Abstract
The capacity of driven piles in breakable weak sands is less than that of similar piles in strong sands. Numerical simulations using the PFC2D program, based on discrete element method (DEM), were used to investigate the penetration resistance of driven piles. The penetration resistance for an unbreakable granular material and a crushable granular material was examined. A soil composed of weak granular particles had a lower penetration resistance than a similar soil composed of uncrushab]e particles. Particle crushing caused the production of particles of different sizes. Breakage and particle rearrangement induced stress relaxation and caused the broken granular material to develop a lower resistance to pile penetration. Including a simplified tensile failure criterion in the DEM allowed crushing around piles to be analysed and visualised.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call