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ITS » Paper and Presentation » Teknik Sipil - Kimpraswil D3
Posted by aprill@is.its.ac.id at 21/08/2014 22:03:00  •  1277 Views


DESIGN OF SEMARANGAN WEIR TRENGGALEK REGENCY

Author :
RAHMAN, KHAIRUL ( 3110038008 )
HARKO




ABSTRAK

Bendung Semarangan terletak di Kali Tawing Desa Bendoagung Kecamatan Kampak Kabupaten Trenggalek. Kali Tawing merupakan salah satu sungai yang selalu berair sepanjang tahun di Kabupaten Trenggalek. Air dari Bendung Semarangan ini digunakan untuk mencukupi kebutuhan air daerah irigasi DI Semarangan dengan areal sawah seluas 90 Ha. Pada tahun 2010 bendung ini hancur akibat terjangan banjir. Perencanaan ulang bendung didasarkan pada debit banjir rencana dengan periode ulang 50 tahun Q50. Debit rencana mengunakan data curah hujan seri 17 tahun dari 3 tiga stasiun curah hujan. Hujan rata rata ditentukan dengan metode Theissen Polygon didapat 9462 mm dan hujan rencana dengan Log-Persson tipe III serta dengan metode Nakayasu didapat Q50 sebesar 32367 m3det. Berdasarkan Q50 kondisi geografi dan geologi didapatkan dimensi bendung lebar total bendung B yaitu 44 meter dan tinggi bendung 235 m dengan elevasi mercu bendung 11310. Mercu bendung direncanakan tipe bulat kolam olak direncanakan tipe bak tenggelam dengan jari jari 4 m. Dari analisis stabilitas tubuh bendung dalam kondisi stabil terhadap geser guling erosi bawah tanah piping retak dan bangunan tidak turun. Selain itu juga dilakukan peningkatan jaringan irigasi dari sederhana ke teknis dengan melengkapi jaringan irigasi dengan bangunan pengatur dan bangunan pengukur.


ABSTRACT

Semarangan weir located in Tawing river the village of Bendoagung district of Kampak Trenggalek. Tawing river is one of the rivers running water throughout the year in the Regency of Trenggalek. Water from the Semarangan dam is used for meet the water needs of irrigation areas DI Semarangan with rice acreage of 90 ha. In 2010 the dam was destroyed by the brunt of the flooding. Re-planning based on the dam flood discharge plan with a return period of 50 years Q50. Discharge plan using rainfall data series of 17 years of 3 three of rainfall stations. The average rainfall is determined by Theissen Polygon method obtained 94.62 mm rain plans to Log -Persson type III and the method of Nakayasu Q50 obtained 323.67 m3sec. Based on the Q50 the geography and geology obtained weir dimensions total width of the weir B is 44 meters high and 235 m with elevation weir 113.10 lighthouse. Dam planned summit round type an the pool planned Sub Merged Bucket type with fingers 4 m. From the analysis of the stability the dam body in a stable condition against sliding rolling underground erosion piping crack and the building does not go down. It also made improvement of irrigation networks from modest to technical with completed the irrigation network by building control and building measure.



Keywordsbendung semarangan; analisa hidrologi; stabilitas
 
Subject:  bendungan
Contributor
  1. Ir. Ismail Sa’ud,M.MT
Date Create: 21/08/2014
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-paper-31021140004113
Collection ID: 31021140004113
Call Number: RSS 627.8 Rah p


Source
Presentations, Civil Engineering, RSS 627.8 Rah p, 2014

Coverage
ITS Community

Rights
Copyright @2014 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-paper-30721-3110038008_3110038013-presentation.pdf - 3322 KB




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