An experimental and energy approach study of the crushing of sliding layer granular material in a grain crushing-induced landslide

W. Hu, Z. Y. Yin, C. Dano, P. Y. Hicher

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationLandslides and Engineered Slopes
Subtitle of host publicationProtecting Society through Improved Understanding - Proceedings of the 11th International and 2nd North American Symposium on Landslides and Engineered Slopes, 2012
EditorsErik Eberhardt, Corey Froese, A. Keith Turner, Serge Leroueil
PublisherCRC Press/Balkema
Pages1063-1069
Number of pages7
ISBN (Print)9780415621236
Publication statusPublished - 1 Jan 2012
Externally publishedYes
Event11th International Symposium on Landslides and 2nd North American Symposium on Landslides, 2012 - Banff, Canada
Duration: 2 Jun 20128 Jun 2012

Publication series

NameLandslides and Engineered Slopes: Protecting Society through Improved Understanding - Proceedings of the 11th International and 2nd North American Symposium on Landslides and Engineered Slopes, 2012

Conference

Conference11th International Symposium on Landslides and 2nd North American Symposium on Landslides, 2012
CountryCanada
CityBanff
Period2/06/128/06/12

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geotechnical Engineering and Engineering Geology

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