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http://dx.doi.org/10.5762/KAIS.2011.12.9.4205

Numerical Study on Ultimate Lateral Resistance of Roots of Vegetation  

Lee, Seung-Hyun (Dept. of Civil Engineering, Sunmoon University)
Kwon, Oh-Soon (Korea Ocean Research and Development Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.9, 2011 , pp. 4205-4209 More about this Journal
Abstract
Numerical analysis were executed in order to investigate ultimate lateral resistance of roots of vegetation. Ultimate lateral resistances of roots obtained from the assumed values of cohesions were distributed between the values of the two kinds of the existing studies. The ultimate lateral resistance values were more close to those by the bearing capacity solution than those by the cavity expansion theory. Coefficient of bearing capacity determined by the numerical analysis was 33. Yielding displacements obtained from the numerical analysis were 0.08~0.29 times of the diameter of the root and those were overall close to the value of the existing study which was undertaken for the pile diameter of 1 cm.
Keywords
Numerical analysis; Roots of vegetation; Ultimate lateral resistance; Yielding displacement;
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  • Reference
1 Lizzi, F., "The 'Pali Racice'(Root Piles)-A state of the art Report", Symposium on Recent Developments in Ground Improvement Techniques, Bankok, Thailand, 1982.
2 Prakash, S., and Saran, D., "Behavior of laterally loaded piles in cohesive soil", Proc. 3rd Asian Regional Conf. on Soil Mech. and Found. Engrg., 1, 235-238, 1967.
3 Randolph, M.F., Houlsby, G.T., "The limiting pressure on a circular pile loaded laterally in cohesive soil", Geotechnique, England, 34, pp. 613-623, 1984.   DOI
4 Reese, L.C., Welch, R.C., "Lateral loading of deep foundation in stiff clay", J. Geotech. Engrg. Div., ASCE, 101(GT7), pp. 633-650, 1975.
5 Reese, L.C., "Laterally loaded piles: Program documentation", J. Geotech. Engrg. Div., ASCE, 103(GT4), pp. 287-385, 1977.
6 Scott, R.F., Foundation analysis, Prentice-Hall, Englewood Cliffs, N.J., 1981.
7 Vesic, A.S., "Expansion of cavities in infinite soil mass", J. Soil Mech. and Found. Engrg. Div., ASCE, 98(SM3), pp. 265-290, 1972.
8 Waldron, L.J., "The Shear Resistance of root-permeated homogeneous and stratified soil", J. Soil Science Soc. Amer., 41, pp. 843-849, 1977.   DOI
9 Wu, T.H., McKinnell, W.P., III, and Swanston, D.N., "Strength of tree roots and landslides on Prince of Wales Island, Alaska", Can. Geotech. J., 16, pp. 19-33, 1979.   DOI
10 Wu, T.H., Ronald, M.M., Ronald, T.E. and Philip, E.B., "Study of Soil-Root Interaction", J. of Geotechnical Engr., Vol. 114, No. 12, ASCE, pp. 1351-1375, 1988.   DOI
11 ZSOIL user manual, Zace services Ltd., Laussane, Switzerland, 2001.