Excavation by grab
Excavation by grab
(OP)
I have seen clamshell grabs used for dredging (silt or sand) and for rock (say 3-10 tonne blasted rock) but what about excavation. Is it possible to use a wire operated clamshell to excavate a stiff clay? Or is it necessary to excavate with hydraulic equipment and use the mechanical grab just for soil movement.





RE: Excavation by grab
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Excavation by grab
However, if equipped with teeth, these buckets can do some digging in hard ground, but have little down pressure to help.
They seem to be most common handling aggregates and other loose materials in stock piles where a long reach is needed.
I've seen them regularly in use to clean out excavations in confined areas where other equipment just can't reach.
RE: Excavation by grab
RE: Excavation by grab
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Excavation by grab
RE: Excavation by grab
RE: Excavation by grab