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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

Author-ID : 2567726

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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Estimasi Sumberdaya Batubara Menggunakan Metode Penampang dan Geostatistik Pada Area DDU Blok Timur Site Sungai Cuka, Kecamatan Kintap, Kabupaten Tanah Laut, Provinsi Kalimantan Selatan Byma Bryanco; Dedi Yulhendra; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. PT. Britmindo is one of mining consultant company, and the centre office in Ragunan, South Jakarta. As aconsultant PT. Britmindo have a client is PT. Indoasia Cemerlang located in Sungai Cuka, Kintap, Region Tanah Laut, Province South Kalimantan. PT. Indoasia Cemerlang do exploration of coal in DDU Area East Block event have 27 bor hole. In this located didn’t do estimation coal of resources. And after do that can be know totality of tonnges and modle. Resources 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. The estimation result by using kriging method will configure modl from sediment and the total tonnage of coal.In located of research have 1 seam and that is seam A with split is A, A1, and A2. And total Estimation in cross section method in seam A is 60.979 tons coal tonnage, seam A1 is 21.236 tons coal tonnage, and seam A2 is 37.159 tons coal tonnage. With overburden from topo-top seam A is 77.103 bcm/tonne and interburden seam A2 is 48.414 bcm/tonne. Meanwhile in ordinary kriging method has a total tonnages in seam A is 499.590 tons coal tonnage, seam A1 is 244.530 tons coal tonnage, and seam A2 is 204.750 tons coal tonnage. And from this calculation we have length, volume and tonnages of coal.Keywords: coal, cross section, ordinary kriging, block model, resources

Analisis Statistik Untuk Mendapatkan Waktu Losstime Optimal Peralatan Tambang Untuk Memenuhi Target Produksi Pengupasan Overburden di Pit 3 Timur Satuan Kerja Penambangan Elektrifikasi Shovel and Truck PT. Bukit Asam Tbk Rahmad Fajri; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 5, No 1 (2020): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Abstract. Based on the overburden stripping production data at Pit 3 East, Electrification Mining Work Unit Shovel and Truck of PT. Bukit Asam Tbk. June 2019 for 4 mining fleet, are around 994.792,50 Bcm. From the actual production above, it is known that the overburden stripping production target for 4 mining fleet is 1.300.000 Bcm, so it can be concluded that the overburden stripping production target in June 2019 is not reached. Based on the data from mining equipment working hours, a percentage of consecutive utilization of available working time of the EU (Effective Utilization) for 4 mining fleet is 26.28%; 58.03%; 57.21% and 60.38%. From these problems, the percentage of utilization of available working time EU (Effective Utilization) cannot be utilized optimally. From the problems above, it is necessary to analyze the optimal losstime to fulfill the overburden stripping production target. As for, the analysis that will be used in this study is multiple linear regression analysis which is using the least squared method in estimating the coefficient of multiple linear regression. The purpose of the analysis is to obtain an optimal losstime mathematical model in fulfilling the overburden stripping production target in June 2019.Keywords: Produksi, Losstime, Waktu Optimal, Analisis Regresi Linear Berganda, Least Squared

Upaya Peningkatan Kemampuan Guru Fisika SMK Sumatera Barat dalam Merancang Media Pembelajaran Non-Cetak Terintegrasi Pendekatan Saintifik Rio Anshari; Akmam Akmam; Adree Octova
SEMESTA: Journal of Science Education and Teaching Vol 2 No 1 (2019): Science Education Journal
Publisher : Pendidikan IPA, FMIPA, UNP

Tenaga pendidik yang selanjutnya kita sebut guru, pada hakikatnya dituntut untuk memiliki kompetensi yang meliputi empat kompetensi yaitu kompetensi pedagogik, kompetensi profesional, kompetensi kepribadian dan kompetensi sosial. Pada kompetensi profesional, guru diharuskan menguasai bidang yang diasuhnya dan dapat melakukan perbaikan terus menerus sebagai bentuk usaha peningkatan kompetensinya. Salah satu usahanya adalah dengan melakukan perbaikan secara berkesinambungan untuk pribadi guru secara mandiri serta dalam kegiatan pembelajaran di dalam kelas untuk terus dapat meningkatkan kebermaknaan proses pembelajaran yang dilaksanakan. Salah satu aspek penting yang harus diperhatikan oleh guru adalah penggunaan media pembelajaran yang layak (valid), tepat, sederhana dan reliabel untuk mengkomunikasikan konsep-konsep keilmuan yang diajarkannya. Fakta di lapangan menunjukkan pada mitra kerjasama dari kegiatan ini masih banyak terdapat ketidaktepatan guru dalam memilih dan penggunaan media dalam melaksanakan proses pembelajaran. Fokus workshop yang dilaksanakan yaitu pada media pembelajaran non-cetak jenis media pembelajaran berbasiskan animasi dan simulasi. Data awal dari subjek yang diteliti yaitu Guru Fisika SMK Sumatera Barat memperlihatkan 77% dari subjek masih belum pernah membuat media pembelajaran berbentuk animasi dan simulasi. Sebesar 91% dari subjek belum pernah memperoleh pelatihan pembuatan media pembelajaran berbentuk animasi dan simulasi. Subjek belum mengetahui aturan dalam pengembangan media pembelajaran (77%) maupun belum dapat menerapkan aturan pengembangan media pembelajaran (83%). Namun begitu, sebagian besar subjek sudah mengetahui tentang pendekatan saintifik (91%) dan sudah pernah mendapatkan pelatihan terkait pendekatan saintifik. Terlepas dari itu, ternyata 80% dari subjek belum pernah merancang/membuat media pembelajaran berbasiskan pendekatan saintifik. Dari kondisi tersebut terlihat perlunya diberikan workshop bagi subjek agar pada akhirnya dapat meningkatkan kompetensi subjek, terkhususnya kompetensi professional. Setelah diberikan pembekalan, pendampingan dan pembinaan terhadap subjek yang diteliti, terlihat perubahan yang cukup signifikan. Sebanyak 79% dari subjek yang diteliti telah dapat mengatasi kendala yang dihadapi terkait pengembangan media berbasis animasi dan simulasi, sebesar 85% dari subjek menilai kegiatan workshop telah dapat meningkatkan kreativitas guru dalam menghasilkan karya serta sebesar 84% dari subjek yang diteliti merasa lebih percaya diri untuk berkesinambungan dalam menghasilkan karya.

EVALUASI PRODUKTIVITAS ALAT GALI MUAT MENGGUNAKAN METODE OVERALL EQUIPMENT EFFECTIVENESS PADA PIT UTARA PT. BARA PRIMA PRATAMA, JOBSITE BATU AMPAR Adree Octova; Roges Tomara Mahesa
Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Vol 21, No 2 (2021): JURNAL SAINS DAN TEKNOLOGI
Publisher : Sekolah Tinggi Teknologi Industri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36275/stsp.v21i2.418

PT. Bara Prima Pratama merupakan perusahaan pertambangan batubara yang terletak di Provinsi Riau. Pada kegiatan penambangannya alat gali-muat utama yang digunakan pada Pit Utara adalah dua unit Excavator Doosan DX 500 LCA HD dan satu unit Excavator Doosan DX 300 LCA HD. PT. Bara Prima Pratama Jobsite Batu Ampar menetapkan target produksi pengupasan overburden di pit utara sebesar 310.000 bcm per bulan, sedangkan realisasi produksi pengupasan overburden di pit utara pada bulan April 2021 sebesar 165.205 bcm. Dari data realisasi tersebut dapat disimpulkan bahwa produksi pengupasan overburden tidak mencapai target yang telah ditetapkan. Tujuan dari penelitian ini adalah agar target produksi pengupasan overburden dapat berjalan secara optimal dengan melakukan analisis produktivitas lebih lanjut mengenai jam kerja alat, mencari penyebab dan tindakan yang harus dilakukan untuk mencapai target serta melakukan perbaikan untuk mengoptimalkan kinerja alat gali muat. Salah satu metode yang tepat digunakan dalam mengatasi permasalahannya adalah metode Overall Equipment Effectiveness yang merupakan alat pengukuran performa proses produksi yang dapat mengukur bermacam-macam losses yang terjadi dan mengidentifikasi potensi improvement, dengan menggunakan metode ini dapat diketahui area yang perlu ditingkatkan untuk mencapai target produksi. Kemudian digunakan metode fishbone dengan mencari sebab akibat yang menyebabkan produksi pengupasan overburden tidak tercapai, kemudian dilakukan upaya perbaikan dari loss time dengan penerapan teknik 5W+1H. Setelah dilakukan analisis dan upaya perbaikan didapatkan total produksi pengupasan overburden sebesar 382.227,06 bcm yang berarti telah mencapai target bahkan melebihi target produksi sebesar 310.000 bcm. Akan tetapi nilai OEE masih < 85% dari nilai OEE standar kelas dunia yaitu ≥ 85% dan masih ada ruang untuk dilakukan improvement.

Optimalisasi Biaya Produksi Menggunakan Metode Liniear Programming Dalam Rangka Pengupasan Overburden di KUD Sinamar Sakato, Sinamar, Kabupaten Dharmasraya, Provinsi Sumatera Barat M Sahrudin; Rudy Anarta; Adree Octova; Admizal Nazki
Journals Mining Engineering : Bina Tambang Vol 7, No 3 (2022): 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.v7i3.120576

The problem faced by KUD Sinamar Sakato at this time is the occurrence of Sliding Back Filling material in July 2021 from PIT 1 IUP PT SLN which borders KUD Sinamar Sakato. Then in July 2022, Fleet Loading Point Overbuden Removal was added which was originally 4 Fleet to 5 Fleet, of which 3 Fleet only focuses on the sliding material back filling area which is still happening today. Which is where the remaining 2 Fleet focuses on the Front Loading Coal area, and also not achieving the overburden production target in the Pit Pyramid in June-July 2022 of 150,000 BCM while the actual is 141,500 BCM/month. This research was conducted to calculate and analyze the optimal number of digging and loading equipment according to the production target and to get the minimum loading and hauling costs. The optimization method used is the match factor method and the linear programming method using POM Software for Windows, Lingo. and manual calculations using the simplex method. Based on calculations using POM for Windows software, lingo and Linear Programming Simplex Method, it is obtained that the number of dump trucks planned is 12 units, which previously was 15 units. then the optimal production obtained for stripping overburden material is 156.459 BCM/month from 150,000 BCM/hour with a production cost of 0.85 USD/BCM from 1.11 USD/BCM.

Pemetaan Sebaran Pasir Besi di Pantai Sunur, Kec. Pariaman Selatan, Kota Pariaman, Sumatera Barat. Rafky Maulana; Adree Octova
Bina Tambang Vol 8, No 1 (2023): Journals Mining Engineering: Jurnal Bina Tambang
Publisher : Jurusan Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v8i1.122162

South Pariaman Subdistrict, Pariaman City has abundant iron sand mineral resources. However, the use of iron sand in the area is still less than optimal because the local government and local communities do not have data on iron sand exploration in the area. Mineral resources are mineral deposits that are expected to be utilized in real terms. Mining resources with certain geological beliefs can change into reserves after a mine feasibility assessment is carried out and meets the criteria. The purpose of this study is to determine the distribution of iron sand in the study area, the value of the percentage of magnetism, the percentage of magnetic mineral value. There are 21 borehole points with a depth of 0-2 m. From this research, several results were obtained, including from the borehole lithology process, it was known that the material contained varied from medium sand with a size of 0.25-0.55mm and fine sand with a size of 0.125-0.25mm. After preparing the sample, the largest percentage of magnetism (MD) was obtained at point 17 of 26.36% and the smallest percentage at point 20 of 6.04%. The largest percentage of magnetic minerals (MM) at point 17 was obtained at point 17 at 30.85% and the smallest percentage at point 20 was 7.61%. From the magnetic percentage value and the percentage of magnetic mineral value, a magnetic percentage value distribution map and magnetic mineral distribution map were made using the Inverse Distance Weighted (IDW) method which shows that the value of the distribution of iron sand in the part leading to the ocean is greater than in other areas.

Produktivitas Mosher II Penambangan Silika Tambang Kuari PT Semen Padang Chita Annisa Putri; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): 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.v8i1.122195

In the Industrial Field Practices that have been carried out at PT Semen Padang, the author has an interest in the disturbances that occur in the Mobile crusher. The Mobile Crusher (Mosher II) is a silica processing tool which has the function of separating silica material from other materials such as tuff and basalt to further refine the silica material so that it meets the requirements for distribution to factories. During its implementation in the field, problems were encountered related to the crushing of silica materials, including damage to the chain feeder and a clogged chute, so that the operation of Mosher II had to be temporarily stopped. The obstacles encountered will affect the productivity of Mosher II and the amount of efficient working time. From Industrial Field Practice Activities in January 2018 the productivity target of Mosher II for silica mining is 900 tons/hour. The actual data obtained in the field for the productivity of Mosher II as a silica processing tool did not reach the desired target of 837.82 tons/hour. For the Mosher II operating time obtained 89.167 hours. And the efficiency of Mosher II is 43.96%

Development Mine Scheduling Concept in Making Pit Design Dedi Yulhendra; Feraldo Sandrio; Adree Octova
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 5 No 2 (2023): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Planning a modern open pit mine requires a computer model of the resources and reserves to be mined, both block and grid models. With current technological developments and has entered almost all sectors including the mining sector, as for computer program packages (software) used by the mining industry, namely Microsoft excel, Mincom minescap and others. An evaluation and analysis system of mine plans/ mine schedules is necessary to make predictions of mining operations that will be carried out and can be used to find the cause of deviation or design deviations. There are several weaknesses in making scheduling manually, so scheduling is done using SPRY which is very helpful in the scheduling process.

Kajian Teknis Produktivitas Belt Conveyor Jalur 7.1 Dalam Pengiriman Limestone Ke Storage Indarung VI pada PT. Semen Padang, Sumatera Barat Jordi Andika Putra Salim; Yoszi Mingsi Anaperta; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): 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.v8i2.123654

PT Semen Padang is the oldest company in Indonesia which was founded in 1910. The basic ingredients for making cement are 81% Limestone, 9% Silica, 8.5% Clay, 1% Iron Sand and 0.5% Gypsum. PT Semen Padang conducts Silica and Limestone mining business in Bukit Karang Putih, Indarung, Lubuk Kilangan District, Padang City. In mining at PT Semen Padang there is a conveying activity in which in this activity the transportation of material that has been crushed is transported to storage. There are many types of storage for Padang Cement, starting from Indarung II, III, IV, V and VI. In conveying activities at Semen Padang there are 2 lines, namely the old line and the new line which is called the longbelt. At PT Semen Padang, belt conveyors come in a variety of sizes, and depending on the route taken for delivery, the capacity of each belt for the delivery of raw materials varies. As a result, the minimum production capacity will determine the belt conveyor's production capacity. In the long term of five years, PT Semen Padang intends to expand its output objective to 12,300 tons in 2021. Longbelt delivery lines start from 6A1J03-6A1J04-6A1J05-6A1J06- 6A1J07-6A1J08-6A1J10 to storage indarung VI.

Uji Kadar Cassiterite pada Pasir Sisa Hasil Pengolahan di Tambang Kecil Perusahaan 2.6 Air Gemuruh PT Timah Tbk Humaira Sabrina; Adree Octova
Journals Mining Engineering : Bina Tambang Vol 10, No 1 (2025): Journals Mining Engineering: Bina Tambang (On Progress)
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i3.130677

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 Baron, Adhitya 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 Jenni, Nadiyatul Jordi Andika Putra Salim Lady Ayu Sapitri M Sahrudin M. Ilham Khalid Maiyudi, Riko Maiyudi Milia Putri Muhammad Irawan Mulya Gusman Murad Murad Murad, Murad Naldo, Exwil 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

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