在不同的整合条件下对尾矿的动态特征进行实验研究
Changbo Du1, Xinqi Jiang2, Laigui Wang3
1College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China. duchangbo2839@163.com.
Scientific reports
|January 6, 2024
概括
这项研究揭示了尾矿沙的动态特性,如剪切应力和孔隙压力,在不同的巩固下如何变化. 了解这些特征对于评估尾矿水的地震液化风险至关重要.
科学领域:
- 地质技术工程 地质技术工程
- 地震工程的工程是地震工程.
背景情况:
- 尾矿池的动态稳定性受到尾矿沙的动态特征的显著影响.
- 了解这些特征对于防止灾难性故障至关重要,特别是在地震区域.
研究的目的:
- 在各种整合条件下研究尾矿砂的动态特性.
- 分析干密度,巩固比率和限制压力对尾矿沙子行为的影响.
主要方法:
- 在尾矿沙样本上进行了统一的未排水三轴测试.
- 分析的参数包括动态剪切应力,液化应力比率,动态强度指数,动态孔隙水压,动态模量和阻尼比率.
主要成果:
- 动态切割应力与故障振动数量呈现出线性关系.
- 液化应力比率随着整合比率的增加而增加,遵循二次多项式.
- 动态孔隙压力增长是使用指数函数建模的,显示有利的适配.
- 动态剪切模量随着动态剪切应变的增加而降低,而减缓比则增加.
结论:
- 该研究为高强度地震地区的尾矿水的地震液化分析提供了理论参考.
- 尾带砂的动态特性高度依赖于巩固条件和振动历史.
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