Geologi Dan Studi Faktor Keamanan Lereng Embung Klonggean  Desa Siwalan Kecamatan Sawahan Kabupaten Nganjuk Provinsi Jawa Timur

Ignasius Mahendradewa Adam

doi:10.31315/jmtg.v14i1.9767

Geologi Dan Studi Faktor Keamanan Lereng Embung Klonggean Desa Siwalan Kecamatan Sawahan Kabupaten Nganjuk Provinsi Jawa Timur

Ignasius Mahendradewa Adam

Sari

This study aims to determine the geological conditions of the research area and to analyze and determine the stability of the slopes of the Klonggean dam based on the calculation of the safety factor of the slope by analyzing the stability of the slope in terms of the intensity of the slide (Bowles1984). The method used is the analysis of the slope factor of safety using Simplified Bishop Method use RoscienceSlide 6.0 software and graphical methods Hook and Bray (1981) which performed calculations manually. The results of the analysis get a factor of safety (FK) that is not much different and both are in the safe/stable category (slides rarely occur)) (Bowles 1984): 1. The results of the analysis of slope stability with Bishop Simplified Method use RocsienceSlide 6.0 Software obtained FK value of 2.944 (FK> 1.25). 2. The results of the analysis using the graphical method Hook and Bray obtained a safety factor value of 2.794 (FK> 1.25).

Kata Kunci

Safety Factors Slope, Bishop Simplified Method, Hoek and Bray Method, Rocscience Slide 6.0 Software

Referensi

Bemmelen, R.W. Van, 1949, The Geology of Indonesia, Vol. 1.A, General Geology of Indonesia, Martinos Nijihoff, The Haque, Holand.

Bishop, A.W and Morgenstern, N. 1960. Stability coefficient for earth slopes. Geotechnique, Vol. 10. The Institution of Civil Engineers

Bowles, J. E. 1984. Sifat-sifat Fisis dan Geoteknis Tanah (Mekanika Tanah). Jakarta. Erlangga.

Crozier, M.J and Glade T., 2004, Landslide Hazard and Risk : Issues, Concepts and Approach in Landslides Hazard and Risk Edited by Thomas Glade, M Anderson and Michael J. Crozier

Hoek, E. and Bray, J.W., 1981, Rock Slope Engineering Civil and Mining (4th Edition), The Institution of Mining and Metallurgy, London and New York. Spon Press. Taylor & Francis Group, 356h.

Karnawati, Dwikorita. (2005) Bencana Alam Gerakan Massa Tanah di Indonesia dan Upaya Penanggulangannya. Yogyakarta: Jurusan Teknik Geologi Universitas Gadjah Mada

Zakaria, Z. 2009. Analisis Kestabilan Lereng Tanah. Bandung. Laboratorium Geologi Teknik Universitas Padjadjaran

DOI: https://doi.org/10.31315/jmtg.v14i1.9767

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