A series of physical modeling tests were conducted by means of a beam type geotechnical centrifuge machine in order to investigate the drainage impact on the slope failure mechanism under centrifugal acceleration. Meanwhile, the phenomenon of stress redistribution in undercut slopes and the formation of arching effect were studied. For this purpose, a poorly graded sandy soil (Silica sand No. 6...

Predicting the inner displacements of deep vertical shafts during excavation process has been a difficult task considering geological, structural, and constructional influences. In fact, two-dimensional (2D) analytical solution based on retaining wall model remains insufficient for understanding actual behavior an excavation. This is because deformation becomes complicated due to unexpected arc...

in this study, the mechanical behavior of vanyar dam was evaluated at the end of construction. a two-dimensional numerical analysis was conducted based on a finite element method on the largest cross-section of the dam. the data recorded by the instruments located in the largest cross-section were compared with the results of the numerical analysis at the place of instruments. the settlement, p...

The face stability of shallow tunnels was investigated with small-scale model experiments at single gravity. Aim of the research was to detect the evolution of failure mechanisms in dense and loose soil samples with varying overburden above the tunnel. Moreover, the quality of proposed theoretical/numerical approaches for the determination of a necessary support pressure pf was assessed. The re...

One of the important parameters in undercut slopes design is the determination of the maximum stable undercut span. The maximum stable undercut span is a function of slope geometry, the strength parameters of the slope material, condition of discontinuities, underground water condition, etc. However, the desired production capacity and therefore the size of excavating equipment will sometimes a...

This study presents a multi-effect coupling model to optimize the design of geosynthetic-reinforced pile-supported embankment (GRPSE) considering effects soil arching, membranes, and pile–soil interaction on coastal highway. The developed could GRPSE fulfill construction requirements at relatively low project cost. was achieved by adjusting critical factors that govern settlement GRPSEs, such a...

The collected field data from well-instrumented reinforced embankments in the framework of a real project for extension inner-city area at HafenCity Hamburg is used to study effect environmental changes on load transfer process over structure lifetime. A particular focus put improve understanding mechanism soil embankment pile foundations through geosynthetic layer and investigate corresponding...