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Journal of Geotechnical Engineering

UNCERTAINTY OF PILE DESIGN CAPACITY IN GYPSEOUS SAND SOILS

  1. Mohammed Shaker Mahmood
  2. Suha A. Hameed

Abstract

Uncertainty of the design is a problem comes out due to the alteration of the soil properties. Depended on the available geotechnical soil properties of Al Najaf city, a study program is prepared to investigate the effect of the alteration of some soil properties, such as unit weight and angle of internal friction, on the design bearing capacity of a bored pile. The soil of the city is suffering from soluble salts, such as gypsum and lime. These salts, by soaking and leaching processes, cause negative alteration of soil properties leads to negative analysis and design of the structures, such as piles for bridges and buildings. The results of the study give a view on the effect of alteration of mentioned parameters on the design of pile in addition to the length and diameter of pile. The most effective parameter was the soil angle of internal friction (F) for different studied parameters.

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