GeoTechSimulation

 Verification and validation are the essential procedures required to assess accuracy and credibility of numerical analyses. The terms “verification” and “validation”  are often used interchangeably in the current engineering practice. However, the two procedures have entirely different meanings and applications. The differences are outlined below: Verification is meant to identify and remove programming errors in a… Read More

 Per the current state of practice, a pile design is typically completed by checking the following design items: Static settlement which includes elastic compression of pile, immediate and consolidation settlements of soil; Structural and geotechnical bearing capacity of pile in static and seismic conditions; Seismic settlement under downdrag forces induced by the surrounding soil during… Read More

 Due to the complexity of finite element programs, performing a finite element analysis may seem unattractive for some geotechnical engineers. Interestingly, they may prefer to alternatively use simple traditional semi-empirical methods which are generally formulated based on some assumptions that may not be even applicable for the problem in hand. Nonetheless, the engineers rather use… Read More

 This article intends to shed light on application of Rayleigh and numerical damping in finite element and finite difference analyses. As you all know, there are two types of damping in a system subjected to dynamic loads; (1) material damping, and (2) radiation damping. Material damping is the dissipated energy due to the yielding of… Read More

 This article outlines the common design procedures used to evaluate the performance of geotechnical systems that are proposed for mitigation of  lateral spreading. The design of any type of retaining structure generally includes; (i) global stability analysis, and (ii) internal stability analysis. In the former, general mass movement of a retaining structure as well the… Read More