BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil
Vol 11 No 1 (2023): BENTANG Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil (Januari 2023)

Analisis Penanganan Longsoran Pada Bangunan Pelimpah Bendungan Ciawi

Nur Alvi Anisa (Direktorat Jenderal Sumber Daya Air
Kementerian Pekerjan Umum dan Perumahan Rakyat
Jl. Pattimura, Kebayoran Baru, Jakarta Selatan, DKI Jakarta, Indonesia 12110)

Ignatius Sriyana (Departemen Teknik Sipil Fakultas Teknik
Universitas Diponegoro
Jl. Prof. Soedarto, SH, Kampus UNDIP Tembalang, Semarang, Indonesia 50275)

Suseno Darsono (Departemen Teknik Sipil Fakultas Teknik
Universitas Diponegoro
Jl. Prof. Soedarto, SH, Kampus UNDIP Tembalang, Semarang, Indonesia 50275)



Article Info

Publish Date
10 Jan 2023

Abstract

The shallow landslide on the left slope of the Ciawi Dam spillway occurred in June 2020. The landslide occurred gradually and disrupted the progress of the dam construction. Therefore, this study aims to analyze the stability of the slope and determine the safe number of the slope then providing recommendations for proper handling. The method used in this study is the limit equilibrium method with the SLOPE/W geostudio program which is run in two methods of determining safety factor, Bishop and Fellenius/Ordinary. Based on the results of the stability analysis, the safety factor is 0.915 for Bishop method and 0.852 for Ordinary method. The first attempt at handling the slopes was to reduce the slope, but this effort did not provide a significant increase in the number of safety factor. The next handling is to use the reinforcement of 3 borepiles with a depth of 35 m, 40 m, and 45 m with a distance between the piles of 40 mm with a shear strength of 150 kN. This effort provides a safety factor number of 1.754 Bishop's method and 1.546 Ordinary’s method with the result that it meets the safety requirements of slope reinforcement.

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Journal Info

Abbrev

bentang

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Transportation

Description

BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil is theoritical and applied Civil Engineering journal for scientific publication issued twice in every volume (January and July). First published in January 2013, already indexed by Dimensions, Google Scholar, Base, Garuda, and Sinta. ...