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Underground facilities are an integral part of the infrastructure of modern society and are used for a wide range of applications, including subways and railways, highways, material storage, sewage and water transport. This paper presents a study of the behavior of multi-storey building consists of three underground floors and six floors above the ground surface. The computer software ADINA (Automatic Dynamic Incremental Nonlinear Analysis) is used in simulating the static behavior of the multi-storey building with surrounding soil domain. The soil is modeled as Mohr-Coulomb material, whereas the multi-storey building is modeled as elastic material simulating the reinforced concrete material. Many parameters are considered in the analysis, such as; soil type, diaphragm walls thickness and embedment depth through the soil media. The results indicated that, during the static loading analysis increasing the diaphragm walls widths and embedment depth is not effective in reducing the lateral deformations in case of clay soil. In such case, the stability of the diaphragm walls is achieved using ground anchors support system. On the other hand, increasing the diaphragm wall embedment depth in the dense soil resulted in a noticeable reduction in the lateral deformations. In such case, ground anchors are also used for practical reasons and to account for unexpected loads such as earthquake which may occur during the construction period.

STATIC ANALYSIS OF UPLIFT FORCES ON BURRIED FLOATING FOUNDATION AND DIAPHRAGM WALLS