Abstract:
Foundation units for a tall building comprising of 6 basements and 105 stories needed to be of 1.2m by 2.8m rectangular Barrettes with lengths varying from 15m to 47m socketed in deep layers of Conglomerates and other evaporites in Dubai. A series of 3 preliminary tests have been conducted with O-Cells to verify preliminary design expectations. The results of the tests were used in conjunction with finite element analysis and traditional pile capacity estimates to finalize the design of the barrettes under the design loads provided by the structural engineer. Later, 4 other working Barrettes were tested under bi-directional load tests as well. Results of these tests and the preliminary tests are analyzed to assess the skin resistance and tip resistance behaviour of the Barrettes. The study aimed to evaluate the final lengths applied to the Barrettes in the project.