CROSSING A LARGE TECTONIC FAULT DURING THE CONSTRUCTION OF THE GRAN SASSO TUNNEL

FRANCHISSEMENT D'UN ACCIDENT TECTONIQUE MAJEUR PAR LE TUNNEL DU GRAN SASSO

THE PAPER DESCRIBES THE FOLLOWING: (1) THE CROSSING OF A TECTONIC FAULT ZONE FILLED WITH ROCK DEBRIS AND UNDER CONSIDERABLE WATER PRESSURE (2 MPA); (2) THE REINFORCEMENT OF ROCK STRATA IN FRONT OF THE TUNNEL MOUTH WITH A COMBINED INJECTION OF SILICATE AND BENTONITE CEMENT USING HIGH INJECTION PRESSURE; (3) THE DRAINAGE OF ALL ROCK AREAS ADJACENT TO THE FAULT; (4) THE ORGANIZATION OF THE ACCURATE MULTI-STAGE WORK PROGRAMME NECESSITATED BY THE LARGE CROSS SECTION OF THE TUNNEL; (5) THE CARRYING OUT OF SURVEILLANCE AND TESTS IN THE REINFORCED SUBSOIL. THE COVERING ABSTRACT FOR THE CONFERENCE IS IRRD NO 306088.

  • Authors:
    • BOUTITIE, J
    • LUNARDI, P
  • Publication Date: 1976-3

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  • Accession Number: 01301856
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD
  • Created Date: Nov 21 2010 8:25AM