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All Journal APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Journal of Degraded and Mining Lands Management Jurnal Chemurgy INDONESIAN MINING PROFESSIONALS JOURNAL Jurnal Sosial dan Teknologi Action Research Literate (ARL) Jurnal Locus Penelitian dan Pengabdian Educational Building: Jurnal Pendidikan Teknik Bangunan dan Sipil Journal Transformation of Mandalika Journal of Comprehensive Science MINERAL Nusantara Civil Engineering Journal INTAN Jurnal Penelitian Tambang Jurnal Sosial dan Sains Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Teknik Pertambangan (JTP) Jurnal Pertambangan dan Lingkungan Jurnal Inovasi Global JURNAL TEKNOLOGI MINERAL FT UNMUL
Revia Oktaviani
Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Mulawarman
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Journal : MINERAL

 1 
Studi Efek Skala pada Uji Kuat Tekan Uniaksial Terhadap Batupasir Pada Formasi Balikpapan Daerah Samarinda Utara, Provinsi Kalimantan Timur Milda Milda; Tommy Trides; Harjuni Hasan; Revia Oktaviani; Agus Winarno
MINERAL Vol 7 No 2 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i2.3352

Abstract

Scale effect testing on rocks is carried out with the aim of knowing the strength of a rock based on different dimensions. This test was carried out using a uniaxial compressive strength test and also testing the physical properties of rocks. In the rock compressive strength test used 5 dimensions of rock samples with a H/W ratio of which are 4.5/3, 6/3, 7.5/3 for dimensions of 3 cm, 5.25/3.5, 7 /3.5, 8.75/3.5 for dimensions 3.5 cm, 6/4, 8/4, 10/4, for dimensions 4 cm, 6.75/4.5, 9/4.5, 11.25/4,5 cm for the 4.5 cm dimension and for the 5 cm dimension, namely 7.5/5, 10/5 and 12.5/5. Physical properties testing is carried out to determine the porosity value in the test rock samples, which will then be compared between the porosity values ​​and the results of the compressive strength test of rock samples. Physical properties testing carried out obtained the average value of rock porosity, namely 22.562%, 22.122%, 20.454%, 21.227%, and 22.413%. In the scale effect test, it is known that the higher the rock sample, the smaller the value of the rock strength can be seen based on the R2 value obtained in the Balikpapan Formation, which is 0.0548.
Studi Pengaruh Powder Factor Terhadap Fragmentasi Peledakan Dan Produktivitas Alat Gali Muat Di PT. Ansaf Inti Resources Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur Fernando Lawangan; Revia Oktaviani; Agus Winarno
MINERAL Vol 7 No 2 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i2.3346

Abstract

One of the successes of a blasting is if the results of fragmentation are obtained with good size and relatively uniform so that the production target can be met. The size of the fragmentation was analyzed using Split Desktop 2.0 which resulted in a curve of the size of the fragmentation and the percentage of sieve pass (screening), at Pit 2 the optimal powder factor was between 0.20 kg/m³-0.26 kg/m³, while at Pit 7 it was between 0.22 kg/m³-0.24 kg/m³ which results in top size fragmentation in March 25.02 cm-43.2 cm, April April 35.37 cm-50.59 cm, May 19.79 cm-32.28 cm, June 26.45 cm-63.69 cm, which affect the digging time generated from the Komatsu PC 400 Excavator with an average top size fragmentation size of 38.33 cm with an average digging time of 7.95 seconds, while the Hyundai R 850 LC-9 Excavator with a fragmentation top size the average top size is 33.97 cm with an digging time of 8.44 seconds, with the average productivity of the Komatsu PC 400 Komatsu of 198.49 BCM/Hour from a plan productivity of 200 BCM/Hour while the Hyundai R 850 LC-9 average productivity a of 364.41 BCM/Hour from the plan productivity of 350 BCM/Hour
Analisis Uji Kuat Tekan Uniaksial Batupasir Pada Formasi Pamaluan, Kecamatan Longikis, Kabupaten Paser, Provinsi Kalimantan Timur Musodiq Musodiq; Tommy Trides; Shalaho Dina Devy; Revia Oktaviani; Albertus Juvensius Pontus
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.3921

Abstract

The uniaxial compressive strength test was carried out to determine the value of rock strength. This research was conducted on sandstones in the Pamaluan Formation. The tests carried out in this study were physical properties tests, compressive strength tests and grain size tests on sandstones with a total of 30 samples on the physical properties test, 10 samples on the mechanical test and 500 gram grain size test at each point, the purpose of which is to determine the effect of porosity on the compressive strength of rock. In testing the physical properties carried out, the lowest and highest porosity values ​​were 17.27 and 22.91%. The results of the compressive strength test with the lowest and highest values ​​were 3.05 and 7.63 MPa. The grain size test results at points 1 and 2 are the same, namely fine sandstones with a percentage of 45 and 44%. From the results of research that has been done the value of porosity and grain size is very influential on the compressive strength test.
Studi Studi Pengaruh Tingkat Getaran Tanah (Ground Vibration) Akibat Peledakan Terhadap Bangunan sekitar Pit 13 HW Vandrianus Felix Feto Nuwa; Revia Oktaviani; Harjuni Hasan; Tommy Trides; Albertus Juvensius Pontus
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4085

Abstract

PT. PAMA is a company engaged in mining and is a contractor of PT. Indominco Mandiri which has been running since 1996. The work contract given is blasting, from blasting activities many impacts arise, one of which is ground vibration, therefore it is necessary to measure the level of ground vibration in the west block area where there are several critical areas in the form of buildings such as offices , solar (fuel oil) storage, and PT. Indominco Mandiri, where there have been complaints regarding large vibrations and the potential for diesel spills from fuel oil. In the study the peak vector sum (pvs) value produced in December 2022 was 1.57 mm/s with the closest distance of 785 meters and in January 2023 4.21 mm/s with a distance of 500 meters. The maximum use of explosives item for explosive holes in December 2022 and January 2023 is 2,513 kg. This pvs value is still safe, because it is still below 5.0 mm/s and according to SNI 7572: 2010.
Co-Authors Achmad Faisal Agus Winarno Agus Winarno Agus Winarno, Agus Ainayah Al Fatihah Albertus J Pontus Albertus Juvensius Pontus Albertus Juvensius Pontus Amila, Sitti Nur Anakta Hartanta sebayang Ashabul Kahfi, Ashabul Azzahra, Siti Maghfirah Benny Christian BB Bryan Andreas Turnip Budi Utama, Yogi D. Devy, Shalaho Devy, Shalaho Dina Dina Devi, Shalaho Dina Devy, Shalaho Dionisyus Fransiskus Sinaga Fernando Lawangan Ginting, Emdananta Gunawan Manullang, Ronal Edi Harjuni Harjuni Hasan Harjuni Hasan Henny Magdalena Ilham, Akbar Irvantoni Simbolon, Desron Jaba, Yafet Juvensius Pontus , Albertus Juvensius Pontus, Albert Juvensius Pontus, Albertus Juvensius Pontusi, Albertus Kasbillah, Kasbillah Kevin Elzar Rosera A Kresna Phadiakara Krisanto Yardin Panggeso L. Tobing, Ciko Gratio Parkletos Lifia Kemala Dewi Litha Respati, Lucia Lucia Litha Respati Lucia Litha Respati M. Rijal, M. Mardan Ali Masayu Widiastuti Milda Milda Muhammad Rayhan Fhadillah Musodiq Musodiq Nimsi, Yekeskiel Nugroho, Windhu Nur Qorima Azis Nur, Al Maida Nurhidayat, Royan Pontus, Albertus Juvensius Rafael Bonardy Gultom Respati, Lucia Litha Ronald Alvin Ifnie, Jones S. Depari, Raja Kami Sandri Tandi Rapang Satria Bekti, Nanda sebayang, Anakta Hartanta Sembiring, Irianta Ibo Shalaho Dina Devy Shalizam, Shalizam Sharon Tria Kurniawati Silaban Silalahi, Abdi Brema Sitepu, Joe Vandame Situmorang, Ardo P Sokisha, Sokkia Suhaila Ridwan Suharni Suharni Tommy Trides Tommy Trides Tommy Trides Tommy Trides Trides, Tommy Vandrianus Felix Feto Nuwa W. S. Gumilang, W. S. Gumilang Wahyu Garini, Andini Dwi Widiastuti, Masayu Windhu Nugroho Windhu Nugroho windhu Nugroho Windhu Nugroho Windhu Nugroho windhu Yekeskiel Nimsi Yufita, Zaenul