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All Journal Jurnal Teknik Hidro Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Teknik Sipil Macca Jurnal Indonesia Sosial Teknologi
Riswandy Loly Paseru
Universitas Cenderawasih, Indonesia
Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation

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STUDI PENGARUH VARIASI DEBIT ALIRAN TERHADAP LAJU ANGKUTAN SEDIMEN DASAR PADA SUNGAI HARAPAN KABUPATEN JAYAPURA Riswandy Loly Paseru; Davy Ivan Robert Jansen; Kartika Sari
TEKNIK HIDRO Vol 15, No 1 (2022): Teknik Hidro Februari
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/th.v15i1.7648

Abstract

Besarnya transport sedimen yang terjadi di sungai harapan mengakibatkan alinyemen alur sungai berubah dari tahun ke tahun. Penelitian bertujuan mengetahui besarnya laju angkutan sedimen pada kondisi banjir rancang periode ulang. Analisa hidrologi untuk mengetahui debit sungai menggunakan metode hidrograf satuan sintesis Nakayasu berupa transformasi dari hujan rancang menjadi debit banjir rancang. Adapun analisis angkutan sedimen dilakukan dengan persamaan Einstein dan persamaan Meyer-Peter.Hasil analisis menunjukan besar debit banjir rancang periode ulang 2 hingga 100 tahun pada sungai Harapan berkisar antara 55,535 m3/s hingga 126,202 m3/s. Adapun laju angkutan sedimen metode Einstein untuk debit banjir periode ulang 2 hingga 100 tahun berkisar antara 11182,724 ton/tahun hingga 18696,496 ton/tahun. Sedangkan laju angkutan sedimen yang dihitung dengan metode Meyer-Peter untuk debit banjir rancang periode ulang 2 hingga 100 tahun berkisar antara 4814,128 ton/tahun hingga 8916,966 ton/tahun
Analisis Kebutuhan Air Irigasi di Lahan Pertanian Distrik Muara Tami, Kota Jayapura paseru, riswandy loly; Jansen, Davy Ivan Robert
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 10, No 1 (2024): Jurnal Teknik Sipil dan Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v10i1.9318

Abstract

Food is one of the most basic needs for human existence. Food is a source of maintaining a person's health. In order to raise the standard of public health, the populace must routinely eat fulfillment, a basic need. To attain food self-sufficiency, there must be a corresponding rise in food production with population growth. The supply of irrigation water for food production must be balanced with the growth in food output. Utilizing water resources from Tami Dam, agricultural land with an irrigation area of 5000 Ha is located in East Koya and West Koya, Muara Tami District, Jayapura City. In order to ensure that there is enough water for every acre of agricultural land that is irrigated by irrigation water channels, irrigation water needs must be taken into account. To address a number of water-related issues that could become uneven, the requirement for irrigation water for food production must be taken into account. The methodology employed in this study begins with the collection of climatological data, followed by an analysis of percolation rates, an analysis of evaporation using the Penman method, an analysis of evapotranspiration using the Modified Penman method, an analysis of the water requirements for soil processing, and an analysis of the water requirements for rice plants. According to the study's findings, the Muara Tami District's maximum evapotranspiration (Eto) demand over the previous ten years was 7.22 mm/day, or 0.84 ltr/sec/ha. The Muara Tami District has a mandated irrigation water requirement (DR) of 1.99 ltr/sec/ha.
EVALUASI KINERJA DAN RENCANA PERKUATAN RANGKA ATAP GEDUNG GEREJA KATEDRAL JAYAPURA PASCA GEMPA JAYAPURA 2023 Dualembang, Hery; Paseru, Riswandy Loly
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 11, No 1 (2025): JURNAL TEKNIK SIPIL DAN TEKNOLOGI KONSTRUKSI
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jts-utu.v11i1.12141

Abstract

The majority of areas in Indonesia, such as the city of Jayapura, are categorized within zones of moderate to high seismic intensity. On February 9, 2023, a 5.4 magnitude earthquake hit Jayapura, resulting in damage to various structures, including the Cathedral Church. Assessments conducted after the earthquake revealed structural issues, including cracks in walls and significant deflection in the roof truss system. From the structural assessment of the current roof, it was determined that eleven truss elements had failed, and every rafter showed deflection surpassing the permissible limit of L/240. The reinforcement involved steel elements and created a Cremona truss framework with WF 250.125.6.9 and UNP 75.40.5 profiles. Connections were established with chemical anchors and endplates between the steel profiles and 30×50 cm concrete beams, along with welded joints linking the steel elements. Evaluation results indicated that the enhanced structure achieved a secure performance level and complied with applicable, especially SNI 1729:2020 for structural steel design. This situation emphasizes the significance of evaluating buildings after an earthquake and implementing specific reinforcement strategies to regain structural stability and safety.Keywords— steel, performance evaluation, earthquake, reinforcement.
Analisis Erosi Menggunakan Sistem Informasi Geografis pada Daerah Aliran Sungai (DAS)Kamp Wolker Waena - Jayapura Widyastuti, Ira; Dualembang, Hery; Paseru, Riswandy Loly; Sanggamele, Herlina; Kombong , Eka Priska
Jurnal Teknik Sipil MACCA Vol. 10 No. 1 (2025): Jurnal Teknik Sipil MACCA (FEBRUARI 2025)
Publisher : Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/0e64gz27

Abstract

Erosi merupakan proses pelepasan dan pemindahan partikel tanah dari satu tempat ke tempat lain, yang umumnya disebabkan oleh aktivitas air hujan maupun angin. Dalam konteks Daerah Aliran Sungai (DAS), proses ini menyebabkan terjadinya akumulasi sedimen di saluran sungai yang berakibat pada penurunan kapasitas tampung aliran air. DAS Kamp Wolker menjadi wilayah yang strategis dalam aktivitas eksploitasi dan ekstraksi material karena keberadaan endapan sedimen serta batuan yang melimpah di sepanjang aliran sungai. Terbentuknya endapan tersebut erat kaitannya dengan proses erosi yang terus berlangsung di kawasan tersebut. Penelitian ini bertujuan untuk mengidentifikasi nilai laju erosi serta melakukan klasifikasi tingkat erosi di DAS Kamp Wolker dengan menggunakan pendekatan Universal Soil Loss Equation (USLE) yang diintegrasikan dengan analisis Sistem Informasi Geografis (SIG). Metode USLE melibatkan lima parameter utama, yaitu faktor erosivitas curah hujan (R), erodibilitas tanah (K), panjang dan kemiringan lereng (LS), pengelolaan tanaman (C), serta tindakan konservasi tanah (P). Melalui teknik overlay spasial, nilai erosi dihitung dan diklasifikasikan ke dalam lima kategori tingkat bahaya erosi, yaitu sangat ringan, ringan, sedang, berat, dan sangat berat. Hasil analisis menunjukkan bahwa rata-rata laju erosi di DAS Kamp Wolker mencapai 2,989 ton/ha/tahun. Distribusi kelas erosi di wilayah tersebut meliputi: sangat ringan (75,18%), ringan (10,96%), sedang (7,86%), berat (4,72%), dan sangat berat (1,32%). Temuan ini memberikan gambaran yang jelas mengenai kondisi kerentanan lahan terhadap erosi, yang dapat menjadi dasar dalam penyusunan strategi konservasi tanah dan pengelolaan DAS yang berkelanjutan.
Identification of the Position of Subsurface Aquifers and the Distribution of Groundwater Level Depth in Oksibil District, Pegunungan Bintang Regency Rorrong, Semuel; Nion, Wika Matana; Erwin, Erwin; Suliswanto, M.; Paseru, Riswandy Loly
Jurnal Indonesia Sosial Teknologi Vol. 5 No. 12 (2024): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v5i12.1363

Abstract

Groundwater is dynamic and influenced by natural factors, such as geology and geomorphology, which affect aquifer characteristics, groundwater movement, and surface morphology. This study aims to identify subsurface aquifer positions and the distribution of groundwater depth in Oksibil District, Pegunungan Bintang Regency. The research utilizes the resistivity geoelectric method with a Wenner configuration to determine lithology and aquifer characteristics. Measurements were conducted using the AIDU Golden Rod instrument, which analyzes natural electric fields. Results indicate the presence of pressurized aquifers at depths ranging from 125 to 300 meters with varying thicknesses of 20 to 85 meters. In contrast, free aquifers are primarily located at shallow depths (0–40 meters) in specific areas, such as Kabiding. The findings provide valuable insights into groundwater resource management and regional aquifer potential in Pegunungan Bintang Regency
Co-Authors Davy Ivan Robert Jansen Dualembang, Hery Eka Priska Kombong Erwin Erwin Kartika Sari Rorrong, Semuel Sanggamele, Herlina Suliswanto, M. widyastuti, ira Wika Matana Nion