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Tension Tests on Driven H-Piles in Sand and Clay
In most soils, driven H-Piles are generally considered as small displacement piles, that is, the volume of soil displaced during installation is generally small. In most soils the installation of H-Piles likely progresses without significant plugging and the pile advances giving full contact of soil along the web and between the flanges. Very little is known about the tension behavior of H-Piles in these soils. In order to evaluate the uplift capacity for use as foundations for solar panels arrays, tension tests were performed on driven H-Piles at six different test sites. The embedded lengths of the piles varied from 2.4 to 3 m (8 to 10 ft.). The sites consisted of a range of soils, from uniform clean medium sand, silty fine sand and silty clay and included both saturated and unsaturated site conditions. Short term tension tests (1 day and 7 day) to failure were conducted at each site. Examples of the installation driving records are also shown. The unit side resistance of the piles was evaluated assuming both full soil movement (plugged) and no soil movement (unplugged) during loading for each test. It is suggested that the unit side resistance may relate to the Effective Area Ratio of the piles.
Tension Tests on Driven H-Piles in Sand and Clay
In most soils, driven H-Piles are generally considered as small displacement piles, that is, the volume of soil displaced during installation is generally small. In most soils the installation of H-Piles likely progresses without significant plugging and the pile advances giving full contact of soil along the web and between the flanges. Very little is known about the tension behavior of H-Piles in these soils. In order to evaluate the uplift capacity for use as foundations for solar panels arrays, tension tests were performed on driven H-Piles at six different test sites. The embedded lengths of the piles varied from 2.4 to 3 m (8 to 10 ft.). The sites consisted of a range of soils, from uniform clean medium sand, silty fine sand and silty clay and included both saturated and unsaturated site conditions. Short term tension tests (1 day and 7 day) to failure were conducted at each site. Examples of the installation driving records are also shown. The unit side resistance of the piles was evaluated assuming both full soil movement (plugged) and no soil movement (unplugged) during loading for each test. It is suggested that the unit side resistance may relate to the Effective Area Ratio of the piles.
Tension Tests on Driven H-Piles in Sand and Clay
Lutenegger, Alan J. (author) / Khalili, Jahan (author) / Orszulak, Thomas (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 1087-1096
2015-03-17
Conference paper
Electronic Resource
English
TENSION TESTS ON DRIVEN H-PILES IN SAND AND CLAY
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