Page 38 - Unit2.docx
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sum of forces on each pile
pile Q/N (kN) 45.3 (r )
xi
P = Q/n ± ( M ⋅ r )/ ∑ r 2 xi
z
xi
i
2 83.3 45.3⋅ (-0.72) 52
2 45.3⋅ (0.79) 49
3 45.3⋅ (-0.62) 55
4 45.3⋅ (0.88) 223
5 45.3⋅ (-0.82) 47
6 45.3⋅ (0.49) 205
© It's Engg. Life
LOAD ON SINGLE PILE
4.2 Introduction
In this section, considering pile/soil interaction, we learn to calculate the bearing
capacity of single piles subjected to compressive axial load. During pile design,
the following factors should be taken into consideration:
pile material compression and tension capacity
deformation area of pile, bending moment capacity
condition of the pile at the top and the end of the
pile eccentricity of the load applied on the pile
soil characteristics
ground water level ..etc.
Nevertheless, calculation method that can satisfy all of these conditions will be
complicated and difficult to carry out manually, instead two widely used simplified
