The Study on Erosion Mechanism of Loess Slope under Rainfall Condition based on Seep Model

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhao, Xiaoguang^1 ; Feng, Qiuyan^1 ; Sun, Yanjie^1

School of Geology and Environment, Xian Uuniversity of Science and Technology, Xian, China^1

关键词: Degree of erosion;    Erosion mechanisms;    High water pressure;    Monitoring locations;    Monitoring sites;    Pore-water pressures;    Rainfall condition;    Simulated rainfall;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022009/pdf
DOI  :  10.1088/1755-1315/170/2/022009

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, simulated rainfall infiltration phenomenon on the loess slope under rainfall condition based on seep/w model and studied the mechanism of rainfall on loess slope erosion from microscopic perspective by analyzing the distribution of pore water pressure in different monitoring locations at different times during rainfall. The results showed that under the condition of rainfall, the slope shoulder that is nearest to the slope top is always in high water pressure and is the first place where runoff erosion begins; and with the increase of the slope gradient, water pressure of each monitoring site gradually increased and the degree of erosion of slope surface erosion is more serious.