To ensure environmental and public safety, critical facilities require rigorous seismic hazard analysis to define seismic input for their design. We consider the case of the Trans Adriatic Pipeline (TAP), which is a pipeline that transports natural gas from the Caspian Sea to southern Italy, crossing active faults and areas characterized by high seismicity levels. For this pipeline, we develop a Probabilistic Seismic Hazard Assessment (PSHA) for the broader area, and, for the selected critical sites, we perform deterministic seismic hazard assessment (DSHA), by calculating shaking scenarios that account for the physics of the source, propagation, and site effects. This paper presents a DSHA for a compressor station located at Fier, along the Albanian coastal region. Considering the location of the most hazardous faults in the study site, revealed by the PSHA disaggregation, we model the ground motion for two different scenarios to simulate the worst-case scenario for this compressor station. We compute broadband waveforms for receivers on soft soils by applying specific transfer functions estimated from the available geotechnical data for the Fier area. The simulations reproduce the variability observed in the ground motion recorded in the near-earthquake source. The vertical ground motion is strong for receivers placed above the rupture areas and should not be ignored in seismic designs; furthermore, our vertical simulations reproduce the displacement and the static offset of the ground motion highlighted in recent studies. This observation confirms the importance of the DSHA analysis in defining the expected pipeline damage functions and permanent soil deformations.

为了确保环境和公共安全，关键设施要求进行严格的地震危害分析，以定义其设计的地震输入。我们考虑跨亚得里亚海管道（TAP）的情况，该管道是将天然气从里海输送到意大利南部的管道，跨过活动断层和高地震活动性地区。在此管道中，我们针对更广泛的区域开发了概率地震危险性评估（PSHA），对于选定的关键地点，我们通过计算考虑了震源物理特性的摇晃情景来执行确定性的地震危险性评估（DSHA），传播和站点效应。本文介绍了位于阿尔巴尼亚沿海地区Fier的一个压缩机站的DSHA。考虑到研究地点中最危险的故障的位置，根据PSHA分解显示，我们为两种不同情况的地面运动建模，以模拟此压缩机站的最坏情况。我们通过应用根据Fier地区可用岩土数据估算的特定传递函数，为软土上的接收器计算宽带波形。模拟重现了近震源中记录的地面运动中观察到的变化。对于放置在破裂区域上方的接收器，垂直地面运动很强，在地震设计中不应忽略；此外，我们的垂直模拟重现了最近研究中突出的地面运动的位移和静态偏移。这一发现证实了DSHA分析在定义预期的管道破坏功能和永久性土壤变形方面的重要性。