Reinforcing Effect of Herbaceous Root System on Soil

Authors Jiang Bifeng; Wang Haibiao; Li Shumin

Journal Journal of North-East Forestry University , 2017,7:45

Abstract Through directly digging the roots of Axonopus compressus (Sw.) Beauv.,Eragrostis curvula and Eleusine indica (L.) Gaertn from the wild,which would be mixed with red clay in Hainan area and made into remodeling reinforced soil complex, we analyzed the reinforcing effect of different species with different water ratio and different root ratio. The plant roots can significantly improve the soil shear strength,and the soil shear strength is larger when root ratio is increasing. The shear strength of the remolded reinforced soil increases with the decreasing of the water ratio. The cohesive force value of the remolded reinforced soil is larger when root ratio is increasing,and decreasing when the water ratio is increasing. The internal friction angle of remolded reinforced soil is improved in certain extent,but the changing is small. The reinforcing effect of remolded soil with Eragrostis curvula is better.

Species covered 牛筋草 Eleusine indica