利用人工钙质砂和三轴剪切试验手段，就颗粒破碎及其对钙质砂变形和强度特性的影响进行分析研究。结果表明，颗粒破碎程度与对其输入的塑性功密切相关；颗粒破碎的发生使钙质砂剪胀性减小，体积收缩应变增大，峰值强度降低。 Using artificial calcareous sand and triaxial shear test methods, the effect of particle crushing and its effect on the deformation and strength characteristics of calcareous sand was analyzed. The results show that the degree of particle crushing is closely related to the input of plastic work; the occurrence of particle crushing reduces the dilatancy of the calcareous sand, increases the volume shrinkage strain, and decreases the peak strength.