Le clouage dans les ouvrages de souténement

Abstract

This thesis deals with the behavior, design, and sizing the nailed wall, the first part of the thesis concerns the bibliographic knowledge of soil nailing. Then another chapter presents an analysis and design of nailed walls. In the second part, the use of the finite element method in the geotechnical field is very current, for great projects. One can carry out finite element analyses in order to check the stability of a work in interaction with his environment, This work is part of studies dedicated to understanding the behavior of this type of work, study is undertaken to develop a numerical model to our project,which relates to the interaction soil with various works placed in an urban site. to describe the behavior of reinforced nailing with a particular focus on the effect of phassage construction on the behavior of the nailed wall structures, the effect of the spacing of nails and Effects of nail length (length depending Wall height of L / H). The works concerned are: nails, shotcrete (siding) and an excavation. Parametric study shows the effect of the parameters of calculations and the parameters geotechnical on the results. To achieve the pursued goal, work will be divided into three chapters. First, a short outline of the finite element method, One chose the code finite elements PLAXIS 8.2, which allows us the passage of a complex real project to the numerical model, and to make the parametric study easily and quickly. Second lies, one determines a geotechnical model for our project. definition of the geometry of the model and the characteristics of materials; one passes to calculation by PLAXIS. Initially , to draw the model, to make the grid and to put the initial conditions, then, to make calculations. Finally, the parametric study, which shows the effect of various parameters on the