A Polyaxial System for Testing of Jointed Rock Mass Models

A polyaxial loading system was designed and developed at the Indian Institute of Technology, Delhi, India for laboratory testing of the mechanical behavior of rock mass. Large-scale rock mass models of different joint geometry can be tested under polyaxial stress state simulating in situ stress conditions using this true-triaxial system. The system consists of a 1000 kN capacity vertical frame, a biaxial frame of 300 kN capacity fitted with 2 pairs of hydraulic jacks and platens, constant confining pressure unit for applying, monitoring, and maintaining horizontal stresses on specimen faces, an 8-channel data acquisition system, and a personal computer to record all load and deformation data. Successful working of the system was verified by conducting true-triaxial testing on several models specimens of sand-lime blocks having 3 sets of orthogonal joints.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01496115
• Authors:
  • Rao, K S
  • Tiwari, Rajendra P
• Publication Date: 2008-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 285-294
• Serial:
  • Geotechnical Testing Journal
  • Volume: 31
  • Issue Number: 4
  • Publisher: ASTM International
  • ISSN: 0149-6115
  • EISSN: 1945-7545
  • Serial URL: https://www.astm.org/products-services/standards-and-publications/geotechnical-testing-journal.html

Subject/Index Terms

• TRT Terms: Geotechnical engineering; Orthogonality; Rock jointing; Triaxial shear tests
• Subject Areas: Geotechnology; Highways; I43: Rock Mechanics;

Filing Info

• Accession Number: 01108777
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 20 2008 9:08AM