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All Journal Rekayasa Mesin Sinergi Jurnal Geomine Indonesian Mining Journal Prosiding Temu Profesi Tahunan PERHAPI Abdimas Universal INDONESIAN MINING PROFESSIONALS JOURNAL Journal of Multidisciplinary Applied Natural Science INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Jurnal AKAL: Abdimas dan Kearifan Lokal Indonesian Mining and Energy Journal JURNAL ABDI MASYARAKAT INDONESIA (JAMIN) Jurnal Geominerba International Journal of Innovation in Mechanical Engineering and Advanced Materials Jurnal Migasian Jurnal Pengabdian Masyarakat Indonesia (JPMI) Indonesian Mining Journal
Irfan Marwanza
Universitas Trisakti
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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ANALISIS LOADER MENGGUNAKAN METODE URCI (UNSURFACED ROAD CONDITION INDEX) PT ANTAREJA MAHADA MAKMUR SITE MHU KALMANTAN TIMUR Ramadhan, Rudi; Hartami, Pantjanita Novi; Putra, Danu; Marwanza, Irfan; Maulana, Yuga
Indonesian Mining and Energy Journal Vol. 8 No. 2 (2025): November
Publisher : Program Studi Teknik Pertambangan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/imej.v8i2.20786

Abstract

Produktivitas dalam kegiatan penambangan sangat dipengaruhi oleh kondisi operasional, terutama pada proses pengupasan tanah penutup (overburden). Penelitian ini bertujuan untuk mengoptimalkan produktivitas alat gali muat Komatsu PC1250SP- 8 melalui perbaikan kondisi jalan tambang dengan metode Unsurfaced Road Condition Index (URCI). Evaluasi dilakukan pada jalan hauling dari front menuju disposal di PT Antareja Mahada Makmur, Kalimantan Timur. Hasil penelitian menunjukkan bahwa perbaikan kondisi jalan secara signifikan meningkatkan nilai URCI dan menurunkan waktu edar (cycle time), yang bertujuan untuk peningkatan produktivitas alat berat. Dengan strategi perbaikan jalan yang terukur berdasarkan parameter URCI, efisiensi alat angkut meningkat dan waktu tunggu berkurang untuk excavator dapat diminimalkan.
PENGARUH GEOMETRI JALAN ANGKUT TERHADAP PRODUKTIVITAS ALAT ANGKUT DI PIT BATINMURUNG, PT. TUNAS MUDA PERTIWI SITE OBI Kirikanang, Cameron Russell; Putra, Danu; Herdyanti, Mixsindo Korra; Aryanto, Reza; Marwanza, Irfan
Indonesian Mining and Energy Journal Vol. 8 No. 2 (2025): November
Publisher : Program Studi Teknik Pertambangan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/imej.v8i2.22279

Abstract

Produktivitas alat angkut pada kegiatan tambang terbuka sangat dipengaruhi oleh kondisi jalan angkut, terutama geometri jalan seperti kemiringan (grade) dan lebar. Penelitian ini dilakukan di Pit Batinmurung, PT. Tunas Muda Pertiwi Site Obi, untuk mengevaluasi dampak geometri jalan terhadap waktu edar (cycle time) dan produktivitas alat angkut. Pengumpulan data dilakukan secara primer melalui observasi lapangan dan pengukuran kondisi jalan, serta data sekunder berupa catatan ritasi dan produksi. Hasil penelitian menunjukkan bahwa beberapa ruas jalan memiliki grade >12% dan lebar
LAND SUBSIDENCE AND GEOTECHNICAL IMPACT OF JAKARTA KOTA AREA Irfan Marwanza; Afiat Anugrahadi; Untung Sumotarto; Riskaviana Kurniawati; Himmes Fitra Yuda; Rosmalia Nugraheni
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 6, NUMBER 2, OCTOBER 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v6i2.13981

Abstract

Land subsidence has long occurred around the Special Capital Region of Jakarta. It is important to know and deal with Land subsidence events which also cause various negative impacts. Aim: When large amounts of groundwater are withdrawn from certain types of rocks, such as fine-grained sediments, land subsidence occurs. The rock compacts because the water helps to keep the ground in place. When the water is removed, the rocks collapse in on themselves.The immediate impact is the building collapse around the Kota Tua of DKI Jakarta. Methodology and Results: The research method used is a quantitative descriptive survey method by observing the amount of land subsidence that occurs in the Kota Tua area and its surroundings. The results showed that there has been a vertical land subsidence that varies between 20-60 cm. Based on the results of the resistivity values and coordinates plotted on the Regional Geological Map (Jakarta and Kep Seribu), the research location is classified into Lithology: Clay, Sand Silt, Gravel, and Pebbles (Quartenary deposits). The phenomenon, land subsidence, is caused by a combination of various parameters, including natural consolidation of alluvial soils, excessive groundwater extraction, and also building loads from infrastructure development and tectonic factors. Conclusion, significance, and impact study: Knowing the value of land subsidence and its location is expected to support urban planning, basic infrastructure planning and development, housing, settlement planning, and local financial improvement in efforts to mitigate land subsidence disasters.
PELATIHAN PENGUKURAN KUALITAS AIR SUNGAI DESA CISARUAKECAMATAN NANGGUNG Reza Aryanto; Wiwik Dahani; Irfan Marwanza; Andry Prima
Jurnal Pengabdian Masyarakat Indonesia (JPMI) Vol. 1 No. 6 (2024): Agustus
Publisher : Publikasi Inspirasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/jpmi.v1i6.2121

Abstract

Kabupaten Bogor, yang terletak diwilayah Jawa Barat memiliki potensi sumber daya alam yang menjanjikan dalam bidang pertambangan emas khususnya pada desa Cisarua. Namun, kegiatan pertambangan emas didaerah ini adalah illegal dan memiliki resiko tinggi terhadap lingkungan dan pekerja. Proses penambangan dilakukan dengan teknik sederhana dan pengolahan emas menggunakan merkuri yang berpotensi mencemari lingkungan. Penambangan tanpa izin ini sering menggunakan merkuri dan membuang air hasil pengolahan ke sungai desa Cisarua. Melalui kegiatan pengabdian kepada masyarakat ini, tim terdiri dari dosen dan mahasiswa mengadakan kegiatan penataran, penyuluhan, pelatihan terkait pengukuran dan pengelolaan kualitas air di sungai desa Cisarua. Hasil dari pelatihan dan pengukuran kualitas air sungai desa Cisarua diharapkan masyarakat dapat melakukan pemantauan kualitas air sesuai baku mutu air secara mandiri.
Co-Authors Adhitia, Iit Aditya Saputra Afiat Anugrahadi Afiat Anugrahadi Afiat Anugrahadi Ahmad Helman Hamdani Alvando Alone, Marcel Samuel Anak Agung Istri Sri Wiadnyani Andriyani Andriyani Andry Prima Ardiansyah Ardiansyah Arinda Ristawati Arkaan, Muhammad Dzaki Aryanto, Reza Azizi, Masagus Ahmad Bani Nugroho Bani Nugroho Bani Nugroho Chairul Nas Chairul Nas Chairul Nas Chairul Nas Christin Palit Dalimunthe, Yusraida Khairani Damarizky, Rico Danu Putra Danu Putra Darren, Franko Sajow Dewi Kumala Salim Djoko Hartanto Emmy Fatmi B. I. Emmy Fatmi Budhya Fadliah Fadliah Faisal Rachman Gumay, Rhazes Eesha Hadi, Singgih Irianto Trisilo Hartami, Pantjanita Novi Havidh Pramadika Herdyanti, Mixsindo Korra Himmes Fitra Yuda Idris Juradi, Muhammad IIT ADHITIA iputu rama aryawan Ivetta Ivetta Iyan Haryanto Jeremy Gerald Puglisi Kamardi, Muhammad Agus Karim, Razak Karmadi, Muhammad Agus Khuzaimah Arifin Kirikanang, Cameron Russell Korra Herdyanti, Mixsindo Kurniawati, Riskaviana M Kemal Ghifari M. A. Azizi M. Puspita M. Taufiq Fathaddin, M. Taufiq Maulana, Yuga Maulida, Fajri Mixsindo Korra Herdyanti Mohamad Nur Hariawan Muhammad Agus Kamardi Muhammad K. Ghifari Muhammad Kemal Ghifari Muhammad Napis Fikri Muhammad Rahthin Qinthara Muhammad Taufiq Fathaddin, Muhammad Taufiq Nadya A. Hartanti Nadya A. Hartanti Nas, Chairul Nas, Chairul Palit, Christin Pandiangan, Violeta Apriani Panjaitan Novi Hartami Patian, Syamidi Permatasari, Claudia Intan Prapansya, Onnie Ridaliani Prasta Kumarana Garnika Purwiyono, Taat Tri Putra, Danu Rahmawan Rahmat, Daffa Ramadhan, Rudi Ratna Ediati Reza Aryanto Ririn Yulianti Rosmalia Nugraheni Rully Naufal Falih Safitri, Diah Utami Sahetapy, Silvia Immanuela Sekar Tika Sari Simon Fides Singgih Irianto Trisilo Hadi Solihin Solihin Subandrio Subandrio Subandrio, Subandrio Suherman Dwi Nuriana Suherman Dwi Nuryana Suliestyah Sundari, Rita Susanti, Chiesa Artamevia Diva Syamidi Patian Syamidi Patian Taat Tri Purwiyono Theresa Naomi Putri Tri Purwiyono, Taat Tuheteru, Edy Jamal Untung Sumotarto W. Dahani Wahyu Gendam Prakoso Wahyu Gendam Prakoso, Wahyu Gendam Wiwik Dahani Wiwik Dahani Wiwik Dahani Wiwik Dahani Wiwik Dahani wiwik dahani, wiwik Y. Maulana Yansen Barus Yuga Maulana Yulianti, Ririn Ziad S Zulfahmi Zulfahmi