Consolidation Behavior of Clayey Soils Under Radial Drainage
Sridharan A, Prakash K, Asha SR
(Received 0 0; accepted 0 0)

Abstract
For Barron's degree of consolidation, U_r, versus the time factor, T_r, relationship for soils undergoing consolidation with radial drainage for the equal vertical strain condition, a simple method has been developed to determine the value of the coefficient of consolidation with radial drainage, C_r. Theoretical log₁₀(d²_e/t) versus U_r curves where d_e is the diameter of influence and I is the real time for the different known value of C_r have been generated. A method has been developed wherein both the theoretical and experimental behaviors of soils undergoing consolidation with radial drainage can be simultaneously compared and studied on the same plot. The experimental log₁₀(d²_e/t) versus U_r curves have been compared with the theoretical curves. Effects of initial compression, secondary compression, and duration of load increment are studied. Simple procedures are presented for calculating the values of C_r using the experimental log₁₀(d²_e/t) versus U_r curves. A comparative study of the coefficient of consolidation and the coefficient of permeability between the cases of vertical and radial drainage has been done.

Keywords:
clays, coefficient of consolidation, compressibility, drainage, permeability, time effects

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Author Sridharan A, Prakash K, Asha SR Title Consolidation Behavior of Clayey Soils Under Radial Drainage Symposium , Committee on