VARIATION OF SHEAR RESISTANCE PARAMETERS IN FINE GRAIN SOILS DUE TO WILLOW ROOTS DENSITY

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DAVOUDI MOHAMMAD HADI

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ISSN: 2588-4824

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Paper Information

Journal: Journal of Range and Watershed Managment Year:2009 | Volume:62 | Issue:2 Page(s): 231-246

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Information Journal Paper

Title

VARIATION OF SHEAR RESISTANCE PARAMETERS IN FINE GRAIN SOILS DUE TO WILLOW ROOTS DENSITY

Author(s)

DAVOUDI MOHAMMAD HADI | Issue Writer Certificate

Keywords

WILLOWQ3

SHEAR STRENGTHQ2

COHESIONQ3

INTERNAL FRICTION ANGLEQ3

LEAN CLAYQ3

ROOT DENSITYQ3

NATURAL SOIL SLOPEQ3

STABILIZATIONQ3

ENVIRONMENTQ3

Abstract

Stabilization of river terraces and NATURAL SOIL SLOPEs in rangelands by means of tree roots as a reinforcement agent is an ENVIRONMENTal adopted method which needs to be developed. In this research a series of tests was carried out on soil blocks containing WILLOW roots and without roots using a large scale in situ direct shear test apparatus. The results were analyzed based on direct shear theory to calculate the COHESION and INTERNAL FRICTION ANGLE of rooted and non-rooted soil. The results reveal that in spite of a slight decrease of 8% in the INTERNAL FRICTION ANGLE, the appearance COHESION of LEAN CLAY soils increase significantly up to 130%. The results of this research are presented in forms of linear and logarithmic relations between increased SHEAR STRENGTH and ROOT DENSITY at different depths of soil.

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APA: Copy

DAVOUDI, MOHAMMAD HADI. (2009). VARIATION OF SHEAR RESISTANCE PARAMETERS IN FINE GRAIN SOILS DUE TO WILLOW ROOTS DENSITY. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 62(2), 231-246. SID. https://sid.ir/paper/162703/en

Vancouver: Copy

DAVOUDI MOHAMMAD HADI. VARIATION OF SHEAR RESISTANCE PARAMETERS IN FINE GRAIN SOILS DUE TO WILLOW ROOTS DENSITY. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2009;62(2):231-246. Available from: https://sid.ir/paper/162703/en

IEEE: Copy

MOHAMMAD HADI DAVOUDI, “VARIATION OF SHEAR RESISTANCE PARAMETERS IN FINE GRAIN SOILS DUE TO WILLOW ROOTS DENSITY,” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 62, no. 2, pp. 231–246, 2009, [Online]. Available: https://sid.ir/paper/162703/en

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