چكيده به لاتين
The instability of slope caused by rain is one of the important issues and risks in geotechnical engineering. In this thesis, numerical modeling on the behavior of rebar walls using Geostudio software and the modules available in this software (SLOPE/W, SEEP/W, SIGMA/W) before and after rainfall was investigated. Changing the locations of the slopes due to different rainfall regimes, which sometimes do not cause rupture, but have a great impact on the behavior of the walls, has brought this issue to the attention of researchers. Two articles and their real data have been used to validate the results obtained from these modelings. After modifying the model and verifying the results using existing articles, several studies were conducted on the behavior of rebar walls with different rainfall regimes, in two forms: a parametric study with assumed rainfall regimes and a real rainfall scenario in the north of Iran, which is based on the data of It has been used annually by the Meteorological Organization of the country. In addition to the slope geometry, soil type and rainfall regime, the effect of initial soil suction was also considered by considering two suctions of 60kPa and 240kPa in the research. The results are presented in the majority of changes in pore water pressure, the forces created in the wall and reinforcements and displacements of the wall facade. The results show that with the increase of the fine grain and also the increase of the initial suction, water infiltration is less and then there are less displacements in the face of the wall, increasing the intensity and duration of precipitation until the water absorption capacity of the slope is completed also achieves the same result. Also, rains with low intensity and duration of rainfall cause more displacements than rainfalls with high intensity and duration of rainfall are shorter.
