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PDH Online Course Description PDH Units/
Learning Units (Hours)
NA N251
Ground Freezing (1-Hour Live Webinar)

Joseph Sopko, Ph.D., PE

This webinar will introduce Keller North America's latest ground freezing techniques in geotechnical construction. Topics will include thermal properties of soils, mechanical properties of soils, design concepts of ground freezing, installation process of a ground freezing system, case history of access shaft in Buenos Aires, concepts of liquid nitrogen, case history of TBM recovery Port Mann, Vancouver, shaft freezing, tunnel freezing, and groundwater barriers.

Keller North America provides a wide range of geotechnical engineering and construction services to improve soils in-place and to both construct new and to rehabilitate foundations. Within our range of services, a Ground Modification solution is generally available for the toughest subsurface conditions.

If you have already attended this seminar and would like to obtain a Certificate of Completion free of charge, please click on the following link:

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.