INSTANT SHOTCRETE SUPPORT IN ROCK TUNNELS

SHOTCRETE PRACTICE & EQUIPMENT, WHICH HAS BEEN SPECIALLY DEVELOPED TO MEET THE TUNNELLER'S DEMANDS, IS DESCRIBED. THE HYDRAULICALLY OPERATED ROBOT; THE SPECIAL TRANSPORTING AND MIXING UNIT, TRIXER; AND THE USE OF CHEMICAL ACCELERATING ADMIXTURES ARE DISCUSSED. IT HAS BEEN REPORTED THAT THE USE OF SHOTCRETE HAS REDUCED THE COST OF SUPPORTS AND LINING BY 70% AS COMPARED TO A CONVENTIONAL STEEL SUPPORT SYSTEM. FOR SOME PROJECTS THE OVERALL FINANCIAL SAVING HAS BEEN 20 TO 25%.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0041414X
• Supplemental Notes:
  • Vol 3, No 1, PP 29-32, 26 REF
• Authors:
  • Alberts, C
  • Backstrom, S
• Publication Date: 1971-1

Media Info

• Serial:
  • Tunnels & Tunnelling International
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Costs; Hydraulic equipment; Rocks; Shotcrete; Structural supports; Tunnel lining; Tunneling
• Old TRIS Terms: Supports
• Subject Areas: Bridges and other structures; Construction; Finance; Geotechnology; Highways;

Filing Info

• Accession Number: 00215381
• Record Type: Publication
• Files: TRIS
• Created Date: May 3 1971 12:00AM