| Title |
A Study on Soil Improvement Agent for Rainfall-Induced Erosion on the Soil Slope |
| Authors |
강대흥(Kang, Dae-Heung) ; 김영석(Kim, Young-Suk) ; 황인택(Hwang, In-Taek) ; 김재홍(Kim, Jae-Hong) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.3.0237 |
| Keywords |
얕은파괴; 보강토; 침식; 세굴; 사면안정 Shallow failure; Reinforced soil; Erosion; Scour; Slope stability |
| Abstract |
With climate change, debris flow has been increasing due to the collapse and erosion of shallow slopes caused by extreme rainfall. It is preferred to an economical and eco-friendly method rather than reinforcement of soil slopes with the earth anchor or nailing method.
In this study, a soil improvement agent was developed by utilizing insitu soil, leaf mold, and used harbal medicine to help sufficient vegetation. In addition, to prevent surface erosion, shear strength of the soil was increased by using micro cement and hemihydrate gypsum as additives. The optimum mix ratio of the mixture is determined by increasing the shear strength by checking the erosion progress of the ground surface layer due to rainfall through an laboratory test. The safety factor of soil slope has been improved on the slope surface reinforced by the improvement agent, and the strength of erosion has been increased, making it efficient to cope with heavy rain during wet season. |