Perencanaan Kantong Lumpur pada Proyek Pembangunan Bendung Sei Padang D.I Bajayu Kota Tebing Tinggi Sumatera Utara

Abstract

Although there is an effort to plan a building that takes a retrieval building and sediment taker that can prevent the sediment to enter into the irrigation channels, there are smooth particles enter into the channel. To prevent this sediment is not settle in the all irrigation channels, the beginning part in primary channel exactly behind the retrieval that has planned to work as a sand trap. A sand trap is enlargement of pieces which are cross section until specific length to reduce the flow rate and give the chance to the sediment to settling. The aim of this research is the planning of a sand trap on the dam construction Sei Padang D.I Bajayu and the aim is available a sand trap that can settles the sediments do not enter to the irrigation channel. The result of the research that has explained in the previous chapter by using guidance from Standar Perencanaan Irigasi Kriteria Prencanaan Bagian Jaringan Irigasi KP-01 dan Bagian Bangunan Utama KP- 02 Departemen Pekerjaan Umum Direktorat Jenderal Sumber Daya Air can be concluled into some conclusions if dimension of a sand trap that has used, its has the width is 14,45 m, the height is 1,156 m, the length is 151,2685. To control the performance of a sand trap that is needed to control the efficiency of the precipitation. The efficiency of the precipitation should be checked in two different condition, the condition which the mud is empty and the condition which the mud is full. From the efficiency graphic can be obtained the efficiency is 0,83 %. So that, 83% sediment that enters into the intake can be deposited to the a sand trap.