Abstract The paper deals with the problem of the seismic stability of excavation fronts in the ancient Roman city of Pompeii, a famous UNESCO World heritage site near Napoli, Italy, buried under 4–6 m of volcanic ashes and pumices during the eruption of Mount Vesuvius in 79 AD. The attention is focused on the Insula dei Casti Amanti, a block of masonry buildings in the city centre partly excavated in recent years. Ground motion recorded on outcropping rock compatible with the seismo-tectonic background and the spectrum specified by the Italian code for the life-safety limit state criteria were used for wave propagation analysis. Both 1-D and 2-D Seismic Response Analyses were carried out to identify both surface (topographic) and valley (morphology) effects. This study allowed to quantify in a detailed manner the seismic demand in the excavation fronts. Re-profiling interventions based on the classical pseudo-static approach would be too invasive for the archaeological site. On the contrary, the alternative Newmark-type approach, based on the evaluation of the permanent rotations of the potentially unstable soil mass, is much more appropriate for a sustainable definition of slope stabilising interventions.

中文翻译：

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古罗马庞贝城挖掘前沿的抗震稳定性

摘要 本文研究了意大利那不勒斯附近著名的联合国教科文组织世界遗产地庞贝古城在维苏威火山爆发期间被埋在 4-6 m 的火山灰和浮石下的挖掘前沿的地震稳定性问题。公元 79 年。注意力集中在 Insula dei Casti Amanti 上，这是近年来在市中心部分开挖的一块砖石建筑。在与地震构造背景兼容的露头岩石上记录的地面运动和意大利规范为生命安全极限状态标准指定的频谱被用于波传播分析。进行一维和二维地震响应分析以识别表面（地形）和山谷（形态）效应。这项研究允许以详细的方式量化开挖前沿的地震需求。基于经典伪静态方法的重新分析干预对考古遗址来说太具有侵入性。相反，替代的纽马克型方法，基于对潜在不稳定土体的永久旋转的评估，更适合于斜坡稳定干预的可持续定义。