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All Journal Journals Mining Engineering : Bina Tambang Penelitian Pendidikan Journal of Degraded and Mining Lands Management SEMIRATA 2015 INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Teknologi Informasi dan Pendidikan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat SEMESTA: Journal of Science Education and Teaching Georest: Geoscience, Remote Sensing, and Technology
Adree Octova
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Physics Transportation Other

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Permetaan Zonasi Indeks Kerentanan Seismik pada Daerah Tambang CV. Bara Mitra Kencana, Kecamatan Talawi, Sawahlunto Lady Ayu Sapitri; Adree Octova
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.v6i5.115182

Abstract

Abstract CV. Bara Mitra Kencana is a company engaged in coal mining, the existence of mining pits changes intact rock into rock mass and the continuity of its strength is disrupted, many weak areas in the mining area are one of the factors for landslides on the mine slopes, and a cause of work accidents.To find out whether the area has a weak field or not, a zoning mapping study can be done by looking for a seismic vulnerability index using the HVSR (Harizontal to Vertical Spectral Ratio) method.The dominant frequency value is 0.615 Hz – 13,112 Hz. The amplification value in the CV Bara Mitra Kencana mining area is 1,558 – 4,417. Seismic vulnerability index 0.233 x 10-6 s6/cm – 31.723 x 10-6 s2/cm with low to high categories.Mapping of seismic susceptibility index zoning at BMK 1 point where there is a high value of 31.72 x 10-6s2/cm, BMK 2 point where the value obtained is low at 0.23 x 10-6s2/cm, BMK 5, BMK 9, BMK 10 also classified as vulnerable to damage, because the seismic vulnerability index value is also high, ranging from 11 x 10-6s2/cm – 13 x 10-6s2/cm, Point BMK 3, BMK 4, BMK 6, BMK 7, BMK 8, BMK 11, BMK 12 is relatively safe because the seismic vulnerability index value is 0.26 x 10-6s2/cm – 8.8 x 10-6s2/cm, Areas prone to damage have a high seismic vulnerability index value, high amplification value and low dominant frequency value Keywords: Maps, Vibration, Waves, and Seismic
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (853.056 KB) | DOI: 10.24036/bt.v2i1.5291

Abstract

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 Pengumpanan Crusher dan Analisis Regresi Multivariat Terhadap Waktu Kerja Untuk Meminimalisir Losstime Agar Tercapai Target Produksi 300.000 Ton pada Penambangan Batu Granit Di PT. Trimegah Perkasa Utama Ersila Maharani; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 4, No 4 (2019): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (720.553 KB) | DOI: 10.24036/bt.v4i4.106884

Abstract

Abstract. PT. Trimegah Perkasa Utama is one private company engaged in the contracting of granite mining. In the mining process, PT. Trimegah Perkasa Utama aims to produce 300,000 tons in a month. However, based on actual production data in January - March 2019 the production target has not been achieved. Based on the results of field observations, it was found that one of the factors which cause the production target has not to be achieved is the number of obstacles that occur in loading hauling equipment and primary crusher units. Therefore, the Overall Equipment Effectiveness method is used to optimize the crusher feed and the Multivariate Analysis method to get the optimum time of loss time. Based on the research results obtained the equation model of time production loading hauling activities, Nordberg primary crusher, and Jaques primary crusher are Y = -326,865 + 34.28567 X1 + 564.6184 X2 + 748.8142 X3. The feed value production by optimization with the OEE method is 404,607,805 tons and the equation model of the idle time and delay time for the production of granite from each unit of the primary crusher is Y = 10115,19 - 259.22 X1 - 296,443 X2. In Jaques and Y units = 7873,46 - 60,069 X1 - 283,198 X2 in Nordberg unitsKeywords:  Granit, Jaques Primary Crusher, Multivariate,  Nordberg Primary Crusher, Optimalisasi Produksi
Domain Geologi Material di Area Pit Limit Menggunakan Analisis Statistik Pada Tambang Quarry PT. Semen Padang, Sumatera Barat Helio Gina Febriandika; Adree Octova; Della Aulia Aidil
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.v6i5.115183

Abstract

At PT. Semen Padang mining activities carried out in an area of 206 Ha in the existing area. The remaining reserves at the existing location are estimated to be exhausted in September 2019, so PT. Semen Padang will expand its mining area to the Pit Limit and Tajarang areas. Before conducting mining activities in the Pit Limit area, it is necessary to know the geological domain of this material to find out the areas that will be mined. Geological domain is carried out using statistical analysis. Database information for the estimation of limestone, tuff, silica, soil and basalt resources in the Pit Limit area was obtained from exploration drilling activities derived from 20 drill hole data with depths ranging from 50 meters to 200 meters depth. Based on the lithology histogram in the pit limit area, we can see that the limestone content contained in the Pit Limit area is far more than other materials, so this area is economical for mining.
PEMBUATAN PROGRAM HITUNG PRODUKSI MENGGUNAKAN BAHASA PEMOGRAMAN VISUAL BASIC .NET UNTUK MENGEVALUASI PRODUKTIVITAS ALAT MUAT DAN ALAT ANGKUT PADA KEGIATAN PENAMBANGAN BATU GAMPING PT. SEMEN PADANG Ikhwan Idham; Sumarya Sumarya; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (955.942 KB) | DOI: 10.24036/bt.v3i1.9065

Abstract

Increased in cement demand for development has made PT. Semen Padang increased its cement production. Increased cement demand means increased demand for limestone as a base material for manufacturing cement. Based on data from PT. Semen Padang, the limestone mining production target in August 2016 was 718,000 tons, while the realization of the production 580,000 tons or about 81% of the production target. To determine the productivity of the loading and hauling equipment it is necessary to do some calculation phases. Up to this time, if the process of calculating the productivity of the equipement is done manually, it will take a long time and less practical. And it is expected that a program that can help with the productivity calculation process.Production calculation program is programmed using visual basic programming language. This program can be used to calculate the productivity of loading and hauling equipment. After the analysis and calculation done with the program, improving the productivity of the equipment must be done. To improve the productivity of the equipment, an improvement in the work efficiency of the equipment and the bucket fill factor excavator was made.Calculation results using the program, for the productivity of the loading equipment after the improvement the productivity of dump truck Komatsu HD 785 with Hitachi EX 2500-6 excavator is 721,179.27 tons /month. The calculation results using the program with the manual is not much different. The difference result of the calculation is caused by integrating the numbers behind the comma
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (578.225 KB) | DOI: 10.24036/bt.v3i4.102402

Abstract

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
Keserasian Alat Gali Muat dan Alat Angkut Dalam Meningkatkan Produktivitas Pengupasan Overburden Pada Pit Utara PT. Bara Prima Pratama Jobsite Batu Ampar, Kabupaten Indragiri Hilir, Provinsi Riau. Roges Tomara Mahesa; Adree Octova; Yoszi Mingsi Anaperta
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.v6i5.115144

Abstract

Abstract. In mining activities, production is an activity that produces minerals. In coal mining activities, there are two production operations carried out, namely overburden production and coal production, which to produce this production mechanical equipment is used which plays an important role in supporting the success of the production process. In the use of these mechanical tools, it is necessary to do precise calculations so that the capabilities of the tools can be used optimally and have a high level of efficiency to achieve production targets. PT. Bara Prima Pratama implements an open pit mining system with coal being mined. The mining method used is the Conventional Mining method, which is a mining method using digging and loading equipment and transportation equipment. The company is trying to meet its production targets with the aim of being able to meet domestic and export demands. In the overburden stripping activity, PT. Bara Prima Pratama uses a combination of mechanical equipment, namely a Excavator Doosan DX 500 LCA HD and Dump Truck Hino 500. For the compatibility of the work of the digging and loading equipment, a Match Factor value of 0.776 is obtained, which means that the digging-loading tool works less than 100% and the conveyance works 100% so that there is waiting time for the digging and loading equipment. After analyzing the Match Factor, the value is 1.03 so that the matching fleet calculation results are appropriate and the same. There is no waiting time for loading and unloading equipment or transportation equipment.
ESTIMASI CADANGAN INSITU MELALUI KEGIATAN INPIT DRILL PADA BUKIT EVEREST, CHEROKEE, DAN STRADA DI PT ANTAM (Persero) Tbk UBPN SULTRA Fathonie Yurnia H; Mulya Gusman; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 3, No 2 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (694.208 KB) | DOI: 10.24036/bt.v3i2.10100

Abstract

Penelitian ini membahas tentang pengoptimasian cadangan insitu nikel laterit pada Bukit Everest, Cherokee, dan Strada di PT ANTAM (Persero) Tbk UBPN SULTRA. Karena pada lokasi tersebut berdasarkan laporan penelitian terdahulu adanya perbedaan hasil estimasi cadangan berdasarkan klasifikasi kadar yaitu bijih dengan kadar Ni < 1.3 % tergolong pada kualitas waste, bijih dengan kadar Ni 1.3 -1.5 % tergolong kualitas limonit, bijih dengan kadar Ni 1.5 – 1.8 % tergolong kualitas Low Grade Saprolite Ore (LGSO), bijih dengan kadar Ni 1.8 – 2.0 % tergolong pada kualitas Hight Grade Saprolite Ore (HGSO), sedangkan untuk bijih dengan kadar Ni > 2.0 % akan mempertimbangkan kadar Fe dari bijih tersebut. Apabila Fe < 14 % maka tergolong kedalam HGSO dan jika Fe > 14 % maka tergolong LGSO dari kegiatan eksplorasi rinci dan inpit drill. Oleh karena itu perlu dilakukan pengkajian mengenai hal-hal yang menyebabkan perbedaan estimasi cadangan serta nilai ekonomis kegiatan inpit drill sehingga didapatkan benefit dari kegiatan inpit drill. Metode penelitian yang diterapkan adalah deskriptif kualitatif yang bersifat pembuktian dengan memadukan beberapa data yang meliputi kajian pustaka, data pengeboran, dan data analisis kadar serta nilai ekonomis dari kegiatan inpit drill. Berdasarkan hasil penelitian yang dilaksanakan dapat disimpulkan beberapa hal berikut. Pertama, Perbedaan yang signifikan terjadi pada kualitas LGSO dan HGSO karena jumlah cadangan yang memiliki nilai ekonomis dan dijadikan sebagai umpan pabrik yaitu HGSO dan LGSO pada kegiatan inpit drill lebih banyak dibandingkan pada kegiatan eksplorasi rinci.Kata Kunci: Cadangan, Eksplorasi Rinci, Inpit Drill, Nikel, Nilai ekonomis
OPTIMASI GEOMETRI PELEDAKAN UNTUK MENCAPAI TARGET FRAGMENTASI DAN DIGGABILITY DALAM PEMENUHAN TARGET PRODUKTIVITAS ORE DI PIT DURIAN BARAT DAN PIT SOUTH OSELA SITE BAKAN PT J RESOURCES BOLAANG MONGONDOW SULAWESI UTARA Milia Putri; Dedi Yulhendra; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 3, No 1 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1510.881 KB) | DOI: 10.24036/bt.v3i1.9183

Abstract

Pemberaian batuan merupakan salah satu tahapan yang sangat penting dalam operasipenambangan. Metode pemberaian batuan yang umum digunakan adalah peledakan yang bertujuanuntuk memberai batuan sesuai ukuran fragmentasi yang telah direncanakan. Keefektifan kegiatanpeledakan menjadi salah satu tolak ukur keberhasilan kegiatan pemuatan (loading material) yangsangat mempengaruhi ketercapaian target produktivitas penambangan. Penelitian ini bertujuanuntuk mengestimasi geometri peledakan optimum untuk meminimalisir persentase jumlah bouldersehingga kegiatan pemuatan (loading material) menjadi lebih efektif dan target produktivitastercapai. Studi kasus penelitian dilakukan pada 8 blok peledakan di Pit Durian Barat dan 8 blokpeledakan di Pit South Osela yang keduanya berada di PT J Resources Bolaang MongondowSulawesi Utara Indonesia. Data penelitian terdiri dari fragmentasi peledakan, digging time, cycletime, digging rate, dan produktivitas penambangan ore. Metode penelitian dilakukan denganestimasi geometri peledakan menurut teori R.L. Ash dan C.J. Konya, pemodelan statistik, serta ujitrial and error. Dari analisis data yang dilakukan, untuk mencapai target produktivitaspenambangan sebesar 700 bcm/jam maka persentase jumlah boulder adalah 3 %, digging time 7detik, cycle time 15 detik, dan digging rate 750 bcm/jam pada Pit Durian Barat, sementara padaPit South Osela persentase jumlah boulder 3 %, digging time 6 detik, cycle time 14 detik, dandigging rate 800 bcm/jam. Untuk meminimalisir persentase jumlah boulder maka perlu dilakukanrevisi geometri peledakan berdasarkan teori C.J. Konya dengan reduksi ukuran boulder sebesar4,26 s.d. 5,10 % dengan peningkatan produktivitas sebesar 141 s.d. 215 bcm/jam, dengan demikiantarget produktivitas ore dapat tercapai.
ANALISIS GROUND VIBRATION UNTUK MENDESAIN LERENG YANG STABIL PADA PENAMBANGAN BATU GAMPING CV TEKAD JAYA HALABAN KABUPATEN 50 KOTA SUMATERA BARAT Halimah Halimah; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (778.782 KB) | DOI: 10.24036/bt.v3i4.102303

Abstract

Abstract. Blasting activities can cause vibrations that disrupt the surrounding environment, one of which is slope. In the planning of slopes, the magnitude of vibration due to blasting is needed to design the stable slope. To determine the effect of blasting vibration as known as horizontal vibration acceleration (amax) on slope stability then measurements of blasting vibration were taken in 10 point surrounding the location of blasting. Based on the data obtained, the parameters of seismic wave that required are frequency, peak particle velocity (PPV) dan peak particle acceleration (PPA). However, internal factors such as the physical and mechanical properties of the rocks that make up the slope are also very needed. After processing the data, the predicted value of vibration at the point of slope is 0,01531 g and after slope evaluation using Bishop and Janbu methods, the impact of vibration on the slope is around 0,07 – 0,25. The final slope design parameters consist of a single slope with a height of 38 m and the angle of slope is 900. Safe limit of vibration blasting against the slope with trial and error test is 1,9 g. Keywords:  Blasting Vibration, Planning of Slope, The Parameters of Seismic Wave, Rock Tests
Co-Authors Abbil Raihan, Muhammad Abna Hidayati Admizal Nazki Aldri Frinaldi Amali Putra Andrian Eka Putra Annisa Intan Y.R Ardhi Jafrian Arif Nandi Rivai Bambang Heriyadi Byma Bryanco Calvin Maharza Chita Annisa Putri Cici Wulandari Dasman Lanin Dedi Yulhendra Della Aulia Aidil Diah Wulandari Dian Nur Ikhsan Doli Ali Fitri Ersila Maharani Fandi Aulia Syofyan Fathonie Yurnia H Feraldo Sandrio Fitri, Lira Zana Halimah Halimah Helio Gina Febriandika Humaira Sabrina Ikhwan Idham Ikhwan Pratama ira kusuma dewi Jordi Andika Putra Salim Lady Ayu Sapitri M Sahrudin M. Ilham Khalid Maiyudi, Riko Maiyudi Milia Putri Muhammad Irawan Mulya Gusman Murad Murad Pakhrur Razi Putra, Kyrie Eleison Rafky Maulana Rahardi, Muhammad Rafif Gusvi Rahmad Fajri Rahmahtul Fadlillah Rahmi, Ulfia Rahul Gonzales Raka Tubagus Indra Rani anggraini Rembrant, Rembrant Resi Hutriayu Resty Hardi Reza Taufiqurrahman Ria Novi Mayang Sari Ridho Yovanda Rido Muhammad Afif Riko Maiyudi Rio Anshari Roges Tomara Mahesa Roro Rasi Putra Rudy Anarta Rukia Pinda Sari Sari, Ceni Febi Kurnia Solly Aryza Sumarya Sumarya Umar, Genius Yola Andani Yoszi Mingsi Anaperta