Lattice modeling of excavation damage in argillaceous

Lattice modeling of excavation damage in argillaceous

Lattice modeling of excavation damage in argillaceous clay

Furthermore, excavation damage and fracturing processes in rock formations are simulated for different geomechanical configurations, such as rock anisotropy and tectonic heterogeneity. The simulated excavation damage characteristics are realistic and comparable with the actual field observation at a tunnel located in an argillaceous clay formation.

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Experiments and modelling of EDZ behaviour in argillaceous

Experiments and modelling of excavation damage zone (EDZ) behaviour in argillaceous and crystalline rocks (Work Package 4), EC FORGE Project Report D4.24-R, 2013. 2. Now (FANC-AFCN) 3. Now Univeristé Libre de Bruxelles. 4 Now Durham University

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Experiments and modelling of EDZ behaviour in argillaceous

Experiments and modelling of excavation damage zone (EDZ) behaviour in argillaceous and crystalline rocks (Work Package 4), EC FORGE Project Report D4.24-R, 2013. 2. Now (FANC-AFCN) 3. Now Univeristé Libre de Bruxelles. 4 Now Durham University

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Report on Modeling Coupled Processes in the Near Field of

Report on Modeling Coupled Processes in the Near Field of a Clay Repository August 2012 iii *NOTE In some cases there may be a milestone where an item is being fabricated, maintenance is being performed on a facility, or a document is being issued through a formal document control process where it specifically calls out a formal review

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Volumetric Digital Image Correlation Applied to X‐ray

Özge Dinç, Luc Scholtès, Discrete Analysis of Damage and Shear Banding in Argillaceous Rocks, Rock Mechanics and Rock Engineering, 10.1007/s00603-017-1397-6, 51, 5, (1521-1538), (2018). Crossref Zhuang Cheng, Jianfeng Wang, A particle-tracking method for experimental investigation of kinematics of sand particles under triaxial compression

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Lattice modeling of excavation damage in argillaceous clay

Feb 08, 2020 · DOE PAGES Journal Article: Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy Journal Article: Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy

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Lattice modeling for the influence of geometrical patterns

Jun 23, 2021 · Kim, K, Rutqvist, J, Birkholzer, J. Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy. Tunn Undergr Space Technol 2020; 98: 103196. Google Scholar | Crossref

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Numerical modeling of the pathological case of a damaged

Aug 20, 2018 · Sometimes this phenomenon requires the re-excavation of the underground structure. The Tymfristos road tunnel in Greece is a good example. Surface settlement or differential settlement: the excavation of urban underground structures in soft terrain often results in a settlement of the soil above the tunnel, which can damage surface infrastructures.

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A viscoplastic model including damage for deep

An example of a blind prediction of the excavation of a drift parallel to ah (using this new model) is presented and compared to in situ measurement. Results show the influence the damage state on viscoplastic strain rates, advantages and disadvantages of this new approach. Keywords: Long term behaviour, viscoplastic model, damage, deep claystone

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Lattice modeling for the influence of geometrical patterns

Kim K, Rutqvist J and Birkholzer J. Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy.

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CEDB Database - ASCE

A Coupled Damage and Plasticity Drucker-Prager Model Based on Thermodynamics of Internal Variables. Analysis of a Deep Shaft Excavation in Argillaceous Rock. Centrifuge Modeling of Face Excavation in Tunnels with a Deformable Lining.

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Lattice modeling of excavation damage in argillaceous clay

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Lattice modeling for the influence of geometrical patterns

Kim K, Rutqvist J and Birkholzer J. Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy. Tunn Undergr Space Technol 2020; 98

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Excavation damage, and water and gas migration in an

The model was able to capture the main features of the experiment, such as the prediction of the shape and extent of the excavation damage zone and its influence on water and gas migration. To obtain a copy of the abstract's document, please contact us at [email protected] or call 613-995-5894 or 1-800-668-5284 (in Canada).

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Name: Dr. Kunhwi Kim

, J. Rutqvist, J. Birkholzer (2019), "Lattice modeling of excavation damage in argillaceous clay formations: Influence of deformation and strength anisotropy," Tunnelling and Underground Space Technology incorporating Trenchless Technology Research, Article in Press. K. Kim, J. Rutqvist, S. Nakagawa, J. Birkholzer (2017), "TOUGH–RBSN simulator for hydraulic fracture …

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How Equivalent Are Equivalent Porous Media? (Journal

May 10, 2021 · Journal Name: Geophysical Research Letters. Additional Journal Information: Journal Name: Geophysical Research Letters Journal Volume: 48 Journal Issue: 9; Journal ID: ISSN 0094-8276. Publisher: American Geophysical Union (AGU) Country of …

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PFC/FLAC Coupled Numerical Simulation of Excavation Damage

In the present study, a coupled numerical method is used to study EDZ (excavation damage zone) in a deep schist tunnel. Two codes, Fast Lagrangian Analysis of Continua (FLAC) and Particle Flow Code (PFC) are coupled to implement the simulation. The motive to apply the FLAC/PFC coupled approach is to take advantage of each modeling scheme while at the same time …

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Investigation of desaturation in an old tunnel and new

Jul 08, 2008 · A numerical investigation of the desaturation process at the argillaceous Tournemire site has been carried out. This desaturation is initialized by the contact of the saturated rock with the ambient air in excavated openings. The used hydraulical model is based on the Richards' approximation for unsaturated one phase flow coupled with the deformation …

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Numerical modeling of the pathological case of a damaged

Aug 20, 2018 · Sometimes this phenomenon requires the re-excavation of the underground structure. The Tymfristos road tunnel in Greece is a good example. Surface settlement or differential settlement: the excavation of urban underground structures in soft terrain often results in a settlement of the soil above the tunnel, which can damage surface infrastructures.

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Coupled Hydro-Mechanical Analysis of Excavation Damage

Coupled Hydro-Mechanical Analysis of Excavation Damage Zones around an Underground Opening in Sedimentary Rock H. Abdi 1, T.S. Nguyen2, 1, E. Evgin*1, M. Fall, and G. Su2 1Department of Civil Engineering, University of Ottawa, Ontario, Canada 2Canadian Nuclear Safety Commission, Ottawa, Ontario, Canada *Corresponding author: Department of Civil Engineering, …

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