...Sergio A. Villalobos; Luis Figueroa; Felipe A. Villalobos; Javier Leyton; Frank Sanhueza Soil nailing stability problems are usually studied under two-dimensional conditions. However, actual soil-nailed walls and potential failure surfaces are in fact three-dimensional (3-D). Seeing that, this work...

... of Portland cement was added to a sand, and its beneficial shear strengthening effects were evaluated under a range of multiaxial stress paths. The influence of the orientation of the principal axes of stress and strain on the stress–strain response and failure of cemented sand has only been scarcely...

... of the stress–strain response of the geomaterial. However, as cement-treated clays behave differently to untreated clay in its natural state, the classic constitutive models may not give reasonable results and the failure envelope has been found to be non-linear. An attempt was made in this work to simulate...

... with the experimental observations. Figure 2. Schematic sketch of the three different planes adopted in the stress analysis of the root–soil interface In the above equation, τ f is the shear stress on the failure plane at failure of the shear strength, c ′ a is the adhesion...

... (Alshibli et al., 2003 ; Alshibli and Akbas, 2007 ; Peters et al., 1988). This could be a cause of concern when strength parameters from triaxial results are applied to field problems, which might end up giving a lower factor of safety in terms of strain at failure. Figure 3...

... and three rows of geosynthetic, were designed to evaluate the behaviour of geosynthetic in AGS slope models. 16 07 2018 20 11 2018 ICE Publishing: All rights reserved 2019 failure geosynthetic applications groundwater One of the techniques utilised to enhance the in situ...

... by an artificially cemented soil-reinforcing layer bearing on weak foundation soil, considering its lateral extension. Tests of strip footings on a loose sandy soil, as well as numerical analysis by the finite-element method, were carried out. Two distinct types of failure were observed. In the first, the cement...

.... The length of the cut-off wall of the dam was determined by geological conditions and applications. Determination of the elevation of the cut-off wall must consider the following aspects. (a) The purpose of constructing a cut-off wall is to solve the problems of seepage-induced failure of the base...

...) is still subject to further investigation. excavation failure grouting 23 10 2016 25 07 2017 ICE Publishing: All rights reserved 2017 1 S uc ( gr ) = S u ( g ) I R + S uc ( 1 − I R ) 2 S ue ( gr ) = ζ S u...

... caused an increase in initial pre-consolidation stress of 70 kN/m² for a soft clay soil to 300 kN/m² for a soil stabilised with 0·7% nano-silica. Undrained compressive strength also increased by up to 56%. An increase in nano-silica content led to a reduction in failure strain...