钙质砂在三轴剪切中颗粒破碎评价及其能量公式
EVALUATION OF CALCAREOUS SAND GRAINS CRUSHING AND ITS ENERGY EQUATION
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摘要: 钙质砂是一种易破碎粒状材料。本文在分析颗粒破碎机理的基础上,提出了颗粒破碎与剪胀耦合作用的破碎功表示式,并用实验证明了相对破碎Br 与1,Wp,WB 之间的关系,从而建立了钙质砂颗粒破碎的评价指标及其能量公式。Abstract: Calcareous sand is a kind of easily crushed granular materials. Based on analyzing the mechanism of grain breakage, the authors establishe a crushing energy equation coupling crushing with dilation. It is proved that the relationship bet ween B r and 1, W p and W B is confirmed by the experiments, and bence the evaluation index and energy equation for calcareous sand crushing are set.