April 23, 2014 at 1:00 am
#807272
JoB
Participant
wake..
they won’t be drilling test holes until bertha is ready to run again.. and then only if they run into the same problem again..
there really isn’t anyplace to drill them.. which is why the kind of soil stabilization that would normally occur in these kinds of soil conditions wasn’t done
the same will that would not accept a cut and cover tunnel along the waterfront because the viaduct would have had to come down first isn’t going to be so eager to accept test holes down first avenue that shut down the city’s transportation system.
yes, the soil conditions here were known.. and it was decided to dig in and hope for the best anyway.
that didn’t really turn out so well.