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Description
This report is produced in response to a series of incidents of ground instability and collapse that have occurred on recent tunnelling projects in suburban and city centre environments on which closed-face tunnelling machines were used.
The purpose of this report is to examine the potential for ground instability or collapse when using closed face tunnelling machines, to investigate the efficacy of various ground investigation techniques in urban areas, and to recommend management and operational guidelines to further minimise the risk when tunnelling beneath highly developed urban and
city centre areas. Contents
- Technology of closed-face tunnelling machines
- Choosing between earth pressure balance machines (EPBMS) and Slurry Tunnelling Machines (STMS)
- Incident Data
- Hazards associated with urban tunnelling
- Use of risk management
- Review of site investigation method
- Tunnelling process – construction
- Tunnelling process – monitoring, recording and reviewing
Readership:
Civil engineers, city planners and developers of sustainable public infrastructure.
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