Dolphin cluster replacement
Dolphin cluster replacement
(OP)
Does anyone have experience in replacing a deteriorated timber dolphin cluster with a concrete pipe pile cluster? Due to geometric constraints, we need to replace in the exact same location as the existing timber dolphin cluster. I'm expecting the timber piles to snap when they try to extract them, so can the drilling machine go through the embedded timber in the mudline in order to core the hole for the proposed concrete pipe pile? Is there a minimum diameter of the bit we should use if we expect to hit timber?
RE: Dolphin cluster replacement
Is this a 7-pile dolphin?
RE: Dolphin cluster replacement
Proposed dolphin cluster is 7 piles at 24" diameter. Existing timber are 12 - 14" diameter piles.
RE: Dolphin cluster replacement
Sort of liquidises the soil for a short period of time so there may be a bit of sediment but then your pile comes out of the ground.
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Also: If you get a response it's polite to respond to it.
RE: Dolphin cluster replacement
Jetting will significantly disturb the stream bed.
Typically, pile extraction is considered part of a qualified Contractor's "means & methods". The Engineer does not specify how to perform the work. If the Engineer gets into the construction details, and the prescribed method does not work correctly... the Engineer, not the Contractor, has a big problem (what to do next).
There are several ways for a Contractor to extract piling.
RE: Dolphin cluster replacement
It's against the rules and one or both posts may just vanish....
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.