ANALISIS STABILITAS LERENG DAN REMBESAN BENDUNGAN RANDUGUNTING PADA SAAT KONSTRUKSI

Simangunsong,, Eirene Yosua Bultman and Lestari, Endah (2021) ANALISIS STABILITAS LERENG DAN REMBESAN BENDUNGAN RANDUGUNTING PADA SAAT KONSTRUKSI. Diploma thesis, ITPLN.

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Abstract

Pembangunan infrastruktur yang sedang masif di Indonesia terutama pada bangunan air menjadi salah satu sorotan untuk saat ini. Bendungan Randugunting terletak di Desa Kalinanas, Kec. Japah, Kab. Blora, Jawa Tengah di bawah naungan BBWS Pemali Juana direncanakan dibangun dari 08 November 2018 – 07 November 2022. Studi Analisis Stabilitas Lereng dan Rembesan pada Bendungan Randugunting pada saat Konstruksi di mana dilakukan analisis Rembesan dan Stabilitas Lereng pada berbagai kondisi timbunan yaitu ditimbunan LWL, NWL, dan FWL dan Muka air waduk dimisalkan pada el. +80.00 m (el. Cofferdam). Studi ini meliputi penjabaran material dari penyusun setiap zona timbunan bendungan utama Randugunting. Analisis Rembesan dilakukan setelah grouting yang melewati tubuh dan pondasi Bendungan Randugunting dengan Program Geostudio SEEP/W 2012. Analisis Stabilitas Lereng pada kondisi gempa dan tidak ada gempa dengan Program Geostudio SLOPE/W 2012. Material penyusun tubuh bendungan yaitu Zona 1 material Contact clay – Clay, Zona 2 Filter halus, Zona 3 Tanah random, Zona 4 Rip – rap, Zona 5 Transisi dan Filter kasar Horizontral drain, dan Zona 6 material Rock toe. Kapasitas rembesan yang terjadi rembesan (1,670 x10-6 m³/dt ) < 1% dari rata – rata debit yang masuk ke dalam waduk. Kecepatan rembesan (Vs = 0,00453 cm/dt) masih dibawah kecepatan kritis (Vc= 6,1 x 102 cm/dt). Faktor kemanan terhadap piping adalah 38,90 > 4 aman terhadap piping. Kestabilan lereng ada dan tanpa gempa dalam kondisi timbunan pada elevasi LWL, NWL, FWL dengan muka air waduk dan tanpa muka air waduk (kosong) dikategorikan aman terhadap kelongsoran.

Massive infrastructure development in Indonesia, especially in water structures, is one of the highlights for now. Randugunting Dam is located in Kalinanas Village, Japah District, Blora County, Central Java. Which is under the auspices of BBWS Pemali Juana is planned to be built from November 8, 2018 – November 7, 2022. Analysis of Slope and Seepage Stability Analysis at the Randugunting Dam during Construction where seepage and Slope Stability analysis are carried out on embankment conditions, namely LWL, NWL embankments , and FWL and the Forward air reservoir are assumed to be in el. +80.00 m (el. Cofferdam). This study includes a description of the material from the construction of each embankment zone of the main Randugunting dam. Seepage analysis was carried out after grouting that passed through the body and foundation of the Randugunting Dam with the 2012 SEEP/W Geostudio Program. Analysis of Slope Stability in earthquake and earthquake conditions was present or not with the 2012 SLOPE/W Geostudio Program. , Zone 2 Fine filter, Zone 3 Random soil, Zone 4 Rip – rap, Zone 5 Transition and Coarse filter Horizontral drain, and Zone 6 Rock toe material. Seepage capacity that occurs seepage (1,670 x10-6 �³/�� ) < 1% of the average discharge into the reservoir. The seepage velocity (Vs = 0.0045 cm/s) is still below the critical velocity (Vc= 6,1 x 102 cm/dt). The safety factor for piping is 38.90 > 4 safe for piping. Slope stability with and without earthquake in embankment conditions at LWL, NWL, FWL elevations with water reservoirs and without water reservoirs (empty) is

Item Type: Thesis (Diploma)
Uncontrolled Keywords: Stabilitas lereng, Rembesan Bendungan, Material Bendungan. Slope Stability, Dam Seepage, Dam Material.
Subjects: Bidang Keilmuan > Teknik Sipil
Skripsi
Divisions: Fakultas Teknologi Infrastruktur dan Kewilayahan > S1 Teknik SIpil
Depositing User: Sudarman
Date Deposited: 02 Sep 2025 15:55
Last Modified: 02 Sep 2025 15:55
URI: https://repository.itpln.ac.id/id/eprint/475

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