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现代弱震与历史强震联合计算b值方法及分析

, PP. 26-33

Keywords: 强弱震,分时段,年发生率,b值

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Abstract:

本文以工程地震中划分、研究的六盘山-祁连山地震带和银川-河套地震带为例,分析了应用现代弱震资料与历史强震资料分时段年发生率联合方法求解某一地震带b值的必要性和可行性。通过联合现代弱震资料及历史中强以上地震资料,利用分时段不同震级档地震的年发生率进行拟合,给出六盘山-祁连山地震带b值为0.61±0.121,银川-河套地震带b值为0.68±0.075。所给出的结果对分析这两个地震带上工程地震安全性评价结果有重要意义,同时也对其它地震带工程地震安全性评价中b值的计算分析有一定参考价值。

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