一些学者已经指出,场地的影响烈度I与其发生的频次N(l)具经验关系lgN(I)=c-dl。本文说明,在某些假设下,上式可视为b 值公式的另一种表现形式,因而与b值关系具有程度相当的普遍性。本文讨论了b值与上述d值之间的数量关系。利用上述普遍关系,本文采用查本地史料与利用外地中强震经衰减推算相结合的方法研究了合肥市的烈度评定问题。 Some scholars have pointed out that the influence intensity I of the site has an empirical relationship with its occurrence frequency N (l) lgN (I) = c-dl. This paper shows that under certain assumptions, the above formula can be seen as another manifestation of the b-value formula, and thus the relationship with the b value of a considerable degree of universality. This article discusses the relationship between the b value and the above d value. Utilizing the above general relations, this paper studies the intensity assessment of Hefei using the combination of local historical data and attenuation estimation of strong earthquakes in the field.