KUSUMANINGRUM, WINDA (2024) PEMODELAN REMBESAN AIR DAN STABILITAS LERENG PADA BENDUNGAN SINDANG HEULA. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.
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Abstract
One of the safety of structures in dams is against water seepage. Water seepage that occurs on the slope body during floods can affect the decrease in slope stability, where the seepage will cause piping symptoms. This study aims to determine the seepage discharge value and the value of slope stability safety values that occur in the dam body, in order to provide benefits in the long term. The method used is to conduct an analysis using GeoStudio software with SEEP/W features on seepage discharge and SLOPE/W on slope stability. The results of the analysis that have been carried out are obtained as a result of water seepage value in steady conditions of flood water level conditions of 3,773×10-6 m3/sec/m2, water seepage at normal water level of 2,867×10-6 m3/sec/m2, water seepage at half-filled water level of 6,518×10-7 m3/sec/m2, water seepage at empty water level of 3,154×10-7 m3/sec/m2. The value in the transient simulation on the flood water level on day 4.3 was 9.6223×10-3 m3/sec/m2, on day 30 was 6×10-3 m3/sec/m2. In the transient simulation on the normal water level on day 1.4, a seepage value of 1.388×10-2 m3/sec/m2 was obtained, on the 30th day a seepage value of 3.3137×10-2 m3/sec/m2 was obtained. In the transient simulation on the half-filled water level on the 1.1st day, a seepage value of 7.9853×10-2 m3/sec/m2 was obtained, on the 30th day a seepage value of 8.0688×10-2 m3/sec/m2 was obtained. In the transient simulation on the empty water level at 2.4 o'clock, a seepage value of 8.7188×10-4 m3/sec/m2 was obtained, on the 30th day a seepage value of 7,523×10-4 m3/sec/m2 was obtained. The value of the security number in the morgenstren method is 2,707. In the Fellenius method of 2.52. And in the Bishop method of 2,679.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Salah satu keamanan struktur pada bendungan adalah terhadap rembesan air. Rembesan air yang yang terjadi pada tubuh lereng pada saat banjir dapat mempengaruhi penurunan kestabilan lereng, dimana rembesan tersebut akan menyebabkan gejala piping. Penelitian ini bertujuan untuk mengetahui nilai debit rembesan dan nilai angka keamanan stabilitas lereng yang terjadi di tubuh bendungan, agar dapat memberikan manfaat dalam jangka panjang. Metode yang digunakan adalah melakukan analisis menggunakan software GeoStudio dengan fitur SEEP/W pada debit rembesan dan SLOPE/W pada stabilitas lerengnya. Hasil Analisis yang telah dilakukan didapatkan hasil Nilai rembesan air pada kondisi steady kondisi muka air banjir sebesar 3.773×10-6 m3/sec/m2, rembesan air pada muka air normal sebesar 2.867×10-6 m3/sec/m2, rembesan air pada muka air setengah terisi sebesar 6.518×10-7 m3/sec/m2, rembesan air pada muka air kosong sebesar 3.154×10-7 m3/sec/m2. Nilai pada simulasi transient pada muka air banjir di hari ke 4.3 sebesar 9.6223×10-3 m3/sec/m2, pada hari ke 30 sebesar 6.218×10-3 m3/sec/m2. Pada simulasi transient pada muka air normal hari ke 1.4 didapatkan nilai rembesan sebesar 1,.388×10-2 m3/sec/m2, pada hari ke 30 didapatkan nilai rembesan sebesar 3.3137×10-2 m3/sec/m2. Pada simulasi transient pada muka air setengah terisi hari ke 1.1 didapatkan nilai rembesan sebesar 7.9853×10-2 m3/sec/m2, pada hari ke 30 didapatkan nilai rembesan sebesar 8.0688×10-2 m3/sec/m2. Pada simulasi transient pada muka air kosong pada jam 2.4 didapatkan nilai rembesan sebesar 8.7188×10-4 m3/sec/m2, pada hari ke 30 didapatkan nilai rembesan sebesar 7.523×10-4 m3/sec/m2.Nilai angka keamanan pada metode morgenstren sebesar 2.707. Pada metode Fellenius sebesar 2.52. Dan pada metode Bishop sebesar 2.679. | |||||||||
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering |
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| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 22201-Jurusan Teknik Sipil |
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| Depositing User: | Ms Winda Kusumaningrum | |||||||||
| Date Deposited: | 23 Aug 2024 11:18 | |||||||||
| Last Modified: | 23 Aug 2024 14:08 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/41260 |
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