Preparatory works for construction of the new “Castello” tunnel between km 370+930 and km 371+520 of the Ancona – Bari railroad line, consisting of con- struction of a minitunnel and filling of the abandoned Sangritana tunnel.
1998 | 2000
275 m long Ø 2 m drainage mini-tunnel (pipe-jacking of precast reinforced concrete segments) for new tunnel CASTELLO under Ortona centre town and ancient Castello Aragonese - Jet Grouting treatment for thrust shaft construction adjacent to high speed railway 2-track line - operation maintaining normal train traffic - continuous monitoring of possible lifting or settlement by turning laser device - total drilling about 3.000 m - total Jet Grouting Ø 1000÷1200 mm about 1.650 m.