In 2012 Edilmac completed works to bore and expand the detritus-conveyor shaft at the quarry in Colle Pedrino (BG), owned by Italcementi S.p.A.
The works involved the expansion of an existing shaft with a diameter of 4.00 meters to an elliptical cross section of about 6.00 meters.
The difficulties inherent in this undertaking were related for the most part to the 70-degree inclination of the shaft and to the fact that the shaft was already of a substantial size, making it complicated to execute procedures within it.
To carry out the expansion boring operation described above, designed to allow personnel and vehicles to descend the shaft in complete safety, Edilmac constructed special equipment certified by an independent body, with new platforms that required a period of fine-tuning so that they could be adjusted to all the complex processes involved.
Thanks to Edilmac’s professional competence, the work was completed with an excellent outcome and no accidents or injuries were sustained.