DOCSLIB.ORG

ANALISIS KAPASITAS SUNGAI JENEBERANG BAGIAN HILIR Zul Hidayat1) Dan Muh Abdillah Dulil2)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ANALISIS KAPASITAS SUNGAI JENEBERANG BAGIAN HILIR Zul Hidayat1) Dan Muh Abdillah Dulil2) iv ANALISIS KAPASITAS SUNGAI JENEBERANG BAGIAN HILIR Zul Hidayat1) dan Muh Abdillah Dulil2) 1) Program Studi Teknik Pengairan Universitas Muhammadiyah Makassar, [email protected] 2) Program Studi Teknik Pengairan Universitas Muhammadiyah Makassar, [email protected] Abstrak Sungai Jeneberang merupakan sungai yang terletak di kabupaten Gowa Provinsi Sulawesi Selatan. Sungai Jeneberang memiliki panjang 78,75 km mengalir dari timur ke barat dari Gunung Bawakaraeng dan Gunung Lompobattang menuju ke Selat Makassar, dengan luas DAS 727 km2. Pada bulan Januari 2019 terjadi luapan pada Sungai Jeneberang akibat debit air di Bendungan Bili- bili, Kabupaten Gowa, meningkat hingga 101,87 meter karena intensitas hujan yang tinggi, yang mencapai debit air di sungai Jeneberang meninggkat hingga 2.240 m3/detik.. Untuk mengkaji ulang kapasitas pengaliran sungai Jeneberang pasca bencana banjir digunakan softwere HEC-RAS. Tapi sebelumnya, simulasi hidrologi perlu dilakukan untuk mengetahui debit banjir rencana hingga kala periode ulang 200 tahun dan metode yang digunakan adalah HSS Nakayasu. Berdasarkan hasil pengolahan data dengan menggunakan HSS Nakayasu diperoleh hasil untuk Q25 sebesar 1879,0686 m3/detik. Debit yang diperoleh selanjutnya diinput ke softwere HEC-RAS. Berdasarkan hasil simulasi dari 35 cross dengan menggunakan HEC-RAS, ditemukan beberapa penampang sungai yang kapasitas alirannya tidak mampu menampung debit banjir Q25, seperti pada patok 21 sampai patok 35 yang berada di jarak 10 sampai 16 kilometer dari muara sungai Jeneberang (hulu Jembatan kembar poros Takalar) yang beberapa penampang sungainya ada yang tidak bertanggul. Kata kunci : Debit Banjir, HSS Nakayasu, Kapasitas Aliran, HEC-RAS. Abstract Jeneberang River is a river located in Gowa Regency, South Sulawesi Province. Jeneberang River has a length of 78.75 km flowing from east to west from Mount Bawakaraeng and Mount Lompobattang heading to the Makassar Strait, with an area of 727 km2 watershed. In January 2019 there was an overflow in the Jeneberang River due to water discharge in the Bili-bili Dam, Gowa Regency, increasing to 101.87 meters due to high rainfall intensity, which reached the water discharge in the Jeneberang River which increased to 2,240 m3/second. Re-flowing capacity of the Jeneberang river after the flood disaster was used the HEC-RAS software. But before that, hydrological simulations need to be carried out to find out the planned flood discharge up to the 200 year return period and the method used is the HSS Nakayasu. Based on the results of data processing using HSS Nakayasu, the Q25 results were 1879.0686 m3/sec. The obtained debit is then inputted to the HEC-RAS software. Based on the simulation results of 35 crossings using HEC-RAS, it was found several cross sections of the river whose flow capacity was unable to accommodate the Q25 flood discharge, such as in peg 21 to peg 35 wich is 10 to 16 kilometers from the mouth of the Jeneberang river (upstream of Takalar's twin shaft bridge) which some of the river cross sections were not bearded. Keywords : Flood Discharge, HSS Nakayasu, Flow Capacity, HEC-RAS. .
Load more

Recommended publications
  • Report on Biodiversity and Tropical Forests in Indonesia
    Report on Biodiversity and Tropical Forests in Indonesia Submitted in accordance with Foreign Assistance Act Sections 118/119 February 20, 2004 Prepared for USAID/Indonesia Jl. Medan Merdeka Selatan No. 3-5 Jakarta 10110 Indonesia Prepared by Steve Rhee, M.E.Sc. Darrell Kitchener, Ph.D. Tim Brown, Ph.D. Reed Merrill, M.Sc. Russ Dilts, Ph.D. Stacey Tighe, Ph.D. Table of Contents Table of Contents............................................................................................................................. i List of Tables .................................................................................................................................. v List of Figures............................................................................................................................... vii Acronyms....................................................................................................................................... ix Executive Summary.................................................................................................................... xvii 1. Introduction............................................................................................................................1- 1 2. Legislative and Institutional Structure Affecting Biological Resources...............................2 - 1 2.1 Government of Indonesia................................................................................................2 - 2 2.1.1 Legislative Basis for Protection and Management of Biodiversity and
    [Show full text]
  • Capacity Building Project in the Water in Indonesia
    ASIAN DEVELOPMENT BANK Operations Evaluation Department PROJECT PERFORMANCE EVALUATION REPORT FOR INDONESIA In this electronic file, the report is followed by Management’s response. Performance Evaluation Report Project Number: 26190 Loan Number: 1339-INO August 2006 Indonesia: Capacity Building Project in the Water Resources Sector Operations Evaluation Department ABBREVIATIONS ADB – Asian Development Bank BAPEDALDA – Badan Pengendalian Dampak Lingkungan Daerah (provincial environment agency) BAPPENAS – Badan Perencanaan Pembangunan Nasional (National Development Planning Agency) CPO – central project office DGWR – Directorate General of Water Resources IHA – in-house adviser IRM – Indonesia Resident Mission m3 – cubic meters MPW – Ministry of Public Works NAD – Nanggroe Aceh Darussalam NGO – nongovernment organization NSIASP – Northern Sumatra Irrigated Agriculture Sector Project OED − Operations Evaluation Department OEM − operations evaluation mission PAMST – Policy Analysis and Management Support Team PCR – project completion report PISP – Participatory Irrigation Sector Project PP – peraturan pemerintah (national regulation) PPTA – project preparatory technical assistance PWRS – provincial water resources service RBO – river basin organization Rp – rupiah RRP – report and recommendation of the President TA – technical assistance WATSAL – Water Sector Adjustment Loan WATSAP – water sector adjustment program WRDC – water resources data center WRDM – water resources development and management GLOSSARY balai – provincial river basin
    [Show full text]
  • Chapter 6 Hydrology and Water Balance Study
    The Study on Capacity Development for Jeneberang River Basin Management CHAPTER 6 HYDROLOGY AND WATER BALANCE STUDY 6.1 Meteorological Conditions in Jeneberang River Basin The Jeneberang river basin experiences a tropical climate, showing high and rather constant air temperature throughout the year but with a distinct variation in rainfall in the wet and dry seasons during the year. The northwest monsoon prevails from December to June, while the southeast monsoon extends from May to November. The northwest monsoon has a high moisture content, which is precipitated on Mt. Bawakaraeng, Mt. Lompobatang and their adjacent mountain ranges at the west edge of the river basin. As a result, the mountainous/hilly area in particular receives a large volume of rainfall during the northwest monsoon period. On the other hand, the river basin receives little rainfall during the east monsoon due to the sheltering effect by the mountain ranges. According to the average monthly rainfall records at four gauging stations, namely Malino, Bili-Bili, Kampili and Bonto Suggu in and around Jeneberang River basin, the monthly rainfall in a rainy season from December to May is far less than in the dry season from June to November, as listed below. About 80 % to 90 % of the annual rainfall is received from December to May, and the remainder in the dry season. Monthly Rainfall in Jeneberang River Basin Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec. Total Malino 864 706 532 439 216 145 91 25 49 101 381 735 4284 Bili-Bili 677 529 448 336 130 60 70 17 63 88 356 615 3389 Kampili 656 465 330 235 94 58 28 16 36 107 346 556 2926 Bonto Sunggu 669 410 273 140 89 47 23 6 24 83 203 482 2449 In addition to the above large variations in monthly rainfall, Jeneberang river basin has a large spatial variation in rainfall due to the topographic effect of the mountain ranges in the eastern part of the river basin.
    [Show full text]
  • A Study on Flow Resistance and Mobility Index at Palu River
    International Journal of Applied Engineering Research ISSN 0973-4562 Volume 12, Number 10 (2017) pp. 2604-2612 © Research India Publications. http://www.ripublication.com A Study on Flow Resistance and Mobility Index at Palu River * Alifi Yunar, ** Muhammad Saleh Pallu, *** Farouk Maricar, **** Rita Lopa *Doctoral Course Student of Civil Engineering Department, Hasanuddin University, Makassar, 90245 **Professor, Civil Engineering Department, Hasanuddin University, Makassar, 90245 *** Professor, Architectural Engineering Department, Hasanuddin University, Makassar, 90245 ****Associate Professor, Civil Engineering Department, Hasanuddin University, Makassar, 90245 Abstract Furthermore, the friction factor equation available in literature has been used widely by hydraulic engineers. The following Flow Resistance and Mobility Index are theoretical equations analysis proposes the friction factor relation in the framework derived for nearbed region, in most cases, these equations of the Manning’s equation, Chezy’s Equation, Darcy’s have been studied using experimental methods. Thus, many formulae and other important flow parameters, sediment consider them as empirical equations. The flow resistance and characteristics and fluid characteristics with objective of mobility index were using equations parameters, such as water taking advantage of the widespread use with advanced depth and particle diameter. However, parameters of Flow research in alluvial river. Moreover, knowledge of the Resistance and Mobility Index is an index representing bed resistance characteristics of alluvial streams is of great value resistance related to relative roughness and furthermore when dealing with the location of bridges, training works, influences of stream velocity. This research was conducted in flood control works, irrigation, channel improvement, the lower reaches of the Palu river, around four research backwater purpose due to confluences, mathematical and locations.
    [Show full text]
  • Analysis of Fertility Rate and Water Quality in the Jeneberang River, Gowa Regency, Indonesia
    International Journal of ChemTech Research CODEN (USA): IJCRGG, ISSN: 0974-4290, ISSN(Online):2455-9555 Vol.12 No.02, pp 95-103, 2019 Analysis of Fertility Rate and Water Quality in The Jeneberang River, Gowa Regency, Indonesia Patang*1 1Universitas Negeri Makassar, Indonesia Abstract : This research aims to know fertility rate based on nitrogen, phosphate and eutrification content and water quality content along the Jeneberang River in Gowa Regency, Indonesia. This research was conducted by taking samples at five observation stations in the waters of the Jeneberang River, Gowa Regency, Indonesia by measuring biological parameters, namely community structure and plankton abundance as the main parameter, while as a supporting parameter, the water quality parameters are physical and chemical parameters, namely temperature, pH, dissolved oxygen, nitrogen (N) and phosphate (PO4). Data obtained from observations, presented in the form of tables and graphs and analyzed by descriptive analysis. Keywords : Fertility, Water Quality, Jeneberang River, Plankton. Introduction Naturally, rivers can be polluted only on the surface of the water, on a large river with heavy water flows, a small amount of contamination material will undergo dilution so the pollution level is very low. This causes the consumption of dissolved oxygen needed by aquatic life and biodegradation will be updated quickly, but sometimes a river experiences heavy pollution so that the water contains contamination material one of which is phosphate 11. The Jeneberang River is one of the rivers located in Gowa Regency, Indonesia has a length of 75 km with a watershed area of 727 Km2 and sourced from Mount Bawakaraeng at an elevation of +2,833.00 MSL10.
    [Show full text]
  • 1 APPENDIX 4 BANGLADESH General Information* Main Rivers
    APPENDIX 4 BANGLADESH General Information* Surface area: 143,998 km2 Population (1995): 118,000,000 GDP (1996/1997): US$ 14,000 million Agricultural GDP (1996/1997): US$ 4,508 million Capture Fisheries as % of GDP1: 1.88% Aquaculture as % of GDP1: 2.69% Indicative exchange rate (1999) US$ 1 = Tk 48.5 * FAO World Fisheries Statistics – Country profile, 1999 1 Asia-Pacific Fishery Commission (2005) Main Rivers** Total area Rivers and estuaries 4,047,316 ha Total Length of 700 Rivers 22,155 km The Padma-Ganges and its distribution System Annual catch: 6,489 tonnes (1996-97)3(capture) i) Ganges, Padma 305 km Surface area: 69,481 ha2 Annual catch: 1,641 tonnes2 (1991-92) 50.6 kg/ha2 (1991-92) 0.34% contribution to production2 (1991-92) ii) Mathabhanga 128 km iii) Ichhamati 285 km iv) Bhairab 559 km v) Kumar 443 km vi) Kobadak 280 km vii) Chitra 188 km viii) Nabaganga 210 km ix) Garai, Madhumati 314 km x) Arial Khan 266 km The Meghna and Surma System Surface area: 73,999 ha2 Annual catch 84,737 tonnes (1989-90) 54,244 tonnes2 (1991-92) 1,369.60 kg/ ha2 (1991-92) 11.3% contribution to production2 (1991-92) i) Surma 350 km ii) Kushiyara 110 km 1 Jamuna-Brahmaputra System Surface area: 73,666 ha2 Annual catch: 2,280 tonnes (1989-90) i) Brahmaputra 350 km Annual catch: 505 tonnes (1989-90) 391 tonnes2 (1991-92) 0.081% contribution to production2 (1991-92) ii) Jamuna 531 km Annual catch: 1,775 tonnes (1989-90) 2,253 tonnes2 (1991-92) 30.58 kg/ ha2 (1991-92) 0.46% contribution to production2 (1991-92) Other Rivers in West region i) Nagar 238 km ii)
    [Show full text]
  • Erosion Processes of the Collapsed Mass of the Gigantic Landslide of Mt
    E-4 Fourth International Conference on Scour and Erosion 2008 Erosion processes of the collapsed mass of the gigantic landslide of Mt. Bawakaraeng, Sulawesi, Indonesia in 2004 revealed by multi-temporal satellite images Takao YAMAKOSHI 1, Yoshikazu SHIMIZU 2, Nobutomo OSANAI 3 , Katsuo SASAHARA 4 and Ken TSUTSUI 5 1Member of JSCE, Public Works Research Instiute (1-6 Minamihara, Tsukuba, Ibaraki 305-8516, Japan) E-mail:[email protected] 2Member of JSCE, National Institute of Land, Infrastructure and Management (1 Asahi, Tsukuba, Ibaraki 305-0804, Japan) E-mail: [email protected] 3Member of JSCE, National Institute of Land, Infrastructure and Management (1 Asahi, Tsukuba, Ibaraki 305-0804, Japan) E-mail: [email protected] 4Member of JSCE, Professor, Faculty of Agr., Univ. Kochi (200 Mononobeotsu, Nangoku, Kochi 783-8502, Japan) E-mail: [email protected] 5Member of JSCE, NTT Data, Co., Ltd. (3-3-9 Toyosu, Koto-ku, Tokyo 135-8671, Japan) E-mail: [email protected] On March 26, 2006, a gigantic landslide occurred on the caldera wall of Mt. Bawakaraeng, Indonesia. This paper quantitatively shows the temporal change in gully erosion and sediment yield from the huge amount of the deposit of the landslide by analyzing satellite images. Firstly, the landslide buried the original river channel completely. In the next year, gully erosion dominated the entire landslide deposit, and parts of the gully bed were found to have eroded by up to 60 m. The total amount of sediment discharged from the landslide deposit was estimated to be 36 million m3.
    [Show full text]
  • Fakultas Teknik
    SKRIPSI EVALUASI BANGUNAN SABO DAM 7.5 DI HULU SUNGAI JENEBERANG Oleh : FARID BUDIARTO FAHRULLAH SYAH PUTRA 105 81 1990 13 105 81 2094 14 PROGRAM STUDI TEKNIK PENGAIRAN FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH MAKASSAR 2020 EVALUASI BANGUNAN SABO DAM 7.5 DI HULU SUNGAI JENEBERANG Diajukan Untuk Memenuhi Salah Satu Syarat Guna Memperoleh Gelar Sarjana Teknik Sipil Fakultas Teknik Universitas Muhammadiyah Makassar Disusun dan diajukan oleh : FARID BUDIARTO FAHRULLAH SYAH PUTRA 105 81 1990 13 105 81 2094 14 PROGRAM STUDI TEKNIK PENGAIRAN FAKULTAS TEKNIK UNIVERSITAS MUHAMMADIYAH MAKASSAR 2020 EVALUASI BANGUNAN SABO DAM 7.5 DI HULU SUNGAI JENEBERANG Fahrullah Syah Putra1), Farid Budiarto1), Nenny T. Karim2), Mahmuddin2) 1)Mahasiswa Program Studi Teknik Pengairan Fakultas Teknik Universitas Muhammadiyah Makassar 2)Dosen Program Studi Teknik Pengairan Fakultas Teknik Universitas Muhammadiyah Makassar Teknik Pengairan Fakultas Teknik Universitas Muhammadiyah Makassar Jl. Sultan Alauddin No. 259, Makassar 90221, Indonesia e-mail: [email protected], [email protected] ABSTRAK Sabo Dam 7.5 merupakan sabo dam yang selesai dibangun pada tahun 2010 di hulu sungai Jeneberang. Sabo dam ini merupakan sabo dam tipe terbuka yang juga berfungsi untuk menghambat aliran debris (aliran debris adalah aliran sungai dengan konsentrasi sedimen tinggi pada sungai dengan kemiringan sangat curam, aliran ini seringkali membawa batu-batu dan batang pohon), sekaligus mencegah gerakan laju sedimen agar tidak membahayakan dan menimbulkan kerugian. Berdasarkan hasil pengamatan di lapangan keadaan Sabo Dam 7.5 sudah mengalami kerusakan berat seperti berkarat serta patahnya besi pada bangunan sabo dam yang disebabkan karena pergeseran tumpukan sedimen yang tak kunjung dikeruk. Tujuan dari penelitian ini adalah untuk mengetahui kondisi dan besar volume sedimen yang terjadi pada bangunan Sabo Dam 7.5 selama 10 tahun.
    [Show full text]
  • (HVSR) Method of Makassar, South Sulawesi
    International Journal of Engineering and Science Applications ISSN: 2406-9833 IJEScA Analysis of Microtremor Data Using Horizontal to Vertical Spectral Ratio (HVSR) Method of Makassar, South Sulawesi 1*R. Jamroni, 2A.M. Imran, , 2B. Azikin 1Master Student of Geology Department, Hasanuddin University *Meteorological, Climatological and Geophysical Agency, Makassar ([email protected]) 2Geology Department, Faculty of Engineering, Hasanuddin University ([email protected]) ABSTRACT Makassar has experienced earthquakes indicating that the city is an area vulnerable to earthquake hazards. The regional tectonic setting supports the hazard in which several major faults develop surrounding the area. Earthquake events in the Makassar Strait of 4.5 SR in December 2015 is one of the hazard in this area. However not all the area was shaking at the same magnitude. The assumption is the different rock formation composing Makassar. Data taken from microtremor measurement supported by coring suggest a dominant frequency distribution has a significant relationship with the rock formation. Low dominant frequency arose at the area with thin sediment deposit (dominantly Camba Volcanic rock) and a high dominant frequency value came up at the area with thick sediment deposits (alluvial). High seismic susceptibility index is found in thick sediment deposit. The area consists of interlayering between sand and clay and has shallow ground water table. On the other hand low vulnerability index is found in thin sediment deposit. It consists dominantly of tuff of Camba Volcanic Rock and has deep groundwater table. Keywords: HVSR, Seismic Vulnerability Index, Sediment thickness 1. INTRODUCTION The degree of damage caused by Makassar city is one of the cities in earthquakes in a place is influenced by South Sulawesi which is prone to earthquake several factors such as earthquake due to its location surrounded by several mechanism, magnitude, depth, epicenter major fault such as West and East Walanae distance and local geological conditions [6].
    [Show full text]
  • Hartanto., Tjahjono A., 2020 Plankton Indexes and Heavy Metal Pollution in Kendal Coastal Waters, Indonesia
    Plankton indexes and heavy metal pollution in Kendal coastal waters, Indonesia Hartanto, Agus Tjahjono Engineering Department, Inland Water and Ferries Transport, Polytechnic of Palembang, Palembang, South Sumatera, Indonesia. Corresponding author: A. Tjahjono, [email protected] Abstract. Kendal port is regarded as a new economic area and an environmental regulation for a sustainable aquatic environment is needed. This research aimed to analyze the abundance of phytoplankton and zooplankton, the evenness index, diversity and dominance index, pollution index and environmental enforcement in 4 stations from the port. Based on the STORET method, it was found that stations 1 and 2 were classified as class D, poor, while stations 3 and 4 were classified as class C, meaning that the water quality was considered moderate. On the other hand, the results indicate that stations 1 and 2 are heavily polluted, whereas stations 3 and 4 are lightly polluted. Six classes of phytoplankton were found, while only 2 classes of zooplankton were discovered. The diversity index of phytoplankton showed that the water quality was moderate. However, the diversity index of zooplankton shows a heavily polluted water. In terms of evenness index, phytoplankton was relatively distributed, whereas the zooplankton evenness index was low. The dominance of phytoplankton was regarded as normal, but some species dominate in case of zooplankton. Thus, the regional government should strive for the enforcement of environmental regulations. Key Words: Kendal coastal waters, phytoplankton, pollution index, zooplankton. Introduction. Kendal Regency is a district in Central Java Province. It is located at 109°40'-110°18'E and 6°32'-7°24'S.
    [Show full text]
  • Badan Koordinasi Keamanan Laut
    REPUBLIC OF INDONESIA List of Medium-Term Planned External Loans (DRPLN-JM) 2011-2014 - 2nd Book - Ministry of National Development Planning/ National Development Planning Agency nd 2 Book - List of Medium-Term Planned External Loans (DRPLN-JM) 2011-2014 List of Project and Technical Assistance Government Internal Control Agency ...................................................................................... 1 1. State Accountability Revitalization (STAR) ................................................................................. 3 Batam Indonesian Free Zone Authority .................................................................................... 5 2. Batu Ampar Transshipment Port Development Project ............................................................. 7 3. The Development of Sewerage System in Batam Island ............................................................ 9 Ministry of Religious Affair ..................................................................................................... 11 4. The Development of Four State Institute of Islamic Studies (IAIN) Project .......................... 13 Ministry of Home Affairs .......................................................................................................... 15 5. National Program for Self-Reliant Rural Community Empowerment ................................... 17 6. Simeuleu Physical Infrastructure - Phase II ............................................................................... 19 Ministry of Marine Affairs and Fisheries..............................................................................
    [Show full text]
  • Directors: Ir. Widagdo, Dipl.HE Hisaya SAWANO Authors
    Directors: Ir. Widagdo, Dipl.HE Hisaya SAWANO Authors: Ir. Sarwono Sukardi, Dipl.HE Ir. Bambang Warsito, Dipl.HE Ir. Hananto Kisworo, Dipl.HE Sukiyoto, ME Publisher: Directorate General of Water Resources Yayasan Air Adhi Eka i Japan International Cooperation Agency ii River Management in Indonesia English Edition English edition of this book is a translation from the book : “Pengelolaan Sungai di Indonesia” January 2013 ISBN 978-979-25-64-62-4 Director General of Water Resources Foreword Water, as a renewable resource, is a gift from God for all mankind. Water is a necessity of life for creatures in this world. No water, no life. The existence of water, other than according to the hydrological cycle, at a particular place, at a particular time, and in particular quality as well as quantity is greatly influenced by a variety of natural phenomena and also by human behavior. Properly managed water and its resources will provide sustainable benefits for life. However, on the other hand, water can also lead to disasters, when it is not managed wisely. Therefore, it is highly necessary to conduct comprehensive and integrated water resources management efforts, or widely known as “Integrated Water Resources Management”. In the same way, river management efforts as part of the river basin integrated water resources management, include efforts on river utilization, development, protection, conservation and control, in an integrated river basin with cross-jurisdiction, cross-regional and cross- sectoral approach. This book outlines how water resources development and management in several river basins are carried out from time to time according to the existing situations and conditions, Besides, it covers various challenges and obstacles faced by the policy makers and the implementers in the field, The existing sets of laws and regulations and the various uses and benefits are also discused.
    [Show full text]