Please use this identifier to cite or link to this item: https://repositori.uma.ac.id/handle/123456789/16046
Title: Evaluasi Perhitungan Dimensi Saluran dan Bangunan bagi Daerah Irigasi Buluduri
Other Titles: Evaluation of Calculation of Dimensions of Channels and Buildings for Buluduri Irrigation Area
Authors: Nababan, Michael Swandy
metadata.dc.contributor.advisor: Lubis, Kamaluddin
Rangkuti, Nuril Mahda
Keywords: curah hujan;evapotranspirasi;kebutuhan air irigasi;dimensi saluran;rainfall;evapotranspiration;irrigation water needs;dimensions of canals and dividers
Issue Date: 22-Feb-2021
Publisher: Universitas Medan Area
Series/Report no.: NPM;148110072
Abstract: D.I. Buluduri bersumber dari Sungai Sembelin dan aliran freeintake sungai lae sigelang. Distribusi kebutuhan air persawahan dan palawija dengan luasan baku yang terdata seluas 1.008 Ha, terkendala oleh faktor umur bangunan saluran yang masih banyak berupa saluran tanah. Terjadi gerusan pada saluran sehingga terjadi perubahan elevasi saluran, dan tidak jarang menyebabkan longsornya tanggul atau tebing saluran. Tujuan dari penelitian ini untuk memperoleh dimensi saluran dan bangunan bagi D.I. Buluduri yang dapat berfungsi secara optimal dan ekonomis. Alur pelaksanaan penelitian ini menganalisa curah hujan, menghitung evapotranspirasi, menganalisa kebutuhan air, mengevaluasi dimensi saluran dan bangunan bagi. Hasil evaluasi diperoleh Nilai evapotranspirasi maksimal adalah 124,52 mm/ bulan yang terjadi pada bulan agustus; dan nilai minimum adalah 94,55 mm/ bulan yang terjadi pada bulan mei. Hasil perhitungan kebutuhan air irigasi diperoleh nilai maksimum kebutuhan air irigasi yakni 0,94 lt/d/ha, dan nilai pengambilan sebesar 1,45 lt/dt/ha dengan luas fungsional yang diharapkan 1008 ha. Lebar saluran terbesar pada bangunan pengambilan dengan lebar 2,16 m’ terkecil pada bangunan bagi sadap yakni 0,7 m’. berkaitan dengan itu maka D.I Buluduri perlu direhab dan didesain dengan menggunakan pasangan batu. D.I Buluduri is sourced from the Sembelin River and the free flow into the Lae Sigelang River. The distribution of water needs for rice fields and secondary crops with a recorded standard area of 1,008 hectares is constrained by the age factor of the canal buildings, which are still mostly earth channels. There was scouring of the channel resulting in a change in the elevation of the channel, and not infrequently it caused the collapse of the embankment or channel cliff. The purpose of this study is to obtain the dimensions of the channel and building for D.I. Buluduri which can function optimally and economically. The flow of this research is to analyze rainfall, calculate evapotranspiration, analyze water requirements, evaluate the dimensions of the canals and substructures. The evaluation results obtained that the maximum evapotranspiration value was 124.52 mm / month which occurred in August; and the minimum value is 94.55 mm / month which occurs in May. The results of the calculation of irrigation water needs obtained the maximum value of irrigation water needs, namely 0.94 l / d / ha, and the extraction value of 1.45 l / s / ha with an expected functional area of 1008 ha. The largest channel width in the retrieval building with a width of 2.16 m ', the smallest in the building for tapping is 0.7 m'. related to that, D.I. Buluduri needs to be renovated and designed using masonry.
Description: 80
URI: https://repositori.uma.ac.id/handle/123456789/16046
Appears in Collections:SP - Civil Engineering

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148110072 - Michael Swandy N Fulltext.pdfCover, Abstract, Chapter I,II,III, Bibliography5.15 MBAdobe PDFView/Open
148110072 - Michael Swandy N Chapter IV.pdf
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