Gibson's equation of soil consolidation in convective coordinate and a method for obtaining solutions

Hin Chi Lei, Huei Wen Chang, Ming Jui Hung

Research output: Contribution to conferencePaperpeer-review

Abstract

It was believed that the Lagrangian coordinate system is the most appropriate one to be used in finite strain theory of soil consolidation. The disadvantages of using the Eulerian and convective coordinate systems were described in the papers by Gibson et al.. In fact, the convective coordinate of a material point is a function of time and the Lagrangian coordinate, and thus it is an unknown in a consolidation problem. This, as is well-known, will cause mathematical inconvenience. However, in this paper it is shown that, when formulated in a coordinate system which differs from the convective coordinate system only by a function of time, the equation proposed by Gibson et al. becomes linear if the effect of the self-weight of solids and pore fluid are neglected and the function which plays the role of a coefficient of consolidation is chosen properly. Using this fact we can obtain exact solutions to the equation developed by Gibson et al.. In view of the nonlinear character of the finite strain theory of soil consolidation, any exact solutions are important and noteworthy because they frequently reveal interesting phenomena and serve as a benchmark for numerical schemes.

Original languageEnglish
Pages408-414
Number of pages7
StatePublished - 1996
EventProceedings of the 1996 6th International Offshore and Polar Engineering Conference. Part 1 (of 4) - Los Angeles, CA, USA
Duration: 26 May 199631 May 1996

Conference

ConferenceProceedings of the 1996 6th International Offshore and Polar Engineering Conference. Part 1 (of 4)
CityLos Angeles, CA, USA
Period26/05/9631/05/96

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