Analisa Potensi Longsor Dengan Metode SMCE
DOI:
https://doi.org/10.36982/jtg.v6i2.398Abstract
Pagar Alam City has high rainfall with highland topography that to trigger landslide events, especially in villages area and road at hillside. It affects to road networks activity which affected by road failure and inhibit vehicles traffic. This study will analyzed landslide vulnerability in main road of Pagar Alam City based on topography characteristic, geology, and soil types. Distribution of landslide occurrences will assessed base on landslide occurences density in unit areas. Frequency and distribuition of landslide occurrences will analyzed by landslide trigger factors such as stability, slope, soil type and geology, infrastructures type. Meanwhile rainfall extreme events period will be analyzed with general numbers extreme model. Finally, landslide vulnerability will be analyzed with spatial multi criterias evaluation (SMCE) ILWIS due to availability of input map factors, such as poin of landslide, sloppe, soil type, geology, drainage system, infrastructure, and landcover. The result of this study showed that distribution of landslide hazard potential will be occurred in Shouth Dempo District with 12605 hectares for high and very high landslide hazard potentials.
Keywods: Landslide, SMCE, ILWIS
References
DeGraff, J. V. (1985). Landslide Hazard on St. Lucia, West Indies - Final Report. Organization of American States, washington D.C. (pp. 21).
Anderson, M. G. (1983). Road-cut slope topography and stability relationships in St Lucia, West Indies. Applied Geography, 3(2), 105–114. doi:10.1016/0143-6228(83)90033-4
Guzzetti, F., Carrara, A., Cardinali, M., & Reichenbach, P. (1999). Landslide hazard evaluation: a review of current techniques and their application in a multi-scale study, Central Italy. Geomorphology, 31(1-4), 181–216. doi:10.1016/S0169-555X(99)00078-1
Anderson, M. G., & Holcombe, E. (2013). Community-Based Landslide Risk Reduction-Managing Disasters in Small Steps. The World Bank, Washington, DC.doi:10.1596/978-0-8213-9456-4
Dai, F.C., & Lee, C.F. (2001). Frequency–volume relation and prediction of rainfall-induced landslides. Engineering Geology, 59(3-4), 253–266. doi:10.1016/S0013-7952(00)00077-6
Aleotti, P., & Chowdhury, R. (1999). Landslide hazard assessment: summary review and new perspectives. Bulletin of Engineering Geology and the Environment, 58(1), 21–44. doi:10.1007/s100640050066
Abella, E. A. C., & Van Westen, C. J. (2007). Generation of a landslide risk index map for Cuba using
