The Behavior of Pile Group Under Inclined Static Load With Different Angle of Inclination in Sandy Soil

Reyah Daher; Jasim  M. Abbas

doi:10.24237/djes.2021.14205

Authors

Reyah Daher
eng_grad_civil032@uodiyala.edu.iq
Department of Civil Engineering, College of Engineering, University of Diyala
Jasim M. Abbas Department of Civil Engineering, College of Engineering, University of Diyala

Keywords:

Inclined loading, Pile foundation, Bearing capacity, Sandy soil

Abstract

Pile is the form of deep foundation some time may be applying as a condition of inclined loading. There are limited experimental studies in existence on the performance of vertical piles exposed to inclined loads. In this paper, a static inclined load with four angles applied load varying (i.e., 0,15, 30, and 45 degrees) from the horizontal axis of the pile are used to the comparison of behavior for pile group as a three configurations 2x2, 2x3, and 3x2 in sandy soil. The experimental works include a soil tank and several of tools used to achieve the objective of this study. It can be seen that the pile group is influenced by the angle of inclination of applying load, furthermore the results displays that the increase in spacing between pile cause decrease lateral movement under the similar angle of inclination of load applied. The performing of each models better-quality using S/D=7, this is attributable to reduce the interface of pile-soil-pile for the group. Groups 2x3 showing resistance and have bearing capacity to the lateral displacement from other groups about 40% for group 2x2 and about 50% for group 3x2.

Conclusion

The inclination angle for applied load influences on the responses of laterally displacement. The bearing capacity of pile group are increasing with increase the inclination angles and become near to the vertical axis and leads to less displacement of the pile head.
When spacing of pile increases, lateral deflection decreases in the similar load applied. Also, the difference caused by spacing of pile can be evidently noticed in all piles and rows, which is attributable to the influence of overlap among the pile-soil-pile in the group.
The configuration of pile group creates variations in ultimate resistance of soil for similar quantity of lateral load. The quantities of resisting load for the first trailing row considerably more than the quantities detected from the leading row. The group (2x3) showing more than (3x2) due to the increasing number of piles in the first trailing row.

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