摘要
水土特征曲线是非饱和土研究的重点,细粒尾砂饱和度增加会导致基质吸力下降,极易引发尾矿库溃坝等安全事故。文中以湖南某细粒尾矿库的尾砂为研究对象,开展水土特征曲线试验研究,得到了基质吸力随其含水率的上升而下降的规律,研究结论对尾矿库的稳定具有参考指导意义。
The research focus of water-soil characteristic curve in unsaturated soil. The increase of fine tailings saturation will lead to the decrease of matrix suction, which can easily lead to safety accidents such as tailings dam break. In this paper, the fine-grained tailings reservoir in Hunan is taken as the research object, and the water-soil characteristic curve test is carried out. The law that the matrix suction decreases with the increase of water content is obtained. The research conclusion has reference significance for the stability evaluation of tailings reservoir.
作者
罗振林
Luo Zhenlin(China Renewable Energy Engineering Institute,Beijing 100120)
出处
《江西建材》
2022年第10期49-51,共3页
Jiangxi Building Materials
关键词
细粒尾砂
毛细特征
水土特征曲线
基质吸力
Fine-grained tailings
Capillary characteristics
Soil and water characteristic curve
The matrix suction