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Effect of stone column yield on settlement of rigid foundations in stabilized clay
Author(s) -
Balaam N. P.,
Booker J. R.
Publication year - 1985
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610090404
Subject(s) - settlement (finance) , parametric statistics , foundation (evidence) , yield (engineering) , finite element method , geotechnical engineering , column (typography) , reduction (mathematics) , structural engineering , engineering , mathematics , geology , computer science , materials science , geometry , statistics , connection (principal bundle) , archaeology , composite material , geography , world wide web , payment
In this paper the settlement of a rigid foundation supported by a layer of clay which has been stabilized with stone columns is considered. The results of an analytic solution for the settlement, assuming no yield occurs in the clay or columns, have been presented in a previous publication. This solution is now used to develop an interaction analysis which takes account of yielding within the stone columns. This interaction analysis is based on a number of plausible assumptions regarding the behaviour of the clay and columns. In order to check the validity of these assumptions elasto‐plastic finite element analyses have been performed and the agreement between the two methods is very good. However, the computational effort required for the finite element analyses is many orders of magnitude greater than that for the interaction analysis. This analysis has been used to generate a number of parametric solutions which provide a basis for estimating the reduction in settlement of the foundation due to the stabilization of the clay.