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ITS » Undergraduate Theses » Teknik Sipil
Posted by eny at 09/12/2008 17:13:20  •  13264 Views


ANALISA BIAYA MINIMUM PERENCANAAN SPILLWAY WADUK MRIWONG DENGAN MENGACU KARAKTER HIDROLIK DAN HIDROLOGI

THE MINIMUM COST ANALYSIS OF MRIWONG RESERVOIR SPILLWAY BASED ON HYDRAULIC AND HYDROLOGY CHARACTERS

Created by :
SAVITRI, YANG RATRI 



SubjectBendungan
Irigasi
KeywordIrigasi
Bendungan
Spillway
Analisa biaya

Description:

Kali Cemer yang biasa disebut sebagai kali Mriwong oleh penduduk setempat merupakan sungai jenis intermitten. Daerah pematusan dari sungai ini terdiri dari daerah perkebunan kayu putih yang diselingi tanaman palawija selama musim kemarau, pada musim hujan memiliki aliran dasar yang sangat kecil sehingga setelah akhir musim penghujan tidak ada lagi air yang dapat dimanfaatkan untuk pertanian,oleh karena kondisi yang demikian maka tanaman pertanian hanya ditempatkan pada lokasi - lokasi tertentu saja yaitu lokasi yang masih terdapat sisa air untuk kebutuhan irigasi. Untuk mengatasi permasalahan tersebut dibangun suatu bendungan. Dengan adanya bendungan diharapkan dapat mengantisipasi kerugian yang terjadi akibat gagal panen serta membantu petani untuk meningkatkan hasil panen. Salah satu bangunan pelengkap sebuah bendungan adalah spillway. Dalam perencanaan bendungan Mriwong ini tidak dilakukan studi lebar spillway yang ekonomis. Sehingga diperlukan studi penghematan biaya dengan pemilihan lebar spillway yang tepat. Analisa biaya yang dilakukan merupakan kombinasi dari dua hal yaitu perubahan volume tanah urug dan volume beton yang digunakan pada pelimpah. Pada saat spillway bertambah lebar maka terjadi pengurangan volume tanah urug dan penambahan volume beton pada spillway serta jembatan yang terletak di atas spillway. Perubahan lebar spillway mengakibatkan perubahan elevasi muka air yang melimpah di atasnya mengikuti proses flood routing, yang akan berpengaruh terhadap tinggi struktur tubuh bendungan. Dari percobaan beberapa macam lebar tersebut, diperoleh lebar spillway yang membutuhkan biaya paling ekonomis adalah 11 meter dengan biaya 3.952.566.701 rupiah.


Alt. Description

Cemer river, which usually called as Mriwong river by local inhabitant, is kind of intermittent river. This river area consist of trees’s garden with turning by crops during dry season. In rainy season. it has a little current in it. Thus, in the end of rainy season, there is no more water to be used for agriculture, because of this condition, the crops was only placed in certain locations with water for irrigating By building a dam, it has solved the problem. By having a dam, it was hoped can anticipates the damage of harvest fail and help the farmerto increase their harvest result One of complemented dam building is spillway. In Mriwong dam planning, there is no study about the economical of width spillway. Thus. there must be a study about cost judgment by choosing right width spillway, the cost analysis that was conducted was combination of two main things, that is soil volume alteration and the volume of concrete which was used in sprawler. When spillway getting bigger, the volume of soil will getting smaller and there will be an increment of concrete to spillway and the bridge above it. The change of widht spillway will cause water elevation which is plentyful above it, following flood routing process, that will effects the lenght of dam structure. From width various testing, it is obtained that the width spillway which needs most economical cost is 11 meters with cost Rp. 3.952.566.701.

Contributor:
  1. Dr. Ir. EDIJATNO
Date Create:09/12/2008
Type:Text
Format:pdf
Language:Indonesian
Identifier:ITS-Undergraduate-3100007030347
Collection ID:3100007030347
Call Number:RSS 627.883 029 Sav a


Source :
Undergraduate Theses, Civil Engineering, RSS 627.883 029 Sav a, 2007

Coverage :
ITS Community Only

Rights :
Copyright @2007 by ITS Library. This publication is protected by copyright and permission should be obtained from the ITS Library prior to any prohibited reproduction, storage in a retrievel system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. For information regarding permission(s), write to ITS Library.


Publication URL :
http://digilib.its.ac.id/analisa-biaya-minimum-perencanaan-spillwaywaduk-mriwong-dengan-mengacu-karakterhidrolik-dan-hidrologi-2796.html




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Analisa , Analisa biaya , Bendungan , Irigasi , Spillway , biaya



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