ROCK ANCHORS - STATE OF THE ART PART 3: STRESSING AND TESTING

In the first part of this paper the authors discuss special test anchors with reference to construction and testing conditions in Briain (Littlejohn 1970), Germany (din 4125:1972 and draft din 4125:1974), France (bureau securitas 1972) and Czechoslovakia (draft code 1974). The major advantages of test anchors are stated in relation to the information provided by adequate test procedures. The final part of the paper deals with the long-term behaviour of rock anchors in service, with particular reference to the load-retaining characteristics of anchors for periods in excess of 24 hours after final stressing. To illustrate the importance of the phenomena causing load loss, the authors, in discussing field observations, have assembled some of the better documented case histories. This is the third and final section of the paper on rock anchor stressing and testing. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00174653
• Corporate Authors:

  Foundation Publications Limited

  7 Ongar Road
  Brentwood CM15 9AU, Essex,   England 
• Authors:
  • Littlejohn, G S
  • Bruce, D A
• Publication Date: 1976-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 33-44
• Serial:
  • GROUND ENGINEERING
  • Volume: 9
  • Issue Number: 4
  • Publisher: EMAP CONSTRUCT LIMITED
  • ISSN: 0017-4653

Subject/Index Terms

• TRT Terms: Anchorages; Construction; Creep; Loads; Prestressing; Rocks; Standards; State of the art studies; Stresses; Test procedures; Tests; Time
• Uncontrolled Terms: Anchors; Stressing
• Geographic Terms: Czechoslovakia; France; Germany; United Kingdom
• ITRD Terms: 3420: Anchorage; 4732: Creep (mater); 8027: Czechoslovakia; 8036: France; 8125: Germany; 5567: Load; 4777: Prestressing; 4154: Rock; 187: Specification (standard); 6255: Test; 6288: Test method; 5414: Time; 8119: United Kingdom
• Subject Areas: Construction; Geotechnology; Highways; I43: Rock Mechanics;

Filing Info

• Accession Number: 00142475
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Jul 19 1977 12:00AM