Study on Hippophae rhamnoides Linn. roots in improving the shear characteristics of soil
In this paper, the author investigates roots soil mechanics mechanism and influencing factors of a typical soil reinforcing plant-Hippophae rhamnoides Linn. in the area that has been destroyed by wind and water. This investigation has been done from two aspects: shear strength of root-soil composite and friction characteristic of root-soil interface. The results show that when the root diameter is less than 1.5m, both the shear strength and cohesion force of Hippophae rhamnoides Linn.in root-soil composite are stronger than those of in pure soil, and the friction force of root-soil interface is more intensive than soil-soil interface. Shear strength of root-soil composite is enhanced by its cohesion force and root-soil composites friction. At different moisture conditions, both the shear strength and cohesion force of root-soil composite show an increase first, then a decrease, and both of them reach the maximum at 14.8% water content. The friction coefficient of root-soil interface reduces as the moisture increases; whereas, shear strength and cohesion force of root-soil composite and friction coefficient of root-soil interface increase as dry density increases.
Yong-liang Zhang Jing Liu Lin-he Wang Xi-jun Yao Xin Zhang Li Yao
Affiliation College of Ecology and Environmental Science Inner Mongolia Agricultural University Huhh Affiliation Institute of Water Resources of Pastoral Area Ministry of Water Resource Huhhot 010019,
国际会议
成都
英文
1-5
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）