EFFECTS OF INTERGRANULAR ADHESIVE FORCE ON FAILURE CRITERION FOR GRANULAR MATERIAL
With the distinct element method analysis (DEM) in three-dimensional state, simulations of true triaxial test for dilative and contractive granular materials was carried out. In this analysis, influence of meniscus water for unsaturated soil is expressed by introducing a constant intergranular adhesive force that acts perpendicular to tangential plane at contact point. This analysis intends to simulate a state of unsaturated soil under low degree of saturation. Influences of the intergranular adhesive force on failure criterion and shear deformation are examined. The extended Lade failure criterion on the octahedral plane explains well the failure stress state for dilative and contractive granular materials. This result means that the extended Lade failure criterion is able to use the failure criterion for unsaturated soil and the other granular materials with cohesion.
Shoji Kato Tatsuo Sakakibara Yasutaka Kuriyama
Department of Archetcture and Civil Engineering, Kobe University, Japan Graduate school of Science and Technology, Kobe University, Japan
国际会议
南京
英文
353-358
2007-04-21（万方平台首次上网日期，不代表论文的发表时间）