La Parrilla is a tungsten and tin mine located in western Spain. The tailings facility has a total capacity for 3 Mm³ and will be executed in four different phases. The main constraint for the design and construction of the tailings dam is that it has been constructed over an existing one from the 1980s. The construction activities involved removal and substitution of the old tailings from the southern portion of the facility, ground improvement with gravel columns over an area of about 10,000 m², and construction of the dyke’s dam. This article describes the main design and construction aspects, including monitoring, until the dam’s completion in June 2019.

中文翻译：

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La Parrilla矿的古代尾矿设施上的尾矿坝设计与施工

La Parrilla是位于西班牙西部的钨锡矿。尾矿设施的总容量为3 Mm ³，将分四个阶段进行。尾矿坝设计和施工的主要限制是它是在1980年代现有的尾矿坝上建造的。建设活动包括从设施的南部部分清除和替换旧尾矿，在约10,000 m ²的面积上用碎石柱进行地面改良以及建造堤坝。本文介绍了主要的设计和施工方面，包括监测，直到大坝于2019年6月完成为止。