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ITS » Paper and Presentation » Teknik Sipil - Kimpraswil D3
Posted by aprill@is.its.ac.id at 21/08/2014 19:40:52  •  1332 Views


DESIGN OF WEIR IN NGETOS VILLAGE NGANJUK DISTRICT

Author :
PURWANTO, TRIYONO ( 3110038015 )
SUPRIONO, BAMBANG




ABSTRAK

Lahan pertanian di desa Ngetos kecamatan Ngetos kabupaten Nganjuk seluas 116 Ha sering terjadi kekeringan pada musim kemarau dikarenakan hancurnya bendung semi permanen yang berfungsi untuk mengalirkan air ke lahan pertanian akibat terjangan banjir maka diperlukan campur tangan pemerintah untuk membangun bendung baru melalui perencanaan yang baik dan desain yang kuat dengan memperhitungkan kondisi daerah dan letak geografis. Dalam perencanaan bendung tetap berdasarkan debit banjir rencana periode ulang 50 tahun Q50 sebesar 101433 mdt kondisi geografi dan geologi didapatkan dimensi bendung lebar total bendung B 21 m dan tinggi bendung 251 m dengan elevasi mercu bendung 262510. Mercu bendung dibuat tipe ogee dan kolam olak tipe bak tenggelam dengan jari-jari 2 m. dimana dari analisis stabilitas bendung stabil terhadap geser guling retak erosi bawah tanah piping dan bangunan tidak turun akibat tegangan tanah yang terjadi. Pembuatan bendung tetap diharapkan mampu meninggikan elevasi muka air agar air dapat masuk saluran irigasi melalui pintu intake secara gravitasi sehingga mampu mengairi kebutuhan air pertanian pada baku sawah yang ada.


ABSTRACT

Agricultural land in the village Ngetos district Nganjuk paddy fields covering an area of 116 ha frequent droughts in the dry season due to the destruction of semi-permanent weir serves to drain water into agricultural land by the brunt of the flood discharge then government intervention is required to build a new dam through good planning and design strong taking into account local conditions and geographical location. In the fixed weir planning based on flood discharge plan 50 year return period Q50 of 101.433 m dt geography and geology obtained weir dimensions total width of the weir B 21 meters high and 251 m weir with a summit elevation of weir 262510. Ogee weir made lighthouse type fuse type tub an the pool planned Sub Merged Bucket type with fingers 2 m.. where the dam stability analysis of stable against sliding rolling cracking erosion underground piping and the building does not get off the ground due to the voltage that occurs. Making fixed weir is expected to elevate the water level so that water can enter through the door of the intake canal so as to meet the need of water for agriculture on existing raw fields.



KeywordsBendung Ngetos; analisa hidrologi; stabilitas
 
Subject:  bendungan
Contributor
  1. Ir. PUDIASTUTI
Date Create: 21/08/2014
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-paper-31021140004112
Collection ID: 31021140004112
Call Number: RSS 627.8 Pur p


Source
Presentations, Civil Engineering, RSS 627.8 Pur 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




[ Download - Open Access ]

  1.  ITS-paper-30719-3110038015-3110038016-presentation.pdf - 2338 KB




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