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首页> 外文期刊>Natural hazards and earth system sciences >Prediction and evaluation of nonlinear site response with potentially liquefiable layers in the area of Nafplion (Peloponnesus, Greece) for a repeat of historical earthquakes
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Prediction and evaluation of nonlinear site response with potentially liquefiable layers in the area of Nafplion (Peloponnesus, Greece) for a repeat of historical earthquakes

机译：纳夫普利翁（希腊伯罗奔尼撒）地区具有潜在可液化层的非线性场地响应的预测和评估，以重复历史地震

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摘要

We examine the possible non-linear behaviour of potentially liquefiable layers at selected sites located within the expansion area of the town of Nafplion, East Peloponnese, Greece. Input motion is computed for three scenario earthquakes, selected on the basis of historical seismicity data, using a stochastic strong ground motion simulation technique, which takes into account the finite dimensions of the earthquake sources. Site-specific ground acceleration synthetics and soil profiles are then used to evaluate the liquefaction potential at the sites of interest. The activation scenario of the Iria fault, which is the closest one to Nafplion (Combining double low line6.4), is found to be the most hazardous in terms of liquefaction initiation. In this scenario almost all the examined sites exhibit liquefaction features at depths of 6-12 m. For scenario earthquakes at two more distant seismic sources (Epidaurus fault - M6.3; Xylokastro fault g-6.7) strong ground motion amplification phenomena by the shallow soft soil layer are expected to be observed.
机译：我们检查了位于希腊东伯罗奔尼撒的纳夫普利翁镇扩建区域内选定地点的潜在液化层的非线性行为。使用随机强地震动模拟技术，在考虑历史地震数据的基础上选择的三种情景地震中，计算输入运动，该技术考虑了震源的有限尺寸。然后使用特定地点的地面加速度合成材料和土壤剖面来评估感兴趣地点的液化潜力。在液化引发方面，最接近Nafplion的Iria断层的活化场景（结合双低线6.4）被认为是最危险的。在这种情况下，几乎所有检查过的位置在6-12 m的深度处都表现出液化特征。对于在另外两个遥远地震源（Epidaurus断层-M6.3; Xylokastro断层g-6.7）处的情景地震，预计将观察到浅层软土层的强烈地震动放大现象。

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