HYDRAULIC DESIGN OF UNLINED ROCK TUNNELS

UNLINED ROCK TUNNEL RESISTANCE COEFFICIENTS CAN BE PREDICTED BY USING A ROCK OVERBREAK PARAMETER. THE IMPORTANT CONSIDERATIONS THAT ENTER IN THE DESIGN OF HYDRAULIC RESISTANCE ARE SUMMARIZED. IT IS FOUND THAT THE PRESENT METHOD OF PREDICTION OF HYDRAULIC RESISTANCE IS INADEQUATE. A STUDY OF TUNNEL ROCK OVERBREAK EXPERIENCE LEADS TO A RELATION BETWEEN ROCK OVERBREAK AND TUNNEL SIZE. THIS MEASURE OF ROCK OVERBREAK PROVIDES A SIMPLE CORRELATION OF FLOW RESISTANCE TEST RESULTS BASED ON THE FULLY ROUGH FLOW EQUATION. /ASCE/

• Supplemental Notes:
  • Vol 95, No HY4, PROC PAPER 6679, PP 1235-1246, 2 TAB
• Authors:
  • HUVAL, C J
• Publication Date: 1969-7

Media Info

• Serial:
  • Journal of the Hydraulics Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Design; Excavation; Flow equations; Flow resistance; Hydraulics; Rocks; Roughness coefficient; Tunnel lining; Water tunnels
• Old TRIS Terms: Overexcavation
• Subject Areas: Design; Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204240
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 29 1994 12:00AM