Open AccessHard X‐ray imaging for landslide research
Author(s) -
Weon B. M.,
Je J. H.,
Gremaud G.
Publication year - 2010
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049510035363
Subject(s) - landslide , synchrotron , penetration (warfare) , synchrotron radiation , x ray , phase contrast microscopy , granular material , geology , relaxation (psychology) , materials science , visualization , physics , optics , geotechnical engineering , computer science , mathematics , artificial intelligence , psychology , social psychology , operations research
Synchrotron phase‐contrast hard X‐ray imaging is used to provide highly efficient direct visualization of landslide dynamics and granular flows in fully wet granular piles. High penetration capability and phase‐contrast enhancement of hard X‐rays offer marked advantages in the precise tracking of individual granular movements through a thick water medium. It is revealed that the stress accumulation follows a power‐law evolution while the relaxation follows an exponential one. The onset of landslide emerges at the trade‐off of the two evolutions.