Numerical modeling of soil bearing capacity coefficients under earthquake load
Subject Areas :Pezhman Fazeli 1 , سهیل GHoreh 2
1 - استادیار دانشگاه آزاد اسلامی واحد شهرکرد
2 - استادیار دانشگاه پیام نور واحد مشهد
Keywords: Numerical modeling, Foundation bearing capacity, Earthquake load, Finite elements, , Pseudo static load,
Abstract :
Evaluation of soil bearing capacity coefficients of has been the focus of a significant amount of studiesby various researchers. In all conducted studies and analyses, by considering different forms ofearthquake load with pseudo-static performance, different results have been obtained. In this research,evaluation of soil bearing capacity coefficients under earthquake load has been carried out using finiteelements software Plaxis and the obtained results have been compared with those from other publishedstudies. Moreover, the effect of the inertia of the underpinning soil on the soil bearing capacitycoefficients was modeled in the pseudo- static mode and the results indicated that bearing capacitycoefficients obtained from pseudo-static gave good agreement with other methods. However,comparison of these two results revealed that the results obtained from numerical modeling are moreconservative and are on the safety side. Finally, since the pseudo –static load is not characterized as anappropriate alternative for the earthquake load; the effect of underpinning soil on the manner oftransferring the earthquake waves until reaching the foundation bed has been also investigated.Evaluation of soil bearing capacity coefficients of has been the focus of a significant amount of studiesby various researchers. In all conducted studies and analyses, by considering different forms ofearthquake load with pseudo-static performance, different results have been obtained. In this research,evaluation of soil bearing capacity coefficients under earthquake load has been carried out using finiteelements software Plaxis and the obtained results have been compared with those from other publishedstudies.