stability and safety analysis of dams is a subject which has been studied in recent years by several researchers. researchers have used various methods and models for studying the stability of the dam. several methods are proposed for the analysis of earth dams under earthquakes. some of these methods are viscoelastic methods and semi static methods. each of these methods can be used as an appr...

Upper Gotvand dam is constructed on the Karun River located in the south west of Iran. In this paper, 2D and 3D models of the dam together with the foundation and abutments were constructed and several seepage analyses were carried out. Then the gypsum veins scattered throughout the foundation ground and also the seepage pattern were included in the models, hence the dissolution law of gypsum, ...

Predicting surface settlement in deep foundation pit engineering plays a central role the safety of construction. Recently, static or dynamic methods are usually applied to predict ground projects. In this work, we propose model combining wavelet noise reduction and radial basis neural network (XW-RBF) reduce interference monitoring data. The results show that XW-RBF predicts an average relativ...

The excavation of a foundation pit will break the original stress balance and affect surface settlement natural adjacent buildings, so deformation control is very important. In this paper, numerical simulation results additional caused by were compared with experimental to verify accuracy model obtain reliable ratio building width average particle size sand that was not affected effect. Then, d...

ground differential movements due to faulting have been observed to cause damage to engineered structures and facilities. although surface fault rupture is not a new problem, there are only a few building codes in the world containing some type of provisions for reducing the risks. fault setbacks or avoidance of construction in the proximity to seismically active faults, are usually supposed as...

Observations after earthquakes where surface fault ruptures crossed engineering facilities reveal that some structures survived the rupture almost unscathed. In some cases, the rupture path appears to divert, “avoiding” the structure. Such observations point to an interaction between the propagating rupture, the soil, and the foundation. This paper i develops a two-step nonlinear finite-element...

Using the Reciprocal Theorem and the principle of superposition, this dissertation examines three procedures for obtaining the impedance functions and driving force vectors necessary for a soil-structure interaction analysis. The first procedure employs a volume integral of body forces and the displacement Green’s Functions to obtain the frequency dependent force-displacement relationship (impe...