreds of years, REE potential not yet explored andexploited well until now days in Bangka Island, and was left abundant in ex-mining area. They carriedout from the tin ore mining and become mine waste or tailing and then through the stream flows to besuspension or bed load sediment. The aim of this study is to identify the present rare earth Ce and Ybased on shallow surface sediment samples and their spatial distribution from a number of mineponds called kolong. Primary data collection of shallow surface sediments has been collected onKolong Argotirto and Menjelang West Bangka District, Kolong PLN and Merawang in Bangka District,Kolong Rentensi Kacang Pedang and Pedindang in Pangkalpinang City. Geochemical sedimentsanalysis just for identification the presence of rare earth Ce and Y. Rare earth element of cerium(Ce) just presence in a few sample sediment, but for yittrium (Y) almost presence at all shallowsurface sediment 0,9 - 31,6 ppm. The spatial distribution of rare earth Ce and Y show heterogeneity inlaterally.

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