SS 106 Jonica
Construction of twin-tube tunnel, geological loose sands, excavation method in traditional heavy consolidation consists of n. 54 jet grouting columns Ø 800 ml. 15.00 in cap, armed with steel pipes Ø 130 and n. 70 get grouting columns Ø 800 ml. 12,00 to the front armed with VTR, fields of excavation ml. 9.00.