Finite element analysis of supported excavations in clay

Abstract

In this study, various soil mechanics problems are investigated using the computer program developed by Clough and Duncan, (1969). By this program, both incremental analyses and gravity turn-on analyses can be provided. Moreover, different construction procedures can also be realized, such as fill construction, excavation, material alteration,water level changes, structural elements construction. In the second chapter, general idea of incremental soil-structure interaction problems is given. Meanwhile, stress-strain behaviour of soil which is assumed to be nonlinear, stress dependent throughout the computer program is explained in detail. Additionally, the techniques for obtaining the parameters which are necessary to perform the computer program are discussed. The behaviour of interface elements are studied in this chapter. In the third chapter, differentsoilmechanics problems are analyzed by using the options of computer program. Tn the fourth chapter, a supported excavation problem which is a project of excavation system of Istanbul Metro is analyzed in order to predict system behaviour. The manual of computer program is presented, in appendix.