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All Journal JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Kohesi: Jurnal Sains dan Teknologi Indonesian Journal of Science, Technology, and Humanities Jurnal Media Akademik (JMA) Jurnal Riset danAplikasi Teknik Industri (JRATI) Jurnal Pendidikan Sains dan Teknologi Terapan Jurnal Sains dan Teknologi Jurnal Riset Multidisiplin Edukasi
Ni Luh Putu Lilis Sinta Setiawati
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Optimasi Metode Kerja Bore Pile Pada Proyek Taman Teknologi Tower Turyapada Oleh PT XYZ Dengan Pendekatan Six Sigma DMAIC Sufi, Dhamar Buana; I Gusti Ngurah Priambadi; Ni Luh Putu Lilis Sinta Setiawati
Jurnal Pendidikan Sains dan Teknologi Terapan | E-ISSN : 3031-7983 Vol. 1 No. 4 (2024): Oktober - Desember
Publisher : CV.ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to optimize the bore pile work method on the Turyapada Tower Technology Park project by PT XYZ using the Six Sigma DMAIC approach. At the define stage, the identified problem was the discrepancy between actual and theoretical bore pile volumes, impacting cost, time, and quality. During the measure stage, the defect rate was 134,000 per million opportunities, equating to 2.61 sigma. Analysis using a fishbone diagram revealed several factors causing the problem: short casing installed post-drilling, uncoated bore pile walls, and inappropriate drill bits that slowed work in red soil terrain containing hard rock. Proposed improvements in the improve stage include using full casing or longer casing to reduce the risk of wall collapse, drilling and installing casing simultaneously, coating bore pile walls with bentonite to make them smoother and straighter, and using a combination of DTH and Tricone drill bits to expedite work. At the control stage, the 5W+1H method is used to ensure each improvement is implemented effectively and sustainably. Implementing these solutions is expected to enhance the effectiveness, efficiency, and quality of bore pile work, as well as reduce the volume discrepancy between actual and theoretical measures.
PERAMALAN KEDATANGAN KAPAL PESIAR MENGGUNAKAN METODE SINGLE EXPONENTIAL SMOOTHING PADA PT. PELABUHAN INDONESIA I Komang Krisnata Kanaya; Bryan Estavan Imanuel Sitanggang; Ni Luh Putu Lilis Sinta Setiawati
Jurnal Media Akademik (JMA) Vol. 3 No. 11 (2025): JURNAL MEDIA AKADEMIK Edisi November
Publisher : PT. Media Akademik Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62281/tv72sz45

Abstract

Pelabuhan sebagai simpul transportasi laut dan darat memainkan peran strategis dalam mendukung aktivitas pariwisata, termasuk kedatangan kapal pesiar. Fluktuasi musiman dan ketidakpastian jumlah kedatangan kapal pesiar di PT. Pelabuhan Indonesia menimbulkan tantangan dalam perencanaan operasional pelabuhan. Penelitian ini bertujuan untuk meramalkan jumlah kedatangan kapal pesiar menggunakan metode Single Exponential Smoothing (SES) sebagai pendekatan kuantitatif berbasis data historis. Proses peramalan dilakukan terhadap data bulanan kedatangan kapal pesiar tahun 2025, dengan optimasi nilai alpha melalui Excel Solver untuk meminimalkan kesalahan prediksi. Hasil peramalan menunjukkan bahwa dengan alpha sebesar 0,7228, diperoleh nilai Mean Absolute Deviation (MAD) sebesar 2 kapal, Mean Square Error (MSE) sebesar 6 kapal, dan Mean Absolute Percentage Error (MAPE) sebesar 29%, yang termasuk dalam kategori akurasi “cukup”. Temuan ini menunjukkan bahwa metode SES mampu memberikan prediksi yang representatif terutama pada periode dengan pola yang stabil, dan dapat digunakan sebagai dasar pengambilan keputusan terkait penjadwalan dermaga, pengelolaan fasilitas pelabuhan, serta alokasi sumber daya. Penelitian ini merekomendasikan penggunaan metode peramalan yang mempertimbangkan faktor musiman untuk meningkatkan akurasi di masa depan.
Co-Authors Albert Heijn Timisela Anak Agung Dwihana Putra Anak Agung Istri Agung Sri Komaladewi Arya, Moch Arya Puanggawa Amir TK Baiq Devi Ariska Bryan Estavan Imanuel Sitanggang Desak Ayu Sista Dewi Dr. Ir. I Gusti Ngurah Priambadi, MT Gusti Ngurah Priambadi I Gusti Agung Kade Suriadi I Gusti Ngurah Priambadi I Komang Krisnata Kanaya I Made Dwi Budiana Penindra I Made Yudi Mertha Antara I Putu Raditya Arsadera I Wayan Bandem Adnyana Joy Christian Kadek Adi Prandyana Putra Krisna, I Gusti Ngurah Bagus Hermaya Laura Greace Sinaga B Mia Juliana Mia Juliana, S.TP., M.T Ni Made Cyntia Utami Ni Made Cyntia Utami, S.T., M.T Ni Nyoman Niki Wagiswari, Ni Nyoman Niki Wagiswari Ni Wayan Amanda Febry Lestari Pande Putu Narisya Ardhaneswari Rueben Nathaniel Simanjuntak Sufi, Dhamar Buana