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| 尾矿库植物修复区土壤分维特征及其与物理力学性质的相关性 |
| Fractal Characteristics of Soil in Plant Remediation Area of Tailings Pond and Their Correlation with Physical and Mechanical Properties |
| 投稿时间：2023-10-14 修订日期：2023-11-21 |
| DOI： |
| 中文关键词: 尾矿库植物修复区土壤；分形维数；物理力学参数；相关性 |
| 英文关键词: tailings pond Phytoremediation area soil；fractal dimension；physical and mechanical parameters；correlation |
| 基金项目:辽宁省科技计划项目 |
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| 中文摘要: |
| 对尾矿库植物修复区土壤的微观结构和物理力学性质进行检测，获取并分析土壤分维特征及其与物理力学性质的相关性。选取现场四个不同台阶的土壤作为研究对象，通过SEM获取土体微观结构，土体微观结构采用图像处理软件进行定量分析，对土壤孔隙比、渗透系数、密度、内聚力、内摩擦角等物理力学参数进行检测，据此分析尾矿库植物修复区土壤分形维数与其物理力学参数之间的相关性。结果表明：土壤分形维数随着种植年限的增加而增加。土壤分形维数与土壤天然密度呈正相关；随着土壤分形维数的增加，对天然密度影响较显著；与渗透系数呈不显著相关；与孔隙比、内摩擦角和内聚力成显著负相关。研究结果可为尾矿库植物修复提供客观依据。 |
| 英文摘要: |
| The microstructure and physical and mechanical properties of soil in the Phytoremediation area of tailings pond were detected, and the fractal dimension characteristics of soil and their correlation with physical and mechanical properties were obtained and analyzed. The soil of four different benches on the site was selected as the research object, and the soil microstructure was obtained by SEM. The image processing software was used to conduct quantitative analysis of the soil microstructure, and the physical and mechanical parameters such as soil void ratio, permeability coefficient, density, cohesion, internal friction angle were detected. Based on this, the correlation between the Fractal dimension of tailings pond soil and its physical and mechanical parameters was analyzed. The results showed that the Fractal dimension of soil increased with the increase of planting years. The Fractal dimension of soil is positively correlated with the natural density of soil; With the increase of soil Fractal dimension, the natural density was significantly affected; There is no significant correlation with permeability coefficient; There is a significant negative correlation with porosity ratio, internal friction angle, and cohesion. The research results can provide objective basis for Phytoremediation of tailings pond |
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