See Attached Was assisting other EE's in grinding on end of a spool. Co-EE heard a popping noise and the end of the pipe he was working on shifted. When he looked to the IEE he saw EE's head pinned to the concrete by the end of the spool (approx 2,700 lbs.) Co-EE's used forklift to hoist the spool off of the EE. 911 called rescue team transported EE to hospital.