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  Shaft sinking by drill and blast using the new concept service equipment for shaft “G18-GC30/15”

  Edilmac dei F.lli Maccabelli, thanks to the big experience in shaft excavation, has developed a new service equipment used in the construction of underground vertical tunnels which are already called shafts. The Equipment has been built by an Italian constructor on the EDILMAC idea and it is constituted principally of three parts: a steel gantry crane, a platform for the transportation of goods and a basket for the transportation of personnel. The main use of the equipment is the enlargement to big diameter of a pilot shaft previously drilled by Raise Boring Method, following these phases until the bottom of the shaft (see fig.1):

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