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All Journal KEAIRAN JURNAL KARYA TEKNIK SIPIL
Sumbogo Pranoto
Departemen Teknik Sipil FT. UNDIP JL. Prof. H. Soedarto SH., Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences

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SISTEM PERAMALAN BANJIR SECARA SPATIAL (STUDI KASUS PADA SUNGAI TUNTANG) Suharyanto Suharyanto; Sumbogo Pranoto; Hari Nugroho; Priyo Nugroho Parmantoro
KEAIRAN No.1 - Tahun 8 JULI 2001
Publisher : KEAIRAN

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Abstract

Flooding is a natural disaster which can not be prevented totally, Some countermeasures to alleviate the flooding’s damaging effects have been implemented with some deggree of succes and some with limited succes (fail). These countermeasures include normalizing the river courses, increasing its embankment, providing revetment, or providing with flood control structures. However, these countermeasures are not the only action to reduce flooding damage. An equally important action contributing to the success on reducing flood damaged is non-technical measures especially system information on flooding characteristics This non-technical measure requiring flood forcasting procedures (software, equipments, information exhange, procedures, and coordination). When the time, the places, and the magnitudes of the incoming floods can be predicted with better confidence then the affected regions and people can prepared to anticipate well before the flood occurrence. This will definitelyreduce the possible flood damages. This paper presents the development of flood forecasting function in the Tuntang River, i.e., from Glapan weir to Gubug, and Buyaran bridges. Additioanlly, the flood forecasting functions along the river, i.e., at every potentially vulnerable embankments are also presented. These functions have also been calibrated by the floods occuring on 2001.
PERENCANAAN PERBAIKAN SUNGAI BABON KOTA SEMARANG Bramantyo Yuda Perdana; Setyo Bagus Panuntun; Sumbogo Pranoto; Hary Budieny
Jurnal Karya Teknik Sipil Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flooding is a situation where areas not normally inundated with water becomes stagnant. And very adverse circumstances moriil both material as well as inhibition of transport impact on the rate of the economy of a region. Flooding problems that occurred in the city of Semarang is partly due to overflowing, one of the river is the river layer. Babon river have a length of about 17 km starting from Pucang Gading Dam downstream to the estuary through Karang Roto Dam. Babon river conditions experienced narrowing and shallowing flow leads to reduced capacity to cross the river flood discharge flow. Babon river can no longer accommodate the flood discharge that occurs especially in the rainy season so that commemorate the area around the river layer. In addition, the floods also caused the creek bank that opened for the access road so the water from the river could easily overflow. From studies and calculations have been done, solving this problem is to conduct repairs on the Babon River, by improving the flow and cross the river and make retrofitting Babon River on slopes / riverbanks prone to landslides. So as to reduce the level of flooding in the city of Semarang.
PERENCANAAN PENGENDALIAN BANJIR SUNGAI TUNTANG DI DESA TRIMULYO KABUPATEN DEMAK Iksan Maulana; Sutra Ayu Lukito; Suharyanto Suharyanto; Sumbogo Pranoto
Jurnal Karya Teknik Sipil Volume 6, Nomor 4, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Kabupaten Demak yang merupakan salah satu Kabupaten di Provinsi Jawa Tengah. Desa Trimulyo memiliki luas 4,26 km² dan jumlah penduduk sebanyak 4116 jiwa pada Desember tahun 2014. Desa Trimulyo merupakan salah satu Desa yang terletak di Kecamatan Guntur, Desa Trimulyo terbagi atas 7 dusun yaitu Dusun Kandang, Dusun Walang, Dusun Gobang, Dusun Solowire, Dusun Solondoko, dan Dusun Sindon. Desa Trimulyo merupakan salah satu daerah yang rawan terjadi banjir. Masalah utama yang dihadapi Sungai Tuntang yaitu masalah banjir dan kerusakan tanggul. Sungai Tuntang merupakan sungai yang secara periodik menyebabkan banjir di Desa Trimulyo Kecamatan Guntur, Kabupaten Demak. Seringkali pada musim penghujan tanggul pada Sungai Tuntang di Desa Trimulyo tidak mampu menahan debit, terjadi pendangkalan alur sungai, dan settlement tanggul sehingga tanggul tersebut jebol dan mengakibatkan banjir.Perbaikan penampang pada daerah aliran Sungai Tuntang dapat menjadi alternatif penanganan masalah yang tepat untuk wilayah tersebut, muka air sungai yang tinggi dan mengalami penurunan tanah. Perbaikan penampang aliran sungai Tuntang ini meliputi perencanaan perbaikan tanggul, normalisasi sungai, dan perkuatan lereng sungai. Perhitungan debit banjir rencana 25 tahun menggunakan metode Haspers. Debit banjir rencana untuk perencanaan ini adalah 828 m3/detik. Perencanaan perbaikan sungai menggunakan model HEC-RAS dengan debit rencana hasil dari perhitungan menggunakan metode Harpers. Penampang direncanakan berbentuk trapesium dengan perkuatan lereng pasangan batu kali direncanakan sedalam 5,5 m sepanjang 3,2 kilometer. Tanggul sungai direncanakan untuk menanggulangi air sungai yang melimpas akibat dari sungai yang tidak mampu menampung debit banjir. Proyek ini menelan biaya sebesar Rp115.062.587.700,00 
PENENTUAN KAPASITAS DAN TINGGI MERCU EMBUNG WONOBOYO UNTUK MEMENUHI KEBUTUHAN AIR DI DESA CEMORO Yanuar Niko Priambodo; Tomy Aziz Susiawan; Sumbogo Pranoto; Suharyanto Suharyanto
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Cemoro village is located in Wonoboyo Sub district , Temanggung District, Central Java Province with the area is 778.9 ha. There are 2.355 people in Cemoro village (1.187 male and 1.168 female). Most of the residents work as plantation farmers. In the dry season, water discharge in the Lingseng River becomes very small, so it can not meet the demand for drinking water and the irrigation needs. Based on water balance, there is a deficit around 27.140,23 m3, that certainly reduce productivity in both agriculture and social welfare. Therefore, the hydraulic structure is needed. To overcome the water deficit one of the efforts is by constructing a small dam. The design minimum capacity of the small dam is 27.140,23 m3. The gross capacity of the storage is 30.653,45 m3 which take into account of sediment storage. Based on correlation graph of elevation, volume storage, and area storage, the head elevation of spillway is +1.542 m. The head elevation of small dam is +1.545,50 m which take into account of flood water level and freeboard. By the presence of small dam, it is expected to cover the water deficit so it can increase the water supply for drinking water and irrigation of horticulture farm.
PENGARUH SEDIMETASI PADA KINERJA PENGOPERASIAN WADUK SERBAGUNA WONOGIRI Hana Umayektinisa; Niken Ajeng S.P.; Suharyanto Suharyanto; Sumbogo Pranoto
Jurnal Karya Teknik Sipil Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The operation of the reservoir can’t be avoided from the problem of sedimentation. This happens because the natural ingredients in the river sediment transport will be accommodated and deposited in the reservoir due to the dam. But not all the sediment deposited in the reservoirs will go straight into the dead storage, most of the sediment will be deposited on effective storage. Has been a lot of research and efforts to reduce the influence of reservoir sedimentation. However, little (if any) research on the effect of reservoir sedimentation in reservoir operation performance. In a study on the effect of sedimentation on the operating performance of single-purpose dam sedimentation concluded that the effect was not significant. Therefore, in this study conducted research on the effect of sedimentation in the multipurpose reservoir operational performance. This research was conducted by simulating the operation of reservoirs with different patterns of operation and conditions of sedimentation.
PENANGANAN ABRASI PANTAI DESA SEI RAJA KABUPATEN SUKAMARA KALIMANTAN TENGAH Mustofa Kamal Aziz; Seruni Adidar Lesmi; Sumbogo Pranoto; Priyo Nugroho Parmantoro
Jurnal Karya Teknik Sipil Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The problems of the coastal area in Sei Raja Beach were retreat of the coastline, sedimentation in river mouth of Raja River, destruction of existing shore protection structure such as groin and jetty which was caused of wave. The objective of the final project is to model and to design the right shore structures to protect the shore from abrasion in Sei Raja Beach. The area which planned is around 3,1 km include the river mouth of Raja River. The analysis result of waverose shows that dominant wave comes from the south. It is about 68,61% from the data in 23 years. The current movement pattern and tide is simulated by the SMS V.10 program (Surface Water Modelling System). The prediction of coastline changed is simulated by GENESIS (Generalized Model for Simulating Shoreline Change) with wave input per-hour for a year. The shoreline protection is analyzed based on function and economical value. The combination between revetment, jetty, groin and breakwater is chosen to protect the shore of Sei Raja. The western revetment are designed along 522 m and the eastern revetment are designed along 651 m. The western revetment and the eastern revetment are made of concrete cube for armour layer and crushed stone for core layer. Twins jetty which made of concrete cubes for armour layer and crushed stones for secondary and core layer are built with a length of 150 m. The groin is planed on the west side with the length of 75 m. The groin is used of crushed stones for armour and core layer. The existing breakwater is rehabilitated by adding concrete cubes.
PENATAAN SISTEM SUNGAI SENGKARANG SEBAGAI SALAH SATU PENANGANAN ROB KOTA/ KABUPATEN PEKALONGAN Muhammad Firqotul Ulum; Aji Perdana Wira Utama; Suripin Suripin; Sumbogo Pranoto
Jurnal Karya Teknik Sipil Volume 4, Nomor 1, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Tidal flood which’s occured at Pekalongan City/District entered into settlement through a river that empties into the sea, beach and drainage. This condition will be critical when at the same time the highest tides and great flood. Tidal flood is predicted to increase due to rising sea levels ranged from 4,46 to 4,60 mm/year and there’s land subsidence about 3 cm/year. Tidal flood which’s enter into settlements with the river one of them occurred at Sengkarang river system (Sengkarang river, Meduri river and Bremi river). The occurrence of runoff in rivers such as the capacity of the river current is smaller than the existing discharge. To overcome this, the rivers will be evaluated its capacity to discharge plans return period of 25 years (Q25) which is accompanied by tidal conditions. Analysis is needed to evaluate the capacity of the river including hydrological, tidal and hydraulic analysis. Hydrological analysis is used to calculate the flood discharge plan with the HSS Gama 1 method. Tidal analysis is used to determine the height of the sea surface elevation. Hydraulic analysis is used to calculate the capacity and dimensions of the river using HEC-RAS 4.1 software. HEC-RAS simulation performed with two scenarios. The first scenario is the merge of the downstream of Meduri river and Bremi river with Sengkarang river. The second scenario is the separate of the downstream of Meduri river and Bremi river with Sengkarang river. Results from HEC-RAS simulation with discharge plans Q25 and tidal conditions/HHWL for existing cross-section of the river showed that hydraulically separated model is more profitable than merge model because the water level in separated scenario is lower than the merge scenario and estimated from sedimentation will better because its estuary has been separated.
KAJIAN PENGARUH SEDIMENTASI PADA KINERJA PENGOPERASIAN WADUK KEDUNG OMBO Anggita Inges Wari; Bimby Octavia Kurniasari; Sumbogo Pranoto; Suharyanto Suharyanto
Jurnal Karya Teknik Sipil Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Kedung Ombo is a multi-purposes reservoir used for flood control, hydropower generation, irrigation services, raw water supply, fisheries and tourism. To meet the water demand (demand), the performance of the reservoir should run well. Over time, sedimentation in reservoir increases. Sedimentation problems may affect the operating performance of the reservoir. If sedimentation increases, the effective volume will be reduced then as a result water demand (demand) can not be fulfilled. Therefore, a further study on operating performance Kedung Ombo Reservoir in relation to sedimentation is needed . The results showed that the simulation the best method SOP for some conditions of sedimentation, in year-on-0, the 15th year, and year-to-27 is not seen a significant difference from the value of the operating performance. So it can be concluded that sedimentation is not very big significant on the operation of the reservoir.
PERENCANAAN LONG STORAGE TREMBULREJO, KABUPATEN BLORA Brian Ridhlo Adila; Ahmad Fauzi Rosandi; Suripin Suripin; Sumbogo Pranoto
Jurnal Karya Teknik Sipil Volume 7, Nomor 3, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAK                                        Desa Trembulrejo merupakan salah satu desa di Kecamatan Ngawen, Kabupaten Blora. Desa Trembulrejo berjarak 15 km dari pusat Kabupaten Blora dan memiliki luas wilayah 398 ha dengan penggunaan lahan didominasi oleh tegalan dan sawah dengan luasan masing-masing 187 ha dan 151 ha. Begitu luasnya lahan pertanian membuat sebagaian besar masyarakat Desa Trembulrejo bekerja sebagai petani. Desa Trembulrejo terkenal sebagai salah satu desa penghasil padi. Dalam beberapa tahun terakhir para petani  setempat mengalami gagal panen. Masalah tersebut disebabkan kurangnya suplai air irigasi saat musim kemarau.Sebuah long storage akan dirancang di alur Sungai Trembulrejo untuk mengatasi masalah kurangnya suplai air irigasi yang terjadi. Long storage direncanakan menampung sebagian air di sungai Trembul saat musim penghujan kemudian air tampungan digunakan saat musim kemarau. Perencanaan Long Storage Trembulrejo meliputi konstruksi bangunan utama dan bangunan pelengkap. Perhitungan debit banjir rencana didesain menggunakan debit rencana 50 tahun sebesar 280,81 m3/detik. Konstruksi bangunan long storage direncanakan menggunakan material beton K275 serta perkuatan dinding menggunakan dinding beton K175 dan bronjong. Bangunan pelimpah memiliki 5 buah pintu air dari skot balk dengan material kayu jati. Dari hasil perencanaan didapatkan volume tampungan sebesar 14,000 m3, elevasi puncak mercu + 63,5 m, tinggi mercu 2,5 m, direncanakan dapat melayani kebutuhan air irigasi untuk lahan seluas 80 ha. Pembangunan Long Storage Trembulrejo diperkirakan menelan biaya Rp 2.754.249.000,00 dengan masa pengerjaan 40 minggu.
PENGAMANAN PANTAI WIDURI KABUPATEN PEMALANG M. Ilyas Muzani; Naina Haque H.; Sumbogo Pranoto; Priyo Nugroho
Jurnal Karya Teknik Sipil Volume 5, Nomor 1, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The coastal erosion at Widuri beach along ± 2 km carried a relatively large impacted for public coastal areas. Waves in coastal areas resulted breakdown existing coastal protection structure and retreat of the shoreline. Coastal protection efforts to overcome these problems are reviewed based on the results of the flow simulation, waves and prediction of changes in the shoreline adapted to the existing condition using a numerical approach. Approach method performed by SMS program (Surface water Modeling System) for the simulation of flow and GENESIS (GENEralized models for SImulating Shoreline change) for the prediction simulation of shoreline changes. Earnings results from simulations program and data analysis are used as a basic design protection structure, planned coastal protection that is seawall modifications, rehabilitation the existing revetment, addition of revetment along 120 m and addition two offshore breakwater along 200 m with distance between 90 m perpendicular to wave direction at a depth of 1 m east from Widuri tourist beach.
Co-Authors Ahmad Fauzi Rosandi Aji Perdana Wira Utama Anggita Inges Wari Berlian Swindy Bernadeta Andini Bimby Octavia Kurniasari Bramantyo Yuda Perdana Brian Ridhlo Adila Erick Chendratama Hana Umayektinisa Hari Nugroho Hary Budieny I Putu Dian Arie Wibawa Ihwan Nul Hakim Iksan Maulana M Fiqigozari M. Ilyas Muzani Maemonah, Maemonah Muhammad Firqotul Ulum Mustofa Kamal Aziz Naina Haque H. Niken Ajeng S.P. Pradnya Paramita Soka Pudyawati Priyo Nugroho Priyo Nugroho Parmantoro Priyo Nugroho Parmantoro Priyo Nugroho Parmantoro Rahadianti Kusuma Dewi Romi Setiawan S. Suripin Seruni Adidar Lesmi Setyo Bagus Panuntun Sony Lesmana Sriyana Sriyana Suharyanto Suharyanto Suharyanto Suharyanto Suharyanto Suharyanto Sutra Ayu Lukito Tomy Aziz Susiawan Yanuar Niko Priambodo