الفهرس 
Stability analysis of deep excavations in cla
ContentsOnly 14 pages are availabe for public view
 |  | from | 160 |  |  |
| | | from | 160 | | |
Abstract
In this research, the stability of deep excavations in clays is discussed. This thesis also introduces how the input parameters used to represent the soil properties affect the excavation stability in undrained conditions. The soil properties are represented in undrained type (A) and undrained type (B) using Mohr-Coulomb total stress analysis (TSA), effective stress analysis (ESA), and the undrained strength analysis (USA) using SHANSEP concept. To capture this effect, serious of numerical models are carried out using 2D finite element PLAXIS. In these models, the concrete diaphragm wall is used as a support system with horizontal struts installed at different levels. The soil properties used in this research have the same properties of Northwest Sinai clay.Moreover, this study discusses different factors affect the excavation stability such as; excavation geometry and wall stiffness. For each numerical model, surface settlement, lateral wall deformations and straining actions on side supports are presented