TY - GEN
T1 - Probabilistic analyses of slope stability under infiltration conditions
AU - Otálvaro, I. F.
AU - Cordão-Neto, M. P.
N1 - Publisher Copyright:
© 2013 Taylor & Francis Group, London.
PY - 2013
Y1 - 2013
N2 - One of the most important causes of landslides in tropical zone is infiltration due to rainfall. In this case, slope stability analyses are usually done by deterministic methods. Nowadays, papers and reports which combine Limited Equilibrium Method (LEM) and Finite Element Method (FEM) are more common. In this paper, FEM is used to analyze seepage problem and LEM is used to determine safety factor. In addition, associating probabilistic analyses to LEM and FEM can improve the results and lead to a better understanding of landslides induced by rainfall. Thus, the First Order Second Moment (FOSM) method is used to quantify the influence of mechanical and hydraulic parameters in safety factor. Furthermore, the porewater pressure field is determined by SEEP/W (Geo-slope International, 2004a) and used as input in LEM analyses. Results show that the influence of each parameter in safety factor changes with time during the infiltration process.
AB - One of the most important causes of landslides in tropical zone is infiltration due to rainfall. In this case, slope stability analyses are usually done by deterministic methods. Nowadays, papers and reports which combine Limited Equilibrium Method (LEM) and Finite Element Method (FEM) are more common. In this paper, FEM is used to analyze seepage problem and LEM is used to determine safety factor. In addition, associating probabilistic analyses to LEM and FEM can improve the results and lead to a better understanding of landslides induced by rainfall. Thus, the First Order Second Moment (FOSM) method is used to quantify the influence of mechanical and hydraulic parameters in safety factor. Furthermore, the porewater pressure field is determined by SEEP/W (Geo-slope International, 2004a) and used as input in LEM analyses. Results show that the influence of each parameter in safety factor changes with time during the infiltration process.
UR - http://www.scopus.com/inward/record.url?scp=84875384682&partnerID=8YFLogxK
U2 - 10.1201/b14393-84
DO - 10.1201/b14393-84
M3 - Conference contribution
AN - SCOPUS:85128076857
SN - 9780415620956
T3 - Advances in Unsaturated Soils - Proceedings of the 1st Pan-American Conference on Unsaturated Soils, PanAmUNSAT 2013
SP - 539
EP - 543
BT - Advances in Unsaturated Soils
PB - Taylor and Francis - Balkema
T2 - 1st Pan-American Conference on Unsaturated Soils, PanAmUNSAT 2013
Y2 - 20 February 2013 through 22 February 2013
ER -