Pengaruh Perubahan Faktor Erosivitas Hujan Pada Metode Usle, Musle Dan Rusle Terhadap Hasil Produksi Sedimentasi Waduk Gembong

Rozaan, Hafizh Muhammad (2023) Pengaruh Perubahan Faktor Erosivitas Hujan Pada Metode Usle, Musle Dan Rusle Terhadap Hasil Produksi Sedimentasi Waduk Gembong. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Waduk Gembong merupakan salah satu waduk buatan di Kabupaten Pati yang mulai beroperasi pada tahun 1933 dan dibangun oleh Pemerintah Belanda. Fungsi utamanya adalah sebagai pengendali banjir dan penyedia air irigasi seluas 3.855 Ha. Pengoperasian waduk tidak bisa dihindari dari permasalahan sedimentasi. Hal ini terjadi dikarenakan secara alami bahan angkutan sedimen dari sungai akan tertampung dan terendap di dalam waduk. Sudah banyak penelitian yang membahas mengenai berapa banyak prediksi sedimentasi yang akan terjadi di dalam sebuah Waduk. Akan tetapi, masih sedikit penelitian mengenai metode mana yang paling efektif dan paling baik untuk memprediksi kapasitas sedimen tersebut. Pada penelitian ini akan membahas mengenai jumlah erosi, laju erosi, laju sedimentasi hingga volume sedimentasi di Waduk Gembong Kabupaten Pati Jawa Tengah. Perhitungan volume tersebut dilakukan menggunakan metode USLE, MUSLE serta RUSLE. Dengan membandingkan volume sedimentasi dari ketiga metode tersebut dengan volume sedimentasi yang didapatkan dari data batimetri terbaru, maka bisa didapat kesimpulan metode yang paling mendekati hasil paling aktual dari volume sedimentasi itu sendiri. Didapatkan hasil volume sedimentasi metode USLE sebesar 15.195,07 m3/th, metode MUSLE sebesar 12.907,72 m3/th, metode RUSLE sebesar 41.260,42 m3/th dan Batimetri sebesar 28.103,76 m3/th. Maka dari itu didapat kesimpulan metode USLE yang paling mendekati hasil prediksi pada Metode Batimetri
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Gembong Reservoir is one of the artificial reservoirs in Pati Regency which began operating in 1933 and was built by the Dutch Government. Its main function is to control floods and provide irrigation water for an area of 3,855 hectares. The operation of the reservoir cannot be avoided from sedimentation problems. This happens because naturally the sediment transport material from the river will be accommodated and deposited in the reservoir. There have been many studies that discuss how much sedimentation prediction will occur in a reservoir. However, there is still little research on which method is the most effective and best for maintaining the sediment capacity. This research will discuss the amount of erosion, erosion rate, sedimentation rate to sedimentation volume in the Gembong Reservoir, Pati Regency, Central Java. The volume calculation was carried out using the USLE, MUSLE and RUSLE methods. By comparing the sedimentation volume of the three methods with the sedimentation volume obtained from the latest bathymetry data, it can be concluded that the method that is closest to the actual results of the sedimentation volume itself. The results of the sedimentation volume of the USLE method were 15,195.07 m3/year, the MUSLE method was 12,907.72 m3/year, the RUSLE method was 41,260.42 m3/year and bathymetry was 28,103.76 m3/year. Therefore, the USLE conclusion method is obtained which is closest to the prediction results of the bathymetry method

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Waduk, USLE, MUSLE, RUSLE, Erosi, Sedimentasi
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering > TC167 Dams, reservoirs
Divisions:	Faculty of Vocational > Civil Infrastructure Engineering (D4)
Depositing User:	Hafizh Muhammad Rozaan
Date Deposited:	05 Oct 2023 06:46
Last Modified:	05 Oct 2023 06:46
URI:	http://repository.its.ac.id/id/eprint/103691

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