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An evaluation of the role of monitoring during the construction of shallow NATM tunnels in urban areas

Jan Pieter van der Berg, C.R.I. Clayton, V.S. Hope

Open publisher page 2 citations

Abstract

Monitoring forms an essential part of the construction of NATM tunnels. After the collapse of two platform tunnels and the concourse tunnel at the Central Terminal Area, Heathrow Airport, in October 1994, an extensive evaluation of NATM tunnelling, including the role of instrumentation, followed. The paper critically evaluates the purpose of monitoring during the construction of NATM tunnels, with specific reference to shallow tunnels in soft soils in urban areas. The instrumentation used during the construction of the station tunnels at Terminal 4 is evaluated with regard to its purpose and performance during construction.

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What this paper is about

Monitoring forms an essential part of the construction of NATM tunnels. After the collapse of two platform tunnels and the concourse tunnel at the Central Terminal Area, Heathrow Airport, in October 1994, an extensive evaluation of NATM tunnelling, including the role of instrumentation, followed. The paper critically evaluates the purpose of monitoring during the construction of NATM tunnels, with specific reference to shallow tunnels in soft soils in urban areas. The instrumentation used during the construction of the station tunnels at Terminal 4 is evaluated with regard to its purpose and performance during construction.

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Available abstract

Monitoring forms an essential part of the construction of NATM tunnels. After the collapse of two platform tunnels and the concourse tunnel at the Central Terminal Area, Heathrow Airport, in October 1994, an extensive evaluation of NATM tunnelling, including the role of instrumentation, followed. The paper critically evaluates the purpose of monitoring during the construction of NATM tunnels, with specific reference to shallow tunnels in soft soils in urban areas. The instrumentation used during the construction of the station tunnels at Terminal 4 is evaluated with regard to its purpose and performance during construction.

Key concepts: New Austrian Tunnelling method, Engineering, Railway tunnel, Terminal (telecommunication), Civil engineering, Instrumentation (computer programming), Tunnel construction, Geotechnical engineering

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