RIDHA, WILDAN SYAHRIR (2016) PERENCANAAN SPILLWAY MORNING GLORY PADA BENDUNGAN SEMANTOK NGANJUK. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Bangunan spillway adalah salah satu bagian komponen suatu
bendungan yang berfungsi untuk melindungi tubuh bendungan
dari bahaya pelimpasan (overtopping) pada saat banjir.
Bendungan Semantok yang menjadi objek pada perencanaan ini,
direncanakan menggunakan spillway tipe morning glory. Spillway
ini merupakan suatu struktur yang digunakan untuk
mengendalikan pelepasan air yang mengalir dari bendungan ke
daerah hilir, berbentuk menara/cerobong yang sangat efektif untuk
bendungan yang tidak memiliki ruang yang cukup untuk pelimpah
jenis lainnya.
Perencanaan ini terdiri dari analisis yang meliputi :
analisis hidrologi, hidrolika, analisis stabilitas, dan analisa
struktur. Adapun bendungan yang direncanakan memiliki periode
ulang 1000 tahun dengan luas DAS sebesar 14,30 km2 dan panjang
sungai 7,44 km serta data hujan harian sebanyak 25 tahun.
Dari hasil kajian yang diperoleh elevasi puncak bangunan
spillway adalah +128.00 Mdpl dengan debit banjir maksimum
125,16 m3/det pada elevasi +129.30. Tinggi bangunan 30,5 meter
dengan diameter puncak 6 meter dan diameter konduit 4 meter.
Panjang terowongan konduit 182,70 meter. Serta tebal dinding
0,40 meter dengan tulangan horisontal & vertikal D22-150 mm. ========== The spillway construction is one of the components of a
dam which has function to protect the dam from overtopping
during a flood. Semantok dam is the object on this plan, it is
planned to use the type of morning glory spillway. The spillway is
a structure that is used to control the release of water flowing from
the dam to the downstream areas, shaped tower / funnel which is
very effective for dams that do not have sufficient space for the
overflow of other spillway types.
This plan consists several analysis such as: analysis of
hydrology, hydraulics, stability analysis, and structural analysis.
The planned dam has a period of 1000 years with a watershed area
of 14.30 km2 and length of the river 7.44 km as well as the daily
rainfall data as much as 25 years.
From the results of the study obtained that spillway top
elevation is +128.00 MASL with maximum flood discharge 125.16
m3 / sec at an elevation of +129.30. The structure height 30.5
meters with the peak of diameter is 6 meters and a diameter of
conduit is 4 meter. The lenght of the tunnel conduit is 182.70 meter.
As well as the wall thickness of 0.40 meters with a reinforcement
horizontal and vertical D22-150 mm.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | spillway morning glory, pelimpah corong, spillway |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD491 Spillways |
| Divisions: | Faculty of Civil Engineering and Planning > Civil Engineering > 22201-(S1) Undergraduate Thesis |
| Depositing User: | - Davi Wah |
| Date Deposited: | 05 Jan 2017 04:38 |
| Last Modified: | 27 Dec 2018 06:27 |
| URI: | http://repository.its.ac.id/id/eprint/1325 |
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