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All Journal Jurnal Teknik Sipil Jurnal Rekayasa Sipil dan Desain
Dwi Joko Winarno
Jurusan Teknik Sipil Fakultas Teknik Universitas Lampung Jl. Sumantri Brojonegoro No.1 Bandar Lampung.
Civil Engineering, Building, Construction & Architecture Transportation

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Analisis Hidrologi Untuk Penentuan Debit Banjir Rancangan di Bendungan Way Besai Nivitha, Mutya; Winarno, Dwi Joko; Kusumastuti, Dyah Indriana
Jurnal Rekayasa Sipil dan Desain Vol 6, No 1 (2018): Edisi Maret 2018
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

AbstractResource which is often used for energy source is water as hydro power plant. One of hydro power plant in Lampung province is Way Besai Hydro Power Plant. Considering the importance of this hydro power plant for people, extreme things on the hydro power plant like flood, certainly not desirable. Hydrologic analysis required for get result that was flood design as action anticipation.This study was conducted in Way Besai watershed, Sumber Jaya, West of Lampung. The data required of this study are rainfall data from five stations, flow Way Besai data from 1986 to 2000, and daily rainfall data from two station.From frequency analysis, obtained design flood for the largest single data group return period of 2 years is return period 5 years 131,00 m3/s, return period 10 years 178,42 m3/s, return period 25 years 253,71 m3/s, return period 50 years 322,66 m3/s, return period 100 years 403,45 m3/s, and 499,81 m3/s for return period 200 years. From HEC-HMS, the flood design for return period 2 years sebesar 71,2 m3/s, return period 5 years 90,6 m3/s, return period 10 years 105,7 m3/s, return period 25 years 128,6 m3/s, return period 50 years 156,6 m3/s, return period 100 years 190,8 m3/s and 233,7 m3/s for return period 200 years. Based on calibration result used RMSE, obtained RMSE value is 3,12. Keywords: watershed, design flood, Way Besai, HEC-HMS
Analisis Hidrograf Satuan Terukur (HST) Sedimen Sungai Air Anak dan Sungai Talang Bandung putri, wardatul aini; Winarno, Dwi Joko; Kusumastuti, Dyah Indriana
Jurnal Rekayasa Sipil dan Desain Vol 6, No 2 (2018): Edisi Juni 2018
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Air Anak River and Talang Bandung River is upstream of the Way Besai River that is the largest in West Lampung District. Problems which often occur in the upstream region is land erosion causing sedimentation. The purpose of this study : to analyze the hydrograph measured units, to determine the sediment rate and determine the amount sediment HST Air Anak River and Talang Bandung River.The location of this research was conduced in the Air Anak watershed and Talang Bandung watershed, Sumber Jaya district, Lampung Barat. Data required in this study is automatic rainfall and suspended sediment data.From the result of the measurement unit hydrograph analysis Air Anak watershed and Talang Bandung watershed average sediment obtained in Air Anak watershed in a 10 minutes of 28,068 ton/tahun, 30 minutes period of 24,875 ton/tahun an a 60 minutes period of 23,9047 ton/tahun. While at Talang Bandung watershed period 10 minutes 26,0315 ton/tahun, 30 minutes period of 25,3898 ton/tahun and 60 minutes period of 26,903 ton/tahun. Keywords : HST sedimentation, DAS Air Anak, DAS Talang Bandung. AbstrakSungai Air Anak dan Sungai Talang Bandung merupakan bagian hulu dari Sungai Way Besai yang merupakan sungai terbesar di Kabupaten Lampung Barat. Permasalahan yang serimg terjadi di daerah hulu adalah masalah erosi yang menyebabkan terjadinya sedimentasi. Adapun tujuan dari penelitian ini yaitu : untuk menganalisis Hidrograf Satuan Terukurnya, mengetahui besarnya laju sedimentasi dan mengetahui besarnya HST sedimen Sungai Air Anak dan Sungai Talang Bandung. Lokasi penelitian ini dilakukan di DAS Air Anak dan DAS Talang Bandung, Kecamatan Sumber Jaya, Kabupaten Lampung Barat. Data yang diperlukan dalam penelitian ini adalah data curah hujan otomatis dan data sedimen suspended. Dari hasil analisis Hidrograf Satuan Terukur (HST) Sedimen rerata yang didapat pada DAS Air Anak pada periode waktu 10 menitan sebesar 28,068 ton/tahun, periode waktu  30 menitan sebesar 24,875 ton/tahun dan periode waktu 60 menitan sebesar 23,9047 ton/tahun. Sedangkan pada DAS Talang Bandung periode waktu 10 menitan sebesar26,0315 ton/tahun, periode waktu 30 menitan sebesar 25,3898 ton/tahun dan periode waktu 60 menitan sebesar 26,903 ton/tahun.Kata kunci:HST sedimen, DAS Air Anak, DAS Talang Bandung.
Analisis Metode Routing terhadap Hidrograf Banjir Sungai Way Sekampung di Way Kunyir Menggunakan HEC-HMS Ulfah, Marfirah; Kusumastuti, Dyah Indriana; Winarno, Dwi Joko
Jurnal Teknik Sipil Vol 15, No 4 (2020)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.699 KB) | DOI: 10.24002/jts.v15i4.3799

Abstract

Flood events often occur in Indonesia so that quite a lot of people researched about the movement of floods and flood monitoring in the Watershed. The location of the study was carried out by the Way Sekampung river in Way Kunyir located in the Pringsewu district, Lampung province and is located downstream of the Batutegi dam. Flood tracing is intended to analyze the chances of a flood in the form of a flood hydrograph with or without using the Routing method and find out the results of some Routing methods in the watershed. The Routing method used in this study is Lag, Lag and K and Muskingum. The HEC-HMS modeling results state that peak discharge data when without Routing is greater than entering the Routing parameter. This is because entering the Routing parameter in modeling is very influential at peak times so that it affects the peak discharge at the watershed outlet. As a result of Muskingum Routing, the peak discharge is lower than before entering the flow routing, this is due to the occurrence of reservoirs along the river so that the peak discharge becomes lower than without Routing. The results of Lag Routing and Lag and K Routing are peak discharge decreased compared to before entering the Routing parameter. what should have happened to the peak discharge with Routing and without Routing remains the same, however, only peak discharge tranlations occur and there is travel time. This happens because there is no debit data at the station being reviewed so it uses rain data instead of HEC-HMS modeling.
Analisis Metode Routing terhadap Hidrograf Banjir Sungai Way Sekampung di Way Kunyir Menggunakan HEC-HMS Ulfah, Marfirah; Kusumastuti, Dyah Indriana; Winarno, Dwi Joko
Jurnal Teknik Sipil Vol 11, No 2 (2012): Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.699 KB) | DOI: 10.24002/jts.v11i2.3797

Abstract

Flood events often occur in Indonesia so that quite a lot of people researched about the movement of floods and flood monitoring in the Watershed. The location of the study was carried out by the Way Sekampung river in Way Kunyir located in the Pringsewu district, Lampung province and is located downstream of the Batutegi dam. Flood tracing is intended to analyze the chances of a flood in the form of a flood hydrograph with or without using the Routing method and find out the results of some Routing methods in the watershed. The Routing method used in this study is Lag, Lag and K and Muskingum. The HEC-HMS modeling results state that peak discharge data when without Routing is greater than entering the Routing parameter. This is because entering the Routing parameter in modeling is very influential at peak times so that it affects the peak discharge at the watershed outlet. As a result of Muskingum Routing, the peak discharge is lower than before entering the flow routing, this is due to the occurrence of reservoirs along the river so that the peak discharge becomes lower than without Routing. The results of Lag Routing and Lag and K Routing are peak discharge decreased compared to before entering the Routing parameter. what should have happened to the peak discharge with Routing and without Routing remains the same, however, only peak discharge tranlations occur and there is travel time. This happens because there is no debit data at the station being reviewed so it uses rain data instead of HEC-HMS modeling.
Analisis Perbandingan Data Pemodelan Pasang Surut BIG Dengan Data Pengukuran Pasang Surut UHSLC Pada Stasiun Tanjung Lesung Sitanaya, Brigitha Cindy; Zakaria, Ahmad; Winarno, Dwi Joko
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1466

Abstract

Data pasang surut diperlukan untuk menentukan elevasi bangunan pantai. Badan Informasi Geospasial (BIG) telah menyediakan data pemodelan pasang surut yang dapat diunduh secara gratis. Namun untuk mengetahui keakuratannya, dilakukan perbandingan data BIG dengan data pengukuran tide gauge yang dipublikasikan oleh University of Hawaii Sea Level Centre (UHSLC). Data yang digunakan yaitu data pasang surut 30 harian dari stasiun Tanjung Lesung periode waktu 2008-2012 yang dianalisis menggunakan metode Least Squares dan 9 komponen harmonik pasang surut melalui program ANFOR. Hasil analisis ANFOR diolah sehingga didapat nilai penyimpangan serta keakuratan dari data pasang surut yang dibandingkan. Dari hasil penelitian ini, didapat nilai penyimpangan berdasarkan elevasi yaitu 3,3906 %, nilai koefisien korelasi langsung berdasarkan elevasi sebesar 0,9673, nilai penyimpangan berdasarkan amplitudo komponen pasut K1 sebesar 15,7853 %, O1 sebesar 4,8253 %, P1sebesar 28,1752 %, M2 sebesar 3,2388 %, S2 sebesar 10,6345 %, N2 sebesar 10,5147 %, K2 sebesar 41,3055 %, M4sebesar 97,4340 %, dan MS4 sebesar 97,2310 %, sementara nilai koefisien korelasi berdasarkan amplitudo komponen pasut yaitu 0,9898. Maka dapat ditarik kesimpulan bahwa antara data pemodelan BIG dan data pengukuran UHSLC memiliki tingkat keakuratan tinggi.
Analisis Metode Aliran Permukaan Langsung (Direct Runoff) Sungai Way Besai Menggunakan Software HEC-HMS Yana, Juwita Novi; Kusumastuti, Dyah Indriana; Winarno, Dwi Joko
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1515

Abstract

The river is a gathering place for water in the surrounding environment which flows towards a lower place. Way Besai river is located in Sumberjaya sub-district, West Lampung district which has an area of 410.72 km2. Direct runoff needs to be carried out on the Way Besai river to determine the flood hydrograph that occurs in the Way Besai river. The HEC-HMS model is a numerical hydrological model developed by the Hydrologic Engineering Center (HEC) of the US Army Corps Of Engineers.The methods used in direct flow runoff in the HEC-HMS software are the SCS UH method, the Clark's UH method and the Snyder's UH method. The purpose of this research was to analyze the Way Besai river flood hydrograph by calculating direct runoff using these three methods. The results of this study indicate that the SCS UH method is the most suitable compared to Clark's UH method and Snyder's UH method because it produces the smallest deviation value. Keywords : Way Besai, direct runoff flow, HEC-HMS, SCS UH, Clark's UH, Snyder's UH
Analisis Kualitas Air Hasil Pengolahan Air Hujan Dengan Metode Elektrolisis Menjadi Air Minum Hidayat, Kurnia Ryandani; Winarno, Dwi Joko; Kusumastuti, Dyah Indriana
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1527

Abstract

Air merupakan kompenen penting penting bagi kehidupan di bumi. Saat ini fenomena yang terjadi adalah masih banyak masyarakat yang kesulitas mendapatkan air dikarenakan ketersediaannya yang terbatas. Kondisi ini diakibatkan kuantitas air sudah tidak mampu memenuhi kebutuhan domestik yang terus meningkat sehingga perlu dilakukan pengelolaan kualitas air secara bijaksana.  Bentuk pengelolaan kualittas air yang saat ini masih jarang diterapkan yakni dengan pengolahan air hujan dengan metode elektrolisis. Tujuan dari metode ini adalah untuk memisahkan asam dan basa yang terkandung dalam air hujan hingga air layak digunakan sebagai air minum. Dalam studi ini, eksperimen dilakukan dengan meninjau pengolahan air hujan menjadi air minum dengan metode elektrolisis pada parameter pH dan TDS. Selain itu, dilakukan uji kualitas air hujan sesuai dengan Peraturan Menteri Kesehatan No.492 Tahun 2010. Dari eksperimen didapatkan bahwa metode elektrolisis 0,5 ampere lebih optimal untuk meningkatkan kualitas air hujan menjadi air minum pH basa 8+ dengan TDS fluktuatif berkisar 8 mg/l – 16 mg/l. Secara keseluruhan, kualitas air yang dimiliki air hujan memenuhi Peraturan Menteri Kesehatan No.492 Tahun 2010 mengenai persyaratan kualitas air minum Kata kunci : air hujan, metode elektrolisis, air minum
Analisis Kualitas Air Hasil Pengolahan Air Hujan Dengan Metode Elektrolisis Menjadi Air Bersih Andriani, Gustin; Winarno, Dwi Joko; Kusumaastuti, Dyah Indriana
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1532

Abstract

Water is all water that above or below the ground surface, including sea water that is on land. The need for clean water will increase, while clean water is scarce and must be paid handsomely. Meanwhile, the water source crisis is caused by the increasing need for water as a result of the growing population and land functions that can change the hydrological cycle. One way to meet human needs for clean water is by establishing the concept of rainwater harvesting, which is the concept of collecting rainwater that is stored in a reservoir and then the collected water can be used as an alternative source of water.The purpose of this study was to analyze the quality of rainwater before electrolysis and to determine the pH and TDS values of the permanent yield of rainwater and electrolysis.The results of this study are based on the results of laboratory tests showing that the overall quality of water in rainwater meets PerMenKes N0.416 of 1990. For the decreased pH and TDS values in the electrolysis process using a 1 ampere current adapter with a voltage of 300 volts has increased by 0 , 2-0.4 cm in acidic water. As well as for the area of titanium that affects the electrolysis process, the smaller the size of the titanium, the faster it will produce acid water.Keywords: water, rainwater, rainwater harvesting concept, electrolysis method, acid water.
Analisis Efisiensi dan Kehilangan Air pada Jaringan Irigasi Daerah Irigasi Sekampung Bunut Utami, Elok Budi; Kusumastuti, Dyah Indriana; Winarno, Dwi Joko
Jurnal Rekayasa Sipil dan Desain Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1567

Abstract

Considering the bad impact of water loss which has an impact on its efficiency, the authors are interested in analyzing the efficiency and water loss in irrigation networks in the Sekampung Bunut Irrigation Area (DI). Efficiency and water losses were analyzed using the in-discharge discharge method. The data used in this analysis consist of primary data in the form of flow velocity data with current meters, irrigation channel cross-sections, temperature data, humidity data, then secondary data, namely data on the length of solar radiation and wind speed data. Loss of water in the secondary irrigation channel KR Irrigation Area (DI) of Sekampung Bunut lost an average of 17.15%. Meanwhile, the efficiency of the secondary channel in the Irrigation Area (DI) of Sekampung Bunut was 82.85%. The theoretical value of the average efficiency in the secondary channel KR is 90%. This shows that the amount of efficiency is still below the requirements of theoretical efficiency. One of the factors that cause water loss in the secondary channel in the Sekampung Bunut Irrigation Area is the evaporation factor that occurs along the irrigation channel. Keywords: Channel efficiency, water loss, water discharge.
Analisis Pengaruh Pembagian SUB-DAS Terhadap Debit Puncak dengan Menggunakan Software HEC-HMS Aristiani, Widya; Kusumastuti, Dyah Indriana; Winarno, Dwi Joko; Wahono, Endro Prasetyo
Jurnal Rekayasa Sipil dan Desain Vol. 9 No. 4 (2021): Edisi Desember 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i4.2003

Abstract

Sungai Way Besai yang terletak pada kecamatan Sumberjaya, kabupaten Lampung Barat memiliki DAS yang cukup besar sehingga DAS tersebut dapat dibagi dalam beberapa Sub-DAS. Pembagian jumlah Sub-DAS di sungai Way Besai dilakukan untuk mengetahui apakah terjadi perbedaan nilai debit puncak pada saat dilakukan perhitungan debit puncak pada beberapa jumlah sub-DAS yang berbeda. Model HEC-HMS merupakan model hidrologi numerik yang dikembangkan oleh Hidrologic Engineering Center (HEC) dari US Army Corps Of Engineers. Pada penelitian ini dilakukan 3 pembagian sub-DAS yaitu pembagian 5 sub-DAS, 11 sub-DAS, dan 25sub-DAS. Metode yang dilakukan pada software HEC-HMS yaitu metode user gage weighting untuk perhitungan precipitation, metode SCS curve number untuk perhitungan volume runoff, metode SCS unit hydrograph untuk perhitungan direct runoff, metode constant monthly untuk perhitungan baseflow, dan metode muskingum untuk perhitungan routing. Hasil dari penelitian ini menunjukan bahwa semakin banyak jumlah pembagian sub-DAS semakin besar nilai debit puncak yang dihasilkan.
Co-Authors Ahmad Zakaria Andriani, Gustin Aristiani, Widya Dyah Indriana Kusumastuti Endro Prasetyo Wahono Hidayat, Kurnia Ryandani Jundulloh, Panglima Nivitha, Mutya putri, wardatul aini Sitanaya, Brigitha Cindy Siti Nurul Khotimah Ulfah, Marfirah Utami, Elok Budi Yana, Juwita Novi