R e v i e w submittal on pile driver to see how well contractor has matched
3.
pile driver to pile.
PREPARATORY INSPECTION
B.
1. For H-piles : I s contractor prohibited by job specifications from
splicing H-piles at job site? I f not, has QAP or his supervisor required a
s h o p drawing be submitted to Resident Office for approval to show splicing
details? Will the splices be staggered? Has a maximum number of splices per
p i l e been established by specifications or Contracting Officer? Has welding
p r o c e d u r e been submitted to Contracting Officer for approval? Are welders
c e r t i f i e d for the type of work they are required to perform and have
c e r t i f i c a t i o n s of welders been submitted to Contracting Officer?
H a v e locations of load-bearing piles been staked by survey?
2.
3. Are CQCI and yourself satisfled that that contractor is satisfactorily
h a n d l i n g and storing piles in accordance with the following criteria?
a . All piles should be stored on level ground on timber blocking so that
t h e axis of each pile is maintained in a straight line.
T i m b e r (round) piles should be stacked alternately butt to tip, with
b.
b l o c k i n g between layers.
c. Steel H piles should be stacked flange to flange, with a 2-inch space
between flanges and with blocking between layers.
( T h e 2-inch space
f a c i l i t a t e s the use of slings for handling as does the blocking.)
Pipe piles in single and double random lengths can be stored in one of
d.
2 ways.
( 1 . ) In the first method, the stack is built in layers with the pipe
in each layer touching the next pipe and with blocking between
( T h e blocking is not for handling; rather it keeps the
layers.
lowest outside pipe from being pushed out under the weight of
t h e stacked pipe, w h i c h would lead to the collapse of the entire
stack.
( 2 . ) In-the second method, the stack is built in layers, with each
s u c c e s s i v e layer containing one less length of pipe and with no
b l o c k i n g between the layers. The end pipe on the bottom layer
must then be blocked or welded to the adjacent pipe to prevent
collapse of the stack.
e. Precast concrete piles must be stored so that their pickup points rest
o n level blocking, or else the piles will crack. It is also necessary
t o locate the blocking of successive tiers exactly over the blocking
b e l o w or the weight of the upper layers of piling will break the lower
piles.
4 . A s s u r e that CQCI is checking piles stored at job site for damage and
defects.