This paper presents numerical flow and slope stability simulations in three typical sections of earth dams built in tropical regions, two homogeneous with different slope inclinations, and the other one heterogeneous with impermeable core. The geotechnical material parameters used in this work were obtained from a lab testing of physical characterization, compaction, consolidation, variable load permeability and saturated triaxial type CD for compacted soil samples with standard proctor energy at optimum moisture content (23%), optimum moisture content + 2% and optimum moisture content +5%. The objective is to analyze the general behavior of earth dams built in rainy regions where optimum moisture is exceeded. The factor of safety is satisfactory for the three sections compacted in all moisture content during the stages of operation and end of construction. On The other hand, the rapid drawdown condition is the critical phase for homogeneus dams configuration, the factor of safety obtained were unsatisfactory. In general, the heterogeneous dam behavior is more efficient due to the fact that the slopes are made up of gravel, which favors the dissipation of pore pressures during the rapid drawdown. For the critical phase, the slopes should have lower inclinations of the upstream and downstream slopes to guarantee stability, although it increases the costs.<\/p>\r\n","references":"[1]\tI. J. A. Brackley (1975). A model of unsaturated clay structure and its applications well behavior, Proc. 6thAfrican conf. Soil Mechanics and Foundation Engineering, Durban, Vol.1, Rotterdam, Balkema, pp. 65-70.\r\n[2]\tA. R. Balmaceda (1991). Suelos compactados \u2013 Un estudio te\u00f3rico y experimental. Tesis doctoral. Universidad Polit\u00e9cnica de Catalu\u00f1a, Barcelona.\r\n[3]\tF. Massad (2010). Obras de terra. Curso b\u00e1sico de Geotecnia. 2.ed. Oficina de textos de S\u00e3o Paulo. S\u00e3o Paulo. SP. 215p.\r\n[4]\tJ. A. Buritic\u00e1, \"An\u00e1lise do comportamento de barragens constru\u00eddas com n\u00facleos argilosos compactados no ramo super \u00famido\u201d. MSc Dissertation, Faculdade de tecnologia, Departamento de Engenharia Civil e Ambiental, Universidade de Bras\u00edlia, Bras\u00edlia, DF, (2013). 124p.\r\n[5]\tM. S. Araki, \"Aspectos relativos \u00e0s propriedades dos solos porosos colaps\u00edveis do Distrito Federal\u201d. MSc Dissertation, Faculdade de tecnologia, Departamento de Engenharia Civil e Ambiental, Universidade de Bras\u00edlia, Bras\u00edlia, DF, 1997. 121p.\r\n[6]\tN. R. Morgenstern, \"The analysis of the stability of general slip surfaces\" Geotechnique, 1973 15(1): 70-93.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 150, 2019"}