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首页> 外文期刊>Bulletin of Earthquake Engineering >Analysis of the liquefaction phenomena in the village of Vittorito (L’Aquila)
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Analysis of the liquefaction phenomena in the village of Vittorito (L’Aquila)

机译：维托里托（L'Aquila）村的液化现象分析

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摘要

This paper describes a case-history of liquefaction occurred near the village of Vittorito after the April 6, 2009 L’Aquila earthquake (moment magnitude Mw = 6.3), approximately 45 km far from the epicentre. In the document, first, an estimation of the seismic motion in the area has been made. Thereafter, the performed geotechnical investigation is described, followed by the application of some fast assessment criteria for the occurrence of liquefaction, recently proposed by the new Italian Building Code. A careful assessment of all the parameters involved in conventional Seed and Idriss (1971) liquefaction analyses is considered. The cyclic resistance ratio CRR is evaluated by cone penetration tests CPT and by in situ seismic dilatometer tests SMDT; in the latter case CRR is evaluated by different empirical correlations with shear wave velocity Vs and horizontal stress index KD. Analytical data confirmed the observed occurrence of the liquefaction in Vittorito, even if the acceleration field in the area, produced by the L’Aquila earthquake, was very low.
机译：本文介绍了在2009年4月6日拉奎拉地震（矩震级M w = 6.3）发生在距离市中心约45公里的Vittorito村庄附近发生液化的案例。在该文献中，首先，已经对该区域中的地震运动进行了估计。此后，描述了进行的岩土工程勘测，然后应用了新的《意大利建筑规范》最近提出的关于液化发生的一些快速评估标准。考虑对常规的Seed and Idriss（1971）液化分析中涉及的所有参数进行仔细评估。循环阻力比CRR通过圆锥穿透试验CPT和原位地震膨胀计试验SMDT进行评估；在后一种情况下，CRR通过不同的经验相关性与剪切波速度V s 和水平应力指数K D 进行评估。分析数据证实，即使拉奎拉地震在该地区产生的加速度很低，在维托里托也观察到液化的发生。

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