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All Journal Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Riset dan Inovasi Manajemen
Ferdinandus Ferdinandus
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management

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Pengaruh Pemanfaatan Teknologi dan Motivasi terhadap Kinerja Pegawai Badan Balai Karantina Pertanian (BBKP) Makassar Ferdinandus Ferdinandus; Rina Rina; Rahmi Usman
Jurnal Riset dan Inovasi Manajemen Vol. 1 No. 4 (2023): November : Jurnal Riset dan Inovasi Manajemen
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jrim-widyakarya.v1i4.1397

Abstract

The aim of this research is to understand how the use of technology and motivation influences the performance of employees at the Makassar Agricultural Quarantine Agency (BBKP). This data was surveyed to obtain primary data. The Slovin formula was used in this study, and a total of 37 people were sampled. The validity and reliability of these findings have been evaluated, through tests of heteroscedasticity, multicollinearity, and normality have all been considered. The data analysis method uses multiple regression.
Perancangan Sequence Penambangan Bulan Januari dan Februari Tahun 2025 pada PT Putra Perkasa Abadi Site SKS Eka Taufiqur Rahman; Deddy Nan Setya Putra Tanggara; Ferdinandus Ferdinandus; Noveriady Noveriady; I Putu Putrawiyanta
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7076

Abstract

Mining sequence design is one of the important stages in open pit mining activities that aims to organize the excavation stages so that production activities run effectively, efficiently, and in accordance with the established targets. This research was conducted at PT Putra Perkasa Abadi Site SKS with the aim of designing a mining sequence in January and February 2025. The methods used include analysis of topographic data, geology, pit design, and monthly production targets. The data was processed using mining software to determine the excavation sequence based on elevation, overburden volume, and coal reserves. The design results show that the total planned overburden and coal volume is able to meet the company's production targets by considering slope stability and the efficiency of digging and loading equipment. In addition, the resulting sequence design also takes into account aspects of work safety and field operational conditions, such as mine road access and drainage systems. With a structured design, it is expected that mining activities during this period can run according to schedule, minimize operational obstacles, and support the achievement of production targets and cost efficiency at PT Putra Perkasa Abadi Site SKS.
Analisis kapasitas Daya Tampung Settling Pond di Pit Alfa Utara di PT. Hamparan Mulya Ronal Berkat Tumanggor; Ferdinandus Ferdinandus
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.7388

Abstract

PT. Hamparan Mulya operates in the coal mining industry and applies an open-pit extraction system. In this mining method, managing surface water particularly rainwater is essential to ensure smooth operations. An effective drainage system is required to prevent runoff water from contaminating nearby rivers, lakes, and surrounding ecosystems. One practical approach used in mining operations is the construction of settling ponds, which function as treatment units for water collected in the sump before it is released into natural waterways. This study aims to identify the appropriate storage capacity for the settling pond and sump by analyzing rainfall data using the Log Pearson Type III method. The analysis produced a design rainfall value of 507.16 mm/day and a rainfall intensity of 56.94 mm/hour. With a catchment area of 14 km², the resulting runoff discharge reaches 30,782.16 m³/hour. Based on these parameters, the settling pond must be engineered to accommodate a total discharge of 30,782.16 m³/hour.
Co-Authors Deddy Nan Setya Putra Tanggara Eka Taufiqur Rahman I Putu Putrawiyanta Noveriady Rahmi Usman Rina Rina Ronal Berkat Tumanggor