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Sefrus, Tri
Universitas Prof. Dr. Hazairin, SH
Aerospace Engineering Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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PERANCANGAN ALAT PENDETEKSI BANJIR DENGAN MEMANFAATKAN TINGGI MUKA AIR SKALA LABORATORIUM Yoggi Hendra Safutra; Meilani Belladona; Tri Sefrus
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.25-32

Abstract

Flood is one of the disasters that often hit in Indonesia which can occur every year. Flood is a natural disaster event that occurs when a water flow can no longer accommodate the volume of water. The flooding that occurred in Bengkulu City, especially in the prosperous swamp sub-district area, was caused by the high activity of the Bengkulu watershed due to coal mining upstream of the Bengkulu River Basin which had been carried out for a long time. The problem in this research is how to design a flood detector using laboratory scale water level. The purpose of the research to be carried out is to design a simple laboratory-scale flood detection mitigation tool that is useful for knowing the amount of water level rise in the Bangkahulu estuary river when a flood will occur. The method used in this study is the collection of primary data and secondary data on the Bangkahulu estuary river which will be scaled to obtain the results of making tools. The results of this study found that the normal water level at the research location was 3m, the height before the flood was 5.9 m, the height at the time of the flood was 8.44 m. A flood detection device has been tested, on a normal water level the device sounds with a time of 1 minute 46 seconds, discharge 0.18 liters/second, the water level alerts the tool sounds with a time of 1 minute 42 seconds, water discharge 0.18 liters/second and the water level is dangerous tool sound with a time of 1 minute 24 seconds water discharge 0.19 liters / second. This laboratory-scale flood detection tool can be a means of educating the community to minimize the impact of a flood disaster that can be understood by the community.
PENERAPAN UNDERDRAIN BOX STORAGE UNTUK PENANGGULANGAN GENANGAN DAN PENINGKATKAN RESAPAN AIR DI KELURAHAN PENURUNAN Jhordi Hendarwan; Meilani Belladona; Tri Sefrus
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.199-206

Abstract

Decreased Village has an area of 86 hectares with a population of 4946 people. The land located around this area has undergone rapid land use changes since the establishment of the largest shopping center in Bengkulu Province, namely Bengkulu Indah Mall (BIM). The construction of buildings in this area does not pay attention to the waste water disposal system and rainwater drainage, so that during the rainy season this area, especially in front of the BIM, often experiences puddles. Underdrain Box Storage is one of the eco-drainage concepts that can be developed for dense settlements (urban settlements). The technical concept of drainage put forward is that rainwater puddles are channeled through an open channel where at the bottom is given holes arranged in a series along the channel as a function to fill the storage space, where the bottom of the reservoir is directly connected to the soil. The problem in this research is how to apply Underdrain Box Storage to overcome inundation and increase water infiltration in Decrease Village. The purpose of this study was to design an Underdrain Box Storage design to overcome puddles and water infiltration in Decreased Village. The method used in this research is the collection of primary and secondary data as well as analyzing the data, namely hydrological analysis and hydraulics analysis for overcoming inundation and increasing water absorption. The results of the study showed that the planned flood discharge was around 1.2421 m3/s for 10 years. The time needed to absorb water in the Underdrain Box Storage for 44.44 minutes is 0.7997 m3/s, with an infiltration speed of 0.0375 m/s. Underdrain Box Storage dimensions are designs that have a shape above the dimensions of the storage box with a length (B1) of 0.6 m and a height (H1) of 0.3 m, for the dimensions of a storage box accomodation with a length (B2) of 0.8 m and a height (H2) 0.6 m.
Analisis SWOT Potensi Pengembangan Bandar Udara Fatmawati Soekarno Menuju Bandar Udara Internasional Aprizon, Windra; Sefrus, Tri; Pujiastuti, Elly Tri
WARTA ARDHIA Vol 50, No 1 (2024)
Publisher : Badan Kebijakan Transportasi, Kementerian Perhubungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25104/wa.v50i1.525.41-46

Abstract

Bandar Udara Fatmawati Soekarno Bengkulu menunjukkan peningkatan jumlah penumpang setelah pandemi, dari 26.984 penumpang pada tahun 2022 menjadi 30.250 penumpang pada tahun 2023. Penelitian ini bertujuan untuk mengidentifikasi potensi pengembangan bandara agar dapat menjadi bandara internasional guna memenuhi kebutuhan masyarakat yang terus meningkat serta mendukung pertumbuhan ekonomi dan sektor pariwisata. Metode penelitian menggunakan analisis SWOT dengan memisahkan data Internal Factor Analysis Summary (IFAS) dan External Factor Analysis Summary (EFAS). Data penelitian dikumpulkan melalui observasi, studi literatur, serta wawancara dengan pihak terkait. Hasil analisis menunjukkan bahwa posisi relatif bandara berada pada koordinat (0,54 ; 0,1), yang menempatkannya di kuadran I. Strategi yang disarankan adalah memaksimalkan kekuatan untuk memanfaatkan peluang melalui penerapan kebijakan agresif yang berorientasi pada pertumbuhan (growth). Penerapan strategi ini diharapkan dapat meningkatkan kualitas layanan dan mempercepat pengembangan bandara menjadi bandara internasional.
Analisis SWOT Potensi Pengembangan Bandar Udara Fatmawati Soekarno Menuju Bandar Udara Internasional Aprizon, Windra; Sefrus, Tri; Pujiastuti, Elly Tri
WARTA ARDHIA Vol. 50 No. 1 (2024)
Publisher : Sekretariat Badan Kebijakan Transportasi, Kementerian Perhubungan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25104/wa.v50i1.525.41-46

Abstract

Bandar Udara Fatmawati Soekarno Bengkulu menunjukkan peningkatan jumlah penumpang setelah pandemi, dari 26.984 penumpang pada tahun 2022 menjadi 30.250 penumpang pada tahun 2023. Penelitian ini bertujuan untuk mengidentifikasi potensi pengembangan bandara agar dapat menjadi bandara internasional guna memenuhi kebutuhan masyarakat yang terus meningkat serta mendukung pertumbuhan ekonomi dan sektor pariwisata. Metode penelitian menggunakan analisis SWOT dengan memisahkan data Internal Factor Analysis Summary (IFAS) dan External Factor Analysis Summary (EFAS). Data penelitian dikumpulkan melalui observasi, studi literatur, serta wawancara dengan pihak terkait. Hasil analisis menunjukkan bahwa posisi relatif bandara berada pada koordinat (0,54 ; 0,1), yang menempatkannya di kuadran I. Strategi yang disarankan adalah memaksimalkan kekuatan untuk memanfaatkan peluang melalui penerapan kebijakan agresif yang berorientasi pada pertumbuhan (growth). Penerapan strategi ini diharapkan dapat meningkatkan kualitas layanan dan mempercepat pengembangan bandara menjadi bandara internasional.
Pengaruh Pengunaan Filler Limbah Las Karbit dalam Campuran Asphalt Concrete Wearing Course (Ac-Wc) Gusti, Aldila Anugrah; Sefrus, Tri; Dwiantoro, Edito
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 3 (2025): Agustus - October
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i3.3025

Abstract

Jalan merupakan prasarana yang sangat penting dalam mendukung laju perekonomian di Indonesia sebagai negara yang berkembang indonesia sangat membutuhkan kualitas dan juga kuantitas jalan untuk memenuhi kebutuhan seluruh masyarakat Indonesia untuk melakukan berbagai seluruh jenis kegiatan ekonomi baik itu aksebilitas ataupun barang dan jasa.dalam penelitian ini merupakan eksperimen untuk mengetahui hasil uji marshall pada perbandingan krakteristik limbah las karbit dengan persentase 0% - 100%. Dari hasil pengujian marshall, Kadar Aspal Optimum (KAO) yaitu 5% pada campuran AC-WC Asphalt Concrete-Wearing Course dengan penggunaan Abu batu sehingga dapat disimpulkan bahwa memiliki nilai VMA 16,55%, VFA 73,4%, VIM 4,4%, Stabilitas 2359,9 kg, Flow 3.2 mm, dan Marshall Quotient 901,0 kg. Hasil nilai uji marhsall untuk kadar penambahan Optimum (KPO) dengan menggunakan limbah las karbit yaitu VMA sebesar 15,7%, Nilai VFA 78,1%, VIM 3,4% Nilai Stabilitas 2014,7kg, Nilai Flow 3,0 kg, dan nilai MQ sebesar 798,5 kg, Penganti limbah las karbit juga dapat meningkatkan nilai (VFA) mengalami peningkatan sebesar 78,1%% yang tidak terlalu sigifikan dibanding marshall standar sedangkan untuk nilai stabilitasnya menurun sebesar 2014,7% yang terlalu signifikan di bandingan dengan nilai stabilitas KAO, dengan mememnuhi standar bina marga 2018.
Co-Authors Aprizon, Windra Belladona, Meilani Cristy Pujianti andriyani Dewanti . Dewanti ., Dewanti Dwiantoro, Edito Edito Dwi Antoro Gusti, Aldila Anugrah Hendy Ramadana Putra Jhordi Hendarwan Muchammad Zaenal Muttaqin Muhammad Subair Muhammad Zudhy Irawan, Muhammad Zudhy Muttaqin, Muchammad Zaenal Oscar Hidayat Pujiastuti, Elly Tri Sigit Priyanto Sigit Priyanto Subair, Muhammad Susetyo, Cahyono Yoggi Hendra Safutra Yori Herwangi, Yori