Yamamoto and Kim (2004) BEARING CAPACITY OF SPREAD FOUNDATIONS ON SAND OVERLYING CLAY

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BEARING CAPACITY OF SPREAD FOUNDATIONS ON SAND OVERLYING CLAY

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CONTRIBUTORS:

	Author:	Yamamoto, K.
	Author:	Kim, D.
	Associate Editor:	Teknomo, Kardi (Ateneo de Manila University)
	Associate Editor:	Don, Nguyen Cao (Institute of Lowland Technology, Saga University)
	Editor:	Araki, Hiroyuki
	Editor:	van de Ven, Frans H.M.
	Editor:	Budkowska, Bozena B.

JOURNAL:

Lowland Technology International, 6(2), 33 - 45.

YEAR:

2004

PUB TYPE:

Journal Article

SUBJECT(S):

lowland technology

DISCIPLINE:

Engineering and Applied Sciences

HTTP:

http://www.ilt.saga-u.ac.jp/ialt/lti/jnls/lti_volume6.html#p33_45

LANGUAGE:

English

PUB ID:

103-411-246 (Last edited on 2005/02/15 00:41:21 US/Mountain)

SPONSOR(S):

ABSTRACT:
The ultimate bearing capacity of spread foundations on a sand layer overlying clay has been extensively investigated for practical use. First, a review of previous studies on bearing capacity problems for this type of foundation has been performed and a discussion is presented concerning the application to practice. Second, the kinematic approach of limit analysis has been used to calculate the upper bound of the true ultimate bearing capacity. The kinematic solutions are upper bounds and their accuracy depends primarily on the nature of the assumed failure mechanism. This approach makes it convenient to create design charts, and it is possible to trace the influence of parameters. Third, the commercial finite element program ABAQUS was applied to obtain the ultimate bearing capacity based on the elasto-plastic theory. Although FE analysis has still not gained wide acceptance in foundation practice, FE analysis has the great advantage in which the equations of equilibrium and compatibility are solved together, compared with limit analysis. Finally, results obtained from the kinematic approach and the program ABAQUS were compared with those from the existing limit equilibrium equations proposed by Yamaguchi, Meyerhof and Okamura et al. for confirming the validity of their application to practice.

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