中文摘要：

易破碎是粗粒料显著的特点,颗粒破碎对粗粒料的抗剪强度、内摩擦角、剪胀以及渗透系数均会产生影响。通过室内大型三轴试验,对粗粒料的颗粒破碎以及应力进行了分析,建立了破碎耗能与塑性功之间的关系式,并将其引入土体受力变形过程中的能量方程,采用相关联流动法则推导出了粗粒土的屈服函数,并绘制出在不同围压下经颗粒破碎修正的屈服面。

英文摘要：

Particle breakage is an evident characteristic of coarse granular materials,which will affect the shear strength,internal friction angle,shear dilatancy and permeability coefficient.The particle breakage and the stress of coarse aggregates are analyzed based on large-scale triaxial tests.The energy equation during shearing is developed incorporating the relationship between the energy consumption due to particle crushing and the plastic work.And then,the yield function is obtained through adopting the associated flow rules,by which the yield surfaces amended by the particle breakage at every confining pressure are plotted.