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本文综述了场地条件对输入地震动的影响特征及国内外研究现状,着重讨论了场地上组合效应,覆盖厚度对地震动的影响,研究结果表明目前场地评价仅以场地的平均指标作为场地的评估标准不尽合理,应考虑场地土的组合效应,上覆地层的厚度及下部软夹层的影响.
This paper summarizes the characteristics of the impact of site conditions on ground motions and the status quo at home and abroad. The effects of the combination effect and the thickness of the ground on the ground motions are discussed. The results show that the current site assessment only uses the average site index as the site assessment The standards are not reasonable and should consider the combined effect of site soil, overburden thickness and the impact of the lower soft interlayer.