Monitoring ground deformation in tunnelling: Current practice in transportation tunnels

✍ Scribed by Michael J. Kavvadas

• Book ID: 104017645
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 726 KB
• Volume: 79
• Category: Article
• ISSN: 0013-7952
• DOI: 10.1016/j.enggeo.2004.10.011

✦ Synopsis

Ground deformation monitoring in tunnelling is a common means for selecting and controlling the excavation and support methods among those predicted in design, ensuring safety during tunnel excavation (including personnel safety inside the tunnel and safety of structures located at ground surface) and construction quality. This paper describes the types of ground deformation measurement often used in tunnelling, the difficulties in obtaining these measurements, the methods most commonly used for their evaluation, and the use of deformation measurements (a) in the selection of tunnel excavation and support systems and (b) in establishing early warning systems against ground collapse or damage to structures at ground surface.

Examples of ground deformation monitoring and their application in tunnel design and construction are illustrated by cases from the Jubilee Line Extension of London Underground [Burland et al.,