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Journals Mining Engineering : Bina Tambang
Published by Universitas Negeri Padang
ISSN : -     EISSN : 23023333     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Atas dukungan dari jurusan Teknik Pertambangan dengan Penanggung Jawab Dekan Fakultas Teknik UNP (Drs. Ganefri,MPd, P.hd) bekerjasama dengan Ketua Jurusan Teknik Pertambangan (Drs.Bambang Heriyadi,MT) dan seluruh Dosen Jurusan Teknik Pertambangan Fakultas Teknik Universitas Negeri Padang. Jurnal ini terbentuk dan didukung penuh untuk sarana kretifitas Dosen dan Mahasiswa Teknik Pertambangan.
Arjuna Subject : -
Articles 609 Documents
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PEMETAAN KEMAJUAN LUBANG BUKAAN TAMBANG BAWAH TANAH PT. DEMPO MAJU CEMERLANG, KECAMATAN IV JURAI, KABUPATEN PESISIR SELATAN, PROVINSI SUMATERA BARAT Hanifa Octaviani; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.123653

Abstract

Abstract.  PT. Dempo Maju Cemerlang, located in Nagari Tambang IV Jurai District, Pesisir Selatan Regency, West Sumatra Province, is a company engaged in ore (gold) mining. The existence of ore in the exploitation area is in the form of veins (quartz veins) that are elongated and vertical. The mining process of PT. Dempo Maju Cemerlang usesmethods Shrinkage and, Glory Hole namely mining by creating levels. Between the levels are made stopes or rooms. In the process of extracting the ore it is crushed using themethod over hand (digging upwards) and allowed to gather in the stope. Ore mining is carried out in a horizontal incision starting from the bottom leading upwards through a manway. Mapping the progress of the opening holes that will be carried out is using themethod terrestrial with measuring total stations. Themethod terrestrial is a strategy or technique of obtaining data about objects or phenomena on the earth by direct contact or measuring directly on the object or phenomenon of the study. Retrieval of data using themethod terrestrial aims to map the progress of the underground mine openings and will obtain the layout of the underground mine openings of PT. Dempo Maju Cemerlang that can be analyzed and the amount of progress in the underground mine will be known.Keywords: Mapping, Terrestrial, Mining Progress, Total station      
EVALUASI GEOMETRI JALAN TAMBANG UNTUK MENINGKATKAN TARGET PRODUKSI BATU KAPUR 2.000 TON/BULAN PT. SUMBAR CALCIUM PRATAMA, KABUPATEN LIMA PULUH KOTA, PROVINSI SUMATERA BARAT Muhammad Syukri Yusa; Yoszi Mingsi Anaperta S.T,M.T
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.123658

Abstract

PT. Sumbar Calcium Pratama is a company engaged in open pit mining and processing of l imestone in Jorong Ateh Loban, Nagari Halaban, Lareh Sago Halaban District, Fifty City District, West Sumatra Province. In supporting its production, PT. West Sumatra Calcium Pratama requires an effective road access design that complies with standards so as not to hinder production activities. From the actual data in the field, it was found that the road segments had non-ideal straight road widths, namely segments 1, 2, 3, 4, 5, and 9, while the ideal straight road width after calculations was 7 meters, on the bend road width t here were four non-ideal road segments, where the ideal road bend width is 10.5 meters. Then there is a road grade that is > 10% to be precise in segment 8 (12.25%) which of course this is not in accordance with t he applicable provisions according to AASHTO 1994. Because this will certainly affect the total rimpull, speed, circulation time, and productivity of the tool transport. From the calculation results, the actual productivity value of the conveyance is 1.47 tons/hour, while the planned productivity of the conveyance with a hauling distance of about 2.8 km is 2.08 tons/hour. After the theoretical calculations were carried out with the road conditions having been repaired, the productivity of the transportation equipment was 2.18 t ons/hour, which means that after the road was repaired theoretically the productivity reached even more t han the plan. While the production target in February was 2,000 tons/month, with actual production of 1,416 tons/month. After doing theoretical calculations, it was found that production was 2,100 tons/month, which means that it exceeded the production target. The conclusion of this study is that road conditions will affect the total rimpull, the total rimpull will affect the speed, then the speed will affect the cycle time, and t his cycle time will affect the productivity of the conveyance.
Desain Dan Penjadwalan Produksi Pit Tambang Batubara CV. Niska, Dusun Senamat, Kecamatan Pelepat, Kabupaten Bungo, Provinsi Jambi Yudha Kurnia Isti
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.123095

Abstract

Given the still high demand for coal, Indonesian coal mining operations must also be prepared to face conditions of increasing demand for mining products, which require the application of accurate and efficient calculations and proper mine planning, while continuing to create good mining practices in accordance with the Regulation of the Minister of Energy and Mineral Resources No. 26 of 2018, in the sixth part of article 27 which holders of exploration IUP, exploration IUPK, production operation IUP, and production operation IUPK are required to carry out the use of technology, engineering capabilities, design, development, and application of mining technology. CV. Niska has carried out and completed the exploration phase in the Mining Business Permit Area (WIUP) in Senamat Village, Pelepat District, Bungo Regency, Jambi Province. Based on the exploration findings, coal distribution has been found, where exploration drilling and test pits have been carried out in the IUP CV. Niska, who will then open a new Mining Activity in the IUP area, with an area of 199 Ha. After carrying out the Exploration Phase, a mining plan or design must be carried out with specified requirements, specifications, detailed and clear technical standards, as well as a technical sequence of activities to achieve the goals and objectives of the activities. So, to increase the effectiveness and efficiency of the production process and achieve the goal of mining output, production scheduling is very important. After conducting the analysis and discussion, the results obtained from the pit design carried out in the Mining software show that the mining area to be mined is 69.52 Ha. The results of the theoretical study and theoretical calculations, the production scheduling plan (overburden and coal targets) in April 2023 – March 2024 namely, for overburden of 6,472,322 bcm, and for coal of 809,040 tons, and can recommend tools for overburden stripping, namely for every one unit of Komatsu PC 800 excavator can be paired with 4 units of Hino FM 260 JD, for one unit the Komatsu PC 400 excavator can be paired with 4 units of Hino FM 260 JD, and for coal extraction the selected tool is the Komatsu PC 400 excavator which can be paired with 3 units of Hino FM 260 JD. the largest fleet in March 2024 was 7 fleets consisting of 28 units of Hino FM260JD Dump Trucks and 7 units of Komatsu PC400 Excavators. For the Komatsu PC800 Excavator fleet for one year, namely 5 units, and 20 units of Hino FM260JD Dump Trucks
Penerapan Blended Learning Melalui Pengembangan Video Pembelajaran dalam IPA SLTP di Kota Payakumbuh Amali Putra
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i1.125034

Abstract

Dimasa New Normal setelah melewati masa pademi Covid 19 selama hampir 2 tahun,  Orientasi  pembelajaran di sekolah mengalami perubahan dari offline, ke kombinasi antara offline dengan online, atau murni online (pembelajaran daring). Hasil studi awal pada pelajaran IPA SLTP di kota Payakumbuh mayoritas guru cenderung memilih strategi pembelajaran kombinasi dalam bentuk Blended Learning. Dalam pelaksanaannya guru masih mengalami kesulitan dalam mengembangkan  media pembeajaran dalam bentuk video, animasi, dan simulasi dalam pembelajaran. Dalam rangka meningkatkan profesionalitas guru-guru yang terhimpun dalam wadah MGMP IPA SMP Kota Payakumbuh agar kualitas pembelajaran daring/online tidak menurun dibandingkan pembelajaran lurung/offline, telah dilakukan kegiatan pelatihan pembuatan video pembelajaran dalam bentuk MP4  sebanyak 5 kali pertemuan  pada bulan Desember  2022. Berdasarkan data yang diperoleh dari awal sampai akhir kegiatan menyimpulkan bahwa: 1) Peserta mendapatkan pengetahuan dan ketrampilan dalam mengembangkan video pembelajaran. 2) Kualitas kegiatan pelatihan berada pada kategori baik berdasarkan indikator indikator  : a) tingkat partisipasi kehadiran peserta pelatihan rata-rata 87,2%; b) jumlah produk video pembelajaran yang dihasilkan sebanyak 63,6 % dari target yang direncanakan; c) berdasarkan data angket persepsi guru, kegiatan pelatihan memberikan manfaaat karena sesuai dengan permasalahan guru, dan dapat mengatasi kesulitan guru dalam merancang video pembelajaran dan peserta pelatihan berniat untuk tetap mengembangkan video pembelajaran setelah mengikuti pelatihan
Analisis Kebutuhan Kualitas dan Kuantitas Udara Menggunakan Software Ventsim dan Kazemaru pada Tambang Bawah Tanah PT. Dempo Maju Cemerlang, Kabupaten Pesisir Selatan, Sumatera Barat febri yanda praja; bambang heriyadi
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125170

Abstract

Mine engineers can use simulation software such as VentSim and Kazemaru to optimize airflow within the mine and create effective ventilation systems. Comparative analysis between the two software can provide important information about the strengths and weaknesses of each software when optimizing their underground mine ventilation systems. Reliability, computing speed, ease of use, modeling capabilities, accuracy of simulation results, and technical support are some of the factors one might look at in a comparison between VentSim and Kazemaru. In addition, this analysis may include comparison of features, user interface, ease of use, accuracy of simulation results, and time required to perform simulations. Analysis of the data used is quantitative, based on the theory of calculation. The result is quantitative. The focus of the research is the ventilation system used in the PT Dempo Maju Cemerlang mine pit. Mine pit PT. Dempo Maju Cemerlang requires 28.99 m3/s of total air, but based on the conditions at the time the measurements were made, the required amount of air has not been met. The results of calculating the air quantity of the ventilation system used in PT. Dempo Maju Cemerlang is only 24.97 m3/s. Every mining pit of PT. Dempo Maju Cemerlang has a temperature of 22.5–24.1 °C. Air humidity ranges between 88% and 93%. In the simulations performed with ventsim and kazemaru software, Ventsim excels in several features, including dust distribution, visualization and graphing, ventilation efficiency analysis, financial simulations, and an attractive user interface. Keywords:  Air Demand, Software, Ventilation System
Evaluasi Pengupasan Volume Overburden Menggunakan Data Truck Count Monitoring dan Joint Survey di Pit Batu Tegak PT. Andalan Artha Primanusa Jobsite PT. Budi Gema Gempita, Merapi Timur, Kabupaten Lahat, Sumatera Selatan Gilang Oktafi Hendri; Riko Maiyudi; Heri Prabowo; Rudi Anarta
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125057

Abstract

PT. Andalan Artha Primanusa Jobsite PT. Budi Gema Gempita is a coal mining company operating in East Merapi District, Lahat Regency, South Sumatra. The mining system uses an open pit mining system with the Open Pit Mining method. In carrying out mining operations, there is a deviation from the overburden production results from the data recorded by the checkers in the form of truck count monitoring data and measurement results data from surveys in the form of joint survey data. After calculating the overburden volume, the overburden volume deviation was obtained based on survey data and truck count monitoring data at the May 2022 EOM of 17,053.99 bcm with a percentage value of 4.52% and in June 2022 there was a deviation of 21,368.58 bcm with a percentage value of 6.58%. From these results it can be seen that the deviation value obtained exceeds the standard set by the company, namely with a percentage of ± 3%. Because the results of the deviation exceed the standard set, a picking test of the load of the conveyance is carried out. Based on the results of the picking test, there is a difference in the volume of the Joint Survey data with the Truck Count Monitoring data of 5,920.58 bcm with a percentage of 1.82%. This is due to the presence of sticky overburden material on the vessel dump truck or articulated dump truck and not dredging, so that the load on the vessel is not optimal. Meanwhile, by looking at the survey measurement conditions, there are areas that have not been measured because they are still submerged in water.
Analisis Balik Kestabilan Lereng Disposal di PIT Satelit Dengan Metode Bishop PT. Barasentosa Lestari di Desa Belani, Kabupaten Musi Rawas Utara, Provinsi Sumatera Selatan Anita Sari Sundriya; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125147

Abstract

This study focuses on the slope of the disposal pit at Satellite PT Barasentosa Lestari, which experienced a landslide in March 2023. The landslide is a type of arc landslide and involves fractures and fill material such as mud. Therefore, a technical study was required, including a slope stability analysis of the design of the disposal area. The aim is to establish a basis for the establishment of the disposal area, prevent landslides, and optimize its capacity. This study aims to identify the slope stability of the disposal area, update the material properties of the area, provide slope design recommendations, and evaluate the slope safety factor at the study site. Bishop's method was used in this study. The results showed some important points. The slope geometry before the landslide had a total height of 82.152 meters, a slope inclination angle of 6°, and a slope length of 851.338 meters. The material properties of the existing wastedump include a specific gravity of 19 KN/m³, a cohesion of 45 KN/m², and an inner shear angle of 10°. The safety factor before the landslide with these parameters was 1.036. After re-analysis, the factor of safety value became 0.967 with the new material properties: specific gravity 19 KN/m³, cohesion 35 KN/m², and inner shear angle 10°. Slope geometry recommendations using Bishop's method resulted in a factor of safety of 1.394 with a single slope height of 10 meters and a slope angle of 35°. The width of the slope varied from RL -10 to RL 60, with lengths of 100m, 100m, 100m, 70m, 70m, 70m, 100m, and 262m respectively.Keywords: Kestabilan Lereng, Metode Bishop, Wastedump Existing, Faktor Keamanan, Analisis Balik.
PREDIKSI FRAGMENTASI HASIL PELEDAKAN MENGGUNAKAN MODEL ROCK ENGINEERING SYSTEM (RES) DI PT BHUMI RANTAU ENERGI KABUPATEN TAPIN PROVINSI KALIMANTAN SELATAN RAHUL GONZALES; DEDI YULHENDRA
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125027

Abstract

Blasting is the process of breaking up rock (overburden) using explosives. The size of the blasted rock is called fragmentation. The size of the blasted rock fragmentation has an important influence on the next process (excavation and transport). Blasting at PT Bhumi Rantau Energi (BRE) produced 30.925% boulders so that the digging time required was 12.33 seconds which resulted in a digging rate of only 510 BCM/hour. This is still far from PT BRE's target of boulder size <20%, digging time of 11 seconds and digging rate of 550 BCM/hour. Therefore, a method is needed to predict the fragmentation size resulting from the blasting geometry and site conditions. The Kuz-ram method is a commonly used method to predict fragmentation size, but it only considers a few factors of rock fragmentation formation. The Rock Engineering System (RES) model has more parameters to predict fragmentation size than the Kuz-ram method. Therefore, the RES model with 14 parameter* was used in this study to predict the fragmentation size of blasted rock. The analysis results stated that the RES model has an R2 value of 0.43, which means that there is a moderate relationship between the actual fragmentation and the prediction of the RES model. In addition, the evaluation result found that this model only has an RMSE value of 9.37, which means that the probability of error is small, making it suitable for predicting the fragmentation size.Keyword: Blasting, Fragmentation, Rock Engineering System
Evaluasi Kestabilan Sistem Penyangga pada Tambang Bawah Tanah Menggunakan Rock Mass Rating (RMR) pada Lubang Tambang Tambang Batubara BMK-30 CV. Bara Mitra Kencana Kec. Talawi, Kota Sawahlunto. William Putra Simbolon; raimon kopa
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125177

Abstract

There are cracks and flaws in the wood that do not match the strength of the surrounding rock. There is a spacing between supports that exceeds the SOP of 2.5 m-2.8 m, which violates the company’s SOP of 1 m-1,5 m. The company does not have a buffer design appropriate for the rock load. In this study, the authors used quantitative research methodology. Quantitative research is research by obtaining data in the form of number or summarized qualitative data (Sugiyono, 2018:8). In conducting this research, there are primary data obtained directly from the field, namely the geometry of the opening hole, the dimensions of the wood support the condition of the discontinuous plane, the point load index value of the rock, the compressive strength value of the wood. A. the average value of saturated content weight of coal is 1.330 gr/cm3 and siltstone has a saturated content weight of 2.506 gr/cm3. B. the average value of point load index of coal is 0.246 MPa and siltstone has an average point load index of 0.837 gr/cm3. C. the results of converting PLI values to UCS, coa; has an average UCS value of 2,90MPa and siltstone has an average UCS value of 9.890 MPa. Based on the weighting of rock mass classes using the RMR system method, the results show that the right and left wall rock mass class, which is coal, has a value of 56 and includes class III rocks, and siltstone rocks are included in class II rocks as roofs. The standing time value of the roof opening hole section is 7,000 hours or for 291.67 days and the span with the provision of 4 meters of progress based on the specifiend RMR. From the wood specific gravity test, the average value of wood specific gravity is 0.51, which indicates that the wood used by CV. Bara Mitre Kencana is in class III. And for the bending strength value of wood of 623.75 kg/cm3. From the above calculations, the FK cap value is obtained after evaluating the distance between the supports. From the results of the above analysis, the FK value ≥1.5 is obtained with a support distance of 1.38 m.Keywords:  Evaluation, Geometry, Faulting, Rock Weighting, Opening Geometry
Evaluasi Penerapan Sistem Manajemen Keselamatan Pertambangan (SMKP) di IUP 206 Ha Batu Gamping, PT Semen Padang, Sumatra Barat Risma Erwi Gusvita; Fadhilah Fadhilah; Heri Prabowo; Tri Gamela Saldy
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i2.125128

Abstract

At the mining company PT Semen Padang there are still several cases of work accidents and a decrease in the achievement level of SMKP audits in 2022, especially in the 206 Ha Limestone IUP by 69%. This study aims to analyze work accident statistics for 2021-2022 and evaluate the implementation of SMKP in IUP 206 Ha Batu Gamping, PT Semen Padang in 2023. This research is an evaluation design study with a quantitative descriptive approach. Data collection techniques started from literature studies, questionnaires, review of documents & records, observations and interviews. The results showed that there was an increase in the frequency of accidents (FR) and the severity of accidents (SR). In 2021 the FR and SR values are 0 while in 2022 the FR values are 0.51 and the SR values are 3.60. The results of the questionnaire analysis related to the implementation of SMKP in IUP 206 Ha in 2023 show an increase with a compliance percentage value of 81% using a Likert scale calculation. The elements that must be improved are Element IV Implementation, Element VI Documentation and Element VII Management review & performance improvement.

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