根据现有成果 ,直接导出了起动切应力、起动流速与起动概率之间的关系。利用这些关系 ,计算了国内外数十种无粘性沙起动条件所对应的起动概率。从而为合理选用起动公式提供了科学依据 According to the existing results, the relationship between the starting shear stress, the starting flow rate and the starting probability is derived directly. Using these relations, the starting probabilities corresponding to dozens of non-stick sand starting conditions at home and abroad are calculated. Which provides a scientific basis for choosing the starting formula reasonably