Sorry for the redundency of also posting this question in the earth retention forum, but this is pretty urgent situation.
I have a cast in place foundation wall located 4' away from the edge of excavation which is a vertical cut 10' deep. OSHA wants the inner forms braced incase the soil gives way, and caves the forms in.
Obviously the best approach is to retain the soil in place. To accomplish this I suggested trench boxes between the forms and the soil then install braces on the inside of the forms. However, the contractor wants to avoid this if possible.
In the event that I do need to account for the dynamic load of the soil impact, can anyone give me some feed back what they've done in this situation.
I have a cast in place foundation wall located 4' away from the edge of excavation which is a vertical cut 10' deep. OSHA wants the inner forms braced incase the soil gives way, and caves the forms in.
Obviously the best approach is to retain the soil in place. To accomplish this I suggested trench boxes between the forms and the soil then install braces on the inside of the forms. However, the contractor wants to avoid this if possible.
In the event that I do need to account for the dynamic load of the soil impact, can anyone give me some feed back what they've done in this situation.
