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Conference Proceedings

15th Australasian Tunnelling Conference 2014

Conference Proceedings

15th Australasian Tunnelling Conference 2014

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Current and Best Practice for Monitoring Tunnelling Projects in Urban Areas - Alaskan Way Bored Tunnel, Seattle, Washington

Establishing a robust geotechnical instrumentation and construction monitoring plan is one of the keys to the successful delivery of the world's largest soft-ground bored tunnel in Seattle, Washington. The paper describes and provides a return of experience on current and best practice for monitoring tunnelling projects in urban areas. The owner's contractual approach is discussed to highlight the flexibility of the design-built contract in achieving equal or better solutions by allowing for the use of innovative technics. Special attention is given to the management and involvement of third parties (building owners, utility owners), including the public, to overcome all challenges faced during the installation of the monitoring system in downtown Seattle for over 1000 instruments. Finally, the authors present the strategies implemented for managing the monitoring data and communicating with the owner, contractor and stakeholders.CITATION:Sowers, D, Galisson, L and Audig, E, 2014. Current and best practice for monitoring tunnelling projects in urban areas - Alaskan Way bored tunnel, Seattle, Washington, in Proceedings 15th Australasian Tunnelling Conference 2014 , pp 441-450 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Current and Best Practice for Monitoring Tunnelling Projects in Urban Areas - Alaskan Way Bored Tunnel, Seattle, Washington
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  • Published: 2014
  • PDF Size: 3.788 Mb.
  • Unique ID: P201411051

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