Optimize the Placement of Nails in Soil Nailing By Three Dimensional Numerical Modeling

In recent years, the construction of urban development is one of the important activities in civil engineering that is performance largely in cities. In many of these projects need to be vertical to the ground excavation, Due to the recent (Loss of the walls) excavation discussion of this issue is of most interest to geotechnical engineers. Therefore, the safe and economic design and selection excavation the overhead rate applied is important, especially in urban areas, one of this excavation systems today are more urban setting procedure is nailing. In this paper the method is described, then place the nails and their optimization is performed using three-dimensional numerical modeling. In three-dimensional numerical modeling nails modeled by BEAM element, Shotcrete by PLATE element, soil by hardening soil model and element interface to model the interaction of the wall and the soil used.

Keywords:

Excavation , Retaining structure , Soil nailing , Horizontal displacement , Settlement