ANCHORAGE TESTS ON STRAIN-GAUGED RESIN BONDED BOLTS

Various aspects of resin bonded rock anchorages are examined using design data based on the results of pull-out tests on specimen anchorages. In such tests the bonded bolt is loaded to failure, this point being determined in terms of deformation or loss of peak load, where it is assumed that the load is evenly distributed as a shear stress along the bonded anchor length. Tests were carried out to study the influence of high bond stresses at the loaded end of the anchor, and also the mechanism of anchorage failure. Results show axial stress and embedment for 750mm and 300mm bonded length bars. A formula is derived for shear stress at the steel/resin interface. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0041414X
• Corporate Authors:

  Morgan-Grampian Limited

  30 Calderwood Street
  London SE18 6QH,   England 
• Authors:
  • Dunnam, R K
• Publication Date: 1976-9-10

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 73-76
• Serial:
  • Tunnels & Tunnelling International
  • Volume: 8
  • Issue Number: 6
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Anchorages; Bonds; Chemical bond; Failure; Loads; Resins; Rocks; Shear strength; Shear stress; Stresses; Synthetic resins; Tests
• ITRD Terms: 3420: Anchorage; 7136: Bond (chem); 5520: Failure; 5567: Load; 4154: Rock; 5531: Shear; 5575: Stress (in material); 7460: Synthetic resin; 6255: Test
• Subject Areas: Geotechnology; Highways; Materials; I43: Rock Mechanics;

Filing Info

• Accession Number: 00145377
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 13 1977 12:00AM