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All Journal ANDIL Mulawarman Journal of Community Engagement Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil
Mustafa Wadi
Unknown Affiliation
Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Environmental Science Public Health Social Sciences Other

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Rain Water Harvesting Sebagai Alternatif Pemanfaatan Sumber Daya Air Di Dusun Mari Bangun dan Mekar Baru Wahyudi, Moh Ikhwan; Fina Rafika Haque; Aulia Ade Putri; Mohammad Ibnu Praditya; Dhina Syalsabillah Nispayani; Rendy Agusti; Mustafa Wadi
ANDIL Mulawarman Journal of Community Engagement Vol. 2 No. 2 (2025): ANDIL Mulawarman J Comm Engag
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LP2M), Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/andil.v2i2.1591

Abstract

Water is anything that is above or below ground level. Water is a fundamental thing that humans need for their daily survival, so the fulfillment of clean water for the community is very important. Naturally, water can be found in three main sources, namely groundwater, surface water, and rainwater. Rainwater is a source of water that is easy to obtain and can be utilized by everyone. According to BMKG, rainfall in Indonesia in a year reaches 1,562.6 mm3. Mari Bangun -Mekar Baru Hamlets have problems in fulfilling clean water for daily needs. This community service activity aims to create a rain water harvesting system so that people have a more affordable alternative in meeting their daily clean water needs. Rain water harvesting is a rainwater collection technique using a large surface that will be forwarded into a storage tank so that it can be utilized for daily needs. The results obtained from this manufacture are that rainwater can be collected in the reservoir well and dry leaves or wood can be avoided from being mixed into the water reservoir.
Evaluasi Kinerja Alat Gali Muat dan Alat Angkut dengan Metode Match Factor pada Operasi Pengupasan Overburden pada Pit Tengah di PT. Bumi Artlantis Raya Kabupaten Berau Mustafa Wadi; Henny Magdalena; Tommy Trides
Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Vol. 3 No. 1 (2025): Januari: Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik S
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/konstruksi.v3i1.1249

Abstract

Overburden stripping operations in the coal mining industry require optimal performance of loading and hauling equipment to achieve production efficiency. This study aims to evaluate the performance of loading and hauling equipment using the Match Factor method in overburden stripping operations at PT Bumi Artlantis Raya. The results indicate that the equipment combination achieved a Match Factor of 0.85, reflecting moderate compatibility with a potential efficiency improvement of 15%. The actual productivity of Excavator 4002 reached 137.02 bcm/hour (91.35% of the 150 bcm/hour target), while Excavator 4004 exceeded the target with a productivity of 195.73 bcm/hour (130.49% of the target). In contrast, dump truck productivity remained relatively low (Mercedes dump truck: 35.58 bcm/hour; Hino dump truck: 35.40 bcm/hour), primarily due to waiting time during loading and disposal activities. Statistical analysis reveals a strong negative correlation between cycle time and productivity (R² = 0.9929). The optimal cycle time to achieve a Match Factor of 0.80 is 969 seconds, corresponding to an optimal hauling distance of 5.38–6.725 km. Although mechanical availability and physical availability were high (94–100%), the use of availability and effective utilization were relatively low due to an imbalance between loading and hauling equipment. This study concludes that improving equipment coordination, increasing bucket fill factor, enhancing haul road conditions, and implementing preventive maintenance are essential to achieving more optimal operational efficiency in overburden stripping activities.
Co-Authors Aulia Ade Putri Dhina Syalsabillah Nispayani Fina Rafika Haque Henny Magdalena Mohammad Ibnu Praditya Rendy Agusti Tommy Trides Wahyudi, Moh Ikhwan