1. Tunnel Monitoring in Australia - a 20-year reflection.
- Author
-
Chan, I.
- Subjects
TUNNEL design & construction ,TECHNOLOGICAL innovations ,ACQUISITION of data ,BEST practices ,STRUCTURAL health monitoring - Abstract
Many road and rail tunnels have been constructed in Australia over the past 20 years. Tunnels have become deeper, shallower (low cover), wider, and increasingly complex in shape and arrangement. At the same time, technological advances have transformed construction tunnel instrumentation and monitoring, data collection, interpretation and stakeholder collaboration. Monitoring is a key input in the validation of design assumptions and analyses, as well as to forward predict ground behaviour. This paper presents the development of best practice tunnel instrumentation and monitoring in Australia, achieved via a trifecta of good monitoring design, monitoring team, and review process. Various monitoring philosophies and systems are discussed, with their capabilities and limitations for ensuring safe tunnel construction. Further, this paper discusses the development of a professional monitoring team with the appropriate skills and expertise for monitoring implementation. Lastly, this paper describes the evolution of a robust and formal monitoring review process in construction, involving the designer and the tunnel contractor, and how this process has led to improvements in safety and efficiency of the tunnelling practice. [ABSTRACT FROM AUTHOR]
- Published
- 2023