Page 31 - Unit2.docx

H (kN) -225 -225 -225 260 260

23.29(0-0.75 = 23.29(0.25) = 23.29(2.25) = 23.29(0.485) = 23.29(0.485) =
M (kN)
-27.47 5.82 29.22 -22.3 22.30

∑ force per pile
233kN* 256kN 279kN* 249 kN 27kN
Q + H + M

*As we can see the maximum load 279kN will be carried by pile c2 and the minimum
load 233kN is carried by piles in row a2

3.3 Symmetrically arranged vertical and raking piles

Just as we did for the previous cases, we first decide the location of the neutral axis
for both the vertical and raking piles.

Extend the two lines till they intersect each other at point c and move the forces Q & H
to point C. (see fig.22)

© It's Engg. Life

Figure 3-22symmetrically arranged piles