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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil International Conference on Engineering and Technology Development (ICETD) Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Jurnal Teknik Sipil Briliant: Jurnal Riset dan Konseptual Teras Jurnal Civil Engineering Dimension BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil SIKLUS: Jurnal Teknik Sipil Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teori dan Aplikasi Fisika Journal of Engineering and Scientific Research (JESR) Publikasi Riset Orientasi Teknik Sipil (Proteksi) JURNAL HUTAN TROPIS Jurnal Sipil Terapan

Dyah Indriana Kusumastuti

Jurusan Teknik Sipil Fakultas Teknik Universitas Lampung Jl. Sumantri Brojonegoro No.1 Bandar Lampung.

Author-ID : 303062

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Physics Transportation Other

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Estimasi Potensi PLTMH dengan Metode Regionalisasi pada Ungauged Catchments di Kecamatan Suoh Kusumastuti, Dyah Indriana; Winarno, Dwi Joko; Humaidi, Humaidi; Falah, M. Najmul; Robiyanto, Robiyanto
Jurnal Teknik Sipil Vol 23, No 1 (2016)
Publisher : Institut Teknologi Bandung

Abstrak. Listrik merupakan masalah utama di Kecamatan Suoh, karena daerah ini belum teraliri listrik PLN. Daerahnya yang berada di hulu sungai Way Semaka menyebabkan Suoh memiliki potensi air yang cukup bagus untuk dijadikan pembangkit listrik. Penelitian ini bertujuan untuk menganalisis potensi sumber daya air sebagai pembangkit listrik di tiga sungai yaitu Way Hantatai, Way Sekandak dan Way Gunung Lanang. Ketiga sungai tersebut dapat dikategorikan sebagai ungauged catchment. Metode penelitian meliputi analisis kemiripan karakteristik hidrologis DAS Way Semaka dengan DAS Way Besai, penerapan metode regionalisasi melalui pembuatan FDC dimana data debit yang digunakan untuk pembuatan FDC berasal dari data debit Way Besai yang letaknya berdekatan dengan Way Semaka. Pengukuran variabel aliran di sungai digunakan untuk memverifikasi hasil perhitungan debit andalan dari penerapan metode regionalisasi. Potensi daya listrik dihitung berdasarkan debit andalan Q50 serta bedaÂ tinggi. Hasi penelitian menunjukkan bahwa terdapat kemiripan kerakteristik hidrologis antara DAS Way Semaka dan DAS Way Besai. Debit terhitung berdasarkan pengukuran sesuai dengan debit andalan 80% - 93% dari FDC untuk ketiga sungai. Potensi daya listrik maksimal dengan efisiensi 90% yang dapat dibangkitkan dari sungai Way Hantatai sebesar 15,26 KW, dari sungai Way Sekandak sebesar 4,12 KW dan dari sungai Way Gunung Lanang sebesar 2,71 KW.Abstract. Electricity is the major problem in Suoh sub-district because there is no electricity distributed by National Electricity Company (PLN). Suoh is located in the upstream of Way Semaka and water is available in river tributaries throughout the year which can be utilized for micro hydro power. This research aims to analyse the potency of the rivers including Way Hantatai, Way Sekandak and Way Gunung Lanang. The three rivers are categorised as ungauged catchments. Research method includes analysis of hydrologic similarity berween Way Semaka and Way Besai catchments, application of regionalization method where FDC for Way Semaka was developed from discharge data from Way Besai located close to Way Semaka. Measurement of flow variables in the rivers are used to verify dependable discharge calculated by regionalization method. The potency of electricity power is calculated based on dependable discharge Q50 and head. The result shows that hydrologic similarityÂ exists between Way Semaka and Way Besai catchments. Calculated discharges based on river measurements comparable to dependable discharges between 80%-93% from the FDCs for the three rivers. The maximum electricity power which can be generated are 15.26 KW, 4.12 KW and 2.71 KW for Way Hantatai, Way Sekandak and Way Gunung Lanang respectively.

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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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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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.Â 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 waktuÂ 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.

BASE FLOW INDEX OF WAY SEPUTIH RIVER AT BUYUT UDIK Kusumastuti, E.P. Wahono, A. Yusuf, Dyah Indriana
Journal of Engineering and Scientific Research Vol 1, No 2 (2019)
Publisher : University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v1i2.27

One of river flow components considered in watershed management is baseflow, the main contributor to the river flow during dry season. Ratio between baseflow to total flow is called Base Flow Index (BFI). In fact, BFI can be used as an indcator how good the catchment hydrology is. The purpose of this study is to analyze BFI of Way Seputih river at Hydrometry Station Buyut Udik. The method includes Recursive Digital Filter (RDF) method, which utilizes constant recession of hydrographs in displaying the ratio of baseflow from continuous discharge during periods when there is no direct runoff. Daily discharge data from Way Seputih river at Buyut Udik recorded from 1973 to 2006 is used. The result shows that yearly BFI values range from 0.142 to 0.487 and there is a decrease trend of yearly BFI over time. This result is confirmed by yearly average discharges which tend to decrease over time. These are effected by land cover degradation in Way Seputih catchment and this should be a concern for authorities to improve land and water conservation in Way Seputih catchment so that river flow could be maintained throughout the year. Keywords: base flow index, baseflow, dry season

HYDRAULIC ANALYSIS OF THE JOHOR RIVER USING HEC-RAS Kusumastuti, Dyah Indriana
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 14, No 2 (2010): Edisi Agustus Tahun 2010
Publisher : UNIVERSITAS LAMPUNG

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Kota Tinggi located in the southern state of Malaysia, i.e. Johor Baru, experienced severe floods in December 2006 and January 2007, which was due to prolonged and intense rainfall. Johor River was inadequate to accommodate the water and at the same time the flow unable to escape the swolen river, hence water inundated the town. One of the river characteristics that may contribute in flooding is the meandering shape. Therefore it was proposed to do a hydraulic model that simulated some alternate channels that straightened some parts of the river. The model used one dimensional steady state approach using HEC-RAS software. The simulation result of the existing condition estimated that January 2007 flood event had a return period of 100 years. From the hydraulic model, it can be concluded that the choice of location and the length of the alternate channel had an effect on how much water level reduced.

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

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

Penggunaan Metode Geolistrik Untuk Pemodelan Distribusi Intrusi Air Laut di Daerah Pesisir Kota Bandar Lampung Syafri Adi; Ahmad Zaenudin; Dyah Indriana Kusumastuti; S Suharno
Jurnal Teori dan Aplikasi Fisika Vol 2, No 1 (2014): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v2i1.1262

Telah dilakukan penelitian pencemaran lingkungan yang disebabkan intrusi air laut dipesisir kota Bandar Lampung, Kecamatan Teluk Betung Selatan. Daerah yang dijadikan lokasi penelitian merupakan daerah perkantoran, kawasan pemukiman dan pasar induk. Penelitian dilakukan dengan dua metode yaitu metode geolistrik tahanan jenis dan metode uji salinitas. Penerapan metode geolistrik bertujuan menafsirkan perlapisan bawah permukaan terkait keberadaan lapisan air tanah dan intrusi air laut. Metode geolistrik menerapkan metode 1D sejumlah tiga titik VES dengan AB/2 = 150 m; sedangkan metode 2D sejumlah 10 lintasan tersebar di beberapa tempat. Metode uji salinitas dilakukan dengan mengambil sampel air sumur penduduk disekitar daerah pengukuran geolistrik. Berdasarkan pengujian salinitas pada sampel air yang berasal dari sumur pada radius 140 – 500 m dari garis pantai, memiliki salinitas antara 0.04 - 0.32 ppt. Sedangkan hasil pencitraan geolistrik, air tanah hanya terdapat pada kedalaman kurang dari 20 m. Terjadinya intrusi pada air tanah, menyebabkan nilai hambatan jenis pada lapisan ini berkisar 19 – 25 ohm meter. Sebaran nilai resistivitas batuan dan salinitas pada daerah penelitian menunjukkan bahwa akuifer wilayah ini telah mengalami pencemaran air laut.

Geospatial Analysis of Land Use and Land Cover Changes for Discharge at Way Kualagaruntang Watershed in Bandar Lampung Fieni Yuniarti; Dyah Indriana K; Dwi Joko Winarno
International Conference on Engineering and Technology Development (ICETD) 2013: 2nd ICETD 2013
Publisher : Bandar Lampung University (UBL)

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Land use and land cover change in a watershed might drive some impacts, such as high amounts of discharge fluctuations. Way Kuala Garuntang Watersheed is one of watershed in Bandar Lampung that has changed significantly. This study analyzed land use and land cover change to determine how much its influence on discharce fluctuations based on Geographics Information System. The method used in this study comprised of hidrology, spatial and sensitivity analysis. Hidrology analysis based on daily rainfall data. Spatial data analysis aims to present geospatial data related effects of land use and land cover change on the value of discharge. Sensitivity analysis is done by creating a land use and land cover simulation scenarios and sees its effect on the peak discharge events. The results of hidrology analysis in this study showed that the rainfall data obtained from the rainfall stations around the watershed were inconsistent and it needs to be repaired. It was found that the pattern of rainfall distribution in Bandar Lampung for 4 hours consists of 40%, 40%, 15% and 5% pattern. The results of spatial analysis in this study showed that there are 11 types of land cover on the existing condition and only has a protected area covering 4.72% of the total watershed. From the results of the sensitivity analysis showed that land use scenario with availability less than 30% of the area of green open space watershed may cause an increase in the value of the peak discharge. Instead, the scenario to maintain a 30% green open spaces of wide watershed did not make a significant change in peak discharge. This action is necessary to provide enough space for the infiltration of rain water on a particular area for the purpose of supplying the needs of ground water and flood control.

Geospatial Analysis of Land Use Change in Way Kuripan Watershed, Bandar Lampung City Candra Hakim Van Rafi’i; Dyah Indriana Kusumastuti; Dwi Jokowinarno
International Conference on Engineering and Technology Development (ICETD) 2013: 2nd ICETD 2013
Publisher : Bandar Lampung University (UBL)

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The purpose of the study is to analyze land use and land cover change impact on Way Kuripan discharge. Six scenarios of land use and land cover changes at Way Kuripan watershed area of 53.54 km² was developed based on geospatial analysis with Geographic Information System. Peak discharge is calculated by using rational method. From the six scenarios simulation, scenarios 1, 2, 3, and 4 maintained the protected areas of 80.15%. Land use and land cover changes done by changing areas from vacant land and agricultural areas to be residential, industrial and government office areas. From the analysis, peak discharge of scenarios 1, 2, 3, and 4 change slightly which are between 11.19% and 23.46%. These results are in contrast to scenarios 5 and 6, in which scenario 5 keep the protected areas about 53.35% while in scenario 6 left the protected areas around 30%. Those protected areas changed into residential areas. The result showed that in scenario 5, the peak discharge changed about 66.29%. While in scenario 6, it changed about 107.19%. It can be concluded that the existence of protected areas in Way Kuripan Watershed was very important role to reduce the peak discharge values.

Co-Authors Adenan Yusuf Afandi . Ahmad Herison Ahmad Zaenudin Ahmad Zakaria Ahmad Zakaria Ahmad Zakaria Ahmad Zakaria Ainita, Okta Aji Saputra, Aji Anton, Sari Astika Murni Lubis Bayu krishna mukti C.H. Van Rafii Candra Hakim Van Rafi’i D. Jokowinarno Diwantari, Windy Putri Dwi Joko Winarno Dwi Joko Winarno Dwi Joko Winarno Dwi Joko Winarno Dwi Joko Winarno Dwi Joko Winarno Dwi Jokowinarno Dwi Jokowinarno ELOK BUDI UTAMI Endro Prasetyo Wahono F. Yuniarti fadhel dzaki sembiring Falah, M. Najmul Fathony, Awal Rifan Fieni Yuniarti Fitriya Rahmawati gustin andriani Haris Murwadi Humaidi Humaidi Humaidi Humaidi Humaidi, Humaidi Irwan Sukri Banuwa Irwan Sukri Banuwa juwita novi yana Kristianto Usman M. Najmul Falah Mahardika, Siti Mardiyansyah Mardiyansyah Marfirah Ulfah Maulana Yusuf Mega Astriyana Melya Riniarti Muhamad Angga Wicaksono Muhammad Jazuli Mustofa Murdiagatma, Sefrinta Sasma Mutya Nivitha Nency Dwi Kusanti Nengah Sudiane Niken, Chatarina Nivitha, Mutya Nora Anggraini Nugraheni, Melly Nur Arifaini Ofik Taufik Purwadi Ofik Taufiq Purwadi Ofik Taupik Purwadi Panglima Jundulloh Purwadi, Ofik Taupik putri, wardatul aini Rama Dian Gani Rian Alfian Riki Chandra Wijaya Riyo Ardi Yansyah Riza Muhida Robiyanto Robiyanto Robiyanto, Robiyanto Rosidah Amini S Suharno Siti Nurul Khotimah Slamet Budi Yuwono Slamet Budi Yuwono Sri Ratna Sulistiyanti Subuh Tugiono Subuh Tugiono, Subuh Suharni Suharni Sumiharni . Susilowati A Syafri Adi Teguh Endaryanto Tiara Maelta Amanda Titik Ayuningsih Tomi, Muhammad Tommy Arisandy Ulfah, Marfirah Very Dwiyanto wahyu hadi kuncoro Wardatul Aini Putri Widya Aristiani Wijaya, Riki Chandra Winarno, Dwi Joko Winda Maria Rebecca Gultom Witta Putri Anggraini Yuda Romdania yulianto, alim Zaldi Ronald

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