Geomechanics and TunnellingVolume 15, Issue 6 Cover PictureFree Access Picture: Tunnelling 6/2022 First published: 08 December 2022 https://doi.org/10.1002/geot.202270601AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms Conditions of Use check box below share version article.I have read acc...

Recent advances in experimental characterization techniques offer unique opportunities to evaluate mechanical properties of geomaterials. In this paper, authors introduce two such techniques that have significant potential to impact geomechanics community. The technique of using Instrumented indentation testing using nano-indenter to evaluate hardness and modulus of individual sand particles is...

Abstract The first introduction of fuzzy theory in the nineteenth century created room for continuous research and application various fields. Fuzzy set has been globally applied geotechnical engineering, this field continues to date. inference system is considered be one most popular techniques adopted resolve some geomechanical challenges faced both surface underground excavations. This paper...

Granular anisotropy is attributable to many complex behaviors of granular materials and reflects important microstructures at the grain scale, and should be fully considered towards the development of realistic constitutive models for such materials. In this paper, we present a study on the behavior of anisotropy using a three-dimensional Discrete Element Method (DEM). Isotropic packings of san...

The objective of the present project was to study how high temperatures affect the different mechanical parameters of chalks. The general result is that both cohesion and the hydrostatic yield stress are typically reduced about 20 % in going from 20 to 130 C, but the magnitude of this reduction may be chalk type dependent.

The concept of virtual reality is a very powerful tool for enhancing the human perception of complex threedimensional information. The field of geomechanics is predestined for such an application since we are not only dealing with complex 3-D information about excavation geometries and geological features but also may be interested in displaying results of numerical simulations which may by the...

Geomechanics and TunnellingVolume 16, Issue 2 Cover PictureFree Access Picture: Tunnelling 2/2023 First published: 14 April 2023 https://doi.org/10.1002/geot.202370201AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms Conditions of Use check box below share version article.I have read accept...

The paper is concerned with a micromechanical formulation of force transmission within an unsaturated soil as a three-phase system composed of idealized spherical particles connected by a pore water menisci network. It is proposed here a tensorial effective stress equation that can be viewed as a generalized Bishop’s equation in which the elusive effective stress parameter χ is elucidated. The ...