Construction scene from the Yangtze River tunnel project, where engineers executed the precision TBM rescue.
Project Related

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 […]

Available Resources

Keller Shares 2025 Year in Review Video

Keller, a long-time sponsor of GeoPrac.net, has released its 2025 Year in Review video, highlighting project achievements, technical milestones, and company activities from the past year. The video provides a look back at how Keller […]

Typical construction sequence including grout tube installation and injection beneath column and wall footings.
Ground Improvement

Polyurethane Grouting for Foundation Re-Use at the Kentucky International Convention Center

The reuse of existing foundations can offer significant schedule, cost, and sustainability benefits on large renovation projects, but it also introduces geotechnical challenges that are not always straightforward to address. One such challenge is how […]