07/1173 - Operational Works - Transport Type 6 - Refurbishment of Boathouse & Jetty [As Published] · 142007.1173

11/08 ‘03 MON 08:48 FAI 07 4936 1708 - -ROCLA POLES QLD Gots

(Transport (cont) )

Pile lengths 13m or less

For piles that are short enough to be transported on a standard 12.5m tray
truek, the single tray provides a relatively stiff base for the bearer supports.

Given that :

1. The normal maximum overhang distance from the front end sxle to the end of
the pile = 1.5m.
2. Standard tray trucks can carry a maximum pile length = 13m.
3. The preferred overhang is between (0.15 and 0.2 x pile length). (This amount
of overhang minimises and balances the stresses in the middle of the pile with
that at the suport locations.)
4. The preferred pile weight transference points are over each of the axles or
the centre line ef multiple axles. ie the preferred locations for the pile

( support bearers are over the axles.

: S. The span between axles is about $n.
6. The strongest part of the pile is towards the toe end.

Then Table 1 recommends the preferred loading arrangements :

File length “Bt “beaxer epacing’ a
(m) (nm) {m) (m)
13.0 1.5 9.0 z.5
12.0 1.5 5.0 1.5
d2.0 1,5 8.0 1.5
20,0 1.5 7,0 1.5
2.90 41.5 6.0 1.5
8.0 1.5 5.0 1.5
Table 2
Kotes
1. “two point’ supports are used.

2. The pile head is placed at the front (cab) end of the truck.

3. ‘H' © the distance from the head of the pile to the front support bearer.
“T' = the distance from the toe of the pile to the rear support bearer.

4. For bearer spacings less than 9m, the bearers are assumed to be piaced

centrally between axles to maintain the load distribution into the axles,

5, These arrangemeats are independent of the pile strength type.

With a combination of different length piles per truck, a compromise of
bearer positions ox use of individual bearers needs to be considered, .

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