Urban Tunnel Monitoring: What’s Next?

摘要

In the past 15 years the tools and techniques used to monitor the performance of tunnelrnconstruction in relation to settlement have improved significantly. From manual intrusive instruments therntrend is now to use more automatic, remote sensing, real time and reflectorless techniques. Optical and radarrnsignals are now commonly used for a wide range of high accuracy movement detection and measurement.rnThe improvement of data processing methods and capabilities help to manage the risk. This paper illustratesrnthis evolution with worldwide tunnel case studies and references. Mitigating the risks related to settlement hasrnalways been one of the top priorities of the geotechnical players of the tunneling industry. While other sectorsrnhave adopted smart technology long ago into their decision making processes to manage the risks, the civilrnengineering industry is now understanding the benefits of instrumentation and monitoring applied to all phasesrnof a construction project.