Holdfast Training Services Trial Blog

Here is a sketch our our North Basement Cofferdam.  The deisgn by the Temp Works Engineer (Walsh Gp) assumed that the waling would be propped off of a slab (see sketch below).  The only problem is that the waler cannot prop off the slab! 

The temp work engineer proposed welding the waler to the sheets to ‘pacify’ Mace.  Can you load a sheet pile wall with a shear load,  ie using the sheet pile wall as a prop itself!!!  I’ve yet to dig into the detail but is it even a starter! 

A complicating factor is that the North Wall is a party wall and deflection must be kept below 12mm!

The piles in question are 11m long PU28-1SSP.

T