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All Journal APLIKA Jurnal Ilmu Pengetahuan dan Teknologi Journal of Degraded and Mining Lands Management Jurnal Chemurgy JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Sosial dan Teknologi Baselang: Jurnal Ilmu Pertanian, Peternakan, Perikanan dan Lingkungan Dinamika Lingkungan Indonesia Journal Transformation of Mandalika Journal of Comprehensive Science MINERAL Nusantara Civil Engineering Journal Jurnal Inovasi Global JURNAL TEKNOLOGI MINERAL FT UNMUL ANDIL Mulawarman Journal of Community Engagement Journal of Media, Sciences and Education
Harjuni Hasan
Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Mulawarman
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Journal : MINERAL

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Optimasi Konsumsi Fuel Dump Truck Terhadap Pengaruh Grade Jalan Pada Aktivitas Penambangan Pada PT. Pamapersada Nusantara Kecamatan Sangatta Utara Kabupaten Kutai Timur Mushawir Mushawir; Harjuni Hasan; Henny Magdalena
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.v7i2.3338

Abstract

The grade or slope of the road in a mining activity is certainly unavoidable. In addition to naturally following topographical contours, the shape of the mining pit is carried out from a high elevation leading to the lowest elevation following the slope level and the continuity of the excavation material makes the road should be made sloping. The high or low value of the road grade in addition to affecting the speed and travel time required by the unit, of course, also affects the level of fuel consumption. PT. Pamapersada Nusantara uses a conveyance unit with the HD Komatsu 785-7 type to move overburden material. Based on the results of the analysis, in the loaded condition, grade 2% uses 0.45 liters of fuel, 5% grades 0.77 liters, 6% grades 0.89 liters, 8% grades 1.09 liters and grades . While in the unloaded condition, grade 2% uses 0.19 liters of fuel, 5% grades 0.35 liters, 6% grades 0.4 liters, 8% grades 0.47 liters and 9% grades 0. 52 liters.
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 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 Adeliana Khairunisa, Aji Agus Winarno Agus Winarno Agus Winarno Agus Winarno, Agus Aipassa, Marlon Ivanhoe Albertus Juvensius Pontus Alfiyanda, Ahmad Azzahra, Siti Maghfirah Bandaso, Surya Bidang, Mayleni Devy, Shalaho Dina Dina Devy, Shalaho Dionisyus Fransiskus Sinaga Donal Donal Donal, Donal Edhi Sarwono Gerry Tri Virgin Gina Saptiani Graciella Jacob Hamzah Umar Henny Magdalena Hikmawati Ibrahim Ibrahim Ilham, Akbar Irvantoni Simbolon, Desron Jawatir Pardosi Jumsar A Juvensius Pontus , Albertus Juvensius Pontus, Albertus Kusnanto, Fransiska Angelina Lhita Respati, Lucia Litha Respati, Lucia Lucia Litha Respati Lumban Tobing Bill Rexy M. Rijal, M. Magdalena, Heny Megawati AP Milda Milda Miranda, Virgita Mushawir Mushawir Narius , Nugroho, Windhu Nurfaysa Pontus, Albertus Juvensius Respati, Lucia Litha Revia Oktaviani Rinto Syahreza Pahlevi Saeppudin, Ahmad Sakdillah Sakdillah A Sandri Tandi Rapang Satriana Aulia, Andi Sitepu, Joe Vandame Tommy Trides Tommy Trides Tommy Trides Toni, Toni Trides, Tommy Vandrianus Felix Feto Nuwa Wahyu Garini, Andini Dwi Warman, Neni Windhu Nugroho windhu Wiradhana, Ni Made Ayu Dwi Kartika Yauri Imanuel Tobak Yufita, Zaenul Zainuddin, Zainuddin