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Double Breakthrough Connects the Brenner Base Tunnel Beneath the Alps
Both main tubes of the Brenner Base Tunnel have broken through at the Austria-Italy border, about 1,400 meters below the Brenner Pass. […]
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Project Related
Underground Leak Sealing Restores Coal Terminal Operations
Coal handling facilities are tough environments for concrete, especially when long-term water intrusion begins to undermine operations below grade. In this NCFI case study, a coal terminal was dealing with persistent underground leaks in a […]
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Yangtze River TBM Rescue
China has set a new benchmark in underground rescue operations with its remarkable recovery of a stalled 16‑m diameter tunnel boring machine (TBM) beneath the Yangtze River. During construction of the 6.4‑km Jiangyin–Jingjiang Yangtze River […]
Geologic Hazards
Satellite Data and Reporting Highlight Subsidence Patterns Along South Florida Barrier Islands
Recent reporting by the Miami Herald and a new peer-reviewed satellite radar study have drawn attention to subsidence patterns affecting parts of South Florida’s barrier islands. The findings are likely to be of interest to […]
Geologic Hazards
Geovert Video Highlights Kaikōura Earthquake Recovery From the Contractor’s Perspective
I came across this video from Geovert documenting its role in the recovery following the 2016 Mw 7.8 Kaikōura earthquake in New Zealand. It provides a compelling look at the scale and urgency of the […]
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Sumela Monestary Rockfall Mitigation
The Sumela Monastery in the Trabzon Province of Turkey dates to about 386 AD. This iconic building of great historical and cultural significance was founded by Greek Orthodox monks but has been an object of […]
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Deep Injections Arrest Settlement of Tilt-Up Building and Retaining Wall
SlabJack Geotechnical recently tackled a challenging project in Everett, Washington, where a two-year-old tilt-up panel building faced serious subsidence issues. The building, which featured a 30-foot fill CMU block retaining wall, had settled by 2.5 […]
Available Resources
Lessons Learned from the SR-99 Highway Tunnel Project in Seattle, Owner’s Perspective
Geotechnical consultant Gregg Korbin served on the Technical Advisory Board for Washington State DOT for the SR-99 Alaskan Way Viaduct Replacement Tunnel Project. He recently presented to the Vancouver Geotechnical Society on lessons learned from […]
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London Crossrail Geotechnical Challenges and Innovations
The Crossrail project in London was Europe’s largest infrastructure project at the time of its construction beneath metro London, and there were many geotechnical innovations and challenges. Lord Robert Mair of Cambridge University recently gave […]
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Inside Finland’s Nuclear Waste Repository
Finland has the world’s first commercial underground nuclear waste repository, and construction of the access works, infrastructure, and the first five disposal tunnels is essentially complete. I haven’t seen a timeline of when they will […]