|M.Sc Thesis||Department of Civil and Environmental Engineering|
|Supervisor:||Prof. Emeritus Baker Rafael|
This thesis deals with the internal stability design of reinforced retaining walls. Reinforced walls consist of the following three major components: reinforcement, soil, and wall facing; each of which has different properties. The reinforcement may be made of geogrids, geotextiles, steel grids etc. The soil is usually granular. The common practice is to consider the facing as an architectural element, without structural function. In recent years it has become recognized that the facing contribute significantly to stability of the system. However, the common design procedures do not take this effect into consideration. These results in massive reinforcement (strength and length), which would not have resulted in an analysis, that considers the structural properties of the wall. The consequence of massive reinforcement is not restricted to the cost of the reinforcement itself, but impose extensive and expensive earthwork. In recent years, the cost of construction granular materials in Israel has risen significantly; and a reduction of required reinforcement length is a significant contribution.
The research suggests an analysis procedure, which takes into consideration the structural function of the facing, and by that allows for economical design of reinforced soil retaining structure. Development of this type of supporting systems increased significantly the range of options available to the design engineer.