72" Pipe with less than 3' of cover, length of jack 385'. This is the design from the project engineer, I am working for the contractor making submittals on the jacking and receiving pits.
I am working on a pipe jacking project that has jacking forces of over 750 ton with less than 3' of cover over pipe. Conventional backwall systems are not enough, so we are looking to reduce jacking forces on the reaction wall by use of intermediate jacking stations.
How do you calculate the...