numerical modeling of end bearing capacity of drilled shafts in sand:case study

 the prediction of the axial capacity of piles has been a challenge since the beginning of the geotechnical engineering profession.the geotechnical axial capacity of a single pile can be estimated by summing the shear stresses along the shaft, adding the bearing capacity of the pile toe. in this paper, a modeling procedure is carried out to numerically analyze the end bearing capacity of drilled shafts in sand.then, the numerical results are compared with the available pile load test. it is seen that numerical results are in good agreement with the results of pile load test. the variation of the end bearing capacity of drilled shafts versus embedment depth is also studied. numerical results show that with increase in pile embedment depth, the end bearing capacity increases. however, the rate of increase becomes smaller as the pile embedment depth increases.