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DYNA

versão impressa ISSN 0012-7353

Resumo

GARCIA ARISTIZABAL, EDWIN FABIAN; RIVEROS JEREZ, CARLOS ALBERTO  e  BUILES BRAND, MANUEL ALONSO. INFLUENCE OF RAINFALL INTENSITY ON INFILTRATION AND DEFORMATION OF UNSATURATED SOIL SLOPESINFLUENCIA DE LA INTENSIDAD DE LA LLUVIA EN LA INFILTRACION Y DEFORMACION DE TALUDES PARCIALMENTE SATURADOS. Dyna rev.fac.nac.minas [online]. 2011, vol.78, n.170, pp.116-124. ISSN 0012-7353.

In order to improve the understanding of the influence of rainfall intensity on infiltration and deformation behavior of unsaturated soil slopes, numerical 2D analyses are carried out by a three-phase elasto-viscoplastic seepage-deformation coupled method. From the numerical results, it is shown that regardless of the saturated permeability of the soil slope, the increase in the pore water pressure (reduction in suction) during rainfall infiltration is localized close to the slope surface. In addition, the generation of the pore water pressure and the lateral displacement are mainly controlled by the ratio of the rainfall intensity to the saturated permeability of the soil.

Palavras-chave : unsaturated soil; slope stability; rainfall infiltration; numerical analysis.

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