COMPARATIVE STUDY OF METHODS FOR DETERMINAING COEFFICIENT OF SUBGRADE REACTION

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SADREKARIMI J.; AKBARZAD GHAMARI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Ferdowsi Civil Engineering Year:2009 | Volume:21 | Issue:1 Page(s): 45-61

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Title

COMPARATIVE STUDY OF METHODS FOR DETERMINAING COEFFICIENT OF SUBGRADE REACTION

Author(s)

SADREKARIMI J. | AKBARZAD GHAMARI M. | Issue Writer Certificate

Keywords

WINKLER HYPOTHESISQ3

THE SOFT SOIL MODELQ3

COEFFICIENT OF SUBGRADE REACTIONQ3

MODULUS OF ELASTICITYQ3

SETTLEMENTQ2

Abstract

WINKLER HYPOTHESIS is a well-known model in foundation engineering and pavement design. Today, despite development of advanced soil models, it is still the most common method in foundation engineering practice. However, the main problem with this method is evaluation of the COEFFICIENT OF SUBGRADE REACTION, ks, and since it depends on numerous parameters, its estimation is one of the most sophisticated and misunderstood concepts in geotechnical engineering. Various relations have been proposed by researchers since generation of this model. In this paper different methods proposed for determination of ks are compared and evaluated for their suitability and accuracy. The geotechnical parameters of a site on Tabriz Marl were selected as the base and SETTLEMENT analysis results with these methods are compared with that of obtained from analysis with advanced soil models using Safe and Plaxis software. It was disclosed that of Tabriz Marl, soft soil model is the best governing model and Vesic relation among the methods for determining of ks leads to negligible errors in comparison to soft soil model. Also, to get more accurate results from these methods, it is proposed to use mean elasticity modulus which takes into consideration the effect of geometric and mechanical properties of sub-layers.

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APA: Copy

SADREKARIMI, J., & AKBARZAD GHAMARI, M.. (2009). COMPARATIVE STUDY OF METHODS FOR DETERMINAING COEFFICIENT OF SUBGRADE REACTION. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), 21(1), 45-61. SID. https://sid.ir/paper/195968/en

Vancouver: Copy

SADREKARIMI J., AKBARZAD GHAMARI M.. COMPARATIVE STUDY OF METHODS FOR DETERMINAING COEFFICIENT OF SUBGRADE REACTION. JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2009;21(1):45-61. Available from: https://sid.ir/paper/195968/en

IEEE: Copy

J. SADREKARIMI, and M. AKBARZAD GHAMARI, “COMPARATIVE STUDY OF METHODS FOR DETERMINAING COEFFICIENT OF SUBGRADE REACTION,” JOURNAL OF CIVIL ENGINEERING (JOURNAL OF SCHOOL OF ENGINEERING), vol. 21, no. 1, pp. 45–61, 2009, [Online]. Available: https://sid.ir/paper/195968/en

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