May 21, 2006:
Unbuilding P-10
From afar - this may be a bit confused. Basically Michael is unbuilding
P-10 - one of the Grace piers. The concrete Grace piers (P-7, P-8, P-9 and
P-10) are constructed with two outside columns and a hollow core. I was a
bit puzzled by the strategy of knocking out the center first so I phoned
Ken Canty how shared the strategy with me.
Ken said that if you knock the outer columns down first, then there is nothing
to support the inner core resulting in a very unstable structure. However,
but first removing the majority of the inner hollow core, the outer columns
are able to continue to support the overall structure. Once the center
core is removed, then the outer columns can be safely unbuilt.
The Mt. Pleasant worksite - preparations for building the observation /
fishing pier.
The worksite from the Mt Pleasant side - showing P-10 with its inner core
partially removed. To the left is the last remaining steel Pearman
structure which will be explosively dropped on Wednesday morning.
The inner core of P-10 with Mickey's John Henry drilling at the substructure
base of P-11.
To the left, our Demolition Dynamics team is preparing the Pearman
superstructure.
Another view of P-10 and Mickey's drilling
What is left. The Mt. Pleasant pier base, C-3 (C-4 was first
uncapped and then dropped
last week, which I missed but hope to get some photos from Mickey) then
P-9, P-8 and P-7 in the background
Here you can see a superstructure component of Grace between P-8 and P-9
P-10 from the side
and a different view
Looking toward the Motley Rice building
and looking toward the new condo on the Mt. Pleasant side
Mickey's John Henry from behind - and one of the Pearman substructures
Showing P-10 -> P-7 with the Grace fragment between
P-10 again - but perhaps I'm confused and this is P-6?
This is probablly the hammer on the left
Hmm - this is not the John Henry - but the other drilling rig
From the Drum Island side - and now I"m confused - This must
be P-6? with the Grace fragment between P-7 and P-8.