Abstract
In this thesis, the case where both unconfined groundwater in surface layer and confined groundwater in deep layer are influenced by underground wall constructed along with excavated structure is assumed, and the ideal way of preservation measures of groundwater flow in such a excavated structure is mentioned.
In this research, the multilayer ground was modeled by three-dimensional finite element method, and connecting pipe as preservation measures of groundwater flow was overlapped with three-dimensional ground model. Moreover, The underground wall was modeled and built in three-dimensional ground model. And, the authors analyzed the influence on groundwater condition by changing the relation between depth of underground wall and depth of clay layer, permeability of clay layer, installation location and passing water ability of connecting pipe. When presumed depth and permeability of clay layer are different from actual ones, it is understood that there is little effect of preservation measures of groundwater flow from an analytical result.
