most of the earth's crust contains fluids, and fractures are common throughout the upper part. they exist at a wide range of scales from micro-fractures within grains to major faults and shear zones that traverse the crust. in this paper, the stress-dependent permeability in fractured rock masses have been investigated considering the effects of nonlinear normal deformation and shear dilation o...

The paper presents a finite deformation, isotropic hardening, non–associative elastic–plastic constitutive model ( FD _ Milan model) for describing the mechanical behavior of wide range bonded natural geomaterials such as stiff overconsonsolidated clays, porous soft rocks or bio–improved soils. formulation is based on multiplicative split deformation gradient and assumption hyperelastic behavio...

[1] The Thurwieser landslide that occurred in Italy in 2004 and the seismic waves it generated have been simulated and compared to the seismic signal recorded a few tens of kilometers from the landslide source (i.e., landquake). The main features of the low frequency seismic signal are reproduced by the simulation. Topography effects on the flowing mass have a major impact on the generated seis...

Geomechanics and TunnellingVolume 16, Issue 2 ContentFree Access Content: Tunnelling 2/2023 First published: 14 April 2023 https://doi.org/10.1002/geot.202370202AboutPDF 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 W...

Geomechanics and TunnellingVolume 15, Issue 2 p. 244-244 PreviewFree Access Preview: Tunneling 3/2022 First published: 11 April 2022 https://doi.org/10.1002/geot.202270209AboutPDF 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 ac...

Discontinuity layout optimization (DLO) is a recently presented topology optimization method for determining the critical layout of discontinuities and the associated upper bound limit load for plane two-dimensional and three-dimensional (3D) problems. The modelling process (pre-processing) for DLO includes defining the discontinuities inside a specified domain and building the target function ...

This paper presents a systematic theoretical and numerical evaluation of three common block preconditioners in a Krylov subspace method for solving symmetric indefinite linear systems. The focus is on large-scale real world problems where block approximations are a practical necessity. The main illustration is the performance of the block diagonal, constrained, and lower triangular precondition...