An analytical model for radial consolidation prediction under cyclic loading

Monideepa Paul , Kaustav Bakshi , Ramendu Bikas Sahu

Abstract

The excess pore pressure increases under undrained cyclic loading which cause decrease in effective stress followed by possible failure in the soft soil. With the inclusion of vertical drains radial drainage allows quick dissipation of excess pressure during cyclic loading and thereby failure of foundation soil may be avoided. The present study aims for analytical closed-form investigation on soft cohesive deposit under radial flow consolidation through vertical drains with no smear when subjected to long-term rapid cyclic loading. The mathematical formulation of pore pressure including degree of consolidation under cyclic loading is developed by using Green

Key Words

cyclic stress ratio; effective confining pressure; frequency; number of cycles; plasticity index; pore water pressure; radial consolidation

Address

Monideepa Paul: Department of Civil Engineering, Heritage Institute of Technology, Kolkata-700107, India Kaustav Bakshi: Department of Civil Engineering, Indian Institute of Technology Indore, Madhya Pradesh 452020, India Ramendu Bikas Sahu: Department of Civil Engineering, Jadavpur University, Kolkata- 700032, India

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