TY - GEN
T1 - An experimental and energy approach study of the crushing of sliding layer granular material in a grain crushing-induced landslide
AU - Hu, W.
AU - Yin, Z. Y.
AU - Dano, C.
AU - Hicher, P. Y.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Motivated by the Nikawa landslide from the Hyogoken-Nambu (Kobe) earthquake, Japan, the hypothesis of “sliding-surface liquefaction” was promoted by Sassa (1992). Sliding surface liquefaction is quite different from conventional liquefaction. Grain breakage and the consequent increase in volume of solids is the mechanism of pore pressure build up, leading to different type “liquefaction”. A better understanding of the behaviour of crushable granular material, under monotonic and cyclic loading, is very important to the study of grain crushing-induced landslide mechanisms. For this purpose, drained triaxial tests on crushable limestone grains, under both monotonic and cyclic loadings, were carried out. The grain size distribution, size of crushing surface, and the plastic work are measured for each test. Two approaches on evaluating the change of grading under different conditions are studied. Furthermore, a unified exponential function based on the energy approach is proposed which can successfully describe the change of grading with plastic work for tests under different loading conditions.
AB - Motivated by the Nikawa landslide from the Hyogoken-Nambu (Kobe) earthquake, Japan, the hypothesis of “sliding-surface liquefaction” was promoted by Sassa (1992). Sliding surface liquefaction is quite different from conventional liquefaction. Grain breakage and the consequent increase in volume of solids is the mechanism of pore pressure build up, leading to different type “liquefaction”. A better understanding of the behaviour of crushable granular material, under monotonic and cyclic loading, is very important to the study of grain crushing-induced landslide mechanisms. For this purpose, drained triaxial tests on crushable limestone grains, under both monotonic and cyclic loadings, were carried out. The grain size distribution, size of crushing surface, and the plastic work are measured for each test. Two approaches on evaluating the change of grading under different conditions are studied. Furthermore, a unified exponential function based on the energy approach is proposed which can successfully describe the change of grading with plastic work for tests under different loading conditions.
UR - http://www.scopus.com/inward/record.url?scp=85070993249&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85070993249
SN - 9780415621236
T3 - Landslides and Engineered Slopes: Protecting Society through Improved Understanding - Proceedings of the 11th International and 2nd North American Symposium on Landslides and Engineered Slopes, 2012
SP - 1063
EP - 1069
BT - Landslides and Engineered Slopes
A2 - Eberhardt, Erik
A2 - Froese, Corey
A2 - Turner, A. Keith
A2 - Leroueil, Serge
PB - CRC Press/Balkema
T2 - 11th International Symposium on Landslides and 2nd North American Symposium on Landslides, 2012
Y2 - 2 June 2012 through 8 June 2012
ER -