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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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PERBANDINGAN ESTIMASI SUMBERDAYA BATUBARA MENGGUNAKAN METODE ORDINARY KRIGING DAN METODE CROSS SECTION DI PT. NAN RIANG JAMBI Reza Taufiqurrahman; 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 Nan Riang is one of mining factory which located in Muara Tembesi Subdisctrict, Batanghari Regency, Jambi Province. At this time, PT Nan Riang is exploring coals in which located in Ampelu Village approximately is about 100 hectares, 43 drilling sites. Meanwhile, resource estimation of coals have never been proceed in this area, even though resource estimation is one of important things to do before mining processing. Therefore, we can find out the number of tonnages and sediment models by using resource estimation. Resource estimation is using two methods there are ordinary kriging method and cross section method. Ordinary kriging method used if the thickness is unknown, and then to estimate the thickness number from an unknown block vertically or horizontally. So that it will obtain a precipitate in the form of block models in three-dimensional models. After that process, we calculate the volume to get estimation result from coal source. Meanwhile by using cross section method it will count the volume from each slice which has been made in same direction due to coal seam direction. After we got the results from these both methods and then we are comparing and analyzing in order to get the best result, so we can use that result for main reference in carrying out mining activities. The estimation result by using kriging method will configure model from sediment and the total tonnage of coal. The total tonnage in the research area was 3.237.000 million tonnes, with overburden 15.060.000 bcm. From these calculations we got stripping ratio 4,56 bcm/tonne. We got the estimation result by using cross section method 2.661.647 tons coal tonnage, with overburden 14.459.679 bcm. From the calculation also we got stripping ratio 5,43 bcm/tonne. Because there is a difference from these calculations so we use calculation which has the smallest stripping ratio for using to calculate the production plan

OPTIMALISASI PERALATAN TAMBANG DENGAN METODA OVERALL EQUIPMENT EFFECTIVENESS (OEE) DI PIT 1 PENAMBANGAN BATUBARA BANKO BARAT PT BUKIT ASAM (PERSERO) TBK TANJUNG ENIM SUMATERA SELATAN Benti Jul Sosantri; Dedi Yulhendra; Heri Prabowo
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Batubara merupakan salah satu sumber energi yang sangat potensial dalampemanfaatannya. Batubara banyak dimanfaatkan untuk berbagai keperluanproduksi mulai dari industri kecil hingga besar dan sebagian besar batubara diIndonesia telah diekspor hampir ke seluruh dunia antara lain ke negara-negaraAsia dan Eropa. Salah satu tambang batubara yang ada di Indonesia yaitu PTBukit Asam (Persero) Tbk.Proses produksi batubara PT Bukit Asam tepatnya pada Pit 1 Banko Baratmenggunakan alat gali muat excavator Komatsu PC 400 LC serta alat angkutdump truck Scania P360 dengan tujuan untuk dapat meningkatkan hasil produksiyang maksimal secara konsisten, tetapi kondisi aktual dilapangan tidaktercapainya target produksi yang telah ditetapkan setiap bulannya karenadisebabkan oleh beberapa faktor seperti manusia, lingkungan, peralatan, dansistem, dengan demikian perlu dilakukannya peningkatan produksi denganmelakukan perbaikan terhadap beberapa faktor tersebut. Salah satu metoda yangbisa digunakan adalah metoda Overall Equipment Effectiveness (OEE).Overall Equipment Effectiveness adalah metoda pengukuran efektivitaspenggunaan suatu peralatan. OEE dikenal sebagai salah satu aplikasi programtotal productive maintenance kemampuan mengidentifikasi secara jelas akarpermasalahan dan faktor penyebabnya sehingga membuat usaha perbaikanmenjadi terfokus merupakan faktor utama metode ini. Metode ini diaplikasikansecara menyeluruh oleh banyak perusahaan di dunia. Pada penelitian kali iniperhitungan yang dilakukan adalah menghitung produktivitas tanpa metoda OEEselanjutnya dengan metoda OEE. Objek penelitian adalah alat gali muat excavatorKomatsu PC 400 LC dan alat angkut dump truck Scania P360. Dari hasilperhitungan diperoleh nilai OEE masing-masing peralatan masih < 85% belummencapai nilai OEE kelas dunia >85%, dapat disimpulkan bahwa keadaanperalatan kurang baik. Sebaiknya dilakukan perbaikan terhadap waktu standbydan breakdown alat.

RANCANGAN PIT MUARA TIGA BESAR SELATAN BULAN JUNI TAHUN 2015 UNIT PENAMBANGAN TANJUNG ENIM PT BUKIT ASAM (PERSERO) TBK SUMATERA SELATAN Riandy Kurniawan; Dedi Yulhendra; Heri Prabowo
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 an Indonesia-based company primarily engaged in coal mining industry. Methods used in open pit such as conventional and continuous mining. This conventional method is conducted by using backhoe and dump truck while for continuous mining used Bucket Wheel Excavator (BWE) and Conveyor. In January 2015, Tambang Muara Tiga Besar Selatan used conventional method such as backhoe and truck. In an effort to increase coal recovery, it is necessary to do broadening area in Tambang Muara Tiga Besar Selatan in order to get more company’s profit. PT Bukit Asam (Persero) Tbk therefore plans to widen Tambang Muara Tiga Besar area for short term in June 2015. This research is conducted to make open pit design, calculate volume of burden and coal, disposal design, and also design mine haulage roads. Based on the result of analysis and calculation that has been done, elevation of pit design is amount of 62 mdpl to 0 mdpl. The total volume of burden is 1.500.000 BCM and tonnage of coal is 375.000 tons derived. The stripping ratio value is 4:1. The disposal area consist of two sections including first priority and second priority. The distance between mining front with disposal area is 1,97 Km. The width of haulage roads for two strips which appropriate with The American Association of State Highway and Transportation Officials (AASHTO) is 30 meters, including trench and dike.

Analisis Rock Factor Dan Pengaruh Powder Factor Terhadap Fragmentasi Pada Batuan Limestone Di Bukit Karang Putih Pt. Semen Padang (Persero) Harifan Prima; Dedi Yulhendra; Rijal Abdullah
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

This final project is based on the partially fragmentation which the boulders blasting results more than 80cms that intervene the crusher’s performance. The purpose of this Final Project is to get the exact value of powder factor; in order to attain the value of fragmentation up to 80 with optimally hold on 10%.The methodology problem that used is finding the value of rock factor by using Monte Carlo simulation and calculate the effect of powder factor on fragmentation with linear regression.The result of this final project is attained the value of rock factor 5.01 by using Monte Carlo simulation and the relationship between powder factor with the fragmentation is 72% with equation Y = -102,89X + 50,086. Based on its calculation, to attain the maximum result of fragmentation holding up to 10%, therefore the exact value of powder factor is 0,389.

Kajian Geometri Peledakan untuk Menapatkan Fragmentasi yang Optimal Pada Penambangan Batu Andesite PT. Koto Alam Sejahtera, Kabupaten 50 Kota Provinsi Sumatera Barat Mia Fazira; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Andesite Stone Mining at PT. Koto Alam Sejahtera with an open mining system using the Quarry mining method. The percentage of boulder-sized blasting fragmentation produced currently in the field is ± 35% as a result the diggability of the loading and unloading equipment is not maximal and the planned productivity of the loading and unloading equipment planned by the company at 100 bcm / hour is not achieved. This study aims to design a new blasting geometry to obtain optimal fragmentation results so that loading activities are effective and productivity targets are achieved. The research method was carried out by giving recommendations on blasting geometry based on R.L.'s theory. Ash and C.J. Konya and carried out the application of one of the blasting geometry designs in the field so that the optimum blasting geometry design from one of the blasting geometry designs can be applied in the future for the company. Basic results of field application to one of the blasting geometry design proposals are: burden: 2 m, space: 2 m, stemming: 1,4 m, subdrilling: 0,6 m, level height: 6 m, depth of blast hole 6,5 m, powder colomn: 5,1 m, and powder factor: 0,68 kg / m3 where the boulder size fragmentation resulting from the desktop split software analysis is 0%. The digging time produced is 9,23 seconds, the bucket fill factor is 60%, and the productivity of the digging tool is 108,54 bcm / hour.Keywords: Blasting Geometry, Blasting Result Fragmentation, Digging Time, Bucket Fill Factor, Productivity of Digging Tools

Optimalisasi Kinerja Limestone Crusher IIIA (LSC IIIA) Dengan Metode Overall Equipment Effectiveness (OEE) Untuk Memenuhi Target Produksi Limestone Di PT. Semen Padang Kecamatan Lubuk Kilangan, Padang, Sumatera Barat Nefa Rizki Dian; 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. Semen Padang uses the open-pit mining method, namely quarry mining is a mining method that is carried out by extracting industiral or industrial mineral deposits. Mining meterial that has been mined will be crushed according to size through the crusher tool. The crusher tool used is a hammer crusher. Each crusher has a capacity of 1300 tons / hou on LSC II, 1500 tons / hour and 1700 tons / hour for LSC IIIA and LSC IIIB, and 2200 tons / hour for LSC IV. This research uses the overall equipment effectiveness method, because overall equipment effectiveness aims to measure whether the equipment is working normally. Overall equipment effectiveness world class standard is 85% with availability standard value 90%, perfomance rate 95%, and quality rate value 99.9%. the Overall equipment effectiveness value on the crusher tool is still very low at 45.216%.So, it needs a decrease in the breakdown value of 59.146% or 1 hours per day, from 2.45 hours per day and standby at 76.209% or to 0,67 hours per day from 2.82 hours per day. So that the value of overall equipment effectiveness increase at a fair rate of 60,089%.The point is that the crusher woks properly. Keywords: Crusher, Overall Equipment Effectiveness, LSC, Hours per day, Mining

Perancangan Program Aplikasi Geometri Peledakan Tambang Terbuka Berbasis Mobile Menggunakan Bahasa Pemrograman Android Studio Reynaldi Ezra; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 5, No 2 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. At this time Mining Industrial have entered the era where the Industrial Revolution 4.0. Certainly we have to following to apply the concept of automation carried out by machines without the need for human power in its application. It is needed in the industry for saving time, energy and cost efficiency.Especially in the implementation of blasting, we certainly need high accuracy and time efficiency to calculate very complicated geometries if manual calculations and certainly have an important role in the success of blasting to achieve the target blasting Fragmentation.To support technological advances in the Industrial Revolution Era 4.0, especially in the Blasting tecnique so that it is easy to calculate the blasting geometry and fragmentation produced, in this research, a Mobile-based Geometry and Fragmentation Blast application is made using the Android Studio, where almost everyone currently has Android Smartphone technology.The making of this application program uses 2 geometries namely R.L.Ash and C.J.Konya where both methods are often used as a basis for calculating blasting geometry. In the application trial phase of simulation data and compared with manual calculations, the program runs well and also the percentage of errors is very low when matched with manual calculations which is only 1,38%.Keywords: Blasting, Geometry, Fragmentation, Application, Android

Analisis Prediksi Fragmentasi Peledakan Tambang Terbuka dengan Menggunakan Model Rock Engineering System (RES) dan Optimasi Geometri Peledakan untuk Mencapai Target Produktivitas Alat Gali Muat pada Kegiatan Pembongkaran Tanah Penutup (Overburden) di PT Kalimantan Prima Persada Job Site BDMA Kalimantan Uta Aldo Mahyandra; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 5, No 4 (2020): 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.v5i4.109476

Abstract. The blasting process will produce rocks fragmentation. Thus, there is the possibility of risk of fragmentation, such as boulder size, loading process, and productivity of the equipment cannot be achieved. The Rock Engineering System (RES) is a predictive model for blasting rock fragmentation. This study uses 10 effective parameters that affect rock fragmentation. The data that has been collected is as much as 30 blasting, carried out at PT KPP Job Site BDMA, North Kalimantan. The prediction of fragmentation in this study also uses the Kuz Ram method and a modification from Cunningham (2005) as comparison data. To validate the method that has been used, the correlation coefficient (R2) and the Root Mean Square Error (RMSE) will be analyzed between the actual measurements using split desktop software and the prediction method used. Between the RES model, the Kuz Ram method, and Cunningham method, the R2 value is obtained with a very strong relationship, are 0.97 in area 1 and 0.88 in area 2, and a low RMSE value are 24.31 in area 1 and 10.78 in area 2 using the RES model. So, based on this, the writer can make a blasting geometry to achieve productivity from the 2 theories used (R.L Ash and C.J Konya). Finally, geometries of R.L Ash is a best choice.Keywords : Rock Engineering System, Productivity, Statistic Analisys, R.L Ash, C.J. Konya

APLIKASI METODE GEOLISTRIK DALAM PENENTUAN REMBESAN LIMBAH CAIR STUDI KASUS TPA SAMPAH PASAMAN BARAT Yoszi Mingsi Anaperta; Adree Octova; Dedi Yulhendra
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

TPA Sampah Muaro Kiawai berada ditengah-tengah perkebunan sawit. Untuk mengetahui arah rembesan lindi yang diakibatkan oleh cairan sampah yang berasal di TPA Sampah Muaro Kiawi maka dilakukan pengambilan data geolistrik dengan metode dipole dipole. Diharapkan dari hasil geolistrik tersebut diperoleh gambaran arah aliran lindi. Selain itu diharapkan juga dapat diketahui kualitas air sungai yang berada di dekat TPA Sampah. Dari pengambilan data yang telah dilakukan maka diperoleh Panjang Lintasan 1 dari arah Barat ke Timur adalah 48 m dengan spasi elektroda 1 m, data yang diperoleh pada Lintasan 1 berjumlah 609 data. Panjang Lintasan 2 dari arah Barat ke Timur yaitu 48 m dengan spasi elektroda 1 m, data yang diperoleh pada Lintasan 2 yaitu 609 data. Panjang Lintasan 3 dari arah Barat ke Timur yaitu 48 m dengan spasi elektroda 1 m,data pada Lintasan 3 yaitu 609 data. Panjang Lintasan 4 dari arah Barat Laut ke Tenggara yaitu 48 m dengan spasi elektroda 1 m, data pada Lintasan 4 yaitu 609 data. Dari hasil interprestasi lapisan berwarna biru hingga hijau muda diestimasi sebagai sebaran air lindi dengan rentangan tahanan jenis di bawah 10 Ωm ditemukan pada kedalam 1 - 2 meter dari permukaan tanah. Arah rembesan air lindi adalah menuju utara searah dengan arah aliran kolam lindi dan diperkiran sudah mencemari air yang berada di anak sungai. Dilihat dari hasil penampang lintasan penelitian yang berdekatan dengan anak sungai, menunjukkan adanya indikasi pencemaran lindi Kata Kunci: TPAS Ampang Muaro Kiawai, metode geolistrik konfigurasi dipole dipole

Pemodelan Fragmentasi Hasil Peledakan Batu Andesit Di PT. Dempo Bangun Mitra Pangkalan Koto Baru Kabupaten 50 Kota Provinsi Sumatera Barat NILA RAHMAD DEFITA; Dedi Yulhendra 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.v6i3.112510

Rock breaking is one of the most important stages in mining operations. The commonly used method of rock breaking is blasting which aims to provide rocks according to the size of fragmentation that has been planned. The effectiveness blasting activities is one of the measurements success of loading activities which greatly affect the achievement of mining productivity targets. To produce good fragmentation, many things affect the blasting geometry, one of the things that can be controlled. To determine the level of fragmentation resulting from blasting, split desktop software can be used. This study aims to obtain a fragmentation modeling by predicting the fragmentation of blasting products at PT Dempo Bangun Mitra. The prediction of fragmentation in this study uses the Kuz-Ram model method and the Kuznetzov-Cunningham-Ouchterlony (KCO) model. To validate the method used, the correlation coefficient (R²) and Root Mean Square Error (RMSE) will be analyzed between actual measurements using split desktop software and the prediction method used. This study also evaluates the blasting geometry using R.L.Ash theory. Based on the data analysis carried out, the percentage of the calculation of actual blasting fragmentation results is 74.95% with a boulder percentage of 25.05%. Meanwhile, the results of the analysis of the fragmentation prediction of the Kuz-Ram model were 96.94% and the results of the analysis from the KCO model were 72.71%. To reduce the amount of boulder percentage, it is necessary to evaluate the blasting geometry based on the R.L.Ash theory by using the KCO model so that the boulder percentage is 0.05%, thus the number of boulders is less.

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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