A rainfall threshold for the occurrence of landslides in manmade slopes in residual soils in the northwest of Colombia

C. H. Hidalgo, A. P. De Assis

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The purpose of this paper was to determine a rainfall threshold to estimate the probability of occurrence of landslides in roadway slopes. The analysis was performed for a roadway slopes excavated in residual soils derived from igneous intrusive rocks from the stock of Altavista, Medellin, Colombia. The threshold were raised in terms of total rainfall accumulated for short term of 1, 3 and 5 days and precedent moisture in soil due to long term rainfall of 15, 30 and 60 days. Rainfall data and landslides recorded for a period of four years were used to determine the thresholds. The thresholds found show that for slopes excavated in these soils the amount of rainfall that triggers the landslide is about 50% of the rainfall that causes landslides in natural slopes in the same area. © 2013 Taylor & Francis Group, London.
Original languageAmerican English
Pages579-584
Number of pages6
StatePublished - 1 Apr 2013
EventAdvances in Unsaturated Soils - Proceedings of the 1st Pan-American Conference on Unsaturated Soils, PanAmUNSAT 2013 -
Duration: 1 Apr 2013 → …

Conference

ConferenceAdvances in Unsaturated Soils - Proceedings of the 1st Pan-American Conference on Unsaturated Soils, PanAmUNSAT 2013
Period1/04/13 → …

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    Hidalgo, C. H., & De Assis, A. P. (2013). A rainfall threshold for the occurrence of landslides in manmade slopes in residual soils in the northwest of Colombia. 579-584. Paper presented at Advances in Unsaturated Soils - Proceedings of the 1st Pan-American Conference on Unsaturated Soils, PanAmUNSAT 2013, . https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875397670&origin=inward