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Budhi Setiawan
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Journal : mineral

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Identifikasi Peningkatan Strength Factor Dengan Metode Q-System Pada Terowongan Tambang Bawah Tanah Daerah Perambahan, Kota Sawahlunto, Sumatera Barat Pebby Putra Juenda; Harnani Harnani; Budhi Setiawan
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.v7i2.3418

Abstract

Underground mining activities (Undergound Mining) at PT Allied Indo Coal Jaya Encroachment area, Sawahlunto City has the risk of subsidence due to reduced soil carrying capacity due to excavation of underground mine openings. The excavation of underground mine openings will result in disruption of the stability of the area such as roof collapse, rib spalling, and floor heave. This research was conducted in 2 research locations, namely Tunnel 6 Seam B and Tunnel 3 Seam C which aims to determine the recommendation of a buffer system in underground mine openings (Tunnel) by analyzing the geomechanical value of rocks using the Rock Tunnelling Quality Index (Q-System) method. ) so that the Strength Factor value increases. Data collection methods were carried out by field observation and laboratory testing, while data processing used Phase 8.0 software with Mohr-Coulomb failure criteria. The results of calculations and data processing showed that the Strength Factor value in Tunnel 6 Seam B was 1,04 (relatively stable) and Tunnel 3 Seam C was 0,84 (unstable). These results indicate that Tunnel 6 Seam B and Tunnel 3 Seam C must be supported by a buffer system. After the buffering system was carried out the Strength Factor value of Tunnel 6 Seam B increased to 1,59 (stable) and Tunnel 3 Seam C increased to 1,63 (stable).
Co-Authors Abdurrahman Hanif Albaihaqi Abimanyu, Gilang Ahmad Hafiz Nurmansyah Aldri Frinaldi Alfiati Alfuazri, M. Gilang Ama, Fuad Andayani Andayani Andayani Andili, Agshal Almachzumi Ani Rakhmawati Anton Wijaya Arief Setyawan Asof, H. Marwan Atik Sri Wulandari Atikah Anindyarini Atthoriq, Muhammad Hafidz Bakri Bakri Budi Waluyo Cahyaningrum, Fitria Chaesar, Ari Suryawati Secio Chafit Ulya Charlos Togi Stevanus, Charlos Togi Dede Nurohim Dedi Rohendi Dyah Hastuti, Endang Wiwik Eddy Ibrahim Edi Riawan, Edi Edy Suryanto Edy Sutriyono Ernawati Fade Risa Azzahra Fadhellatul Kamil Faradila, Nanda Argi Noer Farahdila, Silvie Fauziyyah, Ari Fitri Febi Annisa Febriyanti, Noreka Elisabeth Felicity, Felicity Ferdian Syahputra Firstya Evi Dianastiti Fitriani, Aula Gallant Dwi Pangestu Nugroho Akbar Gurada Capah, Ade Indra Harnani Harnani Hartati, Restiana Dwi Haryanti, Rini Dwi Hastuti, Nuri Puji Helen Dwi Putri Hermawan, Muhammad Alfian Hibatullah, Kevin Nabil Islam, Muhammad Izzul Ismaryanto, Ismaryanto KAMIL, FADHELLATUL Kartika Ishartadiati Karyadi, Rian Kasa, Deeana Khoiri, Elvira Chustiana Kundharu Saddhono Kurniawan, Deviyanto Landia, Karmila Putri Lee, Jason Lusiani Tjandra Marswati, Ceria Masfufatun Masfufatun Maulana Yusuf Muhammad Rohmadi Muhammad Taufik Toha Mujadidi, Muhammad Sibghotallah Mukhlis, Muhammad Munib Ikhwatun Iman Novita Meryana Nugraheni Eko Wardani Nugroho, Sidiq Oman Abdurahman Pebby Putra Juenda Pebrianto, Rosihan Permana, Lano Adhitya Pranata, Ridho Pratama Goestyananda Pratika Yuhyi Hernanda Purwadi Purwadi Putri, Atika Nabila Putri, Helen Dwi Putri, Zahrah Belinda RAHARJO, BUDIONO Rahaya, Ivana Septia Raheni Suhita Rahmatullah, Arif Ramadhani, Asri Kamila Ratu Parosa, Jovita Riduan Mulyadi Rifki Aditya Rina Sahara Rio, Ferdinan Riyaningrum, Latifah Rizki, Kurnia Rahma Rizkie, Dania Rosihan, Pebrianto Rowindasari, Anthik Sabaruddin Sabaruddin Safrihady, Safrihady Sakinah, Arifatunnisa Santoso, Nugroho Ponco Santoso, Nugroho Ponco Sarwiji Suwandi Setyaningsih, Arinda Oktariski Slamet Subiyantoro Sumarwati Suyeda, Fadhil D. Tri Indrayanti Utami, Sri Lestari Wahdini, Lisa Wahyu Wardana, Muhammad Aditya Wisnu Wardani, Shinta Wicaksono, M Dwiki Satrio Wicaksono, M. Dwiki Satrio Wijaya, Wildan Maulana Wulandari, Zhalsa Yogie Zulkurnia Rochmana Yuliningsih, Yuliningsih Zhura Salsabilla Putri Zulianto, Sugit