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首页> 外文期刊>International journal of geotechnical engineering >Self-weight consolidation of slurried deposition: tests and interpretation
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Self-weight consolidation of slurried deposition: tests and interpretation

机译：浆状沉积物的自重固结：测试和解释

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摘要

Slurry deposition is a common practice in several domains, ranging from the surface disposal of mine tailings to underground backfilling. The storage of dredged materials and fly ash is another important issue involving slurry self-weight consolidation. To adequately design the infrastructures and facilities, it is important to have a good knowledge of the evolution of the physical and hydraulic properties of such slurried depositions. Over the years, several methods of measurement have been proposed, including standard consolidation (oedometer) tests and seepage induced consolidation tests. For most cases, these conventional methods are not valid due to the modification or disturbance they cause to the internal mechanical and/or hydraulic system of the slurried deposition during the application of external hydraulic or mechanical solicitations. In this note, a method based on column tests is proposed. It is shown that the method is simple and easy to execute, with few requirements in terms of instrumentation. Results show that the proposed method is efficient in evaluating the evolution of the physical and hydraulic properties of slurried deposition on an impervious base. Equations for describing the evolution of physical and hydraulic properties are also proposed, and correspond very well to the experimental results.
机译：从矿山尾矿的表面处理到地下回填，泥浆沉积是多个领域的常规做法。疏materials物料和粉煤灰的储存是涉及浆料自重固结的另一个重要问题。为了适当地设计基础设施和设施，重要的是要充分了解此类浆状沉积物的物理和水力特性的演变。多年来，已经提出了几种测量方法，包括标准固结（里程表）测试和渗漏诱导固结测试。在大多数情况下，这些常规方法由于在施加外部液压或机械拉拔过程中对浆状沉积物的内部机械和/或液压系统造成的修改或干扰而无效。在本说明中，提出了一种基于列测试的方法。结果表明，该方法简单易行，对仪器要求不高。结果表明，该方法可有效地评估不透水基层上淤泥的物理和水力性质的演变。还提出了用于描述物理和水力特性演变的方程，这些方程与实验结果非常吻合。

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  • 作者

    L. Li; I. C. Alvarez; J. D. Aubertin;

  • 作者单位

    Laboratory of Geotechnical and Geoenyironmental Engineering (LG2),Department of Construction Engineering, Ecole de technologie superieure,1100, rue Notre-Dame Ouest, Montreal, Quebec H3C 1K3, Canada;

    Laboratory of Geotechnical and Geoenyironmental Engineering (LG2),Department of Construction Engineering, Ecole de technologie superieure,1100, rue Notre-Dame Ouest, Montreal, Quebec H3C 1K3, Canada;

    Department of Construction Engineering, Ecole de technologie superieure,1100, rue Notre-Dame Ouest, Montreal, Quebec H3C 1K3, Canada;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Laboratory tests; Hydraulic properties; Self-weight consolidation; Sedimentation; Slurried deposition;

    机译：实验室测试;液压性能;自重合并;沉降;浆状沉积;

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