Sri Eko Wahyuni
Jurusan Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH, Tembalang, Semarang 50275

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PENGENDALIAN BANJIR DAS DOLOK – PENGGARON PADA SUNGAI BABON Choirul, David; Kusuma, Rienddy Fajar; Wahyuni, Sri Eko; Darsono, Suseno
JURNAL KARYA TEKNIK SIPIL Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Flood is a condition where areas that normally are not inundated by water such as settlements, and other public facilities become stagnant. The impact of flood disasters is very detrimental both morally and materially as delays in transport lines which impact on the pace of the economy. Semarang city is one of the areas in Indonesia are prone to flooding. The condition worsened with a decrease in the land throughout the year reached 0.7 to 11.2 cm / year. Starting from Ivory Pucang weir, river silting baboon suffered due to sedimentation, thereby reducing the capacity of water drainage caused flooding in the area around the river. This study using HEC-HMS software to analyze the flood discharge with a return period of 2, 5, 10, 25, 50 and 100 years. From some of the return period flood discharge plan, for further analysis taken flood discharge plan with a return period of 100 years. The program has been calibrated using the flood discharge at the dam hourly Pucang Ivory. HEC-HMS addition, this study also uses the HEC-RAS software to analyze the profile of the river water level and produce a flood inundation area of flood discharge plan with a return period of 100 Pathe obtained from the processing of data for flood inundation in the area Sayung, Kab. Demak, so the need to improve cross-section.
EVALUASI FUNGSI BENDUNG DAN PERENCANAAN KEMBALI BENDUNG KATULAMPA Fardiaz, Dion Kartino; Purwitaningtyas, Rita; Wahyuni, Sri Eko; Kodoatie, Robert J.
JURNAL KARYA TEKNIK SIPIL Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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As Jakarta developed into a metropolitan city, flood problems become the center of attention for its citizens and the government of Jakarta. Ciliwung River is one of the significant contributors to flood discharge in Jakarta. Flood control in Jakarta area requires a very hard effort, considering the geological conditions which is an area of the basin and hydrological conditions are very vulnerable to inundation because bypassed by many rivers from upstream. Changes in land use that was once empty land converted to settlements, housing, and the building also has occurred both in the upstream and downstream along the rivers that pass through Jakarta. After an evaluation of watershed and watershed Krukut Sunter which is around Ciliwung watershed, it was found that there were streams of the watershed around the exit and entry into the Ciliwung watershed. These rivers flood contributed by ± 25% of the Ciliwung watershed resulting in widespread inundation in Jakarta increases. One of the efforts to control flooding in Jakarta is the construction of weirs Katulampa which serves as an early information system to flooding Ciliwung will enter Jakarta. From the evaluation of the function obtained Katulampa weir water level to Alert 1 is 200-250 cm to estimate flood discharge using HEC-HMS at 733 m3 / s. Data on the water level in the dam Katulampa estimates that approximately 9-10 hours later flood will arrive in Jakarta. The ability of the dam to divert water when it reaches Alert 1 of 7% of the flood discharge through the doors retrieval. In order to optimize the function of the weir and re-plan the weir, the initial step is the hydrological analysis with the result that be discovered gauge the dependable discharge, needs water discharge and flood discharge. In the Katulampa weir planning dependable discharge used is the discharge with probability 80%. Water needs value to fulfill the irrigation water requirement is 1.87 liters / sec / ha or water needs discharge for water irrigation is 6.03 m3 / sec. Flood discharge by the method of HEC-HMS for the return period of 25 years at 733.90 m3 / sec is used as the basis to design the main building weirs. Katulampa weir using high lighthouse beacon round with effective width of 2.5 m and 95.43 m. Bags of mud along the channel with a width of 62.5 m at 4.75 m channel basis. Katulampa weir construction planned at a cost of ±4,193,000,000.00 billion rupiah, and planned implementation time ± 168 working days.
PERENCANAAN GROUND SILL DI SUNGAI SENJOYO KABUPATEN SEMARANG Putra, Ichwan Rachmat; Prabowo, Imam Adi; Wahyuni, Sri Eko; Falah, Al
JURNAL KARYA TEKNIK SIPIL Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Senjoyo River is a tributary of Tuntang River which are ±138 km2catchment area, 37 km length and 0,008 bottom slope. That condition causes scour at the bridge foundation. The location of bridge is in Tempuran Village, Bringin Subdistric, Semarang Regency. The solution to conserve the Senjoyo River has to build a ground sill. Ground sill is building cross river which is built to protect degradation in the upstream of river. The ground sill analysis is needed hydrologic analysis to calculate the design flood discharge, hydraulic analysis to calculate the passing capacity discharge, analysis of sediment transport and riverbed?s stability to calculate the value of stable slope and bank protection, hydraulic analysis to compute the dimension of new river, slope stable analysis to calculate the riverbank slope which is stable and the design of ground sill to calculate the dimension of ground sill, stilling basin and bottom protection. The conclution of ground sill design is 2 m ground sill height, 62 m ground sill width, 16 m stilling basin length and 20 m bottom protection length. The conclution of river normalization is 0,00024 stable slope, 120 m new river width and 1:1 riverbank slope. The ground sill can protect the foundation bridge and can be increase the river bottom level until the existing of river bottom level before degradation.
PERENCANAAN BANGUNAN PENGENDALI SEDIMEN, ZONA NON CEKUNGAN AIR TANAH, HULU SUNGAI SERANG, WONOSEGORO, KABUPATEN BOYOLALI Prasetiyo, Rizki Adi; Amali, Adib; Wahyuni, Sri Eko; Kodoatie, Robert J.
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 2, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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The location plan of Wonosegoro Check Dam in the Upper Serang river, District of Wonosegoro regency of Boyolali, has the hydrogeological characteristics of Non ground water basin (Non CAT). The Serang Wonosegoro watershed has 177.16 km 2 area. The flood discharge plan obtained by the Rational method in the amount of  581.425 m3/second with a return period of 100 years. Check Dam has design by reinforced concrete with effective main dam height of 2 m, Sub Dam 1 m, and width 55 m, summit peak elevation of dam + 118.93 m above sea level and length of apron 26.390 m. Results of sediment transport by Ackers & White method is Qs = 5,174 tonnes / day. The magnitude of the rate of sedimentation in the Serang watershed amounted to 17.579 tons / ha / year. Time project of execution plan is 28 weeks with a budget plan is Rp. 6,422,807,000.00.
PERENCANAAN DRAINASE GAYAMSARI SUBSISTEM KANAL BANJIR TIMUR SEMARANG Khoir, Rizki Ade; Panjaitan, Novita Afrianti; Wahyuni, Sri Eko; Nugroho, Hari
JURNAL KARYA TEKNIK SIPIL Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Gayamsari District Area of Semarang is one of the flooded area. The causes of flooding is local rainfall that occurred in the village Gayamsari, Pandean Lamper, Siwalan and Sambirejo which is a sub-system of the East Flood Canal, where the channel capacity in the area can not accommodate the flow of water passing through the channel. Limited drainage capacity caused by the blockage of garbage and sediment that makes the water can not flow when it rains. This causes the drainage channel over capacity when it rains with great intensity and in a rather long time, which can result in a puddle with a depth of between 20-50 cm for ± 1-5 hours. To overcome this done drainage planning in order to cope with floods and inundation in the area. The initial steps of planning a drainage cover primary and secondary data collection, planning drainage used 14 years of rainfall data, topographic maps and the existing drainage system. In planning, hydrological analysis to seek the discharge plan with EPA SWMM program. Obtained flood discharge plan with a return period of 5 years on each subcatchment ranged from 0.24 to 3.81 m3 / sec. Furthermore, to determine the effectiveness of the existing channel cross section is modeled with HEC-RAS program. Planned cross-section with a steady flow conditions. The results of calculations using the program shows a cross section in the downstream Gajah Raya Street and Soekarno-Hatta Street can not accommodate discharge plan. Handling is done by increasing capacity of the drainage channel and making the detention basin.
EVALUASI DAN PERENCANAAN KEMBALI BENDUNG SAPON Utomo, Fajar Nugroho; Apriani, Dyah Wahyu; Wahyuni, Sri Eko; Hardiyati, Siti
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Sapon weir, which located at Kulon Progo, Yogyakarta, is a hydraulic structure that its water supply is from Progo river. Sapon weir are used to flow through ± 1850 ha rice field area, from ± 2250 ha before at 2,3 m3/sec, and to fulfill the water needs in 4 sub districts at 0,2 m3/sec. The increasing function of Sapon weir from only covering the irrigation needs, to fulfilling the water needs it is the implementation of the regulation no 8 year 2005 about water resources. The analysis of flood design using Haspers Metod, FSR Jawa-Sumatera, HSS Nakayasu, HSS Gama 1 with flood design comparation from Pasing Capacity Metod that has 1123,96 m3/sec of flood discharge in hundred year periode (Q100). The design of Sapon weir consists of main dam, complement buildings and requirement water supply pump for 1383,97 m3/sec of flood discharge hundred years period. The differences of weir design change the weir dimensions and the complement buildings.
EVALUASI DAN PERENCANAAN KEMBALI BENDUNG SAPON Apriani, Dyah Wahyu; Utomo, Fajar Nugroho; Wahyuni, Sri Eko; Hardiyati, Siti
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Sapon weir, which located at Kulon Progo, Yogyakarta, is a hydraulic structure that its water supply is from Progo river. Sapon weir are used to flow through ± 1850 ha rice field area, from ± 2250 ha before at 2,3 m3/sec, and to fulfill the water needs in 4 sub districts at 0,2 m3/sec. The increasing function of Sapon weir from only covering the irrigation needs, to fulfilling the water needs it is the implementation of the regulation no 8 year 2005 about water resources. The analysis of flood design using Haspers Metod, FSR Jawa-Sumatera, HSS Nakayasu, HSS Gama 1 with flood design comparation from Pasing Capacity Metod that has 1123,96 m3/sec of flood discharge in hundred year periode (Q100). The design of Sapon weir consists of main dam, complement buildings and requirement water supply pump for 1383,97 m3/sec of flood discharge hundred years period. The differences of weir design change the weir dimensions and the complement buildings.
PERENCANAAN EMBUNG SEMAR KABUPATEN REMBANG Irfany, Muchammad Chusni; Wicaksono, Satriyo Pandu; Suripin, Suripin; Wahyuni, Sri Eko
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Semar small dam which is located in Mlatirejo village of Rembang Regency is built on Serojeh River with 10.62 km2 of watershed.. The function of Semar small dam is to fill the needs of raw water and irrigation water requirement. Semar small dam was is designed with 240.449 m3 of water capacity in +67 elevations. The effective volume of Semar small dam is 137.385 m3 which provides the needs of raw water and irrigation of them are 0.002 m3/sec and 0.08 m3/sec. This spillway is designed to reduce the flood of reissue 50 years period of 121.091 m3/sec into 43.47m3/sec. The small dam was a homogeneous soil with its 15 meter in height and 158 meter in length. This project implementation is scheduled for 28 weeks with a budget plan of Rp 8.469.864.600,00.
PERENCANAAN CHECK DAM SUNGAI DAWE KUDUS Mustaanah, Adibatul; Pinandoyo, Nur; Sugiyanto, Sugiyanto; Wahyuni, Sri Eko
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Juana river?s located in two administrative regions Kudus and Pati had superficial. This is because the slope of the river is quite gentle and the level of environmental degradation in the watershed (DAS) Juana river?s have increased. Based on these conditions, it is necessary to plan the construction of sediment control (check dams) to reduce sedimentation along the river and optimize the function of the Juana river?s. Planning is performed on Dawe river?s ,the branch of Juana river?s. From the calculation results obtained 7 m high main dam, main dam foundation depth of 2,8 m, width of crest main dam 32 m, the water level above the crest 1,60 m, high freeboard 0,6 m, thick of main dam crest wing 2 mand capacity of sediments for 20.851,063  m³. The total cost needed to build the check dam Dawe river?s is Rp. 6.511.846.000,00 already includes VAT and 23 weeks old craftsmanship.
PERENCANAAN PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMH) KARANGTALUN, KABUPATEN TEMANGGUNG Aprilianto, Rahmat Ramadhany; Fungkas, Achmad; Wahyuni, Sri Eko; Suharyanto, Suharyanto
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Generally in remote rural areas, especially in the Temanggung regency Karangtalun are difficult to reach PLN's electrical supply but have the potential for huge energy of river water, then it can be utilized by the construction of Pembangkit Listrik Tenaga Mikrohidro (PLTMH) for rural electricity needs can be fulfilled with the population evenly so that no society can not feel the electricity in the place they live in this modern era. In areas that are Logung river on the border between Kendal and Temanggung regency that have the potential of water (Q) of 1,30 m3/sec with a 15 m high waterfall. Then it can generate power for the turbine at 137,85 Kw with the type of cross flow turbine capable to power in the Karangtalun as many as 153 homes. The costs incurred for the development of Pembangkit Listrik Tenaga Mikrohidro (PLTMH) Karangtalun Rp. 11.859.530.000,00 with construction work for 91 weeks.