When comparing drilled shaft rigs assuming that the torque, crowd, and kelly bar weight are similiar, what type of rig (crane or truck/track) mounted rig would be more efficient at drilling through brick and concrete obstructions?
Does anyone have suggestions for manufactor and installation of a precast concrete pile with an H-pile stinger. These piles will be driven into a calcarenite rock with unconfined compressive strengths of 400 to 700 psi.
thanks in advance
For a pile supported pier structure, when one determines the average properties of the soil in the top 100 feet, per IBC Table 1615.1.1, does this start at the top of the bearing layer for the piles or at the mudline?
thanks for any help
It seems to me that most earthwork contractors consider Size No. 57 stone or something similiar to be "self compacting". Does there exist any aggregate backfill material which is truely "self compacting"? If the answer to this is no, what is the best material and method to place in constricted...
