INCREASING THE CARRYING CAPACITY OF REINFORCED CONCRETE DRIVEN PILES BY CHANGING THEIR CROSS SECTIONAL GEOMETRY
AbstractThe ultimate carrying capacity of a reinforced concrete driven pile is mainly obtained by calculating the product of its surface area multiplied by the adhesion stress between its shaft and the surrounding soil. For a certain type of soil its average frictional stress with concrete surfaces is taken equal to its value at mid depth of the pile. The surface area of a pile is the product of its cross sectional circumference multiplied by its length. Through this study it was shown that the circumference of a circular cross section is less by 13% compared to the circumference of an equivalent area square section. A suggested star cross section has been investigated; it was shown that it has an increase of 25% in its circumference compared to a square cross section having a similar area. By adapting the suggested star shape cross section driven pile, it is believed that its carrying capacity will be more than that of a square cross section pile by 25%. In other words; to develop the same required carrying capacity of a group of piles, the suggested star shape cross section driven piles can be driven to four fifths of the required depth of the current similar area square cross sectional piles.
Download data is not yet available.
Metrics Loading ...
How to Cite
Darwish, A. M. (2014). INCREASING THE CARRYING CAPACITY OF REINFORCED CONCRETE DRIVEN PILES BY CHANGING THEIR CROSS SECTIONAL GEOMETRY. European Scientific Journal, ESJ, 9(10). https://doi.org/10.19044/esj.2013.v9n10p%p