The seismic failure of an old quay wall, built in 1932, located in the Port of Iquique during the Mw8.2, 1 April, 2014, Pisagua, Chile earthquake is studied. A geotechnical exploration, including boreholes, cone penetration test (CPT) soundings, and surface-based geophysical techniques were performed to characterize the materials forming the pier. The data and field observations were analyzed and used to develop a geotechnical finite element (FE) model of two cross-sections, to define the most likely mechanism to explain the failure. The FE results are compared against the deformations measured in a number of cross-sections of the pier, suggesting that the failure can be explained by a combined effect of the dynamic increase in lateral earth pressures and the base rotation of the confining walls due to the lack of proper compaction of the rockfill prism below the confining walls.

中文翻译：

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2014 年智利比萨瓜 Mw8.2 地震期间旧码头的地震破坏

研究了 2014 年 4 月 1 日智利比萨瓜地震期间位于伊基克港的一座建于 1932 年的旧码头墙的地震破坏。进行了岩土工程勘探，包括钻孔、锥入度测试 (CPT) 测深和基于地表的地球物理技术，以表征形成桥墩的材料。对数据和现场观察进行分析并用于开发两个横截面的岩土有限元 (FE) 模型，以定义解释故障的最可能机制。将有限元结果与在桥墩的多个横截面中测量的变形进行比较，