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Consolidation with threshold gradients
Author(s) -
Pascal Florica,
Pascal Henry,
Murray D. W.
Publication year - 1981
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.1610050303
Subject(s) - terzaghi's principle , consolidation (business) , geotechnical engineering , odometer , mathematics , mechanics , pore water pressure , geology , computer science , physics , economics , accounting , artificial intelligence
Evidence for threshold gradients is reviewed. The consolidation problem, with threshold gradient, is properly formulated and solved numerically. An approximate analytical solution is also developed. The influence of a threshold gradient on the time rate of settlement is examined, and it is shown that by modifying the definition of the degree of consolidation a good approximation to the threshold gradient problem can be obtained directly from the Terzaghi solution. It is also shown that threshold gradients will have no influence on odometer testing and their effect is, therefore, to reduce the primary compression below that predicted from standard tests.