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首页> 外文会议>Eighth International Conference on Tailings and Mine Waste '01, Jan 16-19, 2001, Fort Collins, Colorado, USA >Closure of the Atlas Uranium Tailings Impoundment
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Closure of the Atlas Uranium Tailings Impoundment

机译：关闭阿特拉斯铀矿尾矿库

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摘要

The Atlas Uranium Tailings Facility is a large uranium mill tailings impoundment located on the banks of the Colorado River near Moab, Utah. The tailings facility was operated from the 1950's to the mid-1980's, during which approximately 10.5 million tons of tailings were deposited. The facility is currently being closed under a NRC-approved plan. Closure of the site is being conducted under the supervision of PricewaterhouseCoopers (PWC), who is the trustee. SRK Consulting (SRK) was selected by PWC to provide geotechnical, hydrogeologic and geochemi-cal consulting services related to characterization and closure planning for the tailings facility. This paper describes the recent work at the site, including a detailed characterization of the tailings, which was performed using a combination of piezocone and geotechnical drilling techniques. Data from this characterization were used to evaluate various methods of dewatering and speeding consolidation of the tailings. The methods considered included vertical wicks, vacuum-assisted wicks, vibro-consolidation, and a combination of air sparging and vacuum wick drainage. Data will be provided from the various field test programs, comparing modeling and pilot-scale tests.
机译：阿特拉斯铀矿尾矿库是位于犹他州摩押附近的科罗拉多河两岸的大型铀厂尾矿库。尾矿设施从1950年代到1980年代中期投入运营，在此期间沉积了约1,050万吨的尾矿。该设施目前正在按照NRC批准的计划关闭。该网站的关闭是在受托人普华永道（PWC）的监督下进行的。普华永道（PWC）选择了SRK Consulting（SRK），以提供与尾矿设施的表征和封闭计划有关的岩土，水文地质和地球化学咨询服务。本文介绍了该现场的最新工作，包括尾矿的详细表征，这些尾矿是结合使用压电锥和岩土钻探技术进行的。来自该表征的数据被用于评估脱水和加快尾矿固结的各种方法。所考虑的方法包括立式芯吸，真空辅助芯吸，振动固结以及空气喷射和真空芯吸排水的组合。数据将从各种现场测试程序中提供，并比较建模和中试规模的测试。

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