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All Journal International Journal of Advances in Applied Sciences TAMBANG Jurnal Teknologi Pertambangan Techno LPPM Seminar Nasional Informatika (SEMNASIF) Jurnal Teknologi Mineral dan Batubara Jurnal Geomine Indonesian Mining Journal PROMINE Jurnal Geosains dan Teknologi Jurnal GEOSAPTA Prosiding Temu Profesi Tahunan PERHAPI INDONESIAN MINING PROFESSIONALS JOURNAL Science and Environmental Journals for Postgraduate Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Journal La Multiapp INTAN Jurnal Penelitian Tambang Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Teknologi Mineral dan Batubara
Singgih Saptono, Singgih
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ANALISIS PENGARUH MASSA BAHAN PELEDAK TERHADAP GROUND VIBRATION UNTUK MENDAPATKAN PPV ≤ 3MM/S PADA JARAK 300M PIT INUL MIDDLE 3B, PT KALTIM PRIMA COAL, KABUPATEN KUTAI TIMUR, PROVINSI KALIMANTAN TIMUR Ilyasa, Muhammad Wildan; Saptono, Singgih; Siwidiani, Indri Lesta; Titisariwati, Indun; Ratminah, Wawong Dwi
Jurnal Teknologi Pertambangan Vol. 9 No. 2 (2024): Januari 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jtp.v9i2.11876

Abstract

PT. Kaltim Prima Coal (PT. KPC) merupakan perusahaan yang bergerak di bidang pertambangan batubara yang terletak di Kecamatan Sangatta, Kabupaten Kutai Timur, Provinsi Kalimantan Timur. Salah satu pit yaitu Pit Inul Middle Panel 3B memiliki batas pit yang berjarak ±300m dari rumah penduduk. Pembongkaran dilakukan dengan melakukan kegiatan peledakan pada lapisan penutup. Salah satu efek dari kegiatan peledakan adalah dapat menimbulkan getaran tanah. Getaran tanah yang berlebih dapat menimbulkan kerusakan pada struktur bangunan. Menurut SNI 7571:2010 getaran tanah yang dapat merusak jenis bangunan kelas dua adalah Peak Particle Velocity (PPV) dengan nilai 3mm/s. Pada 9 April 2022 terdapat dua peledakan dengan PPV lebih dari ambang batas yang diukur pada rumah penduduk yang berjarak ±300m dari lokasi peledakan dengan nilai 3,33mm/s dan 3,101mm/s. Adanya hasil PPV tersebut dapat merusak struktur bangunan sehingga perlu dilakukan analisis untuk menanggulangi dampak yang ditimbulkan. Analisis dilakukan dengan menghubungkan nilai PPV dengan massa isian bahan peledak dan jarak pengukuran. Berdasarkan analisis massa isian bahan peledak dan jarak pengukuran berpengaruh pada nilai PPV. Terdapat dua usulan pengurangan massa isian bahan peledak dari 20 kg menjadi 19kg (Berta, 1985) dan 17kg (USBM,1962 dan Agrawal & Mishra,2018) pada jarak 300m. Usulan tersebut diprediksi memiliki crushing zone sebesar 9,969m (Kanchibotla et al,1999) dengan kerusakan batuan Strong tensile and some radial cracking of rock (Bauer dan Calder, 1978).
CONVERGENCE MONITORING UNTUK PREVENTIVE SUPPORT MAINTENANCE BERDASARKAN NILAI POTENTIAL DISPLACEMENT PADA AREA CONVEYOR DEEP MILL LEVEL ZONE, PT FREEPORT INDONESIA Larasingati, Margaret Aubrey; Wiyono, Bagus; Saptono, Singgih; Linggasari, Shenny; Rianto, Doli Jumat
Jurnal Teknologi Pertambangan Vol. 9 No. 2 (2024): Januari 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jtp.v9i2.11877

Abstract

Area conveyor drift tambang bawah tanah DMLZ sangatlah penting dan kritis untuk kegiatan transportasi bijih, sehingga diperlukan pemantauan dan perawatan drift. Tambang bawah tanah yang semakin dalam dapat mengakibatkan penggalian bawah tanah menjadi lebih rentan terhadap kerusakan dan desain tambang menjadi lebih rapuh. Pendekatan desain ground support berdasarkan potensi deformasi ketika terjadi displacement akibat adanya tekanan perlu dilakukan karena saat ground support mengalami deformasi, masing-masing kapasitas ground support berkurang secara bertahap menjadi nol. Pendekatan tersebut dapat dikembangkan dengan implementasi Preventive Support Maintenance (PSM), dimana pemasangan tambahan ground support dilakukan sebelum area tersebut membutuhkan rehabilitasi. Penelitian dilakukan dengan pengambilan data displacement yang terjadi di tiap stasiun sepanjang area drift conveyor DMLZ menggunakan alat ukur konvergen. Data displacement kemudian diolah dan dianalisis untuk mendapatkan nilai cumulative displacement dan incremental velocity, sehingga dapat membuat klasifikasi PSM berdasarkan nilai potensi displacement dan kapasitas ground support yang telah terpasang di area tersebut. Hasil penelitian menunjukkan bahwa data pengukuran dari bulan Mei 2022 sampai dengan April 2023 tidak terjadi displacement yang signifikan. Pengaruh displacement yang terjadi sepanjang area drift conveyor DMLZ sampai saat ini belum menimbulkan kerusakan yang tampak secara visual, namun kegiatan pemantauan tetap perlu dilakukan secara berkala. Klasifikasi PSM telah dibuat berdasarkan potensi displacement, dimana action plan yang disarankan untuk PSM yaitu pemasangan ground support berupa MDX bolt sepanjang 3 m dengan spasi 1,1 m.
Pengaruh Diskontinuitas Terhadap Kestabilan Lereng Batuan Terkekarkan Studi Kasus Kuari Andesit PT Lola Laut Timur Kabupaten Bogor Irwan, Andesta Granitio; Koesnaryo, S.; Dwinagara, Barlian; Saptono, Singgih
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2433

Abstract

Discontinuity in a rock mass has an influence on the stability of a rock slope because it is one of the controlling factors of slope failure. In this study, an analysis was carried out on the role of discontinuities, namely joints and lithic tuff layers on slope stability and the effect of persistent parameters and joint roughness on the safety factor of safety factor. The analysis used is the effect of changes in the thickness of the lithic tuff, persistence and the value of joint roughness on the value of the safety factor. Processing of slope stability data using Rocscience RS2 Software with Finite Element Method modeling with rock mass modeling used in the analysis, namely the Veneziano Model. The results showed that an increase in the thickness of the lithic tuff layer resulted in a decrease in the safety factor of the slope up to 1.37%. The effect of the persistence parameter on the slope safety factor was found that the higher the persistence value, the lower the slope safety factor value up to 2,9% and changes in the JRC value decreased the safety factor value up to 1,7%.
Analisis Elasto Plastik Bukaan Silindris Berbasis Hoek-Brown pada Terowongan Kalilingseng Khalilullah, Hanif; Saptono, Singgih
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.1550

Abstract

The stability of tunnels excavated within heterogeneous rock masses necessitates analytical approaches capable of realistically representing elasto-plastic behavior. This study evaluates the elasto-plastic response of the Kalilingseng Tunnel (Kulon Progo) employing the Hoek–Brown (H–B) failure criterion and the analytical formulation of Carranza-Torres and Fairhurst (CTF) for cylindrical openings. Rock-mass parameters were derived from field-based classification (GSI = 50) and back-analysis using RocLab, yielding mb = 1.509, s = 0.003866, a = 0.5057, Erm = 1.76 GPa, and ν = 0.28. The in-situ stresses at a depth of 34 m indicate σv = 0.637 MPa, σh = 0.322 MPa, and a normalized stress S0 = 0.0252. Analytical results show an onset of plasticity characterized by a critical internal support pressure Pi* = 0.00213, a relative plastic zone radius ξ = 1.010 (≈1% beyond the excavation boundary), and a nondimensional radial closure Ur = 0.000487, corresponding to an actual displacement ur ≈ 0.73 mm for a tunnel radius b = 1.5 m. The wall-stress profile yields σr(b) = 0.0017 MPa and σθ(b) = 0.958 MPa, both well below the rock-mass strength. The resulting Ground Reaction Curve (GRC) exhibits a smooth, nonlinear decay without any abrupt deformation, consistent with the mild yielding regime described in the nondimensional CTF framework. These findings confirm that the rock mass remains inherently stable, implying that support strategies required for the tunnel are primarily deformation-control measures rather than structural reinforcement.
ANALISIS METODE NUMERIK PENGARUH HUJAN TERHADAP KESTABILAN LERENG TUNGGAL TIMBUNAN DI TAMBANG TERBUKA BATUBARA Akbar, Wahyu Nusantara; Dwinagara, Barlian; Saptono, Singgih; Haq, Shofa Rijalul; Lusantono, Oktarian Wisnu; Prabandaru, Prasodo Datu
Jurnal Teknologi Mineral dan Batubara Vol 21 No 1 (2025): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No1.2025.1599

Abstract

Indonesia, with its tropical climate and high rainfall, especially near the equator, is prone to slope instability influenced by intense rainfall events. Rainfall increases pore water pressure, reduces effective stress, and decreases shear strength, which in turn lowers the safety factor and increases the probability of failure. However, studies on pore pressure changes during rainfall infiltration have not been extensively studied, particularly in Indonesia. This study aims to analyze the effect of rainfall on the stability of a single slope in a waste dump using a numerical method based on a coupled hydro-mechanical approach. Simulations were conducted using transient finite element analysis (TFEA) to evaluate pore water pressure variations. In addition, the limit equilibrium method (LEM) modeling was also carried out to assess changes in slope safety factors. The analysis was performed using Slide2 software under various rainfall and duration scenarios, with a total of 1,568 model combinations over a 24-hour simulation period. The results show that rainfall events reduce the safety factor value by up to 31.54%. The relationship between the safety factor value and rainfall can be expressed by the equation FK = 2,1607 CH-0,05, which shows a strong correlation with an R2 value of 0,9309.
ANALISIS METODE NUMERIK PENGARUH HUJAN TERHADAP KESTABILAN LERENG TUNGGAL TIMBUNAN DI TAMBANG TERBUKA BATUBARA Akbar, Wahyu Nusantara; Dwinagara, Barlian; Saptono, Singgih; Haq, Shofa Rijalul; Lusantono, Oktarian Wisnu; Prabandaru, Prasodo Datu
Jurnal Teknologi Mineral dan Batubara Vol 21 No 1 (2025): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No1.2025.1599

Abstract

Indonesia, with its tropical climate and high rainfall, especially near the equator, is prone to slope instability influenced by intense rainfall events. Rainfall increases pore water pressure, reduces effective stress, and decreases shear strength, which in turn lowers the safety factor and increases the probability of failure. However, studies on pore pressure changes during rainfall infiltration have not been extensively studied, particularly in Indonesia. This study aims to analyze the effect of rainfall on the stability of a single slope in a waste dump using a numerical method based on a coupled hydro-mechanical approach. Simulations were conducted using transient finite element analysis (TFEA) to evaluate pore water pressure variations. In addition, the limit equilibrium method (LEM) modeling was also carried out to assess changes in slope safety factors. The analysis was performed using Slide2 software under various rainfall and duration scenarios, with a total of 1,568 model combinations over a 24-hour simulation period. The results show that rainfall events reduce the safety factor value by up to 31.54%. The relationship between the safety factor value and rainfall can be expressed by the equation FK = 2,1607 CH-0,05, which shows a strong correlation with an R2 value of 0,9309.
Penentuan Konstanta Massa Batuan Utuh (mi) Andesit Pada Pertambangan Rakyat Bawah Tanah Emas Plampang II, Kulon Progo, Yogyakarta Suryani, Diana Azizah; Saptono, Singgih; Dwinagara, Barlian; Wiyono, Bagus; Rosadi, Peter Eka; Titisariwati, Indun
Jurnal Geosains dan Teknologi Vol 8, No 2 (2025)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.8.2.2025.93-104

Abstract

Penambangan bawah tanah memiliki tantangan utama dalam menjaga kestabilan lubang bukaan, yang sangat dipengaruhi oleh kekuatan massa batuan. Di daerah penambangan emas rakyat Plampang II, batuan andesit sebagai batuan induk memerlukan penentuan nilai konstanta massa batuan utuh (mi) sebagai parameter dalam generalized Hoek-Brown failure criterion untuk memperkirakan kekuatan batuan di bawah kondisi tegangan tiga arah. Penelitian ini menggunakan uji triaksial terhadap lima belas conto batuan andesit dengan variasi tegangan utama minimum (σ3). Data diolah menggunakan pendekatan statistik dan numerik untuk menentukan nilai mi, lalu dianalisis kesesuaiannya dengan referensi dari Hoek (2006). Nilai mi yang diperoleh, yakni 29,46 (statistik) dan 27,14 (numerik), berada dalam rentang literatur (25 ± 5) menurut Hoek (2006). Nilai mi hasil penelitian digunakan dalam simulasi kestabilan lubang bukaan dan vertical shaft menggunakan perangkat lunak elemen hingga. Hasil simulasi menunjukkan bahwa lubang bukaan dan vertical shaft menunjukkan kondisi tidak stabil. Nilai Strength Factor (SF) pada keduanya kurang dari 1,00, menandakan kondisi batuan sudah berada di fase plastis. Oleh karena itu, diperlukan penyangga tambahan untuk meningkatkan kestabilan dan keamanan tambang bawah tanah.
IDENTIFIKASI POTENSI LONGSORAN LERENG BERDASARKAN ANALISIS KINEMATIKA DI PT. HARMAK INDONESIA Markus Ola; Singgih Saptono; Barlian Dwinagara
Jurnal Teknologi Mineral dan Batubara Vol 21 No 3 (2025): Jurnal Teknologi Mineral dan Batubara Edisi September 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No3.2025.1580

Abstract

Open-pit mining operations are strongly influenced by slope stability conditions throughout the mining process. Factors that influence slope stability including lithological distribution, slope geometry, surface conditions, and geological structures at both local and regional scales. This study aims to identify potential slope failures associated with the presence of discontinuity planes using a kinematic analysis approach. Geological structural data were collected using the scanline sampling method at three observation locations, yielding a total of 115 joint sets, and laboratory testing was conducted to determine the internal friction angle of the rock mass. Kinematic analysis was performed using Rocscience Dips software to evaluate the geometric relationships among discontinuity orientations, slope orientation, and the internal friction angle. The results indicate that at scanline 1 and scanline 2, potential wedge failures are classified as stable due to the absence of daylighting conditions, whereas at scanline 3, a potential planar failure was identified that kinematically satisfies all instability criteria. The presence of water and vibrations induced by excavation activities may act as triggering factors that reduce slope stability.
IDENTIFIKASI POTENSI LONGSORAN LERENG BERDASARKAN ANALISIS KINEMATIKA DI PT. HARMAK INDONESIA Markus Ola; Singgih Saptono; Barlian Dwinagara
Jurnal Teknologi Mineral dan Batubara Vol 21 No 3 (2025): Jurnal Teknologi Mineral dan Batubara Edisi September 2025
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol21.No3.2025.1580

Abstract

Open-pit mining operations are strongly influenced by slope stability conditions throughout the mining process. Factors that influence slope stability including lithological distribution, slope geometry, surface conditions, and geological structures at both local and regional scales. This study aims to identify potential slope failures associated with the presence of discontinuity planes using a kinematic analysis approach. Geological structural data were collected using the scanline sampling method at three observation locations, yielding a total of 115 joint sets, and laboratory testing was conducted to determine the internal friction angle of the rock mass. Kinematic analysis was performed using Rocscience Dips software to evaluate the geometric relationships among discontinuity orientations, slope orientation, and the internal friction angle. The results indicate that at scanline 1 and scanline 2, potential wedge failures are classified as stable due to the absence of daylighting conditions, whereas at scanline 3, a potential planar failure was identified that kinematically satisfies all instability criteria. The presence of water and vibrations induced by excavation activities may act as triggering factors that reduce slope stability.
Co-Authors Akbar, Wahyu Nusantara Alfat, Sayahdin Andesta Granitio Irwan Ardya Pramesti Putri Arindry Aryanti, Dian Eka Astika Putri Roshinta Azizi, Masagus Ahmad Azkiya, Ahmad Azkal Bagus Wiyono Bagus Wiyono, Bagus Barlian Dwi Nagara Barlian Dwinagara Barlian Dwinagara Bartolomeus Windyaldi Saksono Cahyadi, Tedy Agung D Haryanto Dahono Haryanto Danu Mirza Reky Doli Jumat Rianto Dwi Yolanda Sumbung Eddy Winarno Eddy Winarno Edy Nursanto Faisal Akbar Putra Frampton, Samantha Michelle Fresly Widodo Malau Gabriel Ranteallo Gunawan Nusanto Hariyadi, Sundek Hasywir Thaib s Hasywir Thaib Siri Hendra Rezkie Herry Sofyan Herry Sofyan Herry Sofyan Horman, Juanita R. Ilep Prengki Ilyasa, Muhammad Wildan Indun Titisariwati Indun Titisariwati, Indun Ir. H. Hasywir Thaib Siri, M.Sc, Ir. H. Hasywir Ira, Nurmaya Putri Kevin Bagaskara Khalilullah, Hanif Koesnaryo, S. Kurniawan Kurniawan Kurniawan Kurniawan Kurniawati, Savani Larasingati, Margaret Aubrey Linggasari, Shenny Lusantono, Oktarian Wisnu M. Dadang Wahyudi M. Dadang Wahyudi, M. Dadang M. Rahman Yulianto M. Rahman Yulianto Markus Ola Metboki, Matilda Misdiyanta, Partama Nurkhamim Oktarian Wisnu Lusantono Parissing, Vinsentia Peter Eka Rosadi Peter Eka Rosadi, Peter Eka Prabandaru, Prasodo Datu Putri Nova Haryu Dhanti Raden Hariyanto Raden Hariyanto, Raden Rahmatyo Gilang Trilaksono Ramadhan, Muhammad Raflie Resa Risal Pradita Rianse, Mohammad Suriyaidulman Rianto, Doli Jumat Ridho Kresna Wattimena Rika Ernawati Risaldi Hidayat S Koesnaryo S Koesnaryo S. Koesnaryo S. Koesnaryo Santika Adi Pradhana Sari B Kusumayudha Sari Bahagiarti Kusumayudha Shenny Linggasari Shofa Rijalul Haq Shofa Rijalul Haq Simarmata, Bestian Parnan Siwidiani, Indri Lesta Stefanus Jagad Sudarsono Sudarsono Suryani, Diana Azizah Tien Veny Vera Vega Vergiagara Vega Vergiagara Vergiagara, Vega Wawong Dwi Ratminah, Wawong Dwi Winda Winda Yulianto, M. Rahman