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ITS » Paper and Presentation » TEKNIK SIPIL - D3
Posted by tondoindra@gmail.com at 08/12/2015 16:07:43  •  921 Views


DESIGN OF DISPERSION DAM IN THE JUGOSARI VILAGE CANDIPURO LUMAJANG EAST JAVA

PERENCANAAN DISPERSION DAM DESA JUGOSARI KECAMATAN CANDIPURO LUMAJANG JAWA TIMUR

Author :
THAHIR, ZAINAL ABIDIN ( 3111030015 )
ALI, AHMAD MAHRUS




ABSTRAK

Perencanaan Dispersion Dam di sungai Rejali yang mempunyai luas DAS 3945 km ini berlokasi di desa Jugosari kecamatan Candipuro Lumajang Jawa Timur dengan panjang sungai utama 1868 km lokasi DAS yang berada dilereng Gunung Semeru yang saat ini berstatus waspada yang artinya memiliki potensi bahaya lahar dingin lebih besar dari pada ketika berstatus normal. Kemungkinan terjadinya banjir lahar dingin pada sungai ini sangat besar menyebabkan terjadinya penumpukan sedimen di hilir sungai.Maka perlu dibangun bangunan pengendali sedimen atau Dispersion Dam. Berdasarkan perhitungan yang telah dilakukan baik analisa hidrologi dan analisa hidrolika maka didapatkan debit sungai sebesar 263188 mdet dengan lebar pelimpah Dispersion Dam 74 m tinggi total Main Dam 128 m kedalaman pondasi Main Dam 28 m panjang Apron 1673 m tebal Apron 19 m tebal mercu Main Dam dan Sub Dam 15 m tinggi total Sub Dam 37 m. Dari hasil analisa perhitungan kesetabilan bangunan Dispersion Dam aman dari guling geser retak dan turun. Dengan di bangunnya Dispersion Dam di Sungai Rejali dapat menampung sedimen sebesar 6.511.717 m sehingga bangunan di hilir Dispersion Dam di harapkan lebih aman.


ABSTRACT

Planing Rejali Dispertion Dam in the river Rejali area that has 3945 km is located in the village Jugosari Candipuro Lumajang district of East Java with a length of 1868 km main river the location of watersheds on the slopes of mount semeru current alert status which means it has the potential dangers of cold lava is greater than when the normal status. Possibility of cold lava flood on the river is very large leading to a buildup of sediment in the river downstream. It is necessary to build a building or Dispertion Dam sediment control. Based on the calculation have been carried out both the analysis of hydrology and hydraulics analysis of river discharge is obtained for 263188 msec with a width of 74 m over flow Dispertion Dam height 128 m total Main dam Main dam foundation depth of 28 m apron length is 1673 m thick apron is 19 m thick top main dam and sub dam is 15 m total height of sub dam 37 m. Based output calculation stability Dispersion Dam building secure form roll friction fissure go down. By the construction of Dispertion Dam on Rejali river it can accommodate sediment up to 6.511.717 m that can minimalized damage on another construction in downstream Rejali river.



  • Ir. PUDIASTUTI
  • KeywordsDispersion Dam; banjir
     
    Subject:  DAM
    Date Create: 08/12/2015
    Type: Text
    Format: PDF
    Language: Indonesian
    Identifier: ITS-paper-31121150008282
    Collection ID: 31121150008282
    Call Number: RSS 627.883 Tha p


    Source
    Paper and Presentation of Civil Engineering, RSS 627.883 Tha p, 2015

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    Copyright @2015 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-39944-ITS-paper-39944-3111030015-3111030026-presentation.pdf - 2070 KB




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