I have a question about a deep excavation project I am working on and tiebacks, beams and laggings will be necessary.
For grouting the tiebacks, I have noticed different specs require different UCS for the tieback grout.
I was wondering what is the problem or the risk of grouting tiebacks for example using 3000 psi grout vs 4000 psi grout?.
To my knowledge this is more a construction issue than a design issue, am I right?.
I don't think the change in UCS of the grout will change the bond strength of that grout vs the soil or rock.
Please let me know,