Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Mark S. Diederichs"'
Publikováno v:
Mining, Vol 2, Iss 3, Pp 463-486 (2022)
The excavation of tunnels in brittle rocks with high in-situ strengths under large deviatoric stresses has been shown to exhibit brittle failure at the periphery of tunnels parallel to the maximum in-situ stress. This failure can either occur instant
Externí odkaz:
https://doaj.org/article/41a5c1d57c3c43fb8a485bbabcc0966d
Autor:
Kiarash Farahmand, Mark S. Diederichs
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 13, Iss 1, Pp 60-83 (2021)
The objective of this paper is to develop a methodology for calibration of a discrete element grain-based model (GBM) to replicate the hydro-mechanical properties of a brittle rock measured in the laboratory, and to apply the calibrated model to simu
Externí odkaz:
https://doaj.org/article/c5fb6331de594786beef7f295f5e0676
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 12, Iss 3, Pp 427-448 (2020)
A recent research campaign at a Canadian nickel-copper mine involved instrumenting a hard rock sill drift pillar with an array of multi-point rod extensometers, distributed optical fibre strain sensors, and borehole pressure cells (BHPCs). The instru
Externí odkaz:
https://doaj.org/article/15e30ec9f36244e689133f4c3ae7881b
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 11, Iss 1, Pp 12-37 (2019)
Rockbursting in deep tunnelling is a complex phenomenon posing significant challenges both at the design and construction stages of an underground excavation within hard rock masses and under high in situ stresses. While local experience, field monit
Externí odkaz:
https://doaj.org/article/7f60caca28d545bca2af8ffd0bdeee85
Autor:
Matthew A. Perras, Mark S. Diederichs
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 8, Iss 1, Pp 60-74 (2016)
During the construction of an underground excavation, damage occurs in the surrounding rock mass due in large part to stress changes. While the predicted damage extent impacts profile selection and support design, the depth of damage is a critical as
Externí odkaz:
https://doaj.org/article/ca65eddafaa64a249ffb785afc7cdf2d
Publikováno v:
Canadian Geotechnical Journal. 59:1643-1659
Discontinuity behaviour can have a large impact on geotechnical engineering design; therefore, it is essential to determine their geomechanical properties to predict rockmass behaviour and mitigate any potential failure that may affect personnel safe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a54ebc9f698999aef5c5c4b64459fe73
https://doi.org/10.1139/cgj-2021-0576
https://doi.org/10.1139/cgj-2021-0576
Publikováno v:
Rock Mechanics and Rock Engineering. 55:2615-2630
The uniaxial compressive strength (UCS) test is crucial in determining the strength and stiffness behavior of intact rock and is frequently utilized by industry to determine project site characteristics. A fundamental procedure of UCS testing is stra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdd560eddbb0f8af4dafc1a5cd95126f
https://doi.org/10.1007/s00603-021-02643-4
https://doi.org/10.1007/s00603-021-02643-4
Publikováno v:
Rock Mechanics and Rock Engineering. 55:2631-2650
The importance of discontinuity geomechanical properties is increasing as the use of numerical models with explicit or discrete rock mass structure becomes the state of practice. Joint normal stiffness and joint shear stiffness are two parameters tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f005088fc6876c079542108811752ba7
https://doi.org/10.1007/s00603-021-02632-7
https://doi.org/10.1007/s00603-021-02632-7
Publikováno v:
Rock Mechanics and Rock Engineering. 54:5517-5532
Two fundamental fracturing mechanisms act as the primary drivers for burden removal in rock blasting: the propagation of radial cracks from the borehole due to the internal detonation pressure and the tensile failure relatively close to a free surfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abbd70bc2c38213d1aa88fa382f7e8b7
https://doi.org/10.1007/s00603-021-02572-2
https://doi.org/10.1007/s00603-021-02572-2
Autor:
Mark S. Diederichs, K. Farahmand
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 13, Iss 1, Pp 60-83 (2021)
The objective of this paper is to develop a methodology for calibration of a discrete element grain-based model (GBM) to replicate the hydro-mechanical properties of a brittle rock measured in the laboratory, and to apply the calibrated model to simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0565eaa54edd03321129275492ac6420
http://www.sciencedirect.com/science/article/pii/S1674775520301219
http://www.sciencedirect.com/science/article/pii/S1674775520301219