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Journal : Journal of Mining Insight

Evaluasi Jalan Angkut untuk Produksi Penambangan Area Pit 6 B Pada PT Jhonlin Baratama Kalimantan Asmiani, Nur; Widodo, Sri; Usman, Arfa
Jurnal of Mining Insight Vol 1 No 3 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i3.216

Abstract

Road access is an important factor in the achievement of coal and OB transport targets. Therefore, transport activities must be accompanied by road conditions that are suitable to be used as production routes in accordance with the standards adopted by Bina marga and AASTHO. The purpose of this study is to determine the geometry of mining road and the supporting factor of smoothness and safety at PT. Jhonlin Baratama. The data used in this study are data of road haul road, radius and superelevation, cross slope and road slope. After this data is obtained then processed using software Minescape 5.7 to obtain the count of road length, road width, and elevation. MS Software. Excel to know the evaluation data of high difference, road grade, cross slope, radius and superelevation. Processed data were analyzed based on standards of Bina marga and international AASTHO to determine the feasibility of road geometry. From the results of study that has been done, it is known that the existing haul road already meets the minimum width requirement for a straight road that is 9 m for Hino 320 and 19 m for HD465-7. On the two-lane haul road and on the bend, for Hino 320 already meets the minimum width standard whereas for HD 465-7 it is necessary to add the width of the bend in segment C, F, G, H and I the width addition is intended to prevent dump truck waiting when passed. There are also some road segments whose slope exceeds the standard, which is 8% and does not have a cross slope that has the potential to cause puddles.
Analisis Mine Dewatering pada Penambangan Nikel PT Makmur Lestari Primatama Kecamatan Langgikima Kabupaten Konawe Utara Provinsi Sulawesi Tenggara ma'rief, Al’Faizah; Harwan; Widodo, Sri
Jurnal of Mining Insight Vol 1 No 4 (2023): Journal of Mining Insight
Publisher : CV Insight Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58227/jmi.v1i4.252

Abstract

The problem that is often faced in mining activities in open pit mines is high rainfall that can hamper mining operations. Mine Dewatering is a handling of mine water problems by removing water that has entered the mining area (by utilizing differences in height and gravitational force) through drainage channels to temporary storage ponds (sump). This system is commonly applied for handling runoff from rainwater. The purpose of this study is to find out the volume of water entering the mining front, analyze the ideal sump volume to hold runoff water and analyze the ability and duration of pumping to slice water that is in the sump. The average rainfall obtained from data for 2019-2022 is 81 mm/day. The calculation of planned rainfall is determined using a gumble distribution, the calculation of planned rainfall based on the repeat period over 2 years is 201,658 mm/day. Based on the results of the study, the average rain time was 11.97 hours, rainfall intensity was 6,572 mm/hour, runoff coefficient was 0.9 and the rain catchment area was 692,000 m2. So that the runoff water discharge that enters the sump is 4,093.04 m3/hour, the total volume of water entering the sump is 98,233 m3/day. The ideal sump volume to hold runoff water is 71,813.36 m3. The pumping discharge is 1,841.62 m3/hour, the length of sump drying time with an estimated pumping time of 20 hours/day is 9 days.
Co-Authors - Shobirun ., Sufriadin Abdul Jabar, Muhamad Adi Maulana, Adi Adi Tonggiroh Aditya, Dzulkifli Agung C., Budiarto Tedy Agus Didit Haryanto -, Agus Didit Haryanto Agus Riyanto Ahmad Faisal Akhmad Akhmad Akhmad Muttaqin Ali Akbar Alvionita, A. Febbi Amalia Noviyanti Amir Syarifudin, Amir Amir, Muh. Karnoha Amir, Muhamad Karnoha Amirullah, Rusman Andrian Nuriza Johan, Andrian Nuriza Anik Sulistiyanti Any Suryantini Apriliandita, Denita Teza Ayu Ardana, Rifal Arif Fadllullah Arifin, Mubdiana Arikah, Titi Arumansawang, Andi Aryanti Virtanti Anas Azijah, Izattul Aziz , Syahrul Fatchul Bagiya Bagiya Bakri, Hasbi Bakri, Suriyanto Bayu Purnomo, Lucky Bobihu, Sufran Taufik Budi Wiratno, Budi Budiarti, Ika Niswatin Budiman, Agus Ardianto Chayati, Nurul Defidelwina Denny Agustiningsih Deswita, Kurnia Djamaluddin . Dwidjono Hadi Darwanto Eddy Mulyadi Edi Sunjayanto Masykuri, Edi Sunjayanto Elsi Dwi Hapsari Faiz, Mifta Achmad Faizuddin, Mohammad Falirat, Naomi Febrianti, Marsela Fitri Haryanti Gunawan, Syahrul Hafram, Anshariah Hairyanti, Rizka Handono, Wiyasto Dwi Hanny Hafiar Hari Purnama, Hari Harwan Harwan Hasnur, Zool Kurniawan Hatta, Asta Arjunoarwan Hattu, Sendy Hazairin Zubair, Hazairin Heman Pailak Herman Sudiman Herman Sudirman Hermawan, Dudi Hermawan, Dudi Husniah, Nia I Gusti Bagus Wiksuana I WAYAN BUDIASA Iim, Dede Ilma Sarimustaqiyma Rianse Imai, Akira Indarwati Indarwati Irham, Irham Irzal Nur, Irzal Jamhari, Jamhari Jangkung Handoyo Mulyo Jayadi, Adi Jefri, J Johanes Hutabarat Julita, Ika Justitia Junaedi Setiyono Kadar, Muhammad Ilham Kambu, Megawati Kasbani, Kasbani Khairunnisa, Kafita Lathifatul Koichiro Watanabe, Koichiro Kusuma Putri, Ratih Hardini La Ode Dzakir Lestari Rahayu Waluyati Long, Zalizah Awang Lukman Hakim M Imran, A ma'rief, Al’Faizah Machmudah, Machmudah maryatun maryatun Masyhuri (Masyhuri) Masyhuri Masyhuri Muhammad Baiquni Muhammad Ramli Musri, Musri Nabila, Muthia Nani dkk. Mulyaningsih Natalia, Tia Nawir, Alfian Nikmatul Khayati Nugroho, M.S.Priyono Nur Ainun Nur Alam Fajar Nur Asmiani Nurfadli Nurfadli Nurhayati Nurhayati Nurliah Jafar Nurliah Jafar, Nurliah Nurlianti Dahliar, Nurlianti Nurwasikto, Arif Nurwaskito, Arif Okto Ivansyah Pandini, Sapitri Paramarti, Prajna Fawwaza Alya Paryanti, Atik Budi Permana, Aang Panji Purwanto . Putri, Yusfida Aulia Qaidahiyni, Nirmana Fiqra Rahmawati, Nur Rizka Ratna Purnama Sari Refanti Resa Nirmala Jona Rini Novrianti Sutardjo Tui Rizki Amalia Rony, Zahara Tussoleha S. Tui, Rini Novrianti Sabbina, Fauziah Asma Saputra, Wiwin Sasilani, Resni Senja Rum Harnaeni Shobirun - Slamet Hartono Soedjono, Sri Kadarsih Soetoyo, Soetoyo Sougi, Widhia Sri Peni Wastutiningsih Sudar Sudar Sufriadin, Sufriadin Sugiarti Sugiarti Suhanto, Edi Sukardin, Sukardin Sulaeman, Bambang Sulartiningrum, Sri Sumardi, Edy sumarno, eni ernawati Suminah Suminah, Suminah Sunarru Samsi Hariadi Suparmi Suparmi Suryadi, Tatang Suryanih, Suryanih Sutanto Sutanto Syaiful Hidayat, Syaiful Tamri, Tamri Tri Budi Wahyuni Rahardjo, Tri Budi Wahyuni Trisiwi Wahyu Widayati Tusino Tusino, Tusino Uli, Mariati Ulva Ria Irvan Usman, Arfa Utamakno, Lakon van Leeuwen, Theo Veni Purnama Sari, Veni Purnama Wahyu Wibawa, Wahyu Wahyudin Wahyudin Wahyuni, Nilam Winda Amelia Wicaksono, Andika Bayu Wulandari, Yenita Xander Salahudin Yogi La Ode Prianata Yosepha, Sri Yanthy Yuliana , Anan Yunita Wisda Tumarta Arif