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All Journal Journals Mining Engineering : Bina Tambang Journal of Degraded and Mining Lands Management JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknologi Informasi dan Pendidikan Prosiding Temu Profesi Tahunan PERHAPI MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN

Dedi Yulhendra

Universitas Negeri Padang

Author-ID : 1140342

Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Engineering Industrial & Manufacturing Engineering Social Sciences

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EVALUASI KINERJA UNIT CRUSHING PLANT JAQUES UNTUK MENINGKATKAN PRODUKSI GRANIT DI PT. TRIMEGAH PERKASA UTAMA KABUPATEN KARIMUN KEPULAUAN RIAU Riki Adha; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT Trimegah Perkasa Utama is a granite manufacturer in Indonesia. Granite is processedusing a crushing plant. Based on split stone production data at PT Trimegah Perkasa Utama in July2018, the company's granite stone production target of 180,000 tons / month was not achieved. Whilethe actual production obtained was 141,114 tons / month or 87.51% of the production target. This isdue to the many disruptions to repair and standby times during the processing of granite stones anddamage to the jaw crusher, so that from these disturbances the effective working time is reduced. Theresults obtained after repairing are reduction in repair time and standby time so that the primarycrusher's effective working time becomes 219.53 hours, 38.85% work efficiency and secondary andtertiary crusher's effective working time to 311.58 hours, work efficiency 53.72%. The value of crushingplant unit availability will also increase. Primary crusher unit production increased to 162,000 tons /month after increasing effective working time. Production of secondary and tertiary crusher units canbe increased by setting the gyratory crusher closed side setting to 71 mm and the cone crusher to 23mm.Keywords: Crushing Plant, Granite, Jaw Crusher, Production, Repair Time

Optimalisasi Produksi Alat Gali Muat Komatsu PC 400-18 dengan Metode Overall Equipment Effectiveness (OEE) pada Pengupasan Lapisan Overburden di PT. Surya Global Makmur Jobsite Pemusiran, Kabupaten Sarolangon, Provinsi Jambi Fitri Nadia; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Based on production data of stripping overburden from January to October 2019 in PT.Surya Global Makmur, the production of stripping overburden didn’t reach the target. This iscaused by standby times and breakdown times which causes the operating time and productivityto be low. To determine the potential improvement of a production process and the effectivenessof use an equipment, it is necessary to do an analysis using overall eqipment effectiveness (OEE)method. From the OEE value that hasn’t reached the ideal limit, six big losses analysis is carriedout to determine which losses that give the biggest contribution in the decreasing of equipmentproductivity. Then fishbone method is used to find the cause and effect of the decreasing ofequipment productivity and evaluation by referring to the result of identification of six big losses.After analysis and improvement methods are carried out, the production of Komatsu PC 400-18exceeded the target that has been planned. But the value of OEE is still < 85% haven’t achievedthe world-class OEE >85%, it can be concluded that the state of equipment is not good. It is betterto do improvement to reduced speed losses.Keywords: Produksi, Komatsu PC 400, Overall Equipment Effectiveness, Six Big Losses, Metode Fishbone

Evaluasi Pengaruh Penggunaan Jenis Material Dan Ukuran Kedalaman Stemming Dalam Kegiatan Peledakan Terhadap Hasil Fragmentasi, Cost, Dan Recovery Blasting Di PT. Koto Alam Sejahtera Kabupaten Lima Puluh Kota Provinsi Sumatera Barat Fitrya Monica; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 6, No 3 (2021): 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.v6i3.112495

. At PT. Koto Alam Sejahtera still found fragmentation of boulder ≥ 50 cm, when using drill cutting, it was found that the boulder was 32.1% on average, so it did not match the target ≤15%. When using 1-2 cm of split stone stemming material, it produces an average boulder ≥ 50 cm of 3,1 %. The use of 1-2 cm split stone stemming material results in a fragmentation size, better recovery compared to the result of using drill cutting stemming material, but the use of 1-2 cm split stone stemming material requires additional costs for the purchase of stemming material and in each stemming depth measurement. used to produce different fragmentation sizes. The blasting recovery target was not achieved in July, which was only 72.4% from 90%. The purpose of this study was to determine the effect of stemming depth and use of stemming material on stemming performance on the results of the distribution of fragmentation, costs and blasting recovery. The research method was carried out using stemming depth measuring 1.6 m, 1.7 m, and 1.8 m which will be tested using 2 types of stemming material, namely cutting drill and 1-2 cm split rock material. To recommend the selection with R.L Ash theory, 4 proposed depth measurements were obtained, so that the appropriate stemming depth measurement was 1.6 m. And the use of stemming material is based on actual blasting results using drill cuttings and 1-2 cm split stones. Because the result of 1-2 cm split stone blasting is better but requires additional costs for the purchase of stemming material, the mixing of the two materials is done to reduce the purchase cost, so a 65% split stone mixture is used and drill cutting 35%. The results of the recommendations using the stemming depth measure and the use of stemming mixture materials resulted in more optimal blasting with an average boulder percent of the two triyal activities analyzed using a split desktop resulting in a boulder> 50 cm of 0%. The average recovery value obtained was 90.7% and reduced blasting operation costs to $ 12.956114 / hole.

Rancangan Pelaksanaan Eksploitasi Nikel pada Blok X PT Paramitha Persada Tama Desa Boenaga Kecamatan Lasolo Kepulauan Kabupaten Konawe Utara Provinsi Sulawesi Tenggara Hendri Pranata; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 6, No 5 (2021): 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.v6i5.115174

PT. Paramitha Persada Tama is a company engaged in mining, especially nickel mining. PT. Paramitha Persada Tama itself has an IUP area of 175 Ha. PT. Paramitha Persada Tama conducts nickel mining with an open-pit mining system (surface mining) with the Cut and Fill method. To meet the production target of 30,000 tons/month with a Cut Of Grade (COG) value of 1.4% Ni and market demand of 1.8% Ni. The purpose of this study is to determine the amount of reserves in block X that will be exploited and how to design the stages of nickel mining in the company. From the estimation results carried out using the Inverse Distance Weight (IDW) obtained 843,975 tons of Ni. Based on the results of the Pit design that has been designed get the pit limit or the end of mining at elevation 40 masl. And alsodesign pits that have been designed sharedover several stages (Sequence). The phasingdone is staging period long(long term). In the first stage, the total mined reserves are 227,370 ton and overburden unloaded was 902,085 bcm. In the second stage, the reserves amounted to 565,950 tons and the overburden unloaded was 732,415 bcm and in the third phase, the reserves amounted to 50.655 tons with an overburden volume of 110,000 bcm.Keyword : Mineplan, Pit Design, Reserve, IDW, Sequence

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

RANCANGAN DESIGN TAMBANG TERBUKA JANGKA MENENGAH PADA TAMBANG BATUBARA DI WILAYAH TOWNSITE PT.BUKIT ASAM (PERSERO) TBK, TANJUNG ENIM, SUMATERA SELATAN Diah Wulandari; Dedi Yulhendra; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 2, No 1 (2015): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

PT Bukit Asam (Persero), Tbk is one of STATE-OWNED company engaged in the coal. Referring to Government Regulation No. 70 of 2009 about energy conservation management has to be planned with and integrated in order to preserve domestic energy resources as well as increasing efficiency in its use. In order to support the energy conservation policy, PT Bukit Asam (Persero) Tbk do optimization of final mining Pit. In an attempt to optimization of Mine Air Laya mine area expansion required water laya to optimize an existing backup.Therefore, PT Bukit Asam (Persero), Tbk is planning an expansion of the mine in the Townsite and plan long-term long-term planning will be made next his secondary.This research was conducted to find out the design of the mine, the mining sequence, scheduling production, mining costs and tool needs. Final does is analyze the quarerly planning of open mines and mine feasibility in terms of economical.Topographic data, the contour of the spreading of coal and mine design that had been planned for 5 years with a target of mining production 4.000.000 ton/year. Transport equipment and tools fit in the first year until the fifth year of the appropriate stable using 4 eksavator Pc 400 and nine truck Scania P30 with a capacity of 30 tons. While, mine made access roads with a width of 15 meters based on the widest transport tool. There is a disposal area that can accommodate 124.918.226 bcm of overburden and interburden. Based on the use of mining equipment, equipment investment of $ 26.870.826 and net income of the proceeds of $ 187.616.010. It can be concluded that the medium-term in the area of mining Townsite deserves to be mined and meet production targets set.

Pengendalian Waktu Efektif Bulldozer CAT D8R Rental Untuk Meminimalisasi Biaya Operasional Di PT Bukit Asam Tbk Unit Pelabuhan Tarahan Bandar Lampung Ronaldo Davinci; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 4, No 1 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. The D8R CAT Bulldozer is one type of mechanical device used for port operations through a rental system between PT Bukit Asam Tbk Tarahan Port Unit and PT Lematang. The high hours of the Bulldozer road will certainly have an impact on operational costs as well as the cost of the rental unit itself and the consumption of fuel oil. It is hoped that using the Overall Equipment Effectiveness (OEE) method in this case can be a solution to detect the main causes of the high hours of bulldozers. Determine the magnitude of each factor of the six major losses that affect the effectiveness of Bulldozer Performance, and analysis of the factors that are the top priority as a basis for improvement.Keywords: Effective Time, Overall Equipment Effectiveness (OEE), Six Big Losess, SPSS, and Bulldozer CAT D8R

PERENCANAAN PENAMBANGAN JANGKA MENENGAH (QUARTERLY PLAN) NIKEL LATERIT PADA PIT A, B DAN C PT. GANE PERMAI SENTOSA HARITA NICKEL PULAU OBI, MALUKU UTARA Annisa Intan Y.R; Dedi Yulhendra; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 1, No 2 (2014): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

PT. Gane Permai Sentosa (Nickel Harita Group) is one of the private mining companies that are conducting nickel laterite mining in Obi island, South Halmahera, North Maluku Province. PT. Gane Permai Sentosa is using open pit mine as its mining method. Of the block models that has been estimated by krigging method, there are 1,215,946 tons of mineable reserve ore which is the result of blending between high grade ore with 2.02% of Ni grade which has the portion 67% in total of mineable reserve and medium-grade ore with 1,60% Ni grade which has 33% in total of mineable reserve. That will be blanded and will reach 1.90% grade of Ni and the average stripping ratio is 1.57 and can be mined for 6 month. With the production target of ore is 200,000 tonnes in a month as like as buyer spesification that minimum Ni grade is 1.85% We can conclude that for the medium term mining in Pit A, B and C will be able to be mined and reach production targets set. Keywords: reserve calculation, production schedulling, ore analysis

Kajian Teknis dan Ekonomis Perancangan Design Kemajuan Penambangan Quarry Batukapur pada Bulan April–Agustus 2017 di Front III B–IV B Bukit Karang Putih PT. Semen Padang Fikriansyah Ersyad; Dedi Yulhendra; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 3 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

PT. Semen Padang plans to expand mining area, especially in the Front III B-IV B. The limestone production target was planned is 550,000 tons / month. Long-term production target planning for all mining areas in 2017 for limestone is 10,128,000 tons, or increase 12.56 % and silicastone is 1,100,000 tons, or increase 10% from 2016. Production realization achieved in 2016 was only achieved 78.3% for limestone and 71.7% for silicastone. Less optimal achievement of production targets in 2016 due to inappropriate sequence factors, and irregularities in excavation. Planning for limestone mining in Front III B-IV B is based on technical and economical assessmnet in terms of quality and quantity of deposit. In order to maintain the quality of the limestone, it is necessary to know the amount of reserves and the distribution of the quality of limestone in a block model estimated by the geostatistical approach, namely the krigging method. Planning quarry design’s starts from April to August 2017. Combination of loader - hauler that is used to transport limestone is Excavator Komatsu PC 1800-Dumptruck HD 785, while overburden removal use a combination of Excavator Komatsu PC 300-Dumptruck Hino FM260JD. From the design of the quarry in April - August 2017 it was found that in April the overburden stripping was 6,535.71 Bcm and 552,001.89 Tons of limestone, with mining operational costs of $ 160,243. In May the stripping of limestone was reached 569,286.38 Ton, with mining operation cost of $ 162,243. In June, overburden stripping was 5000 Bcm was carried out and 582,636.13 tons of limestone, with mining operating costs reach $ 136,950. In June, overburden stripping was carried out of 29,753 Bcm and 596,955.59 tons of limestone, with mining operating costs of $ 168,989. In August, overburden stripping of 47,000 Bcm was carried out and 579,374.91 Tons of limestone, with mining operating costs of $ 196,683.Keywords: Production, Mine Planning, Krigging Method, Design Quarry, Operating Cost

PERENCANAAN BIAYA DAN KEBUTUHAN ALAT MUAT DAN ANGKUT PADA LOKASI PENAMBANGAN AREA 242,3Ha BATU KAPUR PT.SEMEN PADANG SUMATERA BARAT Androly Andreas; Sumarya Sumarya; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 1, No 1 (2014): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

ABSTRAKPT. Semen Padang (Persero) merupakan salah satu perusahaan pertambangan yang berlokasi di Sumatera Barat. Pada saat ini penambangan dilakukan pada front IV tapi karena kadar silika pada front tersebut sudah menurun perusahaan mempunyai rencana melakukan penambangan pada area 242,3Ha yang belum pernah dilakukan penambangan sebelumnya. Penambangan di kuari bukit karang putih mengunakan kombinasi antara alat muat (Excavator Hitachi) dan alat angkut (Dump Truck Komatsu).Untuk mencapai target produksi yang ditetapkan perusahaan maka pada area 242,3Ha penambangan mengunakan kombinasi alat mekanis yang berupa Excavator dan Dump Truck dimana Excavator yang ada saat ini sebanyak 2 buah sedangkan Dump Truck yang dibutuhkan sebanyak 7 buah untuk shift I yang terdiri dari 4 buah Dump Truck berkapasitas 100 ton dan 3 buah yang berkapasitas 80 ton sedangkan untuk shift II mengunakan 2 buah Excavator dan 6 buah Dump truk yang terdiri dari 3 buah untuk yang berkapasitas 100 ton dan 3 buah untuk berkapsitas 80 ton.Secara teoritis kemampuan produksi yang dapat dihasilkan alat mekanis jika dilakukan penambangan pada area 242,3Ha dengan kondisi seperti saat ini adalah sebesar 33214,654 ton perhari sedangkan target produksi yang ditargetkan perusahaan adalah sebesar 30.000 ton perhari dengan demikian target produksi yang dihasilkan nanti akan tercapai. Biaya yang dibutuhkan jika dilakukan penambangan pada area area 242,3Ha ini untuk alat muat pada shift I adalah sebesar Rp 2668,377/ton, dan untuk alat angkut pada shift I adalah Rp 5841,278/ton sedangkan pada shift II biaya pemuatan sebesar Rp 2668,377/ton dan untuk biaya pengangkutan Rp 5476,955/ton.Kata Kunci: biaya, alat muat, alat angkut.

Co-Authors Abdullah, MT, Dr. Rijal Adinda Adinda Adree Octova Agus Susanto Aldo Mahyandra Aldo Mahyandra Andhini, Dhini Andree Octova Andres Melbaral Androly Andreas Annisa Intan Y.R Ansosry Ansosry Aulia Defriansyah Baron, Adhitya Benti Jul Sosantri Bianda F Aprilla Bimo Elang Putra Byma Bryanco Devit Aswandi Dhini Andhini Diah Wulandari Diki Saputra Elsa Rahma Afrila Fadel Rahman Febrianto Febrianto Febryanti Febryanti Fellya Septia Fauzi Feraldo Sandrio Fikriansyah Ersyad Firdaus Firdaus Fitratul Rahmi Fitri Desri Yeni Fitri Nadia Fitrya Monica Gamma Putra Harifan Prima Hastia Ulfa Heri Prabowo Icksan Lingga Pradana Indra Lesmana Putra Jeffry - Albadri Kiki Gusmaningsih Laju Boy Ardi Harahap M. Fadly M. Ravil Akbar Elfiantra Marchellevandra Gomis Marta Weri Mhd Zanil Mia Fazira Miftahul Jannah Arida Milia Putri Moudy Intan Fandini Muhammad Aditya Faisal Muhammad Al Fajri Tamsin Muhammad Fajar Rahman Muhammad Hazwafi Ardeva Muhammad Rafif Gusvi Rahardi Muhammad Rakha Aqiliyan Muhammad Rizky Mulya Gusman Murad Murad Nabilla Kansha Naldo, Exwil Nefa Rizki Dian NILA RAHMAD DEFITA Octova, Andree Pranata, Hendri Purwoko, Agus Putri Pasaribu Rachim, Velya RAHUL GONZALES Raimon Kopa Randa Ramadhan Reynaldi Ezra Reza Taufiqurrahman Rian Saputra Riandy Kurniawan Rico Fernandes Rihan Efendi Rijabul Mulia Rika Yastavia Riki Adha Riko Maiyudi Ronaldo Davinci Saldy, Tri Gamela Sugiono Sugiono Sumarya Sumarya Syamsul Arifin Syarifa Amalia Tri Yeli Marsa Velya Rachim Wiza Esti Ningrum Yoszi Mingsi Anaperta Yulia Minara

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