INSTRUMENTATION AND MONITORING

Some factors affecting the instrumentation and monitoring of tunnels, with particular emphasis on experience gained during the Chinnor tunnelling trials by the Transport and Road Research Laboratory, are discussed. The purpose of the instrumentation and monitoring is the measurement of factors involved in tunnel construction: time and motion studies, ground characteristics, cutting forces and energies, stresses and displacements in the ground and lining. It is stressed that, in setting up an instrumentation and monitoring programme, it is essential to have a clear objective, and to calibrate the instruments, ensuring the reproducibility of ground property measurements. With reference to the Chinnor tunnelling trials the concepts of face indexing (characterising of the rock) and ground movement measurement are explained. In addition, measurements made at the shaft are summarised. /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:
  • HUDSON, J A
  • Priest, S
• Publication Date: 1975-9-10

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 64-70
• Serial:
  • Tunnels & Tunnelling International
  • Volume: 7
  • Issue Number: 5
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Calibration; Coefficients; Compression; Drilling; Faults; Ground handling; Index tests; Instrumentation; Measurement; Measuring instruments; Mechanical stability; Monitoring; Motion; Properties of materials; Quality control; Rocks; Strength of materials; Stresses; Test procedures; Tests; Time and motion studies; Trials; Tunnel lining; Tunnel shafts; Tunneling; Tunnels
• Uncontrolled Terms: Quality; Reproducibility
• Geographic Terms: United Kingdom
• Old TRIS Terms: Ground conditions; Index properties
• ITRD Terms: 6155: Apparatus (measuring); 6410: Coefficient; 5532: Compression; 3871: Drilling; 4068: Fault (geomorphol); 6136: Measurement; 5483: Movement; 5925: Properties; 9063: Quality; 5927: Reproducibility; 4154: Rock; 5930: Stability; 5544: Strength (mater); 5575: Stress (in material); 6255: Test; 3374: Tunnel; 3385: Tunnel lining; 8119: United Kingdom
• Subject Areas: Aviation; Bridges and other structures; Construction; Geotechnology; Highways; Law; Materials; I54: Construction of Tunnels;

Filing Info

• Accession Number: 00134372
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 16 1976 12:00AM