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All Journal OPHIOLITE : Jurnal Geologi Terapan Science and Technology: Jurnal Pengabdian Masyarakat
Laode Jonas Tugo
Jurusan Teknik Pertambangan, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Health Professions Social Sciences Other

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Analisis Fragmentasi Hasil Peledakan Batugamping dengan Metode Pemrosesan Gambar Digital Menggunakan Perangkat Lunak Wipfrag Wira Yudha; Aldiyansyah; Laode Jonas Tugo
OPHIOLITE: Jurnal Geologi Terapan Vol 6 No 2 (2024): OKTOBER 2024
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/ophi.v6i2.p92-99

Abstract

Monitoring and evaluation of blast fragmentation are critical to achieving the most optimal design and outcomes. Several methods are utilized to assess the effectiveness of blasting in the field, one of which is the digital image analysis method, which has gained popularity in recent years. This study aims to apply the digital image analysis technique to rock fragments resulting from blasting and compare the results with empirical analysis using the Kuz-Ram equation. The digital image analysis was conducted using data from three blasting activities in a limestone quarry, with the number of blast holes as follows: 130 in blast-01, 86 in blast-02, and 90 in blast-03. The spacing and burden used in the blast designs were 2.5 m and 2 m, respectively, for all three blasting activities. The results revealed that the largest deviation of 60% occurred at the 10 mm sieve size for blast-02 compared to the Kuz-Ram model. Rock fragments from blast-01 passed 80% at a sieve size of ±280 mm, while for blast-02 and blast-03, 80% of the material passed at sizes >=600 mm. The analysis showed that the percentage passing graph R(X) for all three blasting activities, as determined through the Kuz-Ram method, exhibited relatively close values, albeit with some deviations. After analyzing the three blasting activities with identical designs, the results obtained using the WipFrag software demonstrated satisfactory performance for preliminary field monitoring purposes.
Analisis Geometri Lereng Tambang Terbuka Menggunakan Metode Bishop disederhanakan pada Area Pit ASK Kabupaten Konawe Utara, Sulawesi Tenggara Natasya Puteri Alquarima Ode; Laode Jonas Tugo; Asri Arifin
OPHIOLITE: Jurnal Geologi Terapan Vol 7 No 1 (2025): APRIL 2025
Publisher : Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56099/ophi.v7i1.p13-22

Abstract

The study area utilizes open-pit mining methods across all its mining pits and plans to develop a new pit to increase annual production. Slope stability analysis is crucial for designing both single slopes and overall slopes. This research aims to identify the actual profile conditions of laterite nickel and the material characteristics within the ASK pit area, as well as to determine the factor of safety (FoS) and the probability of slope failure (PoF). The study applies slope stability analysis using the limit equilibrium method-Bishop simplified based on Mohr-Coulomb failure criteria. The results indicate that the limonite zone has a wet unit weight of 23.85 kN/m³, cohesion of 31.74 kPa, and an internal friction angle of 30.76°, while the saprolite zone has a wet unit weight of 22.20 kN/m³, cohesion of 26.25 kPa, and an internal friction angle of 29.22°. Based on analysis results, a safe single slope geometry can be applied with a slope angle ranging from 50° to 70°, a height of 6 meters, and a bench width between 1 to 3 meters. For the overall slope geometry, applying a slope angle of 38° to 42° with a bench width of 3 meters, the calculated FoS and PoF values indicate that the proposed slope design is still safe to use, with FoS > 1.1 and PoF between 25%–50%, are above the required standard threshold values.
Edukasi Pemanfaatan Kapur untuk Mengurangi Bau dan Pencemaran Kotoran Ternak Abd Hadid Rahman Ulfa; Wd. Rizky Awaliah Nafiu; Irfan Ido; Muhardi mustafa; Irfan Saputra; Laode Jonas Tugo; Wira Yudha; Hadi Zulkarnain Ladianto; La Ode Miqdad Husein; Tri Utomo Taliding
Science and Technology: Jurnal Pengabdian Masyarakat Vol. 3 No. 3 (2026): Available online
Publisher : CV. Science Tech Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69930/scitec.v3i3.873

Abstract

Permasalahan bau dan pencemaran lingkungan akibat kotoran ternak masih menjadi tantangan yang dihadapi masyarakat Desa Wawatu, Kecamatan Moramo Utara, Kabupaten Konawe Selatan, Provinsi Sulawesi Tenggara. Kondisi ini muncul karena pengelolaan limbah ternak masih dilakukan secara tradisional tanpa perlakuan khusus, sehingga menimbulkan bau menyengat serta berpotensi mencemari tanah dan air di sekitar permukiman. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan pemahaman warga mengenai pemanfaatan kapur sebagai bahan alkali sederhana yang mampu menetralkan bau dan menghambat pertumbuhan mikroorganisme pembusuk pada kotoran ternak. Kegiatan dilaksanakan melalui metode ceramah, diskusi interaktif, dan demonstrasi di Kantor Desa Wawatu, dengan melibatkan peternak sapi dan kambing setempat. Hasil kegiatan menunjukkan antusiasme peserta yang tinggi, ditandai dengan tingkat kehadiran yang baik dan banyaknya pertanyaan seputar jenis, dosis, serta cara aplikasi kapur pada kotoran ternak. Masyarakat memperoleh pemahaman baru mengenai mekanisme kerja kapur dalam menaikkan pH kotoran ternak sehingga menekan pembentukan gas amonia dan hidrogen sulfida, sekaligus mempercepat pengeringan limbah. Kegiatan ini memberikan kontribusi nyata berupa peningkatan kesadaran masyarakat terhadap alternatif pengelolaan limbah ternak yang murah, sederhana, dan ramah lingkungan, serta menjadi langkah awal menuju sanitasi kandang yang lebih baik di Desa Wawatu.
Co-Authors Abd. Hadid Rahman Ulfa Aldiyansyah Asri Arifin Hadi Zulkarnain Ladianto Ido, Irfan Irfan Saputra La Ode Miqdad Husein Muhardi mustafa Natasya Puteri Alquarima Ode Tri Utomo Taliding Wd.Rizky Awaliah Nafiu Wira Yudha Wira Yudha