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All Journal TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL Rekayasa Sipil Teras Jurnal RACIC : Rab Construction Research AGREGAT Jurnal Penelitian Pendidikan IPA (JPPIPA) Syntax Literate: Jurnal Ilmiah Indonesia BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan JURNAL TEKNIK HIDRAULIK JURNAL REKAYASA Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi International Journal of Engineering, Science and Information Technology International Journal of Social Service and Research Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Journal of Civil Engineering and Technology Sciences Eduvest - Journal of Universal Studies Jurnal Profesi Insinyur Indonesia Jurnal Teknik Sipil Advance Sustainable Science, Engineering and Technology (ASSET)
Dyah Ari Wulandari
Jurusan Teknik Sipil FT. UNDIP Jl. Prof. Soedarto SH. Tembalang, Semarang 50275
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Social Sciences Transportation Other

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Penentuan Initial Elevation untuk Mendukung Operasi Early Release Bendungan Sadawarna Wahyudi, Andri Puji; Wulandari, Dyah Ari; Sriyana, Ignatius
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 30, Nomor 1, JULI 2024
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v30i1.62293

Abstract

Modifications of Sadawarna Dam include the addition of a sluice gate that is placed on the right side of the spillway which functions as an early release facility along with an intake to lower the reservoir water level before the flood comes. Implementation of early release on reservoir routing requires an initial elevation that is different from the initial elevation in general. The aim of this research is to determine the new initial elevation to support early release operations for the Sadawarna Reservoir. This research was conducted by calculating return flood discharge and flood routing in reservoir with 3 (three) scenarios of initial elevation. The method used for analysis of return flood discharge is SCS (Soil Conservation Service). The reservoir routing method uses level pool routing with the HEC-HMS application. Initial elevation is determined by 3 (three) scenarios that started from initial elevation +75,25 masl, +77,00 masl, and +78,50 masl. The results of 3 (three) scenarios showed that the optimal initial elevation that can be used in early release operations is at an elevation of +77,00 masl. The results of the reservoir flood routing simulation with initial elevation resulted reduction flood discharge up to return period of 50 years and resulted in the fastest reservoir water level recovery
Uji Keandalan Teori Empiris Dalam Memprediksi Laju Sedimentasi Waduk (Studi Kasus Sedimentasi Waduk Salomekko, Sulawesi Selatan) Wahyudi, Wahyudi; Wulandari, Dyah Ari; Suripin, Suripin
Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan Vol. 18, No. 6 : Al Qalam (November 2024)
Publisher : Sekolah Tinggi Ilmu Al-Qur'an (STIQ) Amuntai Kalimantan Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35931/aq.v18i6.3764

Abstract

Bendungan merupakan infrastruktur sumber daya air yang berfungsi membendung aliran air sungai untuk dialirkan secara teratur guna memenuhi berbagai kebutuhan air untuk pertanian, air minum, pembangkit listrik tenaga air dan konservasi. Salah satu faktor yang menentukan dalam perencanaan bendungan adalah adanya volume sedimen yang akan tertampung di waduk dalam kurun waktu umur waduk, dimana elevasi bangunan pengambilan akan ditempatkan di atas elevasi kumulasi volume sedimen di waduk, atau yang dikenal dengan tanpungan mati (dead storage). Permasalahan yang terjadi pada bendungan yang telah dibangun di Indonesia adalah terjadi gap yang besar antara laju sedimentasi waduk rencana dengan realisasi hasil observasi yang dilakukan dengan pengukuran batimetri waduk. Tujuan penelitian adalah untuk menguji keandalan metode empiris USLE yang digunakan secara luas untuk perencanaan laju sedimentasi waduk di Indonesia, terhadap realisasi sedimen yang mengendap di waduk. Penelitian diadakan di bendungan Salomekko, yaitu suatu bendungan urugan yang terletak di Propinsi Sulawesi Selatan dengan luas DTA 12,92 Km2 dan mulai beroperasi  sejak ahun 1998. Hasil uji keandalan laju sedimentasi waduk teoritis terhadap hasil observasi menunjukkan nilai yang rendah, yaitu sebesar 41,92%. Kondisi tersebut mengakibatkan rencana umur operasi waduk berdasarkan faktor sedimentasi tidak akan tercapai.  Berdasarkan hasil penelitian ini disimpulkan bahwa rumus empiris USLE perlu dilakukan modifikasi pada rumus faktor kemiringan lereng (LS) yang sesuai dengan kondisi kepulauan Indonesia yang berkontur terjal, sementara rumus empiris USLE dibuat dengan sampel Daerah Tangkapan Air yang landai.
PENGARUH KEGIATAN KONSERVASI LAHAN PADA KEGIATAN CSWMDR (COUNTERMEASURE FOR SEDIMENT IN WONOGIRI MULTIPURPOSE DAM RESERVOIR) TERHADAP LAJU EROSI LAHAN DI DAERAH TANGKAPAN AIR (DTA) WADUK WONOGIRI Swastika, Dian; Wulandari, Dyah Ari; Sriyana; Maulana, Rifki
JURNAL REKAYASA Vol. 13 No. 1 (2023): Jurnal REKAYASA
Publisher : Fakultas Teknik Sipil dan Perencanaan. Universitas Bung Hatta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37037/jrftsp.v13i1.138

Abstract

Sedimentasi merupakan salah satu permasalahan utama dalam pengoperasian dan pemeliharaan waduk karena dapat menyebabkan penurunan fungsi waduk, demikian juga yang terjadi di Waduk Wonogiri yng telah beroperasi sejak Tahun 1982. JICA Study Team pada tahun 2007 telah menghitung besaran produksi erosi tahunan on farm (lahan) dan off farm (bangunan fisik) yang terjadi di seluruh DAS yang mengalir masuk ke Waduk Serbaguna Wonogiri sebesar 17.279 juta ton per tahun. JICA Study Team melaksanakan kegiatan fisik konservasi Daerah Aliran Sungai (DAS) berbasis masyarakat dalam rangka pelaksanaan Program Countermeasure for Sediment in Wonogiri Multipurpose Dam Reservoir (CSWMDR) yang dibagi menjadi 2 program kerja, yaitu JICA Slice I (pada Tahun 2015) dan JICA Slice II bertujuan untuk mendapatkan laju erosi dan penurunan erosi dengan capaian sesuai dengan target yang telah ditetapkan dalam Implementation Plan.Tujuan dari penelitian ini adalah menganalisis laju erosi pada present condition dan future condition serta penurunan erosi lahan pada kegiatan konservasi CSWMDR penanggulangan sedimentasi di Waduk Wonogiri guna mendukung program kerja JICA Slice II menggunakan metode USLE serta bantuan Software ArcGIS dan tools tambahan Spatial Analyst dan Model Builder. Berdasarkan hasil analisis didapatkan jumlah laju erosi di 10 desa sasaran pada present condition sebesar 158.809,21 m3/tahun, sedangkan jumlah laju erosi pada future condition sebesar 110.354,92 m3/tahun, dan jumlah penurunan laju erosi sebesar 16.268,27 m3/tahun.
Impact of Monitoring Land Use Changes to Anticipate Management of Erosion Rates in the Brantas Hulu Watershed Pratama, Alfyan Amar; Suripin, Suripin; Wulandari, Dyah Ari; Marupa, Ivan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.825-837

Abstract

Land use change in river basins is an important issue for policymakers. In this case, it is essential to carry out comprehensive monitoring for decision-making. Land use monitoring must be carried out continuously so that changes that occur over a certain period can continue to be monitored. In this case, the Brantas Hulu watershed includes Batu City, Malang City, and Malang Regency. This river basin is considered critical due to massive land use changes. This condition directly encourages an increase in sedimentation rate in rivers and reservoirs. This research aims to obtain the results of monitoring land use changes and determine the handling of erosion rates by monitoring land use changes in the Brantas Hulu watershed. The method used to determine the spatial characteristics of soil erosion in the Upper Brantas watershed uses the Universal Soil Losses Equation (USLE) method. The research results show that erosion conditions in the Brantas Hulu watershed are dominated by class I/very light erosion hazards (36.43%). ), class II/light (22.35%), class V/very heavy (16.07%), class III/moderate (13.09%), and class IV/heavy (12.05%). The proposed control measures for erosion sites include structural and non-structural approaches.
Analysis of Initial Impoundment Using the F.J. Mock Flow Discharge Model at Pamukkulu Dam Nugraha, Hendy Adiyat; Wulandari, Dyah Ari; Suharyanto, Suharyanto
TEKNIK Vol 46, No 2 (2025) April 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i2.67500

Abstract

The construction of a dam consists of several stages, including construction preparation, construction planning, construction execution, and initial reservoir impoundment. This study aims to determine the duration of the initial impoundment of the Pamukkulu Reservoir during dry, normal, and wet years using the F.J. Mock water availability method. Water losses in this study include reservoir water release through the bottom outlet to meet irrigation water demand at a rate of 0.3 m³/s and reservoir evaporation. The calculation of the impoundment duration is based on the monthly accumulation of volume until reaching the total storage volume of 82.57 million m³ at a normal water level elevation of +126.00 meters. The analysis results indicate that the duration of the initial impoundment of the Pamukkulu Reservoir is 11.16 months (335 days) in a dry year with an inflow reliability of 31.81%, 8.66 months (260 days) in a normal year with an inflow reliability of 63.63%, and 7.63 months (229 days) in a wet year with an inflow reliability of 77.27%. The study concludes that the Pamukkulu Dam will reach its normal water level storage volume in December (first period) during a wet year classification.
Analysis of Water Availability at Margatiga Dam Setyawanto, Ega Rizky; Wulandari, Dyah Ari
TEKNIK Vol 46, No 2 (2025) April 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i2.67856

Abstract

A dam is a structural construction built to retain or store water and serves to distribute water for raw water supply, irrigation, and hydroelectric power generation. Margatiga Dam is the third and most downstream dam in the Sekampung River Cascade Dam System in Lampung Province. It functions to supply irrigation and raw water as well as to control floods. To meet water demand, an analysis of water availability is necessary to determine the difference between water availability and demand. This study aims to determine the water availability discharge during wet, normal, and dry years at Margatiga Dam. The study uses satellite rainfall data calibrated with ground station rainfall data from 2001 to 2023. The methods used include satellite rainfall data correction, potential evapotranspiration analysis using the modified Penman method, flow discharge analysis using the F.J. Mock method, and reliable discharge analysis using the Weibull method. The results show that the water availability discharge at Margatiga Dam is 13.96 m³/s in a wet year, 10.34 m³/s in a normal year, and 8.13 m³/s in a dry year.
Evaluation of Soil Water Assessment Tool (SWAT) Model Accuracy in Estimating Erosion and Sedimentation Rates in the Sutami Reservoir Watershed Wijaya, Hendri; Wulandari, Dyah Ari; Suripin, Suripin
TEKNIK Vol 46, No 2 (2025) April 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v46i2.67929

Abstract

The storage capacity of the reservoir is affected by poor management of the Watershed (DTA), which in turn influences erosion and sedimentation levels. In 1972, the erosion rate at Sutami Reservoir was 0,18 mm/year, rising to 1.44 mm/year by 2022. This data reflects a significant increase in the erosion rate within the Sutami Reservoir watershed, highlighting the need for effective watershed management modeling. The Soil and Water Assessment Tool (SWAT) is commonly used for watershed management assessment. This study aims to predict erosion and sedimentation rates using SWAT and evaluate the accuracy of its simulations through calibration and validation. The simulation results from SWAT show that the total erosion rate is 5,280.45 tons/ha/year, with a total sedimentation of 11,662,851.94 tons/year. Additionally, These results were compared with an analysis using the USLE method, which indicated an erosion rate of 5,178.98 tons/ha/year and sedimentation of 11,060,798.14 tons/year. The comparison of both methods showed similar outcomes, suggesting that the SWAT model provides reasonably accurate predictions. The calibration process, using observed discharge data from 2022 and SWAT-simulated discharge, yielded an NSE value of 0.778, classified as 'very good.' On the other hand, validation using discharge data from 2023 and SWAT-simulated discharge yielded an NSE value of 0.660, classified as "good." Based on these results, the SWAT simulation offers a reliable representation of calibration and validation, making it an appropriate model for this study.
Optimizing Annual Cropping Patterns Using A multi-objective Approach to Maximize Income and Minimize Soil Erosion Faqih, Nasyiin; Suripin, Suripin; Wulandari, Dyah Ari; Qomaruddin, Mochammad
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.923

Abstract

This research investigates planting strategies to optimize productivity and conserve soil, focusing on potatoes and onions grown on erosion-prone land. Cross planting versus perpendicular plantings is evaluated using the MOORA (Multi-Objective Optimization Based on Ratio Analysis) method based on erosion rates, crop productivity, and economic outcomes. Meanwhile, data from six experimental contour and perpendicular planting plots are analyzed. The measurements for sediment and runoff are carried out using a dual-bucket system. After erosion calculations, the highest erosion rate was found in the contour planting of shallots at 385,65 tons/ha/year. At the same time, Potatoes planted perpendicular to the contour lines resulted in the lowest erosion rate, at only 114.51 tons/ha/year. Economic analysis, considering crop productivity and financial outcomes, revealed the highest productivity for potatoes planted perpendicular to the contour at Rp. 26.891 kg/ha, and the highest Income for the contour planting of potatoes at Rp. 215.133.360/ha. Optimization using the MOORA method, which calculates minimal erosion (cost) and maximal Income (benefit), yielded the highest value for potatoes planted along the contour at 0.409963. This was followed by perpendicular planting (0.075816) and shallots along the contour (0.067163). The MOORA method can provide optimal planting pattern recommendations by analyzing multiple criteria, including soil erosion and productivity, thereby offering practical guidance to farmers and policymakers in making more economically viable and sustainable planting decisions.
Smart Cropping Pattern: A Systematic Study of Sustainable Agriculture Optimization Model Mushthofa, Mushthofa; Suripin, Suripin; Wulandari, Dyah Ari; Qomaruddin, Mochammad
International Journal of Engineering, Science and Information Technology Vol 5, No 3 (2025)
Publisher : Malikussaleh University, Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v5i3.1132

Abstract

Irrigated agriculture accounts for more than 40% of global food production despite covering only about 20% of the world's agricultural land. However, climate change, water constraints, and multisectoral pressures on natural resources demand greater efficiency in the management of agricultural systems. One key strategy is determining optimal cropping patterns under conditions of water and land constraints. This study aims to review mathematical approaches, especially Linear Programming (LP)-based optimization models, in developing efficient and sustainable cropping pattern strategies. This study was conducted through a systematic literature review of 185 scientific articles from the Scopus and ScienceDirect databases in the period 2014–2025. The analysis was carried out using the PRISMA method and visualization of research trends through VOS viewer software. The results of the review indicate that optimization models, especially Linear Programs, have been widely used to develop data-based land and water allocation strategies, considering agronomic, economic, and environmental aspects. The increasing number of publications in the last decade reflects the urgency of this theme and the shift towards quantitative-based decision-making in agricultural systems. This study provides a conceptual and applicative basis for the development of sustainable planting strategies that are adaptive to environmental changes.
Comparative Analysis of Observed and Empirical Rainfall Distribution for Flood Hydrograph Modeling Afifah, Risdiana; Sri Sangkawati; Suripin; Dyah Ari Wulandari
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.2142

Abstract

Flood disasters in Indonesia are persistent challenges during the rainy season, primarily due to intense rainfall and inadequate flood control. This study evaluates hourly rainfall to characterize hydrology and predict flood discharge more accurately, benefiting water infrastructure planning. The research used modified Mononobe methods, observational data, and rainfall-runoff modeling, including HEC-HMS simulations with the SCS-CN unit hydrograph. Observed rainfall simulated a flood discharge of 779.7 m³/s, while empirical rainfall yielded 3623 m³/s, showing a 79.12% deviation. Comparing flood hydrographs, recorded rainfall data closely matched previous studies (R² = 0.94), unlike empirical rainfall (R² = 0.88). The study concludes that observed rainfall is highly effective for estimating flood runoff, accurately representing local characteristics. This method significantly aids planning and design of water resource infrastructure like dams, weirs, and bridges at the study site.
Co-Authors Afifah, Risdiana Ahmadi, Muhamamad Airlangga As'ad, Mohammad Bagus Wiratama Baihaqi, Fajar Andi bramantyo herawanto Desyta Ulfiana Dwi Kurniani Fahmi, Amir Hadziq Faqih, Nasyiin Firdazam, Firdazam H Hadiyanto Hari Nugroho Hary Budieny Hendri Wijaya, Hendri Ignatius Sriyana Kirno Kirno Limbong, Benson Jhon Ferry Marupa, Ivan Maulana, Muhammad Fuad Maulana, Rifki Melfina Roselyn Muliawati, Intan Muslimin, Muhammad Syahrizal Nugraha, Hendy Adiyat Pratama, Alfyan Amar Priyo Nugroho Parmantoro Propezite Nurhutama Mustain Qomaruddin, Mochammad Rarasati, Indang Dewi Rizal Isnanto, R Rudi Yuniarto Adi S. Suripin Salamun Salamun Saputra, Rizki Wahyu Sari, Yunitta Chandra Setyawanto, Ega Rizky Sri Sangkawati Sri Sangkawati Sachro Sri Sangkawati Sachro SRIYANA Sriyana Sriyana Sriyana, Ignatius Suharyanto Suharyanto SUHARYANTO SUHARYANTO Sukamta Suripin Susilowati Susilowati Swastika, Dian Taruna, Dwiva Anbiya Tri Pambudi, Tri Tristanto, Albert Nico Wahyudi Wahyudi Wahyudi, Andri Puji Wahyuningrum, Catur Ayu Zefri, Ricky Zelly Rinaldi, Zelly