How do you typically handle sealing of multiple pipes going through a concrete retaining wall?

You could use Stopaq FN2100 water sealant, works on wet surfaces up to 0.3 bar water pressure, one installed mortar can be placed to give a fire rating. Stopaq Moviebox

I am constructing a water treatment plant. I need to install 700 mm dia. Cast-in pipe on the wall. How the pipe shall be supported to ensure that it will not move during concreting of the wall? Wall height is 6 m.

Thanks.