Proceedings of DFI-India 2019: 9th Conference on Deep Foundation Technologies for Infrastructure Development in India, (DFI)
Response of a Single Pile Located on Sloping Ground under Dynamic Loading
Deendayal Rathod, Ph.D., D. Nigitha, Ph.D., and Krishnanunni K. T., Ph.D.
Pile foundations are extensively used to support the laterally loaded structure. The structures like high-rise building, transmission tower, power station and offshore structures are subjected to lateral load in addition to the vertical load. The behavior of the piles on sloping ground under earthquake loading is different from the behavior of the pile located on the horizontal ground surface because of the large permanent displacement. In the present study, the numerical analysis has been carried out by using PLAXIS 2D. The analyses are carried out on single model pile under dynamic loading to determine the behavior of the soil-pile system. A single pile of embedment length to diameter ratio (L/D) of 16, 25 and 33 were located on the horizontal ground surface and slope angle of 1V:1.5H, 1V:2H and 1V:3H. The pile was subjected to dynamic loading (Bhuj earthquake, Gujarat) at its base. From the analysis, the acceleration, displacement and bending moment of the pile under each case was studied. Based on the results, it is concluded that as L/D ratio increases, the acceleration and maximum displacement and bending moment of the pile decreases.
|article #3292; publication #1059 (India2019)|