Where we work and we worked

BRAZIL

Gas pipeline Caraguatatube – Taubatè Gastau tunnel

Owner/Client:

Petrobras / Schahin Group

Cost of works:

€ 76 million

Period of Activity:

2008 - 2011

The Petrobras gas pipeline Taurabate - Caraguatatuba will link the gas field at sea level to the Paraíba Valley, a very economically vibrate region with an altitude of 700m at the San Paolo region. The production is aprox 15M m 3 /day of gas. The pipeline passes through the National Park Serra do Mar and to avoid any environmental impact Gastau tunnel was proposed. Gastau Tunnel was built using a Double shield TBM for hard rock for the first time in Brazil. The Tunnel has received the "ASME Global Pipeline Award" for the "Best Innovative Technology for the World ́s Pipeline Industry".

— Project Description:

Gastau tunnel is 5.05km-long and 6.19m diameter. The first stretch, 210m-long starting from the portal has used a drill and blast method and the second stretch, 4840m-long, used a double shield TBM. More then 80% of the tunnel length runs through gnessic and granite formation (the so-called Pico do Papagaio complex), while at the portal, the excavation was in loose materials (weathered rock and residual soil). The tunnel will host initially one pipeline (28” in diameter) for conveying gas through the mountain; future, it may host some additional supply lines (for a maximum of 3) with similar diameter, according to the extraction level and national demand of natural gas in Brazil.

— Description of Services:

Design of the mechanized tunnelling solution, including dimensioning of the precast segmental lining. Follow-up on site of the mechanized excavation, by analysing continuously the TBM performance parameters through the implementation of PAT (Protocol of Advance of Tunnel) with definition of risks, counter measures and corresponding mechanisms of activation.

GEODATA, a provider of sustainable and value-added solutions for underground projects to meet the ever-increasing demands of transportation and sustainable development.

Certifications

GEODATA is certified

  • ISO 9001:2015
  • ISO 14001:2015
  • ISO 45001:2018

GEODATA S.p.A.

  • Corso Bolzano 14
    10121 Turin - Italy
  • +39 011.58.10.611
  • +39 011.59.74.40
  • This email address is being protected from spambots. You need JavaScript enabled to view it.

© 2022 GEODATA SpA - P.IVA 10132770016 | GEODATA Engineering SpA - P.IVA 04639280017 - All rights reserved
Privacy Policy | Cookie Policy | Company details | GEODATA Webmail | Credits