Page 27 - Unit2.docx

(4) 0 m + (2)⋅ 2m + (2)2 m = n· n·e o , ⇒ n·e o = = 0.75 m

∴ The neutral axis for the vertical piles is located at 0.75 m from the ¢ line of pile a2,
a2, a3, a4. ⇒ (2.0 -0.75 )m = 0.25m ⇒ X = 0.25 m, the distance to the vertical load Q.

where:
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n·e o = 8·e O and the numbers 4, 2, 2 are number of piles in the same axis

2. N.A for the raking piles:

Here we can assume that the ¢ for the raking piles b2and b4 as a reference line
and calculate the location of the neutral axis for the raking piles as follows:

(2)⋅ 0 m + (2)2m = (m)e 2

where: (m )e 2 = 4⋅ e 2 , 4 is the total number of raking piles.

∴ 4⋅ e 2 ⇒ e 2 = = 0.5 m ⇔ the location of neutral axis of raking piles at a distance of
( 0.25 + 0.5) m = 0.75m from e o or from the N.A Of the vertical piles.