Erna Nopitasari, - (2020) ANALISIS SEDIMEN DASAR (BED LOAD) PADA SUNGAI CISANGKUY. S1 thesis, Universitas pendidikan indonesia.
Abstract
Sungai Cisangkuy adalah Anak Sungai Citarum yang membentang dari Pangalengan
sampai Dayeuhkolot dengan kondisi sedimen yang cukup banyak hasil erosi dari hulu dan
berakhir mengendap saat banjir. Penelitian ini bertujuan untuk mengetahui masa dan
distribusi massa sedimen dasar (bed load) di Sungai Cisangkuy dari hulu sampai ke hilir.
Penelitian ini menganalisis gradasi sedimen dasar, angkutan sedimen dengan metode
empiris dan simulasi menggunakan program HECRAS 5.0.7. Berdasarkan hasil uji,
sedimen dasar dari hulu sampai hilir didominasi oleh pasir dengan berat jenis 2,59-2,66.
Angkutan massa sedimen dasar menggunakan metode empirik menghasilkan angkutan sedimen terbesar yaitu 2.424.615,2 ton/hari, dan simulasi HEC-RAS menghasilkan angkutan massa sedimen terbesar berada pada debit dengan kala ulang 100 tahun sebesar 52.367,625 ton/hari dan sedimen paling banyak tergerus di hilir. Massa sedimen dasar dipengaruhi oleh beberapa faktor seperti debit, kecepatan, angka froude, tegangan geser dan kemiringan dasar sungai dengan faktor debit yang paling besar pengaruhnya terhadap massa sedimen dasar di Sungai Cisangkuy.
Cisangkuy River is a tributary of the Citarum River which stretches from Pangalengan to Dayeuhkolot with a considerable amount of sediment resulting from erosion from upstream and ends settling during floods. This study aims to determine the mass and distribution of bed load mass in the Cisangkuy River from upstream to downstream. This study analyzes the basic sediment gradation, sediment transport with empirical methods and simulations using the HECRAS 5.0.7 program. Based on the test results, the basic sediment from upstream to downstream is dominated by sand with a specific gravity of 2.59-2.66. Bed load transport using empirical method produces the largest sediment transport, 2,424,615.2 tons / day, and HEC-RAS simulation produces the largest bed load transport at discharge with a 100-year return period of 52.367,625 tons/day and most sediment eroded downstream. Bed load mass is influenced by several factors such as discharge, velocity, froude number, shear stress and slope of the river bed with the most significant factor affecting the bed load mass in the Cisangkuy River.
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| Item Type: | Thesis (S1) |
|---|---|
| Additional Information: | No Panggil : S TS ERN a-2020; NIM : 1603413 |
| Uncontrolled Keywords: | Sedimen, Sungai Cisangkuy, Massa sedimen dasar, Distribusi sedimen. Sediment, Cisangkuy River, Mass of bed load, Sediment Distribution. |
| Subjects: | L Education > L Education (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Sipil > Program Studi Teknik Sipil |
| Depositing User: | Erna Nopitasari |
| Date Deposited: | 16 Sep 2020 04:02 |
| Last Modified: | 16 Sep 2020 04:02 |
| URI: | http://repository.upi.edu/id/eprint/53446 |
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