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MODEL SISTEM PENUNJANG KEPUTUSAN (DECISION SUPPORT SYSTEM MODEL) UNTUK PERENCANAAN PENGELOLAAN WILAYAH SUNGAI SESUAI UU 7/2004 Darsono, Suseno; S.A., Pranoto
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.112 KB) | DOI: 10.14710/teknik.v29i3.1969

Abstract

Total population increase therefore water supply requirement, irrigation water, as well as requirement ofresidential areas are also increase. Many ways in development of water resources management arerequired to fulfill future water requirement, and need minimizing land use changes. Integrated waterresources management planning based on river basins is required. Polices for water resourcesconservation program, exploitation of water resources and control of the water’s destructive force arerequired for optimizing water resources management. A holistic water resources management is requiredfor protecting, maintaining as well as increasing the value of water resources. According to WaterResources Law No. 7 year 2004, a water resources planning for a river basin has to prepare withparticipation of some stakeholders. Many program alternatives of water resources management will beproduced from a water resources management planning process. Thus, the ranking analysis of alternativeprograms needs to be proceeded. Decision Support System (DSS) with weighting optimization model is atool for helping to determine the rank of water resources development programs. The DSS technique needscriteria as basic for prioritizing water resources development programs. Determination weight for eachcriterion and score for each alternative water resources development program are required. Applicationof this model is a priority analysis of water resources development program from JRATUNSELUNA riverbasin for administration district Jepara, Kudus and Demak
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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Abstract

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.
PENGENDALIAN BANJIR SUNGAI DOMBO SAYUNG KABUPATEN DEMAK Arahman, Imam; Budiarjo, Imam; Darsono, Suseno; Sugiyanto, Sugiyanto
Jurnal Karya Teknik Sipil Volume 4, Nomor 1, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flooding is one of the disasters that often occur in Demak Regency especially Sayung area, Karang Asem, and Mranggen. The impact of floods can not be ignored, such as damage to city infrastructure, and socio-economic losses in the region Demak regency occur due to inundation and inundation long time. Dombo Sayung River Flood Control Objectives is to reduce the occurrence of floodwaters in the area Demak regency using structural measures. The flood control study using a return period of 100 years. With a return period flood hydrograph Q100th Dombo Sayung River analyzed using HEC-HMS software. While the hydraulics analysis were analyzed using the HEC-RAS software. The analysis shows a cross-existing conditions Dombo Sayung River insufficient to drain the flood discharge Q100th of 343.0 m3/sec with the effect of the floods, so it needs to repair the river cross-section an attempt to enlarge the drainage of the river.
PENGENDALIAN BANJIR KAWASAN SIMPANG LIMA SEMARANG Krissetyatno, Febri Wisda; Budi, Ganang Setyo; Darsono, Suseno; Kodoatie, Robert J.
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Simpang Lima area of Semarang is administration region, education residence, service, and industry which are constructed in the center of Semarang sub district. Center Semarang region is an area where is topographically flat. Industry development, trade, and rapid growth people bring Simpang Lima are of Semarang as the prominent center growth of Semarang city. In addition flood happened in region of Simpang Lima area of Semarang is caused by the lack of drainage performance, high sedimentation, and not yet maximum in flood control using provision of water pumps. There are some scenarios to solve that proble,. the first scenario is by fixing the channels in Simpang Lima are of Semarang in order to increase the capacity of channel flow. This way includes widening the channel, fixing the slope of bottom channel, and scanting the discourtesy of channel flow wall. Second scenario is by making new channel in Simpang Lima cycle, because of the difficult to rehabilitate the existing channel which locates under sidewalk of Simpang Lima cycle, so taken solution to make new channel. The new channel locates under the road of Simpang Lima cycle and uses closed channel type. The third scenario is by maximizing the capacity in Kartini Pump Station. Hope by maximizing the capacity of pump may fasten the process of water disposal from Kampung Kali River to Banjir Kanal Timur River and reduce water level in Simpang Lima area of Semarang drainage channel downstream section.
PERANCANGAN WADUK MUNDINGAN DI KOTA SEMARANG Abror, Muhammad Taufiq; Setiawan, Rizka; Darsono, Suseno; Nugroho, Hari
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flood in the Semarang City occur every year in the rainy season, drought and water shortages in the dry season. It has been built Jatibarang Reservoir and upstream there is a potential reservoir that could add to the raw water supply and flood control. The analysis used in planning reservoir that is the analysis of hydrology and hydraulics. Hydrological analysis using methods Soil Conservation Service Unit Hydrograph Synthetic (SCS) and Unit Hydrograph Synthetic of GAMA I. Q100 flood discharge plan with 165 mm of rain, the result of a method SCS unit hydrograph assisted HEC-HMS program amounting to 442 m3 / sec while the HSS GAMA I method with 218 mm of rain discharge plan generated at 359.02 m3 / sec. Flood discharge calculation used is a method SCS. PMF flood resulting from rainfall of 2408.7 mm deep as 677 m3 / sec. With the design of flushing water of 1.7 m3 / sec then storage volume up to 20,000,000 m3 and a storage volume of sediment up to 1,000,000 m3. With the reservoir can reduce flooding 100-year period by 77% from 442.9 m3 / sec to be 97.1 m3 / sec, and reduces the PMF discharge of 66% of 2408.7 m3 / sec to be 814.2 m3 / sec and reservoirs totaling 38 million m3. Dam 34 m high, dam crest 10 m wide, rock fill zone embankment type and spillway crest width of 20 m
PENYUSUNAN MANUAL OPERASI DAN PEMELIHARAAN WADUK SANGGEH KABUPATEN GROBOGAN PROVINSI JAWA TENGAH Kusumardi wibowo, Nur Rendra; Rohendi, Adi Putra; Darsono, Suseno; Nugroho, Hari
Jurnal Karya Teknik Sipil Volume 6 ,Nomor 1, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Waduk Sanggeh pasca rehabilitasi pada tahun 2015 belum diketahui kondisi terkininya dan belum dapat dioperasikan. Kondisi terkini waduk Sanggeh dapat diketahui dari evaluasi kelayakan. Kegiatan operasi dan pemeliharaan waduk membutuhkan suatu pedoman/manual. Pada waduk Sanggeh belum mempunyai manual operasi dan pemeliharaan. Manual tersebut digunakan sebagai dasar dalam kegiatan operasi dan pemeliharaan waduk Sanggeh. Evaluasi kelayakan yang dilakukan pada waduk Sanggeh meliputi evaluasi terhadap hidrologi waduk, hidrolika bendungan, serta stabilitas bendungan Sanggeh. Hidrologi waduk Sanggeh dianalisis dengan metode Hydrology Synthetic untuk mendapatkan debit banjir pada waduk. Hidrolika bendungan dianalisis dari muka air banjir maksimum. Muka air banjir maksimum nantinya dijadikan dasar dalam evaluasi bendungan dan bangunan pelengkapnya. Manual operasi dan pemeliharaan waduk Sanggeh disusun berdasarkan Pedoman Operasi, Pemeliharaan, dan Pemantauan Bendungan. Pola operasi waduk Sanggeh dibuat sebagai acuan pengaturan air untuk dapat memenuhi kebutuhan air. Pembuatan pola operasi tersebut menggunakan metode simulasi. Evaluasi hidrologi pada waduk Sanggeh didapatkan debit 100 tahunan sebesar 29,0 m³/s. Elevasi muka air banjir mencapai +47,5 m. Evaluasi hidrolika bendungan Sanggeh didapatkan bahwa bendungan Sanggeh aman untuk dilakukan kegiatan operasi dan pemeliharaan. Stabilitas bendungan Sanggeh mencapai angka keamanan stabilitas bendungan dengan nilai 3,906 pada kondisi steady state. Pola operasi waduk Sanggeh mengikuti pola tanam daerah irigasi Sanggeh yang berdasar pada SK Bupati Grobogan Tahun 2013. Pola operasi yang dihasilkan dievaluasi kinerjanya berupa keandalan dengan nilai 71,4%, kelentingan dengan press index 0,0011 dan kerawanan sebesar 21,3%. Kegiatan operasi dan pemeliharaan waduk Sanggeh membutuhkan biaya pada tahun pertama yaitu sebesar Rp. 934.816.214,00.
Perbandingan Hasil Pemodelan Aliran Satu Dimensi Unsteady Flow dan Steady Flow pada Banjir Kota Tigor Oktaga, Andreas; Suripin, Suripin; Darsono, Suseno
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1, JULI 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.049 KB) | DOI: 10.14710/mkts.v21i1.11229

Abstract

One dimensional flow is often used as a flood simulation for the planning capacity of the river. Flood is a type of unsteady non-uniform flow, that can be simulated using HEC-RAS. HEC-RAS software is often used for flood modeling with a one-dimensional flow method. Unsteady flow modeling results in HEC-RAS sometimes refer to error and warning due to unstable analysis program. The stability program among others influenced bend in the river flow, the steep slope of the river bottom, and changes in cross-section shape. Because the flood handling required maximum discharge and maximum flood water level, then a steady flow is often used as an alternative to simulate the flood flow. This study aimed to determine the advantages and disadvantages of modeling unsteady non-uniform and steady non-uniform flow. The research location in the Kanal Banjir Barat, in the Semarang City. Hydraulics modeling uses HEC-RAS 4.1 and for discharge the plan is obtained from the HEC-HMS 3.5. Results of the comparison modeling hydraulics the modeling of steady non-uniform flow has a tendency water level is higher and modeling of unsteady non-uniform flow takes longer to analyze. Results of the comparison the average flood water level maximun is less than 15%  (± 0,3 meters), that is 0.27 meters (13.16%) for Q50, 0.25 meters (11.56%) for Q100, dan 0.16 meters (4.73%) for Q200. So the modeling steady non-uniform flow can still be used as a companion version the modeling unsteady non-uniform flow.
Transmisi Gelombang pada Pemecah Gelombang Ambang Rendah Ganda Surendro, Bambang; Yuwono, Nur; Darsono, Suseno
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 1, JULI 2014
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (917.764 KB) | DOI: 10.14710/mkts.v20i1.9242

Abstract

Coastal protection efforts can be done in various ways, among others, by making alow threshold breakwaters (sumerged breakwater). Every building in addition there is certainly no shortage of excess. With several weaknesses breakwater low threshold, then conducted research with the title “Wave Transmission At Low Threshold Dual-breaking waves". The study was conducted in the Hydraulic laboratory of the Faculty of Engineering, Tidar Magelang University, with variations of the model as follows: Model I : single low threshold breakwater piles of stones (PGARTTB) with peak width (B)=120 cm Model II : a low threshold double breakwater piles of stones (PGARGTB) formed by reducing material PGARTTB protective stone that is in the middle as much as 8.89%, 20%, 33.33%, and 46.67%. The results showed that: a) Reduction of material protection on the stone breakwater lowthreshold single pile of stones (PGARTTB) affect the magnitude of the wave transmission, b) reduced protective stone will increase the value of the wave transmission coefficient c) for each reduction of 1% a protective stone, waves of up 0.2788% transmission, d) the increase in transmission waves are caused by the reduced friction between the base and peak wave breakwaters low threshold.
Transmisi dan Refleksi Gelombang pada Pemecah Gelombang Ambang Rendah Ganda Tumpukan Batu Surendro, Bambang; Yuwono, Nur; Darsono, Suseno
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 2, DESEMBER 2014
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (718.552 KB) | DOI: 10.14710/mkts.v20i2.9259

Abstract

Protection of beaches for tourism development, protection planning in addition to aiming to keep the damage to the beach will also need to think about the authenticity and beauty of the beach area . Building protective beaches that can meet these objectives include low threshold breakwaters (submerged breakwater). Some of the excessuse of low threshold breakwaters are: 1. No disturbing beauty of the beach; 2. because construction is under water, then when the wave comes partially absorbed wave energy, will be partially reflected, and the rest will be transmitted; 3. can become breeding grounds for fish, because the construction is hollow. The disadvantages are: 1. requires a large stone with a large number, 2. in the assembly requires a supporting infrastructure such as transport  equipment, long bridge, lifting equipment etc, thus requiring a lot of cost. Based on that research conducted by the title of the transmission and reflection of waves on double sumerged breakwater. Methodology of research, conducted with with physical models, and then continued with theoretical studies in order to obtain the equation for calculating the coefficient of wave  transmission and wave reflection coefficient. The results showed that to calculate the magnitude of the coefficient of wave transmission and wave reflection coefficient can be approximated by the following equation: , .
Menentukan Prioritas Penanganan Ruas Jalan Nasional di Pulau Bangka Benardus Munthe, Raymond; Hario Setiadji, Bagus; Darsono, Suseno
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1, JULI 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (833.135 KB) | DOI: 10.14710/mkts.v21i1.11231

Abstract

National road are crucial to the economy and it spurs the economic development potential of the area contained in the province of Bangka Belitung Archipelago. National road lines is the busiest traffic lane linking inter-cities/regencies in Bangka Island requires maximum handling but the ability of the central government in providing funding is very limited. Prioritization of road handling must be done evenly as needed so that the purpose of the existence of these roads remains unfulfilled. The purpose of this study was to determine the priority handling of national road Lines in Bangka Island by the method of Analytical Hierarchy Process (AHP) using 6 (six) criteria. Data results of the questionnaire showed that of 6 (six) criteria taken in this study namely accessibility (19.3%) is the most dominant criteria. Followed mobility (17.6%), the condition of roads (17.1%), current road segment (16.3%), the development of regional (15.9%), and Economic of Gross Regional Domestic Product (13.8%). By entering the 6 (six) criteria to 21 segments, the roads segment that became the priority of road handling is Sungailiat – Boundary of Pangkalpinang  followed Tanjung Gudang - Lumut, and the next successive.