DARS d.d., Ulica XIV.divizije 4, 3000 Celje, tel. +386 3 426 40 40
INR 920,00 Crore
PRELIMINARY DESIGN, BUILDING PERMIT DESIGN, FINAL DESIGN
2018
Basic information:
• Construction design of East tunnel tube and reconstruction design of West tunnel tube
• Tunnel length: 7820.00 m
• Slovenian part: 3446.17 m
• Area of clearance profile: 44.25 m2
• Excavation area: 95-116 m2
• Overburden: 800 m to 1200 m
Challenges and innovation: construction procedure in extremely foliated and squeezing rock mass at great depth with special adaptation of yielding elements and micro reinforced shotcrete lining together with steel support and high capacity rock anchors. In Permo-carboniferous squeezing ground dangerous gases as a CH4, CO, CO2, which require special ventilation system and special care during construction, have been encountered.