Microstructural analysis of time-dependent cracking in shale
作者： Frederic L. Pellet
关键词: Geotechnical engineering 、 Deformation (engineering) 、 Matrix (geology) 、 Compression (geology) 、 Creep 、 Cataclastic rock 、 Materials science 、 Brittleness 、 Rock mechanics 、 Crack closure
摘要: This paper analyses crack patterns in argillaceous rocks induced by time-dependent mechanical loadings. To achieve this, thin sections were extracted from specimens after strain-rate-controlled compression tests and creep tests. The microstructural observations, made using an optical microscope a scanning electron microscope, highlighted the fact that failure modes of are dependent on rate loading. For slow-loading rates, macroscopic deformations appear to be mainly due development sub-vertical network persistent macrocracks matrix, whereas for fast-loading tests, second microcracks appears, controlled rock’s structural anisotropy. When undergo fast loading, observed is more brittle with cataclastic deformation grain crushing evidence within samples. Observations width orientations clearly show how influence rock prope...
sci-hub.se 参考文章(23)
J. P. Poirier, Plastic Rheology of Crystals Mineral Physics & Crystallography: A Handbook of Physical Constants. pp. 237- 247 ,(2013) , 10.1029/RF002P0237
Frederic L. Pellet, Geraldine Fabre, Damage Evaluation with P-Wave Velocity Measurements during Uniaxial Compression Tests on Argillaceous Rocks International Journal of Geomechanics. ,vol. 7, pp. 431- 436 ,(2007) , 10.1061/(ASCE)1532-3641(2007)7:6(431)
Yifeng Chen, Chuangbing Zhou, Yongqing Sheng, Formulation of strain-dependent hydraulic conductivity for a fractured rock mass International Journal of Rock Mechanics and Mining Sciences. ,vol. 44, pp. 981- 996 ,(2007) , 10.1016/J.IJRMMS.2006.12.004
Takashi Nishiyama, Hiromu Kusuda, Identification of pore spaces and microcracks using fluorescent resins International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. ,vol. 31, pp. 369- 375 ,(1994) , 10.1016/0148-9062(94)90904-0
Dmitriy Silin, Timothy J. Kneafsey, Shale Gas: Nanometer-Scale Observations and Well Modelling Journal of Canadian Petroleum Technology. ,vol. 51, pp. 464- 475 ,(2012) , 10.2118/149489-PA
F. Pellet, M. Roosefid, F. Deleruyelle, On the 3D numerical modelling of the time-dependent development of the damage zone around underground galleries during and after excavation Tunnelling and Underground Space Technology. ,vol. 24, pp. 665- 674 ,(2009) , 10.1016/J.TUST.2009.07.002
Suzanne Raynaud, Dominique Ngan-Tillard, Jacques Desrues, Frédéric Mazerolle, Brittle-to-ductile transition in Beaucaire marl from triaxial tests under the CT-scanner International Journal of Rock Mechanics and Mining Sciences. ,vol. 45, pp. 653- 671 ,(2008) , 10.1016/J.IJRMMS.2007.08.007
Géraldine Fabre, Frédéric Pellet, Creep and time-dependent damage in argillaceous rocks International Journal of Rock Mechanics and Mining Sciences. ,vol. 43, pp. 950- 960 ,(2006) , 10.1016/J.IJRMMS.2006.02.004
N. Gatelier, F. Pellet, B. Loret, Mechanical damage of an anisotropic porous rock in cyclic triaxial tests International Journal of Rock Mechanics and Mining Sciences. ,vol. 39, pp. 335- 354 ,(2002) , 10.1016/S1365-1609(02)00029-1
Peter Blümling, Frédéric Bernier, Patrick Lebon, C. Derek Martin, The excavation damaged zone in clay formations time-dependent behaviour and influence on performance assessment Physics and Chemistry of The Earth. ,vol. 32, pp. 588- 599 ,(2007) , 10.1016/J.PCE.2006.04.034