| dc.creator | Arango M. | |
| dc.creator | Parra M. | |
| dc.creator | Hidalgo C. | |
| dc.date | 2019 | |
| dc.date.accessioned | 2021-02-05T14:59:29Z | |
| dc.date.available | 2021-02-05T14:59:29Z | |
| dc.identifier.issn | 17551307 | |
| dc.identifier.uri | http://hdl.handle.net/11407/6091 | |
| dc.description | The negative effect of rains on the stability of the slopes is a problem that, added to anthropic factors and population settlements, currently generate not only material but also human losses. Therefore, the evaluation of threat by mass movements has become a first order problem. However, one of the aspects that presents the greatest uncertainty in these evaluations is the effect of soil saturation. This paper presents a methodology for evaluating the effect of rainfall by estimating the probability of soil saturation using the Richards equation and the first order and second moment method-FOSM. The methodology was applied considering two residual soils from the area of north-western Colombia named Aburra valley. For this purpose, a characterization of each material was made, evaluating the variability of shear strength parameters and hydraulic parameters. Subsequently, infiltration models were made using the Richards equation with a historical rain event that occurred between October 27 and November 13, 2010, which exceeded the failure thresholds established for the Aburra Valley and generated several landslides. The advance of the wetting front was evaluated, and the probability of saturation was determined. It was found that, in all the evaluated soils, full saturation reaches depths between 600 and 6000 mm and the probability of saturation is greater in soils from Stock de Altavista that report a lesser values of air entry suction. The mean values of φ b varies between 1.3° and 6.5° for soils from Stock de Altavista. © Published under licence by IOP Publishing Ltd. | |
| dc.language.iso | eng | |
| dc.publisher | Institute of Physics Publishing | |
| dc.relation.isversionof | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063510639&doi=10.1088%2f1755-1315%2f221%2f1%2f012016&partnerID=40&md5=9e3d082ad0c8ddeda55ad3b51b426f8d | |
| dc.source | IOP Conference Series: Earth and Environmental Science | |
| dc.title | Mechanical and Hydraulic Behaviour of Unsaturated Residual Soils | |
| dc.type | Conference Paper | eng |
| dc.rights.accessrights | info:eu-repo/semantics/restrictedAccess | |
| dc.publisher.program | Ingeniería Civil | spa |
| dc.identifier.doi | 10.1088/1755-1315/221/1/012016 | |
| dc.relation.citationvolume | 221 | |
| dc.relation.citationissue | 1 | |
| dc.publisher.faculty | Facultad de Ingenierías | spa |
| dc.affiliation | Arango, M., School of Engineering, University of Medellin, Colombia, Colombia | |
| dc.affiliation | Parra, M., School of Engineering, University of Medellin, Colombia, Colombia | |
| dc.affiliation | Hidalgo, C., School of Engineering, University of Medellin, Colombia, Colombia | |
| dc.relation.references | Hidalgo, C., Vega, J., Estimation of the threat of landslides triggered by earthquakes and rainfall (Valle de Aburrá-Colombia) (2014) Revista EIA, 11, pp. 103-117 | |
| dc.relation.references | Chen, H., Zhang, L., A physically-based distributed cell model for predicting regional rainfallinduced shallow slope failures (2014) Engineering Geology, pp. 79-92 | |
| dc.relation.references | Ali, A., Huang, J., Lyamin, A., Sloan, S., Griffiths, D., Cassidy, M., Li, J., Simplified quantitative risk assessment of rainfall-induced landslides modelled by infinite slopes (2014) Engineering Geology, pp. 102-116 | |
| dc.relation.references | Papathoma-Kohle, M., Zischg, A., Fuchs, S., Glade, T., Keiler, M., Loss estimation for landslides in mountain areas-An integrated toolbox for vulnerability assessment and damage documentation (2015) Environmental Modelling & Software, pp. 156-169 | |
| dc.relation.references | Vega, J.A., Hidalgo, C.A., Quantitative risk assessment of landslides triggered by earthquakes and rainfall based on direct costs of urban buildings (2016) Geomorphology, 273, pp. 217-235 | |
| dc.relation.references | Lari, S., Frattini, P., Crosta, G., A probabilistic approach for landslide hazard analysis (2014) Engineering Geology, pp. 3-14 | |
| dc.relation.references | Zêrere, J., García, R., Oliveira, S., Reis, E., Probabilistic landslide risk analysis considering direct costs in the area north of Lisbon (Portugal) (2008) Geomorphology, pp. 467-495 | |
| dc.relation.references | Aristizábal Giraldo, E.V., SHIA-Landslide" Developing a physically based model to predict shallow landslides triggered by rainfall in tropical environments, Medellin (2013) Doctoral Thesis Submitted to the Department of Geosciences and Environment of the Universidad Nacional de Colombia | |
| dc.relation.references | Gui, M.-W., Wu, Y.-M., Failure of soil under water infiltration condition (2014) Engineering Geology, pp. 124-141 | |
| dc.relation.references | Gerscovich, D., Vargas, E., De Campos, T., On the evaluation of unsaturated flow in a natural slope in Rio de Janeiro, Brazil (2006) Engineering Geology, pp. 23-40 | |
| dc.relation.references | Rahardjo, H., Li, X.W., Toll, D.G., Leong, E.C., The effect of antecedent rainfall on slope stability (2001) Geotechnical and Geological Engineering, 19, pp. 371-399 | |
| dc.relation.references | Cascini, L., Cuomo, S., Pastor, M., Sorbino, G., Modelling of rainfall-induced shallow landslides of the flow-type (2010) Journal of Geotechnical and Geoenvironmental Engineering, 136 (1), pp. 85-98 | |
| dc.relation.references | Conte, E., Troncone, A., A method for the analysis of soil slips triggered by rainfall (2012) Geotechnique, 62 (3), pp. 187-192 | |
| dc.relation.references | Harp, E.L., Reid, M.E., McKenna, J.P., Michael, J.A., Mapping of hazard from rainfalltriggered landslides in developing countries: Examples from Honduras and Micronesia (2009) Engineering Geology, pp. 295-311 | |
| dc.relation.references | Sanavia, L., Numerical modelling of a slope stability test by means of porous media mechanics (2008) Engineering Computations, p. 25 | |
| dc.relation.references | Oh, S., Lu, N., Slope stability analysis under unsaturated conditions: Case studies of rainfallinduced failure of cut slopes (2015) Engineering Geology, pp. 96-103 | |
| dc.relation.references | Kim, J., Jeong, S., Regueiro, R.A., Instability of partially saturated soil slopes due to alteration of rainfall pattern (2012) Engineering Geology, pp. 28-36 | |
| dc.relation.references | Chiu, C.F., Yan, W.M., Yuen, K.V., Reliability analysis of soil-water characteristics curve and its application to slope stability analysis (2012) Engineering Geology, 135-136, pp. 83-91 | |
| dc.relation.references | Delwyn, G.F., Xing, A., Equation for the soil-water characteristic curve (1997) Canadian Geotechnical Journal, 31, pp. 521-532 | |
| dc.relation.references | Aiassa, G., (2008) Córdoba, , (Argentina) Characterization of infiltration processes in unsaturated state on compacted silty soils in Spanish | |
| dc.relation.references | Fredlund, D.G., Morgenstern, N.R., Widger, R.A., The shear strength of unsaturated soils (1978) Canadian Geotechnical Journal, 15 (3), pp. 313-321 | |
| dc.relation.references | Van Genuchten, M.T., A closed-form equation for pre-dicting the hydraulic conductivity of unsaturated soils (1980) Soil Science Society of America Journal, 44 (5), pp. 892-898 | |
| dc.relation.references | User's Manual "cHEMFLO-2000, Interactive Software for Simulating Water and Chemical Movement in Unsaturated Soils (2003) EPA, , US EPA | |
| dc.relation.references | Chow, V.T., Maidment, D.R., Mays, L.W., (1994) Santa Fé de Bogotá, , (Colombia: Mc GRAW-HILL, INTERAMERICANA, S.A.) Applied Hydrology | |
| dc.relation.references | Deere, D.V., Patton, A.D., (1971) De IV Pan-American Congress on Soil Mechanics and Foundations, , (Puerto Rico) Stability of slopes in residual soils In Spanish | |
| dc.relation.references | Fredlund, D.G., Unsaturated soil mechanics in engineering practice (2006) Journal of Geotechnical and Geoenvironmental Engineering, 132 (3), pp. 286-321 | |
| dc.relation.references | Parra, M., Model for the study of the threat of mass movements detonated by rains in the Llanaditas neighborhood of the city of Medellín Universidad Nacional de Colombia, Medellin, 2015. , in Spanish | |
| dc.relation.references | Aristizábal, E., Gamboa, M., Leoz, F., Early warning system for rainfall-induced landslides in the Aburrá Valley, Colombia Revista EIA, pp. 155-169. , Julio 2010 | |
| dc.relation.references | http://www.desinventar.org/es/, C. OSSO, "Desinventar" Disaster effects inventory system, [Online] (in Spanish) | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dc.type.driver | info:eu-repo/semantics/other | |
