Similarity Test of Rainfall Infiltration Model for Tailings Dam Slope

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xin, Baoquan^1^2 ; Wan, Lu^1^2 ; Dang, Wenyi^1^2 ; Lu, Wei^1^2 ; Zhang, Xiangjian^1^2

SINOPEC Qingdao Research Institute of Safety Engineering, Qingdao, Shandong

266101, China^1

State Key Laboratory of Safety and Control for Chemicals, Qingdao, Shandong

266071, China^2

关键词: Dynamic characteristics;    Infiltration process;    Infiltration rate;    Rainfall infiltration;    Rainfall intensity;    Rainfall simulations;    Saturation point;    Water accumulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022140/pdf
DOI  :  10.1088/1755-1315/300/2/022140

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to explore the rainfall infiltration mechanism of tailings dam and its influence on dam properties, experiments were carried out by self-made tailings dam sand trough model and rainfall simulation system. The dynamic characteristics of infiltration rate with different rainfall intensity were obtained. The results show that in the process of rainfall infiltration, saturation is the first place under the dam. But the final water content remained stable and the difference was small. For the same rainfall intensity, the rainfall infiltration process of tailings dam can be divided into three stages. The water accumulation point is 0.59 mm/min and the saturation point is 0.23 mm/min. Different rainfall intensities have the same trend in the infiltration process. Finally, it tends to saturate permeability coefficient Ks. The infiltration rates of the three rainfall intensities decreased by 81%, 60% and 21% respectively at the two boundary points.