预测尾矿饱和导水性的经验公式

IF 3 3区工程技术 Q2 ENGINEERING, GEOLOGICAL

Canadian Geotechnical Journal Pub Date : 2023-12-05 DOI:10.1139/cgj-2023-0339

Ji-ying Fan, R. K. Rowe

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引用次数: 0

摘要

本文收集了324个硬岩矿山尾矿饱和导水系数(k)的数据点。在此基础上，对现有经验方程对硬岩尾矿的适用性进行了评价。结果表明，d10的指数越大，测量值与预测值之间的相关性就越好。然后提出了Kozeny-Carman方程的经验修正版本，用于预测尾矿的饱和k，并与数据库进行了比较。当d10的指数大于2时，所提出的方程给出了最佳拟合。最后，讨论了粒子形状对k的影响。

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An empirical equation predicting the saturated hydraulic conductivity of tailings

324 data points on the saturated hydraulic conductivity (k) of various hard rock mine tailings are collected from previous publications. The applicability of existing empirical equations for hard rock mine tailings are assessed based on this database collected. Results show that with a greater exponent of d10, the correlation between the measured and predicted k is greatly improved. An empirically modified version of the Kozeny-Carman equation is then proposed for predicting the saturated k of tailings and compared with the database. The proposed equation gives the best fit with a varying exponent greater than 2 for d10. Finally, the impact of particle shape on k is discussed.

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来源期刊

Canadian Geotechnical Journal 地学-地球科学综合

CiteScore

7.20

自引率

5.60%

发文量

163

审稿时长

7.5 months

期刊介绍： The Canadian Geotechnical Journal features articles, notes, reviews, and discussions related to new developments in geotechnical and geoenvironmental engineering, and applied sciences. The topics of papers written by researchers and engineers/scientists active in industry include soil and rock mechanics, material properties and fundamental behaviour, site characterization, foundations, excavations, tunnels, dams and embankments, slopes, landslides, geological and rock engineering, ground improvement, hydrogeology and contaminant hydrogeology, geochemistry, waste management, geosynthetics, offshore engineering, ice, frozen ground and northern engineering, risk and reliability applications, and physical and numerical modelling. Contributions that have practical relevance are preferred, including case records. Purely theoretical contributions are not generally published unless they are on a topic of special interest (like unsaturated soil mechanics or cold regions geotechnics) or they have direct practical value.