AN OPINION ABOUT SELECTING THE SUITABLE TYPE OF MACHINE FOR LOG YARD:BASED ON THE DEVELOPING TREND OF UNLOADING-STACKING-LOADING COMBINED OPERATING MACHINE

Based on the developing history of loading-unloading machine and the characters of loading-unloading operation for log yard,the lifter for ports,specially the moving swing crane,would be considered to be the developing direction of unloading-stacking-loading combined operating machine for log yard.According to the above opinion,we may predict that the tower crane should be in common use for log yard in the forest regions of south China.