Hydromechanical rock mass fatigue in deep-seated landslides accompanying seasonal variations in pore pressures

G Preisig, E Eberhardt, M Smithyman, A Preh… - Rock Mechanics and …, 2016 - Springer
The episodic movement of deep-seated landslides is often governed by the presence of
high pore pressures and reduced effective stresses along active shear surfaces. Pore …

Hydro-fracturing versus hydro-shearing: a critical assessment of two distinct reservoir stimulation mechanisms

VS Gischig, G Preisig - ISRM Congress, 2015 - onepetro.org
Hydraulic stimulation of deep reservoirs is an essential procedure for developing
engineered/enhanced geothermal systems (EGS), but also in other Geo-energy contexts …

[HTML][HTML] Hydromechanical insight of fracture opening and closure during in-situ hydraulic fracturing in crystalline rock

N Dutler, B Valley, V Gischig, M Jalali, B Brixel… - International Journal of …, 2020 - Elsevier
Six hydraulic fracturing (HF) experiments were conducted in situ at the Grimsel Test Site
(GTS), Switzerland, using two boreholes drilled in sparsely fractured crystalline rock. High …

Hydromechanical rock slope damage during Late Pleistocene and Holocene glacial cycles in an Alpine valley

LM Grämiger, JR Moore, VS Gischig… - Journal of …, 2020 - Wiley Online Library
Subglacial water pressures influence groundwater conditions in proximal alpine valley rock
slopes, varying with glacier advance and retreat in parallel with changing ice thickness …

Progressive failure in deep-seated rockslides due to seasonal fluctuations in pore pressures and rock mass fatigue

E Eberhardt, G Preisig, V Gischig - Landslides and engineered …, 2018 - taylorfrancis.com
The episodic movement of deep-seated rockslides is often associated with seasonal
variations in precipitation and groundwater recharge. Acceleration and deceleration phases …

An analytical solution for solitary porosity waves: dynamic permeability and fluidization of nonlinear viscous and viscoplastic rock

JAD Connolly, YY Podladchikov - Crustal permeability, 2012 - Wiley Online Library
Porosity waves correspond to a steady‐state solution to the coupled hydraulic and rheologic
equations that govern the flow of the fluid through the matrix and matrix deformation. This …

Development of connected permeability in massive crystalline rocks through hydraulic fracture propagation and shearing accompanying fluid injection

G Preisig, E Eberhardt, V Gischig, V Roche… - Crustal …, 2012 - Wiley Online Library
The ability to generate deep flow in massive crystalline rocks is governed by the
interconnectivity of the fracture network and its permeability, which in turn is largely …

Importance of fracture deformation throughout hydraulic testing under in situ conditions

P Schmidt, N Dutler, H Steeb - Geophysical Journal International, 2022 - academic.oup.com
In this work, we propose a hydro-mechanical simulation model to study the strong interaction
of fluid flow and fracture deformation under in situ stress conditions. The general model is …

Modelling discharge rates and ground settlement induced by tunnel excavation

G Preisig, A Dematteis, R Torri, N Monin… - Rock mechanics and …, 2014 - Springer
Interception of aquifers by tunnel excavation results in water inflow and leads to drawdown
of the water table which may induce ground settlement. In this work, analytical and …

[图书][B] Hydro-mechanical coupling of flow in deformable high-aspect ratio fractures

P Schmidt - 2022 - elib.uni-stuttgart.de
Underground flow processes in fractured porous media possess a great significance
regarding the optimization of energy production based on natural resources. Energy is …