Our dedicated team of experts are authors and co-authors of several technical papers on the subject of tunneling and geotechnical engineering.

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Selection of Alignment and Tunnelling Methods in Urban Settings

Synopsis: One of the challenges of the 21st century in urban settings is to provide solutions to increasing traffic.  The

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Pre-Support Measures for Shallow NATM Tunneling in Urban Settings

Synopsis: Pre-support measures for urban tunneling have seen a substantial development in the recent past. Ground improvement techniques, pipe-arch and

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The Dulles Corridor Metrorail Project – Tunneling Options for Tysons Corner

Synopsis: Metropolitan Washington Airport Authority is currently undertaking the first Phase of Metro’s Extension to Northern Virginia. A wide range

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Fiber Reinforced Shotcrete for Tunnel Linings

Synopsis: The use of shotcrete for ground support is well established since several decades. However, the development of high quality

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FE Modeling for the Shallow Fort Canning Tunnel

Synopsis: The Fort Canning Tunnel, Singapore, is an approximately 15m wide vehicular tunnel that has been mainly constructed according to

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Monitoring Successful NATM in Singapore

Synopsis: The Fort Canning Tunnel, Singapore, is an approximately 50 feet (15m) wide vehicular tunnel under shallow ground cover that

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The Dulles Corridor Metrorail Project – Extension to Dulles International Airport and Its Tunneling Aspects

Synopsis: The Virginia Department of Rail and Public Transportation and the Metropolitan Washington Airports Authority are undertaking the extension of

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NATM Through Clean Sands – The Michigan Street Experience

Synopsis: A 100 ft long, 20 ft high and 18 ft wide NATM tunnel was excavated through grouted clean sands

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