Publications

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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Conventional Tunneling in Urban Areas

Synopsis: Conventional tunneling as defined by ITA’s Working Group 19 is often referred to as New Austrian Tunneling Method (NATM);

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The Gateway Program – The Hudson River Tunnel Project in New York, New Jersey

Synopsis: The Northeast Corridor (NEC) represents one of the most heavily traversed regions in the United States. Between Amtrak and

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Shallow SEM Tunneling with Limited Clearance to Existing Structures: Design, Construction and Observations

Synopsis: The excavation and initial lining has just been successfully completed for the Downtown Bellevue Tunnel using Sequential Excavation Methods

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SCMAGLEV – Fast and Innovative Mode of Transportation in the Northeast Corridor – Tunneling Challenges

Synopsis: The Northeast Corridor Superconducting Maglev Project (SCMAGLEV) entails con­struction of a high-speed train system between Washington, D.C. and New

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Controlling Risk of Tunneling Projects Implemented by Alternative Delivery Method

Synopsis: The unpredictability inherent in underground projects and the accelerated pace of design-build or P3 tunnel projects can result in

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Design and Construction Challenges in Urban Settings for the NATM Tunnels’ Line 2 of the Riyadh Metro

Synopsis: The Riyadh Metro Project entails the construction of six new lines. ArRiyadh Development Authority, the executive arm of the

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SCMAGLEV Project—Fast and Innovative Mode of Transportation in the Northeast Corridor

Synopsis: The Northeast Corridor Superconducting Maglev Project (SCMAGLEV) entails construction of a high-speed train system between Washington, D.C. and New

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Risk Reduction, Management, and Mitigation from Experience‑Based Learning During Construction of Cross Passages, Seattle, Washington

Synopsis: Cross passages are critical elements in transit and highway tunnels, providing a means of safe emergency egress between adjacent

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