Experimental Analysis of Shear Strength of Undisturbed Soil in Leucaena Forest in Jiangjia Ravine, Yunnan, China

Five leucaena trees of similar age were chosen in Jiangjia Ravine of Dongchuan,Yunnan Province,China,near which the soil samples were collected by digging profiles 2m in depth and 1m in width.In each section,soil samples at different depths were taken for direct shear experiments to determine the ro...

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Veröffentlicht in:Journal of mountain science 2010-12, Vol.7 (4), p.386-395
Hauptverfasser: Jiao, Zhen, Wang, Daojie, Xie, Hong, Zhang, Jinshan, Guo, Linghui
Format: Artikel
Sprache:eng
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Zusammenfassung:Five leucaena trees of similar age were chosen in Jiangjia Ravine of Dongchuan,Yunnan Province,China,near which the soil samples were collected by digging profiles 2m in depth and 1m in width.In each section,soil samples at different depths were taken for direct shear experiments to determine the root amount and mechanical composition.It is found that the cohesion and internal friction angle of the undisturbed soil are related to the root amount,depth,clay content and breccias content.Cohesion correlates negatively with root content,a finding that differs from that of other researchers.In addition,internal friction angle correlates positively with all these factors.
ISSN:1672-6316
1993-0321
1008-2786
DOI:10.1007/s11629-010-2053-8