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Volume 40 Issue 10
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SHAO Xiao-quan, CHI Shi-chun, TAO Yong. Numerical simulation of size effect on shear strength and deformation behavior of rockfill materials[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1766-1772. DOI: 10.11779/CJGE201810002
Citation: SHAO Xiao-quan, CHI Shi-chun, TAO Yong. Numerical simulation of size effect on shear strength and deformation behavior of rockfill materials[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1766-1772. DOI: 10.11779/CJGE201810002
shu

Numerical simulation of size effect on shear strength and deformation behavior of rockfill materials

  • 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;
    2. Institute of Earthquake Engineering, School of Hydraulic Engineering, Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China;
    3. Shanghai Waterway Engineering Design and Consulting Co., Ltd., Shanghai 200120, China

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  • Received Date: June 19, 2017
  • Published Date: October 24, 2018
    Graphical Abstract
    • Abstract
  • The scale effect of rockfill materials is crucial to predicting the strength and deformation of earth-rockfill dams. Due to their large particle size and the experimental restrictions, large triaxial tests on full scale samples are seldom conducted. The size effect coefficient for single particle ranging from 10 to 40 mm in diameter is measured by single particle crushing tests. The discrete element method is adopted here, and the results show that this method can reproduce the strength and deformation of dam rockfill materials with scaled gradation well. The grain size distribution of the prototype samples is parallel to the scaled one, and the large samples are simulated. The strength parameters of samples with different sizes are studied. This work may offer a possible way to get the strength and deformation parameters for prototype samples from the laboratory results.
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    • References (23)
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