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All Journal Jurnal Spektran Research Report - Engineering Science Jurnal Teknik Sipil Rekayasa Sipil Journal of the Civil Engineering Forum JURNAL TEKNIK HIDRAULIK JURNAL SUMBER DAYA AIR CSID Journal of Infrastructure Development (CSID-JID) Journal of the Civil Engineering Forum
Doddi Yudianto
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Katolik Parahyangan
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Environmental Science Social Sciences Transportation

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PEMODELAN NUMERIK 1-D ADVEKSI-DISPERSI UNTUK MEMPREDIKSI KONSTRENTASI POLUTAN DALAM BADAN SUNGAI Prasetya, Adhita; Yudianto, Doddi; Guan, Yiquing
Jurnal Teknik Sipil Vol 14, No 3 (2017)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.819 KB) | DOI: 10.24002/jts.v14i3.1983

Abstract

Abstrak: Peran rekayasa Hidrologi dan Hidrolik dalam pengelolaan lingkungan menjadi amat penting dalam mengatasi permasalahan-permasalahan polutan di area perairan. Seperti telah kita ketahui bersama, pengujian kualitas air sungai membutuhkan biaya dan waktu yang cukup lama, selain itu untuk memperoleh informasi areal terpapar polutan tertentu sering kali mengalami kendala. Studi ini mencoba untuk mengatasi beberapa keterbatasan tersebut diatas dengan cara membuat pemodelan numeric 1-D adveksi-dispersi yang bertujuan untuk memprediksi konsenta-si polutan dalam badan sungai. Model numerik yang dikembangkan bertujuan untuk mempred-iksi transportasi massal kontaminan di badan sungai. Dalam melakukan analisa, metode yang digunakan adalah analisis 1 dimensi dan metode numerik menggunakan skema lax-wendroff . selain itu untuk memudahkan dalam pemodelan, dibuat model sungai rectangular dengan lebar saluran (B) 8 m, tinggi muka air (H) =0,4 m, kemiringan sungai ( so) = 0.00005, dan panjang saluran (L) = 150 km, serta dasar saluran adalah beton. Untuk mesimulasikan konsentrasi menggunakan finite difference schemes pada jarak 50 s.d 100 km, software yang digunakan ada-lah MATLAB serta menggunakan skema Lax-Wendroff (LW) untuk memecahkan Persamaan 1D Adveksi-Dispersi. Dari hasil pemodelan dapat disimpulkan terjadi pelebaran kurva konsen-trasi polutan akibat pengaruh dari hidrolika. Pada saat konsentrasi polutan tertinggi berada 50 km dari lokasi pembuangan limbah, area terpapar polutan 40 – 60 km, sedangkan pada jarak 100 km dari lokasi pembuangan limbah, area yang terpapar oleh polutan 80 – 120 km .
Water Quality Modelling to Predict BOD And TP Loads of Duriangkang Dam Wimordi, Calvin; Yudianto, Doddi; Yiqing, Guan
CSID Journal of Infrastructure Development Vol 3, No 2 (2020)
Publisher : Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32783/csid-jid.v3i2.145

Abstract

Water quality modeling is highly needed to predict and to identify the water quality alteration and distribution along the water body. Besides that, water quality modeling also can be used to predict the pollutant load if there is no data recording. The water quality analysis simulation program (WASP), will be used in this study to forecast domestic load, in particular BOD and TP loads in Duriangkang Dam. Initially, the estimated load is obtained based on the previous study that being extended by using a linear regression line. After that, the estimated load is calibrated according to the results of the water test. The WASP model is simulated for a period of 3 years from 1 January 2016 to 31 December 2018 and is divided into 2 processes, namely calibration and verification process. The calibration process is carried out in the first two years, followed by the verification process for the remainder of the year. The calibration and verification process are measured by objective functions, namely RMSE and the percentage difference. According to the simulation results, the objective functions provide satisfying findings, which means that the predicted BOD and TP loads for Duriangkang Dam during that time are accurate.
Aplikasi Teknologi Bakteri Dalam Pekerjaan Restorasi Sungai Xuxi, Kota Wuxi, China Doddi Yudianto; Xie Yuebo
JURNAL TEKNIK HIDRAULIK Vol 1, No 1 (2010): Jurnal Teknik Hidraulik
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1587.283 KB) | DOI: 10.32679/jth.v1i1.225

Abstract

Considering previous successful applications of biological treatment in several restoration works in China,this study is aimed to describe the complete processes and results derived from the application of bacterialtechnology in restoring urban river. Here the Xuxi River in Wuxi City was selected as an example of casestudy.Basedontheresultsobtained, itisfoundthat this bacterial technologyisabletoprovidebroaderviewsof river restoration workfor urban area. Besides it results better water quality,the water is now clearer andcontains aquatic life. Although a considerable increase of concentration of total phosphorus, total nitrogen,and ammonium nitrogen may have enhanced to Algae problem during the treatment, but the final resultsshow good achievement. Detail laboratory tests and mathematical model development are necessary tooptimize the implementation.
PENENTUAN POLA OPERASI PINTU PELIMPAH DALAM RANGKA PENGENDALIAN BANJIR BENDUNGAN DELINGAN, JAWA TENGAH Ariberto Jonathan; Doddi Yudianto; S Sanjaya
JURNAL TEKNIK HIDRAULIK Vol 12, No 2 (2021): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v12i2.662

Abstract

A spillway is one of many important components of a dam, which is operated to prevent the dam from overtopping. Spillway with gate structures requires to have a good operation pattern by considering a minimum critical height and outflow discharge to prevent any flooding events in the downstream part of the spillway channel. The case study in this research is the Delingan Dam which has two ogee spillways, four main sluice gates and four additional sluice gates. Located in Karanganyar District, West Java, Delingan Dam is considered as a vast infrastructure which is potentially threatening if the spillway’s operation is not optimal. This study aims to analyze the spillway gate operations’ pattern of Delingan Dam in order to control the flooding event. The methodology used in this study is flood routing by utilizing several scenarios in order to obtain the optimal simulation results. Five scenarios that were simulated on the designated flood discharge have various combinations on the number of gates and their opening, as well as the time in which the operation started. The results show that the operation only using ogee spillway still meets the criteria for minimum critical height and maximum allowable discharge for return period of 25, 50, and 100 year.As the discharge with 1000 year return period, half of PMF, and PMF,the recommended operation is, foremost, to occupy the main gate in which results in the peak outflow discharge of 23.65 m3/s, 62.4 m3/s, and 140.9 m3/s, with the minimum critical height of 1.45 m, 1.41 m, and 1.35 m, respectively. However, this operation is not adequate for the half of PMF, and the PMF discharge, since the capacity in the spillway channel is estimated about 24.7 m3/s.Keywords: spillway, flood control, spillway gate operation, the delingan dam
Estimasi Dinamik Jangka Panjang Terhadap Kualitas Air Untuk Pengendalian Eutrofikasi Pada Waduk Jatiluhur EKo Winar Irianto; RW Triweko; Doddi Yudianto
JURNAL TEKNIK HIDRAULIK Vol 3, No 1 (2012): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1121.836 KB) | DOI: 10.32679/jth.v3i1.257

Abstract

Sistem Pendukung Keputusan Untuk Perencanaan Alokasi Air Secara Partisipatoris Pada Suatu Wilayah Sungai Waluyo Hatmoko; R. Wahyudi Triweko; Doddi Yudianto
JURNAL TEKNIK HIDRAULIK Vol 3, No 1 (2012): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.314 KB) | DOI: 10.32679/jth.v3i1.263

Abstract

STUDI KELAYAKAN WADUK CIKAWARI 2A DAN 5A DALAM RANGKA PEMENUHAN KEBUTUHAN AIR KOTA BANDUNG Cleon Christopher; Doddi Yudianto; Albert Wicaksono
JURNAL TEKNIK HIDRAULIK Vol 12, No 1 (2021): JURNAL TEKNIK HIDRAULIK
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jth.v12i1.654

Abstract

The water need in the Northern area of Bandung City was predicted to be 2.49 m3/s in 2040. The government responded to this issue by planning the construction of several reservoirs in the Cikapundung watershed. A previous study suggested three potential locations, i.e., Cikukang 2, Cikawari 2A, and Cikawari 5A reservoir. Since Cikawari 2A and Cikawari 5A are located on the same Cikawari river, three construction alternatives, i.e., a single reservoir of Cikawari 2A, a single reservoir of Cikawari 5A, and cascade reservoir Cikawari 2A+5A are proposed. Each alternative has its own advantages and limitations, thus evaluation of the best construction alternative needs to be carried out. The evaluation was conducted based on their reliable service in supplying water to Bandung City. This evaluation was analyzed by comparing the projected water demand following population growth and water availability derived from the rainfall-runoff model, NRECA. The analysis was conducted using two variations of dam height and reservoir capacity for each alternative. Based on the analysis results, the single reservoir of Cikawari 2A with 45 m of dam’s height was chosen as the most suitable alternative. It can supply 0.56 m3/s of water and provide water for 30.4% of the citizens in 2020, and decrease to 30.15% in 2040. However, it was also found that the reservoir could only supply 0.44 m3/s of water during the dry period. These results showed that the construction of the reservoir itself could not meet the total water demand. Therefore, another alternative is required to closing the gap in water demand.Keywords: Cikapundung watershed, water supply, Cikawari reservoir, reservoir simulation, service reliability
Pengembangan Kriteria Status Mutu Ekosistem Danau Sebagai Bagian Dari Indikator Pengelolaan Terpadu Wilayah Sungai Eko Winar Irianto; Robertus Wahyudi Triweko; Doddi Yudianto
JURNAL TEKNIK HIDRAULIK Vol 1, No 1 (2010): Jurnal Teknik Hidraulik
Publisher : Pusat Litbang Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.653 KB) | DOI: 10.32679/jth.v1i1.227

Abstract

High rate of pollution on the watershed has impacted to deteriorate water quality reservoirs. Officially,Quality Status of Reservoir Ecosystem has not been established yet.So, this study describes theaccomplishment of integrated watershed management using Quality Status of Lake Ecosystem criteria(SMED) formulated by ministry of environment.The application of the criteria to Saguling and Sutamireservoirs datas shows that quality status of the reservoir ecosystems are in threat conditions.In order toapply the SMED criteria for assessment of quality ecosystem in reservoir, the advance experiments are stillneededmainlyfortheadditionalindicatorsasfollowing: 1)integrationbluealgaeandbiodiversityindicatorwith biodiversity index; 2) suitability of land erosion indicator connected with reservoir design of erosionrate; 3) shifting of siltation lake indicatorsiltation reservoir indicator in relation with the percentage ofdead storage volume; 4) integration hydroelectric power and water resources exploitation associated withthe hidrological reservoir and water balance; 5) suitability of fish cage calculation in reservoir, 6) suitability ofwaterqualityindicatorrelatedwithwaterqualitystandard;7)additionofcorrosivityindexandqualityofbottomsedimentinreservoir.TofacilitateapplytheSMEDfortheassessmentofreservoirecosystem.
Analysis of Mukakuning and Duriangkang Reservoir’s Capacity to Fulfill The Raw Water Demand of Batam City Willy Aulia; Robertus Wahyudi Triweko; Bambang Adi Riyanto; Wanny K Adidarma; Doddi Yudianto
JURNAL SUMBER DAYA AIR Vol 16, No 2 (2020)
Publisher : Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v16i2.690

Abstract

Batam City is the economic center of Riau Province with a predicted population of 1.8 million people in 2025. To support economic development, Batam City needs a reliable supply of raw water. Mukakuning and Duriangkang reservoirs, which are cascade reservoirs, are the largest contributors to raw water supply in Batam City. This study aims to determine the maximum capacity of the two reservoirs to meet current and future raw water demand. Discharge in the watershed is calculated using daily HEC-HMS model calibrated using Duriangkang Reservoir water level data. The storage of Mukakuning and Duriangkang Reservoir are 6.3 and 106.1 million m3 respectively, equivalent to 39% and 77% of the runoff volume of each watershed, classifying the two reservoirs in the multi-year category. Using current operation, the two reservoirs can supply up to 3.24 m3/s at 100% reliability, compared to existing capacity of 3.1 m3/s. The water loss is dominated by evaporation which reaches 32.6 million m3/year while spilled water is only 8.3 million m3/year. At 95% reliability, the reservoirs are almost at maximum capacity and able to supply 4.03 m3/s of raw water with the spilled water is only 0.4 million m3/year. Efforts to increase capacity by increasing normal water levels are not effective and lead to dam overtopping in PMF condition. More effective way to increase water supply can be obtained by changing operating patterns. If the reservoir is in dry condition, determined by predicted SPI, the water supply is limited so that the discharge can be utilized for a longer period.
EVALUASI KAPASITAS TAMPUNGAN DAN SALURAN PEMBUANG PASCA KERUNTUHAN TANGGUL KOLAM TAMPUNGAN DI KAWASAN PERUMAHAN Albert Wicaksono; Doddi Yudianto
Research Report - Engineering Science Vol. 2 (2013)
Publisher : Universitas Katolik Parahyangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6723.976 KB)

Abstract

Kolam retensi dengan kapasitas tampungan sebesar 80.000 m3 dan luas total permukaan mencapai1,5 ha digunakan oleh sebuah kawasan perumahan di Bandar Lampung sebagai pengendali banjirsaat terjadi hujan dengan intensitas yang tinggi. Pada 24 Januari 2013, tanggul di sekitar kolamretensi mengalami keruntuhan sehingga air yang tertampung di dalam kolam keluar secara tidakterkendali dan mengakibatkan genangan setinggi 1 m di hilir kawasan perumahan tersebut.Dilatarbelakangi kondisi tersebut, studi ini bertujuan untuk melakukan evaluasi terhadapkemampuan dari kolam retensi untuk mengendalikan limpasan air yang masuk ke dalam kolamtersebut. Analisis akan dilakukan menggunakan bantuan perangkat lunak HEC-HMS. Berdasarkanhasil simulasi, diketahui bahwa kapasitas kolam retensi saat ini hanya mampu untuk menampungvolume limpasan air akibat banjir hingga periode ulang 5 tahun. Untuk meningkatkan kemampuandari kolam retensi tersebut, diperlukan suatu kolam retensi tambahan di bagian hulu untukmenantisipasi terjadinya debit banjir dengan periode ulang yang lebih tinggi. Selain itu, kondisisaluran buang yang ada saat ini dinilai tidak mampu untuk mengalirkan air keluar dari kolam retensidengan cukup cepat sehingga terjadi penumpukkan volume air di dalam kolam. Untukmengatasinya, diperlukan dua buah saluran tambahan berupa gorong-gorong dengan diameter 1atau 1,5 m yang untuk mengurangi tinggi muka air di dalam kolam. Analisis lebih lanjutmenunjukkan bahwa kombinasi dari penambahan kolam baru dengan kapasitas 432.000 m3 danpenambahan dua buah saluran buang berdiameter 1 m, dapat meningkatkan kapasitas kolam retensieksisting hingga dapat menampung volume air akibat banjir dengan periode ulang 100 tahun.Tentunya penambahan saluran buang pada kolam retensi perlu diiringi dengan normalisasi sungaiatau pembuatan tanggul di hilir kolam retensi untuk mencegah terjadinya banjir pada daerah hilir.Kata Kunci: pengendalian banjir, kolam retensi, HEC-HMS
Co-Authors Adhita Prasetya Albert Wicaksono Albert Wicaksono Andreas F V Roy Angela Grace Ariberto Jonathan Bambang Adi Riyanto Bambang Adi Riyanto Bobby Minola Ginting Cleon Christopher EKo Winar Irianto Farrell Wiguna Finna Fitriana Finna Fitriana Finna Fitriana Guan, Yiquing Jonathan Wijaya Prasetya, Adhita Prilla Lidyana R. Wahyudi Triweko Rahmat Sudiana Robertus Wahyudi Triweko RW Triweko S Sanjaya S Sanjaya Steven Kent Theo Senjaya Waluyo Hatmoko Wanny K Adidarma Wanny K. Adidarma Willy Aulia Willy Willy Wimordi, Calvin Xie Yuebo Xie Yuebo Xie Yuebo Yiqing, Guan Yiquing Guan Yong Chan Seo Zhang Xiuju