THE "GRAN SASSO" MOTORWAY TUNNEL IN THE "FONTARI" TRANSVERSE FAULT. A NEW EXPERIENCE IN CROSSING LARGE FAULTS WITH MYLONITE

As a consequence of complex tectonic events connected with huge movements of the strata, many faults have subdivided the Gran Sasso Mountains, giving rise to some important rock mylonitisation phenomena. The major fault was met at chainage 5000, on the Assergi side and was mylonite-cataclasite rock 70 meters thick with an upstream water pressure of 6 mn/sq M. After a first reinforcement by injections of a short section on the left side, it has been possible to get through the fault only by means of groups of draining holes, which duly lowered the water pressure. Thus it was possible to carry out subsequent rock excavation on a partial section. (TRRL)

• Supplemental Notes:
  • Papers from the 9th IRF World Meeting, Roads Into the Future--Road Materials and Construction--TS4, held in Stockholm, June 1-5, 1981.
• Corporate Authors:

  Svenska Vaegfoereningens Foerlags AB

  P.O. Box 27115
  S-102 52 Stockholm,   Sweden 

  Svenska Vaegfoereningens Foerlags AB

  P.O. Box 27115
  S-102 52 Stockholm,   Sweden 

  Svenska Vaegfoereningens Foerlags AB

  P.O. Box 27115
  S-102 52 Stockholm,   Sweden 
• Authors:
  • Perotti, M
• Publication Date: 1981

Media Info

• Features: Figures;
• Pagination: p. 399-414
• Serial:
  • Publication of: Svenska Vaegfoereningen Foerlags AB
  • Publisher: Svenska Vaegfoereningens Foerlags AB

Subject/Index Terms

• TRT Terms: Conferences; Drainage; Excavation; Excavations; Faults; Material reinforcement; Rocks; Tunneling; Tunnels
• Uncontrolled Terms: Injection; Injection (Materials)
• Geographic Terms: Italy
• Old TRIS Terms: Rock tunneling
• ITRD Terms: 8525: Conference; 2937: Drainage; 5155: Excavation (process); 4068: Fault (geomorphol); 3617: Injection (mater); 8051: Italy; 4154: Rock; 3374: Tunnel
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Hydraulics and Hydrology; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00345621
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, TRIS
• Created Date: Feb 27 1982 12:00AM