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Home > United Facilities Criteria CD 2 > > TR-7: Replacing Damaged Pile With New Timber Pile Under Timber Pier Deck
Figure 6-6 Repair by Oriented Fiber Wraps
Figure 6-7 Replacing Damaged Pile with a New Timber Pile

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UFC 4-150-07
19 June 2001
TR-7: REPLACING DAMAGED PILE WITH NEW TIMBER PILE
UNDER TIMBER PIER DECK
Problem: Physical damage or severe pile deterioration has been experienced
below mudline, and/or a number of piles with severe deterioration (above
mudline) is too extensive to maintain structural integrity with partial pile
replacement.
Description of Repair: Cut an opening in the timber pier deck adjacent to the
damaged pile. Drive the new pile and cut to fit under the pile cap. Spring the pile
into place (see Figure 6-7). Place shims between the pile and pile cap, then
fasten pile to pile cap with a 22-mm (7/8-inch) diameter drift pin.
Application: Limited mainly by cost. If fixed structures are on deck, this method
may not be cost effective. If damage to the original pile(s) is due to marine
borers, remove old pile(s) so that it does not provide bait to attract and nourish
more borers. This application can also be used to replace damaged concrete or
steel piles.
Future Inspection Requirement: Basically the same as for a new pretreated
pile.
6-19






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