Ground Freezing for Tunnel Cross Passages – First Application in North America

Industry literature / 12 October 2020 by David M. Mueller, Joseph A. Sopko, Roger B. Storry & Robert Chamberland / Keller
Credit : Keller

Ground freezing was used for the first time in North America to freeze two 2.8m diameter cross passages for the Port of Miami Tunnel. While ground freezing has been used for similar construction in Europe and Asia, this was the first application in North America. This project was complicated by the extremely porous subsea soils. To reduce the permeability of these soils and rock, an initial grouting program was implemented from the ground and channel surfaces. 

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