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Journals Mining Engineering : Bina Tambang

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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.

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Articles 609 Documents

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Analisis Pengaruh Parameter Konduktivitas, Resistivitas dan TDS Terhadap Salinitas Air Tanah Dangkal pada Kondisi Air Laut Pasang dan Air Laut Surut di Daerah Pesisir Pantai Kota Padang Khairunnas Khairunnas; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract.The geographical boundary of the Padang city bordering the sea has an impact like the potential for sea water intrusion. Guo and Jiao in Amri (2014) naturally seawater cannot enter far into the land because ground water has piezometric which suppresses more strongly than sea water, so an interface is formed as the boundary between groundwater and sea water. This situation is an equilibrium condition between sea water and ground water. Therefore the potential for sea water to enter land is only around the coast.This research was carried out at 107 measurement points scattered around the coastal area of Padang City. The data obtained are primary data obtained based on measurements in the field, namely data on the value of Salinity, Conductivity, Resistivity and TDS of shallow groundwater in high tide and low tide seawater conditions.Based on the measurement results obtained 7 measurement points which are considered anomalies, which have values that are far different from the overall measurement point. Perform Linear Regression Analysis and Correlation using Microsoft Excel and SPSS. Zoning mapping is obtained from processing data using ArcGis software. Keywords:Salinity, Conduktivity, Resistivity, TDS, Sea Water Intrusion

Optimalisasi Peralatan Tambang Komatsu HD 785 dan Caterpillar 6030 BH Menggunakan Metode Quality Control Circle Untuk Memenuhi Target Produksi Batu Gamping Pada PT. Semen Padang (Persero) Tbk. M. Fadly; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract.The process of loading and hauling limestone at PT. Semen Padang from the mining front to the crusher uses a combination of Caterpillar 6030 BH Excavator and Komatshu 785 Dump Truck mining equipment. Limestone production target in August 2018 is 853,984 tons.This study uses the QCC method to increase the productivity of mining equipment. In the actual achievement before the increase in productivity of the digging equipment was 80,4 % and transport equipment 72,1 % of the production target in August 2018. Based on the Paretto analysis the main problem and the dominant cause of not optimal productivity of mining equipment was the amount of work time wasted 84, 5 hours / month for loading and unloading equipment and 102.88 hours / month for conveyance from available work time.By improving the wasted work time with the QCC method productivity increases to around 22,2 % for loading and hauling equipment 28 % of actual productivity. After increasing the time wasted to 27.97 hours / month for loading and unloading equipment and 28.7 hours / month of conveyance.Keywords: Excavator, Dump Truck, Produktivity, Quality Control Circle, Paretto

PEMODELAN AKUIFER HASIL PENGUKURAN RESISTIVITY STUDI KASUS KOTA PADANG Roro Rasi Putra; Adree Octova; Mulya Gusman
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Air merupakan salah satu aspek terpenting dalam kehidupan, hal ini dikarenakan seluruh makhluk hidup membutuhkan air untuk mempertahankan hidup. Sumber-sumber alternatif untuk memenuhi kebutuhan air bersih salah satunya adalah air tanah. Pertumbuhan penduduk di Kota Padang telah mengakibatkan perlusan pembangunan perumahan yang menyebabkan peningkatan permintaan air, sehingga dapat mengakibatkan penurunan muka air tanah akibat penarikan berlebihan. Penelitian ini bertujuan untuk memodelkan akuifer dalam rangka meningkatkan kemampuan untuk memahami fluktuasi kedalaman muka air akibat ekstraksi dan hidrogeologi akuifer. Salah satu cara identifikasi akuifer adalah dengan menggunakan geolistrik. Pada penelitian ini, peneliti menggunakan metode geolistrik satu dimensi yaitu vertikal electrical sounding (VES). Metode ini digunakan untuk pengambilan data resistivity batuan di Kota Padang. Pengambilan data sounding geolistrik tersebar sebanyak 36 titik di Kota Padang. Hasil pengukuran menunjukkan nilai resistivity batuan di Kota Padang berkisar anatara 0.86-129.264 Ohm-m. Sebagian besar nilai resistivity batuan, tersusun atas batuan dengan nilai resistivity 601-700 ohm-m, setelah itu batuan dengan resistivity 701-800 ohm-m, 401-500 ohm-m, dan 301-400 ohm-m. Berdasarkan hasil pengolahan model resistivity batuan, didapatkan bahwa rata-rata kedalaman akuifer di Kota Padang adalah 1,48m dan rata-rata ketebalan akuifer adalah 5,41m. Dengan elevasi ditemukan akuifer pada daerah tepi pantai adalah pada elevasi 0m hingga -80m dan pada daerah menjauhi pantai yaitu pada elevasi +320m hingga +120m.Katakunci: Akuifer, Resistivity, Geolistrik, Vertikal Electrical Sounding

Job Safety Analysis dan Rencana Anggaran Biaya Dalam Rangka Penerapan Sistem Manajemen Keselamatan dan Kesehatan Kerja di PT. Tebo Agung International, Kabupaten Tebo, Provinsi Jambi Arif Setiawan; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Tebo Agung International is one of the private companies engaged in coal mining. This company is located in Semambu Village, Sumay District, Tebo Regency, Jambi Province. At the beginning of November 2018, PT. Tebo Agung International plans to conduct mining operations. At present the company is still in the preparation stage in implementing Occupational Safety and Health Management System as the construction and exploitation process progresses. To fulfill the regulations in implementing Occupational Safety and Health Management System, making Job Safety Analysis and Occupational Health and Safety economic studies needs to be done to find out the Budget Plan that will be issued by the company. Based on the results of the discussion, the conclusions about the potential hazards in the construction process the most risk is that the head is crushed by material from the rising work. In the process of exploitation, a potential danger that often occurs is falling while doing P2H and the most risk is a collision with a compressing unit that allows the victim to properly damage the unit. Then, the value of the occupational safety and health budget plan for implementing the Occupational Safety and Health Management System is Rp. 179.017.000. Keywords: Job Safety Analysis, Budget Plan, Occupational Safety and Health Management System, Personal Protective Equipment

Analisis Stabilitas Lereng Ruas Jalan Sicincin–Malalak Km 31 Kecamatan Malalak, Kabupaten Agam, Provinsi Sumatera Barat Evansharsal Suedi; Raimon Kopa; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Landslide natural disasters are one of the natural disasters that cause fatalities and property. Based on the frequency of events, intensity, and geological conditions, the area of Kabupaten Agam Sumatera is an area that must be aware of the potential for landslidesthis is shown in the vulnerability map of soil movement by the Dinas Energi dan Sumberdaya Kabupaten Agam Sumatra Barat. Malalak District Agam Regency is one of the zones that has a high vulnerability to soil movement. This is shown in the Agam Regency Landslide Hazard Map which needs to consider slope security because it has many factors triggering landslides, especially in its purpose as road access.This research is classified into applied research. Slope stability in this study will use slope geometry data, physical properties, mechanical properties, Rock Quality Designation (RQD) rock mass classification, Rock mass Rating (RMR) and using the Bishop Simplified method (FK or Safety Factor) supported by software. analysis of avalanche types and security factor analysis.As a result of the research carried out on the Malalak KM 31 road section, it can be concluded the following points. The rock type of the slope compiler is andesite with the value of rock mass classification with a value of RMR of 68 including in the second (II) class rocks with good rock categories. The results of kinematic analysis indicate the potential for Baji avalanches. Ground vibration that is received by the slope affects the stability value with the value of the earthquake vibration based on the Indonesian seismic map of 0.6 g. In determining the value of the actual slope safety factor using security factor analysis software obtained FK value in dry conditions of 4,000, natural conditions of 3,979, saturation conditions of 3,966 this shows the condition of the water in the rock does not significantly affect the value of slope safety factor. Whereas the value of the safety factor with the influence of vibration is obtained in a dry condition is 2,659, the natural condition is 2,642, the saturation condition is 2,638 from the result of the vibration effect on the stability of the slope has a considerable decrease in the safety value of the slope but shows that the slope condition is still stable. Keywords: Slope Stability,Road ,Ground Vibration ,RMR, Safety Factor

Evaluasi Kinerja Alat Gali Muat dan Alat Angkut Untuk Mencapai Target Produksi Pada Penambangan Batukapur di Area 242 (Tajarang) PT. Semen Padang Heksali Preduanda; Ansosry Ansosry
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

This study aimed to calculate the actual productivity of mechanical devices, to get an effort to improve work efficiency to achieve the planned production target, to get the transportation equipment needed to reduce waiting time by using queuing theory calculations in 242 Area limestone mining (Tajarang) PT. Semen Padang. The mining system was done by the quarry method which was of type side hill type with a production target in 2019 of 5,196,699 tons with an average production target of 1,200 tons per hour. The equipment used consists of 1 unit excavator Hitachi EX2500-6 and 5 units of Komatsu HD 785-7 dump truck. The actual productivity of the two devices was able to produce 1,174.85 tons/hour and 975.55 tons/hour respectively. By improving the effective working time, work efficiency could be increased to 86% and made improvements to the composition of the equipment obtained productivity results 1 unit excavator of Hitachi EX2500-6 able to reach the number 1,443.38 tons/hour and 4 units of Komatsu HD dump truck transported 785-7 of 1,362.72 tons/hour. The results of this study mean that the effective time of work and the harmony of work of actual mechanical devices has not been maximized.Keywords: Productivity, Work Efficiency, Match Factor, Excavator, Dump Truck.

Evaluasi Pengaruh Geometri Jalan Angkut Terhadap Produktivitas Dump Truck pada Pengangkutan Batubara dari Loading Point ke Stockpile di Site Ampelu PT. Nan Riang Kecamatan Muara Tembesi Kabupaten Batanghari Provinsi Jambi Nanda Oktafian; Sumarya Sumarya
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Nan Riang is a coal mining company located in Kecamatan Muara Tembesi, Kabupaten Batanghari, Provinsi Jambi. The daily coal production target is 2,000 tons / day, while the actual production is 1,216,148 tons / day. One of the factors that affect the non-achievement of production targets is the condition of the haul road. Based on observations in the field, the general condition of the haul road was bumpy and there were many materials scattered about and when they passed there were transport equipment which had to stop due to the narrow road. Based on geometric measurements of the actual haul road, the actual road width was between 8.4-18.79 meters while the theoretical width of the straight road was 12 meters. The actual bend road width ranges from 10.44-19.21 meters while theoretically the bend road width is 17 meters. The actual grade of road starts from 1.20% to 15.32% while the ideal road grade is 8%. The actual cross slope ranges from 0-131 mm / m. The cross slope value for a 12 meter road width is 0.04 and a height difference of 24 cm. The superelevation value for the 17 meter bend width is 0.05 and the height difference is 85 cm. After being evaluated, there were 2 straight road width segments that needed to be added in width, namely BC and CD segments and 3 bend road width segments, namely AB, FG, and HI segments, as well as decreasing grades in BC segment and EF Productivity of dump truck CWM 330 PS with conditions Actual amounted to 1,216,148 tons / day. Productivity of dump trucks CWM 330 PS after improvements in work efficiency are 1,884.02 tons / day. Theoretical productivity of dump truck CWM 330 PS after improvement in work efficiency and ideal road geometry is 2,246.12 tons / day.Keywords: Cycle Time, Road Geometry, Coal, Production, Work Efficiency.

ANALISIS PENURUNAN SUHU UDARA DI AREA PRODUKSI TAMBANG BATUBARA BAWAH TANAH PT. BUKIT ASAM (PERSERO) TBK, UNIT PENAMBANGAN OMBILIN, SAWAHLUNTO, SUMATERA BARAT Fedi Fedi; Bambang Heriyadi; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

PT. Bukit Asam – UPO is one of coal underground mining which conduct mine activity in Ombilin I (Sawahluwung), Ombilin II (Waringin-Sugar) and Ombilin III ( Sigalut). At underground mining, ventilation system is really important for human’s breathing need (worker), to netralize toxic gases, reduce ash concentration and control temperature . Ventilation system in Sawah Luwung underground mining used suction system with 32,76 m3/second air out quantity, while for air in is 32,33 m3/s through three in pit such as Adit Sawahluwung amount of 23,32 m3/s, Lurah Sapan I 6,81 m3/s and 2,28 m3/s in Lurah Sapan II. The difference of quantity of air in with air out is 0,43 m3/s which possible caused by adding air in in Mine Vein. The actual air temperature at work/production J14C front area is 26oC and 27oC for front J15C. Air Temperature decreasing is been done with two method such as putting ice in and out of thermos bottle. For thermos bottle trial it is conducted the number of air temperature decreasing in Front J15C is about 2,5oC – 3oC, while for front J14C is conducted 2oC – 2,5oC. Meanwhile without thermos bottle trial (putting ice in open section), temperature decreasing is 3oC – 3,5oC, and also 3oC in front J14. The result of air temperature decreasing between front J15C and J14C are different, which caused by the difference of duct length and the duct length in J15C is 15 meters and for J14C is 71 meters length. Based on this research, the tenacity of ice is 3 – 3,5 hours.

Analisis Teknik Kebutuhaan Alat Gali Muat dan Alat Angkut Menggunakan Simulasi Teori Antrian Pada Produksi Batu Kapur Area Eksisting 206 PT Semen Padang (Persero) TBK. Hari Sentosa; Sumarya Sumarya; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Semen Padang owned by the unions, located at Indarung Padang,West Sumatera The hour barriers based on report operations tool tools digging and hauling of period may 2017 PT Semen Padang. that is, digger tool 7,15 hours and hauler tools 7,46. Based on the study of the hour 4,2 hours. PT. Semen Padang Target of production and realization at a Eksisitng 206 may 2017 year the target of 320 Ton/hour for 1 unit of dump trucks, based on the analysis of the realized 282,31 Tons/hour, while based on the study of the production of obtained 363,58 tons/hour. Based on observations in field, conditions of work and the front area dumping still experiencing queue. The availability of tools and tool unloading hauler at a area 206 existing excavators serve the 6 units of dump trucks. Match factor of actual field is 1,18. Based on a review of the results of the productivity gained 1 unit excavators serve the 5 units of dump trucks and based on the theory of queues device used tool transport 5 units of dump trucks. As for the correction factor in the match after having examined 0,99 or close to 1.Keywords: Abstract. PT. Semen Padang owned by the unions, located at Indarung Padang,West Sumatera The hour barriers based on report operations tool tools digging and hauling of period may 2017 PT Semen Padang. that is, digger tool 7,15 hours and hauler tools 7,46. Based on the study of the hour 4,2 hours. PT. Semen Padang Target of production and realization at a Eksisitng 206 may 2017 year the target of 320 Ton/hour for 1 unit of dump trucks, based on the analysis of the realized 282,31 Tons/hour, while based on the study of the production of obtained 363,58 tons/hour. Based on observations in field, conditions of work and the front area dumping still experiencing queue. The availability of tools and tool unloading hauler at a area 206 existing excavators serve the 6 units of dump trucks. Match factor of actual field is 1,18. Based on a review of the results of the productivity gained 1 unit excavators serve the 5 units of dump trucks and based on the theory of queues device used tool transport 5 units of dump trucks. As for the correction factor in the match after having examined 0,99 or close to 1.Keywords: Digging and hauling; Hour barriers; Production; Match Factor; Queue

Rancangan Teknis Penambangan Batukapur pada WIUP OP 412 Ha di PT Semen Padang Sugiono Sugiono; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Mining technical design is a design process that is technically very important to do before the start of mining activities. In Indonesia, the government policy on mining engineering is regulated in the Minister of Energy and Mineral Resources Decree No. 1827K/30/MEM/2018 concerning Good Code of Practice for Mining Engineering. In this study, the author discusses the technical design of limestone mining at PT Semen Padang. The purpose of this technical design of mining is to get an overview of the stages of work in the limestone mining process to achieve the production target. Work starts from the geological modeling process in the form of block models. Furthermore, the work continued to the stage of making the ultimate pit limit design. Production scheduling is only for 2019, with proposed mining of 10,839,515 tons. With the provisions of the mining production target per three months, then the push back design is carried out. Next is the calculation of tool productivity. With known production targets and mining equipment productivity, mine scheduling can be done last.Keywords: Block model, ultimate pit limit, production scheduling, push back, and mine scheduling

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