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首页> 外文期刊>Journal of geotechnical and geoenvironmental engineering >Tailings Subaerial and Subaqueous Deposition and Beach Slope Modeling
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Tailings Subaerial and Subaqueous Deposition and Beach Slope Modeling

机译：尾矿地下和水下沉积与海滩坡度建模

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摘要

The tailings beach slope is a fundamental parameter for the design and operation of tailings storage facilities because it affects the tailings storage capacity, pond levels, and phreatic surfaces within the containment structures. Understanding tailings beach development is particularly important for thickened and paste tailings facilities, where the tailings can form a self-stacking structure. This paper presents a theoretical tailings deposition model that can describe the formation of tailings beach slopes in both subaerial and subaqueous deposition environments. The depositional behavior and deposition mechanisms are investigated from both geotechnical and hydraulic engineering perspectives. The model is developed to capture deposition mechanisms based on the principles of soil mechanics and fluid mechanics. The governing differential equations can be solved using a numerical technique, and the solution scheme can readily be implemented in computer languages. Case studies for subaerial deposition demonstrate that the modeling results are in agreement with laboratory flume testing and field measurements. The proposed model considers geotechnical and rheological properties of tailings, water pressures, operation parameters, and site topographic conditions. A sensitivity study was carried out to provide insight into the effects of influencing factors on the beach slope.
机译：尾矿滩坡度是尾矿储存设施设计和运行的基本参数，因为它会影响尾矿储存能力，池塘水位和围护结构内的潜水面。了解尾矿滩的发展对于增稠和糊化的尾矿设施特别重要，因为在这些设施中，尾矿可以形成自堆叠结构。本文提出了一种理论上的尾矿沉积模型，该模型可以描述在地下和水下沉积环境中尾矿滩坡的形成。从岩土工程和水利工程的角度研究了沉积行为和沉积机理。该模型是根据土壤力学和流体力学原理来捕获沉积机理而开发的。控制微分方程可以使用数值技术求解，并且该解决方案可以轻松地用计算机语言实现。地下沉积的案例研究表明，建模结果与实验室水槽测试和现场测量结果一致。提出的模型考虑了尾矿的岩土和流变特性，水压，运行参数和场地地形条件。进行了敏感性研究，以了解影响因素对海滩坡度的影响。

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