中文摘要：

固体颗粒破碎后的粒径分布符合分形模型,颗粒破碎程度采用粒径分布的分维表示。本文采用垃圾炉渣的颗粒破碎试验,统计计算炉渣颗粒破碎的分维。收集总结了岩石颗粒破碎分维随破碎应力和破碎能量的变化规律,颗粒破碎的分维是变化的,随着破碎应力和破碎能量增加而增加,颗粒完全破碎后的粒径分布的分维趋于定值,为2.6左右。将颗粒破碎过程中变化的分维称为颗粒破碎的＂似分维＂,简称分维;分维的极限值称为＂真分维＂。结合颗粒破碎概率的Weibull统计理论,建立了颗粒破碎＂似分维＂与破碎应力和破碎能量的相关关系。

英文摘要：

The particle breakage is satisfied with the fractal model and characteristized by the fractal dimension.The particle breakage of the bottom ash from municipal solid waste incineration（ MSWI） is conducted,and the fractal dimension of particle breakage is analysized statistically. The evolution of the fractal dimension of particle breakage with the failure stress and breakage energy is studied based on the data collected in the literature. The value of the fractal dimension changes with the failure stress and breakage energy,and is gone by the name of the quasi fractal dimension. The quasi fractal dimension increases with the increases in the failure stress and breakage energy,and trends to a constant value 2. 60 or so. This limit value of the fractal dimension is called as the intrinsic fractal dimension. Relation of the quasi fractal dimension to the failure stress and breakage energy is proposed based on the Weibull statistics.