Abstract
Negative skin friction occurs when the settlement of the adjacent soil is larger than the pile settlement. Loading the surface next to the pile is one of the most common causes for negative friction to mobilize along the pile’s shaft. In this paper, a numerical simulation will be carried out using Matsui-Abe soil model to study the case of a single pile driven in soft clay layer. Matsui-Abe soil constitutive model represents the Elasto-plastic relation between stress and strain. Negative skin friction (NSF) will be produced due to the soil consolidation. The model will be validated by comparing the results obtained from the primary consolidation with different field tests. A parametric study of the surcharge load will be conducted then to examine the change in negative skin friction (NSF) distribution. Graphs will be obtained showing the relation between loading and changing in the neutral plane location (NPL).
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