Proceedings of DFI-India 2018: 8th Conference on Deep Foundation Technologies for Infrastructure Development in India, (DFI)
Hydraulic Laterally Extruded Pile: A Method to Enhance Bearing Capacity of Pile
Dinesh Bishnoi, Post Graduate student, Venkateswarlu P., Post Graduate student, Swapnali S. Pawar, Post Graduate student, Upendra M., Post Graduate student and Jignesh B. Patel, Assistant Professor
Constructions of foundation for heavy structure within confined spaces or on the areas which consist of problematic soil is a challenge. Pile foundation is one of the solutions for the mentioned problem but for heavy structures plain pile may be uneconomical. In the present study a new pile (Hydraulically Extrude Pile (HEP)) is proposed, which acts as a plain pile while driving operation and after reaching the desired depth, extrusions along its shaft are embedded in to the soil. These extrusions provide additional bearing resistance to the pile. Plain pile and HEP were tested at three different relative densities (30%, 45% and 60%). The ultimate loads corresponding to 6mm (5 % failure criterion) settlement were determined for both the piles at the above relative densities. The test results show that the HEP provided an increase in capacity of about 37% when compared with plain pile. As the relative density increases, the bearing capacity ratio of HEP and plain pile also increases.
|article #3174; publication #1050 (India2018)|