چكيده به لاتين
The phenomenon of faulting is one of the results of seismic activities of the earth, which leads to rupture of the earth's surface with differential displacements on both sides of the fault, and if there is a structure near the location of the fault, it will have adverse consequences on them. Several researches have been conducted in the field of propagation of ruptures caused by faults in soil layers and also the effect of ruptures on structures such as foundations, tunnels and earth dams, etc. In this research, the interaction of cemented material dams (CMD) with reverse faulting has been investigated. Dams with cemented materials are a new type of dams that, instead of minimizing the volume of body materials and needing to increase its quality, use a larger volume of materials but with a lower unit cost. Also, in these dams, the use of local materials for the construction of the dam body is economical and while being built quickly with simple equipment, they have the least impact on the surrounding environment.
In this research, the centrifuge test results of a physical model of a cemented material dam have been used to compare with the results of numerical modeling. The numerical method used in this research is finite element method using Abaqus software.
A parametric study conducted in this research to investigate the interaction of the dam with cemented materials and reverse faulting, including the effects of the propagation angle of the fault rupture, the effects of the depth of the soil layer, the slope of the dam, the different positions of the fault, and the presence of water in dam. Also, Kahir Dam has been investigated as a case study.
The results indicate that the rupture propagation angle of the fault can have an effect on the rupture path, rotation and vertical displacement of the dam crest. Also, increasing the height of the granular soil layer on which the dam is located reduces the effects of the faulting.
Also, by investigating the slope of the dam, it can be seen that the optimal design of the dam geometry in a way that is economical, reduces the rotation and vertical movement of the dam crown. Also, the location of the fault has a great effect on the rotation and vertical movement of the dam crown, which should be considered in selecting the dam location.
