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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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PERENCANAAN REKLAMASI LAHAN BEKAS PENAMBANGAN PIT D1 PT. AMAN TOEBILLAH PUTRA SITE LAHAT SUMATERA SELATAN Eka Retno Sari; Ansosry Ansosry; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

The steps of the mining activities in PT. Aman Putra Toebillah includes the activities of land clearing, stripping the ground cover, the exploitation of coal, transporting, processing and marketing of coal. After the mining is finished, the ex of mining area will leave an opening hole. Therefore any company of mine obligatory to implement reclamation of ex mining area to maintain environmental sustainability. Based on Ministerial Regulation Number 7 Year 2014, reclamation are activities during of mining to organize, restore, and improve the quality of the environment and the ecosystem to the function. Therefore, it takes a good planning, so the rate reclamation success can be realized.Mining avtivities include the arrangement of land reclamation. The Inpit Dump will be covered with land cover. Then on the top layer is covered with top soil as a medium growing plants. After the arrangement is finished then the Inpit Dump will be replanting (revegetation). To prevent the erosion, we made waterways, do care and give limes to settling pond to prevent the formation of acid mine water.Based on calculations of planning reclamation and revegetation, direct costs for reclamation activities and revegetation on the Pit D1 PT. Aman Toebillah Putra amount to Rp RP 14.104.226.892,00 and indirect costs amount to Rp 1.339.901.555,00. Then the total cost of reclamation and revegetation on the site amount to Rp 15.444.128.447,00.Keywords: Reclamation Plans, Costs, Pit D1

Studi Penempatan Sumur Resapan Berdasarkan Nilai Laju Infiltrasi, Kualitas Fisik Air, dan Tekstur Tanah pada DAS Air Dingin dan Batang Kandis Bagian Tengah-Hilir, Kota Padang Rizka Mutiara; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Spontaneous resettlement of people to the eastern part of Padang City which is a catchment area and the development continues so that open land shifts function to residential land, offices, etc. This causes a reduction in catchment areas which can result in flooding and decreasing environmental quality, especially groundwater. To minimize the occurrence of flooding in the Air Dingin and Batang Kandis Watershed a placement study of infiltration wells based on the infiltration rate, physical quality of water, and soil texture. This research was conducted in 41 points in the middle to downstream of the Air Dingin and Batang Kandis Watershed. Data obtained in the form of physical quality data of water, soil texture, and other supporting data. Based on infiltration rate data, the average infiltration rate in the study area of 0.11826 cm / minute is classified of low recharge areas (<0.5 cm / minute). After doing the research by looking at statistical analysis, physical quality of water, soil texture, lithological of rocks, and land use in the Air Dingin and Batang Kandis watersheds. Then the placement of infiltration wells is spread over 20 points in the Air Dingin and Batang Kandis Watershed in Padang City. Keywords: Infiltration Wells, Infiltration Rate, Physical Quality of Groundwater, Soil Texture, Rock Lithology

Analisis Investasi Pengadaan Alat Berat Untuk Mencapai Target Produksi Batu Gamping 240.000 Ton/Tahun Dengan Metode NPV dan IRR Di PT. Anugrah Halaban Sepakat Indi Monika; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

In this research the planning of the requirement of gear-loader and conveyance tool that will be discussed is short-term planning for 5 years to the needs of digging tools using Volvo Excavator EC 210, Caterpillar 320 D and transport equipment using Nissan CW 340. At PT. Anugrah Halaban Agreed to the procurement of equipment for the procurement and the means of procurement is carried out ie direct purchase and lease-purchase of both methods used certainly have weaknesses and advantages respectively, for it required analysis of the most profitable way with the company PT. Anugrah Halaban Agreed in the procurement of dug-load and hauling tools. In this research, the amount of ownership cost and operational cost is different for each unit of equipment and also there are difference of ownership cost and operational cost for rented equipment with direct purchased equipment. Cash Flow obtained, then analyzed by using the method of Net Present Value (NPV) so it can be known whether the available alternative is feasible economically. For cash purchase alternatives from existing cash flow, the NPV value for cash purchase alternatives for each tool is CAT 320D for $ 6,658,401.81, Volvo EC 210 $ 3,869,332.88 and Nissan CW 340 $ 1,624,886.73 so that NPV 0, then the alternative is declared economically viable. And for the alternative lease from the existing cash flow obtained NPV value for alternative leases for each tool is to for CAT 320D for $ 6,098,28.65, Volvo EC 210 $ 2,144,823.13 and Nissan CW 340 $ 1,121,962.12 so that NPV 0, then the alternative is declared economically viable. From the research that has been done in getting the results of comparison of NPV and IRR analysis can be stated that the most advantageous tool procurement alternative to the condition of the company at this time is buy-directly because NPV buy is greater than NPV rent-purchase.Keywords: Investment, NPV, IRR, Heavy Equipment, Leasing

ANALISIS PERIZINAN KEGIATAN USAHA PERTAMBANGAN PADA KAWASAN HUTAN PRODUKSI DENGAN SISTEM INFORMASI GEOGRAFIS DAN PERATURAN KEHUTANAN DI KOTA SAWAHLUNTO Yandri Kurniawan; Rijal Abdullah; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 1, No 1 (2014): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

ABSTRACT The licensing of mining venture activity which occur in the forest for both protected forest and production forest is a very often problem which happened at the district/city level. It can not be avoided since the existence of the large mine material is located in those forests. Therefore, there should be an analysis through (SIG) Geographic Information System application and forestry legilslation to the licensing of mining venture which take place in the forest.The purpose of this research is to obtain the data about Mining Venture Business License in Sawahlunto City which is located at the production forest and to reveal the legislation related with the use of production forest for mining venture activity. The benefit of this research is to provide description and information to the mining entrepreneur in doing mining venture activity at the region of production forest. The method being used is SIG application and Forestry Regulation. The result of the analysis which can be obtained in this research is WIUP and the Map of Forest Region in Sawahlunto City and forestry regulation which is related with the use of the forest region. In Sawahlunto City, there 12 (twelve) IUP (Mining Venture License) which are located at the region of Production Forest for both HP (Regular Production Forest) and HPK (Conversion Production Forest) out of 15 IUP that has been published by the Government of Sawahlunto CityThe research finding can be used as a reference and information to know the mining venture license which is located in the region of production forest based on the forestry legislation Keyword: Mining Venture Business License, The Region of Production Forest. ABSTRAK Perizinan kegiatan usaha pertambangan yang berada dengan kawasan hutan, baik pada hutan lindung dan hutan produksi merupakan permasalahan yang sangat sering terjadi pada Kabupaten/Kota. Hal ini tidak bisa dihindarkan dikarenakan keberadaan bahan tambang itu sendiri yang sebagian besar berada di kawasan hutan tersebut. Oleh karenanya diperlukan kegiatan analisis melalui aplikasi Sistem Informasi Geografis/SIG dan peraturan perundang-undangan kehutanan terhadap perizinan usaha pertambangan yang berada pada Kawasan Hutan.Tujuan dari penelitian ini adalah untuk mendapatkan data mengenai Wilayah Izin Usaha Pertambangan di Kota Sawahlunto yang berada di kawasan hutan produksi dan mengungkapkan peraturan perundang-undangan yang berkaitan dengan penggunaan kawasan hutan produksi untuk kegiatan usaha pertambangan.Manfaat dari penelitian ini yaitu memberikan gambaran dan informasi kepada para pengusaha pertambangan dalam melakukan kegiatan usaha pertambangan dalam kawasan hutan produksi.Metode yang digunakan adalah dengan aplikasi SIG dan Peraturan Kehutanan. Hasil analisis yang didapatkan dalam penelitian ini adalah WIUP dengan Peta Kawasan Hutan di wilayah Kota Sawahlunto dan peraturan kehutanan yang berhubungan dengan penggunaan kawasan hutan tersebut. Di Kota Sawahlunto, dari 15 (lima belas) izin usaha pertambangan yang telah diterbitkan Pemerintah Kota Sawahlunto, terdapat sejumlah 12 (dua belas) Izin Usaha Pertambangan (IUP) yang berada di kawasan Hutan Produksi, baik di Hutan Produksi Tetap (HP) maupun Hutan Produksi Konversi (HPK).Hasil Penelitian dapat dipakai sebagai referensi dan informasi untuk mengetahui perizinan kegiatan usaha pertambangan yang berada di kawasan hutan produksi sesuai dengan peraturan perundang-undangan kehutanan. Kata Kunci: Izin Usaha Pertambangan, Kawasan Hutan Produksi.

Evaluasi dan Analisis Kualitas dan Kualitas Udara pada Terowongan Lubang Japang di Kota Bukittinggi Teddi Triandana; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Lubang Japang is an ancient tunnel that build during Japanesse’s colonizing in Indonesia. However it refuctioned after Indonesian Independency and officially became tourist area at 1984. Known as a tourist destination in Bukittinggi, Lubang Japang tunnel has excalation amount of visitors yearly. Tunnel has the limitation amount and quality of circulated air in it. There are range borders such as determinations of Kepmen 555.K/26/M.P.E/1995 that organizing air quality and quantity in the tunnel for circulationing process. Then the analysis between air quality and quantity in tunnel and range borders to satisfy the requirment of fresh air for visitor is needed. Base on range borders of Kepmen 555.K/26/M.P.E/1995 in point 2 to point 11 at certain time and weather terms have percentage of humidities below the mark along with point 9 that has the lowest effective temperature in 16,85%. Meanwhile the gas contents (O2 dan CO2) of all locations in Lubang Japang tunnel are safe and up to standard. So by the comparison between current air circulation’s debit and respiration requirment per-second based on Kepmen 555.K/26/M.P.E/1995 known that the maximum of visitors are 398 persons periodically, yet amount of visitors are down to 196 persons while puoring rain. Then the result of air usage evaluation for visitor at the moment is fulfilled.Keywords: air quantity, temperature, air circulation, tunnel, range border

Optimalisasi Load In Coal Handling Facility 4 (CHF 4) Site Banko Barat di PT Bukit Asam Tbk Tri Yeli Marsa; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT Bukit Asam Tbk, has a belt conveyor load in and load out system of each coal handling facility in the coal production unit. The conveyor belt at PT Bukit Asam has the same size as the TPH which varies according to the capacity needed per each conveyor belt for coal delivery will differ according to the shipping path. for conveyor belt production capacity will depend on the minimum production capacity. PT. Bukit Asam in 2019 determines an increase in production targets of 26 Million ton Thus, an optimization is needed so that the loading lanes at the coal handling facility 4 (CHf 4) can be used properly.in this research, combined theory with field data, in order to obtain problem solving. And the results of data processing will be analyzed so that it can later be produced at a meeting.Based on the results of research conducted can conclude the following points. First, the actual capacity of the dump hopper is 263,600 tons with a mechanical capacity of 250,000 tons. The second minimum belt conveyor production capacity in shipping coal to the stockpile is 775.00 tons / hour. Third, some anticipations to increase production targets include: selective mining, redesign of dump hopper 2.1 and routine checking of units before operation. Fourth, change the diameter of the drum instead of raising the front belt from4.8 m / s to5.2 m / s.Keywords: Produktivitas, Belt Conveyor, Load In, Coal Handling Facility, Dump Hopper, Production

Evaluasi Kinerja Crushing Plant Dan Belt Conveyor Dalam Pengolahan Dan Pengiriman Limestone Ke Storage Indarung di PT. Semen Padang Fitri Eka Yulia; Raimon Kopa; Yoszi Mingsi Anaperta
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

PT. Semen Padang has 4 units of crushing plant there are crusher II, IIIA, IIIB, and VI. Production of limestone crusher in April 2017 is 692,755 tons, while the target of limestone crusher production is 804,749 tons so the target of limestone crusher production in PT. Semen Padang in April 2017 was not achieved. This is caused of the target crusher working hours are not achieved, frequent improvements in the crusher, and the change of usage belt conveyor lines. The purpose of this research is to get the performance value of crushing plant and belt conveyor, get the production capacity of belt conveyor, reveal the ideal crusher working system so we can get the ideal limestone crusher production.This research was combined between theory with field data, then we can get the problem solving approach, and the result of data processing will be analyzed for subsequent to be generated a recommendation.Based on the research result can be concluded. First, the performance of crushing plant and belt conveyor is not optimal because the work efficiency of limestone crusher II is 26,20%, crusher IIIA is 21,54%, and crusher IIIB is 28,33%. Second, the minimum production capacity of the belt conveyor is 1,409.7 tons/hour. Third, the ideal crusher working hours is 672 hours in a month so that the production of limestone crusher 810,992 tons in a month. Keyword: Production target, limestone crusher, belt conveyor

Upaya Meminimalisir Kecelakaan Kerja di Area Penambangan PT. Putra Perkasa Abadi jobsite Borneo Indobara, Kabupaten Tanah Bumbu, Kalimantan Selatan Septiadi Budiyanto; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Unsafe conditions and unsafe actions at PT Putra Perkasa Abadi are the main causes of accidents that cause loss and loss to humans and companies, damage to equipment, disrupt production and others. The number of work accidents has increased dramatically at the beginning of 2018, there are still employees who ignore the use of personal protective equipment, and there are still hazards found in the work environment. This problem aims to reveal the work location that has the highest potential hazard in the mining area, the potential hazards that exist in the work environment and reveal what actions should be taken to prevent work accidents, and reveal work accident statistics. The implementation of K3 in companies is still not optimal, this is evident in the increasing number of work accidents in early 2018. The danger cannot be completely eliminated, but can be minimized. this study uses the Job Safety Analysis and Job Hazard Analysis methods to identify and analyze hazards on a job. after identifying the danger, so that to control it will be given a recommendation. Not only do hazard identification activities, but this research will also make several Job Safety Analysis and Job Hazard Analysis. By analyzing these two requirements, it is expected that the Job Safety Analysis and Job Hazard Analysis will facilitate the establishment of an occupational health and safety management system. Keywords: Production, Safety, Danger, Job Hazard Analysis, Job Safety Analysis

Kajian Laju Infiltrasi Akhir pad DAS Batang Kandih Kota Padang Ditinjau dari Perbedaan Litologi Batuan, Tutupan Lahan,Kadar Air, Porositas Batuan, Konduktivitas Hidrolik Jenuh, Kepadatan, dan Matric Suction Ermaningsih Ermaningsih; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Infiltration flow is quantity of water that enters soil per unit time. This is an important part in hydrology cycle that gives an effect o quantity of water in land. This study is purposed to find out final-filtration speed which is reviewed from differences in rock lithology, land covering, water concentration, rock porosity, saturated hydraulic conductivity, density, and metric suction. This study was conducted in alluvial of Batang Kandih Koto Tangah district Padang city in 15 locations with grid of 1.5 km x 1.5 km. Study method was used double ring infiltrometer for filtration speed; hand-boring for rock lithology; falling head testing and constant head for saturated hydraulic conductivity; sandcone testing for land density; tensiometer for metric suction; and physical sampling testing in laboratory. Data was analyzed by spatial model and statistical analysis, so that it was resulted in filtration speed distribution model in alluvial of Batang Kandih, and also relationship between water concentration, rock porosity, saturated hydraulic conductivity, density, and metric suction toward number of filtration speed. This study showed that final-filtration speed in alluvial is 0.128 cm/minute; it means that absorption zone is in category of VI/E with very low absorption capability. With statistical modeling, it is obtained that Y = 57.585 X1 + 0.014 X2 + 0.621 X3 – 0.001 X4 + 0.000 X5 + 0.493 with Y = filtration speed, X1 = conductivity, X2 = rock porosity, X3 = density, X4 = water concentration, X5 = metric suction. While R2 is 0.83 means that 0.83 or 83 % of filtration speed score is influenced by these variables and another 17% is influenced by other variables. Water rate of flow that can enter the soil in alluvial is 76,775.58 m3/hour/km2, so that water volume that can enter soil per hour is 76,775.58 m3.Keywords: Infiltration speed, water concentration, land covering, statistical modeling, hydraulic conductivity

Evaluasi dan Perbaikan Jalan Tambang Menggunakan Software Garmin Virb Xe di PT Riung Mitra Lestari Job Site Embalut Kalimantan Timur Argi Saputra; Sumarya Sumarya; Bambang Heriyadi
Journals Mining Engineering : Bina Tambang Vol 4, No 3 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT Riung Mitra Lestari as a company engaged in mining contractors with the main products overburden and coal production is also very dependent on production achievement. Based on data from the engineering department that in June 2017 there was a production loss of 203,4 BCM. Broadly speaking productivity contributors can be divided into 3 areas: front loading, main road, and disposal area. The main road greatly affects the productivity of loading equipment and its suitability with transport equipment (DT). PT Riung Mitra Lestari in December 2017 brought a new tool called Garmin VIRB XE. Hardware that is operated via wireless networks to cellphones and computers. Some important features in this tool such as photos, videos, speed, coordinates, elevation and slope of the road. Based on road conditions, give contribute 10.293 BCM of non-attainable production. The corrective action is the allocation of 1x DZ 85 for repair the road, making new roads to adjust the grade, and stockpiling with hard material. The results obtained from the study were an increase in the speed from 22.3 Km/hour to 26.1 Km/hour, as well as pressing the breakdown spring number from 16.3 times per month before repairs to 7.1 times per month.Keywords: Productivity, Speed, Garmin Virb Xe, Mine Road, Repair Road

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