October 2021
Stabilization of Seismic Lateral Spreading for Waterfront Structures
Lateral spreading represents some of the most complex and consequential geotechnical hazards. Advanced Geosolutions Inc. (AGI) supplies the engineering excellence, performance history, and construction resources to optimize a design and deliver a product that balances performance, cost, and schedule according to the client’s priorities. One such project in the San Francisco Bay area comprised multiple technologies, including: Wick Drains (WDs) to expedite a surcharge program; Rapid Impaction Compaction (RIC) to densify shallow liquefiable soils; and Deep Soil Mixing (DSM), configured as an underground buttress to limit lateral spread deformations. AGI is the clear industry leader economically addressing complex geotechnical hazards. 
BARREL BAGS: Woven-Nonwoven Bags Used in MPSP Technique
SIREG's TNT450 Barrel bags are a technical solution to seal the annular space around TAM Pipe and Drainage Pipes in order to prevent the raising up of the fluids along this space. The system is composed of an expandable packer made of woven-nonwoven polypropylene fabric. The bags are inflated in-situ with OPC grout and once that cement hardens, the bags have a plug effect around the pipes. This technique was used successfully in Mosul Dam in Iraq (TREVI-USACE), Iskar River Hydro-Plant Bulgaria, IDRISS project Qatar and in many other sites.
SONITEC®, The CSL Tube, a Proven Technology Now Available in the U. S.
Crosshole Sonic Logging (CSL) has been successfully used to evaluate the integrity of deep foundation systems since the early 80’s. Sonitec®, the only steel pipe system specifically designed and manufactured for CSL has been widely used internationally for over 20 years. In late 2020 Dextra America, based out of Washington state, established manufacturing of their Sonitec® CSL tubes in the U.S. for the first time, making this proven technology now easily available for projects in the United States. Their exclusive distribution agreement with Foundation Technologies, Inc. based out of Lawrenceville, Georgia, brings the unique Sonitec® design to the U.S. market. 
Carpenters Union's COVID Course Hits Milestone
The COVID-19 pandemic continues to challenge all of us, but construction work continues—and members are in high demand on projects of all kinds, thanks to the impact of UBC training. The Carpenters International Training Fund (CITF) recently announced a milestone in its effort to keep UBC members safely on the job during the pandemic: More than 50,000 members have taken CITF’s COVID-19 Preparedness Qualification course. Across the U.S. and Canada, the course is helping keep jobs open and members working steadily. About half the participants have taken the course online through the CITF’s Learning Management System (LMS), while half have taken it in-person at regional training centers, using social-distance and safety protocols.
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