Coefficient of Consolidation and Volume Change for 3-D Consolidation

Abstract

The settlement is the most serious problem of fine soil. This settlement is caused by a phenomenon called soil consolidation. Most previous studies were concerned with studying one (1-D) and two-dimensional (2-D) consolidation. That in some cases does not give a simulation of reality representation. It was necessary to study the three-dimensional (3-D) consolidation to simulate what happens to the fine soil in nature. Therefore, the consolidation behavior of four fine soils was studied in this paper. The studied soil samples were collected at the foundation levels of four different sites in El-Qalubia governorate, Egypt. A series of laboratory consolidation tests were carried out as one, two and three dimensional consolidation by using manufactured Oedometer apparatus. So, the effect of consolidation conditions (1-D, 2-D and 3-D) on consolidation coefficient (Cv) and volume change coefficient (mv) was investigated. Also, an empirical equation was correlated the relationship between Cv and mv.

Effect of Drainage States on Consolidation of Cohesive Soil Within Plasticity Range

“…The case of Three-dimensional consolidation needed less time to arrive complete consolidation (U = 100%) than one dimensional consolidation and two-dimensional consolidation. The average values of Coefficient of consolidation for Threedimensional consolidation are more than one dimensional consolidation and twodimensional consolidation about 32.8% and 22.15% under the same applied stress [6].…”